Coal mine gas prevention and control gas extraction device

Abstract

The utility model relates to the technical field of coal mine equipment discloses a coal mine gas prevention and treatment gas extraction device, including the mounting sleeve, the inner wall of mounting sleeve near the air inlet is fixedly installed with the mounting ring, the center place of mounting ring is provided with the mounting plate, and the fixedly connected with the mounting plate between mounting ring has the branch plate, the interval of branch plate, mounting plate and mounting plate is installed with the filter plate, the leeward side fixed mounting of mounting plate has motor no.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine equipment technology, specifically a coal mine gas extraction device for gas control. Background Technology

[0002] Coal mine gas, also known as coalbed methane or coalbed methane, is a mixture of methane, carbon dioxide, and nitrogen that escapes from coal and surrounding rock. Gas is a harmful factor in coal mining production; it not only pollutes the air, but when the gas content in the air is 5%–16%, it can explode upon contact with fire, causing accidents. Gas refers to harmful gases in mines, primarily composed of methane, sometimes alone. It is a colorless, odorless, tasteless, flammable, and explosive gas with higher diffusivity than air. While non-toxic, high concentrations can cause asphyxiation. Therefore, gas extraction is necessary before coal mining to prevent dangerous accidents.

[0003] A search revealed a gas extraction device for coal mine gas control, as disclosed in CN222333852U. This device includes an installation sleeve, an installation frame two fixedly installed on the inner wall of the installation sleeve, a servo motor one fixedly installed on the end face of the installation frame two, an installation block fixedly installed on the end face of the transmission rod of the servo motor one, a scraper fixedly installed on the side of the installation block, and an installation ring fixedly installed on the inner wall of the installation sleeve.

[0004] In actual use, the applicant found that the impurities scraped off by the above-mentioned coal mine gas extraction device fall into the collection box inside the collection shell. However, during subsequent ventilation, the impurities in the collection box are easily stirred up, causing secondary pollution of the assembly. In addition, both the above-mentioned ventilation device and the cleaning motor are equipped with filter plates on the air inlet side. Therefore, dust and impurities in the air will first come into contact with the ventilation device and the cleaning motor, thereby affecting the use and service life of the ventilation device and the cleaning motor. In order to solve the above-mentioned problems, a coal mine gas extraction device for prevention and control is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a gas extraction device for coal mine gas control in order to solve the problems mentioned above.

[0006] The technical solution adopted by this utility model is as follows: A coal mine gas control and extraction device includes an installation sleeve, an installation ring is fixedly installed on the inner wall of the installation sleeve near the air inlet, an installation plate is provided at the center of the installation ring, a support plate is fixedly connected between the installation plate and the installation ring, a filter plate is installed in the interval formed by the support plate, the installation plate and the installation plate, a motor is fixedly installed on the leeward side of the installation plate, and three scrapers are fixedly connected to the motor through the output shaft;

[0007] The bottom of the mounting sleeve is fixedly connected to a collection shell, and a collection box is slidably installed on the lower part of the collection shell. A cover plate is slidably connected to one side of the upper outer wall of the collection shell, and a push plate is fixedly connected to one end of the cover plate. An electric push rod is fixedly connected to the bottom of the collection shell, and the piston rod of the electric push rod is fixedly connected to the push plate.

[0008] In a preferred embodiment, the mounting sleeve is externally fixedly connected to a support frame.

[0009] In a preferred embodiment, a second motor is provided in the inner cavity of the mounting sleeve near the air outlet. A fan blade is fixedly connected to the output shaft of the second motor. Multiple brackets are fixedly connected to the outer wall of the second motor, and the outer ends of the brackets are fixedly installed on the inner wall of the mounting sleeve.

[0010] In a preferred embodiment, a pull handle is fixedly connected to one side wall of the collection box.

[0011] In a preferred embodiment, a grille is fixedly installed at the air inlet of the mounting sleeve.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] In this invention, by setting a baffle driven by an electric push rod, the upper part of the collection shell can be covered after cleaning, so that impurities in the collection box will be stirred up and cause secondary pollution when the air is drawn later.

