[0001] The present invention relates to the field of electro-refining. More specifically, the present disclosure relates to a system for scraping of silver from cathode plate.
BACKGROUND
[0002] Electro-refining is the process for refining of pure metal from the impure metal wherein extraction of pure metal is done by electrolysis. In general, electro-refining is the refining of a metal by electrolysis. The crude metal is used as the anode which goes into the solution and the pure metal is deposited upon the cathode. Electrolysis is a technique by which metal ions are continuously getting deposited on the surface of cathode plates after passing Direct Current through anode plates. The pure metal which gets deposited on the surface of cathode plate is scrapped by workers manually by specific tools. The manual scraping is required to be carried out by the workers after every electro-refining process in order to extract silver from the cathode plates. The manual scraping consumes time and the workers are exposed to hazardous fumes during the manual scraping. In order to reduce the time required for scraping of pure metal from the cathode plate and improve the working condition of the workers, there is a need for a new system which overcomes the above-stated disadvantages.
SUMMARY
[0003] In an aspect, the present disclosure provides a system for scraping of silver from cathode plates during electro-refining of silver. The system includes a pneumatic cylinder secured to a valve and positioned in the inverted direction with respect to movement of a piston rod of the pneumatic cylinder. In addition, the

system includes a header attached with the piston rod of the pneumatic cylinder. Further, the system includes one or more holding brackets fixed on the header. Moreover, the system includes a plurality of scrapers secured to a plurality of scraper holders. Also, the system includes one or more cathode plates secured on a plurality of bus bars at the lower ends of the plurality of scrapers in between two consecutive scrapers of the plurality of scrapers. The pneumatic cylinder is double acting cylinder to effectuate reciprocating motion of the piston rod of the pneumatic cylinder. The pneumatic cylinder is aerated to direct the piston rod of the pneumatic cylinder in downward direction. The header is positioned below the pneumatic cylinder. The header is separated from the pneumatic cylinder with a distance piece. The header moves downward with the piston rod of the pneumatic cylinder. The one or more holding brackets are associated with a plurality of scraper holders. The one or more holding brackets comprises of holes at a pre-defined distance for attaching each of the plurality of scraper holders. The one or more holding brackets moves with the movement of the header. The plurality of scraper holders is associated with the one or more holding brackets. Each of the plurality of scrapers is attached to each of the plurality of scraper holders. The plurality of scrapers comprises of a round rod and an arm for scraping. The arm is attached at the lower end of the round rod. The plurality of scrapers moves with the movement of the one or more holding brackets. Scraping is performed by the plurality of scrapers at the time of contact with the one or more cathode plates uniformly. The plurality of scrapers comes in contact with the surface of the one or more cathode plates during the downward motion of the header.
[0004] In an embodiment of the present disclosure, the distance piece is secured between the header and the pneumatic cylinder for adjusting distance between the header and the pneumatic cylinder. The distance piece is welded or bolted between the header and the pneumatic cylinder.

[0005] In an embodiment of the present disclosure, the valve is secured beside the pneumatic cylinder. The valve is connected at the two opening of the pneumatic cylinder for controlling the flow of air inside the pneumatic cylinder. The valve is powered to control the flow of air inside the pneumatic cylinder.
[0006] In an embodiment of the present disclosure, the plurality of scraper holders fixed on the one or more holding brackets with one or more pins, wherein the plurality of scraper holders holds the plurality of scrapers at the position for the scraping from the one or more cathode plates.
[0007] In an embodiment of the present disclosure, the round rod of the plurality of scrapers is of the length not less than length of the one or more cathode plates.
[0008] In an embodiment of the present disclosure, the plurality of bus bars is used for securing the one or more cathode plates for the scraping of silver during the downward and upward motion of the plurality of scrapers.
[0009] In an embodiment of the present disclosure, the one or more cathode plates are attached manually to the plurality of bus bars.
[0010] In an embodiment of the present disclosure, the plurality of scrapers is made of fiber reinforced plastic.
[0011] In an embodiment of the present disclosure, the piston rod of the pneumatic cylinder reciprocates back in the upward direction after a pre-defined interval of time or the piston rod of the pneumatic cylinder reaches the other end inside the pneumatic cylinder. The piston rod of the pneumatic cylinder reciprocates back by aerating the pneumatic cylinder with the valve.

[0012] In an embodiment of the present disclosure, the scraping of silver from the one or more cathode plates performed by the plurality of scrapers uniformly in a single stroke
OBJECT OF THE DISCLOSURE
[0013] A Primary object of the present disclosure is to provide a method and system for mechanization of manual scraping of silver from one or more cathode plates.
[0014] Yet another object of the present disclosure is to reduce the time required for scraping the one or more cathode plates.
[0015] Yet another object of the present disclosure is to make a safer scraping process for one or more workers.
[0016] Yet another object of the present disclosure is to reduce the amount of electrolyte spillage.
[0017] Yet another object of the present disclosure is to increase the availability of silver powder.
[0018] Yet another object of the present disclosure is to improve the working condition of the one or more workers.
BRIEF DESCRIPTION OF THE FIGURES
[0019] Having thus described the invention in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:

[0020] FIG. 1 illustrates a system for mechanization of manual scraping of silver from one or more cathode plates, in accordance with various embodiments of the present disclosure.
[0021] It should be noted that the accompanying figures are intended to present illustrations of exemplary embodiments of the present disclosure. These figures are not intended to limit the scope of the present disclosure. It should also be noted that accompanying figures are not necessarily drawn to scale.
DETAILED DESCRIPTION
[0022] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present technology. It will be apparent, however, to one skilled in the art that the present technology can be practiced without these specific details. In other instances, structures and devices are shown in block diagram form only in order to avoid obscuring the present technology.
[0023] Reference in this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present technology. The appearance of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Moreover, various features are described which may be exhibited by some embodiments and not by others. Similarly, various requirements are described which may be requirements for some embodiments but not for other embodiments.

