JP4872590B2 - Coke oven guide car dust collection method and dust collection apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To collect dust in a good efficiency on collecting the powdery dust developed on receiving red hot coke by a dust-collecting hood loaded on a guiding vehicle, without requiring the performance of a large scale facility investment even by using the same guiding vehicle and any of the receiving container of the red hot coke of a wet type extinguishing receiver or dry type extinguishing receiver. <P>SOLUTION: This device for collecting dust is provided by arranging one piece of a first blocking plate 7 as freely rotatable in front and rear sides in the traveling direction of the dry type extinguishing receiver 3 or wet type extinguishing receiver 13 at the lower end part of the dust-collecting hood 4, and blocking not only an opening part in the traveling direction of the dust-collecting hood 4 and dry type extinguishing receiver 3, but also the opening part in the vertical direction of the dust-collecting hood 4 and the wet type extinguishing receiver 13 by rotating the first blocking plate 7. <P>COPYRIGHT: (C)2008,JPO&amp;INPIT

Description

  The present invention relates to a dust collection method and a dust collection apparatus for a guide car of a coke oven used in a chamber furnace type coke oven.

  In a chamber-type coke oven in which combustion chambers and carbonization chambers are arranged alternately, coking coal, which is a coke raw material, is charged into the carbonization chamber from the upper part of the coke oven via a charcoal vehicle, and is heated by the heat from the combustion chamber. Then, it is carbonized through the furnace wall to become coke. Coke in a red hot state after completion of dry distillation (hereinafter referred to as “red hot coke”) is extruded from the carbonization chamber by the rack beam of the extruder, and transferred to a receiver disposed below the carbonization chamber through the armor door of the guide wheel. This series of work is called "body". Coke is produced by extinguishing red hot coke after completion of the receiving body by a dry fire extinguishing system (hereinafter abbreviated as “dry fire extinguishing”) or a wet fire extinguishing system (hereinafter abbreviated as “wet fire extinguishing”).

  In recent years, dry extinguishing is mainly used in Japan for the purpose of energy recovery, in which red hot coke is carried into a cooling tower after being received and cooled by an inert gas in the cooling tower to extinguish the fire. For dry fire extinguishing, boiler facilities are used to recover the heat source of red hot coke. Boiler equipment is obliged to carry out periodic inspections and periodic repairs, and this fire extinguisher cannot be used during these inspection and repair work periods. Therefore, wet fire extinguishing including a process of cooling and extinguishing by transporting the receiver into the fire extinguishing tower and spraying water from above in the fire extinguishing tower is used as a backup, and wet fire extinguishing is used as an alternative to a period in which dry extinguishing cannot be used. . That is, even when dry fire extinguishing is used, wet fire extinguishing is necessarily used together.

  When red coke is received by the receiver, the receiver is surrounded by a dust collection hood mounted on the guide car, and dust, gas, etc. (hereinafter collectively referred to as “dust”) generated by the receiver are sucked and collected. To prevent the workplace environment from deteriorating.

  At this time, at least the receiver is not in contact with the dust collection hood when passing under the dust collection hood, and the dust collection hood has a marginal position so as not to contact the coke loaded on the receiver. Placed in. On the other hand, in order to increase dust collection efficiency, it is desirable to arrange the dust collection hood at a position where the opening between the upper end of the receiver and the lower end of the dust collection hood is as narrow as possible. The installation position of the dust collection hood with respect to the receiver is set in consideration of these conflicting factors.

  Here, the design concept of the receiver used for each of the wet fire extinguishing and the dry fire extinguishing is different, and the shape of the receiver and the height of the upper end portion are different for the following reasons. That is, the wet fire extinguishing receiver is used to extinguish fire by sprinkling water from above the red hot coke as described above. As one of the purposes is to increase the coke, the coke loading height is lowered. On the other hand, in dry fire extinguishing, a dry fire extinguisher containing red hot coke is lifted up to the top of the cooling tower of the dry fire extinguisher and the red hot coke is put into the cooling tower. Since one of the purposes is to reduce the construction cost of the fire extinguishing apparatus, the dry fire extinguishing receiver narrows the loading area and increases the loading height as compared with the wet fire extinguishing receiver.