[0014] In this invention, both the scraping motor and the exhaust device are located on the air outlet side of the filter plate, thereby preventing impurities from directly contacting the motor and exhaust device and damaging the equipment. This protects the motor and exhaust device and extends the service life of the equipment. Attached Figure Description

[0015] Figure 1 This is a simplified schematic diagram of the internal structure of this utility model from the front view;

[0016] Figure 2 This is a simplified structural diagram of the filtration device in this utility model;

[0017] Figure 3 This is a simplified three-dimensional structural diagram of the collecting device in this utility model.

[0018] The markings in the diagram are: 1-installation sleeve, 2-installation ring, 3-installation plate, 4-support plate, 5-filter plate, 6-motor one, 7-scraper, 8-collection shell, 9-collection box, 10-blind plate, 11-push plate, 12-electric push rod, 13-support frame, 14-motor two, 15-fan blade, 16-bracket, 17-handle, 18-grid. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] The following will combine Figures 1-3 A detailed description of a coal mine gas extraction device for gas control according to an embodiment of the present invention is provided. Example

[0021] This utility model provides a gas extraction device for coal mine gas control, which is referenced in the following embodiment. Figures 1 to 3 As shown, the device includes an installation sleeve 1. A second motor 14 is installed in the inner cavity of the installation sleeve 1 near the air outlet. A fan blade 15 is fixedly connected to the output shaft of the second motor 14. Multiple supports 16 are fixedly connected to the outer wall of the second motor 14. The outer ends of the supports 16 are fixedly installed on the inner wall of the installation sleeve 1. The above structure constitutes a coal mine gas extraction device. By starting the second motor 14, the fan blade 15 is driven to rotate, thereby drawing in the gas-laden air in the coal mine through the air inlet of the installation sleeve 1 and then discharging it through the air outlet of the installation sleeve 1, thus realizing the extraction and venting of gas-laden air.

[0022] refer to Figures 1 to 3 As shown, the external fixed connection of the mounting sleeve 1 is a support frame 13, which supports the entire extraction device in this structure.

[0023] refer to Figures 1 to 3 As shown, a grille 18 is fixedly installed at the air inlet of the mounting sleeve 1. This structure uses the grille 18 to prevent large debris from entering the mounting sleeve 1.

[0024] refer to Figures 1 to 3 As shown, an installation ring 2 is fixedly installed on the inner wall of the installation sleeve 1 near the air inlet. An installation plate 3 is set at the center of the installation ring 2. A support plate 4 is fixedly connected between the installation plate 3 and the installation ring 2. A filter plate 5 is installed in the area formed by the support plate 4, the installation plate 3 and the installation ring 2. A motor 6 is fixedly installed on the leeward side of the installation plate 3. Three scrapers 7 are fixedly connected to the motor 6 through the output shaft. In this structure, the filter plate 5 is used to filter impurities in the air drawn into the installation sleeve 1.

[0025] The motor 6 is started to drive the scraper 7 to rotate, thereby scraping and cleaning the impurities filtered down by the filter plate 5;

[0026] Furthermore, in the above structure, the scraped motor 6 and the exhaust device are both located on the air outlet side of the filter plate 5, thereby preventing impurities from directly contacting the motor 6 and the exhaust device and damaging the equipment. This protects the motor 6 and the exhaust device and extends the service life of the equipment.

[0027] refer to Figures 1 to 3 As shown, a collection shell 8 is fixedly connected to the bottom of the mounting sleeve 1. A collection box 9 is slidably installed on the lower part of the collection shell 8. A baffle 10 is slidably connected to the outer wall of one side of the upper part of the collection shell 8. A push plate 11 is fixedly connected to one end of the baffle 10. An electric push rod 12 is fixedly connected to the bottom of the collection shell 8. The piston rod of the electric push rod 12 is fixedly connected to the push plate 11. When the filter plate 5 is scraped and cleaned, the electric push rod 12 is activated to drive the baffle 10 on the push plate 11 to move outward, thereby opening the upper part of the collection shell 8, so that the scraped impurities can fall into the collection box 9 at the bottom of the collection shell 8. Then, after the cleaning is completed, the electric push rod 12 is activated again to drive the baffle 10 back to its original position to seal the upper part of the collection shell 8, thereby preventing the impurities in the collection box 9 from being stirred up during the subsequent ventilation.

