CN217950431U - Ventilation device for coal mine - Google Patents
Ventilation device for coal mine Download PDFInfo
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- CN217950431U CN217950431U CN202221743230.3U CN202221743230U CN217950431U CN 217950431 U CN217950431 U CN 217950431U CN 202221743230 U CN202221743230 U CN 202221743230U CN 217950431 U CN217950431 U CN 217950431U
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- filter screen
- rotating shaft
- coal mine
- ventilation device
- air box
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Abstract
The utility model relates to a colliery field particularly, relates to a ventilation unit for coal mine. The ventilation device for the coal mine comprises an air box, a first filter screen, a rotary driver, a rotating shaft and an impact body; the first filter screen is arranged in the air box, the rotating shaft is in rotating fit with the part of the air box close to the first filter screen, and the impact body is connected with the rotating shaft through the strip-shaped flexible piece; the rotary driver is in transmission connection with the rotating shaft and used for driving the rotating shaft to rotate, and the impact body can impact the first filter screen when the rotating shaft rotates. The utility model provides a ventilation unit for coal mine can realize that the mediation to first filter screen is clean, prevents that the dust from blockking up first filter screen, not only can improve gas purification efficiency, and the reducible dust volume of passing first filter screen improves purifying effect moreover.
Description
Technical Field
The utility model relates to a colliery field particularly, relates to a ventilation unit for coal mine.
Background
Coal mines are reasonable spaces excavated by humans when excavating geological formations rich in coal and generally include roadways, wells, and mining surfaces, among others.
Need use ventilation unit in coal mining, gas in with the mine cave filters purification, adopt first filter screen to filter the dust in the air in the ventilation unit at present, adsorb on first filter screen easily by the filterable dust of first filter screen, long-term the use, first filter screen is blockked up easily to the dust, not only can lead to gaseous purification efficiency to reduce, the dust of attaching to on first filter screen passes first filter screen under the effect of air current easily moreover, influence purifying effect.
In summary, it is an urgent technical problem to be solved by those skilled in the art how to overcome the above-mentioned drawbacks of the existing ventilation devices.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a ventilation unit for coal mine to alleviate the first filter screen that ventilation unit for coal mine among the prior art exists and be blockked up easily technical problem.
The utility model provides a ventilation unit for coal mine, including bellows, first filter screen, rotary actuator, pivot and impactor.
First filter screen install in the bellows, the pivot with being close to of bellows the position normal running fit of first filter screen, the striking body pass through the bar flexible piece with the pivot is connected.
The rotary driver is connected with the rotating shaft in a transmission mode and used for driving the rotating shaft to rotate, and the striking body can strike the first filter screen when the rotating shaft rotates.
Preferably, as an implementation mode, the rotary driver is fixed at the top of the bellows, a through hole is formed in the top of the bellows, and the rotating shaft is in clearance fit with the through hole; the bottom of bellows has seted up the mounting hole, the pivot with install the bearing between the mounting hole.
Preferably, as an implementation mode, the number of the first filter screens is two, and the rotating shaft is located between the two first filter screens.
Preferably, as an embodiment, the strip-shaped flexible member is plural.
At least two bar flexible pieces are distributed along the axis of the rotating shaft at intervals, and/or a plurality of bar flexible pieces are symmetrically arranged relative to the axis of the rotating shaft.
Preferably, as an implementation mode, a sleeve is fixedly sleeved outside the rotating shaft, and the strip-shaped flexible part is fixedly connected with the sleeve; and/or, the rotary drive is a motor; and/or the strip-shaped flexible part is a connecting rope; and/or the impact body is a sphere.
Preferably, as an implementation mode, a spray head is further disposed between the air outlet of the air box and the first filter screen, and the spray head and the first filter screen are arranged along a horizontal direction; the spray head is communicated with a water source and is used for spraying water mist into the air box.
Preferably, as an implementation mode, a water tank is arranged at the bottom of the air box, a water outlet of the water tank is communicated with the spray head through a water pump, a through groove is formed in the bottom wall of the air box, and the air box is communicated with the water tank through the through groove.