[0024] Moreover, although the following description contains many specifics for the purposes of illustration, anyone skilled in the art will appreciate that many variations and/or alterations to said details are within the scope of the present technology. Similarly, although many of the features of the present technology are described in terms of each other, or in conjunction with each other, one skilled in the art will appreciate that many of these features can be provided independently of other features. Accordingly, this description of the present technology is set forth without any loss of generality to, and without imposing limitations upon, the present technology.
[0025] FIG. 1 illustrates a general overview of a system 100 for scraping of silver from cathode plates during electro-refining of silver, in accordance with various embodiments of the present disclosure. The system 100 is configured for the removal of loosely deposited silver metal which gets deposited on one or more cathode plates (116) after the process of electro-refining. Electro-refining is the process for refining of pure metal from the impure metal wherein extraction of pure metal is done by electrolysis. In general, electro-refining is the refining of a metal by electrolysis. The crude metal is used as the anode which goes into the solution and the pure metal is deposited upon the cathode.
[0026] Electrolysis is a technique by which metal ions are continuously getting deposited on the surface of cathode plates after passing Direct Current through anode plates. Electrolytic cell is used for electrolysis which drives chemical reaction through the application of electrical energy. In general, the electrolytic cell composes of one electrolyte and two electrodes. The ions in the electrolyte are attracted to an electrode with the opposite charge when the electrolytic cell is driven by electrical energy applied to the electrodes. The electrical energy of sufficient magnitude can produce a chemical reaction such that electrolytic cells decompose a normally stable

or inert chemical compound in the solution. In general, the impure metal gets collected as anode mud near anode and the pure metal gets deposited on the surface of cathode during the process of electrolysis. In general, the deposited pure metal on the surface of cathode needs to be scrapped in order to extract pure metal from the cathode.
[0027] In general, an electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. Electrode is a conductor that carries current, electrode may be cathode or anode. In general, negatively charged electrode is called cathode whereas positively charged electrode is called anode.
[0028] The system 100 includes a pneumatic cylinder 102, a distance piece 104, and a header 106. In addition, the system 100 includes one or more holding brackets 108, a plurality of scraper holders 110, a plurality of scrapers 112, a plurality of bus bars 114, and one or more cathode plates 116. The pneumatic cylinder 102 uses the power of compressed air to produce a force in a reciprocating linear motion. The pneumatic cylinder 102 used in the system 100 is a double acting cylinder which provides both extend and retract strokes in the pneumatic cylinder 102. The pneumatic cylinder 102 is a double acting cylinder which consists of two opening on both ends of the cylinder and a piston rod which is situated inside the pneumatic cylinder 102. The pneumatic cylinder 102 is filled with the compressed air and consists of the piston rod. The piston rod is a rod which moves inside the pneumatic cylinder 102 when the air inside the pneumatic cylinder 102 forces the piston rod to move in downward and upward direction. In an embodiment of the present disclosure, the pneumatic cylinder 102 may use the power of compressed air to produce a force in reciprocating motion.

[0029] A pressure of 4 bars to 6 bars is provided to the pneumatic cylinder 102 for the movement of the piston rod of the pneumatic cylinder 102. In another embodiment of the present disclosure, the pneumatic cylinder 102 may be provided with any other amount of pressure for making the movement of the piston rod of the pneumatic cylinder 102. The time required by the pneumatic cylinder 102 to make reciprocating motion of the piston rod of the pneumatic cylinder 102 is about 3 to 5 seconds. In an embodiment of the present disclosure, the time required by the pneumatic cylinder 102 may be changed based on the requirement of the system 100. In an embodiment of the present disclosure, the pneumatic cylinder 102 may be any cylinder which can provide reciprocating motion required by the system 100.
[0030] The pneumatic cylinder 102 is positioned in the inverted direction with respect to the piston rod of the pneumatic cylinder 102. The movement of the piston rod is in the downward and upward direction for the scraping of the silver because of which the pneumatic cylinder 102 is positioned in the inverted direction. In an embodiment of the present disclosure, the system includes a frame for holding the components for the scraping of silver. In another embodiment of the present disclosure, the frame is any structure which can be used for holding all the components used for scraping the silver. In yet another embodiment of the present disclosure, the frame is made of metal, iron, alloy and the like. In yet another embodiment of the present disclosure, the frame is of any other material which can hold all the components used for scraping of silver. In yet another embodiment of the present disclosure, the pneumatic cylinder 102 is positioned above the horizontal axis with respect to the frame. The pneumatic cylinder 102 works when a valve allows the flow of air from first opening of the pneumatic cylinder 102. The piston rod of the pneumatic cylinder 102 moves downward with the first opening of the pneumatic cylinder 102.

[0031] In an embodiment of the present disclosure, the valve is used for controlling the flow of gas in the pneumatic cylinder 102. The valve is secured to the pneumatic cylinder 102. The valve is connected at the two opening of the pneumatic cylinder 102 for controlling the flow of air inside the pneumatic cylinder 102. In general, the valve is an electromechamcally operated valve used for controlling flow of liquid or gas. The valve is powered by an electric current through a coil. When electric current passes through the valve, the coil is energized and a magnetic field is created. The magnetic field causes the piston inside the coil to move and control the flow of air by opening and closing the valve. The valve provides benefit such as fast and safe switching, low power consumption and long service life. In an embodiment of the present disclosure, the valve may be any other valve which can provide reciprocating motion of the piston of the pneumatic cylinder 102.
[0032] In addition, the pneumatic cylinder 102 opens the flow of air for the first opening of the pneumatic cylinder 102 which moves the piston rod of the pneumatic cylinder 102 in downward direction. Further, the valve opens the flow of air for the second opening which moves the piston rod back to its initial position in the upward direction after a pre-defined interval of time. The pneumatic cylinder 102 is attached to the distance piece 104. The piston rod of the pneumatic cylinder 102 is attached with the header 106.
[0033] In an example, the pneumatic cylinder 102 is positioned in the inverted direction. The first opening is the opening at the top of the pneumatic cylinder 102 and second opening is below the first opening at the bottom of the pneumatic cylinder 102 in the inverted direction. The current passes though the valve which opens the flow of air from the first opening which moves the piston rod of the pneumatic cylinder 102 in the downward directions. When the piston rod of the pneumatic cylinder 102 reaches the other end of the pneumatic cylinder 102 or pre-defined interval of time has been reached, the valve changes the flow of air. The flow of air

