CN110847945A - A quick ventilation mechanism for coal mining - Google Patents
A quick ventilation mechanism for coal mining Download PDFInfo
- Publication number
- CN110847945A CN110847945A CN201911178650.4A CN201911178650A CN110847945A CN 110847945 A CN110847945 A CN 110847945A CN 201911178650 A CN201911178650 A CN 201911178650A CN 110847945 A CN110847945 A CN 110847945A
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- Prior art keywords
- air
- air inlet
- blower
- explosion
- downward
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21F1/04—Air ducts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
Abstract
The invention discloses a quick ventilation mechanism for coal mining, wherein a downward blower set is arranged at the outer port of an air inlet channel, downward ventilation can be quickly realized, a flow equalizing blower mechanism can blow air in a coal mine tunnel or an operation goaf so as to uniformly blow off and circulate air flow in the coal mine tunnel or the operation goaf and ensure that the problem of gas accumulation cannot occur in the tunnel or the operation area, the flow equalizing blower mechanism is arranged to enable the air flow to flow from the lower end outlet of the air inlet channel to the lower end inlet of the air outlet channel, so that the ventilation performance between the underground and the outside can be effectively promoted, the ventilation speed is improved, and the ventilation efficiency is ensured. The two realize the air inlet and promote the performance that the air flows downwards, guarantee the effect of ventilation pump income air current.
Description
Technical Field
The invention relates to a ventilation mechanism, in particular to a quick ventilation mechanism for coal mining.
Background
At present, in the coal mining process, because the concentration requirements of coal mine tunnels, goafs and the like on gas are high, once the problem of gas accumulation occurs, accidents easily occur, and under the condition that the gas exceeds an early warning value, rapid ventilation is generally needed to ensure the gas content under a mine, so that the design and arrangement of ventilation equipment are of great importance to the safety of coal mining in the coal mining.
Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a rapid ventilation mechanism for coal mining.
Disclosure of Invention
The invention aims to provide a quick ventilation mechanism for coal mining, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a quick ventilation mechanism for coal mining, includes a plurality of and carries out the inlet air passageway and the air-out passageway of air inlet in coal mine tunnel or the operation collecting space, inlet air passageway and air-out passageway arrange in rock stratum or stratum with perpendicular or inclined mode, its characterized in that, inlet air passageway's outer port department is provided with down blower group, still be provided with the mechanism of blowing that flow equalizes along its extending direction in coal mine tunnel or the operation collecting space, the mechanism of blowing that flow equalizes can coal mine tunnel or operation collecting space are bloied to evenly blow away the circulation with the air current in coal mine tunnel or the operation collecting space, just the mechanism of blowing that flow equalizes is established to make the air current flow direction follow the lower extreme export flow direction of inlet air passageway the lower extreme entry of air-out passageway.
Further, as preferred, the mechanism of blowing of flow equalizing includes symmetrical arrangement the subassembly of blowing of inlet air channel's lower extreme export both sides, the subassembly of blowing includes explosion-proof fan, blowing pipe and a plurality of blowing head, wherein, the air inlet end orientation of explosion-proof fan the lower extreme export of inlet air channel, the blowing pipe be connected to the end of giving vent to anger of explosion-proof fan, the blowing pipe extends to nearest air outlet channel's lower extreme entrance along coal mine tunnel or operation collecting space area extending direction, the last array of blowing pipe is provided with a plurality of blowing heads that the orientation is different.
Further, as preferred, the air inlet end of explosion-proof fan includes first intake pipe and second intake pipe, first intake pipe slope upwards towards inlet air channel's lower extreme export, the second intake pipe downwards towards coal mine tunnel or operation collecting space area bottom.
Further, as preferred, downward hair-dryer group is including supply air duct, air supply storehouse, pushes down air supply blade wheel and air inlet blade wheel, wherein, supply air duct is vertical to be fixed the air inlet channel top, air supply channel's top is provided with air supply storehouse, be provided with in the air supply storehouse push down air supply blade wheel and air inlet blade wheel, wherein, push down air supply blade wheel and air inlet blade wheel coaxial arrangement, just push down air supply blade wheel and be located the top of air inlet blade wheel, be provided with the air inlet section of thick bamboo on the air supply storehouse corresponding to the position of air inlet blade wheel.
