A tail gas spray absorption tower

Abstract

The utility model discloses a tail gas spray absorption tower, which belongs to the technical field of tail gas spray absorption tower, and comprises: a spray tower, a liquid outlet pipeline is connected on the right side of the spray tower, a circulating pump is connected to the liquid outlet of the liquid outlet pipeline, a liquid inlet pipeline is connected to the liquid outlet of the circulating pump, a second protection box is fixedly installed on the top of the spray tower, a rotating joint is fixedly installed on the top of the second protection box, the outer side of the rotating joint is rotatably connected to the inside of the rotating joint, a rotating tube is rotatably connected to the inside of the rotating joint, a second motor is fixedly installed on the top of the spray tower, a rotating shaft is fixedly connected to the output end of the second motor, and a second gear is fixedly installed on the outer side of the rotating shaft. The utility model makes the contact between the neutralizing liquid and the tail gas more sufficient through the mutual cooperation between the second motor, the rotating shaft, the second gear, the third gear, the rotating tube, the liquid inlet pipeline, the circulating pump, the liquid outlet pipeline, the spray pipe and the spray head, so that the absorption efficiency of the tail gas is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas spray absorption towers, in particular to a tail gas spray absorption tower. Background Art

[0002] The exhaust gas absorption tower adopts the principle of gas-liquid countercurrent operation. The extracted exhaust gas enters the tower body from the bottom inlet of the absorption tower, flows from bottom to top, and is finally discharged from the pipeline outlet on the top of the equipment through the anti-corrosion fan; the spray liquid is sprayed evenly through the nozzle or liquid distributor, flows from top to bottom to the bottom of the tower, and is discharged from the tower through the pipeline; inside the absorption tower, the rising exhaust gas and the descending spray liquid are constantly in contact, the pollutants in the exhaust gas are continuously adsorbed, and the concentration becomes lower and lower. When it reaches the top of the tower, it has reached the absorption requirement and is then discharged.

[0003] The existing tail gas spray absorption tower does not have sufficient contact between the tail gas and the spray liquid, and the tail gas absorption efficiency is low; moreover, the spray liquid is mostly discharged directly from the tower body after spray adsorption, without circulating spraying, which is relatively wasteful; although some of them carry out circulating spraying, there is a problem that the spray liquid outlet at the bottom of the tower body is easily blocked; therefore, we propose a tail gas spray absorption tower to solve this problem. Utility Model Content

[0004] The utility model aims to provide a tail gas spray absorption tower to solve the problems raised in the above background technology.

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

[0006] A tail gas spray absorption tower comprises: a spray tower, wherein a liquid outlet pipe is connected to the right side of the spray tower, a liquid outlet of the liquid outlet pipe is connected to a circulation pump, a liquid outlet of the circulation pump is connected to a liquid inlet pipe, a second protection box is fixedly installed on the top of the spray tower, a rotating joint is fixedly installed on the top of the second protection box, the outer side of the rotating joint is rotatably connected to the inner side of the rotating joint, a rotating tube is rotatably connected to the inner side of the rotating joint, a second motor is fixedly installed on the top of the spray tower, a rotating shaft is fixedly connected to the output end of the second motor, a second gear is fixedly installed on the outer side of the rotating shaft, a third gear is meshed on the outer side of the second gear, the outer inner side of the third gear is fixedly installed on the outer side of the rotating tube, a plurality of spray pipes are fixedly connected to the outer side of the rotating tube, and a plurality of spray heads are fixedly connected to the bottom of each of the plurality of spray pipes.

[0007] Preferably, a filter screen plate is fixedly installed inside the right side of the spray tower, and the filter screen plate is arranged on the left side of the liquid outlet pipe. Rectangular slide grooves are opened on both sides inside the spray tower, and sliding columns are fixedly installed inside the two rectangular slide grooves. The outer sides of the two sliding columns are slidably connected to the same filter plate, and return springs are fixedly installed on both sides of the top of the filter plate, and the tops of the two return springs are fixedly installed on the corresponding rectangular slide groove top walls.

[0008] Preferably, a first protection box is fixedly installed on the left side of the spray tower, a first motor is fixedly installed inside the first protection box, a threaded rod is fixedly connected to the output end of the first motor, a T-shaped moving block is threadedly connected to the outer side of the threaded rod, a rack is fixedly installed on the front side of the T-shaped moving block, a first gear is meshed on the outer side of the rack, a rotating shaft is fixedly connected to the inside of the first gear, an eccentric wheel is fixedly connected to the outer side of the rotating shaft, and the outer side of the eccentric wheel is movably abutted against the bottom of the filter plate.

