A spray type hydrofluoric acid absorption tower

Abstract

The utility model belongs to the technical field of chemical equipment, specifically a spray-type hydrofluoric acid absorption tower, including a tower shell, a first liquid inlet pipe is fixedly installed on one side of the top of the inner wall of the tower shell, a first spray head is fixedly installed on one end of the first liquid inlet pipe, a positioning seat and an assembly seat are fixedly installed on the inner wall of the tower shell from top to bottom, a plurality of support rods are fixedly installed on the inner side of the positioning seat, an air guide pipe is fixedly installed on one end of the support rod, a gas collecting hood is fixedly installed on the bottom of the air guide pipe, a water storage cavity is opened inside the assembly seat, and a plurality of second spray heads are fixedly installed on the inner side of the assembly seat. Through the structural design of the first liquid inlet pipe, the first spray head, the air guide pipe, the gas collecting hood, and the second spray head, the function of increasing the contact time between hydrofluoric acid and waste gas is realized, so that the waste gas can be purified in stages, so that the pollutants in the waste gas have more opportunities to be purified, thereby improving the purification efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a spray-type hydrofluoric acid absorption tower. Background Art

[0002] The spray absorption tower is a device that achieves air purification by spraying. The working principle of the spray tower is to utilize the contact between gas and spray liquid to transfer the pollutants in the gas to be treated into the liquid, thereby achieving the purpose of exhaust gas purification.

[0003] For example, a spray-type absorption tower with publication number CN220214450U comprises: an absorption tower body, an air inlet head is fixedly arranged on the absorption tower body, a hole body 1 is opened on the absorption tower body, a liquid inlet pipe is slidably contacted in the hole body 1, a connector is fixedly arranged at the end of the liquid inlet pipe, and a plurality of spray heads are fixedly arranged on the connector; a treatment component, the treatment component is arranged on the absorption tower body and the liquid inlet pipe, the treatment component comprises a support frame, a rotating head, an air outlet head, a power motor, a power shaft, a bevel gear 1, a bevel gear 2, a connecting rod, a spring and a cam, the support frame is fixedly installed in the absorption tower body, the rotating head is rotatably installed on the support frame, the air outlet head is fixedly installed on the rotating head, and the power motor is fixedly installed on the absorption tower body. The utility model has the following advantages and effects: it can make the treatment liquid fully contact with the waste gas, thereby improving the effect of waste gas treatment.

[0004] However, based on the working principle proposed in the above patent, the applicant believes that when the above device purifies the waste gas, due to the rapid rising speed of the gas, the single-layer spraying method leads to a short contact time of the treatment liquid, which may cause incomplete purification of the waste gas.

[0005] Therefore, a spray type hydrofluoric acid absorption tower is proposed to address the above problems. Utility Model Content

[0006] In order to make up for the deficiency of the prior art, the single-layer spraying may lead to the problem of incomplete essence, the utility model provides a spraying hydrofluoric acid absorption tower.

[0007] The utility model adopts the following technical solution to solve the technical problem: a spray-type hydrofluoric acid absorption tower, comprising a tower shell, a first liquid inlet pipe is fixedly installed on one side of the top of the inner wall of the tower shell, a first spray head is fixedly installed on one end of the first liquid inlet pipe, a positioning seat and an assembly seat are fixedly installed on the inner wall of the tower shell from top to bottom in sequence, a plurality of support rods are fixedly installed on the inner side of the positioning seat, an air guide pipe is fixedly installed on one end of the support rod, a gas collecting hood is fixedly installed on the bottom of the air guide pipe, a water storage chamber is opened inside the assembly seat, and a plurality of second spray heads are fixedly installed on the inner side of the assembly seat.

[0008] Preferably, a plurality of connecting rods are fixedly mounted on the bottom of the inner wall of the tower shell, and an elliptical air guide cover is fixedly mounted on one end of the connecting rods.

[0009] Preferably, an air inlet pipe is fixedly mounted on one side of the bottom of the tower shell surface, and a diffusion cover is fixedly mounted on one end of the air inlet pipe.

[0010] Preferably, an exhaust pipe is fixedly installed on the top of the tower shell, and a reflux pipe is fixedly installed on the bottom of the tower shell.

[0011] Preferably, a base is fixedly mounted on the bottom of the tower shell, and a liquid storage tank is fixedly mounted on the top of the inner wall of the base.

[0012] Preferably, a support plate is fixedly mounted on one side of the base, a booster pump is fixedly mounted on the top of the support plate, and a liquid extraction tube is fixedly mounted on one end of the booster pump.

[0013] Preferably, a liquid guide tube is fixedly mounted on the top of the booster pump, a three-way joint is fixedly mounted on one end of the liquid guide tube, and a second liquid inlet pipe is fixed on one side of the three-way joint.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model realizes the function of increasing the contact time between hydrofluoric acid and exhaust gas through the structural design of the first liquid inlet pipe, the first spray head, the air guide pipe, the air collecting hood and the second spray head, thereby the exhaust gas can be purified in stages, so that the pollutants in the exhaust gas have more opportunities to be purified, thereby improving the purification efficiency, and then ensuring the full contact between the exhaust gas and the hydrofluoric acid, avoiding the leakage of the exhaust gas, and improving the consistency and stability of the purification effect. In summary, the problem that single-layer spraying may lead to incomplete purification is solved.

