Continuous cleaning device for inner wall of coke oven gas pipeline

Abstract

The utility model belongs to the technical field of coke oven gas pipelines, particularly relates to a continuous cleaning device for the inner wall of a coke oven gas pipeline, and aims to solve the problem that coke oven gas is difficult to clean in the background technology, the continuous cleaning device comprises a gas pipe, a sleeve is arranged in the gas pipe, and an extension rod is connected to the inner wall of the sleeve in a sliding manner. The spray head is arranged at the proper position of the coke oven gas pipe, hot ammonia water is introduced into the spray head, the spray head can be moved by pushing the sleeve and the extension rod, the cleaning effect can be achieved by spraying the hot ammonia water into the pipeline, online continuous cleaning of the inner wall of the pipeline is achieved, production halt for overhauling is not needed, and the U-shaped coil pipe is of an up-down U-shaped structure. The sewage discharging requirement is met, meanwhile, the water sealing effect is achieved, gas leakage is prevented, sewage enters the sewage discharging pump through the sewage discharging valve, the liquid inlet pipe and the U-shaped coil pipe and is conveyed to follow-up treatment through the sewage discharging pump, and the effect of reducing the resistance of the gas pipe is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of coke oven gas pipelines, in particular to a device for continuously cleaning the inner wall of a coke oven gas pipeline. Background Art

[0002] Coke oven gas is a high calorific value gas, raw gas or rough gas due to its high combustible content. It is a combustible gas produced when coking coal is prepared from several bituminous coals and undergoes high-temperature dry distillation in a coking oven, while producing coke and tar products.

[0003] Coke oven gas contains a large amount of impurities such as naphthalene, tar and coke powder. After long-term operation, a large amount of impurities are deposited on the inner wall of the coke oven gas pipeline, which increases the pipeline resistance and threatens the stable operation of production equipment. Due to the particularity of the production process, there is often no spare pipeline for this part of the pipeline, and it is impossible to stop production for cleaning. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a coke oven gas pipeline inner wall continuous cleaning device, which overcomes the deficiencies of the prior art and effectively solves the problem of the difficulty in cleaning the coke oven gas.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A coke oven gas pipeline inner wall continuous cleaning device comprises a gas pipe, a sleeve is arranged inside the gas pipe, and an extension rod is slidably connected to the inner wall of the sleeve, a nozzle is installed on the outer wall of one end of the extension rod, and a hot ammonia spray pipe is fixedly connected to the outer wall of the nozzle;

[0007] A liquid inlet pipe is welded to the outer wall of the bottom of the gas pipe, and a sewage valve is fixedly connected to the outer wall of the liquid inlet pipe. A U-shaped coil is fixedly connected to the outer wall of the bottom of the liquid inlet pipe, and a sewage pump is installed on the outer wall of one end of the U-shaped coil.

[0008] Preferably, the top outer wall of the U-shaped coil is fixedly connected with vent pipes which are distributed at equal distances.

[0009] Preferably, an air release valve is fixedly connected to the outer wall of one end of the air release pipe.

[0010] Preferably, sampling tubes distributed at equal distances are fixedly connected to the outer wall of the bottom of the U-shaped coil.

[0011] Preferably, a vent valve is installed on the outer wall of the sampling tube.

[0012] Preferably, a cleaning seat is provided on the outer wall of one end of the gas pipe, and the sleeve is arranged inside the cleaning seat.

[0013] Preferably, a vertical pipe is fixedly connected to the top of the extension rod, and the gas flows from the vertical pipe to the gas pipe.

[0014] The beneficial effects of the utility model are:

[0015] 1. The coke oven gas pipeline inner wall continuous cleaning device designed in this invention has a nozzle set at a suitable position of the coke oven gas pipeline, hot ammonia water is introduced into the nozzle, the nozzle can be moved by pushing the sleeve and the extension rod, and the cleaning effect can be achieved by spraying hot ammonia water inside the pipeline, thus realizing online continuous cleaning of the inner wall of the pipeline without stopping production for maintenance;

[0016] 2. The coke oven gas pipeline inner wall continuous cleaning device designed in this paper adopts an upper and lower "U"-shaped structure of the U-shaped coil, which not only meets the sewage discharge requirements, but also plays a water seal role to prevent gas leakage. The sewage enters the sewage pump through the sewage valve, liquid inlet pipe and U-shaped coil, and is sent to the subsequent treatment by the sewage pump, so as to achieve the effect of reducing the resistance of the gas pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a device for continuously cleaning the inner wall of a coke oven gas pipeline proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of a U-shaped coil connection structure of a coke oven gas pipeline inner wall continuous cleaning device proposed by the utility model;

[0019] Figure 3 The utility model discloses a schematic diagram of the internal structure of a gas pipe of a device for continuously cleaning the inner wall of a coke oven gas pipe.

