JPS6138898Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heat insulating wall of a carbonization chamber for hot repair of a coke oven combustion chamber.

During long-term use of ordinary coke ovens, various external forces may cause damage such as cracks in the combustion chamber, rendering the oven inoperable. In this case, it will be necessary to partially reload and repair the combustion chamber. This repair is performed while keeping the unrepaired area at a high temperature, so the aim of the repair is to prevent heat from the unrepaired area from being transmitted to the repaired area, and to reduce damage and deterioration caused by cooling the unrepaired area. A heat insulating wall is provided on the bottom of the furnace in the carbonization chamber at the boundary between the repaired part and the unrepaired part of the combustion chamber and adjacent to the combustion chamber to be repaired. In order to lay bricks for this insulating wall inside the carbonization chamber, the temperature inside the furnace is high, but the bricks can be laid in a short time, and the gaps between the insulation wall and the carbonization chamber wall and between the bricks of the insulation wall are as small as possible. A wall was needed.

As shown in FIGS. 1 to 3, a conventional heat insulating wall is constructed of rectangular bricks (refractory furnace material) in the carbonization chamber furnace 3 adjacent to the combustion chamber 2 to be repaired. When bricklaying the heat insulating wall 4, bricklaying is carried out from outside the furnace into the high temperature furnace using a bricklaying jig 6.

At this time, even though the total dimension of each brick in the width direction of the carbonization chamber is smaller than the width of the carbonization chamber, it is a hot workplace and the bricklaying must be done quickly, and the bricklaying jig is required. Because the bricks 6 are long, they may swing, etc. When the attacking bricks 8 of each row are laid, the corner a of the first brick 7 and the corner b of the attacking bricks 8 (the bricks to be laid later) interfere with each other, resulting in insulation. The drawback was that the wall brickwork was extremely difficult and took a lot of time. In addition, because each brick is made small, the gaps between each insulation wall brick and between the carbonization chamber wall and the insulation wall become large, which causes the problem of cooling and deteriorating the furnace wall in the unrepaired area due to the infiltration of cold air. Ta.

The present invention aims to provide an insulating wall that can solve the above-mentioned drawbacks when building an insulating wall brickwork in a carbonization chamber.

In other words, when hot repairing a coke oven combustion chamber, in the insulation wall constructed at the boundary between the repaired part and the non-repaired part of the combustion chamber to be repaired, the contact surface with the coking chamber wall surface should be vertical, and the contact surface between the bricks of the insulation wall should be vertical. This is an insulating wall of a coking chamber for hot repair of a coke oven, in which the contact surface is constructed by laminating bricks formed on an inclined surface.

Representative embodiments of the present invention will be described below with reference to FIGS. 4 to 7.

A heat insulating wall 4 is brick-laid vertically from outside the furnace using a brick-laying jig 6 on the furnace bottom 5 at the boundary between the repaired part and the non-repaired part in the carbonization chamber 3 adjacent to the combustion chamber 2 to be repaired.

The contact surfaces of the bricks 9 and 10 used for the heat insulating wall 4 with the wall surface of the carbonization chamber are vertical, and the contact surfaces of the bricks in the heat insulating wall are inclined.

That is, the shape of each brick is that the contact surfaces of the c-plane of the brick 9 laid first and the d-plane of the attacking brick (the brick laid later) 10 have the same inclination angle, and except for this inclination, the rest has a rectangular brick shape. Same shape.

Because of the above shape, the l dimension shown in Figure 6 becomes large, and even if the bricklaying jig 6 swings a little when installing the insulation wall, the corners will not interfere, making the bricklaying work easier. is easy. Therefore, there is no need to reduce the brick dimension in the width direction of the carbonization chamber, so the gaps between each insulation wall brick and between the carbonization chamber wall and the insulation wall become smaller, preventing cold air from entering, and preventing the furnace wall from being repaired. cooling and will not deteriorate.

Based on brick manufacturing and bricklaying experience, the best angle of inclination α is approximately 60°.

That is, if the inclination angle α is decreased, the bricks will have more corner chips, and if the inclination angle α is increased, the l dimension will be decreased, making bricklaying work difficult.

In the above-mentioned embodiment, two bricks 9, 1 are used in each stage.
Although it is constructed with 0, three or more may be used depending on the width of the carbonization chamber.

As explained above, the present invention provides the following effects.

Bricklaying of attack bricks (bricks to be laid later) becomes easier, construction time is greatly shortened, and construction costs can be reduced, which is a major benefit.

Since the construction time is greatly shortened, it is possible to prevent damage and deterioration of the furnace wall due to a decrease in the temperature of the furnace wall in the non-repaired area, which is effective.

Since there is no need to reduce the dimension in the width direction of the carbonization chamber, the gaps between the bricks of the insulation wall and between the insulation wall and the wall of the carbonization chamber are greatly reduced, and the infiltration of cold air from each gap into the unrepaired area is prevented. It can prevent deterioration of the furnace wall and has a great practical effect.

[Brief explanation of the drawing]

Figure 1 is an explanatory front view of conventional insulating wall brickwork;
Fig. 2 is an explanatory view taken along the line A-A in Fig. 1, Fig. 3 is an enlarged view of a conventional insulating wall brickwork, and Fig. 4 is a front explanatory view of an embodiment of the insulating wall brickwork of the present invention. Fig. 5 is an explanatory view taken along the line B-B in Fig. 4, Fig. 6 is an enlarged explanatory view of the insulating wall brickwork of the present invention, and Fig. 7 is a perspective explanatory view of the bricks used for the insulating wall of the present invention. be. 2... Combustion chamber to be repaired, 3... Carbonization chamber, 4...
Heat insulating wall, 5... hearth bottom, 6... bricklaying jig, 7...
...Conventional bricks to be laid first for insulating walls, 8...Conventional attacking bricks for insulating walls (brick to be laid later), 9...Bricks to be laid first for insulating walls of the present invention, 10...Bricks to be laid first for insulating walls of the present invention. Attacking bricks for insulation walls (brick to be laid later), a...
Corner of 7, b... corner of 8, c... beveled surface of 9, d...
...10 oblique surfaces.

Claims (1)

[Scope of utility model registration request] During hot repair of a coke oven combustion chamber, in the insulation wall constructed at the boundary between the repaired part and the non-repaired part of the combustion chamber to be repaired, the contact surface with the coking chamber wall surface should be vertical.
The insulating wall for a coking chamber for hot repair of a coke oven is characterized in that the contact surface between the bricks of the insulating wall is constructed by laminating bricks formed on an inclined surface.