A teflon acid-base exhaust gas treatment tank

Abstract

This application provides a Teflon-lined acid and alkali waste gas treatment tank, relating to the technical field of waste gas treatment tanks. It includes a Teflon-lined waste gas treatment tank body, with two acid and alkali reagent storage tanks fixedly installed at the bottom of the tank body. A sedimentation tank is fixedly installed at the bottom of each acid and alkali reagent storage tank, and a reagent preparation tank is fixedly installed on top of the sedimentation tank. Through the provided acid and alkali waste gas treatment components, the waste gas to be treated enters the installation box through an inlet pipe. Impurities in the gas are removed through a filter element. The gas enters the interior of the Teflon-lined waste gas treatment tank through a gas nozzle and diffuses out. At this time, a first pump can be controlled to transfer the reagent inside the reagent preparation tank to a rotary joint through a transmission rigid pipe. After the spray pipe rotates, it can rotate and spray the treatment liquid, allowing for a larger contact area between the sprayed liquid and the gas, resulting in better treatment effect.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment tanks, and in particular to a Teflon acid and alkali waste gas treatment tank. Background Technology

[0002] Industrial processes such as chemical production, electronics manufacturing, and electroplating generate large amounts of waste gas containing acidic and alkaline components such as sulfuric acid, hydrochloric acid, nitric acid, and sodium hydroxide. These waste gases are highly corrosive; if discharged directly without effective treatment, they will not only cause serious air pollution but also corrode surrounding buildings and equipment.

[0003] Existing waste gas treatment tanks require spraying treatment liquid during waste gas filtration. The contact area between the treatment liquid and the waste gas is small, resulting in incomplete reaction. The treatment liquid is often reused after simple filtration, which can easily cause pH imbalance and reduce its effectiveness in treating waste gas. Therefore, we propose a Teflon acid and alkali waste gas treatment tank. Utility Model Content

[0004] In view of this, this application provides a Teflon acid and alkali waste gas treatment tank, which solves the above technical problems to a certain extent.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A Teflon-lined acid and alkali waste gas treatment tank includes a Teflon-lined waste gas treatment tank body, two acid and alkali reagent storage tanks are fixedly installed at the bottom of the Teflon-lined waste gas treatment tank body, a sedimentation tank is fixedly installed at the bottom of the acid and alkali reagent storage tanks, and an acid and alkali waste gas treatment component is provided on the Teflon-lined waste gas treatment tank body, the acid and alkali reagent storage tanks and the sedimentation tank.

[0007] The acid and alkali waste gas treatment assembly includes a reagent preparation tank, a motor, a drive shaft, a stirring rod, a first pump, and a transmission rigid pipe. The reagent preparation tank is fixedly installed on the top of the sedimentation tank. The motor is fixedly installed on the rear side of the reagent preparation tank. The drive shaft is fixedly installed on the output end of the motor. The stirring rod is fixedly installed around the outside of the drive shaft. The first pump is fixedly installed on the front side of the reagent preparation tank. The suction end of the first pump is connected to the reagent preparation tank. One end of the transmission rigid pipe is fixedly installed on the output end of the first pump.

[0008] Preferably, an installation box is fixedly installed on the outside of the Teflon-lined waste gas treatment tank, a filter element is bolted on the inside of the installation box, an air inlet pipe is fixedly installed on one side of the installation box, one end of a conveying pipe is fixedly installed on one side of the installation box, and a gas nozzle is fixedly installed on the other end of the conveying pipe. The gas nozzle is located inside the Teflon-lined waste gas treatment tank, and a treatment liquid circulation and recovery assembly is provided on the acid and alkali reagent storage tank, the sedimentation tank, and the Teflon-lined waste gas treatment tank.

