Waste gas treatment device for chemical safety

Abstract

The invention discloses a waste gas treatment device for chemical safety, and relates to the technical field of waste gas treatment, the waste gas treatment device comprises a purifier, the bottom of the purifier is provided with a waste liquid collection assembly, the outer surface of the purifier is provided with a waste gas treatment assembly, and the purifier is internally provided with a retreatment assembly. When the waste gas treatment device is used, the liquid pump is started, the purification liquid in the liquid storage tank is pumped into the liquid outlet pipe and the connecting pipe through the liquid pumping pipe, the atomized purification liquid is sprayed out through the atomization nozzle and makes full contact with waste gas flowing upwards in an inclined mode, and the waste gas treatment effect is achieved. Waste liquid downwards drips onto the conical liquid collecting cover under the action of gravity, flows into the conical liquid collecting cover through the liquid collecting hole and the liquid inlet hole and is discharged to the outside through the liquid discharging pipe, and under the action of the waste liquid collecting assembly, the situation that the waste liquid drips into the purification liquid below, the purification liquid is polluted, and the subsequent waste gas treatment effect is affected is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, in particular to a waste gas treatment device for chemical safety. Background Art

[0002] Waste gas treatment refers to the process of using physical, chemical, biological and other technical methods to separate, transform, decompose or recycle pollutants in waste gas generated in industrial production, life and other processes, so that it can meet the national or local emission standards before being discharged into the atmosphere. Chemical waste gas usually has the characteristics of large emission volume, a wide variety of pollutants, complex composition, strong toxicity, pungent odor, flammability and explosion, etc., which is harmful to the environment and human health. If it is discharged directly into the atmosphere without treatment, it will cause serious air pollution, leading to environmental problems such as acid rain, photochemical smog, and ozone layer depletion, affecting ecological balance and climate change.

[0003] In the prior art, such as the Chinese patent publication number: CN219186253U, a waste gas treatment device for chemical safety is disclosed, including a base, a heat exchange box and a purification box, the heat exchange box is provided with a heat exchange mechanism inside, the purification box is provided with a purification mechanism inside, the heat exchange mechanism includes a first filter fixedly connected to the inside of the heat exchange box, the heat exchange tube is fixedly connected to the inside of the heat exchange box, the outside of the heat exchange box is fixedly connected with a first connecting pipe, the end of the first connecting pipe away from the heat exchange box is fixedly connected with a detection box, the inside of the detection box is fixedly installed with a temperature sensor, and the top of the detection box is fixedly connected with a recovery pipe. The waste gas is preliminarily filtered through the first filter, the heat of the waste gas is absorbed by the heat exchange tube, the waste gas enters the inside of the purification box through the second connecting pipe, the purification liquid is atomized by the atomizing nozzle, the waste gas is purified, and then secondary filtration is performed through the second filter.

[0004] In the prior art, during the use of chemical safety waste gas treatment devices, the waste gas is purified by spraying atomized purification liquid, and then the purified gas is discharged through a fan. However, part of the atomized waste liquid will flow downward along the inner wall of the purification box into the purification liquid at the bottom, causing pollution of the purification liquid, reducing the purification liquid's absorption and purification capacity for the waste gas, and affecting the waste gas treatment effect.

[0005] Therefore, we propose a waste gas treatment device for chemical safety in order to solve the problems raised in the above background technology. Summary of the invention

[0006] The purpose of the present invention is to provide a waste gas treatment device for chemical safety, so as to solve the problem proposed in the above-mentioned background technology that during the purification process of chemical waste gas by spraying purification liquid, part of the atomized waste liquid will flow downward along the inner wall of the purification box into the purification liquid at the bottom, causing purification liquid contamination, reducing the purification liquid's absorption and purification capacity for waste gas, and affecting the waste gas treatment effect.

[0007] To achieve the above object, the present invention provides the following technical solution: a waste gas treatment device for chemical safety, comprising a purifier, a waste liquid collection component is arranged at the bottom of the purifier, a waste gas treatment component is arranged on the outer surface of the purifier, and a reprocessing component is arranged inside the purifier; The waste liquid collection assembly includes a liquid storage tank, a conical liquid collecting cover is fixedly installed inside the liquid storage tank, a bucket-shaped drainage plate is fixedly installed on the outer surface of the conical liquid collecting cover near the top, a plurality of liquid collecting holes are opened on the top of the conical liquid collecting cover, a plurality of liquid inlet holes are opened on the outer surface of the conical liquid collecting cover near the bucket-shaped drainage plate, and a drain pipe is fixedly connected to the bottom of the conical liquid collecting cover.

