Self-cleaning fire damper for coke oven air supply pipeline

By introducing a combination of an automatic ash removal mechanism and a flame arrestor mesh into the coke oven gas supply pipeline, and using ultrasonic vibration to remove dust, the problem of manual cleaning of accumulated ash in existing flame arrestors is solved, achieving the effects of self-cleaning and preventing ash accumulation.

CN224307721UActive Publication Date: 2026-06-02ANSHAN BAINAI MASCH EQUIP MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANSHAN BAINAI MASCH EQUIP MFG CO LTD
Filing Date
2025-04-23
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing flame arresters in the gas supply pipelines of coke ovens require manual disassembly when cleaning accumulated ash. This operation is cumbersome and labor-intensive, and the accumulated ash can easily cause blockages.

Method used

A self-cleaning flame arrester that prevents dust accumulation was designed, which includes an automatic dust removal mechanism and a flame arrestor mesh. It utilizes a combination of an ultrasonic vibrating rod and a water storage shell to remove dust from the flame arrestor mesh through vibration, and combines this with tiny holes to divide the flame and prevent the flame from spreading.

Benefits of technology

The automatic ash removal function of the flame arrester has been realized, which simplifies the cleaning process, reduces manpower consumption, and effectively prevents blockage caused by ash accumulation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a self-cleaning flame arrester for preventing ash accumulation in a coke oven gas supply pipeline. It includes a coke oven gas supply pipe and two connecting pipes. An automatic ash-cleaning mechanism is welded and fixed at the joint of the two connecting pipes. The automatic ash-cleaning mechanism is inserted into the connecting pipe, which is fixed to the coke oven gas supply pipe by bolts and nuts. A flame arresting mesh is detachably installed on the front side of the automatic ash-cleaning mechanism. The flame arresting mesh has multiple small holes and is fixed to the automatic ash-cleaning mechanism by screws. An ash-collecting mechanism is located below the front side of the flame arresting mesh and is detachably fixed to the connecting pipe by screws. The automatic ash-cleaning mechanism includes a water storage shell and an ultrasonic vibrating rod. The water storage shell is welded and fixed to the connecting pipe and is filled with water. An ultrasonic vibrating rod inserted into the top of the water storage shell is installed therein. Multiple guide rods inserted into the water storage shell are fixed on the flame arresting mesh. This utility model provides convenient flame arrest, has a simple structure, facilitates ash cleaning, and saves manpower.
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Description

Technical Field

[0001] This utility model relates to the field of flame arrester technology, and in particular to a self-cleaning flame arrester for preventing ash accumulation in coke oven gas supply pipelines. Background Technology

[0002] Flame arresters are required to be installed on coke oven gas supply pipelines to prevent backfire and potential hazards. Tiny dust particles mixed in the gas within the coke oven gas supply pipeline can accumulate on the flame arrester's mesh, causing blockages. Currently, cleaning existing flame arresters requires manual removal of the mesh, which is extremely cumbersome. Therefore, there is an urgent need to develop a self-cleaning flame arrester for coke oven gas supply pipelines that is convenient to use, has a simple structure, facilitates cleaning of accumulated ash, and saves manpower. This would overcome the shortcomings of current applications and meet current needs. Utility Model Content

[0003] The purpose of this invention is to provide a self-cleaning flame arrester for preventing ash accumulation in coke oven gas supply pipelines, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A self-cleaning flame arrester for preventing ash accumulation in a coke oven gas supply pipeline includes a coke oven gas supply pipe, a connecting pipe, an automatic ash removal mechanism, an ash receiving mechanism, and a flame arresting net. Two connecting pipes are included, and the automatic ash removal mechanism is welded and fixed at the joint of the two connecting pipes. The automatic ash removal mechanism is inserted into the interior of the connecting pipe. The connecting pipe is fixed to the coke oven gas supply pipe by bolts and nuts. A flame arresting net is detachably installed on the front side of the automatic ash removal mechanism. The flame arresting net has multiple small holes and is fixed to the automatic ash removal mechanism by screws. An ash receiving mechanism is located below the front side of the flame arresting net and is detachably fixed to the connecting pipe by screws. The automatic ash removal mechanism includes a water storage shell and an ultrasonic vibrating rod. The water storage shell is welded and fixed to the connecting pipe and is filled with water. An ultrasonic vibrating rod inserted into the top of the water storage shell is installed therein. Multiple guide rods inserted into the water storage shell are fixed on the flame arresting net.