changes from the first opening to the second opening making the piston rod of the pneumatic cylinder 102 to move back to its initial position.
[0034] In addition, the system 100 includes the distance piece 104. The distance piece 104 adjusts the distance between the pneumatic cylinder 102 and the header 106. The distance piece 104 is made of metal and the like. In an embodiment of the present disclosure, the distance piece 104 is made of any other material. The distance piece 104 is welded or bolted between the pneumatic cylinder 102 and the header 106. In an embodiment of the present disclosure, the distance piece 104 may be secured by any other method suitable for making the distance between the pneumatic cylinder 102 and the header 106. In an embodiment of the present disclosure, the length of the distance piece 104 is of fixed size or adjustable size which depends on the distance that needs to be maintained between the pneumatic cylinder 102 and the header 106.
[0035] Further, the system 100 includes the header 106. The header 106 holds the entire arrangement of the one or more holding brackets 108 and the plurality of scrapers 112. The header 106 moves with the reciprocating motion of the piston rod of the pneumatic cylinder 102. The header 106 is a square bar made up of stainless steel with the dimension of 50mm x50 mm. In an embodiment of the present disclosure, the header 106 is of any other dimension based on the requirement of the system. In another embodiment of the present disclosure, the header 106 is made of metal, iron and the like. In another embodiment of the present disclosure, the header 106 is of any other material based on the requirement of the system. The header 106 moves in the downward direction when the piston rod of the pneumatic cylinder 102 moves in the downward direction. The header 106 moves upward back to the initial position when the piston rod of the pneumatic cylinder 102 moves in the upward

direction after specified interval of time. Further, the one or more holding brackets 108 are fixed on the header 106.
[0036] Furthermore, the system 100 includes the one or more holding brackets 108. The one or more holding brackets 108 are fixed on to the header 106 with help of bolt with nut. The bolt used for fixing the one or more holding brackets 108 with the header 106 is of M16xl00 mm size. In an embodiment of the present disclosure, the bolt with nut is of any other dimension based on the requirement of the system 100. In another embodiment of the present disclosure, the one or more holding brackets 108 are welded or bolted on to the header 106. The one or more holding brackets 108 are made up of stainless steel. In an embodiment of the present disclosure, the one or more holding brackets 108 are made of metal, iron and the like. The one or more holding brackets 108 makes a reciprocating motion in the upward and downward direction based the reciprocating motion of the header 106. The one or more holding brackets 108 moves downwards during the downward motion of the header 106 and moves upward during the upward motion of the header 106. The one or more holding brackets 108 include the plurality of scraper holders 110. The one or more holding brackets 108 consist of one or more holes at a pre-defined distance. The size of the one or more holes depends on the size of the plurality of scraper holders 110 which are attached on the one or more holding brackets 108. In an embodiment of the present disclosure, the one or more holes on the one or more holding brackets 108 may be of any size based on the requirement of the system 100. The one or more holes are used to fix the plurality of scraper holders 110 using one or more pins on the one or more holding brackets 108. In an embodiment of the present disclosure, the one or more holding brackets 108 may consist of one or more clips or any other element which can be used for fixing the plurality of scrapers holders 110. In an embodiment of the present disclosure, the one or more pins are made of stainless

steel, steel, alloy and the like. In an embodiment of the present disclosure, the size of the one or more pins is based on the requirement of the system 100.
[0037] Moreover, the system 100 includes the plurality of scraper holders 110 for holding the plurality of scrapers 112. The plurality of scraper holders 110 is a stainless steel hollow pipe having an inside diameter of 12 mm to hold the plurality of scrapers 112. In an embodiment of the present disclosure, the plurality of scraper holders 110 is of any other dimension based on the requirement of the system 100. In another embodiment of the present disclosure, the plurality of scraper holders 110 is made of any other material based on the requirement of the system 100. The plurality of scraper holders 110 is fixed on the one or more holding brackets 108 with the one or more pins. The plurality of scraper holders 110 is used for attaching the plurality of scrapers 112 which moves with the movement of the header 106.
[0038] Also, the system 100 includes the plurality of scrapers 112. The plurality of scrapers 112 is fixed on the plurality of scraper holders 110. Each of the plurality of scrapers 112 is attached to each one of the plurality of scraper holders 110 to cover each side of one or more cathode plates 116. In an embodiment of the present disclosure, the plurality of scrapers 112 is structurally made of a round rod and an arm for scraping. The round rod is attached to the plurality of scraper holders 110 using the one or more pins. The round rod is 10 mm in diameter and 600mm in length. In another embodiment of the present disclosure, the round rod is of the length which is not less than the length of the one or more cathode plates 116. In another embodiment of the present disclosure, the round rod is of any other diameter based on the requirement of the system 100. The arm is attached at the lower end of the round rod at an angle which depends on the requirement of the system 100. In an embodiment of the present disclosure, the arm of the plurality of scrapers 112 is made of 660mm at the place of contact with the one or more cathode plates 116 and 640mm

at the place of contact with the lower end of the round rod. The thickness of the arm of the plurality of scrapers 112 is of 3mm. In an embodiment of the present disclosure, the arm is of any other dimensions based on the requirement of the system 100. In another embodiment of the present disclosure, the thickness is of any other dimension based on the requirement of the system 100.
[0039] The arm of the plurality of scrapers 112 is made of non-metallic material such as Fiber-reinforced plastic (FRP), and the like. The non-metallic material is used so that the there is no ions deposited on the arm of the plurality of scrapers 112. In an embodiment of the present disclosure, the plurality of scrapers 112 is made of polyethylene, polypropylene, plastic and the like. In another embodiment of the present disclosure, the plurality of scrapers 112 is made of any other material based on the requirement of the system 100. In another embodiment of the present disclosure, the plurality of scrapers 112 is made of any other material with any other dimension based on the requirement of the system 100. In another embodiment of the present disclosure, the plurality of scrapers 112 is made of different shape based on the requirement of the system 100. The plurality of scrapers 112 moves with the movement of the one or more holding brackets 108. The arm of the plurality of scrapers 112 is positioned such that the surface of the one or more cathode plates 116 comes in contact the plurality of scrapers 112 at the time of reciprocating motion of the one or more holding brackets 108 with the header 106. The plurality of scrapers 112 is placed in pair of two scrapers for making both sides scraping of the silver from the one or more cathode plates 116. The plurality of scrapers 112 is fixed manually on the plurality of scraper holders 110. In an embodiment of the present disclosure, the plurality of scrapers 112 is attached mechanically with the help of a machine. The one or more scraper 112 moves downwards when the header 106 moves downward and moves upward when the header 106 moves to an initial position during the reciprocating motion.

