JPH0726266A - Apparatus for discharging oven front coke from coking chamber of coke oven - Google Patents

Abstract

PURPOSE:To mechanize the work for discharging oven front coke from the coking chamber of a coke oven. CONSTITUTION:This apparatus consists of a carriage 5 which travels on the deck 3 in front of the oven of a coking chamber of a coke oven 1, a lifting frame 7 which rises and falls along a guide post 6 formed on the carriage 5, an air breaker 11 which moves back and forth in the direction of the inlet of the oven along the guide frame 9 formed on the lifting frame 7 and a rod-like cold chisel 13 fit on the air breaker 11. Because the air breaker 11 is adapted so that it may freely rise and fall and freely move back and forth, the oven front coke can be pushed and broken and discharged from the oven front.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coke discharging device in front of a coke oven kiln in a coke oven.

[0002]

2. Description of the Related Art Generally, in a coke oven, after the coal charged in the carbonization chamber is heated and carbonized for about 17 to 24 hours, the generated coke is discharged from the extruder side (machine side) by a coke guide car. It is extruded toward the side (coke side). In the above coke oven operation, the resistance at the time of extrusion sometimes increases, and normal extrusion becomes difficult. The causes are 1) adhesion and growth of carbon with a certain thickness or more on the carbonization chamber wall, 2) poor coke shrinkage due to the existence of a low temperature part at the kiln, and 3) wall irregularity due to damage to the carbonization chamber brick. This is due to insufficient formation of a certain amount of clearance (gap) between the carbonization chamber wall surface and the carbonization coke lump due to the presence or the like.

In order to prevent the occurrence of such a problem, the techniques of Japanese Patent Laid-Open Nos. 1-247483, 3-162489 and 4-77596 have been proposed in the related art, and the push-out force is measured by measuring the push-out current. It has been proposed to monitor the amount of carbon deposited in the carbonization chamber from the extrusion current and to predict the next extrusion force based on past information, but these are of great value as guidelines for coke oven operation. However, once there was a jam, there was no other way but to eliminate it due to human power.

[0004] When such a clogged state occurs, conventionally, an operator bathes the radiant heat from the red hot coke at about 1000 ° C in front of the kiln opening of the carbonization chamber, and the tip of about 3 to 5 m long is processed into a spatula shape. Use a steel bar to push out the coke lumps, discharge the coke lumps stuck in the charcoal chamber kiln mouth onto the deck in front of the kiln mouth, then extinguish the water with a scoop into the dry fire (CDQ) bucket. A certain amount (1 to 2 from the kiln)
The actual situation is that the coke is being scraped (up to m deep).

[0005]

In the conventional work method as described above, an operator standing in front of the opening of the charring chamber kiln and pushing the red hot coke with a stick pushes the kiln during the radiant heat from the red hot coke and the pushing. The risk of burns due to the collapse of the coke in the upper part of the mouth, the red-hot coke that had been broken down on the platform in front of the kiln was sprayed with water, and then CDQ with a scoop after extinguishing the fire.
There was a problem in that when it was put into a bucket, there was a risk of being burned by the hot water accumulated on the platform.

The present invention solves the above problems of the prior art,
The purpose is to mechanize a series of coke handling processes of pushing down the coke in the carbonization chamber kiln and receiving, digesting and discharging the coke discharged from the kiln.

[0007]

The present invention according to claim 1 for achieving the above object comprises a carriage that can run on the front deck of the coke oven kiln mouth, and a guide post provided on the carriage. Equipped with an elevating frame that moves up and down, an air breaker that can move forward and backward in the direction of the kiln along a guide frame provided on this elevating frame, and a rod-shaped chisel that is attached to this air breaker and that pushes out the coke. This is a coke discharge device in front of the kiln mouth of the coke oven of the coke oven.

The invention according to claim 2 is characterized in that a front coke receiving box provided with a water spraying and discharging nozzle is arranged on the carriage so as to be tiltable, and in front of the coke oven kiln opening of the coke oven according to claim 2. It is a coke discharging device.

[0009]

According to the present invention, the bogie is run vertically and horizontally on the front deck of the charring chamber kiln, and the raising and lowering of the elevating frame along the gust post is combined with the forward and backward movement of the air breaker along the guide frame. The kiln mouth coke can be automatically discharged by remote operation without requiring human power, and coke can be pushed out of the coking chamber by eliminating clogging of coke in the coking chamber.