Further, preferably, the downward-pressing air-blowing blade wheel is configured to rotate so that air entering the air inlet drum moves vertically downward in the air-blowing duct, and the air inlet blade wheel is configured to rotate so that external air flows from the air inlet drum into the air-blowing bin.
Further, preferably, the rotation directions of the push-down blower blade wheel and the air intake blade wheel are opposite to each other.
Further, as preferred, the supply air duct adopts the regulation support to fix in the inlet air duct, the storehouse of sending wind is fixed on the mounting panel.
Further, preferably, the downward-pressing air supply blade wheel is driven by an explosion-proof direct-drive motor, the air inlet blade wheel is driven by an explosion-proof motor, the explosion-proof motor and the explosion-proof direct-drive motor are both fixed on the support plate by adopting a motor base, and the output end of the explosion-proof motor penetrates through the center of the explosion-proof direct-drive motor.
Further, as preferred, the output of explosion-proof direct drive motor is connected to the driving sleeve of hollow structure, the tip of driving sleeve adopts connecting seat fixed connection to push down air supply impeller, explosion-proof motor output connects the main shaft, the main shaft passes and stretches out backward behind explosion-proof direct drive motor and the driving sleeve to push down air supply impeller back and be connected to air inlet impeller, the main shaft with all be provided with the clearance between explosion-proof direct drive motor and the driving sleeve.
Preferably, the downward blowing unit and the equal flow blowing mechanism are both provided with two sets, so that one set is set as an emergency standby unit.
Compared with the prior art, the invention has the beneficial effects that:
the outer port of the air inlet channel of the invention is provided with the downward blower set, thus, downward ventilation can be realized rapidly, meanwhile, a flow equalizing and blowing mechanism is arranged in the coal mine tunnel or the operation goaf along the extension direction of the coal mine tunnel or the operation goaf and can blow air in the coal mine tunnel or the operation goaf, so as to uniformly blow and circulate the airflow in the coal mine tunnel or the operation goaf, ensure that the problem of gas accumulation does not occur in the tunnel or the operation area, meanwhile, the flow equalizing blowing mechanism of the invention is arranged to lead the air flow to flow from the lower outlet of the air inlet channel to the lower inlet of the air outlet channel, can effectively promote the ventilation performance between the underground and the outside, improve the ventilation speed and ensure the ventilation efficiency, when the air is pumped downwards, the device is specially provided with a downward-pressing air supply blade wheel and an air inlet blade wheel which are coaxial and have opposite rotation directions. The two realize the air inlet and promote the performance that the air flows downwards, guarantee the effect of ventilation pump income air current, adopt different motors to drive respectively moreover, can prevent to adopt a motor and need power too big and lead to the problem that the production of heat is too much to break down easily, simultaneously, the opposite rotation of the two can improve the mobile power of air current.
Drawings
FIG. 1 is a schematic view of an arrangement of a rapid ventilation mechanism for coal mining;
fig. 2 is a schematic structural diagram of a downward blower unit in a rapid ventilation mechanism for coal mining.
FIG. 3 is a schematic diagram of an arrangement structure between an output end of the explosion-proof direct drive motor and an output end of the explosion-proof motor in FIG. 2;
Detailed Description
Referring to fig. 1 to 3, in an embodiment of the present invention, a rapid ventilation mechanism for coal mining includes a plurality of air inlet channels 2 and air outlet channels 4 for air inlet into a coal mine tunnel or an operation gob 7, the air inlet channel 2 and the air outlet channel 4 are arranged in a vertical or inclined mode in a rock stratum or a stratum 1, it is characterized in that a downward blowing unit 3 is arranged at the outer port of the air inlet channel 2, a flow equalizing blowing mechanism is arranged in the coal mine tunnel or the operation goaf 7 along the extension direction of the coal mine tunnel or the operation goaf, the flow equalizing blowing mechanism can blow air in the coal mine tunnel or the operation goaf, so as to uniformly blow away and circulate the airflow in the coal mine roadway or the operation goaf, and the flow equalizing and blowing mechanism is set to ensure that the airflow flows from the lower outlet of the air inlet channel 2 to the lower inlet of the air outlet channel 4.