[0040] Also, the system 100 includes the one or more cathode plates 116 which are negatively charged electrode having loosely deposited silver on the surface of the one or more cathode plates 116 which gets deposited during the electro-refining of silver (Ag). In an embodiment of the present disclosure, the one or more cathode plates 116 5 are 600 mm in width and 430 mm in length. In another embodiment of the present disclosure, the one or more cathode plates 116 may have any other dimensions.
[0041] The one or more cathode plates 116 are attached to the plurality of bus bars 114. The plurality of bus bars 114 is used for attaching the one or more cathode
10 plates 116. The each of the one or more cathode plates 116 is attached in between a pair of the plurality of scrapers 112. The one or more cathode plates 116 are attached below the plurality of scrapers 112 on the plurality of bus bars 114. The plurality of bus bars 114 is used for the attaching the one or more cathode plates 116 using the blot with nut. In an embodiment of the present disclosure, the one or more cathode
15 plates 116 are attached using the one or more pins and the like. The scraping is performed when the one or more cathode plates 116 comes in contact with the plurality of scrapers 112 during downward motion of the header 106 which makes the one or more cathode plates 116 to move downwards. During the downward motion of the one or more cathode plates 116 the deposited silver gets removed from the
20 surface of the one or more cathode plates 116. In another embodiment of the present disclosure, the plurality of scrapers 112 is moving in the reciprocating manner such that the scraping of the one or more cathode plates 116 is performed uniformly in a single stroke.
25 [0042] In an example, the system 100 performs scraping of the silver from the one or more cathode plates 116 as discussed below. Firstly, the plurality of scrapers 112 is attached to the plurality of scraper holders 110 which are fixed on the one or more holding brackets 108. The one or more cathode plates 116 are attached below the plurality of scrapers 112 using the plurality of bus bars 114.
15

[0043] Further, the valve is powered by an electric current. When the electric current passes through the valve, the coil is energized and a magnetic field is created which causes the rod inside the coil to move and control the valve. The valve allows the 5 flow of air from the first opening of the pneumatic cylinder 102 which moves the piston rod of the pneumatic cylinder 102 in the downward direction. Furthermore, the movement of the piston rod shifts the header 106 in the downward direction when the piston rod of the pneumatic cylinder 102 moves in downward direction. The downward movement of the header 106 moves the plurality of scrapers 112 to move
10 downward which makes the contact between edge of the one or more cathode plate 112 and the arm of the plurality of scrapers 112 such that the scraping of the silver is performed. Moreover, when the header 106 has reached at the lowest point or a pre-defined interval of time has been reached, the valve gets triggered. The triggering is done in order to make the flow of air from the second opening of the pneumatic
15 cylinder 102 which changes the flow of air in the pneumatic cylinder 102. The flow of air in the pneumatic cylinder 102 moves the piston rod back in the upward direction to the initial position such that the scraping is performed on the one or more cathode plates 116. The scraping of the silver is performed uniformly in a single stroke. In an embodiment of the present disclosure, the system 100 may be used for
20 scraping of any loose material from the surface of the one or more cathode plates 116.
[0044] In an embodiment of the present disclosure, the system 100 includes a self-locking feature such that the pneumatic cylinder 102 stops during power failure. In an example, during the scraping of the silver from the one or more cathode plates 25 116, if there is a power failure, than self-locking is initiated and the system stops working.
[0045] In another embodiment of the present disclosure, the system 100 works on timer basis. In an example, the system 100 is established with the one or more
16

cathode plates 116 and the timer is attached to the system which has a pre-defined interval of time. The system 100 performs scraping of the one or more cathode plates 116 in the specified interval of time. Further, the timer may ring an alarm to notify that the one or more cathode plates 116 are scrapped. 5
[0046] The present disclosure provides a solution for mechanizing the entire process of scraping of the silver from the one or more cathode plates 116 instead of manual scraping. In addition, the system 100 reduces the time required for the scraping of the silver from the one or more cathode plates 116 in a single stroke with uniform 10 scraping. Further, the system 100 eliminates the direct exposure of the fumes to the one or more workers which improves the working conditions for the one or more workers.
[0047] While several possible embodiments of the invention have been described 15 above and illustrated in some cases, it should be interpreted and understood as to have been presented only by way of illustration and example, but not by limitation. Thus, the breadth and scope of a preferred embodiment should not be limited by any of the above-described exemplary embodiments.
20 [0048] The foregoing descriptions of specific embodiments of the present technology have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present technology to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best
25 explain the principles of the present technology and its practical application, to thereby enable others skilled in the art to best utilize the present technology and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omissions and substitutions of equivalents
17

are contemplated as circumstance may suggest or render expedient, but such are intended to cover the application or implementation without departing from the spirit or scope of the claims of the present technology.

claimed

1.A system for scraping of silver from cathode plates during electro-refining of silver, the system comprising:
a pneumatic cylinder (102) secured to a valve and positioned in an inverted direction with respect to movement of a piston rod of the pneumatic cylinder (102), wherein the pneumatic cylinder (102) is double acting cylinder to effectuate reciprocating motion of the piston rod of the pneumatic cylinder (102), wherein the pneumatic cylinder (102) is aerated to direct the piston rod of the pneumatic cylinder (102) in downward direction;
a header (106) attached to the piston rod of the pneumatic cylinder (102), wherein the header (106) is positioned below the pneumatic cylinder (102), wherein the header (106) is separated from the pneumatic cylinder (102) with a distance piece (104) and wherein the header (106) moves downward with the piston rod of the pneumatic cylinder (102);
one or more holding brackets (108) fixed on the header (106), wherein the one or more holding brackets (108) are associated with a plurality of scraper holders (110), wherein the one or more holding brackets (108) move with the movement of the header (106);
a plurality of scrapers (112) secured to the plurality of scraper holders (110), wherein the plurality of scraper holders (110) is associated with the one or more holding brackets (108), wherein each of the plurality of scrapers (112) is attached to each of the plurality of scraper holders (110), wherein the plurality of scrapers (112) moves with the movement of the one or more holding brackets (108); and

one or more cathode plates (116) secured on a plurality of bus bars (114) at a lower end of the plurality of scrapers (112) in between two consecutive scrapers of the plurality of scrapers (112), wherein scraping is performed by the plurality of scrapers (112) at the time of contact with the one or more cathode plates (116) uniformly, wherein the plurality of scrapers (112) comes in contact with the surface of the one or more cathode plates (116) during the downward motion of the header (106).

2. The system as recited in claim 1, wherein the distance piece (104) is secured between the header (106) and the pneumatic cylinder (102) for adjusting distance between the header (106) and the pneumatic cylinder (102), wherein the distance piece (104) is welded or bolted between the header (106) and the pneumatic cylinder (102).