[0016] 2. The utility model facilitates the conversion of high-speed jet formed when the exhaust gas is released into low-speed diffusion by setting a diffusion cover, so that the exhaust gas is more evenly distributed inside the tower shell, thereby ensuring that the exhaust gas can fully contact with hydrofluoric acid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0019] Figure 2 This is a bottom-up three-dimensional structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of a three-dimensional cross-sectional structure of a tower shell of the utility model;

[0021] Figure 4 It is a schematic diagram of the overall planar cross-sectional structure of the utility model.

[0022] In the figure: 1. tower shell; 2. first liquid inlet pipe; 3. first spray head; 4. positioning seat; 5. assembly seat; 6. support rod; 7. air guide pipe; 8. air collecting cover; 9. water storage chamber; 10. second spray head; 11. connecting rod; 12. elliptical guide cover; 13. air inlet pipe; 14. diffusion cover; 15. exhaust pipe; 16. return pipe; 17. base; 18. liquid storage tank; 19. support plate; 20. booster pump; 21. liquid extraction pipe; 22. liquid guide pipe; 23. three-way joint; 24. second liquid inlet pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The following is combined with Figure 1-4 To further explain this application in detail,

[0025] The embodiment of the present application discloses a spray-type hydrofluoric acid absorption tower, comprising a tower shell 1, a first liquid inlet pipe 2 is fixedly installed on one side of the top of the inner wall of the tower shell 1, a first spray head 3 is fixedly installed on one end of the first liquid inlet pipe 2, a positioning seat 4 and an assembly seat 5 are fixedly installed on the inner wall of the tower shell 1 from top to bottom, a plurality of support rods 6 are fixedly installed on the inner side of the positioning seat 4, an air guide pipe 7 is fixedly installed on one end of the support rod 6, a gas collecting hood 8 is fixedly installed on the bottom of the air guide pipe 7, a water storage chamber 9 is opened inside the assembly seat 5, and a plurality of second spray heads 10 are fixedly installed on the inner side of the assembly seat 5.

[0026] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4Through the structural design of the first liquid inlet pipe 2, the first spray head 3, the air guide pipe 7, the gas collecting hood 8, and the second spray head 10, the function of increasing the contact time between hydrofluoric acid and the exhaust gas is achieved, so that the exhaust gas can be purified in stages, so that the pollutants in the exhaust gas have more opportunities to be purified, thereby improving the purification efficiency, and then ensuring sufficient contact between the exhaust gas and the hydrofluoric acid, avoiding the leakage of the exhaust gas, and improving the consistency and stability of the purification effect.

[0027] A plurality of connecting rods 11 are fixedly mounted on the bottom of the inner wall of the tower shell 1 , and an elliptical air guide cover 12 is fixedly mounted on one end of the connecting rod 11 .

[0028] Reference Figure 3 and Figure 4 The connecting rod 11 is used to provide support for the elliptical air guide cover 12, thereby ensuring the stability of the elliptical air guide cover 12. The structural design of the elliptical air guide cover 12 realizes the function of diverting hydrofluoric acid, thereby preventing hydrofluoric acid from flowing into the air inlet pipe 13, thereby ensuring the safety of the device.

[0029] An air inlet pipe 13 is fixedly mounted on one side of the bottom surface of the tower shell 1 , and a diffusion cover 14 is fixedly mounted on one end of the air inlet pipe 13 .

[0030] Reference Figure 1 , Figure 3 , Figure 4 The exhaust gas is guided into the tower shell 1 through the air inlet pipe 13, and the high-speed jet formed when the exhaust gas is released is converted into low-speed diffusion through the diffusion cover 14, so that the exhaust gas is more evenly distributed in the tower shell 1, thereby ensuring that the exhaust gas can fully contact with the hydrofluoric acid.

[0031] An exhaust pipe 15 is fixedly installed on the top of the tower shell 1 , and a return pipe 16 is fixedly installed on the bottom of the tower shell 1 .

[0032] Reference Figure 1 and Figure 4 The purified gas is conveniently guided out of the tower shell 1 through the exhaust pipe 15, and the used hydrofluoric acid is conveniently received through the reflux pipe 16, and the hydrofluoric acid is guided back to the liquid storage tank 18, so that it is convenient to reuse it, forming a recycling system.

[0033] A base 17 is fixedly mounted on the bottom of the tower shell 1 , and a liquid storage tank 18 is fixedly mounted on the top of the inner wall of the base 17 .

[0034] Reference Figure 2 and Figure 4 The base 17 provides stable support for the tower shell 1, and the liquid storage tank 18 carries liquid hydrofluoric acid and limits its position, thereby preventing the diffusion of hydrofluoric acid from affecting the surrounding environment.

