JPH0776340B2 - Coke oven furnace lid groove cleaning device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a coke oven furnace lid groove cleaning device for cleaning deposits such as tar adhering to a knife edge groove portion of a coke oven furnace lid. .

[Conventional technology]

Since the knife edge of the furnace lid is an important part that seals the gas from the coke oven so that it does not leak into the atmosphere when the furnace lid is attached to the kiln mouth of the coke oven, scratches, deformation, and deformation of the knife edge during cleaning, Damage cannot occur. Further, the brick holder has a large unevenness in the portion of the furnace lid holding the heat insulating material (heat-resistant brick, etc.), and it is necessary to take a large clearance for safety during cleaning.

Conventionally, there are a mechanical type and a high-pressure water type in the coke oven furnace lid groove cleaning device, which are used individually.

The mechanical cleaning device cleans the deposits on the knife edge groove by scraping by mechanical contact, and there are a scraper system and a groove cutter system. Further, the high-pressure water type cleaning device cleans the deposits on the knife edge groove portion by scatter cleaning with a jet of high-pressure water.

[Problems to be Solved by the Invention]

However, in the mechanical cleaning device, since the cleaning method is based on mechanical contact, it is absolutely necessary to avoid contact between the knife edge and the brick holder as described above, and the vicinity of the knife edge in the knife edge groove and the brick holder. It was possible to clean only the approximately central part excluding the vicinity, and a sufficient cleaning width could not be obtained. Further, the deposits on the knife edge groove portion move to the contact surface of the shaving means, and are deposited and deposited thereon. Since the cleaning effect decreases as the deposit grows, the cleaning effect decreases drastically in a relatively short time. For this reason, the work of removing the deposits on the contact surface of the shaving means must usually be performed manually. The more times this removal work is performed, the better. However, the removal work done manually can only be performed during the daytime outage hours, and the number of daytime outages such as for coke guide cars and coke extruders is 2 Three
Since the cleaning work is performed only once, the removal work is limited to a few times / day. Therefore, there is an inconvenience that the cleaning operation is unavoidably used in a state where the cleaning effect is lowered to some extent.

Therefore, in order to eliminate such inconvenience, Japanese Patent Publication No. 60-21
It is possible to continuously remove the deposit accumulated on the contact surface of the shaving means by a mechanical contact type device as seen in Japanese Patent No. 634, but it is possible to remove it from the contact surface of the shaving means. Since the deposits move and accumulate on the contact surface of the cleaning device, the removal effect declines, which inevitably avoids the inconvenience of having to manually remove the deposit that has moved to the contact surface of the removing device. There wasn't.

In addition, the high-pressure water cleaning device gives the pressure, flow rate and cleaning time necessary for scattering and cleaning the deposits without damaging the knife edge, brick holder and knife edge groove bottom made of steel material. There is an advantage that you can clean the entire width of the knife edge groove,
In order to clean the entire groove width with high-pressure water cleaning, a very large amount of high-pressure water is required for cleaning, and the high-pressure water pump and the high-pressure water pipe that guides the high-pressure water from the pump to the nozzle become large,
The facility for treating the waste water after cleaning becomes large in size, which is not economical.

[Object of the Invention]

The present invention has been made to solve the above problems, and an object of the present invention is to use a mechanical cleaning device and a high-pressure water cleaning device together to eliminate inconveniences between them and to maintain and improve the cleaning effect. .

[Means for Solving the Problems]

The coke oven furnace lid groove cleaning device of the present invention is a mechanical cleaning device that scrapes and cleans the knife edge groove part except for the vicinity of the knife edge and the vicinity of the brick holder, and a high pressure in the vicinity of the knife edge of the knife edge groove and the vicinity of the brick holder. A high-pressure water type cleaning device for cleaning with water is provided so as to be movable in the longitudinal direction of the knife edge groove, and the mechanical cleaning device cleans deposits deposited on the shaving means of the device by cleaning with high-pressure water. It is characterized in that a high-pressure water type cleaning device is attached.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings showing a coke oven furnace lid side surface groove cleaning device.

In the figure, reference numeral 1 is a lift truck, which is attached to a frame outside the drawing provided on a coke extruder or a coke guide vehicle so as to be able to move up and down. The lift cart 1 is provided with a holder (not shown) that receives and suspends the furnace lid G from the furnace lid detaching machine.

Reference numeral 2 denotes a pair of left and right nozzle mounting shafts. A screw cutter 3 for cleaning the side surface of the furnace lid G is rotatably mounted on the mounting shafts 2. The nozzle mounting shaft 2 is rotatably mounted on the lift truck 1 via a shaft of a screw cutter 3 so as to project horizontally and in the furnace length direction, and is mounted on the lift truck 1 via the holder. The space between the bearings 4 can be adjusted by the lateral movement mechanism of the bearing 4 corresponding to the suspended furnace lid G.

