A mechanically automated hydrogen fluoride absorption device

Abstract

This invention relates to the field of chemical equipment technology, and in particular to a mechanically automated hydrogen fluoride absorption device, comprising a hydrogen fluoride absorption tower. An inlet on one side of the top of the absorption tower is connected to a pressurized inlet assembly. Inside the absorption tower, a first absorption section and a second absorption section are fixedly connected from top to bottom. The second absorption section includes a cyclone assembly, the top of which is connected to the bottom of the first absorption section. Several equally spaced atomizing spray components surround the outer side of the middle of the cyclone assembly, and these atomizing spray components are fixed to the inner wall of the absorption tower. An atomizing nozzle is fixedly connected to the center of the bottom of the cyclone assembly. A liquid collection assembly is connected to the bottom of the absorption tower. The outlet of the absorption tower is connected to a secondary absorption assembly via a first connecting pipe. This invention, by incorporating the cyclone assembly, extends the residence time of the hydrogen fluoride-containing gas, allowing it to fully react with the absorbent sprayed by the atomizing spray components, thereby significantly improving the hydrogen fluoride absorption efficiency.

Description

Technical Field

[0001] This invention relates to the field of chemical equipment technology, and in particular to a mechanically automated hydrogen fluoride absorption device. Background Technology

[0002] Hydrogen fluoride dissolves in water to form hydrofluoric acid, which can be absorbed through the skin, mucous membranes, respiratory tract, and gastrointestinal tract, posing a significant health hazard. Many industrial processes release exhaust gases containing hydrogen fluoride. Purifying these gases to meet national environmental standards is crucial for the country and its people. Therefore, designing and developing hydrogen fluoride gas absorption devices is essential for better handling of harmful gases like hydrogen fluoride, saving production costs, and improving the working environment.

[0003] Existing hydrogen fluoride absorption devices mostly use spraying devices, where the absorbent is sprayed from the top of the tower. However, this method has low absorption efficiency and poor hydrogen fluoride absorption effect. Therefore, there is an urgent need for a mechanically automated hydrogen fluoride absorption device to solve this problem. Summary of the Invention

[0004] The purpose of this invention is to provide a mechanically automated hydrogen fluoride absorption device to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following solution: a mechanically automated hydrogen fluoride absorption device, comprising a hydrogen fluoride absorption tower, an air inlet on one side of the top of the hydrogen fluoride absorption tower being connected to a pressurized air inlet assembly, a first absorption section and a second absorption section being fixedly connected from top to bottom inside the hydrogen fluoride absorption tower, the second absorption section including a cyclone assembly, the top of the cyclone assembly being connected to the bottom of the first absorption section, a plurality of equally spaced atomizing liquid spraying assemblies surrounding the outer side of the middle of the cyclone assembly, the atomizing liquid spraying assemblies being fixedly connected to the inner wall of the hydrogen fluoride absorption tower, an atomizing nozzle being fixedly connected to the center of the bottom of the cyclone assembly, the bottom of the cyclone assembly being connected to the interior of the hydrogen fluoride absorption tower, a liquid collection assembly being connected to the bottom of the hydrogen fluoride absorption tower, and a secondary absorption assembly being connected to the outlet of the hydrogen fluoride absorption tower through a first connecting pipe, the outlet of the hydrogen fluoride absorption tower being located between the cyclone assembly and the liquid collection assembly.

[0006] Preferably, the pressurized air intake assembly includes a jet vacuum system, the outlet of which is connected to the inlet of the hydrogen fluoride absorption tower.

[0007] Preferably, the cyclone assembly includes a second gas equalization plate, the sidewall of which is fixedly connected to the inner wall of the hydrogen fluoride absorption tower, a first cyclone section is fixedly connected to and communicates with the middle of the second gas equalization plate, a plurality of fifth gas holes are arranged around the edge of the second gas equalization plate, the fifth gas holes and the first cyclone section communicate with the bottom of the first absorption section, a second cyclone section is fixedly connected to and communicates with the bottom of the first cyclone section, the bottom of the second cyclone section is fixedly connected to the top of the atomizing nozzle, and a plurality of atomizing spraying components are arranged around the outside of the first cyclone section.

