A reactor acidic tail gas absorption device

Abstract

The utility model discloses a kind of reaction kettle acidic tail gas absorption devices, belong to fine chemical technology field, including support plate, the upper surface of support plate is installed with support frame, the upper surface of support frame is installed with purification tank, the inner bottom wall of purification tank is installed with shunt block, the utility model passes through the shunt hole on shunt block, can evenly disperse the tail gas entering purification tank, effectively avoid local airflow velocity anomaly, simultaneously, with the cooperation of spring and piston plate, can prevent external air to enter device internal interference airflow velocity, guarantee the stability of gas-liquid contact environment, in addition, first atomizing nozzle and second atomizing nozzle spray atomized solution and ascending tail gas into tank form sufficient reverse contact, not only expand gas-liquid contact area, but also can stratified absorption to acidic gas, the tortuous passage in porous block makes airflow change flow direction multiple times, prolongs the contact time of tail gas and solution, substantially improves the neutralization efficiency of acidic gas.

Description

Technical Field

[0001] This utility model relates to the field of fine chemical technology, specifically to an acidic tail gas absorption device for a reaction vessel. Background Technology

[0002] In the production process of fine chemicals, halogenation is a very common and critical unit operation. This process often involves potentially hazardous raw materials such as hydrogen chloride, hydrogen fluoride, bromine, chlorine, thionyl chloride, phosphorus tribromide, and phosphorus pentachloride. Whether in the reaction process or the quenching process, a large amount of highly acidic and corrosive gases, such as hydrogen chloride, bromine vapor, and sulfur dioxide, are inevitably released. These released harmful gases usually need to be guided into an inorganic alkaline aqueous solution for absorption and treatment to neutralize their acidity and reduce environmental pollution.

[0003] Most existing reactor acid tail gas absorption devices suffer from uneven gas-liquid phase contact due to excessively high gas flow rates in local areas, which affects the overall absorption efficiency. Therefore, we propose a reactor acid tail gas absorption device to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention provides an acidic tail gas absorption device for a reactor, which aims to solve the problem that existing acidic tail gas absorption devices for reactors may cause uneven gas-liquid contact due to excessively high gas flow rates in local areas.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an acidic tail gas absorption device for a reaction vessel, comprising a support plate, a support frame mounted on the upper surface of the support plate, a purification box mounted on the upper surface of the support frame, a flow divider block mounted on the inner bottom wall of the purification box, multiple flow divider holes opened on the outer surface of the flow divider block, a first atomizing nozzle mounted on the inner wall of the purification box, a porous block mounted on the inner wall of the purification box, a second atomizing nozzle mounted on the inner wall of the purification box, a blocking block mounted on the inner wall of the purification box, multiple springs mounted on the inner top wall of the purification box, a piston plate mounted on the lower end of the multiple springs, and an outlet pipe connected to the outer surface of the purification box.

[0008] As a preferred technical solution of this application, a water storage tank is installed on the upper surface of the support plate, a water level monitoring module is installed on the inner wall of the water storage tank, and a warning light is installed on the upper surface of the water storage tank.

[0009] As a preferred technical solution of this application, a water purification module is installed on the upper surface of the support plate, and a water guide pipe is connected to the outer surface of the water purification module. The end of the water guide pipe away from the water purification module is connected to the outer surface of the water storage tank.

[0010] As a preferred technical solution of this application, a filter box is installed on the upper surface of the water purification module, a guide plate is installed on the inner wall of the filter box, an injection pipe is connected to the outer surface of the filter box, a controller is installed on the outer surface of the filter box, and a spray head is installed on the inner wall of the filter box.

[0011] As a preferred technical solution of this application, a first pump body is installed on the upper surface of the support plate, the output end of the first pump body is connected to a water supply pipe, the outer surface of the water supply pipe is connected to a first connecting pipe, the end of the first connecting pipe away from the water supply pipe passes through the purification box and is connected to the outer surface of the first atomizing nozzle, the outer surface of the water supply pipe is connected to a second connecting pipe, the end of the second connecting pipe away from the water supply pipe passes through the purification box and is connected to the outer surface of the second atomizing nozzle.

