Spraying absorption gas treatment tower

Abstract

The utility model discloses a spraying absorption gas treatment tower, which belongs to the technical field of gas treatment towers and comprises a liquid collecting barrel, an absorption tower is fixedly connected to the top of the liquid collecting barrel, and a lower rotating pipe is rotatably connected to the bottom of the liquid collecting barrel. According to the device, a servo motor is used for driving a first gear to rotate, an upper rotating pipe, an upper liquid spraying box, a transmission column, a stirring fan and a lower air spraying box are driven to rotate through meshing transmission between the first gear and a second gear, and tail gas is guided into an inner cavity of the lower air spraying box through an air guide pipe, a one-way valve, a first rotating connector and a lower rotating pipe; the tail gas in the lower gas spraying box is rotationally sprayed into the deacidification agent in the liquid collecting barrel from the lower gas spraying holes, and the deacidification agent and the tail gas in the inner cavity of the absorption tower body are stirred by the stirring fan, so that the tail gas and the deacidification agent are fully mixed, acidic substances in the tail gas are fully absorbed, and the practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of gas treatment towers, and more specifically, to a spray absorption gas treatment tower. Background Art

[0002] Chlorinated polyethylene is a saturated polymer material, with a white powder appearance, non-toxic and odorless, having excellent weather resistance, ozone resistance, chemical resistance and aging resistance, having good oil resistance, flame retardancy and coloring properties. In the production equipment of chlorinated polyethylene, a large amount of acidic substances are contained in the tail gas after the reaction, so the acidic gas needs to be treated.

[0003] After retrieval, the utility model patent with the publication number of CN211098306U discloses a tail gas absorption device for chlorinated polyethylene production, which solves the problems that the contact area between the tail gas and the absorption liquid becomes smaller and smaller, resulting in a decrease in the treatment efficiency of the tail gas treatment device and a deterioration in the treatment effect. The device includes a liquid collection cylinder and a water pump. An air inlet pipe is arranged on one side of the liquid collection cylinder, a discharge hopper is arranged at the bottom end of the liquid collection cylinder, and an absorption cylinder communicated with the inside of the liquid collection cylinder is arranged at the upper end of the liquid collection cylinder. A top plate is fixed at the top end of the absorption cylinder, a spray layer is installed at the bottom of the top plate, and a first air hole plate, a second air hole plate and a third air hole plate are sequentially arranged in the absorption cylinder from bottom to top. The inner diameters of the air holes on the first air hole plate, the second air hole plate and the third air hole plate decrease in sequence. This device makes the bubbles generated by the tail gas decrease sequentially during the rising process, thereby increasing the contact area between the tail gas and the absorption liquid and improving the absorption effect.

[0004] However, the above patent still has the following deficiencies: the position where the tail gas enters the liquid collection cylinder is fixed, the contact effect between the tail gas and the absorption liquid is poor, and the position where the liquid is sprayed below the spray layer is fixed, which is not convenient for full contact with the tail gas. Therefore, we propose a spray absorption gas treatment tower. Summary of the Utility Model

[0005] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a spray absorption gas treatment tower.

[0006] To solve the above problems, the utility model adopts the following technical solutions:

[0007] A spray absorption gas treatment tower, comprising a liquid collecting cylinder body, a top of the liquid collecting cylinder body is fixedly connected with an absorption tower body, a bottom of the liquid collecting cylinder body is rotatably connected with a lower rotating pipe, a top end of the lower rotating pipe extends into an inner cavity of the liquid collecting cylinder body and is fixedly connected with a lower jet box, a top surface of the lower jet box is provided with a plurality of lower jet holes, a top of the absorption tower body is rotatably connected with an upper rotating pipe, a bottom end of the upper rotating pipe extends into the inner cavity of the absorption tower body and is fixedly connected with an upper liquid spraying box, a bottom surface of the upper liquid spraying box is provided with a plurality of liquid spraying holes, a transmission column is fixedly connected between the upper liquid spraying box and the lower jet box, two stirring fans are fixedly connected to a side part of the transmission column, a liquid pumping mechanism is arranged on a side part of the liquid collecting cylinder body, an exhaust mechanism is arranged on a side part of the absorption tower body, an outer side of a top end of the upper rotating pipe is fixedly sleeved with a second gear, a servo motor is fixedly installed on a top surface of the absorption tower body, an output shaft of the servo motor is fixedly sleeved with a first gear, and the first gear and the second gear are meshed with each other.

