Description:
FORM 2
THE PATENTS ACT, 1970
(39 OF 1970)
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See section 10; rule 13)

1. Title of the invention – A SINGLE SHAFT MIXER CONVEYOR

2. Applicant(s)

(a) NAME : PRECIFAB ENGINEERS
(b) NATIONALITY:INDIAN
(c) ADDRESS: Plot No: 31, Saket Industrial Estate, B/s: Alfa Entek Boilers, Changodar- Moraiya Service Road, Moraiya, Tal: Sanand, Dist: Ahmedabad-382210. Gujarat, INDIA.

3. PREAMBLE TO THE DESCRIPTION

The following specification particularly describes the invention and the manner in which it is to be performed.

A SINGLE SHAFT MIXER CONVEYOR

FIELD OF THE INVENTION

The present invention relates to a single shaft mixer conveyor. More particularly, it relates to a single shaft mixer with conveyor capable of mixing and conveying the material through a single machine at the same time.

BACKGROUND OF THE INVENTION

The concrete mixer is a device that homogeneously combines cement, aggregate such as sand or gravel, and water to form concrete. The typical concrete mixer uses a revolving drum to mix the components. For smaller volume works, portable concrete mixers are often used so that the concrete can be made at the construction site, giving the workers ample time to use the concrete before it hardens. An alternative to a machine is mixing concrete by hand.
In a known mixing and conveying device, in the upper air line and in the lower air line, which is branched off together from the pressure line of the compressor, a throttle designed as a valve is arranged for the correct distribution of the compressed air can be adjusted by hand. The compressor designed as a screw compressor is switched on and off via a shut-off valve arranged in the suction line. Since the device is frequently operated by untrained personnel, the throttles arranged in the upper air line and the lower air line are brought into a predetermined position and left in this position when the system is started up. At the beginning of a conveying process, the mixing tank filled with the material to be mixed and conveyed is closed pressure-tight and the compressor is opened by opening the shut-off valve in the Saugleitupg turned on. The engine speed is increased at the same time. In this position, the delivery pressure of about 4 to 5 bar gradually builds up in the boiler, especially via the upper air line.
However, this build-up of pressure is delayed by the fact that the compressed air supplied via the sub-air line can initially escape via the delivery line without conveying mixed material until the material is pressed into the delivery line via the boiler pressure and the injection air supplied via the sub-air line is used for conveying plugs. One consequence of this is a not inconsiderable extension of the delivery process and thus increased boiler wear and fuel consumption.
The concrete in transit in drums is disposed on mobile trucks which are adapted to mix large quantities of concrete at one time. This concrete, which may consist of several cubic yards of aggregate, sand, cement and water must be disposed of within a relatively short time after mixing. Otherwise, the cement might be set within the drum. This factor has produced considerable problems in the production of concrete in small amounts for a small job. In general, such an operation produces waste or shortage, it being extremely difficult to estimate a small quantity in a large drum.
DE2166509A1 document discloses a mixer plant supplies a concrete injection spreader. The screw conveyor is fully enclosed, and the housing ends are sealingly connected at one end to hte mixer casing and at the other one to a discharge slide valve housing, forming connection to dry cement receptacle. The automatic device provides proportioning of water, additives, and binders into the mixer. The casing of this device is sealingly coupled to the mixer casing.
Another WO1994007667A1 document discloses a pneumatic conveyor for thick materials, such as mortar or cement, has a mixing tank with a motor-driven mixing unit, a transport duct connected to the mixing tank next to its bottom, a lower air duct and an upper air duct which can both be charged with compressed air by means of a compressor. The upper air duct opens into the upper area of the tank, whereas the lower air duct opens at an injection spot into the transport duct. In order to make the apparatus easier to handle, to avoid operating errors and stoppers in the transport duct, and to reduce the actual transport time, the injection air supplied by the lower air duct is turned on only when a predetermined minimum resistance is ascertained in the transport duct, whereas the compressed air supply to the tank is blocked when a preset maximum resistance is reached in the transport duct.
One more document CN104890123B discloses a an automatic-feeding and uniform-discharging cement mixer with a conveying belt. The automatic-feeding and uniform-discharging cement mixer comprises a bottom sand-gravel tank, a conveying motor, a side protection plate, the conveying belt, transmission rollers, riding wheels and screw blades. A front mixing tank support and a rear mixing tank support are arranged on the right side of a base plate, the riding wheels are mounted on the front mixing tank support and the rear mixing tank support respectively, and a mixing tank is placed on the riding wheels. The left side of the mixing tank is provided with a feeding inlet, the right side of the mixing tank is provided with a discharging outlet, and a gear ring is arranged in the middle of the mixing tank.
One end of the side protection plate is fixed onto the bottom sand-gravel tank, and the other side of the side protection plate is arranged in the feeding inlet. Two transmission shafts are arranged on the side protection plate. The transmission rollers are arranged on the transmission shafts which are connected with the conveying motor. The conveying belt is mounted on the transmission rollers. The automatic-feeding and uniform-discharging cement mixer has the advantages that uniform discharging is achieved, cement waste is reduced, labor intensity of workers is relieved greatly, and the cement mixer formed by different modules is simple in structure and convenient to transport.
The problem associated with the prior art for cement plants was the cement plant team was not able to give water resistance cement daily basis. This was leading to productivity losses due to frequent changeovers as well as non-effective utilization also. Also, the cement plant was facing a severe issue of flushing of cement mill and reduction in TPH (Tons per hour capacity) during water resistance cement grinding.
To overcome the problem, inventors of the present invention came up with a new invention which is a single shaft mixer conveyor. The water resistance cement is developed with special performance-enhancing components, its superior water resistance quality enables it to act as a shield against water seepage. The single shaft mixer conveyor is save the additional silo, With silo manufacturing, silo types of machinery, silo production cost & silo maintenance cost saving, an improvement in cement mill TPH by reducing Water resistance cement production and special power consumption. (Approx. 40 TPH feed loss based on output in PPC cement production.) Reduce dust emission in cement mill mainly in Silo charging bucket elevator circuit. It saves Green products, saves the environment, saves power, saves machinery, saves a lot of maintenance costs, saving man powers and final savings of the production cost very low compared to the earlier machinery production.

