JPS6239073Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to an apparatus for cleaning the inner surface and sheet surface of a coke oven frame.

(Problems of the prior art to be solved by the invention) Conventionally, methods have been devised in which both sides of the coke oven frame are cleaned using only a mechanical scraper or high-pressure water washing without distinguishing between the inner surface and the sheet surface. Each method has its advantages and disadvantages, as described below.

In other words, high-pressure water cleaning makes it possible to remove deposits evenly and reliably without damaging the furnace frame sheet surface, which has a lot of dissolved tar as deposits. Although it is suitable for cleaning the sheet surface of a furnace frame, where the lid needs to be in close contact with the furnace lid to seal the mouth, it is difficult to use it for cleaning the inner surface of the furnace frame, considering the negative effect it has on the inside of the furnace. In addition, the objects to be cleaned on the inner surface of the furnace frame are carbon and tar, which are relatively hard deposits, so a mechanical scraper can reliably clean the inner surface of the furnace frame, and it is also possible to clean the inner surface of the furnace frame with a mechanical scraper. The method using a mechanical scraper is suitable for cleaning the inner surface of the furnace frame, since there is no problem of adverse effects on the inner surface of the furnace frame. However, since the object to be cleaned on the sheet surface of the furnace frame is mainly molten tar, if it is cleaned with a mechanical scraper, the molten tar will adhere to the scraper, making it necessary to remove it further, and cleaning may not be sufficient. Furthermore, there is an unavoidable problem that the furnace frame sheet surface may be damaged.

(Purpose of the invention) This invention was devised to solve the above-mentioned conventional problems.In order to take advantage of the respective features of the method using a mechanical scraper and the method using high-pressure water cleaning, the inner surface of the furnace frame is cleaned using a mechanical scraper. Clean,
The sheet surface of the furnace casing is cleaned by high-pressure water washing, and an object of the present invention is to provide a coke oven casing cleaning device that can simultaneously and reliably clean the inner surface of the furnace casing and the sheet surface using a simple mechanism with high reliability. purpose.

(Structure of the invention) The coke oven casing cleaning device of the present invention is a coke oven casing cleaner mounted on a coke extruder or a coke guide car so as to be movable back and forth with respect to the coke oven. A scraper for cleaning the inner surface of the furnace frame is attached to the cart via a buffer that allows it to come into close contact with the inner surface of the furnace frame, and a high-pressure water for cleaning the sheet surface of the furnace frame directed toward the sheet surface of the furnace frame is attached to the cart. A spray nozzle is attached, and when the cart moves up and down, the inner surface of the furnace frame is cleaned by a scraper, and the sheet surface of the furnace frame is cleaned by high-pressure water from a high-pressure water injection nozzle.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. In the figure, 1 is a main body frame of a furnace frame cleaner having an H-shaped cross section. Rails 2 are provided on both left and right sides of the main body frame 1, and rails 2 are provided at the front part. Centering plates 3 for alignment with the center of the kiln mouth are provided at the top and bottom, and guide rails 4 are provided at the bottom of the rear portion along the left and right directions. is attached so that it can move up and down. The left and right carts 7 are connected to a chain 8 stretched between the upper and lower sprockets 5 and 6.
The upper sprocket 5 is rotated by a driving source 9.
By rotating the rail 2 in forward and reverse directions, the center of the lengthwise direction of the rail 2 is set at a fixed position, and the rail 2 moves up and down in opposite directions. Two upper and lower water pipes 10 and a scraper support arm 11 extending in front of the main body frame 1 are fixed to the trolley 7, and the water pipes 10
A high-pressure water injection nozzle 12 for cleaning the furnace frame sheet surface is attached to the tip of the arm 11, and a scraper 13 for cleaning the inner surface of the furnace frame is attached to the tip of the arm 11. A buffer 14 is installed along the left and right middle of the arm 11. It is mounted so that it can be tilted horizontally through the This scraper 13
is connected to the proximal end of the arm 11 via a shock absorber 15 at its side end on the cart side, and is tilted in the longitudinal direction by the shock absorber 15 to a greater extent than the inner surface 16 of the furnace frame, as shown by the imaginary line in FIG. It is being

