Hydrogen fluoride gas absorption device

Abstract

The utility model discloses a hydrogen fluoride gas absorption device, which comprises a box body, an exhaust pipe fixed on the side wall of the box body, and a gas inlet pipe fixedly inserted at the top of the box body, a rotating rod is rotatably inserted on the inner side wall of the box body, a rotating disc is fixedly connected on the rotating rod, the end part of the rotating disc is fixedly connected with a sealing disc, and the sealing disc is positioned in the gas inlet pipe. The sealing disc can rotate in the gas inlet pipe, a through opening is formed in the rotating disc, and when the through opening corresponds to the exhaust pipe in position, gas generated by reaction in the box body is exhausted. According to the utility model, the power assembly drives the driven gear to rotate, and the driven gear drives the rotating disc to rotate through the rotating rod, so that the through hole corresponds to the exhaust pipe in position, the purpose of intermittent exhaust is realized, and meanwhile, when the exhaust pipe is shielded by the rotating disc, the reaction time of hydrogen fluoride gas in the box body is prolonged, the hydrogen fluoride gas fully reacts with sodium hydroxide, and the purification effect is improved; the sealing disc at the other end of the rotating rod rotates in the air inlet pipe, and the intermittent air inlet purpose is achieved.

Description

Technical Field

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

[0002] In my country's enamel, steel, aluminum electrolysis, phosphate fertilizer, cement, bricks and tiles, glass and other industries that use fluorine-containing minerals as the main raw materials or auxiliary raw materials, during the smelting and production process, the fluorine element decomposes from the minerals to generate hydrogen fluoride gas. If the hydrogen fluoride gas is directly discharged, it will have a great impact on the environment and human body.

[0003] Many hydrogen fluoride-related enterprises will absorb hydrogen fluoride before discharging it. Hydrogen fluoride gas absorption usually uses alkaline solutions to neutralize the hydrogen fluoride in the gas. Commonly used absorbents include sodium hydroxide (NaOH) solution or sodium carbonate (Na2CO3) solution. These alkaline solutions react with hydrogen fluoride gas to generate water and corresponding salts, thereby converting harmful components in hydrogen fluoride gas into relatively safe compounds. The treated gas is discharged into the environment through the exhaust port.

[0004] However, the existing absorption device simply passes hydrogen fluoride gas into the sodium hydroxide solution, and the contact time with the solution is short, so the reaction is not sufficient and there is a residue problem. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a hydrogen fluoride gas absorption device, which solves the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above purpose, the utility model is implemented through the following technical solutions: a hydrogen fluoride gas absorption device, including a box body, an exhaust pipe fixed to the side wall of the box body, and an intake pipe fixedly inserted at the top of the box body, a rotating rod is rotatably inserted into the inner wall of the box body, a rotating rod is fixedly connected to a rotating disk, a sealing disk is fixedly connected to the end of the rotating disk, the sealing disk is located inside the intake pipe, the sealing disk can rotate inside the intake pipe, a through hole is opened on the turntable, and when the through hole corresponds to the position of the exhaust pipe, the gas generated by the reaction inside the box body is discharged.

[0009] Preferably, the other end of the rotating rod is located outside the box and is fixedly connected to a driven gear, and a power component for driving the driven gear to rotate is fixedly installed on the outer side wall of the box.

[0010] Preferably, the power assembly includes a rotating shaft rotatably inserted into the outer wall of the box body, a driving gear fixed on the rotating shaft, the driving gear is meshed with the driven gear, and a worm gear is fixedly connected to the end of the rotating shaft.

[0011] Preferably, the power assembly further comprises a motor fixedly mounted on the outer side wall of the box body, a worm is fixedly connected to an output end of the motor, and the worm is meshed with a worm wheel.

[0012] Preferably, a plurality of stirring rods are fixedly connected to the surface of the turntable to mix the liquid and promote the fluidity of the liquid.

[0013] Preferably, the size of the sealing disk matches the inner diameter of the air inlet pipe, the air inlet pipe is arranged close to the inner bottom wall of the box body, and there is a gap between the air inlet pipe and the inner bottom wall of the box body.

[0014] (III) Beneficial effects

[0015] The utility model provides a hydrogen fluoride gas absorption device, which has the following beneficial effects:

[0016] 1. In the utility model, the driven gear is driven to rotate by the power assembly, and the driven gear drives the turntable to rotate through the rotating rod, so that the port corresponds to the position of the exhaust pipe, and the purpose of intermittent exhaust is achieved. At the same time, when the turntable blocks the exhaust pipe, the reaction time of the hydrogen fluoride gas inside the box is increased, and it fully reacts with the sodium hydroxide to improve the purification effect; and the sealing disk at the other end of the rotating rod rotates inside the intake pipe, which also achieves the purpose of intermittent intake, avoiding excessive reaction of hydrogen fluoride gas and untimely treatment.

[0017] 2. In the utility model, the rotating turntable drives a plurality of stirring rods to rotate, and the stirring rods mix and stir the sodium hydroxide solution to promote the fluidity of the liquid, so that the hydrogen fluoride fully reacts with the sodium hydroxide solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is an external three-dimensional structural diagram of a hydrogen fluoride gas absorption device proposed by the utility model;

[0019] Figure 2 This is a front cross-sectional structural diagram of a hydrogen fluoride gas absorption device proposed by the utility model;

[0020] Figure 3 This is a side cross-sectional structural diagram of a hydrogen fluoride gas absorption device proposed by the utility model;

[0021] Figure 4 for Figure 1 Enlarged structural diagram at point A.

