Coal mine gas extraction device with slag removal function

Abstract

The utility model discloses a coal mine gas extraction device with a slag removal function, and relates to the technical field of gas extraction. The coal mine gas extraction device with the slag removal function comprises a base, a shell is fixed to the top of the base, a lead screw is arranged on one side in the shell, a lifting plate is arranged on the lead screw in a threaded mode, a filter box is fixed to the top of the lifting plate, the top of the filter box communicates with a gas input pipe, a partition plate is fixed to the interior of the filter box, and a through hole is formed in the partition plate; a through hole is formed in the filter box, a filter screen is arranged in the through hole, a sealing plate is fixed to a front end opening of the filter box through a bolt, an extraction pipe is embedded in the sealing plate, gas extraction is facilitated, the filter screen is combined to filter the gas, dust and other impurities mixed in the gas are removed, and the purpose of slag removal is achieved; the filter screen can be cleaned conveniently, and the situation that the filter screen is blocked, and the gas extraction efficiency and the gas extraction effect are affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the gas extraction technical field, especially, relate to a coal mine gas extraction device with deslagging function. BACKGROUND

[0002] Gas is colorless, odorless, odorless gas, difficult to dissolve in water, not combustion also can not maintain respiration, reach certain concentration, can make people lack of oxygen asphyxia, also can take place combustion or explosion, gas explosion is one of the main disasters in coal mine. In coal mining, a large amount of gas will be produced, before mining, the coal seam needs to be drilled, then the gas extraction device is used to extract the gas in the mine hole.

[0003] At present, the existing gas extraction device lacks the corresponding deslagging function in the extraction process, because a large amount of dust and particulate matter are often mixed in the gas, if not treated, it will cause blockage of the device, affect the gas extraction efficiency, and easily damage the device, affect the service life of the device, part of the extraction device adopts the mode of setting filter head at the extraction port to filter the dust in the gas, after long time use, the filter head needs to be cleaned or replaced frequently by manual, the use effect is not good.

[0004] In view of the above problems, we propose a coal mine gas extraction device with deslagging function. Utility model content

[0005] Technical scheme

[0006] In order to solve the above technical problems, the utility model provides a kind of coal mine gas extraction device with deslagging function, including base, the base top is fixed with shell, the shell inside one side is provided with screw rod, the screw rod is screw set with lifting plate, the lifting plate top is fixed with filter box, the filter box top is communicated with gas input pipe, the filter box inside is fixed with baffle, the baffle is opened with through hole, the through hole is provided with filter screen, the filter box front port is fixed with sealing plate by bolt, the sealing plate is embedded with extraction pipe, the extraction pipe is connected with filter box inside lower layer, the filter box is provided with cleaning assembly, the cleaning assembly and filter screen are mutually matched.

[0007] The cleaning assembly comprises a volute, a turbofan, a supporting rod, a first bevel gear, a second bevel gear, a rotating rod and a cleaning brush, two volutes are oppositely arranged on both sides of the gas input pipe, and the bottom of the volute is fixedly connected with the top of the filter box, the volute is communicated with the gas input pipe, the turbofan is arranged in the volute, the supporting rod is rotationally connected with the volute, the turbofan is sleeved on the supporting rod, the front end of the left supporting rod penetrates through the front end surface of the left volute, the rear end of the right supporting rod penetrates through the rear end surface of the right volute, and the first bevel gear is arranged at one end of the supporting rod.

[0008] The rotating rods are rotationally arranged on the filter box, the lower ends of the rotating rods are rotationally connected with the partition plate, the rotating rods are diagonally arranged, the cleaning brush is sleeved on the outer side of the rotating rod, the brush part of the cleaning brush is matched with the filter screen, the second bevel gear is fixedly arranged on the upper end of the rotating rod, and the first bevel gear is engaged with the second bevel gear.

[0009] The gas output pipe is communicated with the gas output end of the extraction pump.

[0010] The bottom of the base is provided with a plurality of rollers, the extraction pipe is matched with the avoiding hole, and the lower end of the extraction pipe is threadedly provided with a protective cover with a hollow structure.

[0011] The servo motor is arranged on one side of the top of the shell, the output end of the servo motor is connected with the upper end of the lead screw, a guide rod is arranged on the side of the shell away from the lead screw, the guide rod penetrates through the lifting plate, and the lifting plate is in sliding fit with the guide rod.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The extraction pump, the connecting pipe, the flexible hose and the gas input pipe are matched, so that negative pressure is provided in the filter box, the extraction pipe is matched, the gas in the mine hole is extracted, the extracted gas is transported to the lower layer of the filter box, the dust and impurities mixed in the gas are filtered through the filter screen, the slag in the gas is removed, the slag removal function is provided in the extraction process of the existing gas extraction device, the dust and particles mixed in the gas are not treated, the device is blocked, the extraction efficiency of the gas is affected, the device is damaged, the service life of the device is affected, and the defects are solved.