[0008] As a preferred solution of the present utility model, the liquid pumping mechanism includes a liquid pumping pump fixedly installed on a side part of the liquid collecting cylinder body, two ends of the liquid pumping pump are respectively fixedly connected with liquid pumping pipes, an end of one of the liquid pumping pipes extends into the inner cavity of the liquid collecting cylinder body, an end of the other liquid pumping pipe is fixedly connected with a second rotary joint, and a bottom end of the second rotary joint is fixedly sleeved on a top end of the upper rotating pipe.

[0009] As a preferred solution of the present utility model, the exhaust mechanism includes an air outlet pipe fixedly connected to a side part of the absorption tower body, an end of the air outlet pipe is fixedly sleeved with a fixed sleeve, an end of the fixed sleeve is fixedly connected with a filter water tank, a support frame is arranged in an inner cavity of the filter water tank, a water-absorbing desiccant is placed on a top surface of the support frame, a sealing cover is hinged to a top of the filter water tank, a drain valve is fixedly installed at a bottom of the filter water tank, and an exhaust pipe is fixedly sleeved on a side part of the filter water tank.

[0010] As a preferred solution of the present utility model, a bottom end of the lower rotating pipe is fixedly sleeved with a first rotary joint, a bottom end of the first rotary joint is fixedly connected with a check valve, and a bottom end of the check valve is fixedly connected with a gas guide pipe.

[0011] As a preferred solution of the present utility model, a switching valve is fixedly installed on a bottom surface of the liquid collecting cylinder body, and a top end of the switching valve extends into the inner cavity of the liquid collecting cylinder body.

[0012] As a preferred solution of the present utility model, an inlet pipe is fixedly sleeved on a side part of the absorption tower body, two air hole plates are fixedly sleeved in an inner cavity of the absorption tower body, and the transmission column penetrates through a middle part of the air hole plates.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] (1) In this utility model, a servo motor is used to drive the first gear to rotate. Through the meshing transmission between the first gear and the second gear, the upper rotating pipe, the upper liquid spraying box, the transmission column, the stirring fan and the lower air jetting box are driven to rotate. The tail gas is introduced into the inner cavity of the lower air jetting box by means of an air guide pipe, a one-way valve, a first rotary joint and a lower rotating pipe, and the tail gas in the lower air jetting box is rotated and sprayed from the lower air jet holes into the deacidifying agent in the liquid collecting cylinder body. The stirring fan is used to stir the deacidifying agent and the tail gas in the inner cavity of the absorption tower body, ensuring the full mixing of the tail gas and the deacidifying agent, so as to ensure the full absorption of the acidic substances in the tail gas.

[0015] (2) In this utility model, when the tail gas moves through the deacidifying agent to the upper part of the inner cavity of the absorption tower body, a liquid extraction pump, a liquid extraction pipe, a second rotary joint and an upper rotating pipe are used to introduce the deacidifying agent into the upper liquid spraying box. The deacidifying agent in the inner cavity of the upper liquid spraying box is rotated and sprayed from the liquid spraying holes through the rotating upper liquid spraying box, so that the deacidifying agent is sprayed onto the tail gas, realizing the re-absorption treatment of the acidic substances in the tail gas and improving the working quality of the spray absorption gas treatment tower. Description of the Drawings

[0016] Figure 1 is a schematic structural view of the front of this utility model;

[0017] Figure 2 is a schematic structural view of the back of this utility model;

[0018] Figure 3 is a schematic sectional view of this utility model;

[0019] Figure 4 is a schematic sectional view of the filter water tank of this utility model.

