Mist acid absorber
By designing a fog acid absorber and using the combined structure of the spray tank and the buffer tank, the pressure and corrosion problems caused by acid gas in the circulation tank are solved, and the efficient absorption and recycling of acid mist is achieved, and the safety and environmental protection of the equipment are improved.
Patent Information
- Application Number
- CN202420652203.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The dissolved sulfur dioxide gas in the circulation tank leads to a pressure hold state, affecting the accuracy of the liquid level gauge, posing safety risks, and acidic gases irritate and choke, making it easy to corrode the equipment.
A mist acid absorber is designed, including a circulation tank, a first acid mist treatment device and a second acid mist treatment device. Using a combined structure of a spray tank and a buffer tank, acid gas is absorbed and dissolved through a spray dissolution and water sealing, and is recovered and reused through an overflow tube.
It effectively reduces the unorganized emission of acid gas, protects the environment, improves the safety and stability of circulation tank operation, and realizes the recycling and recycling of acid mist, saving raw materials.
Smart Images
Figure CN222641658U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of gas purification, and specifically relates to a mist acid absorber. Background Art
[0002] The circulating tank in the acid production process is a normal pressure device with a sampling port for analyzing the acid concentration and a liquid level meter for detecting the liquid level in the circulating tank. However, the sulfur dioxide gas dissolved in the circulating acid will cause the gas in the circulating tank to be in a state of pressure holding, which may cause the liquid level meter to be inaccurate and pose a safety hazard. In addition, there is a clear irritating and choking odor in the circulating tank. In addition, the drifting acidic gas is also prone to corroding pipelines and equipment.
[0003] Therefore, improvements are urgently needed. Utility Model Content
[0004] In view of the above-mentioned defects existing in the prior art, the utility model provides a mist acid absorber, comprising a circulation tank for storing acid, a first acid mist treatment device and a second acid mist treatment device, the circulation tank is provided with an acid mist outlet, the first acid mist treatment device and the second acid mist treatment device both comprise a spray tank and a buffer tank, a detachable top cover is provided on the top of the spray tank, and an exhaust port is provided on the top cover, the bottom of the spray tank is open, a packing layer is provided inside the spray tank, the buffer tank is provided below the spray tank, the buffer tank is sealed and connected to the bottom of the spray tank through a water seal, and the inner wall of the buffer tank is fixedly connected to the outer wall of the spray tank through a plurality of fixing rods, and the middle part of the spray tank of the first acid mist treatment device is connected through a The first air duct is connected with the acid mist outlet of the circulation tank, and a primary spray is arranged on the upper part of the spray tank of the first acid mist treatment device, the middle part of the spray tank of the second acid mist treatment device is connected with the exhaust port of the spray tank of the first acid mist treatment device through the second air duct, and a secondary spray is arranged on the upper part of the spray tank of the second acid mist treatment device; wherein, the packing layer corresponds to the position of the connection port of the spray tank and the first air duct or the second air duct, and is located below the primary spray or the secondary spray, and a filter plate is fixed below the packing layer, and the filter plate plays the role of supporting materials and filtering water; in addition, the top cover is fixed to the spray tank by a snap buckle, and a detachable structure is adopted to facilitate the replacement of internal packing.
[0005] Optionally, the packing layer adopts a ceramic saddle ring.
[0006] Specifically, the ceramic isosaddle ring can increase the contact time and contact area between the acid gas and water, and promote the dissolution of the acid gas in water.
[0007] Optionally, both the primary spray and the secondary spray are connected to an external water source through a spray pipe, and a water pump and a valve are provided on the spray pipe.
[0008] Specifically, both the first-stage spraying and the second-stage spraying use primary water.
[0009] Optionally, the buffer tanks of the first acid mist treatment device and the second acid mist treatment device are both provided with overflow ports, and the overflow ports are connected to overflow pipes.
[0010] Specifically, the buffer tank can not only act as a water seal to prevent acidic gases from overflowing from the bottom of the spray tank into the air, but also return the regenerated acid liquid to the acid production system through the overflow pipe, thereby achieving the effect of recycling and reuse.
[0011] The utility model also includes other components that enable the mist acid absorber to be used normally, which are all conventional technical means in the art. In addition, the devices or components not limited in the utility model all adopt conventional technical means in the art.
[0012] The working principle of the utility model is, for the convenience of description, it is set that: the first acid mist treatment device includes a first spray tank and a first buffer tank, and the second acid mist treatment device includes a second spray tank and a second buffer tank; acid gases such as sulfuric acid mist and sulfur dioxide in the circulation tank enter the first spray tank through the first air duct, and the water pump and valve on the spray pipeline are turned on. The first-level spray can spray and dissolve the acid gas in the first spray tank. At this time, most of the acid gas in the first spray tank is dissolved by water and flows downward to the first buffer tank for collection, while a small part of the acid gas enters the second spray tank along the second air duct, and flows to the second buffer tank for collection under the spray dissolution action of the second-level spray, and is discharged after being tested and qualified, which can not only ensure that the exhaust gas meets the standards but also ensure the accurate measurement of the liquid level meter in the circulation tank.
[0013] The utility model has the beneficial effects of simple structure, convenient use, can reduce unorganized emission of acid gas, protect the surrounding environment, improve the safety and stability of circulation tank operation, recover acid mist in the gas and recycle it, saving raw materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0016] Figure 2 It is a structural schematic diagram of the second acid mist treatment device of the utility model.
