CN219431882U - Mining blowout prevention device - Google Patents
Mining blowout prevention device Download PDFInfo
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- CN219431882U CN219431882U CN202320394743.6U CN202320394743U CN219431882U CN 219431882 U CN219431882 U CN 219431882U CN 202320394743 U CN202320394743 U CN 202320394743U CN 219431882 U CN219431882 U CN 219431882U
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Abstract
The utility model provides a mining blowout prevention device, which comprises a material distribution cylinder, wherein two ends of the material distribution cylinder are opened, and a primary extraction opening and a slag water extraction opening are arranged on the outer wall of the material distribution cylinder; one end of the material receiving pipe is provided with an inclined opening, one end of the material receiving pipe is hermetically arranged on the material distributing cylinder, and the outer wall of the end of the material receiving pipe is provided with a sealing sleeve; the gas cache box is provided with a negative pressure exhaust pipe and is connected with the primary exhaust port through a pipeline; the slag-water separation box is connected with the slag-water extraction port through a pipeline, and an overflow port is arranged on the side wall of the slag-water separation box; the bearing seat is arranged at the other end of the material distributing cylinder in a sealing way, and a drill rod hole is formed in the center of the bearing seat; the utility model adopts the negative pressure drainage pipeline, has good gas drainage effect and outstanding dust settling effect, can separate gas, water and slag, respectively transport and prevent the blockage of a gas pipe or a water pipe, and can seal the drilled hole by the sealing sleeve arranged on the material collecting pipe, thereby eliminating the phenomenon of 'jet holes' in the drilling process.
Description
Technical Field
The utility model relates to a mining blowout prevention device.
Background
More and more coal mines are required to develop themselves to begin to mine coal seams with high gas content and easy outburst, and a large amount of harmful substances such as gas mixed gas, coal cinder and dust can be sprayed out in the drilling process, so that potential safety hazards such as mine gas overrun, outburst and injury to people by 'spray holes' are caused. The common ventilation and slag discharge method can not meet the gas drainage requirement of high gas and easy to protrude mine drilling holes, and can seriously harm the safety production of mines and the life safety of operators. Therefore, effective measures must be taken to prevent the "jet holes" from hurting people and gas overrun during the drilling process.
The anti-spraying hole and dust removing device used in many mines has complex structure, poor anti-explosion performance and large volume, and the roadway is very narrow in usable space except for the space occupied by a drilling machine, a belt conveyor and a track, and the device with large volume has poor adaptability. The individual blowout prevention dust removal device is simple in structure, small in size and convenient to operate, but poor in tightness, limited in blowout prevention hole and dust removal effect, production efficiency is affected, life safety of operators is threatened, and the gas extraction drilling closed blowout prevention hole device disclosed by publication No. CN203856499U is provided with a separation device and a collection pipe sleeve to treat substances such as gas and dust on a drill rod, but the collection pipe and the coal bed are not sealed, gas and dust can leak in the working space of the operators through gaps between the collection pipe and the coal bed, and the situation of gas protrusion and 'jet hole' is not provided with a corresponding treatment structure, so that the gas protrusion and 'jet hole' cannot be handled, and the safety of the operators cannot be ensured.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a mining blowout prevention device.
The utility model is realized by the following technical scheme.
The utility model provides a mining blowout prevention device, which comprises; the two ends of the material distributing cylinder are open, and a primary extraction opening and a slag water extraction opening are arranged on the outer wall of the material distributing cylinder; one end of the material receiving pipe is provided with an inclined opening, one end of the material receiving pipe is arranged on the material distributing cylinder in a sealing way, and a sealing sleeve is arranged on the outer wall of the end of the material receiving pipe; the gas cache box is provided with a negative pressure exhaust pipe and is connected with the primary exhaust port through a pipeline; the slag-water separation box is connected with the slag-water extraction port through a pipeline, and the side wall of the slag-water separation box is provided with an overflow port; the bearing seat is arranged at the other end of the material distributing cylinder in a sealing way, and a drill rod hole is formed in the center of the bearing seat; the drill rod sequentially passes through the drill rod hole, the material distributing cylinder and the material collecting pipe, and the end head of the drill rod extends out of the material collecting pipe.
