Harmful gas treatment device for chemical production

Abstract

The utility model relates to a harmful gas treatment device for chemical production. The harmful gas treatment device mainly comprises a tower body, a filter bin, a transition box, a reaction bin, reaction filler and a spraying system, waste gas is blown into a filtering bin through an air inlet pump, filtered through a concave dust filtering barrel, then enters a ventilation barrel and is discharged through meshes in the upper portion, a water pump pumps external catalytic liquid into a transition box through a pipeline, and the catalytic liquid enters a spraying rod through a hollow rotating shaft at the upper end of the transition box. The spraying rod sprays catalytic liquid to react with the reaction filler to catalyze and decompose waste gas, the waste gas is exhausted from an exhaust port, meanwhile, when entering the ventilation cylinder, gas blows spiral fan blades and drives the hollow rotating shaft to rotate, the central control rotating shaft drives the concave dust filtering cylinder and the spraying rod to rotate, the spraying rod rotates to conduct spraying, the spraying range is expanded, it is guaranteed that the catalytic liquid makes uniform contact with floating gas, and the dust removal efficiency is improved. Meanwhile, the concave dust filtering barrel can be in contact with the cleaning brush in the rotating process, and dust accumulated on the surface is cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical gas treatment, in particular to a harmful gas treatment device for chemical production. Background Art

[0002] Harmful gases are often produced in chemical operations. The conventional treatment method for harmful gases is to use a filter device to filter the gas and then discharge the gas that meets the emission standards into the atmosphere. During the absorption and treatment process of sulfur-containing waste gas by the spray tower, the waste gas will contain a large amount of dust and other particulate matter. If it is not filtered, it will accumulate on the gas reactor material (which absorbs or decomposes the waste gas) for a long time and block the gaps in the material, thereby affecting the treatment quality of the waste gas and causing the chemical gas to be unable to be effectively treated.

[0003] Therefore, a harmful gas treatment device for chemical production is needed to improve the above problems. Utility Model Content

[0004] The purpose of the present invention is to provide a harmful gas treatment device for chemical production to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The exhaust gas fan of the air filter is connected with the dried quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching ash|quenching

[0007] As a preferred solution of the present invention, a dust collecting funnel is provided at the lower end of the concave dust filter cylinder corresponding to the inner side of the filter bin, and a dust collecting box is provided at the lower end of the dust collecting funnel.

[0008] As a preferred solution of the present invention, the water inlet of the water pump is provided with two branch pipes, one branch pipe is connected upward to the bottom of the reaction chamber, and the other branch pipe is connected to the external catalytic liquid pool, and both branch pipes are provided with solenoid valves.

[0009] As a preferred solution of the present invention, a drainage outlet is fixedly provided on the bottom side wall of the reaction chamber.

[0010] A universal rotary joint is provided in the hollow position inside the transition box, and a bearing seat is provided in the upper end area of ​​the transition box, which serves as a rotation support structure for the lower part of the central control shaft.

[0011] A transparent graduated tube is provided on the side wall of the reaction chamber, and the bottom of the graduated tube is communicated with the reaction chamber for observing the liquid level in the reaction chamber.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. In the utility model, the exhaust gas is pumped into the filter chamber through the air intake pump, filtered through the concave dust filter cylinder, and then enters the ventilation cylinder and is discharged through the mesh. The water pump pumps the external catalytic liquid into the transition box through the pipeline, and enters the spray rod through the hollow shaft at the upper end of the transition box. The catalytic liquid is sprayed out through the spray rod to react with the reaction filler to catalytically decompose the exhaust gas, and then discharged through the exhaust port. At the same time, when the gas enters the ventilation cylinder, it blows the spiral fan blades, driving the hollow shaft to rotate, which will drive the concave dust filter cylinder and the spray rod to rotate. The spray rod will rotate to spray, expanding the spraying range. The concave dust filter cylinder will contact the cleaning brush to clean the dust accumulated on the surface to prevent the dust from rising to the reaction filler and causing blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall internal structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall external structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the transition box of the present utility model;