[0017] In the figure: 1. circulation tank, 2. first spray tank, 3. first buffer tank, 4. first air duct, 5. first-stage spray, 6. second spray tank, 7. second buffer tank, 8. second air duct, 9. second-stage spray, 10. top cover, 11. exhaust port, 12. fixing rod, 13. packing layer, 14. water pump, 15. valve, 16. overflow pipe, 17. spray pipe. DETAILED DESCRIPTION
[0018] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention.
[0019] Example
[0020] like Figure 1-2 As shown, an embodiment of the utility model provides a mist acid absorber, comprising a circulation tank 1 for storing acid, a first acid mist treatment device and a second acid mist treatment device, the circulation tank 1 is provided with an acid mist outlet, the first acid mist treatment device comprises a first spray tank 2 and a first buffer tank 3, the second acid mist treatment device comprises a second spray tank 6 and a second buffer tank 7, the tops of the first spray tank 2 and the second spray tank 6 are both provided with a detachable top cover 10, and the top cover 10 is provided with an exhaust port 11, the bottoms of the first spray tank 2 and the second spray tank 6 are both open, the interiors of the first spray tank 2 and the second spray tank 6 are both provided with a packing layer 13, the first buffer tank 3 and the second buffer tank 7 are respectively arranged below the first spray tank 2 and the second spray tank 6, and the first buffer tank 3 and the second buffer tank 7 are respectively sealed with the bottom of the corresponding spray tank through a water seal. The two buffer tanks are sealed and connected, and the inner walls of the two buffer tanks are fixedly connected to the outer walls of the corresponding spray tanks through a number of fixing rods 12, the middle part of the first spray tank 2 is connected to the acid mist outlet of the circulation tank 1 through the first air duct 4, and the upper part of the first spray tank 2 is provided with a primary spray 5, the middle part of the second spray tank 6 is connected to the exhaust port 11 of the first spray tank 2 through the second air duct 8, and the upper part of the second spray tank 6 is provided with a secondary spray 9; wherein, the packing layer 13 corresponds to the position of the connection port between the spray tank and the first air duct 4 or the second air duct 8, and is located below the primary spray 5 or the secondary spray 9, and a filter plate is fixed below the packing layer 13, and the filter plate plays a role of supporting materials and filtering water; in addition, the top cover 10 is fixed to the spray tank by a buckle, and a detachable structure is adopted to facilitate the replacement of internal packing.
[0021] The packing layer 13 is made of ceramic saddle rings, which can increase the contact time and contact area between the acid gas and water and promote the dissolution of the acid gas in water.
[0022] The primary spray 5 and the secondary spray 9 are both connected to an external water source through a spray pipe 17, and a water pump 14 and a valve 15 are provided on the spray pipe 17. The primary spray 5 and the secondary spray 9 both use primary water.
[0023] The first buffer tank 3 and the second buffer tank 7 are both provided with overflow ports, and the overflow ports are connected to the overflow pipe 16. The buffer tank can not only play a water seal role to prevent the acid gas from overflowing from the bottom of the spray tank into the air, but also can reuse the regenerated acid liquid to the acid production system through the overflow pipe 16, so as to achieve the effect of recycling and reuse.
[0024] The working principle of the utility model is that the sulfuric acid mist and sulfur dioxide and other acidic gases in the circulation tank 1 enter the first spray tank 2 through the first air duct 4, and the water pump 14 and the valve 15 on the spray pipe 17 are turned on. The first-level spray 5 can spray and dissolve the acidic gas in the first spray tank 2. At this time, most of the acidic gas in the first spray tank 2 is dissolved by water and flows downward to the first buffer tank 3 for collection, while a small part of the acidic gas enters the second spray tank 6 along the second air duct 8, and flows to the second buffer tank 7 for collection under the spraying and dissolving action of the second-level spray 9, and is discharged after being tested and qualified, which can not only ensure that the exhaust gas meets the standard but also ensure the accurate measurement of the liquid level meter of the circulation tank 1.
[0025] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.
Claims
1. A mist acid absorber, comprising a circulation tank for storing acid, a first acid mist treatment device and a second acid mist treatment device, characterized in that: The circulation tank is provided with an acid mist outlet, the first acid mist treatment device and the second acid mist treatment device both include a spray tank and a buffer tank, a detachable top cover is provided on the top of the spray tank, and an exhaust port is provided on the top cover, the bottom of the spray tank is open, a packing layer is provided inside the spray tank, the buffer tank is provided below the spray tank, the buffer tank is sealed and connected to the bottom of the spray tank through a water seal, and the inner wall of the buffer tank is fixedly connected to the outer wall of the spray tank through a plurality of fixing rods, the middle part of the spray tank of the first acid mist treatment device is connected to the acid mist outlet of the circulation tank through a first air duct, and a first-level spray is provided on the upper part of the spray tank of the first acid mist treatment device, the middle part of the spray tank of the second acid mist treatment device is connected to the exhaust port of the spray tank of the first acid mist treatment device through a second air duct, and a second-level spray is provided on the upper part of the spray tank of the second acid mist treatment device.
2. The mist acid absorber according to claim 1, characterized in that: The packing layer adopts ceramic saddle ring.
3. The mist acid absorber according to claim 1, characterized in that: Both the primary spray and the secondary spray are connected to an external water source through a spray pipe, and a water pump and a valve are provided on the spray pipe.
4. The mist acid absorber according to claim 1, characterized in that: The buffer tanks of the first acid mist treatment device and the second acid mist treatment device are both provided with overflow ports, and the overflow ports are connected with overflow pipes.