JPS626111Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a brick wall cutting device for connecting a new and old brick wall when partially repairing a brick wall of a coke oven combustion chamber.

During long-term use of ordinary coke ovens, various external forces may cause damage such as cracks to the brick walls of the combustion chamber, rendering them inoperable.

In this case, the combustion chamber brick wall will be partially reloaded and repaired, but the connecting surface of the old and new bricks should be smoothed to ensure smooth sliding due to the difference in expansion between the new and old bricks at the joint between the new and old brick walls when the temperature rises after the repair. There is a need to. For this reason, when reloading and repairing, it is necessary to cut the old brick wall at the joint between the new and old brick walls. This brick wall cutting is usually done in a stepped manner, rather than in a straight line, in order to ensure the strength of the connection between the old and new brick walls and to prevent gas leakage. Furthermore, since the repair range in the height direction usually extends from the bottom of the furnace to near the ceiling, this range is cut as described above.

Traditionally, cutting of old brick wall joints was done by workers using hand cutters, and although the non-repaired parts were covered with insulation material, the inside of the furnace was hot and the cutting work was difficult. The workability was poor and cutting work took a lot of time.

The present invention aims to solve the above-mentioned drawbacks and provide a brick wall cutting device that can cut old brick walls without the need for workers to enter the high-temperature furnace. In order to cut the wall into a stepped shape as described above, a cutter for cutting at right angles to the center line of the combustion chamber row and a cutter for cutting parallel to the center line are provided on the cutter holder, and the cutter for cutting at right angles is set at the center line. The cutter for cutting in parallel is configured to move forward and backward parallel to the center line, and the cutter holder is configured to move back and forth at right angles and in parallel to the center line. It is characterized in that it is configured to be movable up and down along a vertically provided guide rail, and each of the driving machines and a power source outside the furnace are connected via a power transmission path, and the furnace can be removed from the furnace to be remotely controlled from outside the furnace. It is something.

Representative embodiments of the present invention will be described below with reference to FIGS. 1 to 5. 1 is a row of combustion chambers to be repaired, and 2 is a row of heat-retaining combustion chambers that will not be repaired. 3 of repaired combustion chamber row 1 is a non-repaired part;
4 is a repair part. 5 is a heat insulating material that is attached to the repaired combustion chamber row 1 side of the heat retention combustion chamber row 2 before disassembling the repair part 4, and is used to cut off the radiant heat from the furnace body due to the heat retention combustion chamber row 2, and to keep the inside of the furnace at a high temperature. This is to avoid damage to the heat-retaining combustion chamber 2 due to cooling.

The repair section 4 will eventually be dismantled and completely removed, but during the old brick cutting process, the bricks will be dismantled at the part that interferes with the brick wall cutting device when operating the brick wall cutting device, and the rest will remain undismantled. .

16-a and 16-b are installed vertically on the bottom surface of the furnace using guide rails. 16-c is guide rail 1
Side beams for positioning the beams 6-a and 16-b are provided at appropriate intervals and fixed to the backstay 6 at one end. A plurality of bolts 17 with load receiving plates are attached to the side beam 16-c and tightened to the brick wall of the repaired part 4 of the repaired combustion chamber row 1 to strengthen the support of the guide rails 16-a and 16-b.

The cutter holder 7 has a plurality of guide rollers 18 and side rollers 1 on both sides of the cutter holder 7 as a mechanism for moving the cutter holder itself up and down.
9, a guide roller 18 is guided along the guide rail 16-a, and a side roller 19 is guided along the guide rail 16-b, and the cutter holder 7 has a mechanism to easily move up and down during brick wall cutting. are doing.

The cutter holder 7 also has a cutter 8 for cutting the brick wall of the combustion chamber at right angles to the center line of the row of combustion chambers.
13, and cutters 11 and 14 for cutting in parallel are provided. These cutters 8, 11, 13, 1
4 cuts the brick wall by performing rotational movement using an appropriate driving force such as fluid pressure or electric power. The cutters 8 and 13 which cut at right angles to the center line of the combustion chamber row are configured to be movable back and forth at right angles to the center line by a cylinder 9 and parallel to the center line by a cylinder 10. . Further, cutters 11 and 14 which cut parallel to the center line of the combustion chamber row are configured to be movable back and forth parallel to the center line by means of cylinders 12 and 15.