[0008] Preferably, the first cyclone section includes a cyclone wall, which is fixedly connected to the second gas equalization plate. The cyclone wall penetrates the middle of the second gas equalization plate. The bottom of the cyclone wall is fixedly connected to and communicates with the top of the second cyclone section. A plurality of first air holes are provided at equal intervals around the middle of the cyclone wall. An inclined first baffle is fixedly connected to one side of each of the first air holes. The angle between the first baffle and the outer wall of the cyclone wall is 45°. A plurality of second air holes are provided at equal intervals around the bottom sidewall of the cyclone wall. The first air holes and the second air holes communicate with the interior of the hydrogen fluoride absorption tower. A plurality of atomizing liquid spraying components are arranged around the outside of the cyclone wall.

[0009] Preferably, the second cyclone section includes a first air distribution plate, the top of which is fixedly connected to the bottom of the cyclone wall. The first air distribution plate is provided with a plurality of third and fourth air holes at equal intervals in the circumferential direction. The plurality of fourth air holes are located on the inner side of the cyclone wall and communicate with the inner side of the cyclone wall. The plurality of third air holes are located on the outer side of the cyclone wall and communicate with the outer side of the cyclone wall. An inclined second baffle is fixedly connected to one side of the bottom of the third air hole. The high end of the second baffle is located between the third and fourth air holes. The top of the atomizing nozzle is fixedly connected to the center of the bottom of the first air distribution plate.

[0010] Preferably, the first absorption section includes packing material, which is filled in the middle of the hydrogen fluoride absorption tower. The packing material is fluorogypsum filter media particles with a particle size of 4-6 mm, and the bottom of the packing material is connected to the top of the second gas equalization plate.

[0011] Preferably, the liquid collection assembly includes a by-product tank, which is fixedly connected to and communicates with the bottom of the hydrogen fluoride absorption tower.

[0012] Preferably, the secondary absorption assembly includes two exhaust gas purification towers connected in sequence. The inlet of the exhaust gas purification tower located near the hydrogen fluoride absorption tower is connected to the first connecting pipe. The outlet of the exhaust gas purification tower is connected to the inlet of an air pump. The outlet of the air pump is connected to the inlet of the other exhaust gas purification tower. The inlet of the exhaust gas purification tower is located below the side wall of the exhaust gas purification tower, and the outlet of the exhaust gas purification tower is located above the side wall of the exhaust gas purification tower. An absorption section is provided between the inlet and outlet of the exhaust gas purification tower.

[0013] Preferably, the absorption section includes a support plate, which is fixedly connected to the inner wall of the exhaust gas purification tower. An aeration head is fixedly connected to the middle of the support plate, and the top of the support plate is filled with washing liquid. The air outlet of the aeration head is located in the washing liquid, and the air inlet of the aeration head is located on the side away from the washing liquid.

[0014] This invention has the following technical effects: During use, the exhaust gas containing hydrogen fluoride is injected into the hydrogen fluoride absorption tower at a certain pressure by the pressurized inlet assembly. After initial absorption by the first absorption section, it enters the second absorption section. A cyclone is generated by the cyclone assembly in the second absorption section, while simultaneously, several equally spaced atomizing spray components surrounding the outer side of the cyclone assembly spray absorbent liquid. The cyclone prolongs the residence time of the hydrogen fluoride-containing gas within the hydrogen fluoride absorption tower, ensuring that the hydrogen fluoride is fully absorbed by the absorbent liquid. The absorbent liquid, having absorbed the hydrogen fluoride, flows down the bottom of the cyclone assembly into the inner part of the hydrogen fluoride absorption tower. The gas flows onto the wall and along the inner wall into the liquid collection assembly. Unabsorbed hydrogen fluoride gas flows out from the bottom of the cyclone assembly and is then sprayed with absorbent liquid through an atomizing nozzle fixed to the center of the bottom of the cyclone assembly for secondary treatment, further improving the hydrogen fluoride absorption rate. The gas with removed hydrogen fluoride enters the secondary absorption assembly through a connecting pipe, where it is further absorbed before being released into the atmosphere. By setting up the cyclone assembly, the residence time of the hydrogen fluoride-containing gas is extended, allowing it to fully react with the absorbent liquid sprayed by the atomizing nozzle, thereby greatly improving the hydrogen fluoride absorption efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the cyclone component structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the second air distribution plate structure of the present invention;