[0028] Furthermore, when dealing with impurities in the collection box 9 later, personnel only need to pull the collection box 9 out of the collection shell 8 to clean up the collected impurities, which is convenient for cleaning and maintenance.

[0029] refer to Figures 1 to 3 As shown, a handle 17 is fixedly connected to one side wall of the collection box 9. In this structure, the handle 17 is used to facilitate personnel to pull the collection box 9.

[0030] The implementation principle of a coal mine gas extraction device according to an embodiment of this application is as follows: When in use, the motor 14 is started to drive the fan blade 15 to rotate, thereby drawing in the gas-laden air in the coal mine through the air inlet of the mounting sleeve 1 and then discharging it through the air outlet of the mounting sleeve 1, thereby realizing the extraction and venting of the gas-laden air.

[0031] During the above extraction process, the air will first pass through the filter plate 5, and the filter plate 5 will filter the impurities in the air drawn into the installation sleeve 1.

[0032] When cleaning the filter plate 5 by scraping, the electric push rod 12 is activated to move the baffle 10 on the push plate 11 outward, thereby opening the upper part of the collection shell 8, so that the scraped impurities can fall into the collection box 9 at the bottom of the collection shell 8. After cleaning is completed, the electric push rod 12 is activated again to move the baffle 10 back to its original position to seal the upper part of the collection shell 8, thereby preventing the impurities in the collection box 9 from being stirred up during subsequent ventilation.

[0033] When dealing with impurities in the collection box 9, personnel only need to pull the collection box 9 out of the collection shell 8 to clean up the collected impurities.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A gas extraction device for preventing and controlling coal mine gas, comprising a mounting sleeve (1), characterized in that: An installation ring (2) is fixedly installed on the inner wall of the installation sleeve (1) near the air inlet. An installation plate (3) is provided at the center of the installation ring (2). A support plate (4) is fixedly connected between the installation plate (3) and the installation ring (2). A filter plate (5) is installed in the interval formed by the support plate (4), the installation plate (3) and the installation ring (2). A motor (6) is fixedly installed on the leeward side of the installation plate (3). The motor (6) is fixedly connected to three scrapers (7) through the output shaft. The bottom of the mounting sleeve (1) is fixedly connected to a collection shell (8). A collection box (9) is slidably installed on the lower part of the collection shell (8). A cover plate (10) is slidably connected to one side of the upper part of the collection shell (8). A push plate (11) is fixedly connected to one end of the cover plate (10). An electric push rod (12) is fixedly connected to the bottom of the collection shell (8). The piston rod of the electric push rod (12) is fixedly connected to the push plate (11).

2. The gas extraction device for coal mine gas control as described in claim 1, characterized in that: The mounting sleeve (1) is externally fixedly connected to a support frame (13).

3. The gas extraction device for coal mine gas control as described in claim 1, characterized in that: A second motor (14) is provided in the inner cavity of the mounting sleeve (1) near the air outlet. A fan blade (15) is fixedly connected to the output shaft of the second motor (14). Multiple brackets (16) are fixedly connected to the outer wall of the second motor (14). The outer ends of the brackets (16) are fixedly installed on the inner wall of the mounting sleeve (1).

4. The gas extraction device for coal mine gas control as described in claim 1, characterized in that: A pull handle (17) is fixedly connected to one side wall of the collection box (9).

5. The gas extraction device for coal mine gas control as described in claim 1, characterized in that: A grille (18) is fixedly installed at the air inlet of the mounting sleeve (1).

Images