Further, a coke receiving box in front of the kiln is arranged on the trolley, and the coke discharged from the front of the kiln in the carbonization chamber is received in this box by spraying water from the sprinkling and extinguishing nozzle to extinguish the fire, and then tilting to C
If it is discharged to a DQ bucket or the like by remote control, the work can be performed safely and efficiently.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a side view of the device of the present invention, FIG. 2 is a front view,
Further, FIG. 3 is a plan view, and in FIGS. 1 to 3, a truck 5 is freely movable on wheels 5a by a traveling device 20 with a brake on a track 4 laid on a deck 3 in front of a kiln of the coke oven 1. It is provided in. A guide post 6 is mounted on this trolley 5.
Is provided, and an elevating frame 7 is set on the guide post 6 so as to be able to ascend and descend via rollers (not shown).

An elevating cylinder 8 supported by a guide post 6 is connected to the elevating frame 7, and the elevating frame 7 is moved along the guide post 6 by expanding and contracting the elevating cylinder 8.
Moves up and down. A guide frame 9 is provided on the elevating frame 7, and an air breaker support 10 that can move forward and backward along the guide frame 9 in the direction of the kiln is provided on the guide frame 9.
Is provided. Then, when the forward / backward movement cylinder 32 fixed to the guide frame 9 is extended / contracted to the air breaker support 10, the air breaker 11 mounted on the air breaker support 10 is moved forward / backward. The attached rod-shaped chisel 13 can move toward and away from the front of the kiln.

On the other hand, a chute 31 is mounted on the carriage 5 below the rod-shaped chisel 13 mounted on the air breaker body 11.
And the kiln front coke box 14 is placed and shoot
A plurality of water spray fire extinguishing nozzles 15 are arranged above 31.
Further, a large number of water drainage holes 16 are formed in the bottom of the oven front coke receiving box 14, and tilting is supported by a bearing 17 with one end as a fulcrum. Further, a tilting cylinder 18 attached to the bogie 5 tilts. You can do it. Reference numeral 19 denotes a cradle that supports the front coke box 14 of the kiln.

As shown in FIG. 4, a traverse type traveling mechanism 22 is provided in the lower portion of the carriage 5 to operate a hydraulic cylinder 23, and the wheels 21 (see FIG. 2) are pulled out downward with a bearing 24 as a fulcrum. Or it can be stored. Trolley 5
The hydraulic cylinder 23 is actuated when pulling out / retracting from the storage space at the same level as the deck 3, and when pulling out, after the wheels 21 are landed, the wire is moved by a winch (not shown). This is done by pulling the rope 25 left or right.

5 and 6 show a rollover prevention mechanism 26 for the carriage 5.
By turning the handle 29 screwed into the bearing 28 provided on the frame of the trolley 5 on the kiln mouth back stay 27 of the coke oven, and hooking and fixing the hook metal fitting 30 provided at the tip of the handle 29, It is designed to prevent rollover. Next, the operation of the device of the present invention will be described with reference to FIGS. Of the many carbonization chambers 2 arranged in the coke oven 1, after the carbonization of the coal is completed, when pushing out the red hot coke from the carbonization chamber 2 using an extruder, it is caused by the causes as described in 1) to 3) above. When it becomes difficult to push out due to clogging, the traverse type traveling mechanism 22 is operated to pull out the trolley 5 on which the air breaker body 10 is mounted from the storage location onto the track 4.

The traveling device 20 of the trolley 5 is driven to stop before the kiln of the carbonization chamber where the jam has occurred, and the trolley 5 is stopped by the rollover prevention mechanism 26.
Is fixed to the kiln mouth back stay 27. Then, the lifting cylinder 8 is operated to adjust the height of the air breaker 11 to a position near the lower end of the carbonization chamber 2, for example. Next, forward and backward cylinder
By operating 32, the air breaker 11 is advanced through the air breaker support 10 and applied to the kiln front coke 33 existing at the lower end of the carbonization chamber 2.

The air hammer 12 of the air breaker 11 is actuated while pressing the kiln mouth coke 33 by the forward / backward traveling cylinder 32, and the vibration motion in the longitudinal direction is given to the kiln front coke 33 via the rod-shaped chisel 13. Push it down. By combining the forward movement of the forward / backward movement cylinder 32 and the upward movement of the elevating cylinder 8 while pushing the coke 33 in front of the kiln, the coke 33 in front of the kiln up to a predetermined depth of the carbonization chamber 2 is combined.
Is gradually collapsed from the lower part to the upper part by the rod-shaped chisel 13, and coke can be extruded from the carbonization chamber 2 by the extruder.

