JP2963625B2 - Cleaning equipment around the lower part of the coke oven - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus particularly suitable for cleaning around a lower part of a coke oven.

[0002]

2. Description of the Related Art Conventionally, a coke oven mouth is provided with a poor furnace lid detachment and a knife due to carbon and tar generated in the coal carbonization process, and powder and small coke and carbon remaining at the bottom of the furnace after leaving the kiln. Insufficient mounting of the edge caused leakage of gas generated by dry distillation due to poor mounting of the furnace lid, such as poor sealing due to insufficient pushing of the edge and misalignment of the seal due to lifting or inclination of the furnace lid, causing problems in operation and environment.

Accordingly, the area around the mouth of the coke oven is cleaned,
There is a need to prevent gas generated by dry distillation due to a poor installation state of the furnace lid, and various cleaning devices and removal methods have been proposed. For example, as a method of removing carbon and tar adhering to a door frame sheet surface or a side surface of a kiln opening, a method of scraping by operating a flat scraper in a vertical direction is common, but using a rotary cutter. A scraper has also been proposed (Japanese Patent Publication No. 58-22499).

However, it is difficult to remove firmly attached carbon by the above method. The other device is intended to remove carbon and tar adhering to the door frame sheet surface and side surfaces, which are hardware, so a strong rotational impact can be applied.However, it is necessary to clean the entire surface of the door frame sheet. The rotary cutter is placed horizontally for functionality. Therefore, in order to remove carbon and tar adhering to the lower part of the kiln mouth, particularly to the corner portion up to the furnace lid mounting depth, the brick portion must be removed, and the brick is damaged by the strong rotational impact. there is a possibility. In addition, in the case of the horizontal arrangement, a wide range of dead space is generated in the corner portion, and a sufficient effect cannot be expected.

[0005] In addition, a method has been proposed in which powder, small coke, carbon, and the like remaining on the bottom of the kiln mouth are removed by using a flat scraper (Japanese Patent Publication No. 53-3761).
JP-B-53-3763, JP-B-56-46516)
However, in this method, not only is it difficult to sufficiently scrape and remove, but also the material that has been removed for scraping forward is dropped on the tar pan, and it is necessary to further clean the tar pan after the removal work. There is.

Further, various shapes of coke and tar fall on the tar pan when the furnace lid is removed or when the coke is extruded, and accumulate after flowing out. Therefore, a flat-pan scraper-like tar pan cleaner is used to remove these. Generally, scraping is performed. However, with the above-mentioned apparatus, it is not possible to sufficiently remove the liquid high-viscosity material such as tar and the entire surface of the tar pan.
There is also a problem that carbon powder and tar accumulate, and furthermore, unremoved tar on the front deck of the kiln mouth falls, thereby contaminating the work environment.

As for the above-mentioned scraping method, improvement of a scraper shape (Japanese Utility Model Publication No. 61-29714) and a roller-type scraping machine (JP-A-5-112782) have been proposed. Therefore, the above-mentioned problems cannot be sufficiently solved.

Further, a method of spraying and removing high-pressure water (Japanese Patent Publication No. 2-62000, Japanese Utility Model Publication No. 59-10108)
No., No. 63-9564, and No. 61-32989
No.) have also been proposed. Spraying and removing these high-pressure water can be expected to be effective for cleaning the entire tar pan and removing tar.However, the high-pressure water, which is almost pinpoint spray, can cover a wide area over a short time without affecting the kiln cycle. I have to say that there is a problem to finish cleaning.

In addition, tar, powdery coke, and carbon that flow out at the time of removing the furnace lid adhere to the sheet surface below the door frame, and the tar, powdery coke, and carbon that adhere to the sheet surface cause the furnace at this site to adhere. Lid sealability is reduced, and gas generated by dry distillation is leaked. However, there is hardly any efficient removal apparatus for removing tar, powdery coke and carbon adhered to the sheet surface.

[0010]

As described above, conventionally, (1) removal of carbon and tar adhering to the lower corner portion of a furnace opening, which may lead to defective furnace lid removal and furnace gas leakage.
(2) removal of powder and small coke and carbon remaining on the bottom of the kiln mouth, (3) removal of tar and the like adhered to the lower sheet surface of the door frame, and (4) removal of tar adhering to the tar pan. Nothing could be done efficiently even with either of the above.