[0009] Preferably, the acid and alkali waste gas treatment assembly further includes a rotary joint, a bevel gear, a rotating shaft, a spray pipe, and a cleaning scraper. The rotary joint is rotatably mounted on the outside of the other end of the transmission rigid pipe. The bevel gear is fixedly mounted on the outside of the rotary joint and the drive shaft, with adjacent bevel gears meshing. The rotating shaft is fixedly mounted on the top of the rotary joint. The spray pipe is fixedly mounted on the rotating shaft. The cleaning scraper is fixedly mounted on the outside of the rotary joint, with the bottom of the cleaning scraper in contact with the bottom inner wall of the Teflon-lined waste gas treatment tank.

[0010] Preferably, the treatment liquid circulation and recovery assembly includes a circulation pump, a connecting pipe, a second pump, a reagent transfer pipe, a wire mesh demister, and an exhaust pipe. The circulation pump is fixedly installed on the top of the sedimentation tank, and its suction end is connected to the sedimentation tank. One end of the connecting pipe is fixedly installed on the output end of the circulation pump, and the other end is fixedly installed on the top of the reagent preparation tank. The second pump is fixedly installed on the rear side of the acid and alkali reagent storage tank. One end of the reagent transfer pipe is fixedly installed on the output end of the second pump, and the other end is fixedly installed on one side of the reagent preparation tank. The wire mesh demister is fixedly installed on the inner side of the Teflon-lined waste gas treatment tank, and the exhaust pipe is fixedly installed on the top of the Teflon-lined waste gas treatment tank.

[0011] Preferably, the treatment liquid recycling assembly further includes a liquid discharge pipe, a neutralizing agent storage tank, a third pump, and a neutralizing agent transmission pipe. One end of the liquid discharge pipe is fixedly installed inside the Teflon-lined waste gas treatment tank, and the other end of the liquid discharge pipe is fixedly installed at the top of the sedimentation tank. The neutralizing agent storage tank is fixedly installed on the left side of the sedimentation tank, and the third pump is fixedly installed on the left side of the neutralizing agent storage tank. The suction end of the third pump is connected to the neutralizing agent storage tank. One end of the neutralizing agent transmission pipe is fixedly installed at the output end of the third pump, and the other end of the neutralizing agent transmission pipe is fixedly installed on one side of the sedimentation tank.

[0012] Preferably, a diversion chamber is provided on the inner side of the rotating shaft and the spray pipe, and multiple atomizing nozzles are fixedly installed above the spray pipe, with the atomizing nozzles connected to the diversion chamber.

[0013] Preferably, the top of the mounting box is provided with a sliding groove, the filter element is fitted into the sliding groove, and both the top of the mounting box and the filter element are provided with threaded holes.

[0014] Preferably, a viewing window is provided on the rear side of the sedimentation tank, and an openable door is provided on the right side of the sedimentation tank.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) The present invention provides a Teflon acid and alkali waste gas treatment tank. Through the set acid and alkali waste gas treatment components, the waste gas to be treated enters the installation box through the air inlet pipe. Impurities in the gas can be removed through the filter element. The gas enters the interior of the Teflon-lined waste gas treatment tank through the gas nozzle and can diffuse and spray out. At this time, the first pump can be controlled to transfer the reagent inside the reagent preparation tank to the rotary joint through the transmission hard pipe. After the spray pipe rotates, the treatment liquid can be rotated and sprayed, which can make the contact area between the sprayed liquid and the gas larger and the treatment effect better.

[0017] (2) The present invention provides a Teflon acid and alkali waste gas treatment tank. Through the set treatment liquid circulation and recovery component, the used agent is driven into the interior of the liquid discharge pipe by the rotating cleaning scraper, and flows into the sedimentation tank through the liquid discharge pipe. The third pump is controlled to transfer the neutralizing agent in the neutralizing agent storage tank to the sedimentation tank through the neutralizing agent transfer pipe, so that the neutralizing agent can neutralize and filter the used agent. An openable door is set on one side of the sedimentation tank to clean the sediment inside the sedimentation tank. After the liquid treatment is completed, the circulation pump is controlled to transfer the liquid to the agent preparation tank through the connecting pipe. The rotating drive shaft can drive the stirring rod to mix and prepare the liquid, so that the device has a better treatment effect on acid and alkali waste gas.

