CN110925007A - Working face air adjusting device for underground tunneling of coal mine - Google Patents
Working face air adjusting device for underground tunneling of coal mine Download PDFInfo
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- CN110925007A CN110925007A CN201911380898.9A CN201911380898A CN110925007A CN 110925007 A CN110925007 A CN 110925007A CN 201911380898 A CN201911380898 A CN 201911380898A CN 110925007 A CN110925007 A CN 110925007A
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- 230000005641 tunneling Effects 0.000 title claims abstract description 81
- 239000003245 coal Substances 0.000 title claims abstract description 62
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000002222 downregulating effect Effects 0.000 claims description 2
- 238000004378 air conditioning Methods 0.000 claims 9
- 238000009412 basement excavation Methods 0.000 claims 4
- 239000000428 dust Substances 0.000 abstract description 11
- 239000006185 dispersion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000003827 upregulation Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a working face air adjusting device for underground coal mine tunneling, which is characterized in that an upper air adjusting mechanism and a lower air adjusting mechanism are arranged, the upper part of the upper air adjusting mechanism blows air towards the lower part of the rear side of a tunneling tool bit in an inclined downward mode, the lower part of the upper air adjusting mechanism blows air towards the tunneling tool bit horizontally, and the lower air adjusting mechanism blows air horizontally towards the direction far away from the tunneling tool bit at the bottom of a tunnel, so that the air flow in front of the tunneling of the underground coal mine tunneling working face can be effectively circulated from top to bottom, the lower air adjusting mechanism enables the air flow to flow from the front to the back from the underground tunneling working face, the air flow at the tunneling working face is effectively ensured to flow and scatter in order, and dust is prevented from being blown to all places in the tunnel by the disordered air flow, the air flow at the tunneling part of the invention flows obliquely downwards, so that part of dust can face underground, and can be matched, the dust removal efficiency is improved, and the orderly and circular flow of the airflow is ensured while the gas is prevented from being gathered.
Description
Technical Field
The invention relates to an air regulating device for underground coal mine tunneling, in particular to a working face air regulating device for underground coal mine tunneling.
Background
At present, when a coal mine is tunneled underground, a coal bed is tunneled continuously by using a tunneling machine, and during the tunneling process of the tunneling machine, a large amount of dust is generated on one hand, and on the other hand, gas accumulation is easy to occur. Therefore, it is important for ventilation and air regulation at the driving face. However, at present, the air flow of the driving face is generally blown away by the fan so as to disperse the gas and the like, and the gas flows and diffuses outwards through the roadway, although the gas can be prevented from being gathered, the dust at the driving face is easy to fly disorderly in the roadway, the quality of the air in the roadway close to the driving part is very poor, the visibility is affected, and a lot of adverse effects are generated on the mining of the coal mine.
Therefore, the invention provides an air adjusting device for a working face for underground coal mine tunneling, which aims to solve the problems in the background technology.
Disclosure of Invention
The invention aims to provide a working face air regulating device for underground coal mine tunneling, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the working face air regulating device for underground coal mine tunneling comprises an upper air regulating mechanism and a lower air regulating mechanism and is characterized in that the upper air regulating mechanism is arranged above the rear end of a tunneling tool bit of the underground coal mine tunneling machine, the lower air regulating mechanism is arranged under the upper air regulating mechanism or behind the upper air regulating mechanism, the upper portion of the upper air regulating mechanism blows air towards the rear side of the tunneling tool bit in an inclined downward mode, the lower portion of the upper air regulating mechanism blows air towards the direction of the tunneling tool bit horizontally, the lower air regulating mechanism blows air horizontally towards the bottom of a roadway far away from the tunneling tool bit so that air flow in front of tunneling of the underground coal mine tunneling working face can circulate from top to bottom, and the lower air regulating mechanism enables the air flow to flow from the underground tunneling working face from front to back.