  Therefore, normally, the height of the upper end of the dry fire extinguishing receiver is higher than the height of the upper end of the wet extinguishing receiver, and the horizontal cross-sectional area at the upper end of the dry extinguishing receiver (referred to as the “body receiving area”). ) Is smaller than the receiving area of the wet fire extinguishing receiver.

  As described above, the height of the upper end of the receiver and the area of the receiving body are different depending on the fire extinguishing system. Therefore, if the guide wheel and the dust collection hood are designed according to the fire extinguishing system, the optimum conditions for each fire extinguishing system are obtained. Can be debris and collected. However, this will increase the number of guide cars and dust collection hoods installed in the coke oven, and in order not to interfere with the operation of the coke oven, the storage location of unused guide cars and dust collection hoods will be increased. It is necessary to ensure the cost, and the construction cost of the coke oven increases significantly.

  In addition, it is technically possible to configure the wet fire extinguishing receiver so that it can be moved up and down, and to make the upper end height coincide with the upper end height of the dry fire extinguishing receiver. However, this is a large-scale apparatus, and it takes much time and cost to modify the existing wet fire extinguishing receiver, which is not realistic.

  For this reason, in the actual manufacturing process, the guide car and the dust collecting hood adapted to the dry fire extinguishing are applied to the wet fire extinguishing as they are, so that both systems use the same guide car and the dust collecting hood. At this time, since the dust collection hood needs to pass below the receiver, the position of the lower end of the dust collection hood is higher than the upper end of the receiver for dry fire extinguishing, and the dust collection efficiency by dry fire extinguishing is increased. In addition, the dust collection area, which is the horizontal cross-sectional area at the lower end of the dust collection hood, is made to match the receiving area of the dry fire extinguishing receiver.

  However, in wet fire extinguishing, because the coke loading position is low, the falling distance of red hot coke is increased and dust is likely to be generated. Using the same guide car and dust collecting hood as dry fire extinguishing, a wet fire extinguishing receiver is used. From the opening formed between the upper end of the dust collecting hood and the lower end of the dust collecting hood, dust at the time of receiving is diffused in a wide range.

  That is, since both the dry-type fire extinguishing receiver and the wet-type fire extinguishing receiver travel on the same track and receive the body, the body receiving area is determined by the size of the receiver in the traveling direction in principle. In the case of wet fire extinguishing, the area of the receiving body is larger than the receiving area of the receiving apparatus for dry fire extinguishing with respect to the traveling direction of the receiver, and accordingly, the dust collection area needs to be increased accordingly. However, since dust is collected with the dust collection area of the dry fire extinguishing receiver in practice, a large opening is formed at the lower end of the dust collecting hood and the upper end of the receiver when receiving the wet fire extinguisher. For example, dust collection efficiency decreases, and a part of the dust is diffused into the atmosphere, deteriorating the workplace environment.

  In this way, in the case of wet fire extinguishing and dry fire extinguishing, the same guide wheel and dust collecting hood are used, and if a dust collecting hood matched to the dry fire extinguishing receiver is used, the upper end of the wet fire extinguishing receiver A large opening is formed between the portion and the lower end of the dust collection hood, and the dust collection area required for wet fire extinguishing is reduced. For this reason, a part of dust will be diffused to air | atmosphere at the time of the reception of wet fire extinguishing.

  Therefore, in Patent Document 1, the length of the dust collection hood that moves following the guide vehicle on both sides in the traveling direction of the fire extinguisher is determined from the lower end of the dust collection hood to the bottom plate of the wet fire extinguishing receiver. The invention which concerns on the dust collection hood of the guide vehicle which suspended the partition plate which has it so that raising / lowering is disclosed.

  In Patent Document 2, a dust collecting partition plate is suspended from the upper part of the hood to the upper end of the receiver in the dust collection hood, and the partition plate can be freely opened and closed, so that either wet or dry fire extinguishing can be performed. An invention relating to a dust collecting hood of a coke cart that can also be used for the above is disclosed.

  In Patent Document 3, by providing an air blowing nozzle that forms an air curtain in which the air blowing direction is opposite to the dust generating direction at the peripheral edge of the dust collection hood disposed in the upper space of the receiver, An invention for sucking and collecting dust generated from a gap formed between a dust collection hood and a receiver at the time of receiving is disclosed.

