JPH0339391A - Apparatus for cleaning groove part of coke oven door - Google Patents

Abstract

PURPOSE:To uniformly remove tar, etc., deposited on a knife edge groove in high efficiency by providing a mechanical cleaning apparatus and a high-pressure water-jet cleaning apparatus in such a manner as to be movable in the longitudinal direction of a knife edge. CONSTITUTION:High-pressure water jet is ejected from a nozzle 14 while transferring the nozzle in the longitudinal direction of a knife edge groove by a transfer apparatus 12 to clean the knife edge groove (b) near the knife edge (c) and near a brick holder (d) preventing the damage of knife edge and brick holder. At the same time, the part of the groove except for the parts cleaned by the above process is scraped with a scraper 9 to complete the cleaning operation. The sizes of a high-pressure water pump, a high-pressure water piping and a water-treatment facility can be reduced and the initial cost of the apparatuses and the running cost of operation can be decreased by this process.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a coke oven lid groove cleaning device for cleaning deposits such as tar adhering to the knife groove of a coke oven lid.

[Conventional technology]

The knife knife on the oven lid is an important part that seals the coke oven gas from leaking into the atmosphere when the oven lid is attached to the kiln mouth of the coke oven, so avoid scratching, deforming, or breaking the knife when cleaning. It cannot be allowed to occur. In addition, the brick holder is extremely uneven at the part that holds the heat insulating material (heat-resistant bricks, etc.) on the furnace lid, so it is necessary to provide a large amount of clearance for safety when cleaning.

BACKGROUND ART Conventionally, there are two types of coke oven lid groove cleaning devices: mechanical type and high pressure water type, each of which is used independently.

Mechanical cleaning devices clean the deposits on knife grooves by scraping them off using mechanical contact, and there are two types: a scraper type and a groove cutter type.

Further, the high-pressure water type cleaning device cleans deposits in the knife groove by splashing and cleaning using a high-pressure water jet.

[Problem to be solved by the invention]

However, since the mechanical cleaning device uses mechanical contact for cleaning, it is absolutely necessary to avoid contact between the knife and the brick holder as described above, except in the vicinity of the knife in the knife groove and in the vicinity of the brick holder. Only the approximately central portion could be cleaned, and a sufficient cleaning width could not be obtained. Further, the deposits in the knife groove move to the contact surface of the scraping means and are deposited thereon. Since the cleaning effect decreases as the deposits grow, the cleaning effect decreases dramatically in a relatively short period of time.

For this reason, the work of removing deposits from the contact surface of the scraping means must normally be performed manually.The more times this removal work is performed, the better; This is not possible, and the current situation is that coke guide trucks, coke extruders, etc. are stopped 2.3 times during the day (excluding nighttime hours), so removal work is limited to 2.3 times a day. Therefore, there is an inconvenience in that it is unavoidable to use the cleaning device in a state where the cleaning effect is reduced to some extent.

Therefore, in order to eliminate this inconvenience,
It is conceivable to continuously remove deposits accumulated on the contact surface of the scraping means during cleaning by using a mechanical contact type device as seen in Japanese Patent No. 21634, but it is not possible to remove the deposits from the contact surface of the scraping means. This eliminates the inconvenience of having to manually remove the deposits that have moved to the contact surface of the removal device, because the removal effect decreases as the deposits move and accumulate on the contact surface of the removal device. There wasn't.

In addition, the high-pressure water cleaning device provides the necessary pressure, flow rate, and cleaning time to scatter and wash deposits, and cleans the knife groove without damaging the knife groove, brick holder, and bottom of the knife groove made of steel. It has the advantage of being able to clean the entire width of the groove.
In order to clean the entire groove width with high-pressure water cleaning, a large amount of high-pressure water is required for cleaning, and the high-pressure water pump and high-pressure water piping that guides high-pressure water from the pump to the nozzle are large, and the cleaning process requires a large amount of high-pressure water. The equipment for treating the wastewater was also large and uneconomical.