[0019] Figure 4 For the present invention Figure 2 Schematic diagram of the AA section structure;

[0020] Figure 5 This is a schematic diagram of the first air distribution plate structure of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0022] Figure 7 For the present invention Figure 6 Enlarged view of a section at point B in the middle;

[0023] The components include: 1. Jetting vacuum system; 2. Hydrogen fluoride absorption tower; 3. Packing material; 4. Cyclone assembly; 5. Atomizing liquid spray assembly; 6. Atomizing nozzle; 7. By-product tank; 8. First connecting pipe; 9. Tail gas purification tower; 10. Support plate; 11. Aeration head; 12. Washing liquid; 13. Air pump; 401. Cyclone wall; 402. First air hole; 403. First baffle; 404. Second air hole; 405. Third air hole; 406. Second baffle; 407. Fourth air hole; 408. First gas equalization plate; 409. Second gas equalization plate; 410. Fifth air hole; 501. Liquid nozzle; 502. Gas-liquid mixing chamber; 503. Suction pipe; 504. First Venturi tube; 505. Cover; 506. Nozzle core; 507. Second Venturi tube; 508. Nozzle cover. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1:

[0027] refer to Figures 1 to 5This embodiment provides a mechanically automated hydrogen fluoride absorption device, including a hydrogen fluoride absorption tower 2. An air inlet on one side of the top of the hydrogen fluoride absorption tower 2 is connected to a pressurized air inlet assembly. A first absorption section and a second absorption section are sequentially fixed inside the hydrogen fluoride absorption tower 2 from top to bottom. The second absorption section includes a cyclone assembly 4. The top of the cyclone assembly 4 is connected to the bottom of the first absorption section. Several equally spaced atomizing spray assemblies 5 surround the outer side of the middle of the cyclone assembly 4. The atomizing spray assemblies 5 are fixed to the inner wall of the hydrogen fluoride absorption tower 2. An atomizing nozzle 6 is fixed to the center of the bottom of the cyclone assembly 4. The bottom of the cyclone assembly 4 is connected to the interior of the hydrogen fluoride absorption tower 2. A liquid collection assembly is connected to the bottom of the hydrogen fluoride absorption tower 2. The outlet of the hydrogen fluoride absorption tower 2 is connected to a secondary absorption assembly through a first connecting pipe 8. The outlet of the hydrogen fluoride absorption tower 2 is located between the cyclone assembly 4 and the liquid collection assembly.

[0028] During operation, the exhaust gas containing hydrogen fluoride is injected into the hydrogen fluoride absorption tower 2 at a certain pressure through the pressurized inlet assembly. After initial absorption in the first absorption section, it enters the second absorption section. A cyclone is generated by the cyclone assembly 4 in the second absorption section. Simultaneously, several equally spaced atomizing spray components 5 surrounding the outer side of the cyclone assembly 4 spray absorbent liquid. The cyclone prolongs the residence time of the hydrogen fluoride-containing gas in the hydrogen fluoride absorption tower 2, allowing the hydrogen fluoride to be fully absorbed by the absorbent liquid. The absorbent liquid, having absorbed the hydrogen fluoride, flows down the bottom of the cyclone assembly 4 onto the inner wall of the hydrogen fluoride absorption tower 2, and then flows down the inner wall... The hydrogen fluoride gas enters the liquid collection assembly from the wall. After flowing out from the bottom of the cyclone assembly 4, the unabsorbed hydrogen fluoride gas is sprayed out by the atomizing nozzle 6 fixed to the center of the bottom of the cyclone assembly 4 to perform secondary treatment, further improving the absorption rate of hydrogen fluoride. The gas with hydrogen fluoride removed enters the secondary absorption assembly through the first connecting pipe 8. After further absorption by the secondary absorption assembly, it is discharged into the atmosphere. By setting up the cyclone assembly 4, the residence time of the hydrogen fluoride-containing gas is extended, allowing it to fully react with the absorption liquid sprayed by the atomizing spray assembly 5, thereby greatly improving the hydrogen fluoride absorption efficiency.