In this embodiment, the current-sharing blowing mechanism comprises a blowing assembly which is symmetrically arranged on two sides of the lower end outlet of the air inlet channel 2, the blowing assembly comprises an explosion-proof fan 5, a blowing pipe 6 and a plurality of blowing heads 8, wherein the air inlet end of the explosion-proof fan 5 faces the lower end outlet of the air inlet channel 2, the blowing pipe is connected to the air outlet end of the explosion-proof fan, the blowing pipe extends to the lower end inlet of the nearest air outlet channel 4 along the extension direction of a coal mine roadway or an operation goaf 7, and the blowing heads 8 with different orientations are arranged on the blowing pipe in an array mode.
As a better embodiment, the air inlet end of the explosion-proof fan 5 comprises a first air inlet pipe and a second air inlet pipe, the first air inlet pipe is inclined upwards towards the outlet at the lower end of the air inlet channel 2, and the second air inlet pipe is inclined downwards towards the bottom of the coal mine roadway or the operation goaf 7.
The downward air blower set 3 comprises an air supply pipeline 14, an air supply bin, a downward pressing air supply blade wheel 17 and an air inlet blade wheel 18, wherein the air supply pipeline is vertically fixed at the top of the air inlet channel 2, the air supply bin is arranged at the top of the air supply channel, the downward pressing air supply blade wheel 17 and the air inlet blade wheel 18 are arranged in the air supply bin, the downward pressing air supply blade wheel 17 and the air inlet blade wheel 18 are coaxially arranged, the downward pressing air supply blade wheel 17 is located above the air inlet blade wheel 18, and an air inlet barrel 13 is arranged at a position, corresponding to the air inlet blade wheel 18, on the air supply bin.
The downward-pressing air-blowing blade wheel 17 is configured to rotate so that air entering the air inlet drum 13 moves vertically downward in the air-blowing duct 14, and the air inlet blade wheel 18 is configured to rotate so that external air flows from the air inlet drum 13 into the air-blowing bin.
The downward-pressing air-blowing vane wheel 17 and the air-intake vane wheel 18 are configured to rotate in opposite directions. The air supply pipeline 14 is fixed in the air inlet channel 2 by adopting an adjusting bracket 15, and the air supply bin is fixed on a bracket plate 16.
The downward-pressing air supply impeller 17 is driven by an explosion-proof direct-drive motor 11, the air inlet impeller 18 is driven by an explosion-proof motor 10, the explosion-proof motor and the explosion-proof direct-drive motor 11 are both fixed on the support plate 16 by adopting a motor base 9, and the output end of the explosion-proof motor penetrates through the center of the explosion-proof direct-drive motor 11.
The output end of the explosion-proof direct-drive motor 11 is connected to a drive sleeve 20 of a hollow structure, the end part of the drive sleeve 20 is fixedly connected with a downward-pressing air supply vane wheel 17 through a connecting seat 19, the output end of the explosion-proof motor 10 is connected with a main shaft 22, the main shaft penetrates through the explosion-proof direct-drive motor 11 and the drive sleeve 20 and then extends forwards to the downward-pressing air supply vane wheel 17 and then is connected to an air inlet vane wheel 18, and a gap is formed between the main shaft and the explosion-proof direct-drive motor 11 and the drive sleeve 20.