The primary extraction opening and the slag water extraction opening are respectively arranged at the top and the bottom of the material distributing cylinder, and the primary extraction opening and the slag water extraction opening are not opposite.
The primary extraction opening and the slag water extraction opening are flange interfaces.
The front flanges of the material distributing cylinders and the rear flanges of the material distributing cylinders are respectively connected with the material collecting pipe and the bearing seat.
And a sealing ring and a second sealing plate are respectively arranged between the front flange of the material distributing cylinder and the rear flange of the material distributing cylinder and the material receiving pipe and the bearing seat.
The front flange of the material distributing cylinder is arranged at the lower edge of the opening of the material distributing cylinder, and a gasket is arranged between the front flange of the material distributing cylinder and the sealing ring.
The inner end of the second sealing plate is sequentially provided with a first sealing plate and a blowout prevention plate, and the first sealing plate and the blowout prevention plate are arranged in the material distributing barrel.
Drill rod holes are formed in the centers of the blowout prevention plate, the first sealing plate and the second sealing plate.
The bearing seat is characterized in that a circular groove is further formed in the center of the bearing seat, a bearing is arranged in the circular groove, and a bearing cover is arranged at the top end of the circular groove.
The top of the slag-water separation box is also connected with the gas cache bag through a pipeline, and the slag-water separation box is also connected with the gas cache box through a pipeline.
The utility model has the beneficial effects that: the negative pressure pumping pipeline is adopted, the pumping effect is good, the dust settling effect is outstanding, gas, water and slag can be separated, the gas pipe or the water pipe can be prevented from being blocked by transportation respectively, the sealing sleeve arranged on the material collecting pipe can block a drilled hole, and the phenomenon of 'spray holes' in the drilling process is eliminated.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of an embodiment of the present utility model;
in the figure: the drilling machine comprises a drilling rod 1, a material distributing cylinder 2, a material distributing cylinder front flange 21, a primary extraction opening 22, a slag water extraction opening 23, a blowout preventing plate 24, a first sealing plate 25, a material distributing cylinder rear flange 26, a second sealing plate 27, a material collecting pipe 3, a sealing sleeve 31, a material collecting pipe connecting flange 32, a sealing ring 33, a gas buffer tank 4, a slag water separating tank 5, an overflow opening 51, a secondary extraction pipe 6, a gas buffer bag 7, a negative pressure extraction pipe 8, a primary extraction pipe 9, a slag water extraction pipe 10, a coal seam 11, a drilling machine 12, a sealing ring 13, a bearing seat 14, a bearing seat 15, a bearing cover 16 and a drilling rod hole 17.
Detailed Description
The technical solution of the present utility model is further described below, but the scope of the claimed utility model is not limited to the above.
As shown in fig. 2, an embodiment of the present utility model includes:
the material distributing cylinder 2 is cylindrical, a material distributing cylinder front flange 21 is arranged on the outer wall of the front end of the material distributing cylinder 2, a material receiving pipe 3 is arranged at the front end of the material distributing cylinder 2 in a receiving way through the material distributing cylinder front flange 21 and a material receiving pipe connecting flange 32, and a sealing ring 33 is arranged between the material distributing cylinder front flange 21 and the material receiving pipe connecting flange 32; the rear end of the feed distributing cylinder 2 is provided with a feed distributing cylinder rear flange 26, the bearing seat 14 is arranged at the rear end of the feed distributing cylinder through butt joint of the feed distributing cylinder rear flange 26 and a flange structure at the bottom of the bearing seat, a second sealing plate 27 is arranged between the feed distributing cylinder rear flange 26 and the bearing seat 14, when the feed distributing cylinder is sleeved on the drill rod 1, a gap is reserved between the drill rod 1 and the material collecting pipe 3, dust, cinder, water and gas caused in the drilling process of the drill rod can enter the feed distributing cylinder, the rear end of the feed distributing cylinder 2 is sealed with the outer wall of the drill rod 1 through the second sealing plate 27, and the damage to workers caused by dust, cinder, water and gas leakage is prevented.
