JPH08104875A - Device for inserting heat insulating box for hot repairing construction for coke oven into coke oven - Google Patents

Abstract

PURPOSE: To provide a device for smoothly and rapidly inserting a heat insulating box from the outside of a cove oven into a carbonizing chamber in the coke oven in hot repairing construction being carried out during operation in the coke oven. CONSTITUTION: A pulley 7 is installed in the vicinity of the end part close to a carbonizing chamber 1 of a guide deck 6 projected from the opening part of a pusher side 3 or a coke side 4 the carbonizing chamber of a coke oven. A cable 8 connected to the bottom part of a heat insulating box 5 placed on the guide deck 6 is hung through the pulley 7 on a winch 9 laid outside the coke oven.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention repairs a furnace wall in a coke oven in the coke oven during hot repair work during the operation of the coke oven when a collapse wall is formed on both sides of the coke oven. The present invention relates to a device for accommodating a worker inside for carrying out the above-mentioned work, and inserting a heat insulating box for protecting the residual heat of the carbonization chamber to secure a working environment into the carbonization chamber.

[0002]

2. Description of the Related Art Conventionally, when a collapse wall on both sides of a carbonization chamber of a coke oven is generated, the collapse hole repair work is performed when the coke oven is shut down, or the collapse hole is collapsed on the flue (combustion chamber) side. A castable mortar casting formwork that covers the hole was hung from the flue inspection port, and instead of the formwork on the carbonization chamber side, an insulating brick product was installed from the coal charging port to the top of the hole to enclose the collapse hole. A mortar injection pipe was inserted near the top of the hole from the coal charging port, and castable mortar was injected into the hole for repair.

According to such a castable mortar injection method, the furnace wall can be restored to its original shape, but the brick fragments in the collapse holes remaining in the bottom of the flue or in the flue port pipe and the residual work such as mortar are removed. Cleaning is difficult and inadequate, and the temperature of the flue including the collapse repair part decreases, so carbonization of the product becomes uneven, and the kiln removal work of the carbonization chamber including the collapse repair part is performed separately from the steady work. There was a need.

[0004]

As described above, when furnace wall collapse holes on both sides of the coking chamber of the coke oven are created, when the collapse hole repair work is performed when the coke oven is shut down, the operation is stopped. Not only the heat loss due to the heat but also the preparation work and the work for restarting the work become complicated, and according to the above castable mortar injection method, the furnace wall can be restored to its original shape, but it remains in the flue or in the fluport pipe It is incomplete because it is difficult to remove and clean the work pieces such as brick fragments and mortar in the collapse hole, and the temperature of the flue including the collapse repair part decreases, resulting in uneven carbonization of the product and the collapse repair part. It is necessary to perform the kiln removal work of the carbonization chamber, including the above, separately from the normal work.Therefore, by performing the repair work in the hot environment of the coke oven during the repair work of the collapse hole, Be removed Bugs concerning be a challenge, particularly, the development of quickly and easily insert the insulation box to carbonization chamber device has been desired.

In order to cope with this, the present invention carries out repair work in the hot environment of the carbonization chamber during operation of the coke oven. Therefore, a repair worker is housed inside and protected from residual heat in the carbonization chamber. It is an object of the present invention to provide a device for inserting a heat insulation box for hot repair work of a coke oven into the furnace for quickly and easily inserting and evacuating a heat insulation box that secures the environment.

[0006]

[Means for Solving the Problems] In order to achieve the above object, a guide deck protruding outside the opening of the pusher side or coke side of the coking chamber of the coke oven during hot repair work of the coke oven wall. A pulley is attached near the end on the carbonization chamber side, and a heat insulation box that can be inserted into and removed from the carbonization chamber is placed on the guide deck, and the cable connected to the bottom of the box is connected to the pulley and outside the furnace. Provided is a device for inserting a heat insulation box for hot repair work of a coke oven, which is wound around a winch installed in the furnace, into the furnace.

[0007]

With the above-mentioned means, the heat insulation box is placed on the guide deck projecting outside the opening of the pusher side or coke side of the coke oven of the coke oven, and when the cable is wound by the winch outside the oven, The cable attached to the bottom of the box is wound around the winch in a folded shape through a pulley, so the insulation box is pulled toward the pulley by the tension of the winch, and thus can be guided and inserted into the carbonization chamber in the furnace. .