[0020] In the figure: 1. gas pipe; 2. liquid inlet pipe; 3. U-shaped coil; 4. vent pipe; 5. vent valve; 6. sampling tube; 7. vent valve; 8. casing; 9. extension rod; 10. nozzle; 11. hot ammonia water spray pipe; 12. cleaning seat; 13. vertical pipe; 14. sewage valve; 15. sewage pump. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Embodiment 1, refer to Figure 3 A device for continuously cleaning the inner wall of a coke oven gas pipeline comprises a gas pipe 1, a sleeve 8 is arranged inside the gas pipe 1, and an extension rod 9 is slidably connected to the inner wall of the sleeve 8, a nozzle 10 is installed on the outer wall of one end of the extension rod 9, and a hot ammonia water nozzle 11 is fixedly connected to the outer wall of the nozzle 10.

[0023] In this embodiment, a nozzle 10 is provided at a suitable position of the coke oven gas pipe 1, and hot ammonia water is introduced into the nozzle 10. The nozzle 10 can be moved by pushing the sleeve 8 and the extension rod 9. The cleaning effect can be achieved by spraying hot ammonia water inside the pipeline, thereby realizing online continuous cleaning of the inner wall of the pipeline without stopping production for maintenance.

[0024] Example 2, refer to Figure 1 A continuous cleaning device for the inner wall of a coke oven gas pipeline, a liquid inlet pipe 2 is welded to the outer wall of the bottom of the gas pipe 1, and a sewage valve 14 is fixedly connected to the outer wall of the liquid inlet pipe 2, a U-shaped coil 3 is fixedly connected to the outer wall of the bottom of the liquid inlet pipe 2, and a sewage pump 15 is installed on the outer wall of one end of the U-shaped coil 3.

[0025] In this embodiment, the U-shaped coil 3 adopts an upper and lower "U"-shaped structure, which not only meets the sewage discharge requirements but also plays a water seal role to prevent gas leakage. The sewage enters the sewage pump 15 through the sewage valve 14, the liquid inlet pipe 2 and the U-shaped coil 3, and is sent to subsequent treatment by the sewage pump 15, thereby achieving the effect of reducing the resistance of the gas pipe 1.

[0026] Reference Figure 2 The outer wall at the top of the U-shaped coil 3 is fixedly connected with vent pipes 4 distributed at equal distances, and the outer wall at one end of the vent pipe 4 is fixedly connected with a vent valve 5.

[0027] Reference Figure 2 The outer wall at the bottom of the U-shaped coil 3 is fixedly connected with sampling tubes 6 distributed at equal distances, and the outer wall of the sampling tube 6 is installed with a vent valve 7.

[0028] Reference Figure 3 A cleaning seat 12 is provided on the outer wall of one end of the gas pipe 1 , and the sleeve 8 is arranged inside the cleaning seat 12 .

[0029] Reference Figures 1 to 3 A vertical pipe 13 is fixedly connected to the top of the extension rod 9, and the gas flows from the vertical pipe 13 to the gas pipe 1.

[0030] Working principle: When the device is in operation, firstly, hot ammonia water is sprayed into the upstream of the gas pipe 1 through the nozzle 10, and then the sewage valve 14 and the air release valve 5 are opened to allow the flushed sewage to flow along the liquid inlet pipe 2 into the U-shaped coil 3 and the sewage pump 15, and then the vent valve 7 is opened to take sewage samples, and the pipeline is emptied through the vent valve 7 during maintenance.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coke oven gas pipeline inner wall continuous cleaning device, comprising a gas pipe (1), characterized in that: The gas pipe (1) is provided with a sleeve (8) inside, and the inner wall of the sleeve (8) is slidably connected to an extension rod (9), a nozzle (10) is installed on the outer wall of one end of the extension rod (9), and a hot ammonia spray pipe (11) is fixedly connected to the outer wall of the nozzle (10); A liquid inlet pipe (2) is welded to the outer wall of the bottom of the gas pipe (1), and a sewage valve (14) is fixedly connected to the outer wall of the liquid inlet pipe (2). A U-shaped coil (3) is fixedly connected to the outer wall of the bottom of the liquid inlet pipe (2), and a sewage pump (15) is installed on the outer wall of one end of the U-shaped coil (3).

2. A coke oven gas pipeline inner wall continuous cleaning device according to claim 1, characterized in that: The top outer wall of the U-shaped coil (3) is fixedly connected with vent pipes (4) distributed at equal distances.

3. A coke oven gas pipeline inner wall continuous cleaning device according to claim 2, characterized in that: An air release valve (5) is fixedly connected to the outer wall of one end of the air release pipe (4).

4. A coke oven gas pipeline inner wall continuous cleaning device according to claim 1, characterized in that: The outer wall of the bottom of the U-shaped coil (3) is fixedly connected with sampling tubes (6) distributed at equal distances.

5. A coke oven gas pipeline inner wall continuous cleaning device according to claim 4, characterized in that: A vent valve (7) is installed on the outer wall of the sampling tube (6).

6. A coke oven gas pipeline inner wall continuous cleaning device according to claim 1, characterized in that: A cleaning seat (12) is provided on the outer wall of one end of the gas pipe (1), and a sleeve (8) is arranged inside the cleaning seat (12).

7. The device for continuously cleaning the inner wall of a coke oven gas pipeline according to claim 1, characterized in that: The top of the extension rod (9) is fixedly connected to a vertical pipe (13), and the gas flows from the vertical pipe (13) toward the gas pipe (1).

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