[0009] Preferably, the outer side of the top of the threaded rod is rotatably connected to the inside of the first protective box, a T-shaped slide groove is opened on the left side of the spray tower, the outer side of the T-shaped moving block is slidably connected in the T-shaped slide groove, and the outer side of the rotating shaft is rotatably connected to the inside of the spray tower.

[0010] Preferably, a support frame is fixedly installed on the right side of the spray tower, the outer side of the support frame is fixedly installed on the outer side of the circulation pump, a first control valve is arranged on the outer side of the liquid outlet pipe, and a gas pipeline is connected to the left side of the spray tower, and a third control valve is arranged on the outer side of the gas pipeline.

[0011] Preferably, the outer top of the rotating shaft is rotatably connected to the inside of the second protection box, a plurality of supporting legs are fixedly installed at the bottom of the spray tower, the top of the spray tower is connected to an exhaust pipe, and a second control valve is arranged on the outer side of the exhaust pipe.

[0012] In the utility model, the exhaust gas spray absorption tower starts the second motor to drive the rotating shaft to start rotating, and then drives the second gear to start rotating, thereby driving the third gear meshing with the second gear to start rotating, and further drives the rotating tube fixedly connected to the third gear to start rotating, thereby driving the spray pipe to start rotating, and further drives the spray head to start rotating so that the neutralizing liquid and the exhaust gas are in contact more fully, thereby making the exhaust gas absorption efficiency higher, and at the same time, the neutralizing liquid remains inside the spray tower after spraying;

[0013] In the utility model, the exhaust gas spray absorption tower described in the utility model drives the threaded rod to start rotating by starting the first motor, further drives the T-shaped moving block to start moving along the T-shaped slide groove, so that the T-shaped moving block drives the rack fixed thereto to start moving, and then drives the first gear meshing therewith to start rotating, thereby driving the rotating shaft to start rotating, and further drives the eccentric wheel to start rotating, so that the filter plate starts to move upward along the sliding column to compress the reset spring, and when the eccentric wheel rotates half a circle, the filter plate will move downward under the action of the reset spring, so when the eccentric wheel continues to rotate, the filter plate will cyclically move up and down, thereby driving the impurities at the bottom of the filter plate to fall, and preventing the possibility of the filter plate being blocked;

[0014] The utility model has a reasonable structural design. Through the mutual cooperation among the second motor, the rotating shaft, the second gear, the third gear, the rotating pipe, the liquid inlet pipe, the circulating pump, the liquid outlet pipe, the spray pipe and the spray head, the neutralizing liquid and the tail gas are in contact more fully, thereby making the tail gas absorption efficiency higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a tail gas spray absorption tower proposed by the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of a tail gas spray absorption tower proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the rotating shaft, eccentric wheel and filter plate proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the rotary joint, the second gear and the third gear proposed by the utility model;

[0019] Figure 5 for Figure 2 A partial enlarged view of part A.

[0020] In the figure: 1. spray tower; 2. first protection box; 3. second protection box; 4. circulation pump; 5. support frame; 6. liquid outlet pipe; 7. liquid inlet pipe; 8. rotary joint; 9. rotating pipe; 10. spray pipe; 11. spray head; 12. filter screen; 13. first motor; 14. threaded rod; 15. T-type moving block; 16. T-type slide; 17. rack; 18. first gear; 19. rotating shaft; 20. eccentric wheel; 21. filter plate; 22. rectangular slide; 23. sliding column; 24. reset spring; 25. second motor; 26. rotating shaft; 27. second gear; 28. third gear; 29. ​​exhaust pipe; 30. second control valve; 31. first control valve; 32. support leg; 33. gas pipeline; 34. third control valve. 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] Reference Figure 1-5 A tail gas spray absorption tower comprises: a spray tower 1, a liquid outlet pipe 6 is connected to the right side of the spray tower 1, the liquid outlet of the liquid outlet pipe 6 is connected to a circulation pump 4, the liquid outlet of the circulation pump 4 is connected to a liquid inlet pipe 7, a second protection box 3 is fixedly installed on the top of the spray tower 1, a rotary joint 8 is fixedly installed on the top of the second protection box 3, the outer side of the rotary joint 8 is rotatably connected to the inside of the rotary joint 8, and the inside of the rotary joint 8 is rotatably connected to a rotating tube 9, a second motor 25 is fixedly installed on the top of the spray tower 1, a rotating shaft 26 is fixedly connected to the output end of the second motor 25, a second gear 27 is fixedly installed on the outer side of the rotating shaft 26, a third gear 28 is meshed on the outer side of the second gear 27, and the outer inside of the third gear 28 is fixedly installed on the outer side of the rotating tube 9, a plurality of spray pipes 10 are fixedly connected to the outer side of the rotating tube 9, and a plurality of spray heads 11 are fixedly connected to the bottom of the plurality of spray pipes 10.

