JPH0754279Y2 - Free structure of coke dry fire extinguisher - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a free structure for a coke dry fire extinguisher.

[Conventional technology]

There is known a coke dry fire extinguisher that extinguishes red hot coke discharged from a coke oven with an inert gas and effectively uses exhaust heat generated at this time.

This coke dry fire extinguisher has an upper pre-chamber 1 and a cooling chamber 2 as shown in a schematic vertical sectional view in FIG.
And the lower gas blowing device 3. The red hot coke 6 is charged from the coke bucket 5 into the fire extinguisher 4, and while the red hot coke 6 descends in the fire extinguishing furnace 4, the gas blower 3 blows the red hot coke 6 into the fire extinguishing furnace 4. The active gas extinguishes the red hot coke 6.

The extinguished coke is sequentially cut out from the fire extinguishing furnace 4 by a cutting device 7 provided in the lower part of the fire extinguishing furnace 4. On the other hand, the high temperature inert gas after extinguishing the red hot coke 6 is sent to the exhaust heat boiler 8 from the gas exhaust port 9 provided in the upper inner wall of the cooling chamber 2 through the free air 10 and the exhaust heat is effective. Used for.

Recently, as the size of the above-described fire extinguishing equipment increases, the flow velocity of the inert gas blown into the fire extinguishing furnace 4 increases, and as a result, coke flows from the gas outlet 9 into the frieux 10 and accumulates, resulting in pressure loss. The problem of increase has arisen. Therefore, the inside of the free 10 is partitioned by a partition brick 11 in the flow direction of the inert gas, and the gas discharge port 9 is divided into upper and lower stages to prevent the flow of coke into the free 10.

FIG. 4 is an enlarged vertical sectional view of the upper portion of the fire extinguishing furnace 4. As shown in FIG. 4, an annular chamber 12 is formed in the wall of the pre-chamber 1, and the chamber 12 is the cooling chamber 2.
An annular free 10 communicates with a gas discharge port 9 which is annularly provided on the inner wall of the upper part of the. 13 is the chamber 12
A pillar brick for supporting the load of the bricks constituting the ring-shaped bricks 10 that divides the annular free 10 at predetermined intervals in the circumferential direction.

In Fig. 5, as shown in the enlarged view of the arrow A in Fig. 4, pillar bricks are used.
The partition bricks 11 that partition the inside of each free space 10 between 13 and 13 into two stages in the flow direction of the inert gas are the bricks 13 and 13 with the mortar 14 on the side walls 11a and 11a. It is fixed to the pillar bricks 13 and 13 by bonding.

[Problems to be solved by the device]

As described above, the partition brick 11 that partitions the inside of the free 10 in two stages in the flow direction of the inert gas is supported by being adhered to the pillar bricks 13 and 13 with the mortar 14 to form an integral structure with the pillar bricks 13 and 13. Has become.

The partition bricks 11 and the pillar bricks 13 are exposed to severe temperature and load conditions. In particular, the pillar bricks 13 are subjected to an unbalanced load of the bricks forming the chamber 12 and are also partition bricks.
Since it is combined with 11, it has less freedom of deformation as a structure.

Therefore, when the partition brick 11 expands, a large stress is applied to the pillar brick 13. Mortar 14 is interposed between the partition bricks 11 and the pillar bricks 13. However, expansion and contraction of the partition bricks 11 cause coke dust to invade the mortar 14 portion, so that the mortar 14 becomes a rigid body.

As a result, the pillar bricks 13 drop out or overhang, and
The problem that 13 is damaged occurs.

Therefore, an object of the present invention is to provide a frieu structure in which a pillar brick supporting a partition brick of an inert gas discharging frie in a coke dry fire extinguisher does not suffer damage such as dropout or overhang due to expansion of the partition brick. Especially.

[Means for Solving the Problems]

This invention is provided with a plurality of annularly provided in the upper wall of a coke dry fire extinguisher for discharging inert gas after extinguishing the red hot coke in the fire extinguishing furnace, at a predetermined interval in the circumferential direction. In a fried structure of a coke dry fire extinguisher, which is divided into at least two stages in the flow direction of the inert gas by partition bricks having both ends attached between the column bricks, both ends of the partition bricks are formed. The end face of the imposing brick that is in contact with the pillar brick is doubly covered with a ceramic sheet and a steel plate having a predetermined thickness, and mortar is filled between the outermost steel plate of the end face and the pillar brick. It is characterized by the fact that

Next, the invention will be described with reference to the drawings. FIG. 1 is a schematic front view showing an embodiment of the fried structure of the present invention, and FIG. 2 is an enlarged schematic front view showing a joint portion between an imposing brick and a pillar brick. Pillar brick 1 as shown in the drawing
The partition bricks 11 that partition the interior of the free space 10 between the spaces 3 and 13 in the flow direction of the inert gas are the bricks 11a and 11a at the both ends in the width direction.
The end portion of a is engaged with the step portions 13a, 13a of the pillar brick 13 to be supported by the pillar bricks 13, 13.