  Patent Document 4 discloses a dry fire extinguishing receiver (coke bucket) that swirls red hot coke discharged from a coke oven and swivels the outside air during swiveling at a position above the upper end of the upper flange. An invention relating to a dry-type fire extinguishing receiver in which a plurality of blades for suction inside the container are provided on the outer periphery of the upper flange at intervals is disclosed.

Further, Patent Document 5 discloses a dry fire extinguishing receiver that swirls red hot coke discharged from a coke oven and turns outside air on the inner circumferential surface of an inclined flange at the top of the dry fire extinguishing receiver. An invention relating to a dry fire extinguishing receiver is disclosed in which a plurality of blades to be sucked inside the receiver are arranged at intervals and an inclined flange between the blade plates is provided with a suction port for outside air.
Japanese Utility Model Publication No. 62-144959 Japanese Utility Model Publication No. 2-14344 Japanese Utility Model Publication No. 62-166241 JP-A-5-171150 JP-A-5-171151

  The apparatus according to the invention disclosed in Patent Document 1 is applicable only when receiving a wet fire extinguisher, and not applicable for receiving a dry fire extinguisher. In addition, this device can adjust the opening of the upper end of the wet fire extinguishing receiver and the lower end of the dust collection hood by the partition plate, but it can change the dust collection area by wet fire extinguishing and dry fire extinguishing. I can't.

  Although the apparatus according to the invention disclosed in Patent Document 2 can certainly change the dust collection area of the dust collection hood by wet fire extinguishing and dry fire extinguishing, the upper end of the receiver for wet fire extinguishing and the lower end of the dust collecting hood Part of the dust is released into the atmosphere from the opening formed between the two.

  The invention disclosed in Patent Document 3 is that when an air blowing nozzle that forms an air curtain is provided with a dust collection hood that matches the receiving area of a dry fire extinguishing receiver, air is received when the wet fire extinguishing receiver is received. The blowout position is on the red hot coke received in the wet fire extinguishing receiver, and dust is rolled up. Also, if the air blowing position is set by avoiding reddish coke with a dust collection hood that matches the receiving area of the wet fire extinguishing receiver, it is formed between the receiving mouth when receiving the dry extinguishing receiver. Since the air blowing distance becomes longer due to the larger gap, the formation of the air curtain collapses due to disturbance such as wind and the blocking effect is reduced, and the workplace environment cannot be improved.

  Further, the inventions disclosed in Patent Documents 4 and 5 are applicable only when the receiver is a swivel body, that is, in a circular shape, and the blades installed on the upper part of the receiver for dry fire extinguishing, or for dry fire extinguishing The swirling of the receiver itself generates a swirling flow that sucks in the center of the dry fire-extinguishing receiver, and dust from the gap formed between the dust collection hood and the receiving port of the dry fire-extinguishing receiver. It suppresses the emission of However, if the receiving port of either the dry fire extinguishing receiver or the wet fire extinguishing receiver is rectangular, a swirling flow as described above is generated, and a swirling flow directed toward the center of the receiving device is generated. It is difficult to make it. Furthermore, the receiver for wet fire extinguishing has a rectangular shape, it is impossible to swivel the receiver, and a swirl flow cannot be formed. Also, in the case of wet fire extinguishing, the gap formed between the dust collection hood and the wet fire extinguishing receiver is large, and if air is blown out without causing a swirling flow, outside air is drawn more than necessary from the gap. The amount of dust collected becomes excessive. Therefore, the equipment scale of a dust collector and a dust collection fan becomes large, and construction cost increases.

  As described above, the dust collection area and bottom end position of the dust collection hood are usually set according to the dry fire extinguishing body. If the position of the part is lowered, both dry fire extinguishing system and wet fire extinguishing system can efficiently collect dust generated at the time of receiving. However, if a device that changes the dust collection area and a device that changes the position of the lower end of the dust collection hood are individually provided in the dust collection hood, the drive source and drive mechanism of each device are installed in the dust collection hood. Or in the vicinity thereof, and the number of them installed increases. For this reason, the productivity of the coke oven is reduced due to an increase in the frequency of stopping the guide vehicle in order to inspect and repair these devices. For this reason, this means cannot provide a dust collector that can be used in actual production.

