JPS63142092A - Cleaning and mending apparatus for cylindrical opening of coke oven or such - Google Patents

Abstract

PURPOSE:To obtain the titled apparatus for facilitating the cleaning and mending of a cylindrical opening, by rotatably attaching a cleaning header for the removal of deposit, etc., to the tip end of a rod-like insertion part protruded long from the cylindrical opening and providing a blasting and mending part having a blasting material ejection hole at the circumference of the header. CONSTITUTION:The objective apparatus 3 for cleaning and mending a cylindrical opening 2 lined with a refractory and passing a gas supplied from a coke oven 1, etc., has the following structure. A cleaning header 8 for removing the deposit fixed to the inner surface of the cylindrical opening 2 or grinding the damaged part of the surface is rotatably attached to a rod-like insertion part 6 long protruded detachably from a rotary driving part 5 of a cylindrical opening 2. A blasting and mending part 14 for refractory having blasting material ejection holes 15 is placed near the circumference of the cleaning header 8 at the insertion part 6. A prescribed blasting material is supplied to the blasting and mending part 14 and blasted through the ejection holes 15 toward the mending face of the cylindrical opening 2. The cleaning and mending of the cylindrical opening 2 of coke oven 1, etc., can be carried out by this process.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an apparatus for cleaning and repairing cylindrical openings in coke ovens and the like.

BACKGROUND OF THE INVENTION Conventionally, the cleaning and repair of the inner surface of a COG riser pipe formed by lining with refractory material in a coke manufacturing facility has been carried out completely in two parts: cleaning work and repair work. and,
For cleaning work, 15-30fl diameter, 5()00-600
A special cleaning rod with a length of 0.1 kg and a weight of 5 to 8 kg was inserted into the pipe from the bottom, and two workers supported it with both hands while moving it up and down and rotating it around. . moreover,
If the inside of the pipe is strongly adhered to, the lower end of the cleaning rod is struck with a hammer, which requires extremely hard labor and is performed in a harsh environment with high heat and dust generation. As a result, work efficiency was extremely poor.

Also, for repair work, a long pipe with a spray nozzle attached to the tip is inserted into the pipe, and two people move the pipe up and down in the same way as above, spraying refractory onto the inner surface of the pipe. As mentioned above, it was hard labor in a hostile environment with high fever.

Problems to be Solved by the Invention As described above, the heavy labor required in a harsh environment with high heat and dust generates a high level of fatigue for the workers, and there are also problems in terms of construction quality. Because the work tools are separate for cleaning inside the pipe and for spraying supplementary Cσ, it is not possible to perform the work continuously, and the work tools must be inserted and removed to change from the former to the latter. Significant loss time occurred.

Means for Solving the Problems The invention was made in view of the above points, and in a cleaning and repair device for a cylindrical opening formed by lining with a refractory material through which gas flows, such as in a coke making oven, a cylindrical opening is provided. A cleaning header is attached to the tip of the long rod-shaped opening insertion part that protrudes from the rotary drive unit so that it can be inserted into and removed from the cylindrical opening. In addition to being arranged so that it can be easily driven, a refractory spraying repair part with a spraying material ejection hole provided on the periphery near the cleaning header is arranged in the opening insertion part, and a predetermined spraying material is applied to the spraying repair part. To provide a cleaning and repair device for a cylindrical opening of a coke making furnace, etc., characterized in that the spraying material is supplied and sprayed onto the repaired surface of the cylindrical opening from a spraying material jet hole to allow repair and repair. be.

According to the present invention, a cleaning repair device is inserted into a cylindrical opening of a COG riser pipe or the like of a coke manufacturing furnace, and first, the cleaning header is mechanically rotated to remove deposits inside the pipe. Repairs can be made by cutting the damaged area and then continuously feeding the spraying material from the spraying material outlet to the surrounding surface of the cylindrical opening, which can be used in environments with high heat and dust. The work under the pipe can be reduced, the number of workers can be reduced, and the working time can be significantly shortened. Ili repair can also be improved in terms of quality and durability can be greatly improved.

Example The present invention will be explained below based on examples.

FIG. 1 and subsequent figures show an embodiment of the present invention. The cleaning and repair device 3 for the cylindrical opening 2 of the COG riser pipe formed by lining the refractory of the coke making furnace 1 is equipped with an air wrench at the bottom to which an air hose 4 can be freely connected, as shown in FIGS. 1 and 2. An opening insertion part 6 is formed by protruding into a rotary drive part 5 in an elongated manner. The opening insertion part 6 is formed by attaching a rotating shaft 7 to the rotating drive part 5 and protruding from it, and has a substantially conical cleaning header 8 made of heat-resistant special steel shaped like a grindstone at its tip. The cleaning header 8 is rotated by driving the rotary drive unit 5 by operating the operating lever 9 to grind away impurity deposits 10 such as tar and dust that adhere to the cylindrical opening 2 and cause blockages in the pipe. This makes it possible to remove the damaged part or cut out the damaged part. In addition, as shown in FIG. 2, the rotating shaft 7 is equipped with a cylindrical spray repair tool, which is formed by airtightly attaching a holding fitting 13 to the rotating shaft 7 through bushings 11 and gland packings 12 at the upper and lower parts. A section 14 is provided. The spray repair part 14 is connected to the cleaning header 8 (as shown in the figure).
A plurality of spraying material injection holes 15 of a predetermined diameter are provided around the jlI at regular intervals, and a spraying material supply pipe 17 with an on-off valve 16 attached to the lower end is connected to the spraying material supply pipe 17, as shown in FIG. The flexible hose 19 can be connected to a spraying machine 18 loaded with a predetermined refractory material and sprayed with compressed air, and the spraying material is sprayed from the above-mentioned spraying material spouting hole 15 to the inner periphery of the cylindrical opening 2. The surface can be repaired and repaired. At the lower end of the cleaning repair device 3, a disc-shaped locking member 20 with sufficient strength for hanging is provided to protrude laterally, and a coil with a predetermined elastic force is attached to the periphery of the locking member 20. A telescopic tool 21 such as a spring is attached to the cleaning and repair device 3 so that it can be suspended at an appropriate position in the work place so that the work can be performed easily.

