Technical field

The present invention relates to a Mokaze method of preventing sintering machine, and more particularly, by placing a raw material to form a packed bed of raw material, the position of each Paretsu Bok you are around the sintering machine in an endless accurately recognized, by combining appropriate Mokaze detection method to this is the preferred technique used to detect the Mokaze due to pallets Bok sintering machine.

Background technique

In the blast furnace steel industry, sintering machine, as shown in FIG. 9, the pallet P of a series longitudinally movable plurality of palette 1 in the longitudinal direction of the sintering machine 5 is continuously connected, series fixed in parallel below the Paretsu Bok P of comprising a plurality of inlet means comprising a wind box 2 provided. Each pallet 1, as a perspective view shown in FIG. 10, arranged Great bar 7 to the bottom, and a wheel 10 on the outside of the side walls 8 which are disposed on both sides across the Great bar 7. As shown in FIG. 9 (b), a series of pallets P are connected and the leading and trailing ends has a structure orbiting the casing 3 in one of the sintering machine 5 endlessly. Incidentally, FIG. 9 (a) a plan view of the sintering machine 5, (b) is a side view. Each window pop box 2 is pressed reduced by intake Z evacuated blower (not shown) through an intake pipe 17. Then, the orbiting of the series of pallets P, each pallet 1, sintering raw material containing coke powder supplied from a raw material supply hopper 3, are stacked. The surface of the sintering material layer is ignited by the ignition furnace 4, it is air via a wind box 2 at the same time. Thus by being sucked from the upper surface to progress the combustion zone below the sintering material layer 30 (FIG. 1 1), continuously producing sintered ore. Figure 1 1, as viewed from the longitudinal direction of the sintering machine 5, Roh \ ° Rett 1 and wind box 2, that is, the cross-sectional view of a sintering machine 5. A series of pallets P, by the two rails 26 on which is provided fixed to both sides of the casing 3 in one of the sintering machine 5, the wheel 1 0 provided in each pallet 1 rolling, sintering It moves in the longitudinal direction of the machine 5.

Incidentally, the sintering machine 5 has an advantage that it can be produced continuously sinter, breakage of Great Barr 7 that is provided on the pallet 1 the bottom, between the adjacent pallets 1 of the connecting portion of the sidewall 8 gap, due wear of pallets to further Toshiruba 6 (see FIG. 1 1), there is a disadvantage that it is difficult to a sealed structure. In other words, there occurs a gap, does not pass through the sintered material layer 30, there is a problem that unnecessary air does not contribute to sintering (Mokaze) flows into a large amount within the wind box 2. Becomes a child Mokaze of this that much wasteful power to manufacture sintered ore and often is consumed, which is economically significant losses.

Therefore, conventionally, various methods as disclosed as a method for detecting the Mokaze example, Patent Documents 1 and 2 have been considered, they are classified into two Mokaze detection method. One is a method for measuring the oxygen concentration in the exhaust gas discharged from Huy command box, and the other is a method to measure the exhaust gas flow rate (flow velocity). However, in order to test knowledge of Mokaze due to Paretsu Bok in a series of Paretsu Bok sintering machine, the position of the pallet accurately grasped, to be combined with a suitable Mokaze detection method, a series of pallet it is not possible to specify a palette that is Mokaze from. The following describes the conventional method to accurately recognize the position of the essential Paretsu bets to identify the pallet that Mokaze. Incidentally, with respect to the "recognizes the position of the pallet to accurately" in the present application, identifying the particular one palette of the series of pallets, and, for example, position set in the longitudinal direction of the sintering machine the position of the pallet Bok, means that you measured with high accuracy.

Patent Document 3, the invention of sintering combustion front Great arrival position detecting method is disclosed. Pallet position recognition method of sintering machine described in Patent Document 3 is a method of recognizing Paretsu bets position with Paretsu Bok sensor using a micro switch or the like. Are arranged Paretsu Tosensa a particular location pallet Bok of sintering machine passes an upper, the specific portion of each Paretsu Bok passing over the pallet Bok sensor detects, for example, traveling forward end. Time of first, stores the number of the pallet that is on the pallet sensor, the next pallet is detected by the pallet sensor, updating the roughness or dimethyl palette number Paretsu Bok list in numerical order in which is stored both at that time for storing. Repeating this, it calculates the moving speed of Paretsu Bok from the difference and Paretsu length per toe pieces of passage time. The moving speed on the basis of a specific pallet positions, such as those obtained as the distance from the ignition furnace.

Further, Patent Document 4, it is described that detects passage of an object by using the RE ID tag. The technique of Patent Document 4 is to detect the passage of the object, but not to detect the position. Further, it is described that read and write data in the moving body by using the RF ID tag and the antenna, the RF ID reader Lai evening one in Patent Document 5. However, the technique described in Patent Document 5, arranging a plurality of antennas in the moving direction of the moving body spread RF ID reader one line evening one detection area, the RF ID tag and RF ID reader Rye evening one you relative movement at high speed even those that enable the reading and writing of large amounts of de Isseki of between of, and are not intended to detect the position.

Patent Literature

Patent Document 1 JP-6 1 195 929 JP

Document 2 Japanese Laid-Open Patent Publication 264 027 the 1st 11

Patent Document 3 JP-59-185739 JP

Patent Document 4 JP 2008- 05241 1 JP

Patent Document 5 JP 2006- 172 10 1 No.

