CN210356662U

CN210356662U - Hydrogen fluoride gas purifier

Info

Publication number: CN210356662U
Application number: CN201921042593.2U
Authority: CN
Inventors: 于昌国; 肖飞; 彭国军; 王坤; 张强
Original assignee: Inner Mongolia Dongyue Jinfeng Fluorine Chemical Co Ltd
Current assignee: Inner Mongolia Dongyue Jinfeng Fluorine Chemical Co Ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-04-21
Anticipated expiration: 2029-07-05

Abstract

The utility model discloses a hydrogen fluoride gas purifier, including thick purifier, the air inlet of setting on thick purifier entry end, connect the gas pipeline on thick purifier exit end, a purifying box for handling hydrogen fluoride gas, the perforated plate that sets up in the inboard bottom of purifying box and is connected with gas pipeline through adapting unit, a plurality of exhaust holes of setting on the perforated plate, the pH valve detector of setting on the purifying box inside wall, an agitating unit for stirring liquid in the purifying box, the gas outlet of setting at the purifying box top, the setting is used for accelerating the gas acceleration room that the gas flow is used for at the gas outlet, the stoste joining device of setting on the purifying box lateral wall, and join the device with the stoste, agitating unit, the controller that pH valve detector and gas acceleration room are connected. The utility model discloses better purifying effect has been reached, the flue gas that makes the emission reaches the standard.

Description

Hydrogen fluoride gas purifier

Technical Field

The utility model belongs to the technical field of purifier and specifically relates to a hydrogen fluoride gas purifier is related to.

Background

Hydrogen fluoride is a binary compound consisting of fluorine and hydrogen, and is a colorless gas with pungent odor. Hydrogen fluoride is a weak acid, and hydrogen fluoride and its aqueous solution are toxic and can make skeleton and tooth deformed, and the hydrofluoric acid can be absorbed by mucous membrane, respiratory tract and gastrointestinal tract through skin, so that it can result in poisoning of human body.

The fluorine-containing mineral can generate hydrogen fluoride gas in the smelting production process, if the hydrogen fluoride gas is directly discharged, air can be polluted, and in order to protect the environment, people need to filter and purify the flue gas with the hydrogen fluoride, so that the flue gas reaches the emission standard. However, when the conventional purification device uses the purification liquid to absorb the hydrogen fluoride, the purification liquid and the hydrogen fluoride are not uniformly mixed, or the concentration of the purification liquid is too low, so that the purification effect is not ideal.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydrogen fluoride gas purifier solves current purifier and has the unsatisfactory problem of purifying effect.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a hydrogen fluoride gas body purifier, including thick purifier, the air inlet of setting on thick purifier entry end, connect the gas pipeline on thick purifier exit end, a purifying box for handling hydrogen fluoride gas body, the perforated plate that sets up in the inboard bottom of purifying box and is connected with gas pipeline through adapting unit, a plurality of exhaust holes of setting on the perforated plate, the pH valve detector of setting on the purifying box inside wall, an agitating unit for stirring liquid in the purifying box, the gas outlet of setting at the purifying box top, the setting is used for accelerating the gas acceleration room that the gas flows at the gas outlet, the stoste of setting on the purifying box lateral wall adds the device, and add the device with the stoste, agitating unit, the controller that pH valve detector and gas acceleration room are connected.

Further, the stirring device comprises a motor connected with the controller, a rotating shaft arranged in the purifying box and connected with an output shaft of the motor, and blades obliquely arranged on the rotating shaft.

Furthermore, the stoste adding device comprises a stoste inlet pipe which penetrates through the interior of the purification box, a purification stoste box which is connected with the stoste inlet pipe, and a valve which is arranged on the stoste inlet pipe and connected with the controller.

Further, coarse purification device is including the particulate matter deposit room that sets gradually and the scrubbing cylinder that is used for holding the sodium hydroxide, the entry end and the air inlet of particulate matter deposit room are connected, the exit end and the gas pipeline of scrubbing cylinder are connected.

Furthermore, a drain outlet is arranged at the bottom of the purifying box, and a control valve connected with the controller is arranged on the drain outlet.