[0022] In the figure: 1, box body; 2, exhaust pipe; 3, intake pipe; 4, driven gear; 5, rotating rod; 6, turntable; 601, opening; 7, sealing plate; 8, stirring rod; 9, driving gear; 10, worm wheel; 11, worm; 12, motor; 13, rotating shaft. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figures 1 to 4 The utility model provides a technical solution: a hydrogen fluoride gas absorption device, comprising a box body 1, an exhaust pipe 2 fixed to the side wall of the box body 1, and an intake pipe 3 fixedly inserted at the top of the box body 1, a mixed gas containing hydrogen fluoride is introduced through the intake pipe 3, and the treated gas is discharged through the exhaust pipe 2; a rotating rod 5 is rotatably inserted into the inner wall of the box body 1, a rotating disk 6 is fixedly connected to the rotating rod 5, a sealing disk 7 is fixedly connected to the end of the rotating disk 6, the sealing disk 7 is located inside the intake pipe 3, the sealing disk 7 can rotate inside the intake pipe 3, a through hole 601 is opened on the rotating disk 6, and when the through hole 601 corresponds to the position of the exhaust pipe 2, the gas generated by the reaction inside the box body 1 is discharged.

[0025] The other end of the rotating rod 5 is located outside the box body 1 and is fixedly connected to the driven gear 4 . A power assembly for driving the driven gear 4 to rotate is fixedly installed on the outer side wall of the box body 1 .

[0026] The driven gear 4 is driven to rotate by the power assembly, and the driven gear 4 drives the turntable 6 to rotate through the rotating rod 5, so that the port 601 corresponds to the position of the exhaust pipe 2, and the purpose of intermittent exhaust is achieved. When the port 601 does not correspond to the position of the exhaust pipe 2, the turntable 6 blocks the exhaust pipe 2. At this time, the reaction time of the hydrogen fluoride gas inside the box 1 is increased, and it fully reacts with the sodium hydroxide solution to improve the purification effect; and the sealing disk 7 at the other end of the rotating rod 5 rotates inside the intake pipe 3, which also achieves the purpose of intermittent intake of the hydrogen fluoride mixed gas, avoids excessive reaction of the hydrogen fluoride gas, and avoids untimely treatment of the sodium hydroxide solution.

[0027] In this solution, the specific power assembly includes a rotating shaft 13 rotatably inserted into the outer wall of the box body 1, a driving gear 9 fixed on the rotating shaft 13, the driving gear 9 is meshed with the driven gear 4, and a worm gear 10 is fixedly connected to the end of the rotating shaft 13.

[0028] The power assembly further includes a motor 12 fixedly mounted on the outer wall of the housing 1 , the output end of the motor 12 is fixedly connected to a worm 11 , and the worm 11 is meshed with the worm wheel 10 .

[0029] The motor 12 is started to drive the worm 11 to rotate, the worm 11 drives the worm wheel 10 to rotate, the worm wheel 10 drives the driving gear 9 to rotate through the rotating shaft 13, and the driven gear 4 rotates accordingly.

[0030] A plurality of stirring rods 8 are fixedly connected to the surface of the turntable 6. The rotating turntable 6 drives the plurality of stirring rods 8 to rotate. The stirring rods 8 mix and stir the sodium hydroxide solution to promote the fluidity of the liquid, so that the hydrogen fluoride fully reacts with the sodium hydroxide solution.

[0031] The size of the sealing disk 7 matches the inner diameter of the air inlet pipe 3 . The air inlet pipe 3 is arranged close to the inner bottom wall of the box body 1 , and there is a gap between the air inlet pipe 3 and the inner bottom wall of the box body 1 .

[0032] 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. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A hydrogen fluoride gas absorption device, characterized in that: The invention comprises a box body (1), an exhaust pipe (2) fixed to the side wall of the box body (1), and an intake pipe (3) fixedly inserted at the top of the box body (1); a rotating rod (5) is rotatably inserted into the inner wall of the box body (1); a rotating disk (6) is fixedly connected to the rotating rod (5); a sealing disk (7) is fixedly connected to the end of the rotating disk (6); the sealing disk (7) is located inside the intake pipe (3); the sealing disk (7) can rotate inside the intake pipe (3); a through hole (601) is opened on the rotating disk (6); when the through hole (601) corresponds to the position of the exhaust pipe (2), the gas generated by the reaction inside the box body (1) is discharged.

2. A hydrogen fluoride gas absorption device according to claim 1, characterized in that: The other end of the rotating rod (5) is located outside the box body (1) and is fixedly connected to a driven gear (4); a power assembly for driving the driven gear (4) to rotate is fixedly mounted on the outer side wall of the box body (1).

3. A hydrogen fluoride gas absorption device according to claim 2, characterized in that: The power assembly comprises a rotating shaft (13) rotatably inserted into the outer wall of the box body (1), a driving gear (9) fixed on the rotating shaft (13), the driving gear (9) being meshed with the driven gear (4), and a worm gear (10) being fixedly connected to the end of the rotating shaft (13).

4. A hydrogen fluoride gas absorption device according to claim 3, characterized in that: The power assembly further comprises a motor (12) fixedly mounted on the outer wall of the box body (1), the output end of the motor (12) being fixedly connected to a worm (11), and the worm (11) being meshed with the worm wheel (10).

5. A hydrogen fluoride gas absorption device according to claim 1, characterized in that: A plurality of stirring rods (8) are fixedly connected to the surface of the turntable (6) to mix the liquid and promote the fluidity of the liquid.

6. A hydrogen fluoride gas absorption device according to claim 1, characterized in that: The size of the sealing disk (7) matches the inner diameter of the air intake pipe (3); the air intake pipe (3) is arranged close to the inner bottom wall of the box body (1); and there is a gap between the air intake pipe (3) and the inner bottom wall of the box body (1).

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