Integrated coke oven gas purification pretreatment machine

Abstract

The utility model relates to the technical field of metallurgical coke oven gas treatment equipment, in particular to an integrated coke oven gas purification pretreatment machine which comprises a spray treatment tower, an exhaust pipe is fixedly mounted at the top of the spray treatment tower, a fan is arranged in the exhaust pipe, and a blow-off pipe is fixedly mounted on a barrel at the bottom of the spray treatment tower. A liquid medicine adding pipe is fixedly installed on a top cylinder body of the spraying treatment tower, valves are fixedly installed on the blow-off pipe and the liquid medicine adding pipe, an air inlet cylinder is arranged on one side of the spraying treatment tower, an electric butterfly valve is fixedly installed on a front end cylinder body of the air inlet cylinder, a conical cylinder is fixedly installed on a rear end cylinder body of the air inlet cylinder, and the conical cylinder is fixedly connected with the blow-off pipe. A conveying pipe is fixedly mounted at the tail end of the conical barrel, and a pipe body at the tail end of the conveying pipe penetrates into the spraying treatment tower and is fixedly provided with a uniform distribution disc. Impurities solidified on the inner wall of the pipeline can be conveniently cleaned, the impurities are not prone to being solidified on the fan portion, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical coke oven gas treatment equipment, and specifically to an integrated coke oven gas purification pretreatment machine. Background Technique

[0002] In the metallurgical industry, coke oven gas is widely used as a heat source for heat-using devices such as cold rolling heating furnaces and gas-steam combined cycle power generation units. However, coke oven gas often contains impurities such as tar, naphthalene, inorganic sulfur (such as H 2 S) and organic sulfur (such as CS 2 , COS, etc.). The presence of impurities will affect the use effect of coke oven gas. At present, most of the treatment methods for impurities are carried out by spraying. During specific treatment operations, the gas is transported into a spray tower, and the impurities are removed by spraying.

[0003] However, when using a spray tower for impurity treatment operations, a gas transportation pipeline is generally provided on the spray tower, and a fan is directly installed inside the pipeline. After long-term use, it is easy for impurities to solidify on the fan part and the inner wall of the pipeline, making it difficult to clean. At this time, the solidified impurities will affect the normal operation of the fan and the normal gas transportation of the pipeline, affecting the subsequent treatment effect of impurities in the gas, and bringing inconvenience to users. In view of this, we have proposed an integrated coke oven gas purification pretreatment machine. Content of the Utility Model

[0004] The purpose of the utility model is to provide an integrated coke oven gas purification pretreatment machine to solve the defects mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] The integrated coke oven gas purification pretreatment machine includes a spray treatment tower. An exhaust pipe is fixedly installed at the top of the spray treatment tower, and a fan is arranged inside the exhaust pipe. A sewage discharge pipe is fixedly installed on the bottom cylinder of the spray treatment tower, and a liquid medicine adding pipe is fixedly installed on the top cylinder of the spray treatment tower. Valves are fixedly installed on both the sewage discharge pipe and the liquid medicine adding pipe. An air inlet cylinder is arranged on one side of the spray treatment tower. An electric butterfly valve is fixedly installed on the front-end cylinder of the air inlet cylinder, a conical cylinder is fixedly installed on the rear-end cylinder of the air inlet cylinder, a conveying pipe is fixedly installed at the end of the conical cylinder, and the end pipe of the conveying pipe penetrates into the spray treatment tower and is fixedly installed with a uniform distribution plate.

[0007] Preferably, a transparent viewing window is fixedly installed on the cylinder of the spray treatment tower, and the transparent viewing window is located above the conveying pipe.

[0008] Preferably, a plurality of air outlet holes communicating with the outside are provided on the bottom surface of the uniform distribution plate, and the inner diameter of the air outlet holes is 3 cm to 5 cm.

[0009] Preferably, a plurality of fixing rods arranged at equal intervals in a ring shape are fixedly installed between the blower and the inner wall of the exhaust pipe, and the number of the fixing rods is 3 to 6.

[0010] Preferably, a flange is fixedly installed on the top pipe body of the exhaust pipe, and the flange is fixedly connected to an external pipeline.

[0011] Preferably, a filling base material net is fixedly installed on the inner wall of the spray treatment tower, and the filling base material net is located above the uniform distribution plate.

[0012] Preferably, a booster pump is arranged on one side of the spray treatment tower. A blood suction pipe is fixedly installed at the water inlet end of the booster pump, a liquid medicine pipe is fixedly installed at the water outlet end of the booster pump, two horizontally arranged pipes symmetrical to each other are fixedly installed on the liquid medicine pipe, and a plurality of nozzles arranged at equal intervals are fixedly installed at the bottom of the horizontally arranged pipe. The nozzles are located inside the spray treatment tower.