This kind of main body frame 1 is the machine frame 1 of the holder.
A support roller 20 that is suspended from a flexible hanger 18 at the upper part of the 7 and connected by a chain 19 for preventing forward falling, and a support roller 20 that is engaged with the guide rail 4 at the lower part and a buffer that extends in the front and rear direction. 21, it is elastically supported in the front-rear direction so as to be movable left and right.
The machine frame 17 of the holder is installed on a movable frame (not shown) that is mounted on the coke oven side end of the coke extruder or coke guide car so as to be movable back and forth with respect to the coke oven 22 in a direction perpendicular to the direction of the oven bed. has been done. After the coke extruder or coke guide car is stopped at a fixed position, the main body frame 1 of the furnace frame cleaner is moved forward by the movable stand, and the centering plate 3 is moved to the furnace opening 2.
When the main body frame 1 is moved forward in the kiln-aligned state, the scraper 13 first contacts the outer edge of the inner surface 16 of the furnace frame, and then the buffers 14 and 15 touch the inner surface 16 of the furnace frame. The high-pressure water injection nozzle 12 is designed to be in close contact with the furnace frame sheet surface 24 when the close contact state is achieved.

(Function) After coke extrusion or coke guiding work, when the main body frame 1 of the furnace frame cleaner is aligned with the furnace and moved forward,
Since the left and right scrapers 13 provided on the main body frame 1 are tilted to a greater extent than the inner surface of the furnace frame in the front-rear direction, they smoothly enter the furnace frame, first hit the outer edge of the inner surface 16 of the furnace frame, and then the scrapers 13 It tilts from the imaginary line position shown in FIG. 4 to the solid line position centering on the connection point between the and buffer 14, and comes into close contact with the inner surface 16 of the furnace frame, and also shifts in the width direction of the inner surface of the furnace frame, covering its entire width. . At this time, the high-pressure water injection nozzle 12 is directed toward the furnace frame sheet surface 24. In this state, when the left and right carts 7 are repeatedly moved up and down in opposite directions by a chain drive by the rotational drive source 9, the inner surface of the furnace frame 16 is cleaned by the scraper 13 pressed by the buffers 14 and 15. . During this time, if high-pressure water is supplied from a water supply source (not shown) to the high-pressure water injection nozzle 12 through the water supply hose 25 and the water pipe 10, the furnace frame sheet surface 24 is cleaned by the high-pressure water from the nozzle 12.

Further, since the scraper 13 is in elastic contact with the inner surface 16 of the furnace frame through the buffers 14 and 15, the inner surface 16 of the furnace frame
If there is any hard deposits that are difficult to scrape off, they will escape and damage will be prevented.

(Effects of the invention) As described above, the present invention can bring the scraper into close contact with the inner surface of the furnace frame by moving the kiln together and moving forward, and can also direct the high-pressure water injection nozzle toward the sheet surface of the furnace frame. It has an extremely simple configuration that can be moved, and has high mechanical reliability. Furthermore, the inner surface of the furnace frame and the seat surface can be simultaneously and reliably cleaned by a mechanical scraper and high-pressure water cleaning, respectively, and the adverse effects of high-pressure water cleaning on the inside of the furnace can be minimized.

[Brief explanation of the drawing]

1 and 2 are a plan view showing an outline of the device configuration according to the present invention, a left side view taken along the - line, and FIG. FIG. 4 is an enlarged sectional view of FIG. 1 for explaining the movement of the scraper when it is set. 1... Body frame of the furnace frame cleaner, 2... Rail, 3... Centering plate, 5, 6... Sprocket,
7...Dolly, 8...Chain, 9...Rotary drive source, 10...Water piping, 11...Scraper support arm, 12...High pressure water jet nozzle, 13...Scraper, 14, 15...Buffer vessel, 16...furnace frame inner surface, 17...machine frame holder, 22...coke oven, 23...kiln mouth, 24...furnace frame sheet surface, 2
5...Water supply hose.

Claims (1)

[Scope of utility model registration request] A trolley is attached to the left and right sides of the body frame of a furnace frame cleaner mounted on a coke extruder or a coke guide car so as to be movable back and forth with respect to the coke oven, and a scraper for cleaning the inner surface of the furnace frame is attached to the trolley. A high-pressure water jet nozzle for cleaning the furnace frame sheet surface is attached to the cart, and when the cart moves up and down, the scraper cleans the inner surface of the furnace frame. A coke oven casing cleaning device characterized in that the casing sheet surface is cleaned with high-pressure water from a high-pressure water injection nozzle.