3. The system as recited in claim 1, wherein the plurality of scrapers (112) comprises of a round rod and an arm for scrapping, wherein the arm is attached at the lower end of the round rod.

4. The system as recited in claim 1, wherein the valve is secured to the pneumatic cylinder (102), wherein the valve is connected at the two opening of the pneumatic cylinder (102) for controlling the flow of air inside the pneumatic cylinder (102), wherein the valve is powered to control the flow of air inside the pneumatic cylinder (102).

5. The system as recited in claim 1, wherein the plurality of scraper holders (110) fixed on the one or more holding brackets (108) with one or more pins, wherein the plurality of scraper holders (110) holds the plurality of scrapers (112) at the position for the scraping from the one or more cathode plates (116).

6. The system as recited in claim 1, wherein the round rod of the plurality of scrapers (112) is of the length which is not less than length of the one or more cathode plates (116),

7. The system as recited in claim 1, wherein the plurality of bus bars (114 )is used for securing the one or more cathode plates (116) for the scraping of silver during the downward and upward motion of the plurality of scrapers (112).

8. The system as recited in claim 1, wherein the one or more cathode plates (116) are attached manually to the plurality of bus bars (114).

9. The system as recited in claim 1, wherein the plurality of scrapers (112) is made of fiber reinforced plastic.

10. The system as recited in claim 1, wherein the piston rod of the pneumatic cylinder (102) reciprocates back in the upward direction after a pre-defined interval of time or the piston rod of the pneumatic cylinder (102) reaches the other end inside the pneumatic cylinder (102), wherein the piston rod of the pneumatic cylinder (102) reciprocates back by aerating the pneumatic cylinder (102) with the valve.
, Description:SYSTEM FOR SCRAPING OF SILVER FROM CATHODE PLATES

TECHNICAL FIELD
[0001] The present invention relates to the field of electro-refining. More specifically, the present disclosure relates to a system for scraping of silver from cathode plate.

BACKGROUND
[0002] Electro-refining is the process for refining of pure metal from the impure metal wherein extraction of pure metal is done by electrolysis. In general, electro-refining is the refining of a metal by electrolysis. The crude metal is used as the anode which goes into the solution and the pure metal is deposited upon the cathode. Electrolysis is a technique by which metal ions are continuously getting deposited on the surface of cathode plates after passing Direct Current through anode plates. The pure metal which gets deposited on the surface of cathode plate is scrapped by workers manually by specific tools. The manual scraping is required to be carried out by the workers after every electro-refining process in order to extract silver from the cathode plates. The manual scraping consumes time and the workers are exposed to hazardous fumes during the manual scraping. In order to reduce the time required for scraping of pure metal from the cathode plate and improve the working condition of the workers, there is a need for a new system which overcomes the above-stated disadvantages.

SUMMARY
[0003] In an aspect, the present disclosure provides a system for scraping of silver from cathode plates during electro-refining of silver. The system includes a pneumatic cylinder secured to a valve and positioned in the inverted direction with respect to movement of a piston rod of the pneumatic cylinder. In addition, the system includes a header attached with the piston rod of the pneumatic cylinder. Further, the system includes one or more holding brackets fixed on the header. Moreover, the system includes a plurality of scrapers secured to a plurality of scraper holders. Also, the system includes one or more cathode plates secured on a plurality of bus bars at the lower ends of the plurality of scrapers in between two consecutive scrapers of the plurality of scrapers. The pneumatic cylinder is double acting cylinder to effectuate reciprocating motion of the piston rod of the pneumatic cylinder. The pneumatic cylinder is aerated to direct the piston rod of the pneumatic cylinder in downward direction. The header is positioned below the pneumatic cylinder. The header is separated from the pneumatic cylinder with a distance piece. The header moves downward with the piston rod of the pneumatic cylinder. The one or more holding brackets are associated with a plurality of scraper holders. The one or more holding brackets comprises of holes at a pre-defined distance for attaching each of the plurality of scraper holders. The one or more holding brackets moves with the movement of the header. The plurality of scraper holders is associated with the one or more holding brackets. Each of the plurality of scrapers is attached to each of the plurality of scraper holders. The plurality of scrapers comprises of a round rod and an arm for scraping. The arm is attached at the lower end of the round rod. The plurality of scrapers moves with the movement of the one or more holding brackets. Scraping is performed by the plurality of scrapers at the time of contact with the one or more cathode plates uniformly. The plurality of scrapers comes in contact with the surface of the one or more cathode plates during the downward motion of the header.

[0004] In an embodiment of the present disclosure, the distance piece is secured between the header and the pneumatic cylinder for adjusting distance between the header and the pneumatic cylinder. The distance piece is welded or bolted between the header and the pneumatic cylinder.

[0005] In an embodiment of the present disclosure, the valve is secured beside the pneumatic cylinder. The valve is connected at the two opening of the pneumatic cylinder for controlling the flow of air inside the pneumatic cylinder. The valve is powered to control the flow of air inside the pneumatic cylinder.

[0006] In an embodiment of the present disclosure, the plurality of scraper holders fixed on the one or more holding brackets with one or more pins, wherein the plurality of scraper holders holds the plurality of scrapers at the position for the scraping from the one or more cathode plates.

[0007] In an embodiment of the present disclosure, the round rod of the plurality of scrapers is of the length not less than length of the one or more cathode plates.

[0008] In an embodiment of the present disclosure, the plurality of bus bars is used for securing the one or more cathode plates for the scraping of silver during the downward and upward motion of the plurality of scrapers.

[0009] In an embodiment of the present disclosure, the one or more cathode plates are attached manually to the plurality of bus bars.

[0010] In an embodiment of the present disclosure, the plurality of scrapers is made of fiber reinforced plastic.

[0011] In an embodiment of the present disclosure, the piston rod of the pneumatic cylinder reciprocates back in the upward direction after a pre-defined interval of time or the piston rod of the pneumatic cylinder reaches the other end inside the pneumatic cylinder. The piston rod of the pneumatic cylinder reciprocates back by aerating the pneumatic cylinder with the valve.

[0012] In an embodiment of the present disclosure, the scraping of silver from the one or more cathode plates performed by the plurality of scrapers uniformly in a single stroke

OBJECT OF THE DISCLOSURE
[0013] A Primary object of the present disclosure is to provide a method and system for mechanization of manual scraping of silver from one or more cathode plates.