Further, as preferred, the upper air adjusting mechanism and the lower air adjusting mechanism are both fixed on the coal mine underground heading machine, wherein the upper air adjusting mechanism comprises an upper air outlet disc and a lower air outlet disc, the upper air outlet disc and the lower air outlet disc are both fixed on a sliding seat, and the sliding seat can slide on a cross beam of the coal mine underground heading machine so as to adjust the positions of the upper air outlet disc and the lower air outlet disc.
Preferably, the air outlet speed of the upper air outlet tray is smaller than the air outlet speed of the lower air outlet tray.
Further, as a preferred option, a cross beam of the coal mine underground boring machine is provided with a screw rod extending along the direction of the cross beam, the end part of the cross beam of the coal mine underground boring machine is further fixedly provided with an adjusting motor, the output end of the adjusting motor is connected with the screw rod, the sliding seat is in threaded connection with the screw rod, and the sliding seat is in sliding fit with the cross beam.
Further, as a preferred option, the down air adjusting mechanism comprises a down air adjusting seat, a down air adjusting head and a down air outlet, wherein the down air adjusting seat is fixedly installed on a chassis of the coal mine underground heading machine, the down air adjusting heads are fixed on the down air adjusting seat, and each down air adjusting head is provided with a plurality of down air outlets arranged at intervals along the horizontal direction.
Further, preferably, the front end of the underground coal mine heading machine is hinged with a heading cutter through a hinged joint, and the upper air adjusting mechanism is mounted at the rear end of the hinged joint of the underground coal mine heading machine.
Further, preferably, a front telescopic hydraulic cylinder and a rear hydraulic support cylinder are adopted between the underground coal mine heading machine and the bottom frame for supporting and adjusting, and a fan unit for controlling air blowing of the upper air adjusting mechanism and the lower air adjusting mechanism is further arranged on the bottom frame.
Further, as preferred, go up the air-out dish and include the disk body and fix a plurality of upper air-out heads of interval arrangement from top to bottom on the disk body, every go up the air-out head and all incline towards the lower part in place ahead and arrange.
Further, as preferred, lower air-out dish includes lower disk body and fixes a plurality of lower air-out heads of interval arrangement from top to bottom on lower disk body, every lower air-out head all the level is arranged forward.
Preferably, the projection cross-sectional area of the upper air outlet disc and the projection cross-sectional area of the lower air outlet disc in the vertical direction are at least larger than the projection cross-sectional area of the tunneling cutter in the vertical direction, a cross beam of the coal mine underground tunneling machine is of a steel frame structure, and a sliding rail which is matched with the sliding groove in the inner side of the sliding seat to slide is arranged on the cross beam.
Compared with the prior art, the invention has the beneficial effects that:
the invention arranges the upper air adjusting mechanism and the lower air adjusting mechanism, at the same time, the upper part of the upper air adjusting mechanism blows towards the lower part of the rear side of the tunneling tool bit in an inclined downward mode, the lower part of the upper air adjusting mechanism blows towards the direction of the tunneling tool bit horizontally, the lower air adjusting mechanism blows towards the bottom of the roadway horizontally in the direction far away from the tunneling tool bit, thus effectively circulating the air flow in front of the tunneling of the underground coal mine tunneling working face from top to bottom, and the lower air adjusting mechanism enables the air flow to flow from the front to the back from the underground tunneling working face, effectively ensuring the ordered flow and dispersion of the air flow at the tunneling working face, preventing the dust from being blown to all parts in the roadway by the disordered air flow, and meanwhile, the air flow at the tunneling part flows downwards in an inclined mode, enabling part of the dust to face underground, and being matched with the spraying mechanism to remove dust, improving the, the gas is prevented from being accumulated, and meanwhile, the orderly and circular flow of the airflow is ensured.
Drawings
FIG. 1 is a schematic structural diagram of a working face air regulating device for underground coal mine tunneling;
fig. 2 is a schematic view of the working principle and the airflow flowing structure of a working face air regulating device for underground coal mine tunneling at a tunneling working face.