[0011] Therefore, the present situation is to periodically remove and clean these by human tactics, and there has been a demand for mechanization and automation. The present invention has been made in view of the above-described conventional problems, and has as its object to provide a cleaning apparatus capable of comprehensively and efficiently cleaning the vicinity of a lower part of a coke oven kiln opening.

[0012]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, a cleaning apparatus for a lower part of a coke oven kiln of the present invention is provided with an extruder or a guide wheel which can move toward and away from the coke oven kiln. A fixed frame attached to the distal end portion, an elevating frame that can be freely moved up and down along the fixed frame, and an elevating mechanism of the elevating frame. A pair of arms arranged side by side to protrude, a cylinder device for opening and closing an arm having a rod end and a cylinder end pivotally supported at base ends of these arms, and a rotatable tip end of each of the arms Screw cutters installed in a hanging manner and a rotation drive mechanism of these screw cutters, and a jet port at the tip supported by the elevating frame and having An air nozzle pipe which is disposed toward the end, and than and a traverse mechanism of the high pressure water washing cleaner and high-pressure water washing cleaner to and disposed transversely movably to project forward to the lifting frame,
If necessary, a vertical shock absorber is provided between the fixed frame and the elevating frame, and a shock absorber in the approaching / separating opening / closing direction is interposed between the arm and the elevating frame.

[0013]

In the apparatus for cleaning the lower part of the mouth of a coke oven kiln according to the present invention, the lifting mechanism is driven to move the lifting frame up and down so that a screw cutter, air nozzle piping,
The high-pressure flush cleaner moves up and down integrally. A pair of screw cutters, each of which is rotated by a rotary drive mechanism, opens and closes by moving a rod of a cylinder device to open and close. In addition, the high-pressure water washing cleaner drives the traversing mechanism and horizontally moves in the horizontal direction, so that the injection angle of the rotary high-pressure water injection nozzle provided at the tip can be set optimally. Furthermore, variations in the vertical and horizontal positions in each of the coke ovens can be followed by the respective shock absorbers.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a cleaning apparatus for the vicinity of a lower part of a coke oven kiln of the present invention will be described with reference to one embodiment shown in FIGS. FIG. 1 is a front view showing an embodiment of a cleaning apparatus for a lower part of a coke oven mouth of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a right side view of FIG. 1, and FIG. FIG. 5 is a view taken along line AA, FIG. 5 is a view taken along line BB in FIG. 2, and FIG. 6 is a view taken along line CC in FIG.

In FIG. 1 to FIG. 6, reference numeral 1 denotes a fixed frame attached to the tip of an extruder, which is movable toward and away from the coke oven kiln 2, for example. At a substantially central position, as shown in FIG. 1, a pair of guide rollers 3a at a predetermined interval is provided.
As shown in FIG. 3, the guide rollers 3a and 3b guide the guide members 3a and 3b on the front and rear surfaces thereof. The lifting frame 4 is moved up and down by the movement of the rod. Reference numeral 3c denotes a guide roller pivotally supported by the fixed frame 1 to guide the side surface of the lifting frame 4.

As shown in FIG. 4, 6a and 6b are a pair of arms which are pivotally supported by the lifting frame 4 at an intermediate portion thereof and are arranged side by side so as to protrude forward at the distal end side. The base end of 6a is pivotally supported by the rod end of the cylinder device 7, and the base end of the other arm 6b is pivotally supported by the cylinder end of the cylinder device 7. Therefore, this cylinder device 7
Arm 6a, 6b forming a pair
Open / close and open / close with the intermediate pivots 6aa and 6ba as fulcrums.

Numerals 8a and 8b denote screw cutters which are respectively installed at the tips of the arms 6a and 6b in a hanging manner. These screw cutters 8a and 8b are rotatable by bearings 9 as shown in FIG. , For example, motors 10a and 10b, which are rotary drive mechanisms mounted on the upper surfaces of the respective arms 6a and 6b.
The rotation of b is transmitted through the chain and the sprocket 11 to rotate.