[0018] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a Teflon acid and alkali waste gas treatment tank proposed in this utility model.

[0020] Figure 2 A schematic diagram of a three-dimensional view of a Teflon acid and alkali waste gas treatment tank according to an embodiment of this application is shown.

[0021] Figure 3 A schematic diagram showing a three-dimensional view of a portion of the structure of the rotating shaft and spray pipe provided according to an embodiment of this application;

[0022] Figure 4 This is a schematic diagram showing a three-dimensional view of the exploded portion structure of a Teflon acid and alkali waste gas treatment tank according to an embodiment of this application.

[0023] Figure label:

[0024] 1. Acid and alkali waste gas treatment components; 2. Treatment liquid circulation and recovery components; 3. Teflon-lined waste gas treatment tank; 4. Installation box; 5. Air inlet pipe; 6. Filter element; 7. Conveying pipe; 8. Gas nozzle; 9. Acid and alkali reagent storage tank; 10. Sedimentation tank;

[0025] 11. Pharmaceutical preparation tank; 12. Motor; 13. Drive shaft; 14. Stirring rod; 15. First pump; 16. Transmission rigid pipe; 17. Rotary joint; 18. Bevel gear; 19. Rotating shaft; 20. Spray pipe; 21. Cleaning scraper;

[0026] 22. Circulating pump; 23. Connecting pipe; 24. Second pump; 25. Chemical transfer pipe; 26. Wire mesh demister; 27. Gas outlet pipe; 28. Liquid discharge pipe; 29. ​​Neutralizing agent storage tank; 30. Third pump; 31. Neutralizing agent transfer pipe. Detailed Implementation

[0027] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings;

[0028] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] refer to Figure 1-4 A Teflon-lined acid and alkali waste gas treatment tank includes a Teflon-lined waste gas treatment tank body 3, two acid and alkali reagent storage tanks 9 are fixedly installed at the bottom of the Teflon-lined waste gas treatment tank body 3, a sedimentation tank 10 is fixedly installed at the bottom of the acid and alkali reagent storage tanks 9, and an acid and alkali waste gas treatment component 1 is provided on the Teflon-lined waste gas treatment tank body 3, the acid and alkali reagent storage tanks 9 and the sedimentation tank 10;

[0030] The acid and alkali waste gas treatment component 1 includes a reagent preparation tank 11, a motor 12, a drive shaft 13, a stirring rod 14, a first pump 15, and a transmission rigid pipe 16. The reagent preparation tank 11 is fixedly installed on the top of the sedimentation tank 10. The motor 12 is fixedly installed on the rear side of the reagent preparation tank 11. The drive shaft 13 is fixedly installed on the output end of the motor 12. The stirring rod 14 is fixedly installed around the outside of the drive shaft 13. The first pump 15 is fixedly installed on the front side of the reagent preparation tank 11. The suction end of the first pump 15 is connected to the reagent preparation tank 11. One end of the transmission rigid pipe 16 is fixedly installed on the output end of the first pump 15.

[0031] In this embodiment, an installation box 4 is fixedly installed on the outside of the Teflon-lined waste gas treatment tank 3. A filter element 6 is bolted on the inside of the installation box 4. An air inlet pipe 5 is fixedly installed on one side of the installation box 4. One end of a conveying pipe 7 is fixedly installed on one side of the installation box 4. A gas nozzle 8 is fixedly installed on the other end of the conveying pipe 7. The gas nozzle 8 is located inside the Teflon-lined waste gas treatment tank 3. A treatment liquid circulation and recovery assembly 2 is installed on the acid and alkali reagent storage tank 9, the sedimentation tank 10, and the Teflon-lined waste gas treatment tank 3.