[0029] Further optimization of the scheme: the pressurized air intake component includes a jet vacuum system 1, and the outlet of the jet vacuum system 1 is connected to the inlet of the hydrogen fluoride absorption tower 2.

[0030] The jet vacuum system 1 is preferably a PNK630 type vacuum jet system. The jet vacuum system 1 is used to pump the tail gas containing hydrogen fluoride into the hydrogen fluoride absorption tower 2 and increase the gas pressure. The jet vacuum system 1 is existing technology and will not be described in detail here.

[0031] The scheme is further optimized. The cyclone assembly 4 includes a second gas equalization plate 409. The side wall of the second gas equalization plate 409 is fixedly connected to the inner wall of the hydrogen fluoride absorption tower 2. The middle part of the second gas equalization plate 409 is fixedly connected to and connected to the first cyclone section. The edge of the second gas equalization plate 409 is surrounded by a number of fifth gas holes 410. The fifth gas holes 410 and the first cyclone section are connected to the bottom of the first absorption section. The bottom of the first cyclone section is fixedly connected to and connected to the second cyclone section. The bottom of the second cyclone section is fixedly connected to the top of the atomizing nozzle 6. A number of atomizing liquid spraying assemblies 5 are arranged around the outside of the first cyclone section.

[0032] Further optimizing the scheme, the first cyclone section includes a cyclone wall 401, which is fixedly connected to the second gas equalization plate 409. The cyclone wall 401 penetrates the middle of the second gas equalization plate 409. The bottom of the cyclone wall 401 is fixedly connected to and communicates with the top of the second cyclone section. A number of first air holes 402 are evenly spaced around the middle of the cyclone wall 401. An inclined first baffle 403 is fixedly connected to one side of the first air hole 402. The angle between the first baffle 403 and the outer wall of the cyclone wall 401 is 45°. A number of second air holes 404 are evenly spaced around the bottom side wall of the cyclone wall 401. The first air holes 402 and the second air holes 404 communicate with the interior of the hydrogen fluoride absorption tower 2. A number of atomizing liquid spraying components 5 are arranged around the outside of the cyclone wall 401.

[0033] In a further optimized design, the second cyclone section includes a first air distribution plate 408. The top of the first air distribution plate 408 is fixedly connected to the bottom of the cyclone wall 401. The first air distribution plate 408 is provided with a plurality of third air holes 405 and fourth air holes 407 at equal intervals in the circumferential direction. The plurality of fourth air holes 407 are located on the inner side of the cyclone wall 401 and are connected to the inner side of the cyclone wall 401. The plurality of third air holes 405 are located on the outer side of the cyclone wall 401 and are connected to the outer side of the cyclone wall 401. An inclined second baffle 406 is fixedly connected to one side of the bottom of the third air hole 405. The high end of the second baffle 406 is located between the third air hole 405 and the fourth air hole 407. The top of the atomizing nozzle 6 is fixedly connected to the center of the bottom of the first air distribution plate 408.

[0034] The scheme is further optimized. The first absorption section includes packing 3, which is filled in the middle of the hydrogen fluoride absorption tower 2. The packing 3 is fluorogypsum filter material particles with a particle size of 4-6mm. The bottom of the packing 3 is connected to the top of the second gas equalization plate 409.

[0035] The scheme has been further optimized. The liquid collection component includes a by-product tank 7, which is fixedly connected to and communicates with the bottom of the hydrogen fluoride absorption tower 2.