OBJECT OF THE INVENTION

The principle object of the present invention is to overcome the drawbacks and limitations associated with prior technology by providing an improved single shaft mixer conveyor.

Another object of the present invention is to provide a single shaft mixer conveyor capable of mixing and conveying the mixer and providing the water-resistance cement.

Another object of the present invention is to provide an adjustable angle for varying the mixing and conveying of the material.

Another object of the present invention is to provide a gearbox that transmits the torque and motion in a single shaft.

Yet, another object of the present invention is to provide a single shaft mixer providing a silicon-based chemical liquid which entring with the atomizing chambers with cement into the casing area of the mixer.

Another object of the present invention is to provide a single shaft mixer that can reduce dust emission in cement, saving the environment, saving maintenance costs, and saving manpower.

SUMMARY OF THE INVENTION

This summary is provided to introduce a selection of concepts in a simplified form that is further disclosed in the detailed description of the invention. This summary is not intended to identify key or essential inventive concepts of the claimed subject matter, nor is it intended for determining the scope of the claimed subject matter.

The present invention is all about a single shaft mixer with a conveyor both in one single shaft.

The main aspect of the present invention is to provide a single shaft mixer conveyor comprising a motor being capable to provide the drive to a gearbox; said gearbox having a gears located on a main shaft; said gearbox attached with said motor which is transmit the torque and motion in said single shaft mixer conveyor; a coupling provided at the end of the gearbox with a coupling guards to protect said shaft; a bearing located on the shaft capable to rotate the shaft with less wear and tear; said bearing covered with a housing; a main body having housing inside it containing extended part of said main shaft towards the end of said main body; said main body covered from the top with a top cover; a material inlet provided at the top of the main body through which an additive mixture liquid enters into said main body; a plurality of inspection door located at the top of said main body to inspect the inside space of said single shaft mixture; a material outlet door located at the bottom end of said main body to remove the mixture; a plurality of cleaning door located at the bottom of said main body; a shaft guard provided at the end of said extended main shaft located outside of said main body; characterized in that, said main shaft having blades on the surface being capable to mix the cement mixture and convey said mixture at the same time with single shaft mixture conveyor.

As per another aspect of the present invention is to provide a single shaft mixer having convey screw spiral flight for material conveying operation through window holes.

As per another aspect of the present invention is to provide a single shaft mixer conveyor having pitched curve paddle blades being capable to mix and convey the mixer at the same time and provide the water resistance cement at the outlet door. The pitched curved paddle blades which are mounted on the diameter of curved flights are capable of mixing the chamber operation through the windows holes. The additive liquid can be selected from silicon base additive chemicals material.