Non-Patent Document

Non-Patent Document 1 Kurimoto Technical Report No. 56, 17- 18 pp

Summary of the Invention

Problems that the Invention is to Solve

However, in the "pallet position recognition method of sintering machine" described in Patent Document 3, since the pallet sensor using a micro switch or the like, once the pallets recognition leak or double reading some reason arising, single pallet whole minutes or more, deviates recognized position, as a result and repaired the pallet not Mokaze, will be leaving Paretsu bets must be repaired Conversely it online, generates a problem that Mokaze persists to.

In fact, a series of pallet normal sintering machine which consists of more than 100 Paretsu Bok, since it goes around the sintering machine at about 90 minute intervals, Paretsu Tosensa the above at least 1600 times a day , it is necessary to detect the passage of Paretsu Bok. Sintering machine, in order to continuous operation usually more than 30 days, as well and on the recognition number of times 50000 times in one month, in the Palais Ttosensa using the micro sweep rate Tutsi like to repeat the ON- OFF of Suitsuchi Ri by the mechanical action , there is a problem from the viewpoint of durability. Moreover, environmental around sintering machine, hot, humid, high-order dust and the sensor on the environment is very harsh, Wei the Paretsu Tosensa long term to a normal state in Wataru connexion sensitive as traditional

It is not easy to lifting.

In view of the above problems of the conventional pallet position recognition apparatus of the sintering machine, the present invention, the position of the pallet Bok orbiting the sintering machine endlessly, Wataru connexion stably in a long period of time, and a first object to provide a pallet position recognition apparatus of the sintering machine which is capable of accurately recognized, and includes a person the pallet position recognition device, a Mokaze due to pallet, the long period Wataru in connexion stably, and to a second object to provide a Mokaze sensing apparatus of the sintering machine that is capable of detecting accurately.

Means for Solving the Problems

It is a gist of the present invention is as described below.

Palette position recognition apparatus of the sintering machine of the present invention, loaded with sintered material more Paretsu Bok movable is connected to the moving direction, a series of endless its leading and trailing portions are connected exhaust Paretsu and Bok, a plurality of wind boxes disposed under the series of pallet fixed to the housing, is connected to the lower end of each said plurality of wind box the gas in the win de box the intake pipe of the sintering machine comprising a leak wind sensing device for, in a palette position recognition apparatus of the sintering machine to detect the position of the pallet Bok respective sintering machine longitudinal HoSho orbiting the sintering machine there is disposed on the outside of the pallet each sidewall, the RF ID tag capable of writing and reading of identification information, is fixed to the housing of the sintering machine, opposite the series of pallets, circling each path An antenna installed in the possible locations to send and receive radio waves for a predetermined time between the RF ID Yugu installed in Tsu bets are connected to the antenna, identification information of each of the RF ID tag a write and read-capable RF ID Yugu Li one Dalai evening of a signal including, on the basis of the identification information of the RF ID tag that is received from the reader Z Rye evening, passing through the position of the antenna identifies Paretsu bets, characterized by comprising a signal processing unit for recognizing and detecting the position of the Paretsu Bok.

Further, the pallet position recognition apparatus of the sintering machine of the present invention, the reader Z Rye evening RF ID tag, a professional one blanking signal requesting the identification information to the RF ID tag in a predetermined time period via the antenna sent to obtain the identification information from the signal reception wave returned from the RF ID tag, and outputs the identification information as the identification signal to the signal processing unit, the signal processing unit, input in the predetermined time period based on the identification signal, the position of the number and the sintering machine longitudinal direction of each pallet, characterized in that derived using preset information for arrangement of the series of Paretsu Bok.

Furthermore, the pallet position recognition apparatus of the sintering machine of the present invention comprises a speed detector for detecting a moving speed of each pallet, wherein the signal processing unit, the moving speed of Paretsu Bok inputted from pre-Symbol rate detector , and based on the series of Paretsu information arrangement of Bok, characterized by deriving the position of the number and the sintering machine longitudinal direction of each Paretsu Bok.

Mokaze detecting apparatus of the sintering machine of the present invention is a Mokaze detecting apparatus of the sintering machine having a pallet Bok position recognition apparatus of the sintering machine, direction perpendicular to the sintering machine longitudinal direction of the wind box the top of the opposed walls, and light emitter and a light receiver facing the width direction of the pallet Bok respectively are disposed, the optical path is received by the light receiving unit emits a laser beam from the light emitting device one or a plurality of laser oximeter measures the oxygen concentration in the previous SL value of the oxygen concentration of the laser oximeter in wind box measured by the set of obtained by the pallet position identification device and a palette respective position data, characterized by comprising a data processing device for detecting the presence and magnitude of the leakage air about the respective said set of palette.

Effect of the invention

According to Paretsu preparative position recognition device of the present invention described above, the position of the pallet Bok orbiting the above sintering machine endlessly, Wataru connexion stably in a long period of time, and accurately recognize and can to become. Further, according to the Mokaze detecting apparatus of the sintering machine comprising the path string Bok position recognition device, a Mokaze due to path column Bok, a long period of time to Wataru connexion stable, and allows the detecting accuracy I

Further, according to the Mokaze detection using the pallet Bok position measurement stationary invention

, Mokaze from, for example, equipped with a gray one Tovar of damage to the bottom of the palette Bok

, Next if Ό Paretsu Mokaze from articulation of Saidou Saiichiru between Bok accurately be detected it becomes possible to Mokaze due to wear of the pallet shea one resolver foremost further, eight being Mokaze. The column Bok can be reliably identified. Was but connexion, Ri particular exchange and repair Paretsu Bok with Mokaze identified, the obtained comparing significantly conventional, and it is possible to reduce the stable leakage air. As a result, not only reduction of power consumption of the sintering main exhauster through a sintered pallet Bok due to the increase is the volume of air sucking properly, it is possible increase production of sintered ore.

