Coal mine gas extraction drilling dust fall device
By introducing borehole drainage pipes, conveying pipes, and auxiliary cleaning components into the coal mine gas drainage drilling device, the problem of impurity accumulation was solved, and efficient dust suppression and gas extraction were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-27
AI Technical Summary
Existing dust suppression devices for coal mine gas drainage boreholes are unable to remove impurities from the filtered dust in a timely manner, causing impurities to accumulate on the filter screen surface, clogging the mesh, affecting the dust suppression effect and interfering with gas drainage.
A dust suppression device for coal mine gas extraction boreholes was designed, comprising a borehole extraction pipe, a conveying pipe, a filter cylinder, an impurity discharge pipe, and auxiliary cleaning components. Impurities are quickly discharged through the impurity discharge pipe, and impurities on the inner wall of the filter cylinder are cleaned using a combination structure of a tie rod and a collision plate.
It effectively prevents the accumulation of impurities, maintains the high efficiency of the filter screen, and improves the efficiency of gas extraction and dust reduction.
Smart Images
Figure CN224049259U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to coal mining equipment technical field, concretely is a coal mine gas extraction drilling dust falling device. BACKGROUND
[0002] Coal mine gas extraction is to drill to coal seam and gas gathering area, connect the drilling hole to the special pipeline, use the extraction equipment to extract the gas in coal seam and goaf to the ground, utilize, or discharge to the total return air flow.
[0003] Extraction gas is not only the important measure of reducing gas emission in the mining process, preventing gas overrun and accumulation, preventing gas explosion and coal and gas outburst accident, but also can change harm into benefit, as the resource of coal exploitation and utilization.
[0004] And in the actual extraction of coal mine gas, since the extraction of coal mine gas is to connect the extraction pipe into the pipeline inserted in the drilling hole to extract the gas in the coal mine, and then dust falling operation is needed in the extraction process, but the existing dust falling device for coal mine gas extraction drilling hole is difficult to discharge the impurities in the filtered dust in time in actual use, and then the impurities are easy to accumulate on the surface of the filter screen, causing the blockage of the mesh, affecting the normal dust falling effect, and also affecting the extraction of gas. UTILITY MODEL CONTENT
[0005] In view of the defects of the prior art, the utility model provides a coal mine gas extraction drilling dust falling device, solves the problem that the existing dust falling device for coal mine gas extraction drilling hole is difficult to discharge the impurities in the filtered dust in time in actual use, and then the impurities are easy to accumulate on the surface of the filter screen, causing the blockage of the mesh, affecting the normal dust falling effect, and also affecting the extraction of gas.
[0006] The utility model provides the following technical scheme: a coal mine gas extraction drilling dust falling device, including coal mine base layer, the coal mine base layer is opened coal mine drilling hole, the top of coal mine drilling hole is provided with drilling hole extraction pipeline, the top of drilling hole extraction pipeline is connected with conveying pipeline, the top of coal mine base layer is provided with gas dust falling assembly, the auxiliary cleaning assembly is provided on gas dust falling assembly;
[0007] The gas dust falling assembly comprises a dust falling cylinder arranged on the top of the coal mine base, a filter screen cylinder is arranged in the dust falling cylinder, the end of the conveying pipeline penetrates through the dust falling cylinder and the filter screen cylinder, the outer side of the filter screen cylinder is fixedly connected with the inner wall of the dust falling cylinder through two groups of symmetrically arranged side edge connecting rods, the bottom end of the filter screen cylinder is communicated with an impurity discharge pipe, the bottom end of the impurity discharge pipe penetrates through the bottom of the dust falling cylinder, a valve is arranged on the impurity discharge pipe, the top end of the dust falling cylinder is provided with a top exhaust pipe, and two bottom supporting legs are symmetrically arranged at the bottom end of the dust falling cylinder.
[0008] The auxiliary cleaning assembly comprises a side edge connecting block arranged on the side edge of the dust falling cylinder, a pull rod is slidably and penetratingly arranged on the side edge connecting block, the end of the pull rod extends to the side edge of the filter screen cylinder, a collision plate is arranged at the end of the pull rod, and a connecting spring is sleeved on the rod body of the pull rod.
[0009] The one end of the connecting spring is connected with the outer wall of the dust falling cylinder, and the other end of the connecting spring is connected with the rod body of the pull rod.
[0010] The bottom end of the impurity discharge pipe is in a trumpet shape.
[0011] The impurities discharged through the impurity discharge pipe can fall faster.
