Desulfurization reaction tower

Abstract

The utility model discloses a desulfurization reaction tower. The desulfurization reaction tower comprises a reaction tower, a gas inlet is formed in the top end of the reaction tower; a reaction tank device is fixedly arranged at the bottom end in the reaction tower; the bottom end of the reaction tank device is connected with the rotary motion driving device; the rotary motion driving device is fixedly connected with the bottom end of the reaction tower; a breather pipe device is fixedly arranged in the reaction tower; the top end of the ventilation pipe device is communicated with the air inlet, and the bottom end of the ventilation pipe device extends into the reaction tank device; and a liquid inlet pipe and a gas outlet are respectively arranged on the side wall of the reaction tower. According to the desulfurization reaction tower provided by the utility model, the reaction tank can be rotated through the motor at the bottom, the reaction speed and efficiency of tail gas and a solution can be accelerated, and meanwhile, the roller structures are mounted on the circumference of the outer side of the reaction tank and used for rolling of rollers, so that the functional loss of the motor can be reduced; the friction between the reaction tank and the reaction tank outer fixing shell is reduced, and the practicability and efficiency of equipment use are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a desulfurization reaction tower. Background Art

[0002] In the coal gas purification production process in my country, most coking plants use the HPF desulfurization process, followed by a saturator ammonium sulfate process.

[0003] Since the desulfurization and ammonium sulfate processes are both arranged after the blower, there is an unreasonable temperature gradient of the coal gas, which increases energy consumption.

[0004] The above problems can be solved by using ammonia as the alkali source in oxidation gas desulfurization under negative pressure conditions and a spray saturator after the blower. However, the regenerated tail gas after negative pressure desulfurization contains ammonia. The regenerated tail gas is sent back to the gas system to recover ammonia to avoid direct discharge and pollution. However, negative pressure desulfurization inevitably causes oxygen to be contained in the regenerated tail gas, and the oxygen content in the gas system should not exceed 2%, otherwise it is easy to cause an explosion.

[0005] In the invention with the publication number CN110813042B, a deoxygenation reaction tower and working method for desulfurized tail gas are disclosed, including a base, a lower head, an outer cylinder, an outer cone section, an inner cylinder, a tube sheet, a reaction cylinder, an inner cone section, a flange, a circulating liquid outlet pipe, a separation cylinder, a tail gas outlet pipe and a Na2SO3 solution nozzle. Its beneficial effect is: the regenerated tail gas is divided into several parts by using a reaction cylinder, and a sodium sulfite solution is sprayed into each reaction cylinder by a nozzle to collide with the tail gas, and the deoxygenation reaction treatment is carried out separately, and a foam zone with full contact and mixing is formed in each reaction cylinder to accelerate the reaction of sodium sulfite and oxygen, which can effectively remove oxygen in the negative pressure desulfurized tail gas, has high deoxygenation efficiency, simple structure and convenient operation. However, in this structure, the reaction speed of tail gas and solution is not accelerated, and the working efficiency of the equipment cannot be accelerated, and the working efficiency of the equipment is low. Utility Model Content

[0006] In view of this, the utility model proposes a desulfurization reaction tower.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A desulfurization reaction tower comprises a reaction tower; an air inlet is provided at the top of the reaction tower; a reaction pool device is fixedly provided at the bottom end of the interior of the reaction tower; the bottom end of the reaction pool device is connected to a rotary motion driving device; the rotary motion driving device is fixedly connected to the bottom end of the reaction tower; a ventilation pipe device is fixedly provided inside the reaction tower; the top end of the ventilation pipe device is connected to the air inlet, and the bottom end of the ventilation pipe device extends into the interior of the reaction pool device; a liquid inlet pipe and an air outlet are respectively provided on the side walls of the reaction tower.

[0009] Furthermore, the reaction tower comprises a reaction tower lower chamber, a reaction tower upper chamber, a curved surface block and a gas transmission pipe;

[0010] The lower chamber of the reaction tower, the upper chamber of the reaction tower, and the curved surface block are fixedly connected in sequence from bottom to top;

[0011] The upper end of the curved block is fixedly connected to the lower end of the gas delivery pipe.

[0012] Furthermore, a layered plate is fixedly provided at the connection between the inner surfaces of the lower bin of the reaction tower and the upper bin of the reaction tower.