BRIEF DESCRIPTION OF THE DRAWINGS

1 (a) it is because a plan view of a sintering machine provided with a pallet position recognition device of the present invention.

1 (b) is that a side view of a sintering machine provided with a pallet Bok position recognition device of the present invention.

Figure 2 is a cross-sectional view seen from A- A line of FIG. 1 (a).

3, Ha of the invention 0 shows the system configuration outline of Retsuto position recognition device to blow 'click view der ¾.

4, Ha invention. Measurement process Furochiya of Retsuto position recognition apparatus which is an Bok.

5 (a) is a plan view of a sintering machine provided with a pallet position identification device and Mokaze detection equipment of the present invention.

5 (b) is a side view of a sintering machine provided with a pallet position identification device and Mokaze detection equipment of the present invention.

Figure 6 is a sectional view seen from B- B line in FIG. 5 (a).

Figure 7 is a plot click diagram showing a system configuration outline of leak wind sensing apparatus of the present invention.

Figure 8 is an enlarged view of the laser oximeter portion of FIG.

9 (a) is a plan view of a conventional sintering machine.

9 (b) is a side view of a conventional sintering machine.

Figure 10 is a perspective view of the pallet.

Figure 1 1 is a cross-sectional view seen from C one C line in FIG. 9 (a).

DESCRIPTION OF THE INVENTION

Embodiments of Mokaze detecting apparatus of the sintering machine having a pallet Bok position measuring device and the pallet position measuring apparatus of the sintering machine of the present invention will be described in detail with reference to FIG below. Note that part or the like having the same function in the figures by the same reference numerals will be described in the Easy clarity the description of FIG.

Ingredients first embodiment of the present invention>

A schematic configuration of the embodiment of the pallet position recognition apparatus of the sintering machine of the present invention, shown in FIGS. 1, 2, and 3. 1 shows a sintering machine 5 where the position recognition device is provided according to the present invention, (a) is a plan view, (b) a side view. Sintering machine 5, as shown in FIG. 1, provided with a series of Paretsu Bok P movable longitudinally plurality of Paretsu sheet 1 is connected in the longitudinal direction, fixed to the lower part of a series of pallet P It obtained a plurality of win

Comprising an intake means comprising de box 2. Each pallet 1, as shown in FIG. 10, arranged Great bar 7 to the bottom, outside the rhino Douoru 8 disposed on both sides across the gray Bokuba one 7, the wheel 10 Bei Eteiru. As shown in FIG. 1 (b), a series of pallets P are connected and a rear end and a front end, you circulating in the housing 31 of the sintering machine 5 endlessly. Each wind box 2, is reduced by the intake Bruno evacuated blower (not shown) through an intake pipe 17. During circulation of the series of pallets P, each pallet 1, sintering raw material containing coke powder supplied from a raw material supply hopper 3, it is stacked. The surface of the sintering material layer 30 is deposited fire ignition furnace 4, are air via a wind box 2. Figure 2 is a cross-sectional view seen from A- A line of FIG. Pallet 1 is moved by the two rails 26 on which is provided fixed to both sides of the housing 31 of the sintering machine 5, the wheels 10 provided in each Paretsu Bok 1 roll.

In the present invention, FIG. 1, as shown in FIG. 2, the side surface portions of all Paretsu sheet 1 of the sintering machine 5 is mounted commercial RIFD tags 11 one by one, respectively. The attachment position of the RFID tag 11, for example, below the carriage 9 than Saiduo Lumpur 8 height direction, the direction of travel between the two wheels 10, 10 adjacent in the longitudinal direction of the sintering machine 5 preferably in the center of. In this embodiment, RFID tag 11 may be used a passive type. The selection reason, burden of power battery replacement for unnecessary is no damage. Then, as the RFID tag 11 of the passive type, instrumentation Chakusuru Paretsu Bok 1 may use a RFID tag 11 of the long UH F band whose communication distance Onmetaru state for steel. The RFID tag 11 respectively attached to each pallet 1, allowed to advance holds identification information such as the pallet number.

Note that the RFID stands for Radio Frequency Ident i ficat ion, the built memory embedded recorded ID information tag (evening consisting IC chip

From grayed), by short-distance wireless communication using radio wave refers to that transmit and receive the desired information. For this RFID tag, using the external transceiver Te cowpea in wireless communication, it is possible to read and write the desired information in the memory of the RF ID tag.