[0017] In the figure: 1. Exhaust port; 2. Treatment tower body; 3. Spray rod; 4. Hollow shaft; 5. Reaction filler; 6. Baffle; 7. Mesh; 8. Vent; 9. Concave dust filter; 10. Cleaning brush; 11. Transition box; 12. Dust collecting funnel; 13. Dust collecting box; 14. Filter chamber; 15. Water pump; 16. Air intake pump; 17. Drain port; 18. Reaction chamber; 19. Spiral fan blade; 20. Universal swivel joint; 21. Bearing seat; 22. Water pump outlet pipe; 23. Scale tube. DETAILED DESCRIPTION

[0018] A harmful gas treatment device for chemical production includes a treatment tower body 2, an exhaust port 1 is provided at the upper end of the treatment tower body 2, a filter chamber 14 is provided at the lower end of the inner side of the chemical gas treatment, a transition box 11 is fixedly provided inside the filter chamber 14, the transition box 11 is connected to a water pump 15 through a pipeline, the water pump 15 is fixed to the inner wall of the filter chamber 14, a hollow rotating shaft 4 is rotatably provided at the upper end of the transition box 11, a spray rod 3 is fixed at the upper end of the hollow rotating shaft 4, and the exhaust gas is blown into the filter chamber 14 through an air intake pump 16, the air intake pump 16 is fixed to the outer surface of the filter chamber 14, the air outlet of the air intake pump 16 is connected to the interior of the filter chamber 14, after being filtered by a concave dust filter cylinder 9, it enters the ventilation cylinder 8 and is discharged from the mesh 7, the water pump 15 pumps the external catalytic liquid into the transition chamber 11 through a pipeline, enters the spray rod 3 through the hollow rotating shaft 4 at the upper end of the transition box 11, and the catalytic liquid is sprayed out through the spray rod 3 to react with the reaction filler 5 to catalytically decompose the exhaust gas, and the exhaust gas is discharged from the exhaust port 1 after decomposition. The surface of the hollow rotating shaft 4 in the filter bin 14 is fixedly provided with a concave dust filter cartridge 9, and a cleaning brush 10 is fixedly provided in the filter bin 14, and the cleaning brush 10 is fitly connected to the outer surface of the concave dust filter cartridge 9, and a reaction chamber 18 is provided at the upper end of the interior of the processing tower body 2, and the reaction chamber 18 and the filter bin 14 are separated by a partition. The partition connects the reaction chamber 18 and the filter bin 14 through the vent tube 8, and a baffle 6 is fixedly provided at the upper end of the vent tube 8. The side wall of the upper half of the vent tube 8 is provided with several mesh holes 7, and a reaction filler 5 is provided inside the reaction bin 18. The hollow rotating shaft 4 passes through the reaction filler 5, and a spiral fan blade 19 is fixedly provided on the surface of the hollow rotating shaft 4 inside the vent tube 8. When the gas enters the vent tube 8, the spiral fan blade 19 is blown, driving the hollow rotating shaft 4 to rotate, which will drive the concave dust filter cartridge 9 and the spray rod 3 to rotate. The spray rod 3 will rotate to spray, expanding the spraying range, and the concave dust filter cartridge 9 will contact with the cleaning brush 10 to clean the dust accumulated on the surface.

[0019] A dust collecting funnel 12 may be provided at the lower end of the concave dust filter cylinder 9 on the inner side of the filter bin 14, and a dust collecting box 13 may be provided at the lower end of the dust collecting funnel 12. Dust is collected by the dust collecting funnel 12 and enters the dust collecting box 13. The dust collecting box 13 can be withdrawn, and the gap is sealed by a sealing strip in the working state to prevent air from escaping the gap.

[0020] Furthermore, the water inlet of water pump 15 is equipped with two branch pipes: one branch pipe connects upward to the bottom of reaction chamber 18, and the other branch pipe connects to the external catalytic liquid pool. Both branch pipes are equipped with solenoid valves. When the solenoid valve of the branch pipe connecting to the bottom of reaction chamber 18 is closed, and the solenoid valve of the branch pipe connecting to the external catalytic liquid pool is opened, water pump 15 draws liquid from the catalytic liquid pool. After a certain amount of liquid is drawn (the accumulated amount in reaction chamber 18 cannot exceed the height of mesh 7), the solenoid valve of the branch pipe connecting to the external catalytic liquid pool closes, and water pump 15 can then draw the reaction liquid from the bottom of reaction chamber 18 for recycling.