Reference numeral 5 denotes a plurality of high-pressure water jet nozzles (in the embodiment, two nozzles are vertically arranged at intervals of two on the left and right, for convenience, four nozzles), which are mounted on the tip of the nozzle mounting shaft 2, and the screw cutter 3 is attached to the furnace lid G. When it is brought into contact with the side face a, it is directed toward the vicinity of the knife edge c of the knife edge groove portion b and the vicinity of the brick holder d.

Reference numeral 6 denotes a pair of left and right scraper mounting members, which are mounted on the lift truck 1 via a horizontal slide mechanism 7 so as to project horizontally and in the furnace length direction, and are disposed above the screw cutter 3 and the high-pressure water jet nozzle 5. And the position of which can be adjusted by the left-right slide mechanism 7 in correspondence with the furnace lid G suspended on the lift truck 1 via the holder, and by screwing into the scraper attachment member 6
It can be fixed by a fixing screw 8 having one end abutted against.

9 is a plate-shaped scraper, which is a mounting base with a built-in cushioning mechanism 10
When the screw cutter 3 is brought into contact with the side surface a of the furnace lid G, it is attached to the scraper attachment member 6 through the blade edge groove bottom part e except for the vicinity of the knife edge c and the vicinity of the brick holder d. It is possible to abut.

Reference numeral 11 denotes a nozzle mounting member, one end of the mounting member 11 is connected to a moving device 12 provided on the lift truck 1, and an intermediate portion is movably supported by a forward / backward guide 13 provided on the lift truck 1. In addition, the moving device 12 can move back and forth horizontally and in the furnace length direction.

Reference numeral 14 denotes a high-pressure water jet nozzle for removing debris adhering to and depositing on the scraper 9, which is attached to the tip of the nozzle mounting member 11 so that the scraper 9 can be oriented. A high-pressure water hose 15 is connected to the high-pressure water jet nozzle 14, the tip of the hose 15 is supported by the tip of the nozzle mounting member 11 via the high-pressure water jet nozzle 14, and the rear end of the nozzle mounting member 11. Connector 16 at rear end
Is supported through.

Although the scraper 9 is used as the shaving means in this embodiment, it goes without saying that a groove cutter or the like may be used.

In the above-mentioned configuration, after the furnace lid G is received from the furnace lid detaching machine and hung by the holder (not shown) provided in the lifting carriage 1,
When the furnace lid G is inserted between the screw cutters 3, the screw cutter 3 is pressed against the adhering material attached to the side surface a of the furnace lid G, and the nozzle mounting shaft 2 that supports the screw cutter 3
The high-pressure water jet nozzle 5 provided at the tip of the high-pressure water jet nozzle 5 is directed near the knife edge c of the knife edge groove b on the side of the furnace lid and the vicinity of the brick holder d.
The scraper 9 arranged above is pressed against the deposit attached to the bottom e of the knife edge groove b on the side surface of the furnace lid, and at that time, it is elastically supported by the spring in the mount 10 which is compressed.

Therefore, when the screw cutter 3 is rotated and the lifting carriage 1 is moved downward while jetting high-pressure water from the high-pressure water jet nozzle 5, the deposit adhered to both side surfaces a of the furnace lid G by the screw cutter 3 is removed. While being scraped off, as shown in FIG. 4, the high-pressure water jetted from the high-pressure water jet nozzle 5 causes the knife edge groove b on the side surface of the furnace lid.
The adhered substances adhering to the vicinity of the knife edge c (width A portion) and the vicinity of the brick holder d (width B portion) are washed and removed. For this reason, the adhering matter attached to the central portion (width C portion) of the groove bottom portion e remains without being removed, but this is scraped off by the scraper 9 and eventually the knife edge groove portion b (groove width D) is cleaned. be able to.

The amount of high-pressure water (water jet) jetted from the high-pressure water jet nozzle 5 (washing water amount) needs to be set to an appropriate amount of water per unit groove width for cleaning, and increases in proportion to the cleaning width. To do. Therefore, the cleaning width is D in the prior art and A + B in the present invention, so (A + B) / D
The amount of wash water should decrease until. By the way, groove width D =
50, each cleaning width A = 8, B = 15, C = 27 (unit mm), (A + B) /D=0.46, that is, the amount of washing water is 46% of the conventional one.
Decrease to.

Needless to say, cleaning may be performed so that the cleaning widths A and C and B and C overlap each other.

Further, by moving the high-pressure water jet nozzle 5 and the scraper 9 downward, first, the high-pressure water adheres to the knife edge groove portion b in the vicinity of the knife edge c (width A portion) and in the vicinity of the brick holder d (width B portion). After washing and removing, the adhering matter adhering to the central portion (width C portion) of the knife edge groove portion b was scraped off by the scraper action, but the high pressure water jet nozzle 5 and the scraper 9 were turned upside down, The deposit attached to the central portion (width C portion) of the groove b is removed, and then the knife edge c
It is preferable to remove the deposits adhering to the vicinity (width A portion) and the vicinity of the brick holder d (width B portion) because cleaning debris easily flows to the removal traces in the central portion of the groove portion and the cleaning effect can be further improved. .