[0032] In this embodiment, the acid and alkali waste gas treatment component 1 further includes a rotary joint 17, a bevel gear 18, a rotating shaft 19, a spray pipe 20, and a cleaning scraper 21. The rotary joint 17 is rotatably installed on the outside of the other end of the transmission rigid pipe 16. The bevel gear 18 is fixedly installed on the outside of the rotary joint 17 and the drive shaft 13, with two adjacent bevel gears 18 meshing. The rotating shaft 19 is fixedly installed on the top of the rotary joint 17. The spray pipe 20 is fixedly installed on the rotating shaft 19. The cleaning scraper 21 is fixedly installed on the outside of the rotary joint 17, and the bottom of the cleaning scraper 21 is in contact with the bottom inner wall of the Teflon-lined waste gas treatment tank 3.

[0033] In this embodiment, the treatment liquid circulation and recovery assembly 2 includes a circulation pump 22, a connecting pipe 23, a second pump 24, a reagent transmission pipe 25, a wire mesh demister 26, and an exhaust pipe 27. The circulation pump 22 is fixedly installed on the top of the sedimentation tank 10, and the suction end of the circulation pump 22 is connected to the sedimentation tank 10. One end of the connecting pipe 23 is fixedly installed on the output end of the circulation pump 22, and the other end of the connecting pipe 23 is fixedly installed on the top of the reagent preparation tank 11. The second pump 24 is fixedly installed on the rear side of the acid and alkali reagent storage tank 9. One end of the reagent transmission pipe 25 is fixedly installed on the output end of the second pump 24, and the other end of the reagent transmission pipe 25 is fixedly installed on one side of the reagent preparation tank 11. The wire mesh demister 26 is fixedly installed on the inner side of the Teflon-lined waste gas treatment tank 3, and the exhaust pipe 27 is fixedly installed on the top of the Teflon-lined waste gas treatment tank 3.

[0034] In this embodiment, the treatment liquid circulation and recovery assembly 2 further includes a liquid discharge pipe 28, a neutralizing agent storage tank 29, a third pump 30, and a neutralizing agent transmission pipe 31. One end of the liquid discharge pipe 28 is fixedly installed inside the Teflon-lined waste gas treatment tank 3, and the other end of the liquid discharge pipe 28 is fixedly installed on the top of the sedimentation tank 10. The neutralizing agent storage tank 29 is fixedly installed on the left side of the sedimentation tank 10, and the third pump 30 is fixedly installed on the left side of the neutralizing agent storage tank 29. The suction end of the third pump 30 is connected to the neutralizing agent storage tank 29. The neutralizing agent transmission pipe 31 is connected to the third pump 30. One end of the neutralizing agent transmission pipe 31 is fixedly installed at the output end of the third pump 30, and the other end of the neutralizing agent transmission pipe 31 is fixedly installed on one side of the sedimentation tank 10. The used agent is driven into the liquid discharge pipe 28 by the rotating cleaning scraper 21, and flows into the sedimentation tank 10 through the liquid discharge pipe 28. The third pump 30 is controlled to transfer the neutralizing agent in the neutralizing agent storage tank 29 to the sedimentation tank 10 through the neutralizing agent transmission pipe 31, so that the neutralizing agent can neutralize and filter the used agent.

[0035] In this embodiment, a diversion chamber is provided on the inner side of the rotating shaft 19 and the spray pipe 20. Multiple atomizing nozzles are fixedly installed above the spray pipe 20 and are connected to the diversion chamber. The diversion chamber allows the treatment liquid to flow into the multiple atomizing nozzles, so that the rotating spray pipe 20 sprays the liquid, resulting in a larger contact area between the treatment liquid and the exhaust gas.

[0036] In this embodiment, the top of the mounting box 4 is provided with a sliding groove, and the filter element 6 fits into the sliding groove. Both the top of the mounting box 4 and the filter element 6 are provided with threaded holes. The sliding groove facilitates the installation of the filter element 6 above the mounting box 4, allowing the filter element 6 to remove impurities from the incoming exhaust gas. The filter element 6 can be installed above the mounting box 4 with bolts, which facilitates disassembly and replacement by personnel in the future.

[0037] In this embodiment, a viewing window is provided on the rear side of the sedimentation tank 10, and an openable hatch is provided on the right side of the sedimentation tank 10; an openable hatch is provided on one side of the sedimentation tank 10, which can clean the sediment inside the sedimentation tank 10, and the viewing window allows personnel to observe the height of the sediment.