[0023] In this embodiment, a filter screen plate 12 is fixedly installed inside the right side of the spray tower 1, and the filter screen plate 12 is arranged on the left side of the liquid outlet pipe 6. Rectangular slide grooves 22 are opened on both sides of the spray tower 1, and sliding columns 23 are fixedly installed inside the two rectangular slide grooves 22. The outer sides of the two sliding columns 23 are slidably connected with the same filter plate 21, and reset springs 24 are fixedly installed on both sides of the top of the filter plate 21. The tops of the two reset springs 24 are fixedly installed on the corresponding top walls of the rectangular slide grooves 22, and the filter plate 21 can be reset by the reset springs 24.

[0024] In this embodiment, a first protective box 2 is fixedly installed on the left side of the spray tower 1, and a first motor 13 is fixedly installed inside the first protective box 2. A threaded rod 14 is fixedly connected to the output end of the first motor 13, and a T-shaped moving block 15 is threadedly connected to the outer side of the threaded rod 14. A rack 17 is fixedly installed on the front side of the T-shaped moving block 15, and a first gear 18 is meshed on the outer side of the rack 17. A rotating shaft 19 is fixedly connected inside the first gear 18, and an eccentric wheel 20 is fixedly connected to the outer side of the rotating shaft 19. The outer side of the eccentric wheel 20 movably abuts against the bottom of the filter plate 21, so that the eccentric wheel 20 can drive the filter plate 21 to move.

[0025] In this embodiment, the outer side of the top of the threaded rod 14 is rotatably connected to the inside of the first protective box 2, a T-shaped slide groove 16 is opened on the left side of the spray tower 1, the outer side of the T-shaped moving block 15 is slidably connected to the T-shaped slide groove 16, and the outer side of the rotating shaft 19 is rotatably connected to the inside of the spray tower 1, so that the T-shaped moving block 15 can be conveniently moved along the T-shaped slide groove 16.

[0026] In this embodiment, a support frame 5 is fixedly installed on the right side of the spray tower 1, and the outer side of the support frame 5 is fixedly installed on the outer side of the circulation pump 4. A first control valve 31 is arranged on the outer side of the liquid outlet pipe 6. A gas pipeline 33 is connected to the left side of the spray tower 1, and a third control valve 34 is arranged on the outer side of the gas pipeline 33. The outer side of the top of the rotating shaft 26 is rotatably connected to the inside of the second protection box 3. A plurality of support legs 32 are fixedly installed on the bottom of the spray tower 1. The top of the spray tower 1 is connected to an exhaust pipe 29, and a second control valve 30 is arranged on the outer side of the exhaust pipe 29 to facilitate the discharge of the neutralized exhaust gas through the exhaust pipe 29.

[0027] In this embodiment, when in use, by opening the second control valve 30, the neutralizing liquid is poured from the exhaust pipe 29 into the interior of the spray tower 1, and then the third control valve 34 is opened to allow the exhaust gas to flow into the spray tower 1 through the gas pipeline 33, and at the same time, the first control valve 31 is opened and the circulation pump 4 is started, thereby driving the neutralizing liquid to flow from the interior of the spray tower 1 to the liquid inlet pipe 7, and then to flow to the interior of the rotating pipe 9 and the spray pipe 10 through the liquid inlet pipe 7, and then the neutralizing liquid is sprayed through the spray head 11, and at the same time, the second motor 25 is started to drive the rotating shaft 26 to start rotating, and then drive the second gear 27 to start rotating, thereby driving the third gear 28 meshing therewith to start rotating, and further drive the rotating pipe 9 fixedly connected to the third gear 28 to start rotating, thereby driving the spray pipe 10 to start rotating, and further drive the spray head 11 to start rotating, so that the neutralizing liquid and the exhaust gas are in contact more fully, thereby making the exhaust gas absorption efficiency higher, and at the same time, the neutralizing liquid spray After the spraying is completed, it remains inside the spray tower 1. At the same time, the impurities generated by the exhaust gas are filtered through the filter plate 21. Then the first motor 13 is started to drive the threaded rod 14 to start rotating, and further drive the T-shaped moving block 15 to start moving along the T-shaped slide groove 16, so that the T-shaped moving block 15 drives the rack 17 fixed thereto to start moving, and then drives the first gear 18 meshing therewith to start rotating, thereby driving the rotating shaft 19 to start rotating, and further drives the eccentric wheel 20 to start rotating, so that the filter plate 21 starts to move upward along the sliding column 23 to compress the return spring 24. When the eccentric wheel 20 rotates half a circle, the filter plate 21 will move downward under the action of the return spring 24, so when the eccentric wheel 20 continues to rotate, the filter plate 21 will circulate up and down, thereby driving the impurities at the bottom of the filter plate 21 to fall off, preventing the filter plate 21 from being blocked, and at the same time filtering the circulating neutralization liquid through the filter mesh plate 12, so that the liquid outlet pipe 6 will not be blocked.