Each cutter and each cylinder can operate independently,
Also, interlocking operation is possible by creating a sequence. A wire rope 20 has one end connected to the cutter holder 7 and the other end connected to the wire drum 24 via wire sheeps 22 and 23. A handle 21 is attached to the wire drum 24,
By turning this, the cutter pedestal 7 is raised and lowered, and the old bricks at the joint between the new and old brick walls are cut. As described above, when cutting old bricks, bricks can be cut by remote control from outside the furnace without the need for a worker to enter the high-temperature furnace, improving work efficiency, shortening the working time, and enabling test downs.

In this embodiment, the cutter holder 7 is raised and lowered by manually turning the handle 21, but a drive device may be attached to the wire drum 24. Furthermore, although the cutter holder 7 and the wire drum 24 are connected by the wire rope 20, they may be connected by a chain.

Next, a procedure for cutting a combustion chamber brick wall using the brick wall cutting device of the present invention will be explained.

There are several methods for the order of cutting, and the present invention is applicable to any of these methods, but here the movement of the cutter will be explained in the commonly used order. (See Figure 5) Align the cutter 8 with line A connecting points a and b, and align the cutter 11 with line B connecting points c and b.

Move the cutter 8 forward and cut the A line. After cutting the A line, the cutter 8 is moved back.

The cutter 11 is moved forward to cut the B line. After cutting B line, cutter 1
Move 1 back. (By cutting line A and line B, section F having point g is removed.) After removing section F, the cutter 8 is advanced to cut line c connecting point b and point d. C
After line cutting, the cutter 8 is moved back.
(G section is removed by cutting line C.) Move the cutter 8 to line D connecting points e and f and align.

After aligning the cutter 8, the cutter 8 is moved forward to perform cutting on the D line. After cutting the D line, the cutter 8 is moved back.

After cutter 8 retreats, cutter 11 is advanced to cutting line E connecting point b to point f, and
Perform line cutting. After E-line cutting, the cutter 11 is moved back. (The H portion of the brick is removed by cutting the D line and the E line.) The old brick at the new and old brick connection area is cut in the above order.

The cutter holder 7 is moved up and down by rotating the wire drum 24.

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

To carry out brick wall cutting work, a worker does not have to enter the high-temperature furnace and can perform brick wall cutting by remote control from outside the furnace, greatly improving work efficiency and increasing effectiveness.

By using brick wall cutting equipment,
By being able to cut brick walls in a short time, it is possible to obtain great benefits in shortening the construction period and reducing costs for repair work.

Conventionally, brick wall cutting work required many workers, but with this invention, the work can be done with about two people, greatly contributing to labor savings.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a row of coke oven combustion chambers before repair, Fig. 2 is a plan view showing a brick wall being cut by a brick wall cutting device showing an embodiment of the present invention, and Fig. 3 is a plan view showing a row of coke oven combustion chambers before repair. 4th front view of the brick wall cutting device showing the embodiment of the present invention as viewed from the line arrow;
The figure is a side view of the brick wall cutting device according to the embodiment of the present invention taken along lines B to B in FIG. 2, and FIG. 5 is an explanatory diagram showing the order of brick cutting according to the embodiment of the present invention. 1 is a repaired combustion chamber row, 2 is a heat retention combustion chamber row, 3 is an unrepaired part of the repaired combustion chamber row, 4 is a repaired part of the repaired combustion chamber row, 5 is a heat insulator, 6 is a backstay, 7 is a cutter holder, 8, 11, 13, 14 are cutters,
9, 10, 12, 15 are cylinders for advancing and retracting the cutter, 16-a, 16-b are guide rails, 16
-c is a side beam, 17 is a bolt with a load receiving plate, 18 is a guide roller, 19 is a side roller, 20 is a wire rope, 21 is a handle, 2
2 and 23 are wire sheep, and 24 is a wire drum.

Claims (1)

[Scope of utility model registration request] A cutter for cutting the brick wall of the coke oven combustion chamber at right angles to the center line of the combustion chamber row and a cutter for cutting parallel to the center line are installed on the cutter holder, and the cutter for cutting at the right angle is perpendicular and parallel to the center line. The cutter for cutting in parallel is configured to be able to move forward and backward parallel to the center line, and the cutter holder is configured to be able to move up and down along a vertically provided guide rail. A brick wall cutting device for repairing a coke oven combustion chamber, characterized in that each driving machine is connected to a power source outside the furnace via a power transmission path so that it can be remotely controlled from outside the furnace.