Meanwhile, as shown in FIGS. 1 and 2, the information read-write antenna 12 to send and receive radio waves with the RFID tag 11, directly opposite the direction the RFID tag 11 mounted on the side surface of the pallet 1, towards the information (also referred to as a less the antenna) write antenna 12 pointing direction, it is placed and fixed to the housing 31 side of the sintering machine 5. Distance of the RFID tag 11 and the antenna 12 when the RFID tag 11 in pallet 1 is mounted passes through the antenna 12 later Yodo front, for example, approximately lm. As shown in FIG. 3, the antenna 12 via a signal line RF18, is connected to the signal processing unit 14 through the reader-writer 13 to perform up viewing writing and reading information to the RFID tag 11 . Near the front of the antenna 12, when the Paretsu sheet 1 was placed RFID tag 11 passes through, for example, based on the number of the signal of the RFID tag 11 by the reader Z Lai evening 13 has been read, the signal processing unit the number of the pallet 1 14 recognized. In this embodiment, the RFID tag number is decided RFID tag numbers to be the same as the pallet numbers, so as eliminate the inter-hand for butted both numbers.

Configuration of the pallet position recognition device 32 shown in FIG. 3 will be described in detail. In the present embodiment, for example, probe signals for requesting discrimination signals based from the reader Z Lai evening 13 to the identification information of the RF ID tag 11 at one-second period is outputted to the antenna 12, the antenna 12 transmitting a transmission wave of the probe signal. After the transmission wave is received by the RFID Yugu 11 receives the transmission waves returned from the RFID tag 11 as a response signal at the antenna 12. The received signal is input from the antenna 12 to the reader Z Rye evening 13. Then the identification signal ID and the like from the reader / write evening 13 to the RFID input 19 of the signal processing section 14 is outputted. RFID input 19 of the signal processing unit 14 from the information contained in the identification signal, recognizes the RFID tag number or palette number. Furthermore, RFID input unit 19, in association with the identification signal and the input time of such the palette number is saved in the internal memory. This and Is, each identification signal to store, by appending the order of the input signal from the reader-writer 13 is for chromatic in the subsequent signal processing preferred. The signal processing unit 14 that has a built-in clock function section (not shown). In the present embodiment, the moving speed of Paretsu Bok 1 definitive the operating state of the sintering machine 5 (pallet velocity) is about 2500cmZ min. Further, the number of reads palette Bok 1 per single this time 10 to 14 times the order and to -O. In this case, feeding • converting from reception cycle (1 second) and pallet speed, lateral RFID tag 11 from the center of the antenna 12 (i.e. sintering machine longitudinal direction) of about 20 to 30 (2500 / (10-14)) reading the RFID tag 11 in the moving range of the cm. Since the longitudinal length of each pallet 1 is typically 1.5 m, it is determined not to be read incorrectly RFID evening grayed 11 mounted on a pallet 1 next. The above Lee Da Z Rye evening 13, RFID input 19, and, the functions for measurement included in each section included in the signal processing unit 14 to be described below, based on by that control the measurement control unit 24 It is executed.

As described above, when transmitting and receiving signals to and from the RFID tag 11 and the antenna 12, it is necessary that the signals from adjacent RFID tags 11 do not overlap. Therefore, the distance L between adjacent RFID tags 11, there is a minimum value L 0 can be Installation. The minimum distance L 0 is directed to transmitting and receiving radio waves of the antenna 12 and RFID tag 11, and is determined by the shortest distance between the RFID tag 11 to the antenna 12 and moving. Then, the distance between the set of palette P interval L and the antenna 12 of the RFID tag 11 may be determined as appropriate within a range in which the (interval L> minimum distance L 0).

In the present embodiment, when you pass in front pallet 1 of the antenna 12, the number reading of the installed RFID tags 11 one per, since it was more than 10 times Ri through the foregoing, the RFID tag 11 not be skipped without being read even once the identification signal.

Further, in this embodiment, the housing 31 of the sintering machine 5, in order to measure the moving speed of Paretsu sheet 1 (pallet velocity), for example, installing a speed detector 15 constituted by PLG (Figure 3 reference). Then, for example, a pulse signal outputted from the PL G, as shown in FIG. 3, is input to the speed signal input portion 20 of the signal processing unit 1 4. Responsible for such failure of the RFID tag 11, when there is to skip the identification signal including the pallet number, there is no input of palette number at the timing calculated from pallet velocity output from the velocity detector 15 There is detected, further, on the basis of the pallet numbers before and after the RFID tag 11 of the RFID evening grayed 11, it is possible to identify a pallet number of bad a RFID tag 11 skipping. For example, if read the number of the RFID tags 11 mounted on the pallet 1 after bad RFID tag 11, by storing the order of arrangement of the pre-palette number to signal processing unit 14, the RFID tag 11 even if it carry one reading, it is possible to interpolate the number. In the present embodiment, the speed detector 15 by using, as described above, and incorporates in parallel pallet speed signal processing section 14, against the number (i.e., pallet number) from palette speed and RFID tag 11 It comprises a misrecognition preventing portion 22 to have a function to match the signal processing section 14, thereby preventing the erroneous recognition of the path string port number, such as skipping.