[0014] Yet another object of the present disclosure is to reduce the time required for scraping the one or more cathode plates.

[0015] Yet another object of the present disclosure is to make a safer scraping process for one or more workers.

[0016] Yet another object of the present disclosure is to reduce the amount of electrolyte spillage.

[0017] Yet another object of the present disclosure is to increase the availability of silver powder.

[0018] Yet another object of the present disclosure is to improve the working condition of the one or more workers.

BRIEF DESCRIPTION OF THE FIGURES
[0019] Having thus described the invention in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:

[0020] FIG. 1 illustrates a system for mechanization of manual scraping of silver from one or more cathode plates, in accordance with various embodiments of the present disclosure.

[0021] It should be noted that the accompanying figures are intended to present illustrations of exemplary embodiments of the present disclosure. These figures are not intended to limit the scope of the present disclosure. It should also be noted that accompanying figures are not necessarily drawn to scale.

DETAILED DESCRIPTION
[0022] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present technology. It will be apparent, however, to one skilled in the art that the present technology can be practiced without these specific details. In other instances, structures and devices are shown in block diagram form only in order to avoid obscuring the present technology.

[0023] Reference in this specification to “one embodiment” or “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present technology. The appearance of the phrase “in one embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Moreover, various features are described which may be exhibited by some embodiments and not by others. Similarly, various requirements are described which may be requirements for some embodiments but not for other embodiments.

[0024] Moreover, although the following description contains many specifics for the purposes of illustration, anyone skilled in the art will appreciate that many variations and/or alterations to said details are within the scope of the present technology. Similarly, although many of the features of the present technology are described in terms of each other, or in conjunction with each other, one skilled in the art will appreciate that many of these features can be provided independently of other features. Accordingly, this description of the present technology is set forth without any loss of generality to, and without imposing limitations upon, the present technology.

[0025] FIG. 1 illustrates a general overview of a system 100 for scraping of silver from cathode plates during electro-refining of silver, in accordance with various embodiments of the present disclosure. The system 100 is configured for the removal of loosely deposited silver metal which gets deposited on one or more cathode plates (116) after the process of electro-refining. Electro-refining is the process for refining of pure metal from the impure metal wherein extraction of pure metal is done by electrolysis. In general, electro-refining is the refining of a metal by electrolysis. The crude metal is used as the anode which goes into the solution and the pure metal is deposited upon the cathode.

[0026] Electrolysis is a technique by which metal ions are continuously getting deposited on the surface of cathode plates after passing Direct Current through anode plates. Electrolytic cell is used for electrolysis which drives chemical reaction through the application of electrical energy. In general, the electrolytic cell composes of one electrolyte and two electrodes. The ions in the electrolyte are attracted to an electrode with the opposite charge when the electrolytic cell is driven by electrical energy applied to the electrodes. The electrical energy of sufficient magnitude can produce a chemical reaction such that electrolytic cells decompose a normally stable or inert chemical compound in the solution. In general, the impure metal gets collected as anode mud near anode and the pure metal gets deposited on the surface of cathode during the process of electrolysis. In general, the deposited pure metal on the surface of cathode needs to be scrapped in order to extract pure metal from the cathode.

[0027] In general, an electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. Electrode is a conductor that carries current, electrode may be cathode or anode. In general, negatively charged electrode is called cathode whereas positively charged electrode is called anode.

[0028] The system 100 includes a pneumatic cylinder 102, a distance piece 104, and a header 106. In addition, the system 100 includes one or more holding brackets 108, a plurality of scraper holders 110, a plurality of scrapers 112, a plurality of bus bars 114, and one or more cathode plates 116. The pneumatic cylinder 102 uses the power of compressed air to produce a force in a reciprocating linear motion. The pneumatic cylinder 102 used in the system 100 is a double acting cylinder which provides both extend and retract strokes in the pneumatic cylinder 102. The pneumatic cylinder 102 is a double acting cylinder which consists of two opening on both ends of the cylinder and a piston rod which is situated inside the pneumatic cylinder 102. The pneumatic cylinder 102 is filled with the compressed air and consists of the piston rod. The piston rod is a rod which moves inside the pneumatic cylinder 102 when the air inside the pneumatic cylinder 102 forces the piston rod to move in downward and upward direction. In an embodiment of the present disclosure, the pneumatic cylinder 102 may use the power of compressed air to produce a force in reciprocating motion.

[0029] A pressure of 4 bars to 6 bars is provided to the pneumatic cylinder 102 for the movement of the piston rod of the pneumatic cylinder 102. In another embodiment of the present disclosure, the pneumatic cylinder 102 may be provided with any other amount of pressure for making the movement of the piston rod of the pneumatic cylinder 102. The time required by the pneumatic cylinder 102 to make reciprocating motion of the piston rod of the pneumatic cylinder 102 is about 3 to 5 seconds. In an embodiment of the present disclosure, the time required by the pneumatic cylinder 102 may be changed based on the requirement of the system 100. In an embodiment of the present disclosure, the pneumatic cylinder 102 may be any cylinder which can provide reciprocating motion required by the system 100.

[0030] The pneumatic cylinder 102 is positioned in the inverted direction with respect to the piston rod of the pneumatic cylinder 102. The movement of the piston rod is in the downward and upward direction for the scraping of the silver because of which the pneumatic cylinder 102 is positioned in the inverted direction. In an embodiment of the present disclosure, the system includes a frame for holding the components for the scraping of silver. In another embodiment of the present disclosure, the frame is any structure which can be used for holding all the components used for scraping the silver. In yet another embodiment of the present disclosure, the frame is made of metal, iron, alloy and the like. In yet another embodiment of the present disclosure, the frame is of any other material which can hold all the components used for scraping of silver. In yet another embodiment of the present disclosure, the pneumatic cylinder 102 is positioned above the horizontal axis with respect to the frame. The pneumatic cylinder 102 works when a valve allows the flow of air from first opening of the pneumatic cylinder 102. The piston rod of the pneumatic cylinder 102 moves downward with the first opening of the pneumatic cylinder 102.