[0021] As a further improvement of the present invention, a drain port 17 is fixedly provided on the bottom surface of the reaction chamber 18 to discharge the liquid in the reaction chamber 18 when the function of the catalytic liquid is reduced.

[0022] A universal rotary joint 20 is provided in the hollow position inside the transition box 11, and a bearing seat 21 is provided in the upper end area of ​​the transition box 11. The bearing seat 21 serves as the rotation support structure of the lower part of the central control shaft 4. The transition box 11 is supported and fixed by a cross bar fixed inside the filter bin 14.

[0023] A transparent graduated tube 23 can be provided on the side wall of the reaction chamber 18. The bottom of the graduated tube 23 is communicated with the reaction chamber 18. The communicating vessel principle is used to observe the liquid level in the reaction chamber 18. When the liquid level reaches a certain scale, the exhaust gas is introduced to avoid insufficient catalytic liquid and incomplete gas treatment.

Claims

1. A harmful gas treatment device for chemical production, comprising a treatment tower body (2), an exhaust port (1) being provided at the upper end of the treatment tower body (2), characterized in that: The lower end of the inner side of the treatment tower body (2) is provided with a filter chamber (14), the outer surface of the filter chamber (14) is provided with an air intake pump (16), the air outlet of the air intake pump (16) is connected to the inside of the filter chamber (14), a transition box (11) is fixedly provided inside the filter chamber (14), the transition box (11) is connected to the water pump (15) through a pipeline, the water pump (15) is fixed to the inner wall of the filter chamber (14), the upper end of the transition box (11) is rotatably provided with a hollow shaft (4), the upper end of the hollow shaft (4) is fixedly provided with a spray rod (3), the surface of the hollow shaft (4) in the filter chamber (14) is fixedly provided with a concave dust filter cylinder (9), and the filter chamber (14) is fixedly provided with a cleaning The cleaning brush (10) is connected to the outer surface of the concave dust filter (9), and a reaction chamber (18) is provided inside the treatment tower body (2). The reaction chamber (18) and the filter chamber (14) are separated by a partition. The reaction chamber (18) and the filter chamber (14) are connected to each other through a vent tube (8) on the partition. A baffle (6) is fixed on the upper end of the vent tube (8). The side wall of the upper half of the vent tube (8) is provided with a plurality of mesh holes (7). A reaction filler (5) is provided inside the reaction chamber (18), and a hollow rotating shaft (4) passes through the reaction filler (5). A spiral fan blade (19) is fixed on the surface of the hollow rotating shaft (4) inside the vent tube (8).

2. The harmful gas treatment device for chemical production according to claim 1, characterized in that: A dust collecting funnel (12) is provided at the lower end of the concave dust filter cylinder (9) on the inner side of the filter bin (14), and a dust collecting box (13) is provided at the lower end of the dust collecting funnel (12).

3. The harmful gas treatment device for chemical production according to claim 1, characterized in that: The water inlet of the water pump (15) is provided with two branch pipes, one branch pipe is connected upwardly to the bottom of the reaction chamber (18), and the other branch pipe is connected to the external catalytic liquid pool, and both branch pipes are provided with solenoid valves.

4. The harmful gas treatment device for chemical production according to claim 1, characterized in that: A drainage outlet (17) is provided on the bottom side wall of the reaction chamber (18).

5. The harmful gas treatment device for chemical production according to claim 1, characterized in that: A universal rotary joint (20) is provided in the hollow position inside the transition box (11), and a bearing seat (21) is provided in the upper end area of ​​the transition box (11). The bearing seat (21) serves as a rotation support structure for the lower part of the central control shaft (4).

6. The harmful gas treatment device for chemical production according to claim 1, characterized in that: A transparent graduated tube (23) is provided on the side wall of the reaction chamber (18), and the bottom of the graduated tube (23) is in communication with the reaction chamber (18) for observing the liquid level in the reaction chamber (18).

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