[0020] Explanation of the reference numerals in the drawings:

[0021] 1. Liquid collecting cylinder body; 2. Absorption tower body; 3. Exhaust mechanism; 4. Lower rotating pipe; 5. Lower air jetting box; 6. Lower air jet holes; 7. Upper rotating pipe; 8. Upper liquid spraying box; 9. Liquid spraying holes; 10. Transmission column; 11. Stirring fan; 12. Servo motor; 13. First gear; 14. Second gear; 15. Liquid extraction mechanism; 16. Liquid extraction pump; 17. Liquid extraction pipe; 18. Second rotary joint; 19. Air outlet pipe; 20. Fixed sleeve; 21. Filter water tank; 22. Exhaust pipe; 23. Support frame; 24. Sealing cover; 25. Water-absorbing desiccant; 26. Drain valve; 27. First rotary joint; 28. One-way valve; 29. Air guide pipe; 30. Switch valve; 31. Inlet pipe; 32. Air hole plate. Detailed Embodiments

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Embodiment:

[0026] Please refer to Figures 1-4 , a spray absorption gas treatment tower, including a liquid collection cylinder body 1. The top of the liquid collection cylinder body 1 is fixedly connected with an absorption tower body 2. The bottom of the liquid collection cylinder body 1 is rotatably connected with a lower rotating pipe 4. The top end of the lower rotating pipe 4 extends into the inner cavity of the liquid collection cylinder body 1 and is fixedly connected with a lower jet box 5. A plurality of lower jet holes 6 are opened on the top surface of the lower jet box 5. The top of the absorption tower body 2 is rotatably connected with an upper rotating pipe 7. The bottom end of the upper rotating pipe 7 extends into the inner cavity of the absorption tower body 2 and is fixedly connected with an upper liquid spray box 8. A plurality of liquid spray holes 9 are opened on the bottom surface of the upper liquid spray box 8. A transmission column 10 is fixedly connected between the upper liquid spray box 8 and the lower jet box 5. Two stirring fans 11 are fixedly connected to the side of the transmission column 10. A liquid pumping mechanism 15 is arranged on the side of the liquid collection cylinder body 1. An exhaust mechanism 3 is arranged on the side of the absorption tower body 2. The outer side of the top end of the upper rotating pipe 7 is fixedly sleeved with a second gear 14. A servo motor 12 is fixedly installed on the top surface of the absorption tower body 2. The output shaft of the servo motor 12 is fixedly sleeved with a first gear 13. The first gear 13 and the second gear 14 are meshed with each other.

[0027] Specifically, please refer to Figure 1 and Figure 2 , the liquid pumping mechanism 15 includes a liquid pump 16 fixedly installed on the side of the liquid collection cylinder 1. Both ends of the liquid pump 16 are fixedly connected with liquid pumping pipes 17. The end of one liquid pumping pipe 17 extends into the inner cavity of the liquid collection cylinder 1, and the end of the other liquid pumping pipe 17 is fixedly connected with a second rotary joint 18. The bottom end of the second rotary joint 18 is fixedly sleeved on the top end of the upper rotating pipe 7.

[0028] Specifically, please refer to Figure 1 , Figure 3 and Figure 4 , the exhaust mechanism 3 includes an air outlet pipe 19 fixedly connected to the side of the absorption tower body 2. The end of the air outlet pipe 19 is fixedly sleeved with a fixed sleeve 20. The end of the fixed sleeve 20 is fixedly connected with a filter water tank 21. A support frame 23 is arranged in the inner cavity of the filter water tank 21. A water absorption desiccant 25 is placed on the top surface of the support frame 23. A sealing cover 24 is hinged to the top of the filter water tank 21. A drain valve 26 is fixedly installed at the bottom of the filter water tank 21. An exhaust pipe 22 is fixedly sleeved on the side of the filter water tank 21.