[0014] The filtered gas is accumulated upward in the upper layer of the filter box, and is continuously transported upward under the action of negative pressure through the gas input pipe, the flexible hose, the connecting pipe and the extraction pump, and is finally output to the outside through the gas output pipe, so that the gas extraction is realized.

[0015] The dust or particles attached to the filter screen can be cleaned under the cooperation of the cleaning assembly and the filter screen, so that the dust or particles fall to the bottom of the inner cavity of the filter box, the filtering effect of the filter screen is ensured, the sealing plate and the filter box are connected and fixed through bolts, the dust or particles accumulated in the lower layer of the filter box can be cleaned uniformly, and the problem that the dust in the gas is filtered through the filter head arranged at the extraction port in some extraction devices, and the filter head needs to be cleaned or replaced frequently after long-time use is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 It is Figure 2 It is a structure schematic view of the section A-A;

[0019] Figure 4 It is Figure 1 It is an enlarged structure schematic view of the B;

[0020] Figure 5 It is Figure 3 It is an enlarged structure schematic view of the C;

[0021] Figure 6 It is a schematic view of the internal structure of the shell in the utility model;

[0022] Figure 7 It is Figure 6 It is a structure schematic view of another view angle;

[0023] Figure 8 It is a schematic view of the internal structure of the filter box in the utility model.

[0024] The markings in the attached diagram are as follows: 1. Base; 2. Outer shell; 3. Lead screw; 4. Lifting plate; 5. Filter box; 6. Gas input pipe; 7. Partition plate; 8. Filter screen; 9. Sealing plate; 10. Extraction pipe; 11. Vortex shell; 12. Turbine fan; 13. Support rod; 14. First bevel gear; 15. Second bevel gear; 16. Rotating rod; 17. Cleaning brush; 18. Extraction pump; 19. Connecting pipe; 20. Telescopic hose; 21. Gas output pipe; 22. Roller; 23. Clearance hole; 24. Servo motor; 25. Guide rod; 26. Protective cover. Detailed Implementation

[0025] This specific embodiment is a coal mine gas extraction device with slag removal function, such as... Figures 1-8 As shown, the coal mine gas extraction device with slag removal function includes a base 1, an outer shell 2 fixed to the top of the base 1, a screw rod 3 installed on one side inside the outer shell 2, a lifting plate 4 threaded onto the screw rod 3, a filter box 5 fixed to the top of the lifting plate 4, a gas input pipe 6 connected to the top of the filter box 5, a partition 7 fixed inside the filter box 5, a through hole on the partition 7, a filter screen 8 installed in the through hole, a sealing plate 9 fixed to the front end of the filter box 5 by bolts, an extraction pipe 10 embedded in the sealing plate 9, the extraction pipe 10 connected to the lower layer inside the filter box 5, a cleaning component installed on the filter box 5, the cleaning component cooperating with the filter screen 8.

[0026] The extraction pipe 10 facilitates the extraction of methane from the mine shaft and transports it to the lower layer of the filter box 5. The filter screen 8 filters out dust and other impurities mixed in the methane, achieving the purpose of removing slag from the methane. This solves the problem of existing methane extraction devices lacking corresponding slag removal functions during the extraction process. Since methane often contains a large amount of dust and particulate matter, if not treated, it will cause blockages in the device, affecting the extraction efficiency and easily damaging the device, thus shortening its service life. The filtered methane accumulates upwards in the upper layer of the filter box 5 and continues to flow through the methane input pipe 6. The upward conveying mechanism, in conjunction with the cleaning component and filter screen 8, facilitates the cleaning of dust or particulate matter adhering to the filter screen 8, causing it to fall to the bottom of the inner cavity of the filter box 5, thus ensuring the filtration effect of the filter screen 8. At the same time, the sealing plate 9 is connected and fixed to the filter box 5 with bolts, which facilitates the subsequent unified cleaning of dust or particulate matter accumulated in the lower layer inside the filter box 5. This solves the drawback of some extraction devices that use filter heads at the extraction port to filter dust and other substances in the gas, which require frequent manual cleaning or replacement of the filter heads after long-term use, resulting in poor performance.