The coke 33 thus pushed out from the front of the kiln of the carbonization chamber 2 is received by the coke receiving box 14 before the kiln, and is digested by the water spray from the water spray fire extinguishing nozzle 15. At this time, the water that has entered the receiving box 14 is drained from the water drain hole 16 and when a certain amount of coke before the kiln has accumulated in the receiving box 14, the tilt cylinder
By actuating 18 to tilt the receiving box 14 in a substantially horizontal state about the bearing 17 as a fulcrum as shown by a broken line, the front coke in the receiving box 14 is discharged to the CDQ bucket 34 outside the deck.

In the above embodiment, the air breaker 11 is inclined in the front direction of the kiln of the carbonization chamber 11 so that the front portion is low and the rear portion is high. However, the inclination angle is adjusted by using an appropriate means. It is also possible to adjust.

[0020]

As described above, according to the present invention, the rod-shaped chisel mounted on the air breaker mounted on the carriage so that it can be elevated and lowered and moved forward and backward in the kiln can be pushed down by remote control. , The coke collected in the kiln in front of the kiln is digested by water spray from the water spray fire extinguishing nozzle, and it is possible to discharge the collected coke by tilting the container, improving safety and improving work efficiency. it can.

[Brief description of drawings]

FIG. 1 is a side view of the device of the present invention.

FIG. 2 is a front view of the device of the present invention.

FIG. 3 is a plan view of the device of the present invention.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a plan view showing a rollover prevention mechanism of the truck.

FIG. 6 is a side view showing a rollover prevention mechanism of the truck.

[Explanation of symbols]

 1 Coke Oven 2 Carbonization Chamber 3 Deck 4 Orbit 5 Bogie 6 Guide Post 7 Elevating Frame 8 Elevating Cylinder 9 Guide Frame 10 Air Breaker Support 11 Air Breaker 12 Air Hammer 13 Rod-like Chisel 14 Front Coke Receiving Box 15 Water Spray Fire Extinguishing Nozzle 16 Water Hole 17 Bearing 18 Tilting cylinder 19 Cradle 20 Traveling device 21 Traveling wheel 22 Traverse type travel mechanism 23 Hydraulic cylinder 24 Bearing 25 Wire rope 26 Overturning prevention mechanism 27 Ladle back stay 28 Bearing 29 Handle 30 Hooking metal fitting 31 Chute 32 Forward / backward movement Cylinder 33 Kiln Coke 34 CDQ Bucket

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyomi Terazono 1 Mizushima Kawasaki-dori, Kurashiki-shi, Okayama Prefecture (no address) Inside the Mizushima Steel Works, Kawasaki Steel Co., Ltd. (72) Hiroshi Nakayama 1 Mizushima-kawasaki-dori, Kurashiki-shi, Okayama Prefecture Chome (no street number) Kawasaki Steel Co., Ltd. Mizushima Steel Works (72) Inventor Hideo Nakajima 1-chome, Mizushima Kawasaki Dori, Kurashiki City, Okayama Prefecture (No street) Kawasaki Steel Co., Ltd. Mizushima Steel Works (72) Inventor Makoto Hamaki Okayama 1-chome, Mizushima Kawasaki-dori, Kurashiki-shi, Japan (No.) Inside Kawashima Steel Co., Ltd. Mizushima Works (72) Inventor Shinshiro Izumi 1-23, Taito, Taito-ku, Tokyo Maruman Building, 2nd floor, Koritsu Engineering Co., Ltd.

Claims (2)

[Claims] 1. A trolley that can travel on a front deck of a coke oven kiln chamber, a lifting frame that moves up and down along a guide post provided on the trolley, and a kiln that follows a guide frame provided on the lifting frame. A coke oven front coke discharge device for a coke oven, comprising an air breaker capable of moving forward and backward in the direction of the mouth and a kiln mouth coke pushing rod-shaped chisel attached to the air breaker. 2. The coke discharge device in front of the coke oven kiln opening of the coke oven according to claim 1, wherein a kiln front coke box provided with a water spray extinguishing nozzle is tiltably arranged on the carriage.