[0029] In this embodiment, the water absorption desiccant 25 is used to absorb the liquid in the treated tail gas, the support frame 23 is used to support the water absorption desiccant 25, and the drain valve 26 is used to discharge the liquid that has fallen to the bottom of the inner cavity of the filter water tank 21.

[0030] Specifically, please refer to Figure 3 , the bottom end of the lower rotating pipe 4 is fixedly sleeved with a first rotary joint 27. The bottom end of the first rotary joint 27 is fixedly connected with a check valve 28. The bottom end of the check valve 28 is fixedly connected with a guide pipe 29.

[0031] In this embodiment, the tail gas is introduced into the inner cavity of the lower jet box 5 by means of the guide pipe 29, the check valve 28, the first rotary joint 27 and the lower rotating pipe 4. The check valve 28 only allows the gas in the guide pipe 29 to enter the first rotary joint 27.

[0032] Specifically, please refer to Figure 1 and Figure 3 , a switch valve 30 is fixedly installed on the bottom surface of the liquid collection cylinder 1. The top end of the switch valve 30 extends into the inner cavity of the liquid collection cylinder 1.

[0033] In this embodiment, the absorption liquid in the liquid collection cylinder 1 is discharged through the switch valve 30.

[0034] Specifically, please refer to Figure 1 and Figure 3 , a liquid inlet pipe 31 is fixedly sleeved on the side of the absorption tower body 2. Two air hole plates 32 are fixedly sleeved in the inner cavity of the absorption tower body 2. The transmission column 10 penetrates through the middle of the air hole plate 32.

[0035] In this embodiment, the absorption liquid is filled into the inner cavities of the liquid collecting cylinder body 1 and the absorption tower body 2 through the liquid inlet pipe 31. In addition, the pore diameter of the upper air hole plate 32 is small, and the pore diameter of the lower air hole plate 32 is large.

[0036] Working principle: When in use, first put the deacidifying agent into the inner cavities of the liquid collecting cylinder body 1 and the absorption tower body 2 from the liquid inlet pipe 31, and make the deacidifying agent submerge the upper stirring fan 11. Then start the servo motor 12 to drive the first gear 13 to rotate, and drive the upper rotating pipe 7 to rotate by means of the meshing transmission between the first gear 13 and the second gear 14. Drive the upper liquid spraying box 8, the transmission column 10, the stirring fan 11, the lower air spraying box 5 and the lower rotating pipe 4 to rotate synchronously by means of the upper rotating pipe 7. In addition, start the liquid extraction pump 16 to pump the deacidifying agent in the inner cavity of the liquid collecting cylinder body 1 into the liquid extraction pipe 17, and introduce it into the inner cavity of the upper liquid spraying box 8 through the second rotary joint 18 and the upper rotating pipe 7, so that the deacidifying agent in the upper liquid spraying box 8 sprays out from the liquid spraying holes 9. Then introduce the tail gas into the lower air spraying box 5 from the air guide pipe 29, the one-way valve 28, the first rotary joint 27 and the lower rotating pipe 4, and make the tail gas in the lower air spraying box 5 rotate and spray into the deacidifying agent in the inner cavity of the liquid collecting cylinder body 1 from the lower air spraying holes 6. At the same time, the tail gas enters the bottom of the inner cavity of the absorption tower body 2. Use the stirring fan 11 to stir the deacidifying agent and the tail gas, so that the tail gas fully contacts and mixes with the deacidifying agent in the liquid collecting cylinder body 1. When the tail gas passes through the deacidifying agent and enters the upper part of the inner cavity of the absorption tower body 2, the tail gas contacts the deacidifying agent sprayed out rotationally from the liquid spraying holes 9 at this time, realizing the secondary treatment of the acidic substances in the tail gas. Finally, the treated tail gas enters the inner cavity of the water filtering tank 21 from the air outlet pipe 19 and the fixed sleeve 20, and uses the water absorbing desiccant 25 in the inner cavity of the water filtering tank 21 to absorb the residual liquid in the tail gas. The absorbed tail gas is discharged from the exhaust pipe 22, and that's it.