Fig. 3 is a schematic structural view of an upper air adjusting mechanism of a working face air adjusting device for underground coal mine tunneling.
Detailed Description
Referring to fig. 1 to 3, in an embodiment of the present invention, an air adjusting device for a working face for underground coal mine tunneling comprises an upper air adjusting mechanism 02 and a lower air adjusting mechanism 04, it is characterized in that the upper air adjusting mechanism is arranged above the rear end of a tunneling tool bit of the coal mine underground tunneling machine, the lower air adjusting mechanism 04 is arranged right below or behind the upper air adjusting mechanism 02, the upper part of the up-regulation wind mechanism 02 blows wind in an obliquely downward manner toward the lower part of the rear side of the heading bit, the lower part of the upper air adjusting mechanism 02 blows air in the direction of horizontally facing the tunneling cutter head, the lower air adjusting mechanism 04 blows air horizontally in the direction of facing away from the tunneling cutter head at the bottom of the roadway, so that the air flow in front of the underground coal mine tunneling working face 01 can circulate from top to bottom, and the down-regulating wind mechanism enables the airflow to flow from the front to the back from the underground heading face 01.
In this embodiment, the upper air adjusting mechanism 02 and the lower air adjusting mechanism 04 are both fixed on the coal mine underground heading machine, wherein the upper air adjusting mechanism 02 includes an upper air outlet disc 5 and a lower air outlet disc 6, the upper air outlet disc 5 and the lower air outlet disc 6 are both fixed on a sliding seat 4, and the sliding seat can slide on a cross beam 1 of the coal mine underground heading machine so as to adjust the positions of the upper air outlet disc 5 and the lower air outlet disc 6.
As a preferred embodiment, the air outlet speed of the upper air outlet tray 5 is smaller than the air outlet speed of the lower air outlet tray 6. The beam 1 of the underground coal mine heading machine is provided with a screw rod 3 extending along the direction of the beam, the end part of the beam 1 of the underground coal mine heading machine is also fixedly provided with an adjusting motor 2, the output end of the adjusting motor is connected with the screw rod, the sliding seat 4 is in threaded connection with the screw rod 3, and the sliding seat is in sliding fit with the beam.
The lower air adjusting mechanism 04 comprises a lower air adjusting seat 10, a lower air adjusting head 9 and a lower air outlet 11, wherein the lower air adjusting seat 10 is fixedly installed on a bottom frame 13 of the underground coal mine heading machine, the lower air adjusting heads 9 are fixed on the lower air adjusting seat, and each lower air adjusting head is provided with the lower air outlets 11 which are arranged at intervals along the horizontal direction.
The front end of the coal mine underground heading machine is hinged with a heading cutter 7 through a hinged joint, and the upper air adjusting mechanism 02 is arranged at the rear end of the hinged joint of the coal mine underground heading machine. The underground coal mine heading machine is supported and adjusted by a front telescopic hydraulic cylinder 8 and a rear hydraulic supporting cylinder 14 between the underground coal mine heading machine and the base frame 13, and the base frame is further provided with a fan unit 12 for controlling air blowing of the upper air adjusting mechanism 02 and the lower air adjusting mechanism 04.
The upper air outlet disc 5 comprises a disc body and a plurality of upper air outlet heads 15 fixed on the disc body and arranged at intervals up and down, and each upper air outlet head is obliquely arranged towards the lower part of the front.
The lower air outlet tray 6 comprises a lower tray body and a plurality of lower air outlet heads 16 which are fixed on the lower tray body and are arranged at intervals up and down, and each lower air outlet head is horizontally arranged forwards.
The projection cross-sectional area of the upper air outlet disc 5 and the lower air outlet disc in the vertical direction is at least larger than that of the tunneling cutter 7 in the vertical direction, a cross beam 1 of the coal mine underground tunneling machine is of a steel frame structure, and a sliding rail which is matched with the sliding groove in the inner side of the sliding seat to slide is arranged on the cross beam.