The outer port of the air inlet channel of the invention is provided with the downward blower set, thus, downward ventilation can be realized rapidly, meanwhile, a flow equalizing and blowing mechanism is arranged in the coal mine tunnel or the operation goaf along the extension direction of the coal mine tunnel or the operation goaf and can blow air in the coal mine tunnel or the operation goaf, so as to uniformly blow and circulate the airflow in the coal mine tunnel or the operation goaf, ensure that the problem of gas accumulation does not occur in the tunnel or the operation area, meanwhile, the flow equalizing blowing mechanism of the invention is arranged to lead the air flow to flow from the lower outlet of the air inlet channel to the lower inlet of the air outlet channel, can effectively promote the ventilation performance between the underground and the outside, improve the ventilation speed and ensure the ventilation efficiency, when the air is pumped downwards, the device is specially provided with a downward-pressing air supply blade wheel and an air inlet blade wheel which are coaxial and have opposite rotation directions. The two realize the air inlet and promote the performance that the air flows downwards, guarantee the effect of ventilation pump income air current, adopt different motors to drive respectively moreover, can prevent to adopt a motor and need power too big and lead to the problem that the production of heat is too much to break down easily, simultaneously, the opposite rotation of the two can improve the mobile power of air current.
The downward blowing unit 3 and the flow equalizing blowing mechanism are both two sets, so that one set is set as an emergency standby unit.
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 rapid ventilation mechanism for coal mining comprises a plurality of air inlet channels (2) and air outlet channels (4) which are communicated with the coal mine tunnel or the operation goaf (7), the air inlet channel (2) and the air outlet channel (4) are arranged in the rock stratum or the stratum (1) in a vertical or inclined mode, it is characterized in that a downward blower set (3) is arranged at the outer port of the air inlet channel (2), a flow equalizing and blowing mechanism is arranged in the coal mine tunnel or the operation goaf (7) along the extension direction of the coal mine tunnel or the operation goaf and can blow air in the coal mine tunnel or the operation goaf, so as to uniformly blow away and circulate the airflow in the coal mine roadway or the operation goaf, and the flow equalizing and blowing mechanism is set to ensure that the airflow flows from the lower outlet of the air inlet channel (2) to the lower inlet of the air outlet channel (4).
2. The quick ventilation mechanism for coal mining according to claim 1, characterized in that the flow equalizing blower mechanism comprises blower assemblies symmetrically arranged on two sides of the lower end outlet of the air inlet channel (2), each blower assembly comprises an explosion-proof blower (5), a blower pipe (6) and a plurality of blower heads (8), wherein the air inlet end of the explosion-proof blower (5) faces the lower end outlet of the air inlet channel (2), the blower pipe is connected to the air outlet end of the explosion-proof blower, the blower pipe extends to the nearest lower end inlet of the air outlet channel (4) along the extension direction of a coal mine roadway or a working goaf (7), and the blower pipes are provided with a plurality of blower heads (8) facing different directions in an array.
3. The rapid ventilation mechanism for coal mining according to claim 2, characterized in that the air inlet end of the explosion-proof fan (5) comprises a first air inlet pipe and a second air inlet pipe, the first air inlet pipe is inclined upwards towards the outlet of the lower end of the air inlet channel (2), and the second air inlet pipe is inclined downwards towards the bottom of the coal mine tunnel or the operation goaf (7).
4. The quick ventilation mechanism for coal mining according to claim 1, characterized in that the downward blower set (3) comprises a blower pipe (14), a blower bin, a downward-pressing blower blade wheel (17) and an air inlet blade wheel (18), wherein the blower pipe is vertically fixed on the top of the air inlet channel (2), the blower bin is arranged on the top of the blower channel, the downward-pressing blower blade wheel (17) and the air inlet blade wheel (18) are arranged in the blower bin, the downward-pressing blower blade wheel (17) and the air inlet blade wheel (18) are coaxially arranged, the downward-pressing blower blade wheel (17) is located above the air inlet blade wheel (18), and an air inlet drum (13) is arranged on the blower bin corresponding to the air inlet blade wheel (18).
5. A rapid ventilation mechanism for coal mining according to claim 4, wherein the downward-pressing air-supply vane wheel (17) is shaped so that when it rotates, the air taken in from the air inlet drum (13) moves vertically downward in the air supply duct (14), and the air-supply vane wheel (18) is shaped so that when it rotates, the external air flows from the air inlet drum (13) into the air supply bin.