  Therefore, in order to reduce the number of drive sources and drive mechanisms installed by simplifying and rationalizing the device that changes the dust collection area and the device that changes the position of the lower end of the dust collection hood. As a result of intensive studies, a single shielding plate is arranged at the lower end of the dust collection hood and is rotatable on the front and rear sides in the traveling direction of the dry fire extinguishing receiver or wet fire extinguishing receiver. By rotating the shielding plate, not only the opening in the traveling direction of the dust collection hood and the dry fire extinguishing receiver but also the vertical opening of the dust collecting hood and the wet fire extinguishing receiver are shielded. As a result, it was found that dust can be collected efficiently in response to both dry fire extinguishing and wet fire extinguishing while suppressing an increase in the frequency of stopping the guide vehicle, and the present invention was completed through further studies. did.

  The present invention relates to a dust collection hood mounted on a guide car of a coke oven, above a dry fire extinguishing receiver or a wet fire extinguishing receiver, and the lower end of the dust collection hood is directly above the upper end of the dry fire extinguishing receiver. When the red coke is dropped and transferred to a dry fire extinguisher, the dry fire extinguisher or wet fire extinguisher is running at the lower end of the dust collection hood. A dust shield is arranged on the front and rear sides of the direction to shield the opening in the traveling direction of the dust collection hood and the dry fire extinguishing receiver to collect the generated dust. In addition, when red hot coke is dropped and transferred to a wet fire extinguishing receiver, a shielding plate is arranged to shield the opening in the vertical direction between the dust collection hood and the wet fire extinguishing receiver. A dust collection method for a guide car of a coke oven, wherein the generated dust is collected.

  Further, the present invention provides a dust hood mounted on a guide car of a coke oven, above a dry fire extinguishing receiver or a wet fire extinguishing receiver, and a lower end portion of the dust collecting hood is an upper end portion of the dry fire extinguishing receiver. When placing red hot coke in a dry fire extinguishing receiver and transferring it to the dry fire extinguishing receiver, it is the lower end of the dust collection hood and the dry fire extinguishing receiver or the wet fire extinguishing receiver. The upper end height of the dry-type fire extinguishing receiver and the upper end of the wet-type fire extinguishing receiver are disposed so as to be rotatable between the front and rear sides in the traveling direction and substantially in the horizontal direction toward the inner side of the dust collection hood. A shielding plate having a height substantially equivalent to the difference from the height of the part is arranged so as to be oriented in a direction substantially coincident with the horizontal direction, and dust generated is collected and red hot coke is supplied to the wet fire extinguishing receiver. If you drop and transfer, the shielding plate should be oriented almost in line with the downward direction. It is placed in a coke oven of the guide wheel of the dust collecting method characterized by the dust collecting the dust generated.

  From another viewpoint, the present invention is mounted on a guide car of a coke oven, and is located above the dry fire extinguishing receiver or the wet fire extinguishing receiver, and the lower end portion is directly above the upper end portion of the dry fire extinguishing receiver. As described above, the dust collection hood and the lower end portion of the dust collection hood, which are rotatably disposed at the front and rear sides in the traveling direction of the dry fire extinguishing receiver or the wet fire extinguishing receiver, are rotated and disposed. By changing the position, the opening in the traveling direction of the dust collection hood and the dry fire extinguishing receiver and the opening in the vertical direction of the dust collection hood and the wet fire extinguishing receiver are both shielded. A dust collecting device for a coke oven guide car, comprising: a shielding plate for rotating the shielding plate, and a drive device for rotating the shielding plate to change the arrangement position.

  According to the present invention, when collecting dust with a dust collecting hood mounted on a guide car in order to collect dust generated when receiving red hot coke, the same guide car is used, and red hot coke is used. Regardless of whether the receiver is a wet fire extinguisher or a dry fire extinguisher, a single shielding plate opens the dust collection hood and the dry fire extinguishing receiver in the travel direction of the receiver. Area and the vertical opening area between the dust collection hood and the wet fire extinguisher can be changed. This allows dry and wet fire extinguishing without significant capital investment. It is possible to efficiently collect dust corresponding to any of the above.

  Further, according to the present invention, the change operation of the area of the opening in the traveling direction of the dust collection hood and the dry fire-extinguishing receiver, and the opening in the vertical direction of the dust collection hood and the wet fire-extinguishing receiver Therefore, it is possible to reduce the frequency of repairing while suppressing an increase in equipment cost.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a two-sided view showing a situation in which corporation using dry fire extinguishing is performed using the dust collector 0 of the present embodiment, and FIG. 2 is a diagram showing receiving using wet extinguishing using the dust collector 0. It is a double view which shows the condition which performs a wreck.