[0012] The pull rod and the side edge connecting block are provided with a sealing gasket at the joint.
[0013] The sealing strength between the pull rod and the dust falling cylinder can be effectively increased.
[0014] The side surface of the collision plate is uniformly provided with a plurality of rubber blocks.
[0015] The collision plate can protect the side wall of the filter screen cylinder when the collision plate collides with the side wall of the filter screen cylinder.
[0016] Compared with the prior art, the coal mine gas extraction drilling dust falling device has the following beneficial effects:
[0017] (1) The drilling extraction and discharge pipeline is arranged on the coal mine drilling hole, the conveying pipeline is connected to the drilling extraction and discharge pipeline, the end of the conveying pipeline is inserted into the filter screen cylinder, the gas extracted from the filter screen cylinder is discharged through the top exhaust pipe, the impurities contained in the extracted gas are treated by dust falling, the filtered impurities can be quickly discharged through the impurity discharge pipe communicated with the bottom of the filter screen cylinder, the accumulation of the impurities is avoided, the filtering effect of the filter screen cylinder is always in an efficient state, and the extraction efficiency of the coal mine gas is higher. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0020] Figure 3 For the present utility model Figure 2 Enlarged structural view of the drainage pipeline in the borehole;
[0021] Figure 4 For the present utility model Figure 2 Enlarged view of the structure of the middle filter screen cylinder.
[0022] In the diagram: 1. Coal mine base; 2. Coal mine borehole; 3. Borehole drainage pipeline; 4. Conveying pipeline; 5. Gas dust suppression system; 6. Auxiliary cleaning system;
[0023] 501. Dust settling cylinder; 502. Filter screen cylinder; 503. Side connecting rod; 504. Impurity discharge pipe; 505. Valve; 506. Top exhaust pipe; 507. Bottom support leg;
[0024] 601. Side connecting block; 602. Pull rod; 603. Collision plate; 604. Connecting spring. Detailed Implementation
[0025] Please see Figures 1-4 ,
[0026] Example 1: A coal mine gas extraction borehole dust suppression device includes a coal mine base 1, a coal mine borehole 2 is formed on the coal mine base 1, a borehole extraction pipe 3 is provided at the top of the coal mine borehole 2, a conveying pipe 4 is connected to the top of the borehole extraction pipe 3, a gas dust suppression component 5 is provided at the top of the coal mine base 1, and an auxiliary cleaning component 6 is provided on the gas dust suppression component 5.
[0027] The gas dust suppression assembly 5 includes a dust suppression cylinder 501 installed on top of the coal mine base 1. A filter cylinder 502 is installed inside the dust suppression cylinder 501. The end of the conveying pipe 4 passes through the dust suppression cylinder 501 and the filter cylinder 502. The outer side of the filter cylinder 502 is fixedly connected to the inner wall of the dust suppression cylinder 501 by two sets of symmetrically arranged side connecting rods 503. The bottom end of the filter cylinder 502 is connected to an impurity discharge pipe 504. The bottom end of the impurity discharge pipe 504 passes through the bottom of the dust suppression cylinder 501. A valve 505 is installed on the impurity discharge pipe 504. A top exhaust pipe 506 is installed at the top of the dust suppression cylinder 501. Two bottom support legs 507 are symmetrically arranged on both sides of the bottom end of the dust suppression cylinder 501.
[0028] The auxiliary cleaning assembly 6 comprises a side connecting block 601 arranged at the side of the dust falling cylinder 501, a pull rod 602 is slidably and penetratingly arranged on the side connecting block 601, the end of the pull rod 602 extends to the side of the filter screen cylinder 502, the end of the pull rod 602 is provided with a collision plate 603, a connecting spring 604 is sleeved on the rod body of the pull rod 602, one end of the connecting spring 604 is connected with the outer wall of the dust falling cylinder 501, and the other end of the connecting spring 604 is connected with the rod body of the pull rod 602.
[0029] In the embodiment two, the bottom end of the impurity discharging pipe 504 is in a trumpet shape.
[0030] The impurities discharged through the impurity discharging pipe 504 can fall faster.
[0031] In the embodiment three, a sealing gasket is arranged at the joint of the pull rod 602 and the side connecting block 601.
[0032] The sealing strength between the pull rod 602 and the dust falling cylinder 501 is effectively increased.
[0033] In the embodiment four, a plurality of rubber blocks are uniformly arranged on the side of the collision plate 603.
[0034] When the collision plate 603 collides with the side wall of the filter screen cylinder 502, the side wall of the filter screen cylinder 502 is protected.
