CN213392252U - Pneumatic filling device for coal mine goaf - Google Patents
Pneumatic filling device for coal mine goaf Download PDFInfo
- Publication number
- CN213392252U CN213392252U CN202022074664.6U CN202022074664U CN213392252U CN 213392252 U CN213392252 U CN 213392252U CN 202022074664 U CN202022074664 U CN 202022074664U CN 213392252 U CN213392252 U CN 213392252U
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- gas
- filling device
- stirring bin
- feed hopper
- coal mine
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Abstract
The utility model relates to a pneumatic filling device in coal mine collecting space area has solved the colliery when filling and mining, and conventional filling machine can not be applicable to the problem of gas working condition. The device is including feeder hopper, stirring storehouse and the gas material room that from top to bottom connects gradually the setting, installs the stirring vane wheel in the stirring storehouse, and the stirring vane wheel is rotatory by pneumatic motor drive, is provided with the bottom plate of slope in the gas material room, is connected with intake pipe and the discharging pipe of next-door neighbour's setting about being connected with on the lateral wall of gas material room. The utility model discloses filling device design science, rational in infrastructure, convenient to use, operation are stable, the pay-off is effectual, compare with the filling device of motor as the power supply, the utility model discloses filling device can adapt to complicated borehole operation environment such as high gas, uses the restriction that does not receive gas concentration, has reduced the gas and has aroused the possibility of explosion, has improved the security of borehole operation.
Description
Technical Field
The utility model relates to a coal mine production technical field specifically is a pneumatic filling device in coal mine collecting space area.
Background
The backfilling can well restrain the ground surface collapse phenomenon of the mining area, and the coal mine roadway filling machine is important equipment for backfilling the coal mine roadway. During filling, the filling material is conveyed into a coal mine tunnel, and then the material is thrown to a filling area through a coal mine tunnel filling machine for filling. At present, the conventional filling machine adopts an electric motor as a power source, can meet the use requirements of most underground working conditions, but cannot be used under the working conditions with high underground methane concentration. In the coal mine safety regulations published by the coal industry publishers (2016 edition), the one hundred and seventy-third: when the methane concentration in the wind current reaches 1.5% within 20m of the wind current of the excavation working face and other operation places and the installation place of the motor or a switch thereof, the work is stopped, the power supply is cut off, and the personnel are withdrawn for treatment. The common filling operation site is positioned in the return air flow of the stope face, and the place where gas is gathered is easy to cause the gas concentration to exceed the limit, and after the limit is exceeded, the methane electric locking of the working face (the first hundred and sixty-eighteen items of coal mine safety regulations, namely a methane sensor is arranged in the return air flow of underground individual electromechanical equipment and is required to be installed and realize the methane electric locking) can cut off the power supply of all non-intrinsic safety type electric equipment in the area and lock the equipment. Therefore, the motor is used as a power source, can meet the requirements of most underground working conditions, but is not suitable for the working conditions with high underground methane concentration.
Disclosure of Invention
The utility model aims at providing a pneumatic filling device in coal mine goaf in order to solve the problem that the conventional filling machine can not be applicable to the gas working condition during the filling and mining of colliery. The utility model discloses the device is with compressed air as the power supply, therefore the use of adaptation high gas operating mode and other general operating modes that can be fine.
The utility model discloses a realize through following technical scheme:
a pneumatic filling device for a coal mine goaf comprises a feed hopper, a stirring bin and a gas chamber which are sequentially arranged from top to bottom;
the feed hopper is in an inverted round table shape, the top of the feed hopper is provided with a feed inlet, and the bottom of the feed hopper is provided with a discharge outlet;
the stirring bin is in a horizontal round table shape, the top of the side wall of the stirring bin is provided with a feeding hole, the bottom of the side wall is provided with a discharging hole, and the feeding hole at the top of the side wall is communicated with the discharging hole at the bottom of the feeding hopper; a rotating shaft is arranged in the stirring bin along the axis of the stirring bin, and a transverse stirring vane wheel is arranged on the rotating shaft; one side of the stirring bin is fixedly provided with a transverse pneumatic motor through a flange, and the output end of the pneumatic motor is connected with the rotating shaft through a coupler;
the top of the gas material chamber is provided with a feeding hole, the feeding hole of the gas material chamber is connected and communicated with a discharging hole at the bottom of the stirring bin, an inclined bottom plate is arranged in the gas material chamber, the side wall of the gas material chamber is connected with a gas inlet pipe and a discharging pipe which are arranged in an upper-lower adjacent mode, and the gas inlet pipe and the discharging pipe are located at the lowest position of the inclined bottom plate.
