Gas filtering device for gas extraction

Abstract

The utility model relates to the field of product processing equipment in a coal mining process, in particular to a gas filtering device for gas extraction. According to the technical scheme, a gas filtering device is adopted for gas extraction, an external gas conveying pipe of the device is connected with a gas concentration detector, the gas concentration detector is connected into the gas filtering device, and the gas filtering device is provided with a filter residue separation chamber, a filter residue separation net, a micropore filter net and a water washing chamber. A slag collecting box is arranged at the lower part of the gas filtering device; the lower side of the filter residue separation chamber is connected with a hinge, the hinge is connected with a partition door, the lower end of the partition door is connected with a residue collection box, the lower end of the residue collection box is connected with a filter residue outlet, the right side of the filter residue separation chamber is provided with a filter residue separation net, the right side of the filter residue separation net is provided with an electric sliding plate, the electric sliding plate is connected with a cleaning brush, and the right side of the cleaning brush makes contact with a micropore filter net. The rightmost side of the partition door extends to the lower part of the microporous filter screen which is connected with the washing chamber.

Description

Technical Field

[0001] The utility model relates to the field of product processing equipment in the process of coal mining, in particular to a gas filtering device for gas extraction. Background Art

[0002] In the modern coal mining process, due to the mining of deep coal seams, the gas outflow gradually increases, and the gas outflow is mixed with coal slag dust and fracturing fluid vapor and other substances. The late gas composition is complex and the filtration efficiency is low, which is not conducive to efficient and safe production.

[0003] Gas detection needs to be carried out from time to time, and the gas after detection cannot be discharged at will, but needs to be processed centrally. Therefore, there is currently a lack of corresponding equipment for the treatment of gas detection gas in coal mines. Summary of the invention

[0004] The utility model provides a gas filtering device for gas extraction, which overcomes the defects of the existing gas real-time monitoring technology and effectively purifies the gas extracted during gas detection for further utilization.

[0005] The utility model is realized through the following technical solutions:

[0006] A gas extraction adopts a gas filter device, the gas filter device is connected to a gas concentration detector through a gas transmission pipe, the gas concentration detector is connected to the gas filter device, the gas filter device is provided with a filter residue separation chamber, a filter residue separation net, a microporous filter net and a water washing chamber, and a slag collecting box is provided at the bottom of the gas filter device;

[0007] The lower side of the filter residue separation chamber is connected to a hinge, the hinge is connected to a partition door, the lower end of the partition door is connected to a slag box, the lower end of the slag box is connected to a filter residue outlet, the right side of the filter residue separation chamber is a filter residue separation net, the right side of the filter residue separation net is an electric skateboard, the electric skateboard is connected to a cleaning brush, the right side of the cleaning brush contacts the microporous filter net, the right side of the partition door extends to the lower part of the microporous filter net, the microporous filter net is connected to a water washing chamber, the water washing chamber is isolated and separated from the lower slag box, the water washing chamber is connected to a pressure delivery fan, and the pressure delivery fan is connected to a gas outlet.

[0008] According to the gas extraction device using a gas filter, a pin is provided at the lower end of the electric skateboard, and a cleaning brush protrudes from the pin. According to the gas extraction device using a gas filter, gas entrained with fracturing fluid vapor and dust enters the water washing chamber through a microporous filter screen to filter the dust, and the dust adheres to the microporous filter screen, and the cleaning brush cleans the microporous filter screen.

[0009] According to the gas extraction device using a gas filter, when the cleaning brush moves downward, the ejector pin pushes the partition door open.

[0010] The dust falls into the slag box.

[0011] According to the gas extraction using a gas filtering device, the gas entrained with the fracturing fluid vapor passes through the water washing chamber, the fracturing fluid vapor dissolves in water, and the gas is transported to the gas outlet by the pressure delivery fan.

[0012] Special sealing materials are used at all positions of the device to ensure the airtightness of the device. A torsion spring is provided at the hinge to drive the partition door upwards, and a door stop is provided at the lower part of the microporous filter 10 to block and limit the partition door from moving upwards.

[0013] The beneficial effects of the utility model are as follows: the utility model is provided with a gas concentration detector, a filter residue separation net, a cleaning brush,

[0014] Microporous filter, pressure conveying fan, gas concentration detector can not only detect the air tightness of the device, but also estimate the gas production.

[0015] The water source replaced by the water washing chamber can be added to the fracturing fluid to prepare the corresponding fracturing fluid more economically.

[0016] The operation is simple, the gas filtration efficiency is high, it can be moved or fixed, and it has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] In the figure: 1-gas transmission pipe, 2-gas concentration detector, 3-hinge, 4-partition door, 5-filter residue separation chamber, 6-filter residue separation net,

[0019] 7-Electric skateboard, 8-Cleaning brush, 9-Thrust pin, 10-Microporous filter, 11-Water washing chamber, 12-Pressure delivery fan, 13-Gas

[0020] outlet, 14-slag collecting box, 15-slag outlet. Implementation

[0021] The embodiments of the present invention are further described below in conjunction with the accompanying drawings:

[0022] The utility model gas extraction adopts a gas filtering device, and the gas supply pipe 1 outside the device is connected to the gas concentration detector 2, and the gas concentration detector 2 is connected to the gas filtering device of the device.

[0023] The specific gas filtering device is provided with a filter residue separation chamber 5, a filter residue separation net 6, a microporous filter net 10 and a water washing chamber 11, and a slag collecting box 14 is provided at the lower part of the gas filtering device.