Since the dust collecting device 0 of the guide wheel 2 of the coke oven 1 according to the present embodiment includes the dust collecting hood 4, the first shielding plate 7, and the driving device 9, these components 4, 7 of the dust collecting device 0. , 9 will be described sequentially.
[Dust collection hood 4]
The dust collection hood 4 is mounted on the guide wheel 2 of the coke oven 1 by means commonly known as this type of dust collection hood. The dust collecting hood 4 is located above the dry fire-fighting receiver 3 as shown in FIG. 1 or above the wet fire-fighting receiver 13 as shown in FIG. It arrange | positions so that it may be located just above an upper end part.

That is, the shape of the receiving part of the wet fire-extinguishing receiver 13 of the present embodiment shown in FIG. 2 is 20 m in the traveling direction of the wet fire-extinguishing receiver 13 (right and left directions in FIG. 2), It is a rectangle that is 5 m in a direction orthogonal to the traveling direction (left-right direction in the left diagram of FIG. 2). Since the width of the red hot coke 12 extruded from the carbonization chamber 1 to be received is about 450 mm, in order to load the red hot coke 12 widely and shallowly in the wet fire extinguishing receiver 13, in general, the wet hot coke 12 is wet during extrusion. The fire extinguishing receiver 13 is caused to travel little by little in the traveling direction, and the body is received while gradually shifting the falling point of the red hot coke 12 with respect to the wet fire extinguishing receiver 13. For this reason, although the lower end of the dust collection hood 4 does not necessarily need to cover the entire surface in the traveling direction, in order to efficiently collect dust scattered when receiving a wet fire extinguisher, the traveling direction in the lower portion of the dust collection hood 4 If the opening length is 10 m, the dust collection area at the time of receiving the fire extinguisher is 10 m × 5 m = 50 m ² .

On the other hand, if the shape of the receiving part of the dry fire extinguishing receiver 13 shown in FIG. 1 is 5 m in the running direction and 5 m in the direction orthogonal to the running direction, The dust collection area is 5 m × 5 m = 25 m ² .

  Thus, in this Embodiment, since the length of the receiving part of the direction perpendicular | vertical to a driving | running | working direction is the same as 5 m of both the dry-type fire extinguishing receiver 3 and the wet-fire extinguishing receiver 13, In the description, the dust collection area is replaced with the length of the dust collection area in the traveling direction.

  In the present embodiment, the dust collection hood 4 has a double wall structure having an inner wall 5 and an outer wall 6. The partition plate which is the inner wall 5 is installed in order to increase the dust collecting wind speed at the time of receiving the dry-type fire extinguishing or in order to reinforce the dust collecting hood 4, but unlike the present embodiment, the inner wall 5 is not installed. May be.

  The distance between the outer walls 6 and 6 is adjusted to 10 m, which is the dust collection area when receiving a wet fire. The distance between the inner walls 5 and 5 is set to 5 m, which is the dust collection area when receiving a dry fire. Therefore, when the center between the outer walls 6 and 6 and the center between the inner walls 5 and 5 are set at the same position, the distance between the outer wall 6 and the inner wall 5 is 2.5 m.

Furthermore, although the height of the lower end part of the dust collection hood 4 is matched with the upper end part of the receiver 3 for dry fire extinguishing, it is not necessary to make it correspond in a strict sense and what is necessary is just about the same height.
Since the configuration of the dust collection hood 4 of the present embodiment other than that described above is the same as that of a well-known and commonly used dust collection hood, further explanation is omitted. The dust collection hood 4 in the present embodiment is configured as described above.
[First shielding plate 7]
The first shielding plate 7 in the present embodiment is a height substantially corresponding to the difference between the height of the upper end of the dry fire extinguishing receiver 3 shown in FIG. 1 and the height of the upper end of the wet extinguishing receiver 13 shown in FIG. This is a rectangular plate having a thickness.

  The first shielding plate 7 is a lower end portion of the outer wall 6 of the dust collection hood 4, on the front side and the rear side in the traveling direction of the dry fire extinguishing receiver 3 or the wet fire extinguishing receiver 13. 4 is arranged so as to be rotatable in a substantially horizontal range toward the inner side. Specifically, the first shielding plate 7 is connected to the rod 14 and is rotatably supported in the above range by a hinge 15 disposed at the lower end portion of the outer wall 6 of the dust collection hood 4. Unlike the present embodiment, the first shielding plate 7 may be configured to be rotatably supported by, for example, a crank mechanism. It is not limited to a specific means.