[0008] Preferably, a device cover is installed on the top of the purifier by bolts, an air outlet pipe is fixedly connected to the top of the device cover, and an air inlet pipe is arranged on the outer surface of the purifier near the bottom.

[0009] Preferably, one end of the air inlet pipe is fixedly connected to an annular pipe, the inner wall of the annular pipe is fixedly connected to a plurality of air jet pipes, and one end of each of the plurality of air jet pipes is fixedly mounted with a protective sheet.

[0010] Preferably, one end of the air inlet pipe is fixedly passed through the interior of the purifier, the top of the liquid storage tank is connected to the bottom of the purifier by bolts, and the bottom end of the liquid discharge pipe is fixedly passed through the bottom of the liquid storage tank.

[0011] Preferably, the exhaust gas treatment component comprises a mounting plate, a liquid pump is mounted on the top of the mounting plate by bolts, and an output end of the liquid pump is connected to a liquid outlet pipe by a flange.

[0012] Preferably, one end of the liquid outlet pipe is fixedly connected to a connecting pipe, a plurality of atomizing nozzles are fixedly installed on the bottom of the connecting pipe, and the input end of the liquid pump is connected to a liquid extraction pipe via a flange.

[0013] Preferably, the outer surface of the mounting plate is fixedly mounted on the outer surface of the purifier, one end of the liquid outlet pipe is fixedly penetrated into the interior of the purifier, the outer surface of the connecting pipe is fixedly mounted on the inner wall of the purifier, and one end of the liquid extraction pipe is fixedly penetrated into the interior of the liquid storage tank.

[0014] Preferably, the reprocessing assembly includes a threaded plate, a first cyclone plate is fixedly installed on the inner wall of the threaded plate near the bottom, and a second cyclone plate is fixedly installed on the inner wall of the threaded plate near the top, and the positions of the first cyclone plate and the second cyclone plate are staggered.

[0015] Preferably, a fixing ring is fixedly installed inside the first swirl plate and the second swirl plate, a threaded shell is embedded in the internal thread of the fixing ring, and a wire mesh demister is arranged inside the threaded shell.

[0016] Preferably, an arc-shaped adsorption plate is installed on the top of the threaded plate by bolts, a silica gel medium is arranged inside the arc-shaped adsorption plate, and the outer surface of the threaded plate is threadedly connected to the inner wall of the purifier near the connecting pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is used, the liquid pump is started, and the purified liquid in the liquid storage tank is pumped into the liquid outlet pipe and the connecting pipe through the liquid pumping pipe, and the purified liquid in atomized state is sprayed out through the atomizing nozzle, and fully contacts with the waste gas flowing obliquely upward to achieve the waste gas treatment effect. Under the action of gravity, the waste liquid drips downward onto the conical liquid collecting cover, flows into the inside of the conical liquid collecting cover through the liquid collecting hole and the liquid inlet hole, and is discharged to the outside through the liquid discharge pipe. Under the action of the waste liquid collection component, the waste liquid is prevented from dripping into the purified liquid below, causing the purified liquid to be contaminated, and affecting the subsequent treatment effect of the waste gas.

[0018] 2. When the present invention is used, when the gas flows upward, it passes through the first cyclone plate, intercepts the waste liquid in the gas, and then comes to the second cyclone plate, which again blocks the residual waste liquid in the gas, so that the gas and the waste liquid are separated. Part of the gas passes through the wire mesh demister to achieve gas-liquid separation. The arc-shaped adsorption plate is filled with silica gel medium, which can re-adsorb the gas. Under the action of the reprocessing component, part of the waste liquid is prevented from being discharged together with the gas, affecting the normal operation of subsequent equipment, and improving the waste gas treatment effect.