[0036] When the exhaust gas containing hydrogen fluoride passes through the fluorogypsum filter particles and enters the second gas equalization plate 409, part of the exhaust gas enters the sealed cavity formed by the first gas equalization plate 408, the second gas equalization plate 409, and the hydrogen fluoride absorption tower 2 through the fifth gas hole 410. The remaining exhaust gas enters the cyclone wall 401 and then enters the sealed cavity through the first gas hole 402 and the second gas hole 404. The size of the first gas hole 402 is much larger than the size of the second gas hole 404, allowing most of the exhaust gas to pass through the first gas hole 402. A first baffle 403 is fixedly attached to one side of the first gas hole 402, with an angle of 45° between the first baffle 403 and the outer wall of the cyclone wall 401. This causes the exhaust gas to be ejected obliquely along the direction of the first baffle 403, thus forming a cyclone surrounding the cyclone wall 401. The cyclone will drive the fifth gas equalization plate 408, the second gas equalization plate 409, and the hydrogen fluoride absorption tower 2. The exhaust gas in the vent 410 and the second vent 404 enters the sealed cavity, prolonging its residence time. At this time, the atomizing spray assembly 5 sprays absorbent liquid. The absorbent liquid that has absorbed hydrogen fluoride falls onto the second baffle 406 through the third vent 405. The second baffle 406 guides the absorbent liquid to the inner wall of the hydrogen fluoride absorption tower 2, allowing it to flow into the by-product tank 7 along the inner wall of the hydrogen fluoride absorption tower 2. Some of the exhaust gas containing hydrogen fluoride will escape to the area below the first gas equalization plate 408 through the third vent 405. To ensure the exhaust gas treatment efficiency, some exhaust gas will also enter the area below the first gas equalization plate 408 through the fourth vent 407. At this time, absorbent liquid is sprayed out through the atomizing nozzle 6 to further treat the remaining hydrogen fluoride in the exhaust gas, thereby improving the absorption efficiency of hydrogen fluoride.

[0037] The atomizing spray assembly 5 is preferably structurally identical to the atomizing nozzle 6.

[0038] The absorbent is preferably water.

[0039] The bottom of the hydrogen fluoride absorption tower 2 is funnel-shaped to facilitate the collection of the absorption liquid.

[0040] Further optimization of the scheme: the secondary absorption component includes two exhaust gas purification towers 9 connected in sequence. The air inlet of the exhaust gas purification tower 9 located near the hydrogen fluoride absorption tower 2 is connected to the first connecting pipe 8. The air outlet of the exhaust gas purification tower 9 is connected to the air inlet of the air pump 13. The air outlet of the air pump 13 is connected to the air inlet of the other exhaust gas purification tower 9. The air inlet of the exhaust gas purification tower 9 is located below the side wall of the exhaust gas purification tower 9, and the air outlet of the exhaust gas purification tower 9 is located above the side wall of the exhaust gas purification tower 9. An absorption section is provided between the air inlet and the air outlet of the exhaust gas purification tower 9.

[0041] The scheme is further optimized. The absorption section includes a support plate 10, which is fixedly connected to the inner wall of the exhaust gas purification tower 9. An aeration head 11 is fixedly connected to the middle of the support plate 10. The top of the support plate 10 is filled with washing liquid 12. The air outlet of the aeration head 11 is located in the washing liquid 12, and the air inlet of the aeration head 11 is located on the side away from the washing liquid 12.

[0042] When the treated exhaust gas enters the bottom of the exhaust gas purification tower 9 located at the front end through the first connecting pipe 8, in order to ensure the purification effect, the exhaust gas rises into the aeration head 11. The aeration head 11 splits the gas into smaller bubbles that rise in the washing liquid 12. During the rising process, the exhaust gas is further treated by the washing liquid 12. After being treated by the two exhaust gas purification towers 9, it is ensured that the exhaust gas emitted into the atmosphere does not contain hydrogen fluoride.

