Submerged arc furnace tail gas purification system

Abstract

The utility model relates to the field of submerged arc furnaces, and discloses a submerged arc furnace tail gas purification system which comprises a purification barrel, and the top of the purification barrel is fixedly communicated with an air outlet pipe. A water pump is arranged at the bottom of the front side of the purification barrel, the input end of the water pump fixedly communicates with a water pumping pipe, the other end of the water pumping pipe is connected with the bottom of the purification barrel, the water pumping pipe communicates with the interior of the purification barrel, and the output end of the water pump fixedly communicates with a water conveying pipe which extends upwards along the front side of the purification barrel. The rear side wall of the water conveying pipe fixedly communicates with a plurality of branch pipes, the branch pipes penetrate through the purification barrel and extend into the purification barrel, and the branch pipes are fixedly connected with the purification barrel; and the outer wall of each branch pipe fixedly communicates with a plurality of spraying pipes which are distributed in a concentric ring shape, spraying holes which are evenly distributed are formed in the bottoms of the spraying pipes, and the right side wall of the purification barrel fixedly communicates with a first air inlet pipe.

Description

Technical Field

[0001] The utility model relates to the field of submerged arc furnaces, and in particular to an exhaust gas purification system of a submerged arc furnace. Background Art

[0002] During the operation of industrial equipment such as ore-fired furnaces, the emission of exhaust gas is often accompanied by a large amount of particulate matter and harmful gases. These exhaust gases are directly discharged into the atmosphere, which not only causes serious pollution to the environment, but also may pose a threat to people's health.

[0003] Current purification systems often only use a single purification method, such as a single dry filtration or wet filtration. This method cannot completely remove all harmful components in the exhaust gas, resulting in poor purification effect. In order to improve the purification effect, some traditional purification systems will adopt a more complex structure, which not only increases the manufacturing cost of the system, but also increases the difficulty of subsequent maintenance. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the utility model provides a submerged arc furnace tail gas purification system.

[0005] The technical solution adopted by this utility model:

[0006] A submerged arc furnace tail gas purification system comprises a purification barrel, the top of the purification barrel is fixedly connected with an air outlet pipe; an exhaust fan is arranged on the inner wall of the air outlet pipe; a water pump is arranged at the bottom of the front side of the purification barrel, the input end of the water pump is fixedly connected with a water pumping pipe, the other end of the water pumping pipe is connected with the bottom of the purification barrel, the water pumping pipe is connected with the inside of the purification barrel, the output end of the water pump is fixedly connected with a water delivery pipe, the water delivery pipe extends upward along the front side of the purification barrel, and the rear side wall of the water delivery pipe is fixedly connected with a plurality of branch pipes, the branch pipes penetrate the purification barrel and extend into the purification barrel The branch pipe is fixedly connected to the purification barrel; the outer wall of each branch pipe is fixedly connected with a plurality of spray pipes distributed in concentric rings, and the bottom of the spray pipe is provided with evenly distributed spray holes. The right side wall of the purification barrel is fixedly connected with an air inlet pipe 1, and the air inlet pipe 1 is located at the lower part of the lowest spray pipe. The right side of the purification barrel has a dry filter structure 1 and a dry filter structure 2, and the dry filter structure 1 and the dry filter structure 2 have the same structure. The dry filter structure 1 is connected with the air inlet pipe 1, and the dry filter structure 1 is connected with the dry filter structure 2.

[0007] The dry filtering structure 1 includes a bracket, the top of the bracket is fixedly connected to a filter barrel, the bottom of the filter barrel is funnel-shaped and fixedly connected to a sewage pipe, the sewage pipe is equipped with a valve, the bottom of the right side wall of the filter barrel is fixedly connected to an air inlet pipe 2, the top of the filter barrel is plugged into a dry filter box, the upper part of the dry filter box is fixedly connected to the filter barrel by bolts, the top of the dry filter box is fixedly connected to a ventilation pipe, and an exhaust fan 2 is installed on the inner side of the middle part of the ventilation pipe.

[0008] The ventilation pipe of the dry-type filtering structure one is fixedly connected to the air inlet pipe one, and the ventilation pipe of the dry-type filtering structure two is fixedly connected to the air inlet pipe two of the dry-type filtering structure one.

[0009] The upper part of the dry filter box is open, and the bottom of the filter box is provided with filter holes, and the filter material is placed in the dry filter box.