[0013] Furthermore, a fixing plate is fixedly provided on the outer circumferential surface of the gas delivery pipe;

[0014] The central hole of the fixing plate is an air inlet;

[0015] The fixing plate is provided with a fixing hole running through it longitudinally.

[0016] Further, the reaction pool device comprises a reaction pool outer fixed shell and a reaction pool;

[0017] The inner end of the reaction pool outer fixed shell and the outer end of the reaction pool are sleeved and connected with each other.

[0018] Further, the rotary motion driving device includes a motor assembly and a rotating assembly;

[0019] The bottom end of the reaction tank is connected to the motor assembly; the motor assembly is fixedly connected to the bottom end of the lower bin of the reaction tower;

[0020] A rotating assembly is arranged on the outer circumferential surface of the reaction pool; the reaction pool is rotatably connected with the outer fixed shell of the reaction pool through the rotating assembly.

[0021] Further, the motor assembly includes a motor and a rotating shaft;

[0022] The motor is fixedly connected to the bottom end of the lower bin of the reaction tower;

[0023] The output end of the motor is fixedly connected to the rotating shaft; the rotating shaft passes through the lower bin of the reaction tower, the fixed shell outside the reaction pool and is fixedly connected to the bottom end of the reaction pool.

[0024] Further, the rotating assembly includes a roller side plate, a roller and a roller groove;

[0025] A roller groove is provided on the inner circumferential surface of the fixed shell outside the reaction pool;

[0026] A roller side plate is fixedly provided on the outer circumferential surface of the reaction tank; the roller side plate is located in the roller groove;

[0027] The roller side plate is rotatably connected to the roller; the roller is located in the roller groove, and the roller and the inner end surface of the roller groove are in contact with each other.

[0028] Further, the vent pipe device includes an outer vent pipe, an air pump, an inner vent pipe and an air outlet nozzle;

[0029] The bottom end of the gas delivery pipe is fixedly connected to the top ends of the plurality of ventilation outer tubes; the top ends of the ventilation outer tubes are connected to the air inlet, and the bottom ends of the ventilation outer tubes extend into the interior of the reaction pool device;

[0030] Each of the outer ventilation tubes is provided with an internal ventilation tube;

[0031] An air pump is fixedly installed on the internal ventilation pipe; the outer end of the air pump is fixedly connected to the inner end of the ventilation outer pipe;

[0032] The air outlet nozzle is fixedly arranged at the bottom end of the internal ventilation pipe.

[0033] Furthermore, a liquid inlet pipe is provided on the side wall of the lower chamber of the reaction tower; the liquid outlet end of the liquid inlet pipe is connected to the interior of the reaction tank device;

[0034] An air outlet is arranged on the side wall of the upper bin of the reaction tower; the air outlet is communicated with the interior of the reaction tower.

[0035] Compared with the existing technology, the beneficial effects of the utility model are: the desulfurization reaction tower provided by the present invention is provided with a reaction chamber rotating structure, which is composed of a reaction tank, a motor and a fixed shell outside the reaction tank and other devices. After the exhaust gas is input into the reaction tank, the exhaust gas and the solution inside the reaction tank will react, and the reaction tank can be rotated by the motor at the bottom, which can accelerate the reaction speed and efficiency of the exhaust gas and the solution. At the same time, a roller structure is installed on the outer circumferential surface of the reaction tank, and a roller groove is opened on the surface of the fixed shell outside the reaction tank for roller rolling, which can reduce the functional loss of the motor and reduce the friction between the reaction tank and the fixed shell outside the reaction tank, thereby improving the practicability and efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A three-dimensional diagram of a desulfurization reaction tower provided in an embodiment of the utility model;

[0037] Figure 2 A schematic cross-sectional view of a desulfurization reaction tower provided in an embodiment of the utility model;

[0038] Figure 3 A cross-sectional schematic diagram of a ventilating pipe device provided in an embodiment of the utility model;

[0039] Figure 4A cross-sectional schematic diagram of a reaction pool device and a rotary motion drive device provided in an embodiment of the utility model.

[0040] In the figure: 1. lower chamber of reaction tower; 2. support column; 3. chassis of support column; 4. upper chamber of reaction tower; 5. air outlet; 6. curved block; 7. air inlet; 8. fixing hole; 9. fixing plate; 10. air pipe; 11. liquid inlet; 12. liquid inlet pipe; 13. ventilation outer pipe; 14. layering plate; 15. reaction pool; 16. motor; 17. outer fixed shell of reaction pool; 18. air pump; 19. internal ventilation pipe; 20. air outlet nozzle; 21. roller side plate; 22. roller; 23. roller groove; 24. rotating shaft. DETAILED DESCRIPTION

[0041] 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.