Further, the perforated plate is circular, and the exhaust holes are uniformly distributed on the perforated plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the utility model discharges the flue gas through the exhaust holes, and because the perforated plate for installing the exhaust holes is positioned in the sodium hydroxide solution, the hydrogen fluoride in the flue gas can be fully contacted with the sodium hydroxide, and simultaneously, the stock solution is continuously stirred by the stirring device, so that the stock solution and the flue gas are uniformly mixed, the stock solution and the flue gas are fully reacted, a better purification effect is achieved, and finally, the flue gas after purification is discharged from the gas outlet; the utility model discloses set up gaseous room with higher speed on the gas outlet, can accelerate the circulation of air, the flue gas after avoiding purifying piles up on the upper portion of purifying box, improves purification efficiency.

(2) The utility model discloses before utilizing the purifying box to purify the flue gas that contains hydrogen fluoride, the particulate matter in the filtering flue gas in the particulate matter deposit room gets rid of most hydrogen fluoride in the flue gas through the chemical reaction of sodium hydroxide with hydrogen fluoride in the gas washing tank simultaneously, further improves purifying effect.

(3) The utility model discloses be provided with the pH valve detector inside the purifying box for detect the pH value of stoste, whether the managers of being convenient for monitors stoste pH valve up to standard, cross at the pH value and in time change the stoste when low, thereby improve the purifying effect of flue gas.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the structure of the multi-well plate of FIG. 1.

Wherein, the names corresponding to the reference numbers are:

1-an air inlet, 2-a crude purification device, 3-an air pipeline, 4-a purification box, 5-a motor, 6-a rotating shaft, 7-a blade, 8-a pH value detector, 9-an exhaust hole, 10-a porous plate, 11-a sewage discharge outlet, 12-a valve, 13-a stock solution inlet pipe, 14-a purified stock solution box and 15-an air outlet,

21-particle settling chamber, 22-gas washing tank.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.

Examples

As shown in the figures 1 and 2, the utility model discloses a hydrogen fluoride gas purification device, which comprises a coarse purification device 2, an air inlet 1 arranged on the inlet end of the coarse purification device 2, a gas pipeline 3 connected on the outlet end of the coarse purification device 2, a purification box 4 used for processing hydrogen fluoride gas, a perforated plate 10 which is arranged at the bottom of the inner side of the purification box 4 through a connecting part and is connected with the gas pipeline 3, a plurality of exhaust holes 9 arranged on the perforated plate 10, a pH value detector 8 arranged on the inner side wall of the purification box 4, a stirring device used for stirring liquid in the purification box 4, an air outlet 15 arranged at the top of the purification box 4, a gas acceleration chamber 16 arranged at the air outlet 15 and used for accelerating the gas flow, a stock solution adding device arranged on the side wall of the purification box 4, and a controller connected with the stock solution adding device, the stirring device, the pH value detector 8 and the gas acceleration chamber, the perforated plate 10 is circular, the exhaust holes 9 are uniformly distributed on the perforated plate 10, a sewage outlet 11 is arranged at the bottom of the purifying box 4, and a control valve connected with the controller is arranged on the sewage outlet 11.

The stirring device of the utility model comprises a motor 5 connected with a controller, a rotating shaft 6 arranged inside a purifying box 4 and connected with an output shaft of the motor 5, and a blade 7 obliquely arranged on the rotating shaft 6; the stoste adding device comprises a stoste inlet pipe 13 which penetrates through the interior of the purifying box 4, a purifying stoste box 14 which is connected with the stoste inlet pipe 13, and a valve 12 which is arranged on the stoste inlet pipe 13 and is connected with the controller.

The utility model discloses before utilizing purifying box 4 to purify the flue gas that contains hydrogen fluoride, set up coarse purification device 2, coarse purification device 2 is including the particulate matter settling chamber 21 that sets gradually and the washing gas jar 22 that is used for holding sodium hydroxide, and the particulate matter in the filtering flue gas utilizes the neutralization reaction of sodium hydroxide and hydrogen fluoride to get rid of most hydrogen fluoride in the flue gas simultaneously, the entry end and the air inlet 1 of particulate matter settling chamber 21 are connected, washing gas jar 22's exit end is connected with gas pipeline 3.