[0010] Beneficial effects of the utility model:

[0011] The utility model adopts a multiple filtering method of first dry and then wet, which can more thoroughly remove particulate matter and harmful gases in the exhaust gas and improve the purification effect. The whole system structure is relatively simple and easy to install and maintain. By setting a drain pipe and a valve, the dust and particulate matter accumulated in the filter barrel can be easily discharged to maintain the continuous and efficient operation of the system. The dry filter box adopts a detachable design, which is convenient for replacement and cleaning. While ensuring the filtering effect, it also increases the flexibility of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a top view of the utility model;

[0014] Figure 3 yes Figure 2 Sectional view at AA;

[0015] Figure 4 It is a front view of the utility model;

[0016] Figure 5 yes Figure 4 Sectional view at the middle BB;

[0017] Figure 6 yes Figure 4 Cross-sectional view at CC.

[0018] In all the drawings, the specific reference numerals are: 1. purification barrel; 2. air outlet pipe; 3. exhaust fan 1; 4. water pump; 5. suction pipe; 6. water supply pipe; 7. branch pipe; 8. spray pipe; 9. spray hole; 10. air inlet pipe 1; 11. bracket; 12. filter barrel; 13. sewage pipe; 14. air inlet pipe 2; 15. dry filter box; 16. ventilation pipe; 17. exhaust fan 2; 18. dry filter structure 1; 19. dry filter structure 2; 20. round pipe; 21. water supply pipe. DETAILED DESCRIPTION

[0019] like Figure 1-6As shown: a submerged arc furnace tail gas purification system, including a purification barrel 1, the top of the purification barrel 1 is fixedly connected with an air outlet pipe 2; an exhaust fan 3 is arranged on the inner wall of the air outlet pipe 2, a water pump 4 is arranged at the front bottom of the purification barrel 1, the input end of the water pump 4 is fixedly connected with a water pump 5, the other end of the water pump 5 is connected to the bottom of the purification barrel 1, the water pump 5 is connected with the inside of the purification barrel 1, the output end of the water pump 4 is fixedly connected with a water delivery pipe 6, the water delivery pipe 6 extends upward along the front side of the purification barrel 1, and the rear side wall of the water delivery pipe 6 is fixedly connected with a plurality of branch pipes 7, the branch pipes 7 penetrate the purification barrel 1 and extend to the inside of the purification barrel 1, The branch pipe 7 is fixedly connected to the purification barrel 1; the outer wall of each branch pipe 7 is fixedly connected to a plurality of spray pipes 8 distributed in concentric rings, and the bottom of the spray pipe 8 is provided with evenly distributed spray holes 9. The right side wall of the purification barrel 1 is fixedly connected to an air intake pipe 10, and the air intake pipe 10 is located at the lower part of the lowest spray pipe 8. The right side of the purification barrel 1 has a dry filter structure 18 and a dry filter structure 2 19. The dry filter structure 18 and the dry filter structure 2 19 have the same structure. The dry filter structure 18 is connected to the air intake pipe 10, and the dry filter structure 19 is connected to the dry filter structure 2 18.

[0020] The dry filtering structure 19 includes a bracket 11, the top of the bracket 11 is fixedly connected to a filter barrel 12, the bottom of the filter barrel 12 is funnel-shaped and fixedly connected to a sewage pipe 13, the sewage pipe 13 is equipped with a valve, the bottom of the right side wall of the filter barrel 12 is fixedly connected to an air intake pipe 14, the top of the filter barrel 12 is plugged with a dry filter box 15, the upper part of the dry filter box 15 is fixedly connected to the filter barrel 12 by bolts, the top of the dry filter box 15 is fixedly connected to a ventilation pipe 16, and an exhaust fan 17 is installed on the inner side of the middle part of the ventilation pipe 16.

[0021] The ventilation pipe 16 of the dry filter structure one is fixedly connected to the air inlet pipe one 10, and the ventilation pipe 16 of the dry filter structure two is fixedly connected to the air inlet pipe two 14 of the dry filter structure one.

[0022] The dry filter box 15 has an opening at the top and a filter hole at the bottom. Filter material is placed in the dry filter box 15 .

[0023] The tail gas generated by the ore-fired furnace first enters the purification system through the air inlet pipe 2 14 of the dry filter structure 2;

[0024] First dry filtration: The exhaust gas enters the dry filtration structure 18. In the filter barrel 12, the exhaust gas is initially filtered through the dry filter box 15 to remove larger particles and dust. The exhaust fan 2 17 provides the necessary air flow to ensure that the exhaust gas passes through the filter box smoothly.

[0025] Second dry filtration: The exhaust gas after the first filtration enters the dry filtration structure 19 for the second dry filtration, which can further remove smaller particles in the exhaust gas and impurities that were not captured in the first stage.