Further, the pallet position computing unit 23 of FIG. 3, based on the initial position and the initial state of operation of the arrangement order and a set of palette P in advance the stored Paretsu sheet 1 of the arrangement order and pallet number, speed detection based on the pallet speed that by the vessel 15, each node. recognizes longitudinally definitive position of the sintering machine 5 Rett 1. For example, a Bok series of pallets P force 00 units pallets, leaving the numbering from No. 1 in this order to each of the palette 1 to No. 100. Then, as an initial state of operation, a certain time

The front end of the 1st palette Bok to TO is to be the reference position of the entrance side of the sintering machine 5 (raw material supply hopper 3 side). Based on the information of the arrangement of the above series of pallets P, when carrying out the position recognition by the RFID tag 11 that is attached to the pallet 1 at a certain time Tm, the speed detection value Vm by the speed detector 15 since the time (Tm-tO), can be calculated progress in sintering machine within 5 of the pallet distance Lm (Lm = VmX (Tm-tO)) is the distance between the travel distance Lm and No.1 pallet and the pallet from, it is possible to derive the position of the palette 1 against the above reference position. And position the calculated difference of the pallet Bok 1 based on the identification signal input from the RF ID tag 11 mounted, derived value of the position of Paretsu sheet 1 derived in the process, as described below There when shifted over 10cm, in the form status of the present embodiment, the measurement value of the position based on the identification signal from the RFID Yugu 11 Te positive, adopting a method for correcting the position of the pallet 1. Instead of the above-mentioned criteria position, it may be used as the reference position center of the installation position of the sintering machine 5 longitudinal direction of the antenna 12.

How to recognize the position of each pallet 1 by using the detection value Vm and the time Tm of palette speed by the speed detector 15 described above may avoid such Sri Ppuyagayu structural reasons of the sintering machine 5 since it has the problem on the measurement accuracy that it is difficult, stable not preferred as a good pallet position recognizing how accurate. For example, if an error is accumulated if it as shifted pallet 1 single fraction (1.5 m), so that the same problem as the method of mounting the serial in Patent Document 1 described above is generated. Therefore, use of Paretsu preparative position recognition method of the present invention for estimating the position of the pallet 1 based on the identification signal input from the RFID evening grayed 11.

In palette position recognition device of the present embodiment, the pallet 1 or al, to obtain an identification signal composed of numbers or the like, the flow of Paretsu Bok position recognition process executed by the signal processing unit 14 based on the identification signal an example of a will be described below with reference to FIG.

S 100: identification data acquisition process

First, Ru is outputted from the reader / Lai evening 13 under the control of the RFID input 19, based on a probe signal requesting an identification signal, and from the antenna 12 to the pallet 1 side, the transmission of a predetermined period delta T (or receiving) during time Tm (m = 0, 1, 2, in.), and transmits the transmission waves of the probe signal, for example, 1-second intervals. Next, with respect to the transmission wave of the probe signal transmitted from the antenna 12, the received waves as a response from the RF ID tag 11 antenna 12 receives at a predetermined period delta T, and transmits to the reader Z writer 13. Reader / Lai evening 13 from the signal of the received wave, and detecting a response signal including identification information such as the pallet numbers, and inputs the response signal to the RFID input 19. However, when the normal RFID tag 11 at a position opposed to the antenna 12 is not a response signal from the reader Z Lai evening 13 is not output, the response signal including the identification information to the RFID input unit 19 is not input. At this time, the to RFID input unit 19 NULL signal containing no identification information is input at a predetermined period delta T. In RF ID input unit 19, the identification signal, such as a palette number from the input response signal, or a non-detection signal from the NULL signal (e.g., "NULL"), the above-mentioned transmission time signal Tm and straps attached to the identification data as Dm, it is recorded in the memory you built sequentially. In this case, it is preferable to attach a serial number N to each set of identification signals such as a transmission time signal Tm. Furthermore, an identification de Isseki Dm sequentially input to the misrecognized prevent portion 22 and the pallet position computing unit 23. The above process may be performed in synchronization with the time signal output from the clock component incorporated in the measurement control unit 24 (timing signal).

S 101: A let pass detection processing

The RFID input unit 19, further, the number of times the "NULL" is given, as when it is entered for example three times in a row, the one palette (the installed RF ID tag) has been completed passes, pallet pass signal to create a Vps. Then, RFID input 19, the pallet pass signal Vps sequentially input to the misrecognized prevent section 22. Further, the pallet pass signal Vps may be input to the pallet position computation unit 23. The above process may be performed in synchronization with the time signal output from the clock component incorporated in the measurement control unit 24 (timing signal).

5 102: pallet Bok position calculation process

In the pallet position computing section 23, based on the identification data Dm which to continue communicating sequentially input from the RFID input unit 19, using the identification data Dm from one pallet Bok of RFID tags, for example, the initial reception time seeking two intermediate time from the last reception time, it recognizes that the line longitudinal direction of the center of Paretsu Bok 1 RFID tag 11 is attached is located in front of the antenna 12 at that time. Note that when the processing may be used pallet pass signal Vp s as a trigger signal or the like.

5 103: pallet position error calculation process

On the other hand, the pallet position computing unit 23 receives the speed detection value Vm by the speed detector 15 to the speed signal input portion 20, because with the speed detection value Vm and the measurement start or these time (Tm-TO), 1 th pallet (series of pallets at the beginning) of the sintering promoter on board distance Lm (Lm = VMX (Tm-tO)) can be calculated from the distance between the travel distance Lm and No.1 pallet and the pallet, the reference position and it calculates the position of each Paretsu Bok against. Thus was calculated from a pallet speed, calculates its pallet position for a pallet, the error between Paretsu bets position recognized in S 10 2, when the error is less than ± Xcra was calculated from the pallet velocity and outputs the pallet location as positive. Further, when the error is allowable range earth Xcm above, as a positive a palette position recognized in S 102, the position of each Paretsu Bok at the present time in the sintering machine calculated from the pallet velocity, by an error to correct. In this embodiment, for example, set to X = 10 cm, appropriately set on the basis of the desired position detection accuracy.