[0019] 3. When the present invention is used, after removing the cover, the reprocessing assembly can be removed, so that the arc adsorption plate or the wire mesh demister can be replaced separately, and the first cyclone plate and the second cyclone plate can be cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front perspective view of a waste gas treatment device for chemical safety of the present invention; Figure 2 This is a structural cross-sectional expanded stereoscopic diagram of a waste gas treatment device for chemical safety of the present invention; Figure 3 This is a perspective view of the structure of a waste liquid collection component in a waste gas treatment device for chemical safety of the present invention; Figure 4 It is a schematic cross-sectional view of the structure of a conical liquid collecting hood in a waste gas treatment device for chemical safety of the present invention; Figure 5 This is a perspective view of the structure of a connecting pipe in a waste gas treatment device for chemical safety of the present invention; Figure 6 This is a perspective view of the structure of a reprocessing component in a waste gas treatment device for chemical safety of the present invention; Figure 7 This is a structural expansion stereogram of an arc-shaped adsorption plate in a waste gas treatment device for chemical safety of the present invention; Figure 8 It is a schematic cross-sectional view of the structure of a threaded plate in a waste gas treatment device for chemical safety of the present invention; Fig. 9 This is a three-dimensional diagram of the structure of the second cyclone plate in a waste gas treatment device for chemical safety of the present invention.

[0021] In the figure: 1. Purifier; 2. Waste liquid collection component; 201. Liquid storage tank; 202. Conical liquid collection cover; 203. Bucket-shaped drainage plate; 204. Liquid collection hole; 205. Liquid inlet hole; 206. Drain pipe; 3. Waste gas treatment component; 301. Mounting plate; 302. Liquid pump; 303. Liquid outlet pipe; 304. Connecting pipe; 305. Atomizing nozzle; 306. Liquid extraction pipe; 4. Reprocessing component; 401. Threaded plate; 402. First swirl plate; 403. Second swirl plate; 404. Fixed ring; 405. Threaded shell; 406. Wire mesh demister; 407. Arc adsorption plate; 5. Device cover; 6. Air outlet pipe; 7. Air inlet pipe; 8. Annular pipe; 9. Jet pipe; 10. Protective sheet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figure 1-Figure 9As shown, the present invention provides a technical solution: a waste gas treatment device for chemical safety, comprising a purifier 1, a waste liquid collection component 2 is arranged at the bottom of the purifier 1, a waste gas treatment component 3 is arranged on the outer surface of the purifier 1, and a reprocessing component 4 is arranged inside the purifier 1; the waste liquid collection component 2 comprises a liquid storage tank 201, a conical liquid collecting cover 202 is fixedly installed inside the liquid storage tank 201, a bucket-shaped drainage plate 203 is fixedly installed on the outer surface of the conical liquid collecting cover 202 near the top, a plurality of liquid collecting holes 204 are opened on the top of the conical liquid collecting cover 202, a plurality of liquid inlet holes 205 are opened on the outer surface of the conical liquid collecting cover 202 near the bucket-shaped drainage plate 203, a drain pipe 206 is fixedly connected to the bottom of the conical liquid collecting cover 202, a device cover 5 is installed on the top of the purifier 1 by bolts, an air outlet pipe 6 is fixedly connected to the top of the device cover 5, an air inlet pipe 7 is arranged near the bottom of the outer surface of the purifier 1, one end of the air inlet pipe 7 is fixedly connected to an annular pipe 8, and the inner wall of the annular pipe 8 is fixedly connected There are multiple jet pipes 9, one end of each of which is fixedly mounted with a protective sheet 10, one end of the air inlet pipe 7 is fixedly penetrated into the interior of the purifier 1, the top of the liquid storage tank 201 is connected to the bottom of the purifier 1 by bolts, the bottom end of the discharge pipe 206 is fixedly penetrated into the bottom of the liquid storage tank 201, the exhaust gas treatment component 3 includes a mounting plate 301, a liquid pump 302 is bolted to the top of the mounting plate 301, the output end of the liquid pump 302 is connected to a liquid outlet pipe 303 through a flange, one end of the liquid outlet pipe 303 is fixedly connected to a connecting pipe 304, a plurality of atomizing nozzles 305 are fixedly mounted at the bottom of the connecting pipe 304, the input end of the liquid pump 302 is connected to a liquid extraction pipe 306 through a flange, the outer surface of the mounting plate 301 is fixedly mounted on the outer surface of the purifier 1, one end of the liquid outlet pipe 303 is fixedly penetrated into the interior of the purifier 1, the outer surface of the connecting pipe 304 is fixedly mounted on the inner wall of the purifier 1, and one end of the liquid extraction pipe 306 is fixedly penetrated into the interior of the liquid storage tank 201.