[0038] The specific operation is as follows: the waste gas to be treated enters the installation box 4 through the air inlet pipe 5. Impurities in the gas can be removed by the filter element 6. The gas enters the interior of the Teflon-lined waste gas treatment tank 3 through the gas nozzle 8 and can be diffused and sprayed out. At this time, the first pump 15 can be controlled to transfer the agent inside the agent preparation tank 11 to the rotary joint 17 through the transmission hard pipe 16. The rotary joint 17 is rotatably connected to the liquid discharge pipe 28, and the agent is transferred to the rotating shaft 19 and the spray pipe 20 through the rotary joint 17. The motor 12 is controlled to drive the drive shaft 13 to rotate. The drive shaft 13 can drive the rotary joint 17, the rotating shaft 19 and the spray pipe 20 to rotate through the bevel gear 18. After the spray pipe 20 rotates, it can rotate and spray the treatment liquid, which can make the contact area between the sprayed liquid and the gas larger and the treatment effect better. When the liquid droplets pass through the wire mesh demister 26, they can condense into water droplets and fall to the bottom of the Teflon-lined waste gas treatment tank 3.

[0039] After use, the reagent is driven into the liquid discharge pipe 28 by the rotating cleaning scraper 21, and then flows into the sedimentation tank 10. The third pump 30 is controlled to transfer the neutralizing agent in the neutralizing agent storage tank 29 to the sedimentation tank 10 through the neutralizing agent transfer pipe 31, allowing the neutralizing agent to neutralize and filter the used reagent. An openable door is provided on one side of the sedimentation tank 10 to clean the sediment inside the sedimentation tank 10. After the liquid treatment is completed, the circulation pump 22 is controlled to transfer the liquid to the reagent preparation tank 11 through the connecting pipe 23. According to the acidity or alkalinity of the waste, the second pump 24 is controlled to transfer the acid or alkali solution in the two acid and alkali reagent storage tanks 9 to the reagent preparation tank 11 through the reagent transfer pipe 25. The reagent preparation tank 11 is equipped with an acidity or alkalinity detection sensor. The rotating drive shaft 13 can drive the stirring rod 14 to mix and prepare the liquid, so that the device can treat acid and alkali waste gas effectively.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A Teflon acid and alkali waste gas treatment tank, characterized in that, include: A Teflon-lined exhaust gas treatment tank (3) is provided, with two acid and alkali reagent storage tanks (9) fixedly installed at the bottom of the Teflon-lined exhaust gas treatment tank (3), and a sedimentation tank (10) fixedly installed at the bottom of the acid and alkali reagent storage tanks (9). An acid and alkali exhaust gas treatment component (1) is provided on the Teflon-lined exhaust gas treatment tank (3), the acid and alkali reagent storage tanks (9) and the sedimentation tank (10). The acid and alkali waste gas treatment component (1) includes a reagent preparation tank (11), a motor (12), a drive shaft (13), a stirring rod (14), a first pump (15), and a transmission hard pipe (16). The reagent preparation tank (11) is fixedly installed on the top of the sedimentation tank (10). The motor (12) is fixedly installed on the rear side of the reagent preparation tank (11). The drive shaft (13) is fixedly installed on the output end of the motor (12). The stirring rod (14) is fixedly installed around the outside of the drive shaft (13). The first pump (15) is fixedly installed on the front side of the reagent preparation tank (11). The suction end of the first pump (15) is connected to the reagent preparation tank (11). One end of the transmission hard pipe (16) is fixedly installed on the output end of the first pump (15).

2. The Teflon acid and alkali waste gas treatment tank according to claim 1, characterized in that, An installation box (4) is fixedly installed on the outside of the Teflon-lined waste gas treatment tank (3). A filter element (6) is bolted on the inside of the installation box (4). An air inlet pipe (5) is fixedly installed on one side of the installation box (4). One end of a conveying pipe (7) is fixedly installed on the other side of the installation box (4). A gas nozzle (8) is fixedly installed on the other end of the conveying pipe (7). The gas nozzle (8) is located inside the Teflon-lined waste gas treatment tank (3). A treatment liquid circulation and recovery assembly (2) is installed on the acid and alkali reagent storage tank (9), the sedimentation tank (10), and the Teflon-lined waste gas treatment tank (3).

