JP5211705B2 - Coke oven fire extinguisher - Google Patents

Description

  The present invention relates to a coke oven fire extinguisher used in an ironworks or the like, and more particularly to the structure of a bottom plate and a draining plate of a coke oven fire extinguisher.

  Coke used as a raw material for iron making or the like is manufactured by a coke oven in which a carbonization chamber for dry distillation of coal and a combustion chamber for burning fuel gas are alternately arranged to form a furnace group. In such a coke oven, there are a charcoal vehicle for charging coal, an extruder for extruding the manufactured coke from the carbonization chamber, a moving vehicle such as a guide vehicle and a fire extinguisher for receiving the extruded coke, The red hot coke that has been carbonized and extruded in is received by a fire extinguisher, and then the fire extinguisher is moved to a fire extinguisher to sprinkle fire and cool.

  The bottom of the coke receiving tank, which is the part that receives the coal of the coke oven fire extinguisher, has a slope so that the coke flows easily when receiving coke, the coke flow direction, and the coke oven extinguisher traveling direction Many are arranged in parallel with a gap (for example, about 5 mm when cold). And it has the structure where the bowl-shaped draining board was attached to the lower part of the baseplate (for example, refer patent document 1). Generally, the bottom plate is a structure fixed to the coke oven fire extinguisher main body together with the draining plate.

The cooling water sprayed on the coke in the fire extinguisher falls from the gap between the bottom plate and the bottom plate (joint portion) and can be received by the draining plate. The water received by the draining board flows through the draining board and is collected.
Japanese Patent Laid-Open No. 5-287276 (Page 4, FIGS. 2 and 3)

  The bottom of the coke receiving tank of the coke oven fire extinguisher has a structure composed of the bottom plate and the draining plate as described above. Since the bottom plate is worn by coke falling directly on the bottom plate, it is necessary to update it as appropriate.

  When the bottom plate is fixed together with the drain plate, when performing the renewal work of such a degraded bottom plate, it is necessary to remove the drain plate installed on the entire lower surface of the bottom plate over a wide area, Is troublesome and expensive. As a result, there is a problem that the cost and the construction period for the renewal work of the bottom plate increase more than necessary, and the operation efficiency of the coke oven also decreases.

  The problem that the cost of the renewal work due to the wear of the bottom plate of the coke receiving tank of the coke oven fire extinguisher cannot be solved by the conventional technology.

  Accordingly, an object of the present invention is to solve such problems of the prior art, and in a coke oven fire extinguisher having a bottom plate and a draining plate, the bottom plate can be repaired and replaced at a low cost. To provide a car.

The features of the present invention for solving such problems are as follows.
(1) A coke oven fire extinguisher that moves along the longitudinal direction of the coke oven to transfer and cool red hot coke produced in the coke oven, the coke oven extinguisher receiving the red hot coke. And the bottom of the coke receiving tank is composed of a plurality of flat bottom plates and draining plates installed at the bottom of the bottom plate, and the bottom plates are inclined in a direction perpendicular to the advancing direction of the coke oven fire extinguisher. And the side adjacent to the coke oven has a slope that becomes higher, and is arranged so as to be spaced apart from each other in the traveling direction of the fire extinguisher (longitudinal direction of the coke oven). And in the direction of the inclination (direction perpendicular to the traveling direction of the fire extinguisher), a plurality of plate-like bottom plates have a structure in which ends are overlapped so that the bottom plate at a high position is on the upper side ,
A coke oven fire extinguisher, wherein the draining plate is installed below the gap without installing a draining plate on the entire lower surface of the bottom plate.
( 2 ) The direction of the inclination is a coke flow direction. As the bottom plate, a bottom plate having high wear resistance is used on the upstream side in the coke flow direction, and the wear resistance is low on the downstream side in the coke flow direction. The coke oven fire extinguisher according to (1), wherein a bottom plate is used.
(3) The coke oven fire extinguishing according to (1) or (2), wherein a plurality of bottom plates having different wear resistance can be used as the bottom plate to make the life of the bottom plate uniform. car.

  According to the present invention, in a coke oven fire extinguisher having a bottom plate and a draining plate, the production cost of the bottom plate and the draining plate can be reduced, and the repair and replacement of the bottom plate can be easily performed. Replacement work can be performed at low cost.

  For this reason, the operating efficiency of the coke oven is also improved.

  One Embodiment of the coke oven fire extinguisher of this invention is described using FIGS. 1-4.