As per another aspect of the present invention is to provide a single shaft mixer conveyor wherein the method to operate said single shaft mixture having the following steps: a.pouring the cement from the top of drive side of the top cover in said single shaft mixer conveyor; b.pouring the silicon base chemical liquid with the atomizing chambers with cement into casing area of the said single shaft mixture conveyor; c.mixing the material through pitched curved paddle blades in said shaft mixer conveyor; d.providing the water-resistance cement by pitched curved paddle blades; e.forwarding the mixed material of water resistance cement towards outlet door positions at the bottom side of the casing in said single shaft mixture conveyor.

BRIEF DESCRIPTION OF DRAWINGS

The foregoing summary, as well as the following detailed description of the invention, is better understood when read in conjunction with the appended drawings. To illustrate the invention, exemplary constructions of the invention are shown in the drawings. However, the invention is not limited to the specific methods and structures disclosed herein. The description of a method step or a structure referenced by a numeral in a drawing applies to the description of that method step or structure shown by that same numeral in any subsequent drawing herein.

Fig. 1 is a schematic presentation of a single shaft mixture conveyor.

Fig. 2 illustrates an embodiment of single shaft mixture with inspection door and cleaning door.

Fig.3 shown the single shaft mixture conveyor and embodiment which is cover from top side.

DETAILED DESCRIPTION OF INVENTION

The present invention overcomes the aforesaid drawbacks of the above, and other objects, features and advantages of the present invention will now be described in greater detail. Also, the following description includes various specific details and are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that: without departing from the scope and spirit of the present disclosure and its various embodiments there may be any number of changes and modifications described herein.

It must also be noted that as used herein and in the appended claims, the singular forms "a", "an," and "the" include plural references unless the context dictates otherwise. Although any systems and methods similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present invention, the preferred, systems and methods are now described.

The term “water resistance” cement is defined as concretes that are impermeable to water and other fluids either above or below ground. They are high-density concretes that incorporate fine particle cement replacements.

The single shaft mixer with conveyor (100) both in one single shaft mixture conveyor (100) for cement and additive liquid mixing with conveying both operations at a time. The single shaft mixture conveyor is synchronized and controlled with an additive dosing system for the manufacturing process of water-resistant cement having an automated additive liquid line and mixing the cement and silicon base additive chemicals material with the single shaft mixing with conveying to the output door.

The main embodiment of the present invention is to provide a single shaft mixer conveyor (100) comprising:
a motor (1) being capable to provide the drive to a gearbox (2);
said gearbox (2) having a gears located on a main shaft (7); said gearbox (2) attached to said motor (1) which transmits the torque and motion in said single shaft mixer conveyor;
a coupling (3) provided at the end of the gearbox (2) with a coupling (3) guards to protect said shaft;
a bearing located on the shaft capable to rotate the shaft with less wear and tear; said bearing covered with a housing;
a main body (9) having a housing (5) inside it containing an extended part of said main shaft (7) towards the end of said main body; said main body (9) covered from the top with a top cover (12);
a material inlet (6) provided at the top of the main body (9) through which an additive mixture liquid enters into said main body;
a plurality of inspection door (8) located at the top of said main body (9) to inspect the inside space of said single shaft mixture;
a material outlet door (10) located at the bottom end of said main body (9) to remove the mixture;
a plurality of cleaning door (11) located at the bottom of said main body;
a shaft guard (13) provided at the end of said extended main shaft (7) located outside of said main body;
characterized in that,
said main shaft (7) having blades on the surface being capable to mix the cement mixture and convey said mixture at the same time with single shaft mixture conveyor (100).

According to another embodiment of the present invention, the gearbox (2) is capable to increase the output torque or changing the speed of a motor. The shaft of the motor (1) is connected to one end of the gearbox (2) and through the internal configuration of gears of a gearbox (2), provides a given output torque and speed determined by the gear ratio. The torque and speed between a driving device like a motor (1) and a load. The gears are mounted main shaft (7) that are carried by roller bearings and rotate about them. The gearbox (2) is a mechanical method of transferring energy from one device to another and is used to increase the torque while reducing the speed at the same time.