[0012] As a preferred technical solution of this application, a second pump body is installed on the upper surface of the support plate, the output end of the second pump body is connected to a transmission pipe, the end of the transmission pipe away from the second pump body passes through the support frame and the purification box in sequence and then connects to the outer surface of the diversion block, a valve is installed on the outer surface of the transmission pipe, the input end of the second pump body is connected to an air guide pipe, and the end of the air guide pipe away from the diversion block connects to the outer surface of the filter box.

[0013] As a preferred technical solution of this application, a third pump body is installed on the upper surface of the support plate. The output end of the third pump body is connected to a return pipe. The end of the return pipe away from the third pump body passes through the filter box and is connected to the outer surface of the spray head. The input end of the third pump body is connected to a water suction pipe. The end of the water suction pipe away from the third pump body is connected to the outer surface of the purification box.

[0014] (III) Beneficial Effects

[0015] This invention uses the diversion holes on the diversion block to evenly disperse the exhaust gas entering the purification chamber, effectively avoiding abnormal local airflow velocity. At the same time, with the cooperation of spring and piston plate, it can prevent outside air from entering the device and interfering with the airflow velocity, ensuring the stability of the gas-liquid contact environment. In addition, the first and second atomizing nozzles spray the solution into the chamber. The atomized solution forms a full counter-current contact with the rising exhaust gas, which not only expands the gas-liquid contact area, but also allows for the stratified absorption of acidic gases, ensuring more thorough absorption. The tortuous channels inside the porous block can force the airflow to change its flow direction multiple times, prolonging the contact time between the exhaust gas and the solution, allowing the exhaust gas and the absorbent liquid to react fully, and significantly improving the neutralization efficiency of acidic gases. Attached Figure Description

[0016] Figure 1 This is a front view of an acidic tail gas absorption device for a reaction vessel;

[0017] Figure 2 This is a rear view of an acidic tail gas absorption device for a reaction vessel;

[0018] Figure 3 This is a right sectional view of an acidic tail gas absorption device for a reaction vessel;

[0019] Figure 4 This is a front sectional view of an acidic tail gas absorption device for a reaction vessel;

[0020] Figure 5 This is a schematic diagram of the porous block component in an acidic tail gas absorption device for a reactor.

[0021] In the diagram: 1. Support plate; 2. Support frame; 3. Purification box; 4. Diverter block; 5. Diverter hole; 6. First atomizing nozzle; 7. Porous block; 8. Second atomizing nozzle; 9. Barrier block; 10. Piston plate; 11. Spring; 12. First pump body; 13. Water supply pipe; 14. First connecting pipe; 15. Second connecting pipe; 16. Water purification module; 17. Filter box; 18. Guide plate; 19. Injection pipe; 20. Spray head; 21. Controller; 22. Water storage tank; 23. Water level monitoring module; 24. Warning light; 25. Second pump body; 26. Transmission pipe; 27. Valve; 28. Air guide pipe; 29. ​​Third pump body; 30. Return pipe; 31. Water suction pipe; 32. Water guide pipe; 33. Air outlet pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides an acidic tail gas absorption device for a reaction vessel, including a support plate 1, a support frame 2 installed on the upper surface of the support plate 1, a purification box 3 installed on the upper surface of the support frame 2, a diversion block 4 installed on the inner bottom wall of the purification box 3, multiple diversion holes 5 opened on the outer surface of the diversion block 4, a first atomizing nozzle 6 installed on the inner wall of the purification box 3, a porous block 7 installed on the inner wall of the purification box 3, a second atomizing nozzle 8 installed on the inner wall of the purification box 3, a blocking block 9 installed on the inner wall of the purification box 3, multiple springs 11 installed on the inner top wall of the purification box 3, a piston plate 10 is installed at the lower end of the multiple springs 11, and an outlet pipe 33 is connected to the outer surface of the purification box 3.