[0037] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A spray absorption gas treatment tower, comprising a liquid collecting cylinder (1), characterized in that: The top of the liquid collecting cylinder (1) is fixedly connected to an absorption tower body (2); the bottom of the liquid collecting cylinder (1) is rotatably connected to a lower rotating tube (4); the top end of the lower rotating tube (4) extends to the inner cavity of the liquid collecting cylinder (1) and is fixedly connected to a lower jet box (5); the top surface of the lower jet box (5) is provided with a plurality of lower jet holes (6); the top of the absorption tower body (2) is rotatably connected to an upper rotating tube (7); the bottom end of the upper rotating tube (7) extends to the inner cavity of the absorption tower body (2) and is fixedly connected to an upper liquid spray box (8); the bottom surface of the upper liquid spray box (8) is provided with a plurality of liquid spray holes (9); A transmission column (10) is fixedly connected between the box (8) and the lower jet box (5); two stirring fans (11) are fixedly connected to the side of the transmission column (10); a liquid extraction mechanism (15) is arranged on the side of the liquid collecting cylinder (1); an exhaust mechanism (3) is arranged on the side of the absorption tower body (2); a second gear (14) is fixedly sleeved on the outer side of the top end of the upper rotating tube (7); a servo motor (12) is fixedly installed on the top surface of the absorption tower body (2); a first gear (13) is fixedly sleeved on the output shaft of the servo motor (12); and the first gear (13) and the second gear (14) are meshed with each other.

2. A spray absorption gas treatment tower according to claim 1, characterized in that: The liquid pumping mechanism (15) comprises a liquid pump (16) fixedly mounted on the side of the liquid collecting cylinder (1), and the two ends of the liquid pump (16) are respectively fixedly connected to liquid pumping tubes (17), one end of the liquid pumping tube (17) extends to the inner cavity of the liquid collecting cylinder (1), and the other end of the liquid pumping tube (17) is fixedly connected to a second rotating joint (18), and the bottom end of the second rotating joint (18) is fixedly sleeved on the top end of the upper rotating tube (7).

3. A spray absorption gas treatment tower according to claim 1, characterized in that: The exhaust mechanism (3) comprises an exhaust pipe (19) fixedly connected to the side of the absorption tower body (2); the end of the exhaust pipe (19) is fixedly sleeved with a fixed sleeve (20); the end of the fixed sleeve (20) is fixedly connected with a water filter box (21); the inner cavity of the water filter box (21) is provided with a support frame (23); a water-absorbing desiccant (25) is placed on the top surface of the support frame (23); a sealing cover (24) is hingedly connected to the top of the water filter box (21); a drain valve (26) is fixedly installed at the bottom of the water filter box (21); and an exhaust pipe (22) is fixedly sleeved on the side of the water filter box (21).

4. A spray absorption gas treatment tower according to claim 1, characterized in that: The bottom end of the lower rotating tube (4) is fixedly sleeved with a first rotating joint (27), the bottom end of the first rotating joint (27) is fixedly connected with a one-way valve (28), and the bottom end of the one-way valve (28) is fixedly connected with an air guide pipe (29).

5. The spray absorption gas treatment tower according to claim 1, characterized in that: A switch valve (30) is fixedly mounted on the bottom surface of the liquid collecting cylinder (1), and the top end of the switch valve (30) extends to the inner cavity of the liquid collecting cylinder (1).

6. The spray absorption gas treatment tower according to claim 1, characterized in that: A liquid inlet pipe (31) is fixedly sleeved on the side of the absorption tower body (2), two air hole plates (32) are fixedly sleeved on the inner cavity of the absorption tower body (2), and the transmission column (10) passes through the middle of the air hole plate (32).

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