As shown in fig. 1, a primary air extracting opening 22 and a slag water extracting opening 23 are arranged on the outer wall of the feed separating barrel 2, the air extracting opening 22 is connected with a primary air extracting pipe 9, the other end of the air extracting pipe 9 is connected to the top of a gas buffer tank 4 in sequence, the top of the gas buffer tank is connected with a negative pressure air extracting pipe 8, the negative pressure air extracting pipe is connected with a negative pressure fan and other devices, so that the air extracting opening 22 forms negative pressure to extract the gas entering the feed separating barrel 2 into the gas buffer tank 4, and the gas is conveyed out of a mine through the negative pressure air extracting pipe; the slag-water extraction port 23 is connected to the upper part of the slag-water separation tank 5 through a slag-water extraction pipe 10, and the dust, coal slag and water in the feed cylinder 2 are input into the slag-water separation tank 5 for sedimentation, so that the dust and the coal slag are settled at the bottom of the slag-water separation tank, and when the accumulated water exceeds an overflow port 51 at the upper part of the slag-water separation tank 5, the slag-water separation tank 5 is left outside through the overflow port 51.
The inclined opening is arranged at one end of the collecting pipe 3 extending into the coal seam 11 to increase the collecting efficiency of the collecting pipe, so that the inlet area of the collecting pipe is enlarged.
Further, in order to make the gas entering the separating cylinder 2 be pumped away by the primary pumping hole 22 as much as possible, as shown in fig. 1, the primary pumping hole 22 is arranged at the top of the separating cylinder 2 and at the front end position of the separating cylinder 2, the gas entering the separating cylinder is pumped as soon as possible, and the slag water pumping hole 23 is arranged at the bottom of the separating cylinder and at the rear end position thereof, and the substances such as water, dust and the like entering the separating cylinder are easy to fall down and flow or slide in the separating cylinder for a period of time, so that the gas with slag is pumped as much as possible.
In order to ensure the air tightness between the pipelines, the primary extraction opening 22 and the slag water extraction opening 23 are flange interfaces, and sealing rings are arranged between the flange interfaces.
In order to ensure the tightness between the feed distributing cylinder 2 and the material receiving pipe, the feed distributing cylinder front flange 21 is arranged at the lower edge of the opening of the feed distributing cylinder 2, and a gasket 13 is arranged between the feed distributing cylinder front flange 21 and the sealing ring 33, when the feed distributing cylinder 2 is in butt joint with the flange on the material receiving pipe 3, the gasket 13 is sleeved on the outer edge of the opening of the feed distributing cylinder 2, so that a certain gap is reserved at the locking position of an extension bolt of the flange, deformation is found in the gap between the flanges, the deformed flange can further squeeze the gasket and the sealing ring, the contact between the feed distributing cylinder opening and the sealing ring is tighter, and the sealing effect is better.
In order to prevent the second sealing plate 27 from being damaged due to the impact of dust, cinder and other solids when the spray holes are formed, the rear end of the feed distributing cylinder 2 is sequentially provided with a blowout preventing plate 24 and a first sealing plate 25, the blowout preventing plate is a hard plate and can block the solids and impact force with relatively large volumes, the first sealing plate 25 and the second sealing plate 27 are made of the same materials, and the solids and gas with small volumes which are extruded by high pressure are blocked before the second sealing plate 27, so that the pressure borne by the second sealing plate 27 is not too high all the time, and the harmful gases such as dust and gas are ensured not to overflow to cause injury to workers.
Further, in order to reduce the friction between the drill rod and the material distributing cylinder 2, the service lives of the material distributing cylinder 2 and the drill rod 1 are too short, a circular groove is further processed in the center of the bearing seat 14, a bearing 15 is installed in the circular groove, and a bearing cover 16 is installed at the top end of the circular groove.
In order to ensure that the material distributing cylinder has enough material distributing space, objects such as dust in the material collecting pipe 3 can be pushed by the drill rod, and the diameter of the material collecting pipe 3 is larger than that of the drill rod 1 and smaller than that of the material distributing cylinder 2.