[0024] A water storage tank 22 is installed on the upper surface of the support plate 1. A water level monitoring module 23 is installed on the inner wall of the water storage tank 22. A warning light 24 is installed on the upper surface of the water storage tank 22. The water level monitoring module 23 monitors the water level in the water storage tank 22 in real time. When the water level is too low, the warning light 24 is triggered to remind the operator to replenish the absorbent liquid in time.

[0025] A water purification module 16 is mounted on the upper surface of the support plate 1. A water guide pipe 32 is connected to the outer surface of the water purification module 16. The end of the water guide pipe 32 away from the water purification module 16 is connected to the outer surface of the water storage tank 22. A filter box 17 is mounted on the upper surface of the water purification module 16. A guide plate 18 is mounted on the inner wall of the filter box 17. An injection pipe 19 is connected to the outer surface of the filter box 17. A controller 21 is mounted on the outer surface of the filter box 17. A spray head 20 is mounted on the inner wall of the filter box 17. The acidic tail gas generated by the reactor is introduced into the filter box 17 through the gas guide pipe 28. Subsequently, the third pump body 29 is started by the controller 21 to pump the water from the water storage tank 22. The absorbent liquid is pumped to the spray head 20 through the injection pipe 19. The spray head 20 sprays the absorbent liquid downwards, making full contact with the rising exhaust gas on the surface of the guide plate 18, thus initially removing large particulate impurities and some acidic gases from the exhaust gas. A first pump body 12 is installed on the upper surface of the support plate 1. The output end of the first pump body 12 is connected to a water supply pipe 13. The outer surface of the water supply pipe 13 is connected to a first connecting pipe 14. The end of the first connecting pipe 14 away from the water supply pipe 13 passes through the purification box 3 and connects to the outer surface of the first atomizing nozzle 6. The outer surface of the water supply pipe 13 is connected to a second connecting pipe 15. The end of the second connecting pipe 15 away from the water supply pipe 13 passes through... After passing through the purification box 3, it connects to the outer surface of the second atomizing nozzle 8. The upper surface of the support plate 1 is equipped with a second pump body 25. The output end of the second pump body 25 is connected to a transmission pipe 26. The end of the transmission pipe 26 away from the second pump body 25 passes through the support frame 2 and the purification box 3 in sequence and connects to the outer surface of the diverter block 4. A valve 27 is installed on the outer surface of the transmission pipe 26. The input end of the second pump body 25 is connected to an air guide pipe 28. The end of the air guide pipe 28 away from the diverter block 4 is connected to the outer surface of the filter box 17. The upper surface of the support plate 1 is equipped with a third pump body 29. The output end of the third pump body 29 is connected to a return pipe 30. The return pipe 30 is connected to the outer surface of the filter box 17. One end of the third pump body 29 passes through the filter box 17 and connects to the outer surface of the spray head 20. The input end of the third pump body 29 is connected to the water suction pipe 31. The end of the water suction pipe 31 away from the third pump body 29 is connected to the outer surface of the purification box 3. During the filtration process, the third pump body 29 is started by the controller 21, and the solution at the bottom of the purification box 3 is drawn through the water suction pipe 31 and transported to the spray head 20 of the filter box 17 through the return pipe 30 to realize the recycling of the absorption liquid. The water purification module 16 filters the solution collected by the guide plate 18 and sprayed by the spray head 20, and then sends the filtered solution back to the water storage tank 22 through the water guide pipe 32.