Although the adhering matter moves from the knife edge groove portion b to the scraper 9 and accumulates and grows, the high pressure water jet nozzle 14 is directed toward the scraper 9, so that the high pressure water jet nozzle 14
When high pressure water is jetted from the nozzle, the deposits on the scraper 9 are washed and removed by the high pressure water jetted from the nozzle,
The cleaning effect of the scraper 9 is maintained. Further, since it is non-contact, the deposits do not move from the knife edge groove portion b side to the removing device (high-pressure water jet nozzle 14) side, so that the deposit removing work of the conventional removing device is unnecessary.

When this device is installed in a coke extruder, a coke oven 1
The working time of the extruder per gate is about 8 minutes. Of these, the time required for cleaning the furnace lid side surface groove is about 4 minutes. Since the high-pressure water jet nozzle 5 is used during this time, the high-pressure water pump is in the on-load state.
However, for the remaining 4 minutes, the high-pressure water jet nozzle 5 is not used, and the high-pressure water pump is in an unloaded state. Moreover, the cleaning width C by the scraper 9 is substantially the same as the cleaning width A + B by the high pressure water. Therefore, the deposit on the scraper 9 can be removed by the high-pressure water jetted from the high-pressure water jet nozzle 14 by using the high-pressure water pump for the high-pressure water jet nozzle 5 when it is not used for cleaning the side wall groove of the furnace lid. . That is, after cleaning the knife edge groove b on the side surface of the furnace lid, the high-pressure water pump is switched and connected from the high-pressure water jet nozzle 5 to the high-pressure water jet nozzle 14 by the switching valve, and the high-pressure water is jetted from the nozzle 14 to scraper 9 The deposits can be removed, and the cleaning of the furnace lid side groove part b and the cleaning of the scraper 9 used during the operation can be completed within the working time of the extruder per coke oven.

In removing the deposits on the scraper 9, the nozzle mounting member 11 is moved by the moving device 12 to move the high pressure water jet nozzle 14 from the retracted limit position (storage position) at a proper speed to inject high pressure water. With this high-pressure water, the scraper 9 is cleaned and removed from the root to the tip.

Although the present embodiment has described the example of cleaning the knife edge groove portion b on the side surface of the furnace lid, the same effect can be applied to the case of cleaning the knife edge groove portion on the upper surface or the lower surface of the furnace lid. Also, the coke oven furnace lid groove cleaning device was explained,
It goes without saying that it can also be applied as a cleaning device for tar pans and the like.

〔The invention's effect〕

As described above, the present invention, while moving in the longitudinal direction of the knife edge groove, cleans the vicinity of the knife edge of the knife edge groove bottom and the vicinity of the brick holder by washing with high pressure water so as not to damage the knife edge and the brick holder, and The bottom of the knife edge groove is cleaned by scraping off the part except the vicinity of the knife edge and the vicinity of the brick holder with a scraper, so that the knife edge groove part can be reliably and efficiently cleaned without damaging the knife edge and the brick holder, and the work efficiency is improved. Can be improved. Moreover, since not only the entire groove width within the knife edge groove but only the vicinity of the knife edge and the vicinity of the brick holder can be washed with high pressure water, the amount of washing water can be significantly reduced, so that the high pressure water pump, the high pressure water pipe, and The water treatment facility and the like can be downsized, and the initial cost and running cost of the facility can be reduced.

Also, since the deposits deposited on the scraper can be cleaned by washing with high pressure water and the cleaning effect by the scraper can be maintained, the knife edge groove part can be cleaned evenly, and the above-mentioned furnace lid groove part cleaning effect can be maintained and improved. Be useful. Moreover, since the scraper deposits are removed in a non-contact manner, there is no deterioration in the function of the removing device side, which helps maintain the cleaning effect of the scraper and eliminates the conventional waste treatment on the removing device side. There are also advantages.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 and FIG.
The figure is a right side view of FIG. 1, a plan view, and FIG. 4 is an operation explanatory view. 1 ... Lifting truck, 2 ... Nozzle mounting shaft, 3 ... Screw cutter, 4 ... Bearing, 5 ... High-pressure water jet nozzle, 6 ... Scraper mounting member, 7 ... Horizontal slide mechanism, 8 ... Fixing screw, 9: scraper, 10: mounting base, 11: nozzle mounting member, 12: moving device, 13: forward / backward guide, 14: high pressure water jet nozzle, 15: high pressure water hose, 16 ... Connector, G ... Furnace lid, a ... Side surface, b ... Knife edge groove part, c ... Knife edge, d ... Brick holder, e ... Knife edge groove bottom part.

Claims (1)

[Claims] 1. A mechanical cleaning device for scraping and cleaning a portion of the knife edge groove except for the vicinity of the knife edge and the brick holder, and a high pressure for cleaning the vicinity of the knife edge of the knife edge groove and the vicinity of the brick holder by washing with high pressure water. A water type cleaning device is provided so as to be movable in the longitudinal direction of the knife edge groove, and the mechanical cleaning device is provided with a high pressure water cleaning device for cleaning deposits deposited on the shaving means of the device by cleaning with high pressure water. A coke oven furnace lid groove cleaning device characterized by being attached.