[Purpose of the invention]

The present invention has been made in order to solve the above problems, and aims to solve the inconveniences of both by using a mechanical cleaning device and a high-pressure water cleaning device in combination, and to maintain and improve the cleaning effect. .

[Means to solve the problem]

A coke oven lid groove cleaning device according to the first aspect of the present invention includes a mechanical cleaning device that scrapes and cleans the bottom of the knife groove except for the vicinity of the knife and the brick holder, and a high-pressure system that cleans the area of the knife groove near the knife and the brick holder. The present invention is characterized in that a high-pressure water type cleaning device for cleaning by water cleaning is provided movably in the longitudinal direction of the knife groove.

The coke oven lid groove cleaning device of the second invention includes a mechanical cleaning device that scrapes and cleans the bottom of the knife groove except for the vicinity of the knife and the vicinity of the brick holder; A high-pressure water cleaning device that cleans by washing with water is provided so as to be movable in the longitudinal direction of the knife groove, and the mechanical cleaning device cleans deposits deposited on the scraping means of the device by cleaning with high-pressure water. It is characterized by being equipped with a high-pressure water type cleaning device.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings showing a coke oven lid side groove cleaning device.

In the figure, reference numeral 1 denotes an elevating cart, which is attached to a frame (not shown) provided on a coke extruder or a coke guide car so as to be able to rise and fall. This elevating cart 1 is provided with a holder (not shown) that receives and suspends the furnace lid G from the furnace lid detacher.

Reference numeral 2 denotes a pair of left and right nozzle mounting shafts, on which the furnace 1 is attached.
[A screw cutter 3 for cleaning the side surface of G is rotatably attached. This nozzle mounting shaft 2 is rotatably attached to the lifting truck 1 via a bearing 4 via the shaft of the screw cutter 3 so as to protrude horizontally and in the furnace length direction, and is attached to the lifting truck 1 via the holder. The interval can be adjusted by the horizontal movement mechanism of the bearing 4 in accordance with the suspended furnace NG.

Reference numeral 5 denotes a plurality of high-pressure water jet nozzles (in the example, there are four in total, two on the top and two on the left and right), which are attached to the tip of the nozzle mounting shaft 2, and the screw cutter 3 is attached to the side of the furnace 1iG. When brought into contact with a, the knife groove is directed toward the vicinity of the knife C and the vicinity of the brick holder d.

Reference numeral 6 denotes a pair of left and right scraper mounting members, which are attached to the lifting cart 1 via a left and right slide mechanism 7 so as to protrude horizontally and in the furnace length direction, and are arranged above the screw cutter 3 and the high pressure water jet nozzle 5. Its position can be adjusted by a left-right slide mechanism 7 corresponding to the furnace lid G suspended from the lifting cart 1 via the holder, and the scraper mounting member 6 is screwed into the lifting cart 1. It can be fixed by a fixing screw 8 with one end abutted.

9 is a plate-shaped scraper with a mounting base I that has a built-in buffer mechanism.
When the screw cutter 3 is brought into contact with the side surface a of the furnace cover G, it will come into contact with the part of the knife groove bottom e excluding the vicinity of the knife C and the vicinity of the brick holder d. It is possible to contact.

Reference numeral 11 denotes a nozzle mounting member, one end of which is connected to a moving device 12 provided on the lifting cart 1, and an intermediate portion thereof is movably supported by a forward and backward movement guide 13 provided on the lifting cart 1. The moving device 12 allows it to move back and forth horizontally and in the furnace length direction.

Reference numeral 14 designates a high-pressure water jet nozzle for removing debris deposited on the scraper 9, and is attached to the tip of the nozzle attachment member 11 so as to be adjustable so as to direct the scraper 9 toward the nozzle. A high-pressure water hose 15 is connected to this high-pressure water jet nozzle 14 , the tip of the hose 15 is supported by the tip of the nozzle attachment member 11 via the high-pressure water jet nozzle 14 , and the rear end of the hose 15 is supported by the tip of the nozzle attachment member 11 . It is supported at the rear end via a connector 16.