[0042] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Example:

[0045] like Figure 1-4 As shown, a desulfurization reaction tower includes a reaction tower.

[0046] The reaction tower comprises a lower chamber 1, an upper chamber 4, a curved block 6 and a gas pipe 10. The lower chamber 1, the upper chamber 4 and the curved block 6 are fixedly connected in sequence from bottom to top. The curved block 6 is fixedly connected at the upper surface of the upper chamber 4, and the gas pipe 10 is welded at the edge of the upper surface of the curved block 6 to avoid leakage when the tail gas is input.

[0047] A layered plate 14 is welded at the inner surface connection between the lower chamber 1 of the reaction tower and the upper chamber 4 of the reaction tower. The reaction tower of the overall equipment is designed as a two-part structure of an upper chamber and a lower chamber, and the upper chamber and the lower chamber are connected by the layered plate 14. The equipment is designed as two parts, which can improve the firmness of the overall equipment. A fixing plate 9 is fixedly provided on the outer circumferential surface of the gas transmission pipe 10. The central hole of the fixing plate 9 is the gas inlet 7. A fixing hole 8 is longitudinally opened on the fixing plate 9.

[0048] A fixing plate 9 is welded at the edge of the outer circumferential surface of the upper surface of the gas supply pipe 10, and a fixing hole 8 is opened at the edge of the upper surface of the fixing plate 9, and the fixing hole 8 can be a screw hole; the central hole of the fixing plate 9 is the air inlet 7, and the fixing plate 9 is welded at the edge of the outer circumferential surface of the upper surface of the gas supply, and a screw hole is opened on the fixing plate 9 for connecting with the external exhaust ventilation pipe, thereby improving the stability of the exhaust gas input and avoiding the leakage of the exhaust gas during the input.

[0049] A reaction pool device is fixedly arranged at the inner bottom of the reaction tower. The reaction pool device comprises a reaction pool outer fixed shell 17 and a reaction pool 15. The inner end of the reaction pool outer fixed shell 17 and the outer end of the reaction pool 15 are mutually sleeved.

[0050] The rotary motion driving device includes a motor 16 , a rotating shaft 24 , a roller side plate 21 , a roller 22 and a roller groove 23 .

[0051] The motor 16 is fixedly connected to the bottom of the lower chamber 1 of the reaction tower. The output end of the motor 16 is fixedly connected to the rotating shaft 24; the rotating shaft 24 passes through the lower chamber 1 of the reaction tower, the fixed shell 17 outside the reaction pool, and is fixedly connected to the bottom of the reaction pool 15. After the tail gas is input into the reaction pool 15, the tail gas reacts with the solution inside the reaction pool 15, and the reaction pool 15 can be rotated by the motor 16 at the bottom, which can speed up the reaction speed and efficiency of the tail gas and the solution.

[0052] A roller groove 23 is provided in the middle of the inner circumferential surface of the reaction pool outer fixed shell 17. A roller side plate 21 is fixedly provided on the outer circumferential surface of the reaction pool 15. The roller side plate 21 is located in the roller groove 23. The roller side plate 21 is rotatably connected to the roller 22. The roller 22 is located in the roller groove 23, and the inner end surfaces of the roller 22 and the roller groove 23 are in contact with each other.

[0053] A vent pipe device is fixed inside the reaction tower; the vent pipe device includes an outer vent pipe 13, an air pump 18, an inner vent pipe 19 and an air outlet nozzle 20. The top of the vent pipe device is connected to the air inlet 7, and the bottom of the vent pipe device extends into the interior of the reaction pool 15; the side walls of the reaction tower are respectively provided with a liquid inlet pipe 12 and an air outlet 5. A roller 22 structure is installed on the outer circumferential surface of the reaction pool 15, and a roller groove 23 is opened on the outer circumferential surface of the reaction pool 15 for the roller 22 to roll, which can reduce the functional loss of the motor 16 and reduce the friction between the reaction pool 15 and the outer fixed shell 17 of the reaction pool, thereby improving the practicality and efficiency of the equipment.