  When the first shielding plate 7 is disposed in the horizontal direction as shown in FIG. 1 by the hinge 15, the opening in the traveling direction of the dry fire extinguishing receiver 3 between the dust collecting hood 4 and the dry fire extinguishing receiver 3. Is shielded, and the dust collection area of the dust collection hood 4 is narrowed. On the other hand, as shown in FIG. 2, when the first shielding plate 7 is rotated around the hinge 15 and arranged in a suspended state, the horizontal opening at the lower portion of the dust collection hood 4 spreads to increase the dust collection area. While becoming wide, the opening part formed in the up-down direction between the dust collection hood 4 and the wet fire extinguishing receiver 13 is shielded.

  In the present embodiment, as shown in FIG. 1, between the outer wall 6 and the inner wall 5, the first shielding plate 7 whose length in the traveling direction of the receivers 3 and 13 is 2 m, and the traveling direction described above. The dust collecting hood 4 and the dry-type fire extinguishing are arranged by continuously arranging the second shielding plate 8 which is 0.5 m in length and fixedly arranged on the inner wall 5 toward the outer wall 6 in the horizontal direction without gaps. The opening in the running direction of the receiver 3 for dry fire extinguishing with the receiver 3 is shielded.

  On the other hand, in the present embodiment, the difference in height between the upper end portions of the dry fire extinguishing receiver 3 and the wet fire extinguishing receiver 13 is 2 m, so the upper end portion of the wet fire extinguishing receiver 13 and the lower end portion of the dust collection hood 4 The height of each opening in the vertical direction is also 2 m.

  The vertical dimension of the first shielding plate 7 is 2 m, which is the same value as the height of the opening in the vertical direction of the wet fire extinguishing receiver 13. On the other hand, the dimension in the horizontal direction of the second shielding plate 8 is (the length required for the dust collection area of the wet fire-extinguishing receiver 13) − (the height of the opening in the vertical direction of the wet fire-extinguishing receiver 13). Determined by the size obtained from the value. When installing the second shielding plate 8, when installing the inner wall 5, it is fixedly installed so as to block the lower opening of the dust collection hood 4 along the inner wall 5 of the dust collection hood 4, and when the inner wall 5 is not installed, dust collection is performed. The outer wall 6 of the hood 4 and the reinforcing material are combined and fixed.

  At the time of wet fire extinguishing, the dust collecting hood 4 and the wet fire extinguishing are made by rotating the first shielding plate 7 around the hinge 15 disposed at the lower end of the outer wall 6 of the dust collecting hood 4 to make it hang down. While shielding the opening part formed in the up-down direction between the receiver 13, the dust collection area can be changed.

  Complementing the opening formed by the difference in height between the lower end of the dust collection hood 4 and the wet fire extinguishing receiver 13, the furnace body itself (the receiving object carbonization chamber 2 side) functions as a wall. Therefore, there is no opening. On the other hand, on the side opposite to the furnace body (reverse furnace side), the length of the surface of the dust collection hood 4 opposite to the furnace body is made longer than the other three surfaces, that is, the lower end of this surface is used for dry fire extinguishing. According to the height of the wet fire extinguishing receiver 13 so as not to interfere with the running of the receiver 3, the opening can be shielded by allowing a slight gap and installing it.

  As described above, the first shielding plate 7 is disposed at the lower end portion of the dust collecting hood 4 so as to be rotatable at the front and rear sides in the traveling direction of the dry fire extinguishing receiver 3 or the wet fire extinguishing receiver 13. By rotating and changing the arrangement position, the opening of the dust collection hood 4 and the dry fire extinguishing receiver 3 in the traveling direction of the receivers 3 and 13, and the dust collection hood 4 and the wet fire extinguishing receiver All the openings in the vertical direction with 13 are shielded.

The 1st shielding board 7 in this Embodiment is comprised as mentioned above.
[Drive device 9]
The driving device 9 rotates the first shielding plate 7 rotatably disposed on the lower end portion of the outer wall 6 of the dust collecting hood 4 via a hinge 15 by driving a rod 14 connected to the hinge 15. It is an apparatus for moving and thereby changing the arrangement position of the first shielding plate 7.