[0013] Preferably, the filling base material net is located between the two horizontally arranged pipes, and the uniform distribution plate is located below the horizontally arranged pipe at the lower position.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By providing the spray treatment tower in the present utility model and arranging a blower at the exhaust pipe part of the spray treatment tower, the blower is used to work to achieve negative pressure suction to complete the transportation of gas, so that the purified air is transported outward by the blower, avoiding the impurities in the just-introduced waste gas from solidifying at the blower part. In addition, by providing the electric butterfly valve, the subsequent cleaning operation of the inner wall of the pipeline can be carried out after the pipelines such as the spray treatment tower and the intake cylinder are immersed in the liquid medicine, achieving the effect of facilitating the cleaning of the inner wall of the pipeline and reducing the solidification of impurities.

[0016] 2. By providing the uniform distribution plate and a plurality of air outlet holes in the present utility model, it can ensure that the gas is discharged more uniformly from the positions of the plurality of air outlet holes. In addition, by providing components such as a booster pump, the corresponding liquid medicine can be transported to be sprayed out from the nozzle part for spray treatment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is an exploded structure schematic diagram of the present utility model;

[0019] Figure 3This is a cross-sectional view of the spray treatment tower of the present utility model;

[0020] Figure 4 This is one of the partial structural schematic diagrams of the present utility model;

[0021] Figure 5 This is the second of the partial structural schematic diagrams of the present utility model;

[0022] The meanings of each label in the figure are as follows:

[0023] 1. Spray treatment tower; 10. Transparent window; 11. Drain pipe; 12. Chemical solution addition pipe; 13. Valve; 14. Exhaust pipe; 15. Fan; 151. Fixed rod; 16. Flange; 17. Filling base material net;

[0024] 2. Air inlet cylinder; 20. Conical cylinder; 21. Electric butterfly valve; 22. Delivery pipe; 23. Uniform distribution plate; 231. Air outlet hole;

[0025] 3. Booster pump; 30. Blood extraction pipe; 31. Liquid medicine pipe; 32. Horizontal pipe; 33. Nozzle. Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: an integrated coke oven gas purification pretreatment machine, including a spray treatment tower 1. An exhaust pipe 14 is fixedly installed at the top of the spray treatment tower 1, and a fan 15 is arranged in the exhaust pipe 14 to realize negative pressure suction to promote the entry of gas. At the same time, after the clean gas passes through the fan 15, it can avoid impurities from solidifying on the fan 15 and affecting the normal operation of the fan 15;

[0028] Specifically, a drain pipe 11 is fixedly installed on the bottom cylinder of the spray treatment tower 1, and a chemical solution addition pipe 12 is fixedly installed on the top cylinder of the spray treatment tower 1. Valves 13 are fixedly installed on both the drain pipe 11 and the chemical solution addition pipe 12 to realize the rapid addition operation of the liquid medicine by using the chemical solution addition pipe 12;

[0029] Specifically, an air inlet cylinder 2 is provided on one side of the spray treatment tower 1. An electric butterfly valve 21 is fixedly installed on the front-end cylinder body of the air inlet cylinder 2, and a conical cylinder 20 is fixedly installed on the rear-end cylinder body of the air inlet cylinder 2. A conveying pipe 22 is fixedly installed at the end of the conical cylinder 20. The end pipe body of the conveying pipe 22 penetrates into the spray treatment tower 1 and a uniform distribution plate 23 is fixedly installed, so as to realize corresponding treatment operations for the introduced gas.

[0030] In this embodiment, a transparent viewing window 10 is fixedly installed on the cylinder body of the spray treatment tower 1. The transparent viewing window 10 is made of a transparent material and is located above the conveying pipe 22, which is convenient for observing the amount of liquid medicine in the spray treatment tower 1 through the transparent viewing window 10.

[0031] Specifically, a plurality of air outlet holes 231 communicating with the outside are provided on the bottom surface of the uniform distribution plate 23. The inner diameter of the air outlet holes 231 is 3 cm to 5 cm, so that the gas can be discharged more smoothly along the positions of the plurality of air outlet holes 231.

[0032] Furthermore, a plurality of fixing rods 151 arranged in a ring at equal intervals are fixedly installed between the inner wall of the fan 15 and the exhaust pipe 14. The number of the fixing rods 151 is 3 to 6, so as to realize the supporting operation for the fan 15; a flange 16 is fixedly installed on the top pipe body of the exhaust pipe 14, and the flange 16 is fixedly connected with an external pipeline, so as to realize the continuous transportation of the treated gas to an external treatment device for treatment operations.

[0033] In addition, a filling base material net 17 is fixedly installed on the inner wall of the spray treatment tower 1. The filling base material net 17 is located above the uniform distribution plate 23. The filling base material net 17 wetted by the liquid medicine can increase the contact area with the gas, making the impurity removal operation for the gas more comprehensive.