The end faces of the imposing bricks 11a, 11a in contact with the pillar bricks 13, 13 are covered with a ceramic sheet 15 having a predetermined thickness, and the surface of the ceramic sheet 15 is covered with a steel plate 16 having a predetermined thickness. . The mortar 14 is filled between the steel plate 16 and the pillar bricks 13, 13.

In the example shown in the figure, the vertical surfaces of the imposing bricks 11a, 11a in contact with the pillar bricks 13, 13 are the ceramic sheet 15 and the steel plate 16 described above.
The lower surface of the pillar bricks 13, 13 which is in contact with the step portions 13a, 13a of the pillar bricks 13 is covered only by the steel plate 16.
It may be covered by 15 and steel plate 16.

[Action]

According to this invention, as described above, the pillar bricks 13, 13 of the receiving bricks 11a, 11a forming the widthwise both ends of the partition brick 11,
The end surface in contact with the ceramic sheet 15 and steel plate with a predetermined thickness
The steel plate 16 is double-coated with 16 and the mortar 14 filled between the steel plate 16 and the pillar bricks 13, 13 makes the steel plate 16
It is fixed at 3,13.

Therefore, as a result of the expansion of the partition bricks 11 being absorbed by the ceramic sheet 15, the pillar bricks 13 and 13 are not stressed, and accordingly, the pillar bricks 13 and 13 are appropriately prevented from being damaged.

The steel plate 16 has a function of protecting the ceramic sheet 15 and smoothly absorbing the expansion of the partition brick 11 by the ceramic sheet 15.

Next, this invention will be described with reference to examples.

〔Example〕

Partition bricks 11 that divide the free 10 having a width a of 910 mm in two stages in the flow direction of the inert gas.
The end faces of 11a, 11a in contact with the pillar bricks 13, 13 are provided with a ceramic sheet 15 with a thickness of 1.5 mm and a stainless steel plate with a thickness of 1.0 mm (S
US304) 16 and the mortar 14 was filled in the gap between the stainless steel plate 16 and the pillar bricks 13, 13 with a width of 2 mm.

As a result, the expansion amount of the partition brick 11 was 3.64 mm (expansion rate: 0.4 / 1
00) could be completely absorbed by the ceramic sheet 15 and the mortar 14, and the partition brick 11 was not damaged by falling off or overhanging.

[Effect of device]

As described above, according to the present invention, the pillar bricks supporting the partition bricks of the inert gas discharging frie in the coke dry-type fire extinguisher do not cause damage such as dropping or overhang due to expansion of the partition bricks. Industrially useful effects are provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic front view showing an embodiment of the present invention, and FIG.
The figure is an enlarged schematic front view showing the joint between the imposing brick and the pillar brick, FIG. 3 is a schematic vertical sectional view of the coke dry fire extinguisher, and FIG. 4 is an enlarged vertical sectional view of the upper part of the fire extinguisher. [Fig. 4] is a view on arrow A in Fig. 4. In the drawings, 1 ... Pre-chamber, 2 ... Cooling chamber, 3 ... Gas blowing device, 4 ... Fire extinguishing furnace, 5 ... Coke bucket, 6 ... Coke,
7 ... Cutting device, 8 ... Exhaust heat boiler, 9 ... Gas discharge port, 10
… Frew, 11… partition bricks, 11a… commitment bricks, 12…
Chamber, 13 ... Pillar brick, 14 ... Mortar, 15 ... Ceramic sheet, 16 ... Steel plate.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Kazutoshi Matsumoto, Marunouchi, 1-2, Chiyoda-ku, Tokyo Nihon Steel Pipe Co., Ltd. No. 2 Nihon Kokan Co., Ltd. (72) Inventor Shigeru Takehara 2448-4 Nissei-cho, Wake-gun, Okayama Prefecture (72) Inventor Yoshihiro Fushii 460-9 Hattori, Nagafune-cho, Oku-gun, Okayama Prefecture (72) Koichi Kawakami 1020 Shibuya, Bizen City, Okayama Prefecture

Claims (1)

[Scope of utility model registration request] 1. A plurality of frying for discharging an inert gas after extinguishing the red hot coke in the fire extinguishing furnace, which is annularly provided in an upper wall of the coke dry fire extinguisher and partitions the circumferential direction at predetermined intervals. In a fried structure of a coke dry fire extinguisher, which is divided into at least two stages in the flow direction of the inert gas by partition bricks having both ends attached between individual pillar bricks, both ends of the partition bricks are formed. The end surface of the exposed brick that contacts the pillar brick is double-coated with a ceramic sheet and a steel plate having a predetermined thickness, and mortar is filled between the steel plate and the pillar brick on the outermost surface of the end surface. Free structure of coke dry fire extinguisher, characterized by being