Purifier for harmful gas in coal mine

Abstract

The utility model discloses a harmful gas purifier in a coal mine well, which relates to the technical field of gas purification and comprises a base plate, a telescopic frame is fixedly mounted on the base plate, a support column is fixedly mounted at the moving end of the telescopic frame, a diversion trench is further fixedly mounted on the support column, a gas inlet cylinder is fixedly mounted on the support column, and a gas outlet cylinder is fixedly mounted on the gas inlet cylinder. A filter inner cylinder is further fixedly mounted in the air inlet cylinder, a guide cylinder is fixedly mounted outside the filter inner cylinder, an outer cylinder is fixedly mounted outside the guide cylinder, the outer cylinder is fixedly connected with the air inlet cylinder, a purification cavity is formed between the interior of the outer cylinder and the outer wall of the filter inner cylinder, and purification substances are arranged in the purification cavity. According to the device disclosed by the invention, various purification substances are arranged in the purification chamber, so that a plurality of devices can be placed in a mine, different harmful gases in the mine can be chemically neutralized by the devices, and the harmfulness of the gases in the mine is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas purification, in particular to a harmful gas purifier in a coal mine shaft. Background Art

[0002] Coal mines are generally divided into underground coal mines and surface coal mines. When the coal seam is far from the surface, it is generally chosen to excavate underground roadways to mine coal, which is an underground coal mine. During the process of coal mine exploitation, when draining water from old roadways and goafs in underground coal mines or when a water inrush accident occurs in the mine, hydrogen sulfide gas accumulated in the flooded roadways may escape in large quantities. At the same time, since there are other associated gases deposited in the coal mine, such as gas, carbon monoxide, hydrogen sulfide, sulfur dioxide, nitrogen dioxide, ammonia, hydrogen and mine dust, etc., such harmful gases will seriously affect the air quality in the underground coal mine and severely limit the scope of workers in the underground coal mine.

[0003] In the prior art, it is often the case that exhaust fans or ventilators are used to extract the gas in the underground coal mine, and at the same time, oxygen is transported into the underground coal mine. Such methods will also be expanded and repaired to varying degrees due to the depth and size of the underground coal mine, consuming a huge amount and taking a long installation time. Summary of the Invention

[0004] In view of the above technical problems, the utility model proposes the following technical solutions:

[0005] A harmful gas purifier in a coal mine shaft includes a base plate. A telescopic frame is fixedly installed on the base plate. A support column is fixedly installed at the movable end of the telescopic frame. A flow guide groove is also fixedly installed on the support column. An air inlet cylinder is fixedly installed on the support column. A plurality of air inlet filters are fixedly installed at one end of the air inlet cylinder close to the support column. A plurality of small filter holes are provided on the air inlet filters to prevent residues from entering the device. A filter inner cylinder is also fixedly installed in the air inlet cylinder. A flow guide cylinder is fixedly installed outside the filter inner cylinder. An outer cylinder is fixedly installed outside the flow guide cylinder. The outer cylinder is fixedly connected to the air inlet cylinder. A purification chamber is formed between the inside of the outer cylinder and the outer wall of the filter inner cylinder. A purification substance is provided in the purification chamber.

[0006] Furthermore, a flow guide cotton is fixedly installed at one end of the filter inner cylinder close to the support column. The flow guide cotton is made of sponge material and is also fixedly connected to the support column. The flow guide cotton is used to guide the water in the filter inner cylinder into the flow guide groove of the support column, so as to discharge the liquid out of the device.

[0007] Further, an internal air flow driving module is provided at one end of the filtering inner cylinder away from the guide cotton. The internal air flow driving module is used to drive the air flow. A lower filter plate is fixedly installed in the filtering inner cylinder. The lower filter plate is arranged between the internal air flow driving module and the ventilation holes. A collecting filter plate is also arranged in the filtering inner cylinder. The collecting filter plate is arranged between the internal air flow driving module and the lower filter plate.

[0008] Further, the lower filter plate is made of activated carbon, and the collecting filter plate is made of PTFE film. After the gas enters the filtering inner cylinder through the ventilation holes, the gas passes through the lower filter plate and the collecting filter plate and then flows out of the filtering inner cylinder after being accelerated by the internal air flow driving module.

[0009] Further, the guide cylinder is used to change the direction of the gas flow. A protective cover is fixedly installed at one end of the outer cylinder away from the support column to play a protective role. A spray pipe is fixedly installed on the protective cover.

[0010] Further, a plurality of spray holes are provided at one end of the spray pipe away from the protective cover. An upper air flow driving device is also arranged in the spray pipe to accelerate the air flow out. In this way, the gas accelerated by the upper air flow driving device is sprayed into the air after passing through the spray pipe.