[0034] It should be noted that a booster pump 3 is provided on one side of the spray treatment tower 1. A blood extraction pipe 30 is fixedly installed at the water inlet end of the booster pump 3, and a liquid medicine pipe 31 is fixedly installed at the water outlet end of the booster pump 3. Two horizontally arranged pipes 32 that are symmetric with each other are fixedly installed on the liquid medicine pipe 31. A plurality of nozzles 33 arranged at equal intervals are fixedly installed at the bottom of the horizontally arranged pipes 32. The nozzles 33 are located inside the spray treatment tower 1; the filling base material net 17 is located between the two horizontally arranged pipes 32, and the uniform distribution plate 23 is located below the lower horizontally arranged pipe 32, so as to realize the transportation of the liquid medicine for spray treatment operations.

[0035] When the integrated coke oven gas purification preprocessor of the present utility model is in use, valve 13 is closed, the end of air inlet cylinder 2 is fixedly installed on the external gas input pipeline, the exhaust pipe 14 is connected to the subsequent processing and conveying pipeline of external gas, electric butterfly valve 21 is opened, fan 15 is connected to an external power supply and made to work. Fan 15 works to convey the gas in spray treatment tower 1 outwards, creating a negative pressure in spray treatment tower 1 to promote the entry of gas at the air inlet cylinder 2 part. Blood extraction tube 30 is connected to the external liquid medicine conveying pipeline, booster pump 3 is connected to an external power supply and made to work. Booster pump 3 works to convey the external liquid medicine to nozzle 33 for spraying, performing a spray treatment operation on the gas entering spray treatment tower 1;

[0036] During subsequent cleaning operations, valve 13 on liquid medicine adding pipe 12 is opened, electric butterfly valve 21 is closed, so that the liquid medicine enters spray treatment tower 1, ensuring that the liquid level is higher than the height of air inlet cylinder 2. At this time, the liquid medicine can enter air inlet cylinder 2 to process the inner wall of the pipeline at the air inlet cylinder 2 part. After the treatment, valve 13 on sewage discharge pipe 11 is opened for sewage discharge operation to complete the cleaning.

[0037] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An integrated coke oven gas purification pre-treatment machine, comprising a spray treatment tower (1), characterized in that: An exhaust pipe (14) is fixedly mounted on the top of the spray treatment tower (1), and a fan (15) is arranged in the exhaust pipe (14). A sewage pipe (11) is fixedly mounted on the bottom cylinder of the spray treatment tower (1), and a liquid medicine adding pipe (12) is fixedly mounted on the top cylinder of the spray treatment tower (1). Valves (13) are fixedly mounted on both the sewage pipe (11) and the liquid medicine adding pipe (12). An air intake cylinder (2) is arranged on one side of the spray treatment tower (1), and an electric butterfly valve (21) is fixedly mounted on the cylinder of the front end of the air intake cylinder (2). A conical cylinder (20) is fixedly mounted on the cylinder of the rear end of the air intake cylinder (2), and a delivery pipe (22) is fixedly mounted on the end of the conical cylinder (20). The end of the delivery pipe (22) penetrates into the spray treatment tower (1) and is fixedly mounted with a uniform distribution plate (23).

2. The integrated coke oven gas purification pretreatment machine according to claim 1 is characterized in that: A transparent window (10) is fixedly mounted on the cylinder of the spray treatment tower (1), and the transparent window (10) is located above the delivery pipe (22).

3. The integrated coke oven gas purification pretreatment machine according to claim 1 is characterized in that: A plurality of air outlet holes (231) connected to the outside are arranged on the bottom surface of the uniform distribution plate (23), and the inner diameter of the air outlet holes (231) is 3 cm to 5 cm.

4. The integrated coke oven gas purification pretreatment machine according to claim 1 is characterized in that: A plurality of fixing rods (151) arranged in a ring shape and at equal intervals are fixedly mounted between the fan (15) and the inner wall of the exhaust pipe (14), and the number of the fixing rods (151) is 3 to 6.

5. The integrated coke oven gas purification pre-treatment machine according to claim 1 is characterized in that: A flange (16) is fixedly mounted on the top end of the exhaust pipe (14), and the flange (16) is fixedly connected to an external pipe.

6. The integrated coke oven gas purification pre-treatment machine according to claim 1, characterized in that: A filling base material net (17) is fixedly mounted on the inner wall of the spray treatment tower (1), and the filling base material net (17) is located above the uniform distribution plate (23).

7. The integrated coke oven gas purification pre-treatment machine according to claim 6 is characterized in that: A booster pump (3) is provided on one side of the spray treatment tower (1); a blood extraction tube (30) is fixedly mounted on the water inlet end of the booster pump (3); a liquid medicine pipe (31) is fixedly mounted on the water outlet end of the booster pump (3); two upper and lower symmetrical horizontal pipes (32) are fixedly mounted on the liquid medicine pipe (31); a plurality of nozzles (33) arranged at equal intervals are fixedly mounted on the bottom of the horizontal pipe (32); and the nozzles (33) are located inside the spray treatment tower (1).

8. The integrated coke oven gas purification pre-treatment machine according to claim 7 is characterized in that: The filling base material net (17) is located between the upper and lower horizontal tubes (32), and the uniform distribution plate (23) is located below the horizontal tube (32) located below.

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