In the process of purifying the flue gas, a control valve on a sewage discharge port 11 is closed, a valve 12 on a raw liquid inlet pipe 13 is opened, the raw liquid in a purified raw liquid tank 14 is added into a purifying tank 4, the raw liquid in the embodiment is a sodium hydroxide solution, after a certain amount is reached, the valve 12 is closed, the flue gas treated by a rough purifying device 2 is introduced into a gas pipeline 3 and is finally discharged through an exhaust hole 9, and because a porous plate 10 provided with the exhaust hole 9 is positioned in the sodium hydroxide solution, hydrogen fluoride in the flue gas can be fully contacted with the sodium hydroxide, so that a better purifying effect is achieved; when purifying, controller control motor 5 starts, drives rotation axis 6 and rotates, and blade 7 stirs stoste constantly, makes stoste and flue gas misce bene, and both fully react, and finally, the flue gas after the purification is discharged by gas outlet 15, reaches flue gas emission standard.

The gas outlet 15 of the utility model is provided with the gas acceleration chamber 16, which can accelerate the circulation of air, avoid the purified flue gas from accumulating on the upper part of the purification box 4 and improve the purification efficiency; the utility model discloses pH valve detector 8 in the inside setting of purifying box 4 is used for detecting the pH value of stoste, and whether the managers of being convenient for monitor stoste pH valve up to standard, crosses at the pH value and in time changes the stoste when low to improve the purifying effect of flue gas.

The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the protection scope of the present invention, but all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention, the technical problems solved by the embodiment are still consistent with the present invention, and all should be included in the protection scope of the present invention.

Claims

1. The utility model provides a hydrogen fluoride gas purification device, which is characterized in that, including thick purifier (2), air inlet (1) of setting on thick purifier (2) entry end, gas pipeline (3) on thick purifier (2) exit end is connected, a purifying box (4) for handling hydrogen fluoride gas, perforated plate (10) that sets up in purifying box (4) inboard bottom and be connected with gas pipeline (3) through adapting unit, a plurality of exhaust holes (9) of setting on perforated plate (10), pH value detector (8) of setting on purifying box (4) inside wall, a agitating unit for stirring liquid in purifying box (4), gas outlet (15) of setting at purifying box (4) top, gas acceleration room (16) that is used for accelerating the gas flow sets up in gas outlet (15), the stoste joining device of setting on purifying box (4) lateral wall, and the controller is connected with the stock solution adding device, the stirring device, the pH value detector (8) and the gas acceleration chamber (16).

2. The hydrogen fluoride gas purification apparatus according to claim 1, wherein the stirring means comprises a motor (5) connected to the controller, a rotating shaft (6) provided inside the purification tank (4) and connected to an output shaft of the motor (5), and a blade (7) provided obliquely on the rotating shaft (6).

3. The apparatus for purifying hydrogen fluoride gas as claimed in claim 2, wherein said stock solution adding means comprises a stock solution inlet pipe (13) provided through the inside of the purification tank (4), a purified stock solution tank (14) connected to the stock solution inlet pipe (13), and a valve (12) provided on the stock solution inlet pipe (13) and connected to the controller.

4. The hydrogen fluoride gas purification device according to claim 3, wherein the crude purification device (2) comprises a particle settling chamber (21) and a scrubbing tank (22) for containing sodium hydroxide, which are arranged in sequence, the inlet end of the particle settling chamber (21) is connected with the gas inlet (1), and the outlet end of the scrubbing tank (22) is connected with the gas pipeline (3).

5. The hydrogen fluoride gas purification device as claimed in claim 4, wherein a drain outlet (11) is arranged at the bottom of the purification box (4), and a control valve connected with the controller is arranged on the drain outlet (11).

6. The hydrogen fluoride gas purification device according to claim 5, wherein the porous plate (10) is circular, and the exhaust holes (9) are uniformly distributed on the porous plate (10).