At this time, since the cable is connected to the bottom of the heat insulating box, the pulling force of the box due to the wire tension acts only on the bottom, and the moment of the pulling force with respect to the carbonization chamber side end of the bottom of the box is exerted. Therefore, the traction force is equal to the product of the weight of the box and the coefficient of friction between the bottom and the floor of the coking chamber, that is, the friction force at the bottom of the box, and the weight of the box is reduced. As a result, the traction force is reduced so that the box can be easily guided and inserted into the carbonization chamber without applying an excessive external force to the box.

Further, at the time of the above insertion, the cable is wound back to the winch through the pulley, but in order to pull out the heat insulation box from the carbonization chamber, the cable is not wound around the pulley and the cable is directly wound onto the winch. The insulation box will be pulled out of the carbonization chamber.

[0010]

EXAMPLES Examples will be described with reference to the drawings.
In FIG. 1, in the hot repair work of the collapse wall 2 of the coke oven wall, the guide deck 6 protruding toward the outside of the pusher side opening 3 or the coke side opening 4 of the coke oven carbonization chamber 1 is the carbonization chamber side. A pulley 7 is attached near the end, and a heat insulating box 5 that can be inserted into and removed from the carbonization chamber is provided on the guide deck 6.
Is placed, and the cable 8 connected to the bottom of the box is wound around the pulley 7 and the winch 9 installed outside the furnace. By winding the cable 8 around the winch 9,
The box 5 is inserted into the carbonization chamber 1 by the tension of the cable 8.

Although not shown, the cable 8 is unwound from the pulley 7 from the above state, and the cable is directly wound around the winch 9, so that the winch 9 winds the cable to form the heat insulation box. It will be pulled out of the carbonization chamber.

[0012]

Since the present invention is configured as described above, it has the following effects.

When the cable connected to the bottom of the heat insulating box is pulled by a winch in a folded shape as shown in FIG. 1 through a pulley, the box is inserted into the coke oven carbonization chamber, and although not shown, the cable is connected to the pulley. The box can be directly wound up by a winch and pulled out by pulling the box out of the carbonization chamber without going through.

Further, since the cable is connected to the bottom of the heat insulating box and pulled by the winch, the moment of the pulling force with respect to the carbonization chamber side end of the bottom of the box is not generated, and the weight of the box is reduced. By setting it in a structure, the traction force can be reduced and the box can be easily guided into and out of the carbonized room without applying an unnecessary external force, and the box can be easily and quickly inserted and ejected without damage. can do.

As described above, when the furnace wall of the coke oven carbonization chamber is partially collapsed, during the hot repair work of the collapsed portion during the operation of the coke oven, the box can be easily and quickly inserted and ejected without damage. It is possible to reduce the time and effort required for the repair work, shorten the work period, and reduce heat loss during operation.

[0016]

[Brief description of drawings]

FIG. 1 is an elevational view showing an embodiment of the present invention, including a cross-sectional view of a coke oven carbonization chamber portion.

[Explanation of symbols]

 1 Coke oven carbonization chamber 2 Furnace wall collapse hole 3 Pusher side opening 4 Coke side opening 5 Insulation box 6 Guide deck 7 Pulley 8 Cable 9 Winch

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshihiro Uchihashi 5-4-5 Minamienkajima, Taisho-ku, Osaka City, Osaka Prefecture (72) Inventor Yasuhiko Tokunaga 1-6-4 Sho, Ibaraki City, Osaka Prefecture

Claims (1)

[Claims] 1. A hot wall repair work for a coke oven,
A pulley is installed near the end of the coking chamber side of the coking chamber of the coke oven or the guide deck projecting outside the opening of the coke side. The box is placed and the cable connected to the bottom of the box is wound around the pulley and the winch installed outside the furnace.By winding the cable on the winch, the tension of the cable causes A device for inserting a heat insulation box for hot repair work of a coke oven into the furnace, characterized by inserting the box into the carbonization chamber