[0011] The beneficial effects of the present invention compared with the prior art are as follows: (1) By arranging a variety of purification substances in the purification chamber of the device, multiple devices can be placed in the mine, so that the device can chemically neutralize different harmful gases in the mine, reducing the harmfulness of the gases in the mine; (2) The device reduces the moisture and dust particles of the gas in the mine through the collecting filter plate and the lower filter plate, improves the air quality in the mine, and enables the purification substances in the purification chamber to be in a better environment, extending the service life. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0013] Figure 2 It is a schematic diagram of the sectional structure of the support column, air inlet cylinder, outer cylinder, and guide cylinder of the present utility model.

[0014] Figure 3 It is a schematic diagram of the sectional structure of the air inlet cylinder, outer cylinder, protective cover, filtering inner cylinder, and guide cylinder of the present utility model.

[0015] Reference numerals: 101 - base plate; 102 - telescopic rack; 201 - support column; 202 - intake air filter; 203 - intake air cylinder; 204 - outer cylinder; 205 - protective cover; 206 - spray pipe; 207 - upper air flow driving device; 301 - guide cotton; 302 - ventilation hole; 303 - lower filter plate; 304 - collection filter plate; 305 - inner air flow driving module; 306 - filtering inner cylinder; 307 - guide cylinder. Detailed implementation mode

[0016] In order to make the purpose, technical solution and advantages of the present utility model clearer, the following further elaborates on the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0017] A harmful gas purifier in a coal mine shaft includes a base plate 101, on which a telescopic rack 102 is fixedly installed. The movable end of the telescopic rack 102 is fixedly installed with a support column 201. A diversion groove is also fixedly installed on the support column 201. An intake air cylinder 203 is fixedly installed on the support column 201. One end of the intake air cylinder 203 close to the support column 201 is fixedly installed with a plurality of intake air filters 202. A plurality of small filter holes are provided on the intake air filters 202 to prevent residues from entering the device. A filtering inner cylinder 306 is also fixedly installed in the intake air cylinder 203. One end of the filtering inner cylinder 306 close to the support column 201 is fixedly installed with guide cotton 301. The guide cotton 301 is made of sponge material and is also fixedly connected to the support column 201. The guide cotton 301 is used to guide the water in the filtering inner cylinder 306 into the diversion groove of the support column 201, so as to drain the liquid out of the device.

[0018] An inner air flow driving module 305 is arranged at one end of the filtering inner cylinder 306 away from the guide cotton 301. The inner air flow driving module 305 is used to drive the air flow. A lower filter plate 303 is also fixedly installed in the filtering inner cylinder 306. The lower filter plate 303 is arranged between the inner air flow driving module 305 and the ventilation hole 302. A collection filter plate 304 is also arranged in the filtering inner cylinder 306. The collection filter plate 304 is arranged between the inner air flow driving module 305 and the lower filter plate 303. The lower filter plate 303 is composed of activated carbon. The material of the collection filter plate 304 is PTFE film. After the gas enters the filtering inner cylinder 306 through the ventilation hole 302, the gas then passes through the lower filter plate 303 and the collection filter plate 304 and then flows out of the filtering inner cylinder 306 after being accelerated by the inner air flow driving module 305.

[0019] A flow guide cylinder 307 is fixedly installed outside the filtering inner cylinder 306. An outer cylinder 204 is fixedly installed outside the flow guide cylinder 307. The outer cylinder 204 is fixedly connected to the air inlet cylinder 203. A purification chamber is formed between the inner part of the outer cylinder 204 and the outer wall of the filtering inner cylinder 306. A purification substance is arranged in the purification chamber. The purification substance can be sodium chlorate solution, hydrogen peroxide solution, etc. Among them, the sodium chlorate solution is used to oxidize toxic gases such as sulfur dioxide and carbon monoxide in the mine into harmless sulfur trioxide and carbon dioxide. At the same time, the sodium chlorate solution also has a certain removal effect on hydrogen sulfide and ammonia in the air; the hydrogen peroxide solution can oxidize toxic gases such as hydrogen sulfide and carbon monoxide in the mine and convert them into non-toxic or low-toxic compounds such as sulfates and carbonates. In this way, by allowing the gas in the mine to pass through such liquids or solids and then undergoing chemical reactions to neutralize or change the harmful gases in the mine, making them into non-dangerous gases.

[0020] The flow guide cylinder 307 is used to change the gas flow direction. A protective cover 205 is fixedly installed at one end of the outer cylinder 204 away from the support column 201 to play a protective role. A jet pipe 206 is fixedly installed on the protective cover 205. A plurality of jet holes are arranged at one end of the jet pipe 206 away from the protective cover 205. An upper air flow driving device 207 is also arranged in the jet pipe 206 to accelerate the air flow out. In this way, the gas accelerated by the upper air flow driving device 207 is sprayed into the air after passing through the jet pipe 206.