Numeral 12 is an air nozzle pipe arranged with the injection port 12a at the front end directed toward the lower end of the screw cutters 8a and 8b. The air nozzle pipe is supported by the elevating frame 4 and moves up and down together with the screw cutters 8a and 8b. The relative positional relationship between the injection port 12a and the lower ends of the screw cutters 8a and 8b does not always change.

Reference numeral 13 denotes a high-pressure flushing cleaner which is mounted on the elevating frame 4 so as to protrude forward and movably traverse. As shown in FIGS. When the rod of the cylinder device 14 pivotally supported on one side of the elevating frame 4 moves back and forth, the elevating frame 4
The rollers 22 are guided by guide members 15a and 15b provided laterally, and can be moved horizontally in the horizontal direction. In addition, the high-pressure washing cleaner 13 includes a hydraulic motor 17.
And a rotary high-pressure water injection nozzle 13a that rotates.

Reference numeral 18 denotes, for example, a coil spring which is a buffer device interposed between the fixed frame 1 and the elevating frame 4. The screw spring 18 causes a variation in the vertical position in each of the coke ovens. The shock when the lower end collides with the hearth brick at the time of the lowering of the hearth brick is buffered to prevent damage to the hearth brick.

Numeral 19 is a damper, for example, a shock absorber interposed between the base ends of the arms 6a and 6b and the lifting frame 4. The damper 19 causes the screw in the coke oven to vary in the left-right direction due to variations in the left-right position. When the cutters 8a and 8b come into contact with and separate from each other or rotate or when the cutters 8a and 8b rotate, the shock when the outer periphery collides with the side wall brick is buffered, and damage to the side wall brick is prevented.

The cleaning device for the lower part of the coke oven opening of the present invention is configured as described above. Next, the case of cleaning the lower part of the coke oven opening using this cleaning device will be described.

First, with the lifting frame 4 at the upper limit position and the pair of arms 6a and 6b at the closed position,
The extruder is moved closer to the coke oven kiln 2. When the screw cutters 8a and 8b reach the door frame 20, which is the tip of the coke oven port 2, the motor 10
A.10b is driven to rotate the screw cutters 8a and 8b, and at the same time, the rods of the cylinder devices 5 and 7 are moved out to lower while the screw cutters 8a and 8b are opened. Thereby, carbon and tar adhering to the lower corner portion and the side wall portion of the coke oven kiln 2 are removed.

Next, in the state described above, the extruder is further moved closer to the coke oven kiln 2 and then separated, and when the screw cutters 8a and 8b return to the door frame 20, the rod of the cylinder device 7 is retracted. Then, the screw cutters 8a and 8b are closed, and the rod of the cylinder device 5 is retracted to raise the screw cutters 8a and 8b. Then, after the rotation of the screw cutters 8a and 8b is stopped by stopping the motors 10a and 10b, the extruder is separated from the coke oven kiln port 2.

When the screw cutters 8a and 8b are opened and lowered, the screw cutters 8a and 8b are displaced vertically and horizontally in each of the coke ovens.
The impact when the lower end and the outer peripheral surface of the a. 8b collide with the furnace bottom brick and the side wall brick is buffered by the coil spring 18 and the damper 19, and the damage is prevented as much as possible.

Further, the screw cutter 8a
At the same time, air is supplied to the air nozzle pipe 12 during the rotation of the air nozzle 8b, and the air is jetted from the jet port 12a to deposit powdered / small carbon, coke or tar deposited on the bottom of the coke oven kiln 2 lower part. Screw cutter 8a in addition to
・ Carbon and tar removed from the wall surface by 8b are also pushed into the kiln.

Further, at the same time, high-pressure water is also supplied to the high-pressure water injection nozzle 13a, and high-pressure water is injected into the lower part of the door frame 20 by approaching the coke oven port 2 of the extruder. Then, the cylinder device 14 is operated to move the high-pressure water injection nozzle 13a in a transverse direction, and high-pressure water is injected over the entire surface of the tar pan 21 by separating from the coke oven port 2 of the extruder.