According to another embodiment of the present invention, couplings (3) are capable to transmit torque. The coupling (3) consists of two flexible joints one fixed to the shaft which is connected by a spindle. The coupling (3) connects the drive motor (1) to the gearbox (2) in hoist mechanisms, but it can also connect the gearbox (2) directly to smaller wire rope drums using a flanged half. The couplings (3) transmit torque in said single shaft mixer conveyor (100).

According to one embodiment of the present invention is to provide a bearing located on the shaft capable to rotate the shaft with less wear and tear. The bearing is covered with housing. The main body (9) having the housing (5) inside it containing an extended part of said main shaft (7) towards the end of the said main body (9) and main body (9) covered from the top with a top cover.

According to one embodiment of the present invention is, the material inlet (6) provided at the top of the main body (9) through which an additive mixture of liquid enters into said main body. The water-resistant cement having an automated additive liquid line to mix the cement and silicon base additive chemicals material with the single shaft mixing with conveying to the output door and having a plurality of atomizing chambers.

According to one embodiment of the present invention, the inspection door (8) is located at the top of the main body (9) to inspect the inside space of a single shaft mixture. The material outlet door (10) is located at the bottom end of said main body (9) to remove the mixture and the cleaning door (11) is located at the bottom of the main body (9).

According to one embodiment, the shaft guard (13) is provided at the end of the extended main shaft (7) located outside of said main body. The shaft guards (13) protect workers from exposed pinch-points around rotating equipment.

As per one embodiment of the present invention, the main shaft (7) having blades on the surface being capable to mix the cement mixture and convey said mixture (100) at the same time with a single shaft mixture conveyor (100). The single shaft mixer conveyor (100) is used for continuous operation of production for water resistance cement is having a long shaft with functional spiral rows on a single shaft. The pitched curved paddle blades mounted on the diameter of curved flights (for mixing chamber operation) having through windows holes and the convey screw spiral flights (for material conveying operation) having through window holes.

As per one embodiment of the present invention is to provide a single shaft mixer having pitched curve paddle blades being capable to mix and convey the mixer at the same time and provide the water resistance cement at the outlet door (10).

Accoding to one embodiment of the present invention is to operate said single shaft mixture having the following steps:
a. pouring the cement from the top of drive side of the top cover (12) in said single shaft mixer conveyor (100);
b. pouring the silicon base chemical liquid with the atomizing chambers with cement into the casing area of the said single shaft mixture conveyor (100);
c. mixing the material through pitched curved paddle blades in said shaft mixer conveyor (100);
d. providing the water-resistance cement by pitched curved paddle blades;
e. forwarding the mixed material of water resistance cement towards outlet door (10) positions at the bottom side of the casing in said single shaft mixture conveyor (100).

The motor (1) with a reduction planetary gearbox (2) drives motion to the single shaft. Cement enters from the top of the drive side top cover (12) and parallel dosing silicon base chemical liquid entering with the atomizing chambers with cement into the casing area of the mixer. The pitched curved paddle blades are processing the proper mixer of the required homogeneous structure for the quality of water-resistant cement production, between paddle blades the convey spiral flights are forwarding the mixed ready materials of water resistance cement towards the outlet door (10) positions at the non-drive side bottom of the casing of mixer machine.

Referring to FIG.1 and FIG.3 of the present invention, the motor (1) is capable to provide the drive to a gearbox (2); said gearbox (2) having a gear located on the main shaft (7); said gearbox (2) attached with said motor (1) which transmits the torque and motion in said single shaft mixer conveyor (100) and the coupling (3) provided at the end of the gearbox (2) with a coupling guards (4) to protect said shaft; a bearing located on the shaft capable to rotate the shaft with less wear and tear; said bearing covered with housing.
Continuously referring to FIG.1, the main body (9) having a housing (5) inside it containing an extended part of said main shaft (7) towards the end of the main body. The main body (9) is covered from the top with a top cover (12) and material inlet (6) provided at the top of the main body (9) through which an additive mixture of liquid enters into said main body.
Referring to FIG.2 of the present invention, the inspection door (8) is located at the top of said main body (9) to inspect the inside space of the single shaft mixture; the material outlet door (10) is located at the bottom end of the main body (9) to remove the mixture and the plurality of cleaning door (11) located at the bottom of the said main body. The shaft guard (13) is provided at the end of said extended main shaft (7) located outside of said main body (9).
The advantageous effect of the present invention is given below:
? The main advantage is saving the cost by using of single shaft mixture conveyor (100).
? Saving additional material, silo by using the single shaft mixture conveyor (100).
? The water resistance cement or other premium product and customer need fulfillment by delivering product on the same day when the order is placed. Direct dispatch of water resistance cement can be started as the cement plant shall do for other special products.
? Improvement in cement mill TPH by reducing Water resistance cement production and special power consumption. (Approx. 40 TPH feed loss based on output in PPC cement production.)
? It’s saving power consumption; replacing the technology simplifies small machine production.
? Reduce dust emission in cement mill mainly in Silo charging bucket elevator circuit.
? It saves national benefits of Green products, saving the environment, saving power, saving machinery, saving lots of maintenance cost, saving man powers and final savings of the production cost very low compared to the earlier machinery production.
Without further description, it is believed that one ordinary skill in the art can, using the preceding description and the illustrative examples, make and utilize the present invention and practice the claimed methods. It should be understood that the foregoing discussion and examples merely present a detailed description of certain preferred embodiments. It will be apparent to those of ordinary skill in the art that various modifications and equivalents can be made without departing from the spirit and scope of the invention.