The invention arranges the upper air adjusting mechanism and the lower air adjusting mechanism, at the same time, the upper part of the upper air adjusting mechanism blows towards the lower part of the rear side of the tunneling tool bit in an inclined downward mode, the lower part of the upper air adjusting mechanism blows towards the direction of the tunneling tool bit horizontally, the lower air adjusting mechanism blows towards the bottom of the roadway horizontally in the direction far away from the tunneling tool bit, thus effectively circulating the air flow in front of the tunneling of the underground coal mine tunneling working face from top to bottom, and the lower air adjusting mechanism enables the air flow to flow from the front to the back from the underground tunneling working face, effectively ensuring the ordered flow and dispersion of the air flow at the tunneling working face, preventing the dust from being blown to all parts in the roadway by the disordered air flow, and meanwhile, the air flow at the tunneling part flows downwards in an inclined mode, enabling part of the dust to face underground, and being matched with the spraying mechanism to remove dust, improving the, the gas is prevented from being accumulated, and meanwhile, the orderly and circular flow of the airflow is ensured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (10)
1. A working face air adjusting device for coal mine underground tunneling comprises an upper air adjusting mechanism (02) and a lower air adjusting mechanism (04), it is characterized in that the upper air adjusting mechanism is arranged above the rear end of a tunneling tool bit of the coal mine underground tunneling machine, the lower air adjusting mechanism (04) is arranged right below or behind the upper air adjusting mechanism (02), the upper part of the upper air adjusting mechanism (02) blows air towards the lower part of the rear side of the tunneling cutter head in an inclined downward mode, the lower part of the upper air adjusting mechanism (02) blows air in the direction of horizontally facing the tunneling cutter head, the lower air adjusting mechanism (04) blows air horizontally at the bottom of the roadway in a direction far away from the tunneling cutter head, so that the air flow in front of the tunneling of the underground coal mine tunneling working face (01) can circulate from top to bottom, and the down-regulating wind mechanism enables the airflow to flow from the front to the back at the underground heading face (01).
2. The working face air adjusting device for coal mine underground tunneling according to claim 1, wherein the upper air adjusting mechanism (02) and the lower air adjusting mechanism (04) are fixed on the coal mine underground tunneling machine, the upper air adjusting mechanism (02) comprises an upper air outlet disc (5) and a lower air outlet disc (6), the upper air outlet disc (5) and the lower air outlet disc (6) are fixed on a sliding seat (4), and the sliding seat can slide on a cross beam (1) of the coal mine underground tunneling machine so as to adjust the positions of the upper air outlet disc (5) and the lower air outlet disc (6).
3. The working face air regulating device for coal mine underground tunneling according to claim 2, characterized in that the air outlet speed of the upper air outlet disc (5) is smaller than the air outlet speed of the lower air outlet disc (6).
4. The working face air adjusting device for coal mine underground tunneling according to claim 3, characterized in that a screw (3) extending along the direction of the cross beam (1) of the coal mine underground tunneling machine is arranged on the cross beam (1), an adjusting motor (2) is further fixedly arranged at the end of the cross beam (1) of the coal mine underground tunneling machine, the output end of the adjusting motor is connected with the screw, the sliding seat (4) is in threaded connection with the screw (3), and the sliding seat is in sliding fit with the cross beam.
5. The working face air conditioning device for coal mine underground excavation according to claim 4, wherein the underground air conditioning mechanism (04) comprises an underground air conditioning seat (10), an underground air conditioning head (9) and an underground air outlet (11), wherein the underground air conditioning seat (10) is fixedly installed on a chassis (13) of the coal mine underground excavation machine, the plurality of underground air conditioning heads (9) are fixed on the underground air conditioning seat, and each underground air conditioning head is provided with the plurality of underground air outlets (11) which are arranged at intervals along the horizontal direction.
6. The working face air regulating device for coal mine underground tunneling according to claim 5, characterized in that the front end of the coal mine underground tunneling machine is hinged with a tunneling cutter (7) by adopting a hinged joint, and the upper air regulating mechanism (02) is installed at the rear end of the hinged joint of the coal mine underground tunneling machine.