In this embodiment, the scraper 9 is used as the scraping means, but it goes without saying that a groove cutter or the like may also be used.

In the above configuration, when the furnace NG is inserted between the screw cutters 3 after receiving and suspending the furnace 1iG from the furnace lid removal machine with a holder (not shown) provided on the lifting cart l, the screw cutters 3 The high-pressure water jet nozzle 5 installed at the tip of the nozzle mounting shaft 2 that supports the screw cap 3 is pressed against the deposits attached to the side surface a of the furnace lid, and the high-pressure water jet nozzle 5 is placed near the knife groove C of the knife groove on the side surface of the furnace lid and near the brick holder d. In addition, the scraper 9 placed above the high-pressure water jet nozzle 5 is pressed against the deposits attached to the bottom e of the knife groove on the side of the furnace lid, and at this time, the compressed spring in the mounting base 10 It will receive overwhelming support.

Therefore, when the screw cutter 3 is rotated and the lifting cart 1 is moved downward while jetting high pressure water from the high pressure water jet nozzle 5, the deposits attached to both sides a of the furnace NG are scraped off by the screw cutter 3. At the same time, as shown in Fig. 4, the high-pressure water jetted from the high-pressure water jet nozzle 5 adheres to the knife groove C (width A part) and the brick holder d (width 8 part) of the knife groove on the side of the furnace lid. The deposits are washed and removed. For this reason, the deposits attached to the center part (width C part) of the groove bottom e remain unremoved, but this is removed by the scraper 9.
As a result, the knife groove b (groove width D) can be cleaned.

The amount of high-pressure water (water diene l-) injected from the high-pressure water jet nozzle 5 (washing water amount) needs to be set to an appropriate amount of water per unit full width for cleaning.
Increases in proportion to cleaning width.

Therefore, since the cleaning width is conventionally D and is A+B in the present invention, the amount of cleaning water should be reduced to (A+B)/D. Incidentally, groove width D=50, respective cleaning width A=
8, B=15, C=27 (unit m), (A+B)
/D=0.46, that is, the amount of washing water is reduced to 46% of the conventional amount.

It goes without saying that cleaning may be performed so that the cleaning widths A and C and B and C overlap each other.

In addition, the high-pressure water jet nozzle 5 and the scraper 9 are moved downward, and the deposits adhering to the knife groove C near the knife groove C (width A part) and the brick holder d near the brick holder d (width 8 part) are first cleaned with high-pressure water. After removal, the deposits adhering to the center part (width C part) of the knife groove were scraped and removed by scraper action.
The vertical positions of the high-pressure water jet nozzle 5 and the scraper 9 are reversed, and the deposits adhering to the central part (width C part) of the knife groove are first removed, and then the deposits near the knife groove C are removed.
It is preferable to remove the deposits adhering to the width A portion) and the vicinity of the brick holder d (width portion 8), since the cleaning layer will easily flow to the removal trace at the center of the groove, and the cleaning effect can be further improved.

Deposits move and accumulate on the scraper 9 from the knife groove, but since the high-pressure water jet nozzle 14 is directed toward the scraper 9, when high-pressure water is injected from the high-pressure water jet nozzle 14, it is removed from the nozzle. The deposits on the scraper 9 are washed and removed by the jetted high-pressure water, and the cleaning effect of the scraper 9 is maintained. Furthermore, since there is no contact, deposits do not move from the knife groove side to the removal device (high-pressure water jet nozzle 14) side, so there is no need for the conventional removal device to remove deposits.