[0027] The cleaning assembly comprises two vortex shells 11, a vortex fan 12, a supporting rod 13, a first bevel gear 14, a second bevel gear 15, two rotating rods 16 and a cleaning brush 17, the two vortex shells 11 are oppositely arranged at two sides of the gas input pipe 6, and the bottom of the vortex shell 11 is fixedly connected with the top of the filter box 5, the vortex shell 11 is communicated with the gas input pipe 6, the vortex fan 12 is arranged in the vortex shell 11, the supporting rod 13 is rotatably connected with the vortex shell 11, the vortex fan 12 is sleeved on the supporting rod 13, the front end of the left supporting rod 13 penetrates through the front end face of the left vortex shell 11, the rear end of the right supporting rod 13 penetrates through the rear end face of the right vortex shell 11, the first bevel gear 14 is arranged at one end of the outer side of the supporting rod 13, the two rotating rods 16 are rotatably arranged on the filter box 5, and the lower end of the rotating rod 16 is rotatably connected with the partition plate 7, the two rotating rods 16 are diagonally arranged, the cleaning brush 17 is sleeved on the outer side of the rotating rod 16, and the brush part of the cleaning brush 17 is matched with the filter screen 8, the second bevel gear 15 is fixed on the upper end of the rotating rod 16, and the first bevel gear 14 is engaged with the second bevel gear 15.

[0028] The extraction pump 18 is mounted on one side of the top of the shell 2, the air inlet end of the extraction pump 18 is communicated with a connecting pipe 19, the connecting pipe 19 extends to the inside of the shell 2 away from the extraction pump 18, a flexible hose 20 is communicated between the lower end of the connecting pipe 19 and the upper end of the gas input pipe 6, and the air outlet end of the extraction pump 18 is communicated with a gas output pipe 21.

[0029] The base 1 is provided with a plurality of rollers 22 at the bottom, the base 1 is provided with an avoiding hole 23 penetratingly arranged thereon, the extraction pipe 10 is matched with the avoiding hole 23, the lower end of the extraction pipe 10 is provided with a protective cover 26 with a hollow structure in a threaded manner, the lower end of the extraction pipe 10 is effectively protected by the protective cover 26 with a hollow structure, so that large particles of gravel cannot enter the extraction pipe 10.

[0030] The servo motor 24 is mounted on one side of the top of the shell 2, the output end of the servo motor 24 is connected with the upper end of the lead screw 3, the guiding rod 25 is arranged on the inside of the shell 2 away from the lead screw 3, the guiding rod 25 penetrates through the lifting plate 4, and the lifting plate 4 is slidably matched with the guiding rod 25, so as to limit and guide the lifting plate 4, and ensure the stability of the lifting plate 4 during the up-down movement, thereby ensuring the stability of the filter box 5 during the extraction of the gas.

[0031] Embodiment:

[0032] In use, first, under the action of the roller 22, the adjusting device moves to the appropriate position, after the device moves into position, start the servo motor 24, through the servo motor 24 drive screw 3 rotation, in the lifting plate 4 and screw 3 thread cooperation, combined with the lifting plate 4 and guide rod 25 sliding fit, adjust the lifting plate 4 stably downward, in turn drive the filter box 5 stably downward, until the extraction pipe 10 lower port through the avoidance hole 23, and extend into the mine hole;

[0033] At this time, start the extraction pump 18, through the extraction pump 18, connecting pipe 19, flexible hose 20 and gas input pipe 6, in the filter box 5 form negative pressure, combined with the extraction pipe 10, in turn realize the purpose of extraction of gas in the mine hole;

[0034] The extraction of gas through the extraction pipe 10 into the filter box 5 inside the lower layer, through the filter screen 8, the dust or particulate matter mixed in the gas is filtered, after filtration, the gas accumulated in the upper layer of the filter box 5, and through the gas input pipe 6 continue to go up in turn through the flexible hose 20, connecting pipe 19 and extraction pump 18, finally through the gas output pipe 21 output to the outside;

[0035] Wherein the gas into the gas input pipe 6 inside, impact on the turbofan 12, drive the turbofan 12 rotation, in turn drive the support rod 13 rotation, through the support rod 13 drive the first bevel gear 14 rotation, in the first bevel gear 14 and second bevel gear 15 meshing effect, combined with the rotating rod 16 and filter box 5 and the rotation connection of the baffle 7, drive the rotating rod 16 synchronous rotation, with the rotation of the rotating rod 16, drive the cleaning brush 17 rotation;

[0036] Wherein in the process of cleaning brush 17 rotation, when the brush part of the cleaning brush 17 through the filter screen 8, the dust and other impurities attached to the filter screen 8 are cleaned, the dust and other impurities cleaned down in the inside bottom of the filter box 5, realize the purpose of cleaning the filter screen 8, ensure the filtering effect of the filter screen 8 in the process of gas extraction, finally the sealing plate 9 together with the extraction pipe 10 from the filter box 5, unified treatment of the dust and other impurities accumulated in the inside bottom of the filter box 5, solve the existing gas extraction device in the extraction process, lack of corresponding deslagging function, because of the gas often mixed with a large amount of dust and particulate matter, if not handled, will cause the device to block, affect the extraction efficiency of gas, and easy to cause damage to the device, affect the service life of the device, at the same time, solve the part of the extraction device in the extraction port set filter head way, the dust in the gas is filtered, after a long time use, need manual cleaning or replacement of the filter head frequently, the use effect is not good.