5 104: erroneous recognition of palette number

The erroneous recognition prevention portion, and the measured value of the pallet position derived in S 103 based on the measurement values ​​of the palette speed by the speed detector 15, against the identification data Dm obtained in S 100, the RF ID evening grayed by skipping such a response signal caused by transmission errors or the like between the reader Z Lai evening 13 executes a process that to prevent erroneous recognition of when the derivation of pallet number based on palette speed. Incidentally, the erroneous recognition process, a derivation of pallet number based on Paretsu preparative speed by the speed detector 15 may be used when the primary position detection means. When the main position detecting means a response signal from the RF ID tag, it is not always necessary to use.

5 105: result output and recording process

Calculation results and out results obtained in the process described above, a computer display, etc. for presentation to the operator or the like by the output unit 25, or outputs to the recording device.

While improving the position recognition accuracy of pallet 1 by the above process, such as by height position relationship between the direction and both the RF ID tag 1 1 direction and the antenna 12, that read status changes subtly, advance It was found by the off-line test which was carried out. Therefore, when you practice of the present invention, when installation of the RF ID tag 1 1 and the antenna 12, may pay close attention to the directivity and arrangement of each device.

As described above, the signal processing unit 14, RF ID input unit 19, the speed signal input unit 20, pallet number of erroneous recognition preventing portion 22 and the pallet position arithmetic unit 23, the measurement control unit 24, and an output unit composed of 25 (see FIG. 3). The signal processing unit 14 may be configured by a computer system. The computer system,. CPU, main memory, external storage device such as an HDD, an input device such as a keyboard and a mouse, and Konbiyu evening may be configured with displays. Further, by a series of processes that recognize Paretsu bets position described S 100 to S 105 to create a computer program to be executed by the computer system to load and run to the main Symbol 憶 apparatus, the present invention it is possible to embody the path string Bok position recognition apparatus of the sintering machine.

Embodiments of Mokaze sensing apparatus palette Bok sintering machine which is the second invention of the present application will be described in detail with reference to FIGS. Your Keru Mokaze detecting apparatus in this embodiment, pallet position recognition device of the first invention illustrated above are provided. In the drawings the following description, sign of the equipment and a portion having a said figures the same features and is given the same reference numerals, to avoid complexity of the drawing.

5, the sintering machine 5 Mokaze detecting device is provided according to the present invention shows, (a) shows the plan view, (b) a side view. Sintering machine 5, as shown in FIG. 5, a large number of the pallet 1 is connected in the longitudinal direction, and a series of Paretsu bets P longitudinally movable fixedly mounted below the series of pallet P comprising a plurality of inlet means comprising a wind box 2. Each pallet 1, as shown in FIG. 10, arranged Guretoba one 7 on the bottom, on the outside of Saidou all 8 disposed on both sides across the Great bar 7, and a wheel 1 0. As shown in FIG. 5 (b), a series of pallets P are connected and the leading and trailing ends, orbit the casing 3 in one of the sintering machine 5 endlessly. Each wind box 2 is decompressed by the blower (not shown) through an intake pipe 1 7. During circulation of the series of pallets P, each pallet 1 is supplied with raw material to be sintered from the raw material supply hopper 3 containing co one box powder sintering material layer 30 is formed. The surface of the sintering material layer 30 is ignited by the ignition furnace 4, it is air via a wind box 2. Figure 6 is a sectional view seen from B- B line in FIG. Also, cross-sectional view of A- seen from line A in FIG. 5 is similar to FIG. Thus, the present embodiment is provided with a pallet position recognition device 32 described in the first embodiment described above. Further, the pallet 1 by the two rails 26 on which is provided fixed to both sides of the housing 3 1 of the sintering machine 5, the wheel 1 0 provided on a side surface of each Paretsu sheet 1 roll Moving. In the following description of embodiments of the present implementation, Roh, since the description about the ° Retsuto position recognition device 32 is the same as the first embodiment, it is omitted. In this embodiment, as shown in FIGS. 5 and 6, the line longitudinal direction of the sintering machine 5 (travel direction of the pallet 1), the side wall 2 a of the wind box 2 you located immediately below the pallet 1 top the top, opposite the width direction of the pallet 1, in order to detect the variation of the oxygen concentration in the wind box 2, for example, non-Patent Document 1 (Kurimoto Technical report No. 5 6, 1 7- 1 8 pages) laser oximeter 1 6 as is the placing serial in, installing the light-receiving unit 1 6 b for detecting the light emitter 1 6 a laser beam for emitting a laser beam. The reason for installing the upper portion of the side wall 2 a win de box 2, Mokaze flowing from Noretsuto 1 to wind box 2, since diffuses As the gradually drawn downward toward the suction pipe 1 7, oxygen to identify Mokaze point measurement of O connexion palette 1 concentration is for as much as possible close to Paretsu sheet 1 is preferred. In this case, to align the leak wind detection sensitivity in the width direction of the pallet 1, and with respect to the optical axis 1 6 c force terrestrial emitter 1 6 a and the light receiver 1 6 b a connecting direction which parallel to the direction the laser beam in the horizontal it may set to be parallel to the bottom surface of the pallet 1. Further, in order to facilitate specific palette 1 that Mokaze, so that the optical axis 1 6 c is at right angles to the line longitudinal direction of the sintering machine 5, the light emitter 1 6 a and the light receiver 1 a 6 b to Installation.