[0006] Preferably, the water storage shell is provided with multiple insertion holes for inserting guide rods.

[0007] Preferably, the connecting pipe is provided with mounting holes for bolts to pass through.

[0008] Preferably, the ash receiving mechanism includes a collection box, a mounting plate, and a sealing gasket. The mounting plate is detachably fixed to the connecting pipe by screws. A sealing gasket is fixed to the inner side of the mounting plate, and a collection box is fixed to the inner side of the sealing gasket.

[0009] The beneficial effects of this utility model are as follows: This self-cleaning flame arrester for preventing ash accumulation in coke oven gas supply pipes, when flames appear in the coke oven gas supply pipe and attempt to pass through the flame arrester mesh, are divided into many tiny flame areas by these holes. Because the heat and active substances in each tiny area are rapidly absorbed and consumed by the surrounding metal mesh, the flame cannot continue to spread in the gaps, thus preventing the flame from spreading. When the flame arrester mesh accumulates a lot of dust after prolonged use, an ultrasonic vibrator is activated to vibrate the water in the water storage tank. The vibration is transmitted to the flame arrester mesh through a guide rod. The vibration causes the dust on the flame arrester mesh to fall and be collected by the collection box. After multiple cleanings, the ash collection mechanism can be removed, and the dust in the collection box can be emptied. In summary, this utility model is convenient for flame arrest, has a simple structure, is easy to clean, and saves manpower. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0011] Figure 2 This is a partial structural diagram of the present invention. Figure 1 .

[0012] Figure 3 This utility model Figure 2 A diagram illustrating the split state.

[0013] Figure 4 This utility model Figure 2 Internal sectional view.

[0014] Figure 5 This is a partial structural diagram of the present invention. Figure 2 .

[0015] Figure 6 This is a partial structural diagram of the present invention. Figure 3 .

[0016] Legend:

[0017] 1. Coke oven gas supply pipe; 2. Connecting pipe; 201. Mounting hole; 3. Automatic ash removal mechanism; 301. Water storage shell; 3031. Insertion hole; 302. Ultrasonic vibrator; 4. Ash collection mechanism; 401. Collection box; 402. Mounting plate; 403. Sealing gasket; 5. Fire arrestor net; 501. Guide rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0019] Specific implementation examples are given below.

[0020] See Figures 1-6 In this embodiment of the utility model, a self-cleaning flame arrester for preventing ash accumulation in a coke oven gas supply pipeline includes a coke oven gas supply pipe 1, a connecting pipe 2, an automatic ash removal mechanism 3, an ash receiving mechanism 4, and a flame arresting net 5. There are two connecting pipes 2, and the automatic ash removal mechanism 3 is welded and fixed at the joint of the two connecting pipes 2. The automatic ash removal mechanism 3 is inserted into the interior of the connecting pipe 2. The connecting pipe 2 has mounting holes 201 for bolts to pass through. The connecting pipe 2 is fixed to the coke oven gas supply pipe 1 by bolts and nuts. A flame arresting net 5 is detachably installed on the front side of the automatic ash removal mechanism 3. The flame arresting net 5 has multiple small holes. When a flame attempts to pass through the flame arresting net 5, it is divided into many tiny flame areas by these holes. Because the heat and active substances in each tiny area are rapidly absorbed by the surrounding metal... The fire-resistant mesh absorbs and consumes flames, preventing them from spreading continuously within the pores and thus stopping the spread of flames. The fire-resistant mesh 5 is fixed to the automatic ash-removing mechanism 3 by screws (screws and related screw holes are not shown). An ash-receiving mechanism 4 is provided on the lower front side of the fire-resistant mesh 5. The ash-receiving mechanism 4 is detachably fixed to the connecting pipe 2 by screws (screws and related screw holes are not shown). The automatic ash-removing mechanism 3 includes a water storage shell 301 and an ultrasonic vibrating rod 302. The water storage shell 301 is welded and fixed to the connecting pipe 2. The water storage shell 301 is filled with water. An ultrasonic vibrating rod 302 inserted into the top of the water storage shell 301 is installed therein. Multiple guide rods 501 inserted into the water storage shell 301 are fixed on the fire-resistant mesh 5. Multiple insertion holes 3031 for inserting the guide rods 501 are provided on the water storage shell 301.

