Hydrogen fluoride recovery device

Abstract

The utility model relates to the technical field of hydrogen fluoride recovery devices and discloses a hydrogen fluoride recovery device which comprises a purification kettle, supporting legs are fixedly connected to the bottom of an outer ring of the purification kettle, an air inlet pipe is fixedly connected to the bottom of the left side of the purification kettle, and an exhaust pipe is fixedly connected to the top of the right side of the purification kettle. A liquid inlet is fixedly connected to the top of the purification kettle, a liquid discharge pipe is fixedly connected to the bottom of the purification kettle, a liquid inlet mechanism is arranged at the top in the purification kettle, and a spraying mechanism is arranged below the liquid inlet mechanism. According to the hydrogen fluoride recovery device, water entering through the liquid inlet pipe is divided into three parts through the arranged liquid inlet mechanism and the flow dividing pipe, the three parts of water flow enter the supporting sleeve shell in the same direction relative to the rotating blades, the rotating blades push the rotating drum to rotate, the rotating speed of the rotating drum is increased, and a spraying head can automatically rotate in the spraying process without additional power; the spraying coverage area is increased, the contact area of moisture and flue gas containing hydrogen fluoride is increased, and the filtering effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen fluoride recovery devices, in particular to a hydrogen fluoride recovery device. Background Art

[0002] Hydrogen fluoride is a binary compound composed of fluorine and hydrogen. It is a colorless gas with a pungent odor. Hydrogen fluoride is a monobasic weak acid. Hydrogen fluoride and its aqueous solution are toxic and can easily cause bone and tooth deformities. Hydrofluoric acid can penetrate the skin and be absorbed by the mucous membrane, respiratory tract and gastrointestinal tract. Emergency treatment should be carried out immediately after poisoning, and the patient should be sent to a doctor. It is mixed with antimony pentafluoride to form fluoroantimonic acid. The main components of most industrial fluorine-containing gases are hydrogen fluoride and silicon tetrafluoride. Due to the characteristics of these two gases being easily soluble in water and certain solutions, water, hydrofluoric acid and fluosilicic acid solutions or sodium carbonate, ammonium hydroxide, ammonium fluoride, calcium hydroxide, sodium chloride, potassium sulfate and other solutions are usually used as absorbents, and fluoride is purified and recovered through several stages of absorption.

[0003] When the existing hydrogen fluoride recovery device is in use, the hydrogen fluoride is recovered by contacting the flue gas with water through a spray pipe. However, when the spray structure provided in the existing hydrogen fluoride recovery device is in use, the position is fixed, the spray range is fixed, there are dead angles, and the device cannot completely contact the flue gas, resulting in low recovery efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a hydrogen fluoride recovery device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydrogen fluoride recovery device, comprising a purification kettle, wherein the bottom of the outer ring of the purification kettle is fixedly connected to a support leg, the bottom of the left side of the purification kettle is fixedly connected to an air inlet pipe, the top of the right side of the purification kettle is fixedly connected to an exhaust pipe, the top of the purification kettle is fixedly connected to a liquid inlet, the bottom of the purification kettle is fixedly connected to a liquid drain pipe, a liquid inlet mechanism is arranged at the top of the purification kettle, and a spray mechanism is arranged below the liquid inlet mechanism.

[0006] The liquid inlet mechanism comprises a supporting component and a liquid inlet component. The supporting component is arranged at the top of the purification kettle, and the liquid inlet component is arranged above the supporting component.

[0007] The spray mechanism includes a rotation component, a liquid separation component and a reinforcement component. The rotation component is arranged at the bottom of the support component, the liquid separation component is arranged at the bottom of the rotation component, and the reinforcement component is arranged outside the reinforcement component.

[0008] Preferably, the support assembly comprises a support shell, the support shell is arranged at the top of the purification kettle, the outer side of the support shell is fixedly connected with a fixed arm, and the fixed arm is fixedly connected to the top of the inner ring of the purification kettle.