[0021] Working principle: When this device is in use, multiple devices can be placed in the mine. At the same time, different purification substances can be placed in the purification chambers of different devices, or a certain purification substance can be used specifically. Then, this device is placed or fixed in the mine through the base plate 101. The user can adjust the height of this device by stretching or compressing the telescopic frame 102 according to the height in the mine. Then, the inner air flow driving module 305 and the upper air flow driving device 207 are started to drive the air flow to flow. The air flow enters this device from the air inlet filter 202. Then, the air flow passes through the air inlet cylinder 203 and then enters the filtering inner cylinder 306 from the ventilation holes 302. Then, the air flow will first pass through the lower filter plate 303 to allow the activated carbon to first reduce the particulate matter in the air flow. When the air flow passes through the collection filter plate 304, the collection filter plate 304 will reduce the water vapor in the air flow. The intercepted water vapor will pass through the lower filter plate 303 and then fall to the bottom of the filtering inner cylinder 306. After being adsorbed by the guide cotton 301, due to gravity, it flows out of this device from the flow guide groove on the support column 201.

[0022] After the gas passes through the collection filter plate 304, it flows out of the inner filtration cylinder 306 and enters the purification chamber. Then, after the air flow passes through the purification substance, it rushes out of the device from the jet pipe 206 through the upper air flow driving device 207. In the purification chamber, the gas will react chemically with the substances in the purification chamber to some extent, thus achieving the purification effect.

[0023] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A harmful gas purifier in a coal mine, comprising a base plate (101), characterized in that: A telescopic frame (102) is fixedly mounted on the base plate (101), a support column (201) is fixedly mounted on the movable end of the telescopic frame (102), a guide groove is also fixedly mounted on the support column (201), an air intake cylinder (203) is fixedly mounted on the support column (201), a plurality of air intake screens (202) are fixedly mounted on one end of the air intake cylinder (203) close to the support column (201), and a plurality of small filter holes are arranged on the air intake screen (202). In order to prevent residue from entering the device, a filter inner cylinder (306) is fixedly installed inside the air inlet cylinder (203), a guide cylinder (307) is fixedly installed outside the filter inner cylinder (306), an outer cylinder (204) is fixedly installed outside the guide cylinder (307), the outer cylinder (204) is fixedly connected to the air inlet cylinder (203), and a purification chamber is formed between the inner wall of the outer cylinder (204) and the filter inner cylinder (306), and a purification substance is arranged in the purification chamber.

2. A harmful gas purifier in a coal mine according to claim 1, characterized in that: A guide cotton (301) is fixedly installed at one end of the filter inner cylinder (306) close to the support column (201). The guide cotton (301) is made of sponge material and is also fixedly connected to the support column (201). The guide cotton (301) is used to guide water in the filter inner cylinder (306) into the guide groove of the support column (201), thereby allowing the liquid to be discharged outside the device.

3. The harmful gas purifier in a coal mine according to claim 1, characterized in that: An inner airflow driving module (305) is arranged at one end of the filter inner cylinder (306) away from the guide cotton (301), and the inner airflow driving module (305) is used to drive the airflow to flow. A lower filter plate (303) is also fixedly installed in the filter inner cylinder (306), and the lower filter plate (303) is arranged between the inner airflow driving module (305) and the vent (302). A collecting filter plate (304) is also arranged in the filter inner cylinder (306), and the collecting filter plate (304) is arranged between the inner airflow driving module (305) and the lower filter plate (303).

4. A harmful gas purifier in a coal mine according to claim 3, characterized in that: The lower filter plate (303) is made of activated carbon, and the collecting filter plate (304) is made of a PTFE film. When the gas enters the filter inner cylinder (306) through the vent hole (302), the gas passes through the lower filter plate (303) and the collecting filter plate (304), and then is accelerated by the internal airflow driving module (305) and flows out of the filter inner cylinder (306).

5. The harmful gas purifier in a coal mine according to claim 1, characterized in that: The guide tube (307) is used to change the flow direction of the gas. A protective cover (205) is fixedly installed on one end of the outer tube (204) away from the support column (201) to provide protection. A jet pipe (206) is fixedly installed on the protective cover (205).

6. A harmful gas purifier in a coal mine according to claim 5, characterized in that: A plurality of jet holes are arranged at one end of the jet pipe (206) away from the protective cover (205), and an upper airflow driving device (207) is also arranged inside the jet pipe (206) to accelerate the outflow of airflow, so that the gas accelerated by the upper airflow driving device (207) is sprayed into the air after passing through the jet pipe (206).

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