[0054] The bottom end of the gas delivery pipe 10 is fixedly connected to the top ends of a plurality of ventilation outer pipes 13; the top ends of the ventilation outer pipes 13 are connected to the air inlet 7, and the bottom ends of the ventilation outer pipes 13 extend into the interior of the reaction pool device;

[0055] Each ventilation outer tube 13 is provided with an internal ventilation pipe 19; an air pump 18 is fixedly installed on the internal ventilation pipe 19; the outer end of the air pump 18 is fixedly connected to the inner end of the ventilation outer tube 13; the bottom end of the internal ventilation pipe 19 extends out of the ventilation outer tube 13; and a gas outlet nozzle 20 is fixedly provided at the bottom end of the internal ventilation pipe 19. The air pump 18 can accelerate the input processing of the incoming tail gas, thereby improving the working efficiency of the equipment. The gas outlet nozzle 20 is input into the reaction tank 15 for reaction, which can prevent the solution inside the reaction tank 15 from entering the internal ventilation pipe 19.

[0056] A liquid inlet pipe 12 is provided at the upper left end of the side wall of the lower chamber 1 of the reaction tower; a liquid inlet port 11 is welded on the upper surface of the liquid inlet pipe 12; the liquid inlet port 11 is installed on the upper surface of the liquid inlet pipe 12, and is designed as a large upper and small lower structure to prevent leakage of the solution when it is input into the equipment.

[0057] The liquid outlet end of the liquid inlet pipe 12 extends into the interior of the reaction tank device, and a driving pump is installed on the liquid inlet pipe 12. An air outlet 5 is provided at the upper right end of the side wall of the upper warehouse 4 of the reaction tower; the air outlet 5 is connected to the interior of the reaction tower. The air outlet 5 is designed as an upper outlet structure to discharge the tail gas after the reaction out of the equipment.

[0058] A support column 2 is fixedly connected to the lower surface of the lower warehouse 1 of the reaction tower, and a support column chassis 3 is welded to the bottom surface of the support column 2. A support column 2 is fixedly connected to the lower surface of the reaction tower, and a support column chassis 3 is welded to the bottom surface of the support column 2, which can prevent the entire equipment from tipping over and improve the stability of the equipment.

[0059] The working process is:

[0060] Step 1: After the tail gas is input into the air inlet 7 of the reaction tower, the tail gas delivery pipe 10 is connected with screws, and the tail gas is input into the upper warehouse 4 of the reaction tower through the ventilation outer pipe 13. The air pump 18 transports the tail gas into the internal ventilation pipe 19, and the exhaust gas is output from the ventilation device through the air outlet nozzle 20 and input into the reaction tank 15;

[0061] Step 2: exhaust gas is input into the reaction pool 15, the bottom motor 16 is started, the rotating shaft 24 is driven to rotate, and the exhaust gas input from the gas outlet nozzle 20 enters the reaction pool 15 for reaction. At the same time, a roller 22 is installed on the outer circumferential surface of the reaction pool 15. After the roller 22 rotates, it reduces the friction between the reaction pool 15 and the fixed shell 17 outside the reaction pool;

[0062] Step 3: After the tail gas enters the reaction pool 15 for reaction, it enters the interior of the reaction tower upper warehouse 4 and finally exits the reaction tower upper warehouse 4 through the gas outlet 5 .

[0063] The working principle of a desulfurization reaction tower embodiment of the present invention is as follows: a rotary drive device is arranged inside the device, and the rotary drive device is composed of a motor 16, a rotating shaft 24, a roller side plate 21, a roller 22 and a roller groove 23 device. After the tail gas is input into the reaction tank 15, the tail gas reacts with the solution inside the reaction tank 15, and the reaction tank 15 can be rotated by the motor 16 at the bottom, which can accelerate the reaction speed and efficiency of the tail gas and the solution. At the same time, a roller 22 structure is installed on the outer circumferential surface of the reaction tank 15, and a roller groove 23 is opened on the surface of the fixed shell 17 outside the reaction tank for the roller 22 to roll, which can reduce the functional loss of the motor 16 and reduce the friction between the reaction tank 15 and the fixed shell 17 outside the reaction tank, thereby improving the practicability and efficiency of the equipment.

[0064] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A desulfurization reaction tower, comprising a reaction tower; a gas inlet (7) is provided at the top of the reaction tower; characterized in that: A reaction pool (15) device is fixedly provided at the bottom end of the reaction tower; the bottom end of the reaction pool (15) device is connected to a rotary motion driving device; the rotary motion driving device is fixedly connected to the bottom end of the reaction tower; a ventilation pipe device is fixedly provided inside the reaction tower; the top end of the ventilation pipe device is connected to the air inlet (7), and the bottom end of the ventilation pipe device extends into the interior of the reaction pool (15) device; and a liquid inlet pipe (12) and an air outlet (5) are respectively provided on the side walls of the reaction tower.