[0009] Preferably, the liquid inlet assembly includes a liquid inlet pipe, which is sleeved on the inner circle of the liquid inlet port, a liquid separation cavity is fixedly connected to the bottom of the liquid inlet pipe, a diversion pipe is fixedly connected to the outer circle of the liquid separation cavity, and the diversion pipe is fixedly connected to the outside of the support shell.

[0010] Preferably, the self-rotating component includes a rotating drum, which is rotatably connected to the bottom of the supporting sleeve, the outer ring of the rotating drum is fixedly connected with rotating blades, the outer ring of the rotating drum is provided with empty grooves between the rotating blades, the top of the rotating drum is rotatably connected with a sealing ring, and the sealing ring is fixedly connected to the top of the supporting sleeve.

[0011] Preferably, the angle at which the rotating blades are fixed to the outer ring of the drum corresponds to the angle of the diverter tube, and the diverter tube and the rotating blades are aligned at narrow angles.

[0012] Preferably, the liquid separation component comprises a convex tube, the convex tube is fixedly connected to the bottom of the drum, the bottom of the outer ring of the convex tube is fixedly connected to a liquid separation tube, and the bottom of the liquid separation tube is fixedly connected to a spray head.

[0013] Preferably, the reinforcement assembly comprises a fixed tube, the fixed tube is sleeved on the outer ring of the liquid dispensing tube, and the outer ring of the fixed tube is fixedly connected to a fixing frame.

[0014] Compared with the prior art, the utility model provides a hydrogen fluoride recovery device, which has the following beneficial effects:

[0015] 1. The hydrogen fluoride recovery device, through the liquid inlet mechanism, the diverter pipe divides the water entering through the liquid inlet pipe into three parts, so that the three parts of water flow enter the support casing in the same direction relative to the rotating blades, and the rotating drum is driven to rotate by the rotating blades, thereby increasing the rotation rate of the rotating drum. The spray head can rotate automatically during the spraying process without additional power, thereby increasing the spray coverage area.

[0016] 2. The hydrogen fluoride recovery device has a liquid separation mechanism, and the angles of the rotating blades and the diverter pipe are relative, so that the water entering the support casing through the diverter pipe can push the rotating blades to drive the rotating drum to rotate, so that the spray head increases the spray range of water droplets by rotating during the spraying process, increases the contact area between water and flue gas containing hydrogen fluoride, and improves the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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 labor:

[0018] Figure 1It is a front schematic diagram of the utility model;

[0019] Figure 2 This is a front sectional view of the utility model;

[0020] Figure 3 It is a cross-sectional view of the liquid inlet mechanism and the liquid dispensing assembly;

[0021] Figure 4 It is the exploded view of the support assembly and the liquid inlet assembly;

[0022] Figure 5 It is a partial structural cross-sectional view of the spray mechanism.

[0023] In the figure: 1. liquid inlet mechanism; 11. support assembly; 1101. support sleeve; 1102. fixed arm; 12. liquid inlet assembly; 1201. liquid inlet pipe; 1202. liquid separation chamber; 1203. diversion pipe; 2. spray mechanism; 21. rotation assembly; 2101. rotating drum; 2102. rotating blades; 2103. empty slot; 2104. sealing ring; 22. liquid separation assembly; 2201. convex pipe; 2202. liquid separation pipe; 2203. spray head; 23. reinforcement assembly; 2301. fixed drum; 2302. fixed frame; 3. purification kettle; 31. air inlet pipe; 32. exhaust pipe; 33. liquid inlet; 34. liquid discharge pipe; 4. support leg. DETAILED DESCRIPTION

[0024] 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.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The utility model provides a technical solution:

[0027] Embodiment 1

[0028] Combination Figures 1 to 4A hydrogen fluoride recovery device comprises a purification kettle 3, a support leg 4 is fixedly connected to the bottom of the outer ring of the purification kettle 3, an air inlet pipe 31 is fixedly connected to the bottom of the left side of the purification kettle 3, an exhaust pipe 32 is fixedly connected to the top of the right side of the purification kettle 3, a liquid inlet 33 is fixedly connected to the top of the purification kettle 3, a liquid discharge pipe 34 is fixedly connected to the bottom of the purification kettle 3, a liquid inlet mechanism 1 is arranged at the top of the purification kettle 3, and a spray mechanism 2 is arranged below the liquid inlet mechanism 1.