When this device is installed in a coke extruder, the coke oven 1
Extruder operating time per gate is approximately 8 minutes. Of this time, it only takes about 4 minutes to clean the groove on the side of the furnace lid. Since the high pressure water jet nozzle 5 is used during this time, the high pressure water pump is in an on-load state. However, for the remaining four 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 the cleaning width A by high-pressure water.
It is almost the same as +B. Therefore, by using the high-pressure water pump for the high-pressure water jet nozzle 5 when it is not being used to clean the furnace lid side groove, the deposits on the scraper 9 can be removed by the high-pressure water jetted from the high-pressure water jet nozzle 14. . That is, after cleaning the knife groove on the side of the furnace lid, the high-pressure water pump is switched from the high-pressure water jet nozzle 5 to the high-pressure water jet nozzle 14 using the switching valve, and high-pressure water is injected from the nozzle 14 to clean the scraper 9. By removing the deposits, it is possible to complete the cleaning of the groove on the side of the furnace lid and the cleaning of the used scraper 9 within the working time of the extruder per one coke oven, that is, during operation.

To remove the deposits on the scraper 9, the nozzle mounting member 11 is moved by the moving device 12, and the high-pressure water jet nozzle 14 is advanced from the retraction limit position (storage position) at an appropriate speed while jetting high-pressure water. This high-pressure water cleans and removes deposits from the scraper 9 from the root to the tip.

Although this embodiment has been described as an example of cleaning the knife groove on the side surface of the furnace lid, the same effect can be applied to cleaning the knife groove on the upper or lower surface of the furnace lid. In addition, the coke oven lid groove cleaning device was explained.
Needless to say, it can also be applied as a device for cleaning tar pans and the like.

〔Effect of the invention〕

As described above, the present invention cleans the vicinity of the knife groove and the brick holder at the bottom of the knife groove by cleaning with high-pressure water while moving in the longitudinal direction of the knife groove so as not to damage the knife groove and the brick holder. Since the parts other than the vicinity of the knife and the brick holder are scraped and cleaned with a scraper, the knife groove can be reliably and efficiently cleaned without damaging the knife and brick holder, and work efficiency can be improved. Moreover, only the vicinity of the knife groove and the brick holder are cleaned with high pressure water instead of the entire groove width inside the knife groove, and the amount of cleaning water can be significantly reduced. It is possible to downsize the equipment and reduce the initial cost and running cost of the equipment.

In addition, the deposits that have accumulated on the scraper can be cleaned by cleaning with high-pressure water, and the cleaning effect of the scraper can be maintained, so the knife groove can be cleaned evenly, which helps maintain and improve the cleaning effect of the furnace lid groove mentioned above. Moreover, since the deposits on the scraper are removed without contact, there is no deterioration in the functionality of the removal device, which helps maintain the cleaning effect of the scraper, and eliminates the need for waste disposal on the removal device as in the past. There is also an advantage.

[Brief explanation of drawings]

Figure 1 is a front view showing one embodiment of the present invention, Figures 2 and 3 are
The figures are a right side view and a plan view of FIG. 1, and FIG. 4 is an explanatory view of the operation. 1... Lifting trolley, 2... Nozzle mounting shaft, 3... Screw cutter, 4... Bearing, 5... High pressure water jet Nozzle, 6...
...Scraper mounting member, 7...Left-right slide mechanism, 8...
Fixing screw, 9...Scraper, 10...
・Mounting base, 11... Nozzle mounting member, 12...
...Transfer device, 13... Forward/backward guide, I4... High pressure water jet nozzle, 15...
...High pressure water hose, 16...Connector, G...
...Furnace lid, a...Side surface, b...Knifetsu groove, C...Knifetsuji, d...
...Brick holder e...Bottom of knife groove. Figure Figure Figure Figure Figure

Claims (2)

[Claims] (1) A mechanical cleaning device that scrapes off and cleans the part of the knife edge groove excluding the vicinity of the knife edge and the vicinity of the brick holder, and high pressure water that cleans the area of the knife edge groove near the knife edge and the vicinity of the brick holder by cleaning with high pressure water. A coke oven lid groove cleaning device characterized in that a coke oven lid groove cleaning device is provided movably in the longitudinal direction of a knife edge groove. (2) In the coke oven lid groove cleaning device according to claim (1), the mechanical cleaning device includes a high-pressure water cleaning method for cleaning deposits that have adhered and accumulated on the scraping means of the device by cleaning with high-pressure water. A coke oven lid groove cleaning device characterized in that the device is attached.