[0031] In an embodiment of the present disclosure, the valve is used for controlling the flow of gas in the pneumatic cylinder 102. The valve is secured to the pneumatic cylinder 102. The valve is connected at the two opening of the pneumatic cylinder 102 for controlling the flow of air inside the pneumatic cylinder 102. In general, the valve is an electromechanically operated valve used for controlling flow of liquid or gas. The valve is powered by an electric current through a coil. When electric current passes through the valve, the coil is energized and a magnetic field is created. The magnetic field causes the piston inside the coil to move and control the flow of air by opening and closing the valve. The valve provides benefit such as fast and safe switching, low power consumption and long service life. In an embodiment of the present disclosure, the valve may be any other valve which can provide reciprocating motion of the piston of the pneumatic cylinder 102.

[0032] In addition, the pneumatic cylinder 102 opens the flow of air for the first opening of the pneumatic cylinder 102 which moves the piston rod of the pneumatic cylinder 102 in downward direction. Further, the valve opens the flow of air for the second opening which moves the piston rod back to its initial position in the upward direction after a pre-defined interval of time. The pneumatic cylinder 102 is attached to the distance piece 104. The piston rod of the pneumatic cylinder 102 is attached with the header 106.

[0033] In an example, the pneumatic cylinder 102 is positioned in the inverted direction. The first opening is the opening at the top of the pneumatic cylinder 102 and second opening is below the first opening at the bottom of the pneumatic cylinder 102 in the inverted direction. The current passes though the valve which opens the flow of air from the first opening which moves the piston rod of the pneumatic cylinder 102 in the downward directions. When the piston rod of the pneumatic cylinder 102 reaches the other end of the pneumatic cylinder 102 or pre-defined interval of time has been reached, the valve changes the flow of air. The flow of air changes from the first opening to the second opening making the piston rod of the pneumatic cylinder 102 to move back to its initial position.

[0034] In addition, the system 100 includes the distance piece 104. The distance piece 104 adjusts the distance between the pneumatic cylinder 102 and the header 106. The distance piece 104 is made of metal and the like. In an embodiment of the present disclosure, the distance piece 104 is made of any other material. The distance piece 104 is welded or bolted between the pneumatic cylinder 102 and the header 106. In an embodiment of the present disclosure, the distance piece 104 may be secured by any other method suitable for making the distance between the pneumatic cylinder 102 and the header 106. In an embodiment of the present disclosure, the length of the distance piece 104 is of fixed size or adjustable size which depends on the distance that needs to be maintained between the pneumatic cylinder 102 and the header 106.

[0035] Further, the system 100 includes the header 106. The header 106 holds the entire arrangement of the one or more holding brackets 108 and the plurality of scrapers 112. The header 106 moves with the reciprocating motion of the piston rod of the pneumatic cylinder 102. The header 106 is a square bar made up of stainless steel with the dimension of 50mm x50 mm. In an embodiment of the present disclosure, the header 106 is of any other dimension based on the requirement of the system. In another embodiment of the present disclosure, the header 106 is made of metal, iron and the like. In another embodiment of the present disclosure, the header 106 is of any other material based on the requirement of the system. The header 106 moves in the downward direction when the piston rod of the pneumatic cylinder 102 moves in the downward direction. The header 106 moves upward back to the initial position when the piston rod of the pneumatic cylinder 102 moves in the upward direction after specified interval of time. Further, the one or more holding brackets 108 are fixed on the header 106.

[0036] Furthermore, the system 100 includes the one or more holding brackets 108. The one or more holding brackets 108 are fixed on to the header 106 with help of bolt with nut. The bolt used for fixing the one or more holding brackets 108 with the header 106 is of M16x100 mm size. In an embodiment of the present disclosure, the bolt with nut is of any other dimension based on the requirement of the system 100. In another embodiment of the present disclosure, the one or more holding brackets 108 are welded or bolted on to the header 106. The one or more holding brackets 108 are made up of stainless steel. In an embodiment of the present disclosure, the one or more holding brackets 108 are made of metal, iron and the like. The one or more holding brackets 108 makes a reciprocating motion in the upward and downward direction based the reciprocating motion of the header 106. The one or more holding brackets 108 moves downwards during the downward motion of the header 106 and moves upward during the upward motion of the header 106. The one or more holding brackets 108 include the plurality of scraper holders 110. The one or more holding brackets 108 consist of one or more holes at a pre-defined distance. The size of the one or more holes depends on the size of the plurality of scraper holders 110 which are attached on the one or more holding brackets 108. In an embodiment of the present disclosure, the one or more holes on the one or more holding brackets 108 may be of any size based on the requirement of the system 100. The one or more holes are used to fix the plurality of scraper holders 110 using one or more pins on the one or more holding brackets 108. In an embodiment of the present disclosure, the one or more holding brackets 108 may consist of one or more clips or any other element which can be used for fixing the plurality of scrapers holders 110. In an embodiment of the present disclosure, the one or more pins are made of stainless steel, steel, alloy and the like. In an embodiment of the present disclosure, the size of the one or more pins is based on the requirement of the system 100.

[0037] Moreover, the system 100 includes the plurality of scraper holders 110 for holding the plurality of scrapers 112. The plurality of scraper holders 110 is a stainless steel hollow pipe having an inside diameter of 12 mm to hold the plurality of scrapers 112. In an embodiment of the present disclosure, the plurality of scraper holders 110 is of any other dimension based on the requirement of the system 100. In another embodiment of the present disclosure, the plurality of scraper holders 110 is made of any other material based on the requirement of the system 100. The plurality of scraper holders 110 is fixed on the one or more holding brackets 108 with the one or more pins. The plurality of scraper holders 110 is used for attaching the plurality of scrapers 112 which moves with the movement of the header 106.

[0038] Also, the system 100 includes the plurality of scrapers 112. The plurality of scrapers 112 is fixed on the plurality of scraper holders 110. Each of the plurality of scrapers 112 is attached to each one of the plurality of scraper holders 110 to cover each side of one or more cathode plates 116. In an embodiment of the present disclosure, the plurality of scrapers 112 is structurally made of a round rod and an arm for scraping. The round rod is attached to the plurality of scraper holders 110 using the one or more pins. The round rod is 10 mm in diameter and 600mm in length. In another embodiment of the present disclosure, the round rod is of the length which is not less than the length of the one or more cathode plates 116. In another embodiment of the present disclosure, the round rod is of any other diameter based on the requirement of the system 100. The arm is attached at the lower end of the round rod at an angle which depends on the requirement of the system 100. In an embodiment of the present disclosure, the arm of the plurality of scrapers 112 is made of 660mm at the place of contact with the one or more cathode plates 116 and 640mm at the place of contact with the lower end of the round rod. The thickness of the arm of the plurality of scrapers 112 is of 3mm. In an embodiment of the present disclosure, the arm is of any other dimensions based on the requirement of the system 100. In another embodiment of the present disclosure, the thickness is of any other dimension based on the requirement of the system 100.