  FIG. 1 is a schematic view of cross sections of a coke oven and a coke oven fire extinguisher when extruding red hot coke from the coke oven, and the direction perpendicular to the paper surface is the longitudinal direction of the coke oven, and the coke oven fire extinguisher 1 proceeds. Direction. The red hot coke 4 extruded from the coke oven 2 using the extruder 3 is charged into the coke receiving tank 6 of the coke oven fire extinguisher 1 through the guide wheel 5. A bottom plate 7 is installed at the bottom of the coke receiving tank 6, and a bowl-shaped draining plate 8 is installed below the bottom plate 7. The extruded red hot coke 4 first falls to the upper part of the bottom plate 7 in the coke receiving tank 6 (right end portion in FIG. 1: upstream side) and follows the inclination of the bottom plate 7 (lower left end portion in FIG. 1: downstream side). ) Is charged with coke flow. The inclination of the bottom plate is an inclination in a direction perpendicular to the traveling direction of the coke oven fire extinguisher, and is an inclination where the side adjacent to the coke oven becomes higher.

  FIG. 2 is a top view of the bottom plate 7 of FIG. Arrow A is the traveling direction of the fire extinguisher, and arrow B is the coke flow direction. The bottom plate 7 is composed of a set of a plurality of bottom plates, and is divided into a bottom plate 7a and a bottom plate 7b in the coke flow direction B. The fire extinguishing vehicle traveling direction A is divided into three parts in FIG. 2 for the sake of simplicity, but in an actual fire extinguishing car, the fire extinguishing car traveling direction A is composed of tens of bottom plates.

  3 is a cross-sectional view of the side surface of FIG. 2 taken from a direction perpendicular to the traveling direction A of the fire extinguisher of FIG. The bottom plates 7a and 7b are installed with a step so that the bottom plate 7b is on top and the end portions are overlapped.

  4 is a cross-sectional view in the A direction of FIG. 2, and is a cross-sectional view at a CC position in FIGS. 2 and 3. The bottom plate 7 is installed with a gap, and a draining plate 8 is installed below the gap (joint) 9 portion.

  The coke oven fire extinguisher of the present invention has a structure in which the bottom plate has joints only in the coke flow direction as described above (structure having only joints in a direction perpendicular to the coke oven fire extinguishing vehicle traveling direction), and only in the lower part of the joints. A draining board is installed. Since there is no joint in the coke oven fire extinguisher traveling direction, installation of the draining plate can be omitted, and the installation range of the draining plate can be limited to the lower part of the joint. The cost of the board can be reduced. In addition, this makes it possible to greatly reduce the labor for repairing and replacing the bottom plate, and to reduce the cost for repairing and replacing the bottom plate.

  Further, the bottom plate is constituted by a plurality of sheets in the coke flow direction, each bottom plate has an overlap at the end portion, and the upstream side plate in the coke flow direction is overlaid on the downstream side bottom plate. Therefore, it eliminates joints perpendicular to the coke flow direction and smoothes the coke flow on the bottom plate, and it is easy to remove and replace only the bottom plate on the upstream side of the coke flow with high degree of wear. Become. On the downstream side in the coke flow direction, the bottom plate is worn due to the sliding wear caused by the coke flow. On the other hand, at the upstream side in the coke flow direction, the bottom plate is severely worn by the impact of the red hot coke falling, and the degree of wear is greater than at the downstream side.

  Also, by using bottom plates with different wear resistance, that is, using a bottom plate with high wear resistance on the upstream side in the coke flow direction and a bottom plate with low wear resistance on the downstream side in the coke flow direction. It becomes possible to make the life of the bottom plate uniform.

  In the above embodiment, the case where the bottom plate is divided into two in the coke flow direction (two bottom plates) is shown, but the number of divisions in the coke flow direction of the bottom plate can also be 3 or more, and the coke flow direction is more It is possible to respond finely to changes in the degree of wear of the bottom plate. Practically, splitting into two is preferable because the cost is low and the bottom plate can be easily replaced.

  On the other hand, in the conventional coke oven fire extinguisher, the bottom plate also has joints in the direction perpendicular to the coke flow direction. An example of a conventional coke oven fire extinguisher is shown in FIGS.

  FIG. 5 is a top view of the bottom plate 7. Arrow A is the traveling direction of the fire extinguisher, and arrow B is the coke flow direction. The bottom plate 7 is composed of a set of a plurality of bottom plates, and is divided into nine bottom plates 7 a to 7 i in the coke flow direction B. The fire extinguisher traveling direction A is divided into three parts, but in the actual fire extinguisher, as in the case of FIG.