Therefore, the opening insertion portion 6 of the cleaning repair device 3 is inserted into the first
As shown in the figure, it is inserted into the cylindrical opening 2 of the COG riser pipe of the coke making furnace 1 that is to be cleaned and repaired, and a coil spring extension 21 is inserted into the structure such as the channel material at the bottom of the furnace. Attach it by hanging it as appropriate. Then, the air hose 4 is connected, the operating lever 9 is operated to drive the rotary drive unit 5, and while rotating the cleaning header 8 at the tip, the locking member 20 at the lower end is moved up and down to open the cylindrical opening 2. The 10 scratches are then ground to remove tar, dust, and other deposits that have adhered to the surface.

Next, what about repairing the damaged part? +ii Shube l
Connect the spray machine 18 to the on-off valve 16 of No. 4 via the flexible hose 19, operate the spray machine 18 to open the on-off valve 16, and operate the operating lever 9 in the same manner as above to open the spray repair section 1.
4 in the forward and reverse directions at an appropriate speed to spray the spraying material from the spraying material ejection hole 15 on the periphery onto the repair surface of the cylindrical opening 2, and while moving the cleaning and repairing device 3 up and down, spray the sprayed refractory. Painting repairs will be carried out.

Therefore, unlike in the past, there is no need to insert and remove special tools for cleaning and repair into the cylindrical entrance, and cleaning, spraying, and repair work can be performed continuously using the same device. This makes it possible to completely eliminate lost time in replacing work tools.

In addition, since deposits and the like can be removed by mechanical means, it is possible to save labor, greatly reduce the heavy physical labor required in the past, and reduce the working time by almost half.

In particular, in this embodiment, the cleaning and repairing device can be suspended and supported in a well-balanced manner on the furnace wall using a telescopic tool such as a coil spring, so the cleaning and repairing device can be moved up and down with light labor. It is something that can be accomplished.

In addition, in the above embodiment, a reciprocating device that can be raised and lowered can be attached to the lower part of the cleaning and repair device to easily raise and lower it automatically. It is formed in a telescopic pink shape with an appropriate number of stages so that it can be easily moved up and down over a wide range within the riser pipe.
It can also be ground and repaired.

Additionally, a double bag made of transparent or other synthetic resin film is placed on the rotating drive part of the cleaning and repair equipment to collect deposits and dust to be removed by grinding, as well as fallen materials from the spraying material. It can also be done.

In the above embodiments, the COG stand-up pipe of a coke manufacturing furnace has been described, but the present invention can be similarly applied to refractory lining pipes of other actual furnaces and related chemical production equipment.

Effects of the Invention As described above, in the present invention, cleaning of the cylindrical opening formed by lining the refractory with the cleaning and repairing device mentioned above and spraying repair of the refractory can be performed mechanically, making it extremely efficient. The cleaning and repair work can be carried out in a short period of time, shortening the working time of the Rakudan, and the cleaning and repair work can be carried out with as few workers as possible and with light labor. Furthermore, the quality of cleaning and repair work has been improved, and the durability is 50% compared to conventional models.
This will lead to further improvements in the number of employees.

[Brief explanation of the drawing]

FIG. 1 is a diagram for schematically explaining the operation of an embodiment of the present invention, and FIG. 2 is a partially omitted side sectional view of the same cleaning and repairing device. ■... Coke production furnace, 2... Cylindrical opening, 3...
. . . Cleaning repair device, 5 . . . Rotation drive unit, 6 . Applicant Kawasaki Rozai Co., Ltd. Agent Patent Attorney Kuni Morimoto Figure 1 Figure 2

Claims (1)

[Claims] (1) In a cleaning and repair device for a cylindrical opening formed by lining with a refractory material through which gas flows, such as in a coke-making oven, a rod-shaped opening is provided that protrudes long from the rotary drive part so that it can be inserted into and removed from the cylindrical opening. At the tip of the insertion part, a cleaning header is rotatably installed to remove adhered substances and cut damaged parts from the inner surface of the cylindrical opening. A refractory spraying repair part with a spraying material spouting hole provided on the periphery is provided, and a predetermined spraying material is supplied to the spraying repair part, and the spraying material is sprayed from the spraying material spouting hole onto the repaired surface of the cylindrical opening. A cleaning and repair device for a cylindrical opening of a coke making oven, etc., characterized in that it is formed so that it can be repaired by attaching it.