[0035] In the embodiment, in actual use, the existing dust falling device for coal mine gas extraction drilling hole cannot discharge the impurities in the filtered dust in time, so that the impurities are easily accumulated on the surface of the filter screen, the mesh hole is blocked, the normal dust falling effect is affected, and the gas extraction is also affected.
[0036] In summary, when the user needs to extract the gas in the coal mine drilling hole 2 through the external suction pump connected to the top exhaust pipe 506, the gas in the coal mine drilling hole 2 enters the gas dust falling assembly 5 through the conveying pipeline 4, the filter screen cylinder 502 in the gas dust falling assembly 5 can filter the impurities contained in the gas entering the conveying pipeline 4, the filtered impurities are stored in the filter screen cylinder 502, the filtered gas enters the dust falling cylinder 501 through the filter screen cylinder 502, and then is discharged through the top exhaust pipe 506, and the impurities accumulated in the filter screen cylinder 502 can fall into the impurity discharging pipe 504, and the valve 505 is opened, so that the impurities accumulated in the filter screen cylinder 502 can be quickly discharged, thereby avoiding that too many impurities are accumulated in the filter screen cylinder 502 to affect the normal filtering efficiency.
[0037] And the impurities adhered to the inner wall of the filter screen cylinder 502, the user can also pull the pull rod 602 in the auxiliary cleaning assembly 6, so that the connecting spring 604 connected on the pull rod 602 is stretched, and the elastic force of the connecting spring 604 pushes the pull rod 602 and the impact plate 603 to collide with the outer wall of the filter screen cylinder 502, thereby colliding and shaking off the impurities on the inner wall of the filter screen cylinder 502, achieving the cleaning effect of the impurities adhered to the filter screen cylinder 502, and ensuring that the filtered impurities in the filter screen cylinder 502 are effectively removed, which is more convenient for the user to use.
Claims
1. A coal mine gas extraction drilling hole dust falling device, comprising a coal mine base layer (1), characterized in that: The coal mine base (1) is provided with a coal mine drill hole (2), the top of the coal mine drill hole (2) is provided with a drill hole pumping pipeline (3), the top of the drill hole pumping pipeline (3) is communicated with a conveying pipeline (4), the top of the coal mine base (1) is provided with a gas dust falling assembly (5), the gas dust falling assembly (5) is provided with an auxiliary cleaning assembly (6); The gas dust falling assembly (5) includes a dust falling cylinder (501) arranged on the top of the coal mine base (1), a filter screen cylinder (502) arranged in the dust falling cylinder (501), the end of the conveying pipeline (4) penetrates the dust falling cylinder (501) and the filter screen cylinder (502), the outer side of the filter screen cylinder (502) is fixedly connected with the inner wall of the dust falling cylinder (501) through two groups of symmetrically arranged side edge connecting rods (503), the bottom end of the filter screen cylinder (502) is communicated with an impurity discharge pipe (504), the bottom end of the impurity discharge pipe (504) penetrates the bottom of the dust falling cylinder (501), the impurity discharge pipe (504) is provided with a valve (505), the top end of the dust falling cylinder (501) is provided with a top exhaust pipe (506), two bottom support legs (507) are symmetrically arranged on the bottom end of the dust falling cylinder (501).
2. The coal mine gas extraction drilling dust falling device according to claim 1, characterized in that: The auxiliary cleaning assembly (6) includes a side edge connecting block (601) arranged on the side edge of the dust falling cylinder (501), a pull rod (602) slidingly penetrating the side edge connecting block (601) is arranged, the end of the pull rod (602) extends to the side edge of the filter screen cylinder (502), the end of the pull rod (602) is provided with a collision plate (603), a connecting spring (604) is sleeved on the rod body of the pull rod (602).
3. The coal mine gas extraction drilling dust falling device according to claim 2, characterized in that: One end of the connecting spring (604) is connected with the outer wall of the dust falling cylinder (501), and the other end of the connecting spring (604) is connected with the rod body of the pull rod (602).
4. The coal mine gas extraction drilling dust falling device according to claim 3, characterized in that: The bottom end of the impurity discharge pipe (504) is in a trumpet shape.
5. The coal mine gas extraction drilling dust falling device according to claim 4, characterized in that: A sealing gasket is arranged at the insertion joint of the pull rod (602) and the side edge connecting block (601).
6. The coal mine gas extraction drilling dust falling device according to claim 5, characterized in that: Rubber blocks are uniformly arranged on the side surface of the collision plate (603).