[0043] The washing solution 12 is preferably water.

[0044] Example 2:

[0045] refer to Figures 6 to 7 The difference between this embodiment and Embodiment 1 is only that the atomizing spray assembly 5 includes a first Venturi tube 504, one end of which is provided with a gas-liquid mixing chamber 502. A liquid nozzle 501 is fixedly connected to the center of the end of the gas-liquid mixing chamber 502. Several suction pipes 503 are fixedly connected to the side wall of the gas-liquid mixing chamber 502 at equal intervals. One end of the suction pipe 503 is connected to the gas-liquid mixing chamber 502, and the other end of the suction pipe 503 is connected to the interior of the hydrogen fluoride absorption tower 2. The first Venturi tube 504 is located away from the gas-liquid mixing chamber. A cover 505 is fixedly connected to one end of the cavity 502. The cover 505 has several leakage holes. A nozzle core 506 is fixedly connected to the outside of the cover 505. A second venturi channel 507 is provided inside the nozzle core 506. One end of the second venturi channel 507 is connected to several leakage holes of the cover 505. A nozzle cap 508 is fixedly connected to the end of the nozzle core 506 away from the cover 505. The nozzle cap 508 has a spherical structure and several water spray holes are provided on the nozzle cap 508. The water spray holes are connected to one end of the second venturi channel 507.

[0046] When the absorbent enters the first Venturi tube 504 through the liquid nozzle 501, due to the Venturi effect, the tail gas containing hydrogen fluoride in the hydrogen fluoride absorption tower 2 is drawn into the gas-liquid mixing chamber 502 through the suction pipe 503. At this time, the absorbent has begun to react with the hydrogen fluoride. Subsequently, the absorbent that has initially absorbed the hydrogen fluoride reaches the cover 505 through the first Venturi tube 504, and enters the second Venturi pipe 507 through several holes on the surface of the cover 505. In the second Venturi pipe 507, the Venturi effect forms mist-like water droplets, which are dispersed and sprayed out through several spray holes on the nozzle cover 508, expanding the effective area of ​​the mist-like absorbent and thus improving the absorption effect of the absorbent and hydrogen fluoride.

[0047] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0048] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A mechanically automated hydrogen fluoride absorption device, characterized in that: The system includes a hydrogen fluoride absorption tower (2), with an air inlet on one side of the top of the hydrogen fluoride absorption tower (2) connected to a pressurized air inlet assembly. The hydrogen fluoride absorption tower (2) is internally fixed with a first absorption section and a second absorption section from top to bottom. The second absorption section includes a cyclone assembly (4). The top of the cyclone assembly (4) is connected to the bottom of the first absorption section. The outer side of the middle of the cyclone assembly (4) is surrounded by several equally spaced atomizing spray assemblies (5). The atomizing spray assemblies (5) are fixed to the inner wall of the hydrogen fluoride absorption tower (2). An atomizing nozzle (6) is fixed to the center of the bottom of the cyclone assembly (4). The bottom of the cyclone assembly (4) is connected to the interior of the hydrogen fluoride absorption tower (2). A liquid collection assembly is connected to the bottom of the hydrogen fluoride absorption tower (2). The outlet of the hydrogen fluoride absorption tower (2) is connected to a secondary absorption assembly through a first connecting pipe (8). The outlet of the hydrogen fluoride absorption tower (2) is located between the cyclone assembly (4) and the liquid collection assembly. The cyclone assembly (4) includes a second gas equalization plate (409). The side wall of the second gas equalization plate (409) is fixedly connected to the inner wall of the hydrogen fluoride absorption tower (2). The middle part of the second gas equalization plate (409) is fixedly connected to and connected to a first cyclone section. The edge of the second gas equalization plate (409) is surrounded by a plurality of fifth gas holes (410). The fifth gas holes (410) and the first cyclone section are connected to the bottom of the first absorption section. The bottom of the first cyclone section is fixedly connected to and connected to a second cyclone section. The bottom of the second cyclone section is fixedly connected to the top of the atomizing nozzle (6). A plurality of atomizing spraying assemblies (5) are arranged around the outside of the first cyclone section.