[0037] It needs to be further explained that the mounting structure, connection mode or setting mode of each component in the utility model are common mechanical modes, and as long as the beneficial effects can be achieved, they can be implemented, and the extraction pump 18 and the servo motor 24 in the utility model are purchased on the market, and the person skilled in the art can install and use according to requirements.

[0038] Two rotating rods 16 are diagonally arranged with the center of the filter screen 8 as the center, so that the two cleaning brushes 17 pass through the top of the filter screen 8 in staggered intervals, so that the filter screen 8 is fully cleaned, and the phenomenon that the two cleaning brushes 17 collide during synchronous rotation of the two rotating rods 16 is effectively avoided.

[0039] All the technical features in the embodiment can be freely combined according to actual needs.

[0040] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the person skilled in the art can well understand and use the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A coal mine gas extraction device with deslagging function, comprising a base (1), characterized in that, The base (1) top fixed with shell (2), the shell (2) inside one side is provided with screw rod (3), the screw rod (3) is provided with lifting plate (4) on the thread, the lifting plate (4) top fixed with filter box (5), the filter box (5) top is communicated with gas input pipe (6), the filter box (5) inside fixed with baffle (7), the baffle (7) is opened with through -hole, the through -hole is provided with filter screen (8), the filter box (5) front end is fixed with sealing plate (9) through bolt, the sealing plate (9) is embedded with extraction pipe (10), the extraction pipe (10) is communicated with filter box (5) inside lower layer, the filter box (5) is provided with cleaning assembly, the cleaning assembly and filter screen (8) are mutually matched.

2. The coal mine gas extraction device with deslagging function according to claim 1, characterized in that, The cleaning assembly includes volute (11), vane (12), support rod (13), first bevel gear (14), second bevel gear (15), rotating rod (16) and cleaning brush (17), two the volute (11) is oppositely arranged on both sides of gas input pipe (6), and the volute (11) bottom is fixedly connected with the top of filter box (5), the volute (11) is communicated with gas input pipe (6), the vane (12) is arranged in the volute (11), the support rod (13) is rotatably connected with the volute (11), the vane (12) is sleeved on the support rod (13), the left support rod (13) front end penetrates the left volute (11) front end face, the right support rod (13) rear end penetrates the right volute (11) rear end face, the first bevel gear (14) is arranged on the outer side of one end of the support rod (13).

3. The coal mine gas extraction device with deslagging function according to claim 2, characterized in that, Two the rotating rod (16) are rotatably arranged on the filter box (5), and the lower end of the rotating rod (16) is rotatably connected with the baffle (7), two the rotating rod (16) are diagonally arranged, the cleaning brush (17) is sleeved on the outside of the rotating rod (16), and the brush part of the cleaning brush (17) is matched with the filter screen (8), the second bevel gear (15) is fixed on the upper end of the rotating rod (16), and the first bevel gear (14) is engaged with the second bevel gear (15).

4. The coal mine gas extraction device with deslagging function according to claim 3, characterized in that, The top of the shell (2) is provided with an extraction pump (18), the air inlet end of the extraction pump (18) is communicated with a connecting pipe (19), the connecting pipe (19) extends to the inside of the shell (2) away from the extraction pump (18), and the connecting pipe (19) is communicated with the extraction pump (18) between the upper end of the gas input pipe (6) and the lower end of the gas output pipe (21).

5. The coal mine gas extraction device with deslagging function according to claim 4, characterized in that, The bottom of the base (1) is provided with a plurality of rollers (22), the base (1) is provided with an avoiding hole (23), the extraction pipe (10) is matched with the avoiding hole (23), and the lower end of the extraction pipe (10) is provided with a protective cover (26) with a hollow structure.

6. The coal mine gas extraction device with deslagging function according to claim 5, characterized in that, The shell (2) top side is provided with a servo motor (24), the output end of the servo motor (24) is connected with the upper end of the lead screw (3), the inside of the shell (2) is provided with a guide rod (25) away from the lead screw (3), the guide rod (25) penetrates the lifting plate (4), and the lifting plate (4) is in sliding fit with the guide rod (25).

Images