[0039] The arm of the plurality of scrapers 112 is made of non-metallic material such as Fiber-reinforced plastic (FRP), and the like. The non-metallic material is used so that the there is no ions deposited on the arm of the plurality of scrapers 112. In an embodiment of the present disclosure, the plurality of scrapers 112 is made of polyethylene, polypropylene, plastic and the like. In another embodiment of the present disclosure, the plurality of scrapers 112 is made of any other material based on the requirement of the system 100. In another embodiment of the present disclosure, the plurality of scrapers 112 is made of any other material with any other dimension based on the requirement of the system 100. In another embodiment of the present disclosure, the plurality of scrapers 112 is made of different shape based on the requirement of the system 100. The plurality of scrapers 112 moves with the movement of the one or more holding brackets 108. The arm of the plurality of scrapers 112 is positioned such that the surface of the one or more cathode plates 116 comes in contact the plurality of scrapers 112 at the time of reciprocating motion of the one or more holding brackets 108 with the header 106. The plurality of scrapers 112 is placed in pair of two scrapers for making both sides scraping of the silver from the one or more cathode plates 116. The plurality of scrapers 112 is fixed manually on the plurality of scraper holders 110. In an embodiment of the present disclosure, the plurality of scrapers 112 is attached mechanically with the help of a machine. The one or more scraper 112 moves downwards when the header 106 moves downward and moves upward when the header 106 moves to an initial position during the reciprocating motion.

[0040] Also, the system 100 includes the one or more cathode plates 116 which are negatively charged electrode having loosely deposited silver on the surface of the one or more cathode plates 116 which gets deposited during the electro-refining of silver (Ag). In an embodiment of the present disclosure, the one or more cathode plates 116 are 600 mm in width and 430 mm in length. In another embodiment of the present disclosure, the one or more cathode plates 116 may have any other dimensions.

[0041] The one or more cathode plates 116 are attached to the plurality of bus bars 114. The plurality of bus bars 114 is used for attaching the one or more cathode plates 116. The each of the one or more cathode plates 116 is attached in between a pair of the plurality of scrapers 112. The one or more cathode plates 116 are attached below the plurality of scrapers 112 on the plurality of bus bars 114. The plurality of bus bars 114 is used for the attaching the one or more cathode plates 116 using the blot with nut. In an embodiment of the present disclosure, the one or more cathode plates 116 are attached using the one or more pins and the like. The scraping is performed when the one or more cathode plates 116 comes in contact with the plurality of scrapers 112 during downward motion of the header 106 which makes the one or more cathode plates 116 to move downwards. During the downward motion of the one or more cathode plates 116 the deposited silver gets removed from the surface of the one or more cathode plates 116. In another embodiment of the present disclosure, the plurality of scrapers 112 is moving in the reciprocating manner such that the scraping of the one or more cathode plates 116 is performed uniformly in a single stroke.

[0042] In an example, the system 100 performs scraping of the silver from the one or more cathode plates 116 as discussed below. Firstly, the plurality of scrapers 112 is attached to the plurality of scraper holders 110 which are fixed on the one or more holding brackets 108. The one or more cathode plates 116 are attached below the plurality of scrapers 112 using the plurality of bus bars 114.

[0043] Further, the valve is powered by an electric current. When the electric current passes through the valve, the coil is energized and a magnetic field is created which causes the rod inside the coil to move and control the valve. The valve allows the flow of air from the first opening of the pneumatic cylinder 102 which moves the piston rod of the pneumatic cylinder 102 in the downward direction. Furthermore, the movement of the piston rod shifts the header 106 in the downward direction when the piston rod of the pneumatic cylinder 102 moves in downward direction. The downward movement of the header 106 moves the plurality of scrapers 112 to move downward which makes the contact between edge of the one or more cathode plate 112 and the arm of the plurality of scrapers 112 such that the scraping of the silver is performed. Moreover, when the header 106 has reached at the lowest point or a pre-defined interval of time has been reached, the valve gets triggered. The triggering is done in order to make the flow of air from the second opening of the pneumatic cylinder 102 which changes the flow of air in the pneumatic cylinder 102. The flow of air in the pneumatic cylinder 102 moves the piston rod back in the upward direction to the initial position such that the scraping is performed on the one or more cathode plates 116. The scraping of the silver is performed uniformly in a single stroke. In an embodiment of the present disclosure, the system 100 may be used for scraping of any loose material from the surface of the one or more cathode plates 116.

[0044] In an embodiment of the present disclosure, the system 100 includes a self-locking feature such that the pneumatic cylinder 102 stops during power failure. In an example, during the scraping of the silver from the one or more cathode plates 116, if there is a power failure, than self-locking is initiated and the system stops working.

[0045] In another embodiment of the present disclosure, the system 100 works on timer basis. In an example, the system 100 is established with the one or more cathode plates 116 and the timer is attached to the system which has a pre-defined interval of time. The system 100 performs scraping of the one or more cathode plates 116 in the specified interval of time. Further, the timer may ring an alarm to notify that the one or more cathode plates 116 are scrapped.

[0046] The present disclosure provides a solution for mechanizing the entire process of scraping of the silver from the one or more cathode plates 116 instead of manual scraping. In addition, the system 100 reduces the time required for the scraping of the silver from the one or more cathode plates 116 in a single stroke with uniform scraping. Further, the system 100 eliminates the direct exposure of the fumes to the one or more workers which improves the working conditions for the one or more workers.

[0047] While several possible embodiments of the invention have been described above and illustrated in some cases, it should be interpreted and understood as to have been presented only by way of illustration and example, but not by limitation. Thus, the breadth and scope of a preferred embodiment should not be limited by any of the above-described exemplary embodiments.

[0048] The foregoing descriptions of specific embodiments of the present technology have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the present technology to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the present technology and its practical application, to thereby enable others skilled in the art to best utilize the present technology and various embodiments with various modifications as are suited to the particular use contemplated. It is understood that various omissions and substitutions of equivalents are contemplated as circumstance may suggest or render expedient, but such are intended to cover the application or implementation without departing from the spirit or scope of the claims of the present technology.