7. The working face air adjusting device for coal mine underground tunneling according to claim 5, characterized in that a front telescopic hydraulic cylinder (8) and a rear hydraulic support cylinder (14) are adopted between the coal mine underground tunneling machine and the base frame (13) for supporting and adjusting, and a fan unit (12) for controlling air blowing of the upper air adjusting mechanism (02) and the lower air adjusting mechanism (04) is further arranged on the base frame.
8. The face air conditioner for underground coal mine excavation according to claim 2, wherein the upper air outlet tray (5) includes a tray body and a plurality of upper air outlet heads (15) fixed on the tray body and arranged at intervals up and down, and each upper air outlet head is arranged to be inclined toward the lower part of the front.
9. The face air conditioner for underground coal mine excavation according to claim 8, wherein the lower air outlet tray (6) includes a lower tray body and a plurality of lower air outlet heads (16) fixed on the lower tray body and arranged at intervals up and down, and each of the lower air outlet heads is arranged horizontally forward.
10. The working face air conditioning device for coal mine underground tunneling according to claim 5, wherein the projected cross-sectional area of the upper air outlet disc (5) and the projected cross-sectional area of the lower air outlet disc in the vertical direction are at least larger than the projected cross-sectional area of the tunneling cutter (7) in the vertical direction, a cross beam (1) of the coal mine underground tunneling machine is of a steel frame structure, and a sliding rail which is matched with the sliding groove in the inner side of the sliding seat to slide is arranged on the cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911380898.9A CN110925007B (en) | 2019-12-27 | 2019-12-27 | Working face air adjusting device for underground tunneling of coal mine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911380898.9A CN110925007B (en) | 2019-12-27 | 2019-12-27 | Working face air adjusting device for underground tunneling of coal mine |
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| CN110925007A true CN110925007A (en) | 2020-03-27 |
| CN110925007B CN110925007B (en) | 2021-03-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946381A (en) * | 2020-08-20 | 2020-11-17 | 王建文 | Working face air adjusting device for underground tunneling of coal mine |
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| CN102296955A (en) * | 2011-05-27 | 2011-12-28 | 山东科技大学 | Dedusting method with closed excavating working face and system thereof |
| CN204225888U (en) * | 2014-10-23 | 2015-03-25 | 山西中煤华晋能源有限责任公司 | Be applicable to the efficient Comprehensive Preventing dust falling system of the quick fully mechanized workface in difficult moistening coal seam |
| CN106640106A (en) * | 2017-02-23 | 2017-05-10 | 淮南矿业(集团)有限责任公司 | Mining whole-section hard rock tunneling machine and circulative tunneling method |
| CN109736804A (en) * | 2019-01-15 | 2019-05-10 | 山东科技大学 | The automatic coordinated regulation system of the comprehensive pick face pressure exhausting stream of one kind and its application method |
-
2019
- 2019-12-27 CN CN201911380898.9A patent/CN110925007B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296955A (en) * | 2011-05-27 | 2011-12-28 | 山东科技大学 | Dedusting method with closed excavating working face and system thereof |
| CN204225888U (en) * | 2014-10-23 | 2015-03-25 | 山西中煤华晋能源有限责任公司 | Be applicable to the efficient Comprehensive Preventing dust falling system of the quick fully mechanized workface in difficult moistening coal seam |
| CN106640106A (en) * | 2017-02-23 | 2017-05-10 | 淮南矿业(集团)有限责任公司 | Mining whole-section hard rock tunneling machine and circulative tunneling method |
| CN109736804A (en) * | 2019-01-15 | 2019-05-10 | 山东科技大学 | The automatic coordinated regulation system of the comprehensive pick face pressure exhausting stream of one kind and its application method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111946381A (en) * | 2020-08-20 | 2020-11-17 | 王建文 | Working face air adjusting device for underground tunneling of coal mine |
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