The utility model discloses the device is when using, in placing the feeder hopper with the stopping earlier, the stopping enters into the stirring storehouse along the feeder hopper in, the stirring vane wheel in the stirring storehouse is rotatory under pneumatic motor's drive, play the stirring, the effect of feeding, the stopping enters into in the gas charge room behind the stirring vane wheel, then glide along the bottom plate of slope, meanwhile, compressed air carries to the intake pipe through oil-water separator and gas circuit, utilize compressed air as power, discharge the stopping in the gas charge room from the discharging pipe and carry to the working face and fill the hydraulic support rear, thereby play the effect of maintaining the collecting space area.
As the preferred technical scheme, wear-resistant lining rubber is arranged on the inner wall of the connecting section of the feed outlet of the feed hopper and the feed inlet of the stirring bin. The main function of the wear-resistant lining rubber is to seal the stirring vane wheel in the stirring bin, so that the compressed air in the air material chamber keeps air pressure, and smooth discharging is ensured.
As the preferred technical scheme, a vibrating screen is arranged in the feed hopper. On one hand, the vibrating screen can uniformly vibrate the initial filler to ensure that the blanking is uniform and the blockage is prevented; on the other hand, impurities in the filling material can be screened out, and blockage is prevented.
The utility model discloses filling device design science, rational in infrastructure, convenient to use, operation are stable, the pay-off is effectual, compare with the filling device of motor as the power supply, the utility model discloses filling device can adapt to complicated borehole operation environment such as high gas, uses the restriction that does not receive gas concentration, has reduced the gas and has aroused the possibility of explosion, has improved the security of borehole operation.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention in any way.
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-a feed hopper, 2-a stirring bin, 3-a gas chamber, 4-a vibrating screen, 5-wear-resistant lining rubber, 6-a rotating shaft, 7-a stirring vane wheel, 8-a pneumatic motor, 9-a bottom plate, 10-an air inlet pipe and 11-a discharge pipe.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the present invention will be further clearly and completely described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in figure 1, the pneumatic filling device for the coal mine goaf comprises a feed hopper 1, a stirring bin 2 and a gas chamber 3 which are sequentially arranged from top to bottom.
The feed hopper 1 is in an inverted round table shape, a feed inlet is formed in the top of the feed hopper 1, a discharge outlet is formed in the bottom of the feed hopper, and a vibrating screen 4 is installed in the feed hopper 1.
The stirring bin 2 is in a horizontal round table shape, the top of the side wall of the stirring bin is provided with a feeding hole, the bottom of the side wall is provided with a discharging hole, the feeding hole at the top of the side wall is communicated with the discharging hole at the bottom of the feeding hopper 1, and the inner wall of the connecting section is provided with a wear-resistant lining rubber 5; a rotating shaft 6 which can rotate freely is arranged in the stirring bin 2 along the axis of the stirring bin through a bearing, a transverse stirring vane wheel 7 is arranged on the rotating shaft 6 through a flat key, and the shape of the stirring vane wheel 7 is also a transverse circular truncated cone and is matched with the shape of the inner space of the stirring bin 2; a transverse pneumatic motor 8 is fixedly installed on one side of the stirring bin 2 through a flange, an output shaft of the pneumatic motor 8 is connected with a coupler, and the other end of the coupler is connected with the rotating shaft 6; the pneumatic motor 8 can drive the rotating shaft 6 to rotate, so as to drive the stirring blade wheel 7 to rotate; an air pipe joint is arranged on the pneumatic motor 8 and is used for connecting an air supply pipeline; the pneumatic motor 8 is also provided with a manual switch and a pressure control valve, the manual switch can open or close the air supply pressure, and the air pressure can be adjusted according to the pressure gauge.