7 shows a configuration of Mokaze sensing device 33 of the present embodiment. The Mokaze sensing device 33 is provided with a pallet position recognition device 32 shown in FIG. 3 described above. Laser oximeter 16, as shown in FIG. 7, it is connected to the measurement controller 24 through an oxygen concentration signal input unit 2 1, based on by that control the measurement control unit 24, the measurement of the oxygen concentration It is executed. Further, the laser oximeter 16, based on the measurement of the oxygen concentration, the data processing apparatus 4 1 for detecting the presence and magnitude of wind leakage is plugged for each Paretsu bets. De Isseki processor 41, for example, a personal Combi Yu evening like.

In this embodiment, as shown in FIGS. 6 and 8 (partial enlarged view), the frame 26 a on both sides of the railway 26 which wheels 10 of the path column sheet 1 is rolling, the position facing the side wall 2 a of Windobo box 2 to, respectively provided with through holes, through the purge line 27 to the respective through holes, one of the light emitters 16 a on the end of the purge tube 27, the light receiver 16 b to the end of the other purge tube 27, respectively flanges 28 connected via a. The light receiving port of the emitter 16 a of the exit opening and the light receiver 16 b, each of the optical path, the sealing glass window 29 is provided for protection. Contamination prevention and the sealing glass window 29, the purpose of the clogging prevention of the purge tube 27 due to dust in the exhaust gas, in the purge line 27, wind box from emitter 16 a and the light receiver 16 b of the sealing glass window 29 2 inside toward Ke performs blowing of the nitrogen gas as the purge gas. However, blowing nitrogen gas flow rate, the composition of the exhaust gas by the nitrogen gas blown is the degree which is not significantly affected. Incidentally, the purge gas, other than nitrogen gas may be a gas that does not interfere with the oxygen concentration measurement.

Mokaze at no normal, the exhaust gas oxygen concentration in the window boxes 2 of the sintering machine 5, the supply side of the sintering machine 5 longitudinally of the sintering raw material shown in FIG. 5 (feed ore side: good pallets moving There near the side) from 17 to 20%, gradually reduced to 1 0% or less as becomes an intermediate portion in the longitudinal direction, the downstream side), the rising again of the exhaust ore (pallet movements, become closer 2 1%. This is because still fired reaction feed ore side only near the surface of the combustion material layer 30 (upper side), an order to reach unreacted oxygen within wind box 2 as it is, calcination reaction in the middle portion authentic However, it reduced oxygen unreacted, the oxygen concentration for firing reaction itself is finished believed to rise again in the discharge ore side.

Therefore, Mokaze from it is 2 1% oxygen concentration is air, and the normal state leakage air is not due to deterioration of the pallet 1, leakage difference prone position of an abnormal state in which there is a wind, i.e., the oxygen concentration the middle portion of the are stable sintering machine 5 longitudinally low, it is preferable to install the laser oximeter 1 6. However, the installation space, when it is impossible to absolutely disposed to the intermediate portion, if installed choose 箇 plants oxygen concentration is as much as possible stable even at high, it is possible to detect the Mokaze.

Furthermore, since the ambient temperature of the wind box 2 to increase closer to Haikou side, the heat resistance and maintainability of the laser oximeter 1 6 of the light emitting device 1 6 a and the light receiver 1 6 b, among the intermediate portions But it is good to set up closer to the feed ore side. Also, dust in the exhaust gas in the wind box 2 less towards the feed ore side, clogging effects Ya Pas chromatography di pipe 2 7 by the attenuation of the laser beam is also less favorable due to dust.

As an example, in the above embodiment, in total 2 6 Wind box 2, a laser type oxygen concentration meter 1 6 was placed in the feed ore side 7 th wind box 2. Although the oxygen concentration in the normal operating state at this installation position is around 7%, the pallet 1 during the passage with Mokaze, this value rose to 8-9%. Therefore, in this case, the oxygen concentration is to output a warning on an 8% or more, and notifies the Mokaze to operate operating evening.

Diameter of the laser beam of the laser oximeter 1 6 used here has about 20 MMF and sufficiently small, and 3 seconds to responsiveness. The sintering machine 5 pallets 1 attached to the position measuring device in each line longitudinally measured Paretsu sheet 1 of each location, by using the oxygen concentration measured values ​​obtained by using a laser type oxygen concentration meter 16, a series of pallet not specific Paretsu sheet 1 that Mokaze of P alone can be specified to Mokaze position in the traveling direction of the pallet 1 identified. At that time, the data of the pallet location, the contact and oxygen concentration data, the data processing apparatus 4 1 that make up using a personal computer or the like, capture via the IZO board, detects the Mokaze from oxygen concentration abnormality and, to the palette name together with the Mokaze has occurred, it may be displayed on the computer display. In the above description, a configuration using a laser oximeter one, it is clear that may constitute a wind detector leakage using a plurality.

As described above, the oxygen concentration of the second is the embodiment according to Paretsu preparative Mokaze detecting device 33 of the sintering machine, the wind box with high sensitivity by using a laser type oxygen concentration meter 16 of the present invention the measures, the Mokaze in Paretsu it wants to pass the installation position of the light receiver 16 b and the light emitting device 16 a of the laser type oxygen concentration meter 16, it is possible to detect with high sensitivity. Furthermore, the Paretsu Bok passing not include a pallet position recognition device 32 described in the first embodiment Runode, the installation position location of the laser oximeter 16 of emitter 16 a and the light receiver 1 6 b identify number, etc., it can also be specified with high precision until further Mokaze position of the sintering machine longitudinal direction of the palette.