[0029] The liquid inlet mechanism 1 comprises a supporting assembly 11 and a liquid inlet assembly 12 . The supporting assembly 11 is arranged at the top of the purification kettle 3 , and the liquid inlet assembly 12 is arranged above the supporting assembly 11 .

[0030] The support assembly 11 includes a support shell 1101, which is arranged at the top of the purification kettle 3. A fixed arm 1102 is fixedly connected to the outside of the support shell 1101. The fixed arm 1102 is fixedly connected to the top of the inner circle of the purification kettle 3. The liquid inlet assembly 12 includes a liquid inlet pipe 1201, which is sleeved on the inner circle of the liquid inlet port 33. A liquid separation chamber 1202 is fixedly connected to the bottom of the liquid inlet pipe 1201. A diversion pipe 1203 is fixedly connected to the outer circle of the liquid separation chamber 1202. The diversion pipe 1203 is fixedly connected to the outside of the support shell 1101.

[0031] Furthermore: the diversion pipe 1203 divides the water entering through the liquid inlet pipe 1201 into three parts, so that the three parts of water flow enter the support shell 1101 in the same direction relative to the rotating blades 2102, and the rotating drum 2101 is driven to rotate by the rotating blades 2102, thereby increasing the rotation rate of the rotating drum 2101. Without additional power, the spray head 2203 can rotate automatically during the spraying process, thereby increasing the spray coverage area.

[0032] Embodiment 2

[0033] See also Figures 1 to 5 On the basis of Example 1, it is further obtained that the spray mechanism 2 includes a rotation component 21, a liquid separation component 22 and a reinforcement component 23, the rotation component 21 is arranged at the bottom of the support component 11, the liquid separation component 22 is arranged at the bottom of the rotation component 21, and the reinforcement component 23 is arranged on the outside of the reinforcement component 23.

[0034] The self-rotating assembly 21 includes a rotating drum 2101, which is rotatably connected to the bottom of the supporting casing 1101, and the outer ring of the rotating drum 2101 is fixedly connected to the rotating blades 2102, and the outer ring of the rotating drum 2101 is provided with an empty groove 2103 between the rotating blades 2102, and the top of the rotating drum 2101 is rotatably connected to the sealing ring 2104, and the sealing ring 2104 is fixedly connected to the top of the supporting casing 1101, and the rotating blades 2102 are fixed at an angle between the outer ring of the rotating drum 2101 and the diverter pipe 1203. The diverter pipe 1203 is aligned with the rotating blade 2102 at a narrow angle, and the liquid separation component 22 includes a convex tube 2201, which is fixedly connected to the bottom of the rotating drum 2101, and the bottom of the outer ring of the convex tube 2201 is fixedly connected to the liquid separation pipe 2202, and the bottom of the liquid separation pipe 2202 is fixedly connected to the spray head 2203, and the reinforcement component 23 includes a fixed tube 2301, which is sleeved on the outer ring of the liquid separation pipe 2202, and the outer ring of the fixed tube 2301 is fixedly connected to the fixed frame 2302.

[0035] Furthermore, the angles of the rotor blades 2102 and the diverter pipe 1203 are opposite to each other, so that the water entering the support casing 1101 through the diverter pipe 1203 can push the rotor blades 2102 to drive the drum 2101 to rotate, so that the spray head 2203 increases the spray range of water droplets by rotating during the spraying process, increases the contact area between water and the flue gas containing hydrogen fluoride, and improves the filtering effect.