The top of gas feed chamber 3 is provided with the feed inlet to the feed inlet of gas feed chamber 3 is connected with the discharge gate of stirring storehouse 2 bottom and is communicated with each other, is provided with inclined bottom plate 9 in the gas feed chamber 3, is connected with intake pipe 10 and the discharging pipe 11 of upper and lower next-door neighbour's setting on the lateral wall of gas feed chamber 3, and intake pipe 10 and discharging pipe 11 are located the lowest of inclined bottom plate 9. The manometer and the relief pressure valve are equipped with on the gas circuit of connection intake pipe 10, and the manometer is used for keeping watch on the work wind pressure, when the manometer value exceeded the maximum value of work wind pressure, indicates promptly that discharging pipe 11 blocks up, and the relief pressure valve action should be unloaded unnecessary pressure this moment, and personnel should shut down immediately, dredges, and the pressure release of relief pressure valve can prevent that personnel from dredging in-process filler blowout suddenly. The pressure gauge is interlocked with a pressure control valve on the pneumatic motor 8, and when the discharge pipe 11 is blocked, the air supply of the pneumatic motor can be automatically closed.
The technical solutions in the embodiments of the present invention have been clearly and completely described above, and the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Claims (3)
1. The utility model provides a pnematic filling device of coal mine collecting space area which characterized in that: comprises a feed hopper, a stirring bin and a gas chamber which are arranged from top to bottom in sequence;
the feed hopper is in an inverted round table shape, the top of the feed hopper is provided with a feed inlet, and the bottom of the feed hopper is provided with a discharge outlet;
the stirring bin is in a horizontal round table shape, the top of the side wall of the stirring bin is provided with a feeding hole, the bottom of the side wall is provided with a discharging hole, and the feeding hole at the top of the side wall is communicated with the discharging hole at the bottom of the feeding hopper; a rotating shaft is arranged in the stirring bin along the axis of the stirring bin, and a transverse stirring vane wheel is arranged on the rotating shaft; one side of the stirring bin is fixedly provided with a transverse pneumatic motor through a flange, and the output end of the pneumatic motor is connected with the rotating shaft through a coupler;
the top of the gas material chamber is provided with a feeding hole, the feeding hole of the gas material chamber is connected and communicated with a discharging hole at the bottom of the stirring bin, an inclined bottom plate is arranged in the gas material chamber, the side wall of the gas material chamber is connected with a gas inlet pipe and a discharging pipe which are arranged in an upper-lower adjacent mode, and the gas inlet pipe and the discharging pipe are located at the lowest position of the inclined bottom plate.
2. The pneumatic filling device of coal mine goaf according to claim 1, characterized in that: and the inner wall of the connecting section of the feed hopper discharge port and the stirring bin feed port is provided with wear-resistant lining rubber.
3. The pneumatic filling device of coal mine goaf according to claim 1, characterized in that: a vibrating screen is arranged in the feed hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022074664.6U CN213392252U (en) | 2020-09-21 | 2020-09-21 | Pneumatic filling device for coal mine goaf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022074664.6U CN213392252U (en) | 2020-09-21 | 2020-09-21 | Pneumatic filling device for coal mine goaf |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213392252U true CN213392252U (en) | 2021-06-08 |
Family
ID=76179951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022074664.6U Expired - Fee Related CN213392252U (en) | 2020-09-21 | 2020-09-21 | Pneumatic filling device for coal mine goaf |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213392252U (en) |
-
2020
- 2020-09-21 CN CN202022074664.6U patent/CN213392252U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210608 |