As shown in fig. 2, in order to prevent the situation of gas outburst, the extraction speed of the primary extraction opening cannot reach the extraction requirement, the top of the slag-water separation tank 5 is further connected with the gas buffer bag 7 through a pipeline, the gas generated during gas outburst shares the pressure of the gas buffer tank by the gas buffer bag 7, and after the gas outburst, the gas is extracted into the gas buffer tank 4 through the secondary extraction pipe between the slag-water separation tank 5 and the gas buffer tank.
Claims (10)
1. A mining blowout preventer, comprising:
the two ends of the material distributing cylinder (2) are open, and a primary extraction opening (22) and a slag water extraction opening (23) are arranged on the outer wall of the material distributing cylinder (2);
one end of the material receiving pipe (3) is provided with an inclined opening, the other end of the material receiving pipe (3) is arranged on the material distributing cylinder (2) in a sealing way, and the outer wall of the end of the material receiving pipe is provided with a sealing sleeve (31);
the gas buffer storage box (4), a negative pressure exhaust pipe (8) is arranged on the gas buffer storage box (4), and the gas buffer storage box is connected with a primary exhaust opening (22) through a pipeline;
the slag-water separation box (5) is connected with the slag-water extraction port (23) through a pipeline, and an overflow port (51) is arranged on the side wall of the slag-water separation box (5);
the bearing seat (14) is hermetically arranged at the other end of the material distributing cylinder (2), and a drill rod hole (17) is formed in the center of the bearing seat (14);
the drill rod (1), drill rod (1) passes drilling rod hole (17), feed cylinder (2), receiving pipe (3) in proper order, and the end of drill rod (1) stretches out outside receiving pipe (3).
2. The mining blowout preventer of claim 1, wherein: the primary extraction opening (22) and the slag water extraction opening (23) are respectively arranged at the top and the bottom of the material separating barrel (2), and the primary extraction opening (22) and the slag water extraction opening (23) are not opposite.
3. The mining blowout preventer of claim 2, wherein: the primary extraction opening (22) and the slag water extraction opening (23) are flange interfaces.
4. The mining blowout preventer of claim 1, wherein: the outer walls of the two ends of the material distributing cylinder (2) are respectively provided with a material distributing cylinder front flange (21) and a material distributing cylinder rear flange (26), and the material distributing cylinder front flange (21) and the material distributing cylinder rear flange (26) are respectively connected with the material collecting pipe (3) and the bearing seat (14).
5. The mining blowout preventer of claim 4, wherein: a sealing ring (33) and a second sealing plate (27) are respectively arranged between the front flange (21) and the rear flange (26) of the material distributing cylinder, the material receiving pipe (3) and the bearing seat (14).
6. The mining blowout preventer of claim 5, wherein: the front flange (21) of the material distributing cylinder is arranged at the lower edge of the opening of the material distributing cylinder (2), and a gasket (13) is arranged between the front flange (21) of the material distributing cylinder and the sealing ring (33).
7. The mining blowout preventer of claim 5, wherein: the inner end of the second sealing plate (27) is sequentially provided with a first sealing plate (25) and a blowout prevention plate (24), and the first sealing plate (25) and the blowout prevention plate (24) are arranged in the feed distributing cylinder (2).
8. The mining blowout preventer of claim 7, wherein: drill rod holes (17) are formed in the centers of the blowout prevention plate (24), the first sealing plate (25) and the second sealing plate (27).
9. The mining blowout preventer of claim 1, wherein: the center of the bearing seat (14) is also provided with a circular groove, a bearing (15) is arranged in the circular groove, and a bearing cover (16) is arranged at the top end of the circular groove.
10. The mining blowout preventer of claim 1, wherein: the top of the slag-water separation box (5) is also connected with a gas buffer bag (7) through a pipeline, and the slag-water separation box (5) is also connected with the gas buffer box through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320394743.6U CN219431882U (en) | 2023-03-06 | 2023-03-06 | Mining blowout prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320394743.6U CN219431882U (en) | 2023-03-06 | 2023-03-06 | Mining blowout prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219431882U true CN219431882U (en) | 2023-07-28 |
Family
ID=87335889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320394743.6U Active CN219431882U (en) | 2023-03-06 | 2023-03-06 | Mining blowout prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219431882U (en) |
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2023
- 2023-03-06 CN CN202320394743.6U patent/CN219431882U/en active Active
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