[0021] The ash receiving mechanism 4 includes: a collection box 401, a mounting plate 402, and a sealing gasket 403. The mounting plate 402 is detachably fixed to the connecting pipe 2 by screws. The sealing gasket 403 is fixed to the inner side of the mounting plate 402, and the collection box 401 is fixed to the inner side of the sealing gasket 403.

[0022] Working principle: This self-cleaning flame arrester for preventing ash accumulation in the coke oven gas supply pipe works as follows: When a flame appears in the coke oven gas supply pipe 1 and attempts to pass through the flame arrestor mesh 5, it is divided into many tiny flame areas by these holes. As the heat and active substances in each tiny area are quickly absorbed and consumed by the surrounding metal mesh, the flame cannot continue to spread in the gaps, thus preventing the flame from spreading. When the flame arrestor mesh 5 accumulates a lot of dust after long-term use, the ultrasonic vibrator 302 is activated to vibrate the water in the water storage tank 301. The vibration is transmitted to the flame arrestor mesh 5 through the guide rod 501. The vibration causes the dust on the flame arrestor mesh 5 to fall and be collected by the collection box 401. After multiple cleanings, the ash receiving mechanism 4 is removed, and the dust in the collection box 401 is emptied.

[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A coke oven gas supply pipeline dust accumulation self-cleaning flame arrester, characterized in that, Including coke oven air supply pipe (1), connecting pipe (2), automatic dust cleaning mechanism (3), dust receiving mechanism (4) and fire screen (5), the number of connecting pipe (2) is two, the combination of two connecting pipe (2) is welded with automatic dust cleaning mechanism (3), the automatic dust cleaning mechanism (3) is inserted into the inside of connecting pipe (2), the connecting pipe (2) is fixed with coke oven air supply pipe (1) through bolt, nut, the front side of automatic dust cleaning mechanism (3) is detachably installed with fire screen (5), the fire screen (5) is provided with a plurality of small holes, the fire screen (5) is fixed with automatic dust cleaning mechanism (3) through screw, the front side of fire screen (5) is provided with dust receiving mechanism (4), the dust receiving mechanism (4) is detachably fixed with connecting pipe (2) through screw, the automatic dust cleaning mechanism (3) includes: water storage shell (301) and ultrasonic vibration rod (302), the water storage shell (301) is welded with connecting pipe (2), the water storage shell (301) is filled with water, the top of water storage shell (301) is provided with ultrasonic vibration rod (302) inserted into its inside, the fire screen (5) is fixed with a plurality of guide rods (501) inserted into the water storage shell (301).

2. The coke oven gas supply pipeline anti-depositing self-cleaning flame arrester according to claim 1, characterized in that, A plurality of insertion holes (3031) are arranged on the water storage shell (301) for the insertion of guide rods (501).

3. The coke oven gas supply pipeline anti-depositing self-cleaning flame arrester according to claim 1, characterized in that, A mounting hole (201) is arranged on the connecting pipe (2), and the mounting hole (201) is used for bolt passing.

4. The coke oven gas supply pipeline anti-depositing self-cleaning flame arrester according to claim 1, characterized in that, The dust receiving mechanism (4) includes a collecting box (401), a mounting sheet (402) and a sealing rubber pad (403), the mounting sheet (402) is detachably fixed with the connecting pipe (2) through screw, the sealing rubber pad (403) is fixed on the inner side of the mounting sheet (402), and the collecting box (401) is fixed on the inner side of the sealing rubber pad (403).