[0024] In this embodiment, when in use, the filtered exhaust gas is transported to the annular tube 8 through the air inlet pipe 7, and then transported to the inside of the purifier 1 through multiple jet pipes 9, one end of each of the multiple jet pipes 9 is directed toward the conical liquid collecting cover 202. Figure 2As shown, the jet pipe 9 sprays the waste gas toward the conical liquid collecting cover 202, and the waste gas flows obliquely upward along the outer surface of the bucket-shaped guide plate 203. The bottom end of the atomizing nozzle 305 is tilted downward, so that the waste gas flows toward the atomizing nozzle 305, which facilitates the subsequent purification liquid sprayed by the atomizing nozzle 305 to better contact the waste gas and purify the waste gas. An observation window is set on the front surface of the liquid storage tank 201, and a liquid injection pipe is also connected to the outer surface of the liquid storage tank 201. A sealing plug is set at the top of the liquid injection pipe. The sealing plug is opened in advance, and the purification liquid is injected into the liquid storage tank 201 through the liquid injection pipe. Start the liquid pump 302, and under the pressure of the liquid pump 302, the purification liquid in the liquid storage tank 201 is pumped into the liquid outlet pipe 303 and the connecting pipe 304 through the liquid extraction pipe 306, and then the atomized purification liquid is sprayed through multiple atomizing nozzles 305, which fully contacts with the waste gas flowing obliquely upward to achieve the effect of waste gas treatment. Under the action of gravity, part of the purified waste liquid drips downward onto the conical liquid collecting cover 202, part of the waste liquid flows into the interior of the conical liquid collecting cover 202 through multiple liquid collecting holes 204, and the waste liquid that falls on the top of the conical liquid collecting cover 202 flows downward along the inclined surface of the conical liquid collecting cover 202 and flows into the interior of the conical liquid collecting cover 202 through multiple liquid inlet holes 205. The bottom end of the drain pipe 206 is connected to the waste liquid collector, and the waste liquid inside the conical liquid collecting cover 202 is discharged to the outside through the drain pipe 206. Under the action of the waste liquid collecting component 2, the waste liquid is prevented from dripping into the purification liquid below, causing the purification liquid to be contaminated and affecting the subsequent treatment effect of the waste gas. This solves the problem that during the purification treatment of chemical waste gas by spraying purification liquid, part of the waste liquid will be discharged along with the gas, causing blockage or corrosion to subsequent equipment and other adverse effects; part of the atomized waste liquid will flow downward along the inner wall of the purification box into the purification liquid at the bottom, causing purification liquid pollution, reducing the purification liquid's absorption and purification capacity for waste gas, and affecting the waste gas treatment effect.

[0025] Embodiment 2: Figure 1-Figure 2 and Figure 5-Figure 9 As shown, a cover 5 is installed on the top of the purifier 1 by bolts, and an outlet pipe 6 is fixedly connected to the top of the cover 5. An air inlet pipe 7 is arranged near the bottom of the outer surface of the purifier 1, and the reprocessing component 4 includes a threaded plate 401, a first swirl plate 402 is fixedly installed on the inner wall of the threaded plate 401 near the bottom, and a second swirl plate 403 is fixedly installed on the inner wall of the threaded plate 401 near the top. The positions of the first swirl plate 402 and the second swirl plate 403 are staggered, and fixing rings 404 are fixedly installed inside the first swirl plate 402 and the second swirl plate 403, and a threaded shell 405 is embedded in the internal threads of the fixing ring 404, and a wire mesh demister 406 is arranged inside the threaded shell 405, an arc-shaped adsorption plate 407 is installed on the top of the threaded plate 401 by bolts, and a silica gel medium is arranged inside the arc-shaped adsorption plate 407, and the outer surface of the threaded plate 401 is threadedly connected to the inner wall of the purifier 1 near the connecting pipe 304.