6. A rapid ventilation mechanism for coal mining according to claim 5, wherein the blade wheels (17, 18) are arranged to rotate in opposite directions.
7. A rapid ventilation mechanism for coal mining according to claim 6, characterized in that the air supply duct (14) is fixed in the air intake duct (2) by an adjusting bracket (15), and the air supply bin is fixed on a bracket plate (16).
8. The rapid ventilation mechanism for coal mining according to claim 1, characterized in that the downward-pressing air supply vane wheel (17) is driven by an explosion-proof direct-drive motor (11), the air inlet vane wheel (18) is driven by an explosion-proof motor (10), the explosion-proof motor and the explosion-proof direct-drive motor (11) are both fixed on the support plate (16) by a motor base (9), and the output end of the explosion-proof motor penetrates through the center of the explosion-proof direct-drive motor (11).
9. The rapid ventilation mechanism for coal mining according to claim 8, characterized in that the output end of the explosion-proof direct drive motor (11) is connected to a drive sleeve (20) of a hollow structure, the end of the drive sleeve (20) is fixedly connected with a downward-pressing air supply vane wheel (17) by a connecting seat (19), the output end of the explosion-proof motor (10) is connected with a main shaft (22), the main shaft penetrates through the explosion-proof direct drive motor (11) and the drive sleeve (20), extends out of the downward-pressing air supply vane wheel (17) forwards and then is connected to an air inlet vane wheel (18), and a gap is formed between the main shaft and the explosion-proof direct drive motor (11) and the drive sleeve (20).
10. A rapid ventilation mechanism for coal mining according to claim 1, characterized in that the down-blower unit (3) and the flow equalizing blower unit are provided in two sets, so that one set is provided as an emergency backup unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911178650.4A CN110847945B (en) | 2019-11-25 | 2019-11-25 | A quick ventilation mechanism for coal mining |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911178650.4A CN110847945B (en) | 2019-11-25 | 2019-11-25 | A quick ventilation mechanism for coal mining |
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| CN110847945A true CN110847945A (en) | 2020-02-28 |
| CN110847945B CN110847945B (en) | 2021-03-23 |
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| CN201911178650.4A Active CN110847945B (en) | 2019-11-25 | 2019-11-25 | A quick ventilation mechanism for coal mining |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422877A (en) * | 2013-09-01 | 2013-12-04 | 邢桂生 | Underground coal mine ventilation and dust removal safety system |
| CN205423244U (en) * | 2016-04-07 | 2016-08-03 | 李辉军 | Energy -efficient ventilation unit is used to portable grain depot |
| CN206503777U (en) * | 2016-12-31 | 2017-09-19 | 陆有光 | A kind of pipeline ventilation machine |
| CN109538275A (en) * | 2018-11-19 | 2019-03-29 | 中国矿业大学(北京) | The forced ventilation method and ventilating system of a kind of longwall mining working face tail portion |
| CN109667612A (en) * | 2018-12-27 | 2019-04-23 | 常州工学院 | The separate system and method aeration-cooling for U-shaped long range stope |
-
2019
- 2019-11-25 CN CN201911178650.4A patent/CN110847945B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422877A (en) * | 2013-09-01 | 2013-12-04 | 邢桂生 | Underground coal mine ventilation and dust removal safety system |
| CN205423244U (en) * | 2016-04-07 | 2016-08-03 | 李辉军 | Energy -efficient ventilation unit is used to portable grain depot |
| CN206503777U (en) * | 2016-12-31 | 2017-09-19 | 陆有光 | A kind of pipeline ventilation machine |
| CN109538275A (en) * | 2018-11-19 | 2019-03-29 | 中国矿业大学(北京) | The forced ventilation method and ventilating system of a kind of longwall mining working face tail portion |
| CN109667612A (en) * | 2018-12-27 | 2019-04-23 | 常州工学院 | The separate system and method aeration-cooling for U-shaped long range stope |
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| CN110847945B (en) | 2021-03-23 |
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