[0036] During actual operation, when this device is used, the flue gas enters the bottom of the purification kettle 3 through the air inlet pipe 31 and flows upward, the water enters the liquid separation chamber 1202 through the liquid inlet pipe 1201 and is diverted to the diversion pipe 1203, and the water entering the diversion pipe 1203 enters the support shell 1101 in equal amounts to push the rotor 2102 to drive the drum 2101 to rotate, and then enters the drum 2101 through the empty groove 2103 and is diverted to the liquid separation pipe 2202 through the convex pipe 2201, and finally the spraying work is completed through the spray head 2203. During the spraying process, the spray head 2203 rotates by following the rotation of the drum 2101, so that the sprayed water is scattered in the purification kettle 3, increasing the contact between the sprayed water and the flue gas in the purification kettle 3, and finally the flue gas is discharged through the exhaust pipe 32 into another air inlet pipe 31 and the purification kettle 3 to repeat the filtration of the flue gas.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A hydrogen fluoride recovery device, comprising a purification kettle (3), characterized in that: The outer bottom of the purification kettle (3) is fixedly connected to a support leg (4); the left bottom of the purification kettle (3) is fixedly connected to an air inlet pipe (31); the right top of the purification kettle (3) is fixedly connected to an exhaust pipe (32); the top of the purification kettle (3) is fixedly connected to a liquid inlet (33); the bottom of the purification kettle (3) is fixedly connected to a liquid discharge pipe (34); a liquid inlet mechanism (1) is provided at the top of the purification kettle (3); and a spray mechanism (2) is provided below the liquid inlet mechanism (1); The liquid inlet mechanism (1) comprises a support component (11) and a liquid inlet component (12), wherein the support component (11) is arranged at the top of the purification kettle (3), and the liquid inlet component (12) is arranged above the support component (11); The spray mechanism (2) comprises a self-rotating component (21), a liquid separation component (22) and a reinforcement component (23); the self-rotating component (21) is arranged inside the bottom of the supporting component (11); the liquid separation component (22) is arranged at the bottom of the self-rotating component (21); and the reinforcement component (23) is arranged outside the reinforcement component (23).

2. A hydrogen fluoride recovery device according to claim 1, characterized in that: The support assembly (11) comprises a support casing (1101), wherein the support casing (1101) is arranged at the top of the purification kettle (3), and a fixed arm (1102) is fixedly connected to the outside of the support casing (1101), and the fixed arm (1102) is fixedly connected to the top of the inner ring of the purification kettle (3).

3. A hydrogen fluoride recovery device according to claim 1, characterized in that: The liquid inlet assembly (12) comprises a liquid inlet pipe (1201), the liquid inlet pipe (1201) is sleeved on the inner circle of the liquid inlet port (33), the bottom of the liquid inlet pipe (1201) is fixedly connected to a liquid separation chamber (1202), the outer circle of the liquid separation chamber (1202) is fixedly connected to a flow distribution pipe (1203), and the flow distribution pipe (1203) is fixedly connected to the outside of the support casing (1101).

4. A hydrogen fluoride recovery device according to claim 1, characterized in that: The self-rotating assembly (21) comprises a rotating drum (2101), wherein the rotating drum (2101) is rotatably connected to the bottom of a supporting casing (1101), the outer ring of the rotating drum (2101) is fixedly connected to rotating blades (2102), the outer ring of the rotating drum (2101) is provided with empty grooves (2103) located between the rotating blades (2102), and the top of the rotating drum (2101) is rotatably connected to a sealing ring (2104), and the sealing ring (2104) is fixedly connected to the top of the supporting casing (1101).

5. A hydrogen fluoride recovery device according to claim 4, characterized in that: The angle at which the rotating blade (2102) is fixed to the outer ring of the rotating drum (2101) corresponds to the angle of the diverter tube (1203), and the diverter tube (1203) is aligned with the rotating blade (2102) at a narrow angle.

6. A hydrogen fluoride recovery device according to claim 1, characterized in that: The liquid separation component (22) comprises a convex tube (2201), wherein the convex tube (2201) is fixedly connected to the bottom of the rotating drum (2101), a liquid separation tube (2202) is fixedly connected to the bottom of the outer ring of the convex tube (2201), and a spray head (2203) is fixedly connected to the bottom of the liquid separation tube (2202).

7. A hydrogen fluoride recovery device according to claim 1, characterized in that: The reinforcement component (23) comprises a fixed cylinder (2301), wherein the fixed cylinder (2301) is sleeved on the outer ring of the liquid dispensing tube (2202), and the outer ring of the fixed cylinder (2301) is fixedly connected to a fixed frame (2302).

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