  The drive type of the drive device 9 may be any of a hydraulic type, a pneumatic type, and an electric type, and is not limited to a specific drive type. The driving device 9 only needs to be able to rotate the first shielding plate 7 via the hinge 15 by driving the rod 14 in the axial direction.

  The drive device 9 is provided with a limit switch 10 that detects opening / closing or raising / lowering of the first shielding plate 7. An opening / closing signal or upper / lower limit signal of the limit switch 10 is transmitted to the receiver 3, 13, and the receiver 3. By using the interlock signal in the collection of the body 13 and the dust collection work, dust collection by the dust collection hood 4 mounted on the same guide vehicle in dry fire extinguishing and wet fire extinguishing can be performed safely and with high efficiency. it can.

Examples of these interlock signals are as follows.
Open signal: The dry fire extinguishing receiver 3 cannot enter below the dust collecting hood 4 mounted on the guide car.
The start of the body collection work in the wet fire extinguishing receiver 13 and the dust collection work by the dust collection hood 4 are permitted.
Close signal: The dry fire extinguishing receiver 3 can enter below the dust collecting hood 4 mounted on the guide wheel.

The start of the body collection operation by the wet fire extinguishing receiver 13 and the dust collection operation by the dust collection hood 4 are not permitted.
Furthermore, in order to be able to select the opening / closing operation or raising / lowering operation of the 1st shielding board 7 with the receivers 3 and 13 which receive a body, it performs by remote control in a guide vehicle driving room or a ground operation room.

  The dust collector 0 of this Embodiment is comprised as mentioned above. Next, a method for collecting dust in the guide car of the coke oven when the red hot coke 12 is dropped and transferred using the dust collecting device 0 will be described with reference to FIGS. The wet fire extinguishing receiver 13 will be described in this order.

  As shown in FIG. 1, the guide wheel 2 is moved to the receiving object carbonization chamber 1, and the dry fire extinguishing receiver 3 is moved below the dust collection hood 4 mounted on the guide wheel 2. At this time, it is confirmed by a signal from the limit switch 10 installed in the driving device 9 that the first shielding plate 7 is arranged in the horizontal direction as shown in FIG. Then, by allowing the dry fire extinguishing receiver 3 to enter below the dust collecting hood 4, the dust collecting hood 4 mounted on the guide wheel 2 of the coke oven is placed above the dry fire extinguishing receiver 3. 4 is arranged so that the lower end of 4 is located directly above the upper end of the dry fire extinguishing receiver 3.

  In this way, the first shielding plate 7 which is disposed at the lower end portion of the dust collection hood 4 and at the front and rear sides in the traveling direction of the dry fire extinguishing receiver 3 can be used as the dust collection hood 4 and the dry fire extinguishing. It arrange | positions so that the opening part to a traveling direction with the receiver 3 may be shielded, the red hot coke 12 is dropped and transferred to the dry fire extinguishing receiver 3, and the dust which generate | occur | produces from the red hot coke 12 is the range of the inner wall 5 Thus, the suction dust is collected by the suction duct 11 of the dust collection hood 4. In this way, the corpse in dry fire extinguishing can be performed reliably and with high efficiency.

  Next, as shown in FIG. 2, the guide wheel 2 is moved to the receiving object carbonizing chamber 1, and the wet fire extinguishing receiver 13 is moved under the dust collection hood 4 mounted on the guide wheel 2. At this time, before starting to receive the body, the rod 14 of the driving device 9 is operated on the first shielding plate 7 installed between the inner wall 5 and the outer wall 6 of the dust collecting hood 4, and each is installed in the driving device 9. After confirming that the first shielding plate 7 is rotated about the hinge 15 and arranged so as to be directed vertically downward as shown in FIG. Start dust. That is, at the time of receiving and collecting dust, the first shielding plate 7 is disposed so as to shield the opening in the vertical direction between the dust collecting hood 4 and the wet fire extinguishing receiver 13.

  When receiving the corpse, the red hot coke 12 is dropped and transferred to the wet fire extinguishing receiver 13, and the dust generated from the red hot coke 12 is sucked and collected in the range of the outer wall 6 by the suction duct 11 of the dust collecting hood 4. To do. In this way, receiving in dry fire extinguishing can be performed reliably and efficiently.