3. The Teflon acid and alkali waste gas treatment tank according to claim 1, characterized in that, The acid and alkali waste gas treatment assembly (1) also includes a rotary joint (17), a bevel gear (18), a rotating shaft (19), a spray pipe (20), and a cleaning scraper (21). The rotary joint (17) is rotatably installed on the outside of the other end of the transmission hard pipe (16). The bevel gear (18) is fixedly installed on the outside of the rotary joint (17) and the drive shaft (13). Two adjacent bevel gears (18) mesh with each other. The rotating shaft (19) is fixedly installed on the top of the rotary joint (17). The spray pipe (20) is fixedly installed on the rotating shaft (19). The cleaning scraper (21) is fixedly installed on the outside of the rotary joint (17). The bottom of the cleaning scraper (21) is in contact with the bottom inner wall of the Teflon-lined waste gas treatment tank (3).

4. The Teflon acid and alkali waste gas treatment tank according to claim 2, characterized in that, The treatment liquid circulation and recovery assembly (2) includes a circulation pump (22), a connecting pipe (23), a second pump (24), a reagent transfer pipe (25), a wire mesh demister (26), and an exhaust pipe (27). The circulation pump (22) is fixedly installed on the top of the sedimentation tank (10), and the suction end of the circulation pump (22) is connected to the sedimentation tank (10). One end of the connecting pipe (23) is fixedly installed on the output end of the circulation pump (22), and the other end of the connecting pipe (23) is fixedly installed on the reagent preparation tank. At the top of (11), two second pumps (24) are fixedly installed on the rear side of two acid and alkali reagent storage tanks (9), one end of the reagent transmission pipe (25) is fixedly installed at the output end of the second pump (24), and the other end of the reagent transmission pipe (25) is fixedly installed on one side of the reagent preparation tank (11). The wire mesh demister (26) is fixedly installed on the inner side of the Teflon-lined waste gas treatment tank (3), and the exhaust pipe (27) is fixedly installed on the top of the Teflon-lined waste gas treatment tank (3).

5. A Teflon acid and alkali waste gas treatment tank according to claim 2, characterized in that, The treatment liquid recycling assembly (2) also includes a liquid discharge pipe (28), a neutralizer storage tank (29), a third pump (30), and a neutralizer transmission pipe (31). One end of the liquid discharge pipe (28) is fixedly installed inside the Teflon-lined waste gas treatment tank (3), and the other end of the liquid discharge pipe (28) is fixedly installed at the top of the sedimentation tank (10). The neutralizer storage tank (29) is fixedly installed on the left side of the sedimentation tank (10). The third pump (30) is fixedly installed on the left side of the neutralizer storage tank (29). The suction end of the third pump (30) is connected to the neutralizer storage tank (29). One end of the neutralizer transmission pipe (31) is fixedly installed at the output end of the third pump (30), and the other end of the neutralizer transmission pipe (31) is fixedly installed on one side of the sedimentation tank (10).

6. The Teflon acid and alkali waste gas treatment tank according to claim 3, characterized in that, A diversion chamber is provided on the inner side of the rotating shaft (19) and the spray pipe (20). Multiple atomizing nozzles are fixedly installed above the spray pipe (20), and the atomizing nozzles are connected to the diversion chamber.

7. A Teflon acid and alkali waste gas treatment tank according to claim 2, characterized in that, The top of the mounting box (4) is provided with a sliding groove, and the filter element (6) fits into the sliding groove. Both the top of the mounting box (4) and the filter element (6) are provided with threaded holes.

8. The Teflon acid and alkali waste gas treatment tank according to claim 1, characterized in that, A viewing window is provided on the rear side of the sedimentation tank (10), and an openable door is provided on the right side of the sedimentation tank (10).

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