Furthermore, in the first embodiment and the second embodiment, since the information writing to the RF ID tag 1 1 used tags also possible in front of the antenna 12 RF ID tag 1 1 pass Each time, reads the operation number n in written with RF ID tag 1 1 number for the RF ID tag 1 1, the number n + 1 that once counted mediation flop RF ID tag 1 1, for example, the signal processing unit 14 to write control to. Thereby an effective means for determining the integrity order palette 1 since the operation frequency of each path column sheet 1 on online sintering machine 5 is seen. In addition, or connected through a computer and network higher to manage the operation of sintering machines to the signal processing section 14, the signal processing unit 14 provided with the input-output unit for the operator, repair history, etc. conservation information be writable, the operation management, trouble prevention and system maintenance Tsu - it is possible to use as Le.

The second pallet of the sintering machine described in the embodiment Mokaze sensing equipment 33, as a detection device for Mokaze uses a method of measuring the oxygen concentration in the wind box 2 with a laser oximeter but it is a also possible that this is clear that the configuration adopted other known Mokaze detection method of its instead.

Industrial Applicability

In the above, use as an example for detecting the Mokaze due to pallets in the sintering process for producing sintered ore in the blast furnace iron making is a step on the steel industry, pallet position recognition device of the present invention, and the apparatus Having described the stomach leak wind sensing apparatus in detail, pallet position recognition device contact and Mokaze detecting apparatus of the present invention, other processes and steel industry, in a similar process such as other industries, Ya position detection of the moving device it is clear that also detect the gas inlet of the apparatus can be applied.

DESCRIPTION OF SYMBOLS

1 column Bok

2 wind box

2 a sidewall

3 raw material supply hopper

Ignition furnace

Sintering machine

Roh, ° column Bok Shiruba one gray Tovar Sai Douoru truck

wheel

RF ID夕グ

Antena

Reader Z Rye evening signal processor

Speed ​​detector

Laser oximeters a light emitter

b photoreceiver

c axis

The intake pipe

RF signal line

RF ID portion into force

Recognizing prevention unit erroneously speed signal input unit oxygen concentration signal input unit pallet Bok position calculating unit measurement control unit

The output unit

Rail

Purge tube

Flange

Seal glass window sintered raw material layer

Housing

Pallet position recognition device Mokaze detection device

Data processing equipment series of palette

Claim 1

Loaded with sintering material more Paretsu Bok movable is connected to the moving direction, a series of endless its leading and trailing portions are connected Paretsu and Bok, the series of fixed to the housing a plurality of wind boxes disposed under the pallet, the sintering machine comprising a suction pipe for being connected to the lower end of the respective plurality of wind boxes for exhausting gas in the wind box, sintering machine a pallet position recognition apparatus of the sintering machine to detect the pallet position of each of the sintering machine longitudinal orbiting the,

Is installed outside of the pallet each sidewall, the RF ID tag capable of writing and reading of the identification information,

Is fixed to the housing of the sintering machine, opposite the series of pallets, the position capable of transmitting and receiving radio waves for a predetermined time between the RF ID tag that is installed in each Paretsu Bok to circumferential times an antenna installed on, connected to said antenna, said a Ridarai evening signal writing and reading capable RF ID tag including identification information for each RF ID tag, RF ID inputted from the reader Z Rye evening based on the identification information of the tag, the identify the pallet that passes the position of the antenna, palette positions of the sintering machine you characterized by comprising a recognizing signal processing unit position detected and the said pallet recognition device.

Claim 2

Writer of the RF ID Yugu may obtain the RF ID evening sends probe signal requesting the identification information on the grayed at predetermined time periods via the antenna, identification information from the received waves returned from the RF ID tag Te, and it outputs the identification signal the identification information to the signal processing unit,

The signal processing unit Hazuki group identification signal inputted in the predetermined time period, the position of the number and the sintering machine longitudinal direction of each pallet, the information of a predetermined arrangement of the series of Paretsu Bok palette Bok position recognition apparatus of the sintering machine according to derived using in claim 1, wherein the. Claim 3

In the pallet position identification device of the sintering machine of claim 2, further comprising a speed detector for detecting a moving speed of each pallet, wherein the signal processing unit of Paretsu Bok input from the speed detector moving speed and based on the information on the arrangement of the series of pallets., pallet Bok position recognition apparatus of the sintering machine, characterized by deriving the position of the number and the sintering machine longitudinal direction of each Paretsu Bok.

Claim 4

A Mokaze detecting apparatus of the sintering machine having a pallet position recognition apparatus of the sintering machine according to any one of claims 1 to claim 3,

The top of the wall facing the direction perpendicular to the sintering machine longitudinal direction of the wind box, the light emitter and the light receiver are disposed to face in a width direction of the pallet Bok respectively, from the light emitting device one or a plurality of laser type oxygen concentration meter for measuring the oxygen concentration in the optical path is received by the light receiving unit emits a laser beam, the value of the oxygen concentration in wind box measured by the laser oximeter wherein from the pallet position identification device prior SL series of Paretsu bets respective position data obtained by, for and a data processing equipment for detecting the presence and magnitude of the leakage air for the series of Paretsu bets each to Mokaze detecting apparatus of the sintering machine.