  According to the present embodiment, the horizontal hood opening area in the lower part of the dust collecting hood 4 and the vertical opening area of the receivers 3 and 13 are provided on the dust collecting hood 4. 1 can be changed by rotating the shielding plate 7. For this reason, dust generation when the red hot coke 12 is dropped and transferred to both the dry fire extinguishing receiver 3 and the wet fire extinguishing receiver 13 having different receiving area and upper end height. Can be collected with high efficiency without significant capital investment.

  Moreover, by rotating the 1st shielding board 7, the opening part area formed between the dry-type fire extinguishing receptacle 3 to the horizontal direction of the lower part of the dust collection hood 4, and the wet extinguishing receptacle 13 and The opening area in the vertical direction formed between the two can be changed, and the two changing operations can be performed by one driving device, thereby reducing the cost of the device and reducing the repair frequency. . Furthermore, both dry fire extinguishing system and wet fire extinguishing system can efficiently collect dust generated at the time of receiving.

It is a two-plane figure which shows the condition which performs the corpse using dry fire extinguishing using the dust collector of embodiment. It is a two-plane figure which shows the condition which performs the corpse using wet fire extinguishing using the dust collector of embodiment.

Explanation of symbols

0 Dust collector 1 Charging target carbonization chamber 2 Guide car 3 Dry fire receiver 4 Dust collection hood 5 Inner wall 6 Outer wall 7 First shield plate 8 Second shield plate 9 Drive unit 10 Limit switch 11 Suction duct 12 Red heat coke 13 Wet fire extinguishing receiver 14 Rod 15 Hinge

Claims (3)

The dust collection hood mounted on the guide car of the coke oven is positioned above the dry fire extinguishing receiver or wet fire extinguishing receiver, and the lower end of the dust collection hood is positioned directly above the upper end of the dry fire extinguishing receiver. Arranged to
When red hot coke is dropped and transferred to the dry fire extinguishing receiver, it is rotated at the lower end of the dust collecting hood and forward and backward in the running direction of the dry fire extinguishing receiver or the wet fire extinguishing receiver. A movably arranged shielding plate is arranged so as to shield the opening in the traveling direction of the dust collection hood and the dry fire extinguishing receiver, and collects generated dust.
When transferring red hot coke to the receiver for wet fire extinguishing, the shielding plate is arranged so as to shield the opening in the vertical direction between the dust collecting hood and the receiver for wet fire extinguishing. Then, the dust collection method of the guide car of the coke oven characterized by collecting the generated dust. The dust collection hood mounted on the guide car of the coke oven is positioned above the dry fire extinguishing receiver or wet fire extinguishing receiver, and the lower end of the dust collection hood is positioned directly above the upper end of the dry fire extinguishing receiver. Arranged to
When red hot coke is dropped and transferred to the dry fire extinguishing receiver, it is substantially the lower end of the dust collection hood and on the front and rear sides of the dry fire extinguishing receiver or the wet fire extinguishing receiver. The upper end height of the dry-type fire extinguishing receiver and the upper end height of the wet-type fire extinguishing receiver are arranged so as to be rotatable between a downward direction and a substantially horizontal direction toward the inside of the dust collection hood. A shielding plate having a height substantially corresponding to the difference is disposed so as to be directed in a direction substantially coincident with the horizontal direction, and dust generated is collected,
In the case where red hot coke is dropped and transferred to the wet fire extinguishing receiver, the shielding plate is arranged so as to be oriented substantially coincident with the downward direction, and the generated dust is collected. Coke oven guide car dust collection method. Dust collection hood that is mounted on the guide car of the coke oven and is arranged above the dry fire extinguishing receiver or wet fire extinguishing receiver so that the lower end is located directly above the upper end of the dry extinguishing receiver When,
The dust collecting hood is rotatably disposed at the front and rear sides in the traveling direction of the dry fire extinguishing receiver or the wet fire extinguishing receiver, and is rotated to change the position of the collection. A shielding plate for shielding both the opening in the traveling direction of the dust hood and the dry fire extinguishing receiver and the opening in the vertical direction of the dust collecting hood and the wet extinguishing receiver; ,
A dust collector for a guide car of a coke oven, comprising: a driving device for rotating the shielding plate to change the arrangement position.

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