[0035] A support plate 19 is fixedly mounted on one side of the base 17 , a booster pump 20 is fixedly mounted on the top of the support plate 19 , and a liquid extraction pipe 21 is fixedly mounted on one end of the booster pump 20 .

[0036] Reference Figure 2 and Figure 4 The booster pump 20 is used to boost the pressure of the liquid hydrofluoric acid, thereby ensuring that the liquid hydrofluoric acid is delivered to the spraying area with sufficient pressure.

[0037] A liquid guide tube 22 is fixedly installed on the top of the booster pump 20 , a three-way joint 23 is fixedly installed on one end of the liquid guide tube 22 , and a second liquid inlet pipe 24 is fixed on one side of the three-way joint 23 .

[0038] Reference Figure 2 and Figure 4 The three-way joint 23 facilitates the diversion of the liquid hydrofluoric acid, thereby ensuring that the liquid hydrofluoric acid can be transported to the first spray head 3 and the second spray head 10.

[0039] Working principle: When using this device, the exhaust gas is introduced through the air inlet pipe 13, and the flow speed of the exhaust gas is reduced through the diffusion cover 14. At the same time, the booster pump 20 absorbs liquid hydrofluoric acid through the liquid extraction pipe 21, and the liquid hydrofluoric acid is pressurized by the booster pump 20. The pressurized liquid hydrofluoric acid reaches the three-way joint 23 through the liquid guide pipe 22, and is guided to the first liquid inlet pipe 2 and the second liquid inlet pipe 24 through the three-way joint 23. After being sprayed through the first spray head 3 and the second spray head 10, the exhaust gas enters the inner cavity of the tower shell 1, and rises through the gap between the elliptical guide cover 12 and the inner part of the tower shell 1. The second spray head 10 sprays liquid hydrofluoric acid to preliminarily purify the exhaust gas. The preliminarily purified exhaust gas continues to rise under the impetus of subsequent exhaust gas and is limited by the gas collecting hood 8. The gas continues to rise through the air guide pipe 7. During the rising period, the first spray head 3 sprays liquid hydrofluoric acid to purify it for the second time. The purified gas is finally released from the tower shell 1 through the exhaust pipe 15. After the liquid hydrofluoric acid released by the first spray head 3 descends through the air guide pipe 7, it is guided by the elliptical guide cover 12 to reach the bottom of the inner cavity of the tower shell 1 and flows into the liquid storage tank 18 through the reflux pipe 16.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A spray type hydrofluoric acid absorption tower, characterized in that: The tower shell (1) comprises a tower shell (1); a first liquid inlet pipe (2) is fixedly mounted on one side of the top of the inner wall of the tower shell (1); a first spray head (3) is fixedly mounted on one end of the first liquid inlet pipe (2); a positioning seat (4) and an assembly seat (5) are fixedly mounted on the inner wall of the tower shell (1) in sequence from top to bottom; a plurality of support rods (6) are fixedly mounted on the inner side of the positioning seat (4); an air guide pipe (7) is fixedly mounted on one end of the support rod (6); a gas collecting hood (8) is fixedly mounted on the bottom of the air guide pipe (7); a water storage chamber (9) is provided inside the assembly seat (5); and a plurality of second spray heads (10) are fixedly mounted on the inner side of the assembly seat (5).

2. A spray type hydrofluoric acid absorption tower according to claim 1, characterized in that: A plurality of connecting rods (11) are fixedly mounted on the bottom of the inner wall of the tower shell (1), and an elliptical flow guide cover (12) is fixedly mounted on one end of the connecting rod (11).

3. A spray type hydrofluoric acid absorption tower according to claim 1, characterized in that: An air intake pipe (13) is fixedly mounted on one side of the bottom surface of the tower shell (1), and a diffusion cover (14) is fixedly mounted on one end of the air intake pipe (13).

4. A spray type hydrofluoric acid absorption tower according to claim 1, characterized in that: An exhaust pipe (15) is fixedly installed on the top of the tower shell (1), and a return pipe (16) is fixedly installed on the bottom of the tower shell (1).

5. A spray-type hydrofluoric acid absorption tower according to claim 1, characterized in that: A base (17) is fixedly mounted on the bottom of the tower shell (1), and a liquid storage tank (18) is fixedly mounted on the top of the inner wall of the base (17).

6. A spray-type hydrofluoric acid absorption tower according to claim 5, characterized in that: A support plate (19) is fixedly mounted on one side of the base (17), a booster pump (20) is fixedly mounted on the top of the support plate (19), and a liquid extraction pipe (21) is fixedly mounted on one end of the booster pump (20).

7. A spray-type hydrofluoric acid absorption tower according to claim 6, characterized in that: A liquid guide tube (22) is fixedly mounted on the top of the booster pump (20), a three-way joint (23) is fixedly mounted on one end of the liquid guide tube (22), and a second liquid inlet pipe (24) is fixedly mounted on one side of the three-way joint (23).

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