[0026] In this embodiment, when in use, after the waste gas is treated by the waste gas treatment component 3, part of the waste liquid will flow upward with the treated gas to the reprocessing component 4. The reprocessing component 4 is provided with a first swirl plate 402 and a second swirl plate 403. The first swirl plate 402 and the second swirl plate 403 are staggered, and the inclined channel of the first swirl plate 402 faces the inclined plate surface of the second swirl plate 403, such as Figure 8 As shown, when the gas flows upward, it passes through the first cyclone plate 402, intercepts the waste liquid in the gas, and continues to flow through the inclined channel of the first cyclone plate 402, and comes to the second cyclone plate 403, and blocks the residual waste liquid in the gas again, so that the gas and the waste liquid are separated. A wire mesh demister 406 is set in the threaded shell 405. When part of the gas entrains the atomized waste liquid, the gas can smoothly pass through the channel of the wire mesh demister 406, and the droplets will hit the wire mesh of the wire mesh demister 406 due to the large inertia, and gather into larger droplets, which drip downward under the action of gravity, thereby achieving gas-liquid separation. The arc adsorption plate 407 is filled with silica gel medium. The gas that has separated the residual waste liquid from the first cyclone plate 402 and the second cyclone plate 403 continues to flow upward, and passes through the arc adsorption plate 407. Silica gel is a highly active adsorption material. Silica gel has a strong adsorption capacity for water, and can also adsorb some polar organic compounds and acidic gases, and can re-adsorb gas. Under the action of the reprocessing component 4, part of the waste liquid is prevented from being discharged along with the gas, thereby preventing the normal operation of subsequent equipment from being affected, thereby improving the waste gas treatment effect.

[0027] The effect and working principle of the whole mechanism are as follows: when in use, the filtered waste gas is transported to the annular pipe 8 through the air inlet pipe 7, and then the waste gas is transported to the inside of the purifier 1 through multiple jet pipes 9, the liquid pump 302 is started, and the purified liquid in the liquid storage tank 201 is pumped to the liquid outlet pipe 303 and the connecting pipe 304 through the liquid extraction pipe 306, and then the atomized purified liquid is sprayed out through multiple atomizing nozzles 305, which fully contacts the waste gas flowing obliquely upward, so as to achieve the effect of waste gas treatment. Part of the purified waste liquid drips downward onto the conical liquid collecting cover 202 under the action of gravity, and part of the waste liquid flows into the inside of the conical liquid collecting cover 202 through multiple liquid collecting holes 204, and the waste liquid falling on the top of the conical liquid collecting cover 202 will flow downward along the inclined surface of the conical liquid collecting cover 202, and flow into the inside of the conical liquid collecting cover 202 through multiple liquid inlet holes 205. The bottom end of the drain pipe 206 is connected to the waste liquid collector, and the waste liquid inside the conical liquid collecting cover 202 is discharged to the outside through the drain pipe 206. Under the action of the waste liquid collecting assembly 2, the waste liquid is prevented from dripping into the purified liquid below, causing the purified liquid to be contaminated. Part of the waste liquid will flow upward with the treated gas. When the gas passes through the first cyclone plate 402, the waste liquid in the gas is intercepted. When the gas continues to flow through the inclined channel of the first cyclone plate 402, it comes to the second cyclone plate 403, and the residual waste liquid in the gas is blocked again, so that the gas and the waste liquid are separated. A wire mesh demister 406 is set in the threaded housing 405. When part of the gas entrains the atomized waste liquid through, the gas can smoothly pass through the channel of the wire mesh demister 406, and the droplets will hit the wire mesh of the wire mesh demister 406 due to the large inertia, and gather into larger droplets, which drip downward under the action of gravity, thereby realizing gas-liquid separation. The arc-shaped adsorption plate 407 is filled with silica gel medium. The gas separated from the residual waste liquid by the first cyclone plate 402 and the second cyclone plate 403 continues to flow upward, and can be re-adsorbed by the arc-shaped adsorption plate 407 to improve the waste gas treatment effect.