That is, in the cleaning apparatus for the periphery of the lower part of the coke oven kiln of the present invention, the screw cutters 8a and 8b, the air nozzle and the high-pressure washing cleaner 13 are operated at substantially the same timing, so that the coke is removed by the screw cutters 8a and 8b. The carbon and tar adhering to the lower corner portion of the furnace kiln 2 are removed, and the air / nozzle removes the powder / small coke, carbon and tar remaining at the furnace bottom of the coke kiln 2 and the screw cutters 8a and 8b. The dropped carbon and tar are pushed into the kiln, and the remaining tar, powdered and small coke and carbon that cannot be removed by the conventional tar pan cleaner by the high-pressure water cleaner 13 are removed from the tar pan 2.
(1) While removing the entire surface, the tar, powdery coke, and carbon adhered to the sheet surface under the door frame 20 are removed.

In this embodiment, the extruder is provided with the cleaning device for cleaning the periphery of the lower part of the coke oven of the present invention at the tip thereof, but it goes without saying that it may be installed at the tip of the guide wheel. In this embodiment, the extruder is fixed to the tip of the extruder. However, the extruder may be installed so as to be movable toward and away from the extruder.

[0030]

As described above, in the apparatus for cleaning the lower part of the mouth of a coke oven according to the present invention, the screw cutter, the air nozzle and the high-pressure washing cleaner are operated at almost the same timing, so that the processing time is short. In addition, since the screw cutter is installed vertically, almost no dead space exists in the lower corner of the coke oven kiln opening, and the removal efficiency increases. Furthermore, because the high-pressure water injection nozzle of the high-pressure water washing cleaner is a rotary type,
A wide range of cleaning can be performed in a short time.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of a cleaning apparatus for a lower part of a coke oven kiln opening of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a right side view of FIG. 1;

FIG. 4 is a view taken along the line AA of FIG. 1;

FIG. 5 is a BB view of FIG. 2;

6 is a view taken in the direction of arrows CC in FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed frame 2 Coke oven kiln opening 4 Elevating frame 5 Cylinder device 6a Arm 6b Arm 7 Cylinder device 8a Screw cutter 8b Screw cutter 10a Motor 10b Motor 12 Air nozzle piping 12a Spout port 13 High pressure washing cleaner 13a High pressure water injection nozzle 14 Cylinder device 18 Coil spring 19 Damper

──────────────────────────────────────────────────の Continued on the front page (72) Inventor Yasuhiko Noda 1850 Minato, Wakayama City, Wakayama Prefecture Sumitomo Metal Industries, Ltd.Wakayama Works (72) Inventor Akio Nakanishi 1850 Minato, Wakayama City, Wakayama Prefecture Sumitomo Metal Industries, Ltd.Wakayama Steel Corporation (72) Inventor Fumio Nitta 1850 Minato, Wakayama-shi, Wakayama Sumitomo Metal Industries, Ltd.Wakayama Works (72) Inventor Satoshi Ogawa 23, 958 Ariyasu, Ariyasu, Shonai-cho, Kaho-gun, Fukuoka 23 58) Field surveyed (Int.Cl. ⁶ , DB name) C10B 43/04

Claims (2)

(57) [Claims] 1. An extruder or a device installed at the tip of a guide wheel that can move toward and away from a coke oven kiln to clean the periphery of the lower part of the coke oven kiln, wherein the extruder or the guide wheel is provided. A fixed frame attached to the distal end of the frame, an elevating frame that can be freely moved up and down along the fixed frame, and an elevating mechanism of the elevating frame. A pair of arms arranged side by side to protrude from the arm, a cylinder device for opening and closing the arm pivotally supported on the rod end and the cylinder end at the base end of each arm, and freely rotatable at the tip of each of the arms A screw cutter installed in a drooping manner and a rotation drive mechanism of these screw cutters, and a tip of the injection port supported by the elevating frame is connected to the screw cutter. An air nozzle pipe arranged toward the lower end of the cleaner, a high-pressure flush cleaner installed so as to protrude forward and traverse freely from the elevating frame, and a traversing mechanism of the high-pressure flush cleaner. Cleaning equipment around the lower part of the coke oven. 2. A cleaning device for a periphery of a lower part of a coke oven kiln according to claim 1, wherein a vertical shock absorber between the fixed frame and the lifting frame and a shock absorber in the opening / closing direction between the arm and the lifting frame. A cleaning device around the lower part of the coke oven kiln, which is interposed.