[0026] Wet filtration: After two dry filtrations, the exhaust gas enters the purification barrel 1 from the air inlet pipe 10. At this time, the water pump 4 starts to work. There is medicine in the purification barrel 1, which is transported to the spray pipe 8 through the water pipe 6 and the branch pipe 7. The spray hole 9 at the bottom of the spray pipe 8 evenly sprays the medicine into the exhaust gas for wet filtration to remove harmful gases and residual particulate matter in the exhaust gas.

[0027] Exhaust gas discharge: The exhaust gas after wet filtration is discharged through the air outlet pipe 2 on the top of the purification barrel 1, and the exhaust fan 3 ensures that the exhaust gas is discharged smoothly;

[0028] Drainage: After a period of operation, a certain amount of dust and particles will accumulate in the filter barrel 12. At this time, the valve of the drainage pipe 13 can be opened to discharge the accumulated dust and particles. After a period of operation, open the valve of the circular pipe 20 to discharge the waste liquid in the purification barrel 1, and add liquid from the upper water pipe 21. The upper water pipe 21 is fixedly connected to the upper wall of the purification barrel 1. The upper water pipe 21 is connected to the interior of the purification barrel 1, and a valve is set on the upper water pipe 21. The upper part of the dry filter box 15 is fixedly connected to the filter barrel 12 by bolts, so that the dry filter box 15 and the filter barrel 12 are detachable structures.

[0029] The present utility model only protects the mechanical part, and the related functions realized by the software control part are not within the protection scope of the present utility model.

Claims

1. A submerged arc furnace tail gas purification system, comprising a purification barrel (1), the top of the purification barrel (1) is fixedly connected to an air outlet pipe (2), characterized in that: An exhaust fan (3) is arranged on the inner wall of the air outlet pipe (2); a water pump (4) is arranged at the bottom of the front side of the purification barrel (1); an input end of the water pump (4) is fixedly connected to a water extraction pipe (5); the other end of the water extraction pipe (5) is connected to the bottom of the purification barrel (1); the water extraction pipe (5) is connected to the inside of the purification barrel (1); an output end of the water pump (4) is fixedly connected to a water delivery pipe (6); the water delivery pipe (6) extends upward along the front side of the purification barrel (1); a plurality of branch pipes (7) are fixedly connected to the rear side wall of the water delivery pipe (6); the branch pipes (7) penetrate the purification barrel (1) and extend to the inside of the purification barrel (1); the branch pipes (7) are fixedly connected to the purification barrel (1); and the outer wall of each branch pipe (7) is fixedly connected to a plurality of The spray pipes (8) are arranged in a concentric ring shape, and the bottom of the spray pipes (8) is provided with evenly distributed spray holes (9). The right side wall of the purification barrel (1) is fixedly connected with an air intake pipe (10), and the air intake pipe (10) is located at the lower part of the lowest spray pipe (8). The right side of the purification barrel (1) has a dry filter structure (18) and a dry filter structure (19). The dry filter structure (18) and the dry filter structure (19) have the same structure. The dry filter structure (18) is connected with the air intake pipe (10), and the dry filter structure (18) and the dry filter structure (19) are connected. The bottom of the outer wall of the purification barrel (1) is fixedly connected with a circular pipe (20), and the circular pipe (20) is provided with a valve.

2. The ore-fired furnace tail gas purification system according to claim 1, characterized in that: The dry filtering structure (18) comprises a bracket (11), the top of the bracket (11) is fixedly connected to a filter barrel (12), the bottom of the filter barrel (12) is funnel-shaped and fixedly connected to a sewage discharge pipe (13), the sewage discharge pipe (13) is installed with a valve, the bottom of the right side wall of the filter barrel (12) is fixedly connected to an air intake pipe (14), the top of the filter barrel (12) is plugged with a dry filter box (15), the upper part of the dry filter box (15) is fixedly connected to the filter barrel (12) by bolts, the top of the dry filter box (15) is fixedly connected to a ventilation pipe (16), and an exhaust fan (17) is installed on the inner side of the middle part of the ventilation pipe (16).

3. The ore-fired furnace tail gas purification system according to claim 2, characterized in that: The ventilation pipe (16) of the dry filter structure one (18) is fixedly connected to the air intake pipe one (10), and the ventilation pipe (16) of the dry filter structure two (19) is fixedly connected to the air intake pipe two (14) of the dry filter structure one.

4. The ore-fired furnace tail gas purification system according to claim 1, characterized in that: The upper part of the dry filter box (15) is open, the bottom of the filter box (15) is provided with filter holes, and filter material is placed in the dry filter box (15).

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