2. The mechanically automated hydrogen fluoride absorption device according to claim 1, characterized in that: The pressurized air intake assembly includes a jet vacuum system (1), the outlet of which is connected to the inlet of the hydrogen fluoride absorption tower (2).

3. The mechanically automated hydrogen fluoride absorption device according to claim 1, characterized in that: The first cyclone section includes a cyclone wall (401), which is fixedly connected to the second gas equalization plate (409). The cyclone wall (401) penetrates the middle of the second gas equalization plate (409). The bottom of the cyclone wall (401) is fixedly connected to and communicates with the top of the second cyclone section. The middle of the cyclone wall (401) is provided with a plurality of first air holes (402) at equal intervals in the circumference. One side of the first air hole (402) is fixedly connected to an inclined first baffle (403). The angle between the first baffle (403) and the outer wall of the cyclone wall (401) is 45°. The bottom side wall of the cyclone wall (401) is provided with a plurality of second air holes (404) at equal intervals in the circumference. The first air holes (402) and the second air holes (404) communicate with the interior of the hydrogen fluoride absorption tower (2). A plurality of atomizing liquid spraying components (5) are arranged around the outside of the cyclone wall (401).

4. The mechanically automated hydrogen fluoride absorption device according to claim 3, characterized in that: The second cyclone section includes a first air equalization plate (408), the top of which is fixedly connected to the bottom of the cyclone wall (401). The first air equalization plate (408) has a plurality of third air holes (405) and fourth air holes (407) evenly spaced circumferentially. The plurality of fourth air holes (407) are located inside the cyclone wall (401) and communicate with the inner side of the cyclone wall (401). The air hole (405) is located on the outside of the cyclone wall (401). The third air hole (405) is connected to the outside of the cyclone wall (401). A second baffle (406) is fixedly connected to one side of the bottom of the third air hole (405). The high end of the second baffle (406) is located between the third air hole (405) and the fourth air hole (407). The top of the atomizing nozzle (6) is fixedly connected to the bottom center of the first air distribution plate (408).

5. The mechanically automated hydrogen fluoride absorption device according to claim 1, characterized in that: The first absorption section includes a packing material (3), which is filled in the middle of the hydrogen fluoride absorption tower (2). The packing material (3) is fluorinated gypsum filter material particles with a particle size of 4-6 mm. The bottom of the packing material (3) is connected to the top of the second gas equalization plate (409).

6. The mechanically automated hydrogen fluoride absorption device according to claim 1, characterized in that: The liquid collection assembly includes a by-product tank (7), which is fixedly connected to and communicates with the bottom of the hydrogen fluoride absorption tower (2).

7. The mechanically automated hydrogen fluoride absorption device according to claim 1, characterized in that: The secondary absorption assembly includes two exhaust gas purification towers (9) connected in sequence. The air inlet of the exhaust gas purification tower (9) located near the hydrogen fluoride absorption tower (2) is connected to the first connecting pipe (8). The air outlet of the exhaust gas purification tower (9) is connected to the air inlet of an air pump (13). The air outlet of the air pump (13) is connected to the air inlet of the other exhaust gas purification tower (9). The air inlet of the exhaust gas purification tower (9) is located below the side wall of the exhaust gas purification tower (9). The air outlet of the exhaust gas purification tower (9) is located above the side wall of the exhaust gas purification tower (9). An absorption section is provided between the air inlet and the air outlet of the exhaust gas purification tower (9).

8. The mechanically automated hydrogen fluoride absorption device according to claim 7, characterized in that: The absorption section includes a support plate (10), which is fixedly connected to the inner wall of the tail gas purification tower (9). An aeration head (11) is fixedly connected to the middle of the support plate (10). The top of the support plate (10) is filled with washing liquid (12). The air outlet of the aeration head (11) is located in the washing liquid (12), and the air inlet of the aeration head (11) is located on the side away from the washing liquid (12).

Images