[0024] like Figure 1As shown, the lower side of the residue separation chamber 5 is connected to the hinge 3, the hinge 3 is connected to the partition door 4, the lower end of the partition door 4 is connected to the slag collecting box 14, the lower end of the slag collecting box 14 is connected to the residue outlet 15, the right side of the residue separation chamber 5 is the residue separation net 6, the right side of the residue separation net 6 is the electric slide 7, the electric slide 7 is connected to the cleaning brush 8, the right side of the cleaning brush 8 contacts the microporous filter 10, and the rightmost side of the partition door 4 is to the lower part of the microporous filter 10.

[0025] The microporous filter 10 is connected to a water washing chamber 11 , and the water washing chamber 11 is isolated and separated from a slag collecting box 14 at the bottom. The water washing chamber 11 is connected to a pressure conveying fan 12 , and the pressure conveying fan 12 is connected to a gas outlet 13 .

[0026] The lower end of the electric slide plate 7 is provided with a pin 9, which protrudes from the cleaning brush 8. A torsion spring is provided at the hinge, which drives the partition door upward. A door stop is provided at the lower part of the microporous filter 10 to block and restrict the partition door from moving upward. When the cleaning brush 8 moves downward, the pin 9 pushes the partition door 4 open, and the dust falls into the slag collecting box 14.

[0027] Gas entrained with fracturing fluid vapor and dust enters the water washing chamber 11 through the microporous filter 10 to filter dust, and the dust adheres to the microporous filter 10. The cleaning brush 8 cleans the microporous filter. Gas entrained with fracturing fluid vapor passes through the water washing chamber 11, and the fracturing fluid vapor dissolves in water. The gas is transported to the gas outlet 13 by the pressure delivery fan 12, and then used or safely discharged.

[0028] The operation mode of the device is as follows: First, the gas is tested by the gas concentration detector 2 to evaluate the air tightness of the device. After the gas entrained filter residue is separated by the filter residue separation net 6 in the filter residue separation chamber 5, the partition door 4 is opened, and the filter residue falls into the slag collection box 14. Then, the gas entrained with fracturing fluid vapor and dust passes through the microporous filter 10 to filter the dust and enter the water washing chamber 11. The dust adheres to the microporous filter 10, and the cleaning brush 8 cleans it to prevent clogging the microporous filter 10. When the cleaning brush 8 moves downward, the ejector pin 9 pushes the partition door 4 open, and the dust falls into the slag collection box 14 and is discharged from the filter residue outlet 14. The gas entrained with the fracturing fluid vapor passes through the water washing chamber 11, the fracturing fluid vapor dissolves in water, and the gas is transported to the gas outlet 13 by the pressure conveying fan 12.

[0029] The operation mode of the utility model can complete the initial gas filtering task according to the requirements of the staff, the operation is simple, and the filtering efficiency is high, providing a new type of device for coal mine gas filtering.

Claims

1. A gas extraction gas filtering device, characterized in that: The gas transmission pipe (1) outside the device is connected to a gas concentration detector (2), and the gas concentration detector (2) is connected to a gas filter device. The gas filter device is provided with a filter residue separation chamber (5), a filter residue separation net (6), a microporous filter net (10) and a water washing chamber (11), and a slag collecting box (14) is provided at the bottom of the gas filter device; The lower side of the filter residue separation chamber (5) is connected to a hinge (3), the hinge (3) is connected to a partition door (4), the lower end of the partition door (4) is connected to a slag collecting box (14), the lower end of the slag collecting box (14) is connected to a filter residue outlet (15), the right side of the filter residue separation chamber (5) is a filter residue separation net (6), the right side of the filter residue separation net (6) is an electric slide plate (7), the electric slide plate (7) is connected to a cleaning brush (8), the right side of the cleaning brush (8) contacts the microporous filter net (10), the rightmost side of the partition door (4) is connected to the lower part of the microporous filter net (10), The microporous filter (10) is connected to a water washing chamber (11), the water washing chamber (11) is isolated from a slag collecting box (14) at the bottom, the water washing chamber (11) is connected to a pressure conveying fan (12), and the pressure conveying fan (12) is connected to a gas outlet (13).

2. A gas filter device for gas extraction according to claim 1, characterized in that: A ejector pin (9) is arranged at the lower end of the electric slide plate (7), and the ejector pin (9) protrudes from the cleaning brush (8).

3. A gas filter device for gas extraction according to claim 1, characterized in that: Gas entrained with fracturing fluid vapor and dust enters the water washing chamber (11) through the microporous filter (10) to filter the dust, and the dust adheres to the microporous filter (10). The cleaning brush (8) cleans the microporous filter.

4. A gas filter device for gas extraction according to claim 2, characterized in that: When the cleaning brush (8) moves downward, the ejector pin (9) pushes the partition door (4) open, and the dust falls into the slag collecting box (14).

5. A gas filter device for gas extraction according to claim 1, characterized in that: The gas entrained with the fracturing fluid vapor passes through the water washing chamber (11), the fracturing fluid vapor dissolves in water, and the gas is transported to the gas outlet (13) by the pressure transport fan (12).

6. A gas filter device for gas extraction according to claim 1, characterized in that: A torsion spring is provided at the hinge, and the torsion spring drives the partition door upward. A door stop is provided at the lower part of the microporous filter (10) to block and restrict the partition door from moving upward.

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