[0028] Among them, the liquid pump 302 is a prior art, and its components and operating principles are public technologies, which will not be explained in detail here.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste gas treatment device for chemical safety, comprising a purifier (1), characterized in that: A waste liquid collection component (2) is arranged at the bottom of the purifier (1), a waste gas treatment component (3) is arranged on the outer surface of the purifier (1), and a reprocessing component (4) is arranged inside the purifier (1); The waste liquid collection assembly (2) comprises a liquid storage tank (201), a conical liquid collecting cover (202) being fixedly mounted inside the liquid storage tank (201), a bucket-shaped drainage plate (203) being fixedly mounted on the outer surface of the conical liquid collecting cover (202) near the top, a plurality of liquid collecting holes (204) being provided on the top of the conical liquid collecting cover (202), a plurality of liquid inlet holes (205) being provided on the outer surface of the conical liquid collecting cover (202) near the bucket-shaped drainage plate (203), and a liquid discharge pipe (206) being fixedly connected to the bottom of the conical liquid collecting cover (202).

2. The chemical safety waste gas treatment device according to claim 1, characterized in that: A cover (5) is mounted on the top of the purifier (1) by means of bolts, an air outlet pipe (6) is fixedly connected to the top of the cover (5), and an air inlet pipe (7) is arranged on the outer surface of the purifier (1) near the bottom.

3. The chemical safety waste gas treatment device according to claim 2, characterized in that: One end of the air inlet pipe (7) is fixedly connected to an annular pipe (8), the inner wall of the annular pipe (8) is fixedly connected to a plurality of air injection pipes (9), and one end of each of the plurality of air injection pipes (9) is fixedly mounted with a protective sheet (10).

4. The chemical safety waste gas treatment device according to claim 3 is characterized in that: One end of the air inlet pipe (7) is fixedly inserted into the interior of the purifier (1), the top of the liquid storage tank (201) is connected to the bottom of the purifier (1) via bolts, and the bottom end of the liquid discharge pipe (206) is fixedly inserted into the bottom of the liquid storage tank (201).

5. The chemical safety waste gas treatment device according to claim 1, characterized in that: The exhaust gas treatment assembly (3) comprises a mounting plate (301), a liquid pump (302) being mounted on the top of the mounting plate (301) via bolts, and an output end of the liquid pump (302) being connected to a liquid outlet pipe (303) via a flange.

6. The chemical safety waste gas treatment device according to claim 5, characterized in that: One end of the liquid outlet pipe (303) is fixedly connected to a connecting pipe (304), a plurality of atomizing nozzles (305) are fixedly installed at the bottom of the connecting pipe (304), and the input end of the liquid pump (302) is connected to a liquid extraction pipe (306) via a flange.

7. The chemical safety waste gas treatment device according to claim 6, characterized in that: The outer surface of the mounting plate (301) is fixedly mounted on the outer surface of the purifier (1), one end of the liquid outlet pipe (303) is fixedly penetrated into the interior of the purifier (1), the outer surface of the connecting pipe (304) is fixedly mounted on the inner wall of the purifier (1), and one end of the liquid extraction pipe (306) is fixedly penetrated into the interior of the liquid storage tank (201).

8. The chemical safety waste gas treatment device according to claim 1, characterized in that: The reprocessing assembly (4) comprises a threaded plate (401), a first cyclone plate (402) being fixedly mounted on the inner wall of the threaded plate (401) near the bottom, and a second cyclone plate (403) being fixedly mounted on the inner wall of the threaded plate (401) near the top, wherein the first cyclone plate (402) and the second cyclone plate (403) are positioned alternately.

9. The chemical safety waste gas treatment device according to claim 8, characterized in that: A fixing ring (404) is fixedly installed inside the first swirl plate (402) and the second swirl plate (403), a threaded housing (405) is embedded in the internal threads of the fixing ring (404), and a wire mesh demister (406) is arranged inside the threaded housing (405).

10. The chemical safety waste gas treatment device according to claim 9, characterized in that: An arc-shaped adsorption plate (407) is installed on the top of the threaded plate (401) by means of bolts, a silica gel medium is arranged inside the arc-shaped adsorption plate (407), and the outer surface of the threaded plate (401) is threadedly connected to the inner wall of the purifier (1) near the connecting pipe (304).

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