  6 is a cross-sectional view of the side surface of FIG. 5 from a direction perpendicular to the traveling direction A of the fire extinguisher of FIG. A draining plate 8 is installed below the bottom plate 7.

  7 is a cross-sectional view in the A direction of FIG. 5, and is a cross-sectional view at a CC position in FIGS. 5 and 6. The bottom plate 7 is installed with a gap, and a draining plate 8 is installed below the bottom plate 7.

  FIG. 8 is a perspective view of the bottom plate portion of FIGS. The bottom plate 7 is fixed to a part 11 of the main body of the coke oven fire extinguisher with bolts 10 together with the draining plate 8 at the bottom.

  That is, in the prior art, the bottom plate has a large number of joints in both the coke oven fire extinguisher traveling direction and the coke flow direction, and a draining plate is installed in the entire lower portion of the bottom plate 7. In order to repair and replace the worn and damaged bottom plate 7, it is necessary to remove and tighten a large number of bolts 10.

  Therefore, by using the coke oven fire extinguisher of the present invention, it is possible to reduce the installation area of the draining plate as compared with the conventional coke oven fire extinguisher, so that the cost for the production cost can be reduced and the repair of the bottom plate・ Replacement can be done easily.

  Moreover, the coke oven fire extinguisher of the present invention can be implemented at low cost only by modifying the bottom plate and draining plate of the conventional coke oven fire extinguisher.

  As a coke oven fire extinguisher, the bottom plate is divided into 21 parts in the traveling direction of the fire extinguisher and divided into 10 parts in the coke flow direction. A coke oven was used to operate the product.

  The coke oven fire extinguisher is divided into 21 parts in the traveling direction of the fire extinguisher and two parts in the coke flow direction, as shown in FIGS. A draining plate was installed in the structure, and the area of the draining plate was changed to about half of the conventional one.

  The joint part of the bottom plate becomes only the coke flow direction, and the production cost and installation cost of the draining plate are reduced.

Schematic of the cross section of a coke oven and a coke oven fire extinguisher. The top view of a bottom board (example of the present invention). Sectional drawing of the side surface of a baseplate (example of this invention). Sectional drawing of the baseplate in the advancing direction of a fire extinguisher (example of this invention). The top view of a baseplate (conventional example). Sectional drawing of the side surface of a baseplate (conventional example). Sectional drawing of the baseplate in the advancing direction of a fire extinguisher (conventional example). It is a perspective view of a baseplate part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Coke oven fire extinguisher 2 Coke oven 3 Extruder 4 Red hot coke 5 Guide car 6 Coke receiving tank 7 (7a-7i) Bottom plate 8 Drain plate 9 Gap of the bottom plate (joint)
10 Volts 11 Part of the main body of the coke oven fire extinguisher A Advancing direction of the fire extinguisher B Coke flow direction C Cross-sectional position

Claims (3)

A coke oven fire extinguisher that moves along the length of the coke oven to transfer and cool red hot coke produced in the coke oven,
The coke oven fire extinguisher has a coke receiving tank that receives the red hot coke,
The bottom of the coke receiving tank is composed of a plurality of flat bottom plates and a draining plate installed at the bottom of the bottom plate,
The bottom plate is inclined in a direction perpendicular to the traveling direction of the coke oven fire extinguisher, and has an inclination that becomes higher on the side adjacent to the coke oven, and in the traveling direction of the fire extinguisher (longitudinal direction of the coke oven) By arranging them so as to be spaced apart from each other, there is a gap only in the direction of the inclination, and in the direction of inclination (a direction perpendicular to the traveling direction of the fire extinguisher), a plurality of so that the bottom plate at a higher position is on the upper side The plate-shaped bottom plate has a structure in which ends are overlapped,
A coke oven fire extinguisher, wherein the draining plate is installed below the gap without installing a draining plate on the entire lower surface of the bottom plate. The direction of the inclination is a coke flow direction, and as the bottom plate, a bottom plate having high wear resistance is used on the upstream side in the coke flow direction, and a bottom plate having low wear resistance is used on the downstream side in the coke flow direction. The coke oven fire extinguisher according to claim 1. The coke oven fire extinguisher according to claim 1 or 2, wherein a plurality of bottom plates having different wear resistance are used as the bottom plate, whereby the life of the bottom plate can be made uniform.

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