Reference Numerals

Single Shaft mixture Conveyor(100)
Motor (1)
Gear Box (2)
Coupling (3)
Coupling guard (4)
housing (5)
Material Inlet (6)
Main shaft (7)
Inspection Door (8)
Main Body (9)
Material Outlet door (10)
Cleaning Door (11)
Top Cover (12)
Shaft Guard (13) , Claims:Claims
We Claim,
1. A single shaft mixer conveyor (100) comprising:
a motor (1) being capable to provide the drive to a gearbox (2);
said gearbox (2) having a gears located on a main shaft (7); said gearbox (2) attached to said motor (1) which transmits the torque and motion in said single shaft mixer conveyor;
a coupling (3) provided at the end of the gearbox (2) with a coupling guards (4) to protect said shaft;
a bearing located on the shaft capable to rotate the shaft with less wear and tear; said bearing covered with a housing;
a main body (9) having a housing (5) inside it containing an extended part of said main shaft (7) towards the end of said main body; said main body (9) covered from the top with a top cover (12);
a material inlet (6) provided at the top of the main body (9) through which an additive mixture liquid enters into said main body;
a plurality of inspection door (8) located at the top of said main body (9) to inspect the inside space of said single shaft mixture;
a material outlet door (10) located at the bottom end of said main body (9) to remove the mixture;
a plurality of cleaning doors (11) located at the bottom of said main body;
a shaft guard (13) provided at the end of said extended main shaft (7) located outside of said main body;
characterized in that,
said main shaft (7) having blades on the surface being capable to mix the cement mixture and convey said mixture at the same time with a single shaft mixture conveyor (100).

2. The single shaft mixer conveyor (100) as claimed in claim 1, wherein said single shaft mixer having pitched curve paddle blades being capable to mix and convey the mixer at the same time and provide the water resistance cement at the outlet door (10).

3. The single shaft mixer conveyor (100) as claimed in claim 1, wherein said pitched curved paddle blades which are mounted on the diameter of curved flights being capable for mixing the chamber operation through the windows holes.

4. The single shaft mixer conveyor (100) as claimed in claim 1, wherein said additive liquid can be selected from silicon base additive chemicals material.

5. The single shaft mixer conveyor (100) as claimed in claim 1, wherein single shaft mixer (7) having convey screw spiral flight for material conveying operation through window holes.

6. The single shaft mixer conveyor (100) as claimed in claim 1, wherein said pitched curve paddle blade having adjustable angle for varying the mixing and conveying of said material in said single shaft mixer conveyor (100).

7. The single shaft mixer conveyor (100) as claimed in claim 1, wherein method to operate said single shaft mixture having following steps:
a. pouring the cement from the top of the drive side of the top cover (12) in said single shaft mixer conveyor (100);
b. pouring the silicon base chemical liquid with the atomizing chambers with cement into casing area of the said single shaft mixture conveyor (100);
c. mixing the material through pitched curved paddle blades in said shaft mixer conveyor (100);
d. providing the water-resistance cement by pitched curved paddle blades;
e. forwarding the mixed material of water resistance cement towards outlet door (10) positions at the bottom side of the casing in said single shaft mixture conveyor (100).

Date this 13 July of 2022