[0028] The above is a detailed introduction to a tail gas spray absorption tower provided by the utility model. This article uses specific embodiments to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A tail gas spray absorption tower, characterized in that: include: A spray tower (1), wherein the right side of the spray tower (1) is connected to a liquid outlet pipe (6), the liquid outlet of the liquid outlet pipe (6) is connected to a circulation pump (4), the liquid outlet of the circulation pump (4) is connected to a liquid inlet pipe (7), a second protection box (3) is fixedly installed on the top of the spray tower (1), a rotating joint (8) is fixedly installed on the top of the second protection box (3), the outer side of the rotating joint (8) is rotatably connected to the inside of the rotating joint (8), the inside of the rotating joint (8) is rotatably connected to a rotating pipe (9), and the spray tower ( 1) A second motor (25) is fixedly mounted on the top, an output end of the second motor (25) is fixedly connected to a rotating shaft (26), a second gear (27) is fixedly mounted on the outer side of the rotating shaft (26), a third gear (28) is meshed on the outer side of the second gear (27), the outer inner side of the third gear (28) is fixedly mounted on the outer side of a rotating tube (9), a plurality of spray pipes (10) are fixedly connected to the outer side of the rotating tube (9), and a plurality of spray heads (11) are fixedly connected to the bottom of each of the plurality of spray pipes (10).

2. A tail gas spray absorption tower according to claim 1, characterized in that: A filter screen plate (12) is fixedly installed inside the right side of the spray tower (1), and the filter screen plate (12) is arranged on the left side of the liquid outlet pipe (6). Rectangular slide grooves (22) are opened on both sides of the spray tower (1), and sliding columns (23) are fixedly installed inside the two rectangular slide grooves (22). The outer sides of the two sliding columns (23) are slidably connected to the same filter plate (21), and return springs (24) are fixedly installed on both sides of the top of the filter plate (21), and the tops of the two return springs (24) are fixedly installed on the corresponding top walls of the rectangular slide grooves (22).

3. A tail gas spray absorption tower according to claim 2, characterized in that: A first protection box (2) is fixedly installed on the left side of the spray tower (1), a first motor (13) is fixedly installed inside the first protection box (2), a threaded rod (14) is fixedly connected to the output end of the first motor (13), a T-shaped moving block (15) is threadedly connected to the outer side of the threaded rod (14), a rack (17) is fixedly installed on the front side of the T-shaped moving block (15), a first gear (18) is meshed with the outer side of the rack (17), a rotating shaft (19) is fixedly connected inside the first gear (18), an eccentric wheel (20) is fixedly connected to the outer side of the rotating shaft (19), and the outer side of the eccentric wheel (20) is movably abutted against the bottom of the filter plate (21).

4. A tail gas spray absorption tower according to claim 3, characterized in that: The outer side of the top of the threaded rod (14) is rotatably connected to the inside of the first protection box (2), a T-shaped slide groove (16) is provided on the left side of the spray tower (1), the outer side of the T-shaped moving block (15) is slidably connected to the T-shaped slide groove (16), and the outer side of the rotating shaft (19) is rotatably connected to the inside of the spray tower (1).

5. The tail gas spray absorption tower according to claim 1, characterized in that: A support frame (5) is fixedly installed on the right side of the spray tower (1), and the outer side of the support frame (5) is fixedly installed on the outer side of the circulation pump (4). A first control valve (31) is arranged on the outer side of the liquid outlet pipeline (6). A gas pipeline (33) is connected to the left side of the spray tower (1), and a third control valve (34) is arranged on the outer side of the gas pipeline (33).

6. The tail gas spray absorption tower according to claim 1, characterized in that: The outer side of the top of the rotating shaft (26) is rotatably connected to the inside of the second protection box (3); a plurality of supporting legs (32) are fixedly installed at the bottom of the spray tower (1); the top of the spray tower (1) is connected to an exhaust pipe (29); and a second control valve (30) is arranged on the outer side of the exhaust pipe (29).

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