[0026] Working principle: First, the pretreated exhaust gas is drawn by the second pump 25 activated by the controller 21 and transported to the diversion block 4 at the bottom of the purification box 3 via the transmission pipe 26. The exhaust gas is evenly dispersed through multiple diversion holes 5 on the surface of the diversion block 4, effectively avoiding the generation of local high-speed airflow. At the same time, the first pump 12 activated by the controller 21 transports the solution in the water storage tank 22 to the first connecting pipe 14 and the second connecting pipe 15 via the water supply pipe 13, and then to the first atomizing nozzle 6 and the second atomizing nozzle 8. The nozzles atomize the solution into fine droplets, which fully contact the rising exhaust gas to neutralize the acidic gas. The exhaust gas continues to rise and passes through the porous block 7. The tortuous channel inside forces the airflow to change direction multiple times, prolonging the gas-liquid contact time and further improving the absorption efficiency. Afterward, the second atomizing nozzle 8 sprays the exhaust gas a second time to ensure that the residual acidic gas is completely absorbed. When the gas pressure in the purification box 3 gradually increases, the gas will push up the piston plate 10 and force the spring 11 to deform, and the purified gas will be discharged through the gas outlet pipe 33.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for absorbing acidic tail gas from a reaction vessel, comprising a support plate (1), characterized in that: A support frame (2) is installed on the upper surface of the support plate (1), and a purification box (3) is installed on the upper surface of the support frame (2). A diversion block (4) is installed on the inner bottom wall of the purification box (3). Multiple diversion holes (5) are opened on the outer surface of the diversion block (4). A first atomizing nozzle (6) is installed on the inner wall of the purification box (3). A perforated block (7) is installed on the inner wall of the purification box (3). A second atomizing nozzle (8) is installed on the inner wall of the purification box (3). A blocking block (9) is installed on the inner wall of the purification box (3). Multiple springs (11) are installed on the inner top wall of the purification box (3). A piston plate (10) is installed at the lower end of the multiple springs (11). An air outlet pipe (33) is connected to the outer surface of the purification box (3).

2. The acidic tail gas absorption device for a reaction vessel according to claim 1, characterized in that: A water storage tank (22) is installed on the upper surface of the support plate (1), a water level monitoring module (23) is installed on the inner wall of the water storage tank (22), and a warning light (24) is installed on the upper surface of the water storage tank (22).

3. The acidic tail gas absorption device for a reaction vessel according to claim 1, characterized in that: A water purification module (16) is installed on the upper surface of the support plate (1). A water guide pipe (32) is connected to the outer surface of the water purification module (16). The end of the water guide pipe (32) away from the water purification module (16) is connected to the outer surface of the water storage tank (22).

4. The acidic tail gas absorption device for a reaction vessel according to claim 3, characterized in that: The water purification module (16) has a filter box (17) installed on its upper surface. The filter box (17) has a guide plate (18) installed on its inner wall. The filter box (17) has an injection pipe (19) connected to its outer surface. The filter box (17) has a controller (21) installed on its outer surface. The filter box (17) has a spray head (20) installed on its inner wall.

5. The acidic tail gas absorption device for a reaction vessel according to claim 1, characterized in that: The upper surface of the support plate (1) is equipped with a first pump body (12), the output end of the first pump body (12) is connected to a water supply pipe (13), the outer surface of the water supply pipe (13) is connected to a first connecting pipe (14), the end of the first connecting pipe (14) away from the water supply pipe (13) passes through the purification box (3) and is connected to the outer surface of the first atomizing nozzle (6), the outer surface of the water supply pipe (13) is connected to a second connecting pipe (15), the end of the second connecting pipe (15) away from the water supply pipe (13) passes through the purification box (3) and is connected to the outer surface of the second atomizing nozzle (8).

6. The acidic tail gas absorption device for a reaction vessel according to claim 1, characterized in that: The upper surface of the support plate (1) is equipped with a second pump body (25). The output end of the second pump body (25) is connected to a transmission pipe (26). The end of the transmission pipe (26) away from the second pump body (25) passes through the support frame (2) and the purification box (3) in sequence and then connects to the outer surface of the diversion block (4). A valve (27) is installed on the outer surface of the transmission pipe (26). The input end of the second pump body (25) is connected to an air guide pipe (28). The end of the air guide pipe (28) away from the diversion block (4) is connected to the outer surface of the filter box (17).

7. The acidic tail gas absorption device for a reaction vessel according to claim 1, characterized in that: The upper surface of the support plate (1) is equipped with a third pump body (29). The output end of the third pump body (29) is connected to a return pipe (30). The end of the return pipe (30) away from the third pump body (29) passes through the filter box (17) and is connected to the outer surface of the spray head (20). The input end of the third pump body (29) is connected to a water pumping pipe (31). The end of the water pumping pipe (31) away from the third pump body (29) is connected to the outer surface of the purification box (3).

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