2. A desulfurization reaction tower according to claim 1, characterized in that: The reaction tower comprises a reaction tower lower bin (1), a reaction tower upper bin (4), a curved surface block (6) and a gas transmission pipe (10); The reaction tower lower bin (1), the reaction tower upper bin (4), and the curved surface block (6) are fixedly connected in sequence from bottom to top; The upper end of the curved block (6) and the lower end of the gas delivery pipe (10) are fixedly connected.

3. A desulfurization reaction tower according to claim 2, characterized in that: A layered plate (14) is fixedly provided at the connection between the inner surfaces of the lower bin (1) of the reaction tower and the upper bin (4) of the reaction tower.

4. A desulfurization reaction tower according to claim 2, characterized in that: A fixing plate (9) is fixedly provided on the outer circumferential surface of the gas delivery pipe (10); The central hole of the fixing plate (9) is an air inlet (7); The fixing plate (9) is provided with a fixing hole (8) extending longitudinally therethrough.

5. A desulfurization reaction tower according to claim 2, characterized in that: The reaction pool (15) device comprises a reaction pool outer fixed shell (17) and a reaction pool (15); The inner end of the reaction pool outer fixed shell (17) and the outer end of the reaction pool (15) are sleeved and connected to each other.

6. A desulfurization reaction tower according to claim 5, characterized in that: The rotary motion driving device comprises a motor (16) component and a rotating component; The bottom end of the reaction pool (15) is connected to the motor (16) assembly; the motor (16) assembly is fixedly connected to the bottom end of the lower bin (1) of the reaction tower; A rotating assembly is provided on the outer circumferential surface of the reaction pool (15); the reaction pool (15) is rotatably connected to the reaction pool outer fixed shell (17) via the rotating assembly.

7. A desulfurization reaction tower according to claim 6, characterized in that: The motor (16) assembly comprises a motor (16) and a rotating shaft (24); The motor (16) is fixedly connected to the bottom end of the lower bin (1) of the reaction tower; The output end of the motor (16) is fixedly connected to the rotating shaft (24); the rotating shaft (24) passes through the lower chamber (1) of the reaction tower, the fixed shell (17) outside the reaction pool and is fixedly connected to the bottom end of the reaction pool (15).

8. A desulfurization reaction tower according to claim 6, characterized in that: The rotating assembly comprises a roller side plate (21), a roller (22) and a roller groove (23); A roller groove (23) is provided on the inner circumferential surface of the reaction tank outer fixed shell (17); A roller side plate (21) is fixedly provided on the outer circumferential surface of the reaction pool (15); the roller side plate (21) is located in the roller groove (23); The roller side plate (21) and the roller (22) are rotatably connected; the roller (22) is located in the roller groove (23), and the inner end surfaces of the roller (22) and the roller groove (23) are in contact with each other.

9. A desulfurization reaction tower according to claim 2, characterized in that: The ventilation pipe device comprises a ventilation outer pipe (13), an air pump (18), an internal ventilation pipe (19) and an air outlet nozzle (20); The bottom end of the gas delivery pipe (10) is fixedly connected to the top ends of a plurality of the ventilation outer pipes (13); the top ends of the ventilation outer pipes (13) are connected to the gas inlet (7), and the bottom ends of the ventilation outer pipes (13) extend into the interior of the reaction pool (15); Each of the outer ventilation tubes (13) is provided with an internal ventilation tube (19); An air pump (18) is fixedly mounted on the internal ventilation pipe (19); the outer end of the air pump (18) is fixedly connected to the inner end of the ventilation outer pipe (13); The air outlet nozzle (20) is fixedly provided at the bottom end of the internal ventilation pipe (19).

10. A desulfurization reaction tower according to claim 2, characterized in that: A liquid inlet pipe (12) is provided on the side wall of the lower chamber (1) of the reaction tower; the liquid outlet end of the liquid inlet pipe (12) is connected to the interior of the reaction pool (15); An air outlet (5) is provided on the side wall of the upper bin (4) of the reaction tower; the air outlet (5) is communicated with the interior of the reaction tower.

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