Preferably, as an implementation mode, a second filter screen is installed at a position, close to the water outlet, of the water tank, and the second filter screen is used for filtering water flowing from the water tank to the water pump;
and/or, the inner surface of the bottom wall of the water tank is obliquely arranged from top to bottom from the direction of being close to the water outlet in the lateral direction departing from the water outlet.
Preferably, as an implementable mode, the air outlet is provided with a guide plate, one side of the guide plate is connected with the side wall of the air outlet, a gap exists between the other side of the guide plate and the side wall of the air outlet, and the guide plate and the side wall of the air outlet form an included angle.
Preferably, as an embodiment, the air outlet is opened at the top of the air box.
The guide plate is obliquely arranged from top to bottom from one side departing from the first filter screen to the direction close to the first filter screen; and/or the spray head is arranged on one side of the air box opposite to the first filter screen.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model provides a ventilation unit for coal mine, rotary actuator can drive the pivot to rotate, and the pivot of rotation can drive the striking body to rotate through the effect of bar flexible piece, and the striking body can strike first filter screen under the effect of centrifugal force, knocks off the dust that adheres to on the first filter screen; under the restriction of bar flexible piece, the striking body can not break away from the pivot to, but the striking body strikes first filter screen once and for a while intermittently, thereby, can realize the mediation cleanness to first filter screen, prevents that the dust from blockking up first filter screen, not only can improve gaseous purification efficiency, and the reducible dust volume of passing first filter screen improves purifying effect moreover.
It should be noted that the strip-shaped flexible member can be easily deformed, and when the impact body impacts the first filter screen, the strip-shaped flexible member can be instantaneously deformed to prevent the first filter screen and the rotating shaft from being subjected to overlarge impact force, so that the first filter screen and the rotating shaft are not easily damaged; correspondingly, after the striking body is rebounded by first filter screen, bar-shaped flexible piece also can take place deformation in the twinkling of an eye, withstands the striking body, makes the striking body can continue to follow the pivot and rotates to strike first filter screen once more.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic cross-sectional structural view of a ventilation device for a coal mine according to an embodiment of the present invention;
fig. 2 is a sectional view of a partial structure of a ventilation apparatus for a coal mine according to an embodiment of the present invention;
fig. 3 is a top view of an assembly structure of a rotating shaft, a sleeve, an impact body and a bar-shaped flexible member in the ventilation device for a coal mine according to the embodiment of the present invention;
fig. 4 is a schematic front view of a ventilation device for a coal mine according to an embodiment of the present invention.
Description of reference numerals:
1-an air box; 2-a first sieve; 3, a motor; 4-a rotating shaft; 5-a sleeve; 6-an impactor; 7-a bar-shaped flexible member; 8-air outlet; 9-a spray head; 10-a water tank; 11-a through slot; 12-a water pump; 13-a second screen; 14-a baffle; 15-a fan; 16-a control panel; 17-a movable seat; 18-hatch door.
Detailed Description
The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
Referring to fig. 1 to 4, the present embodiment provides a ventilation apparatus for a coal mine, which includes a wind box 1, a first screen 2, a rotary driver, a rotary shaft 4, and an impactor 6; the first filter screen 2 is arranged in the air box 1, the rotating shaft 4 is in running fit with the part of the air box 1 close to the first filter screen 2, and the impact body 6 is connected with the rotating shaft 4 through the strip-shaped flexible part 7; the rotary driver is in transmission connection with the rotating shaft 4 and is used for driving the rotating shaft 4 to rotate, and the impact body 6 can impact the first filter screen 2 when the rotating shaft 4 rotates.
According to the ventilation device for the coal mine, the rotary driver can drive the rotating shaft 4 to rotate, the rotating shaft 4 can drive the impact body 6 to rotate under the action of the strip-shaped flexible piece 7, and the impact body 6 can impact the first filter screen 2 under the action of centrifugal force to knock off dust attached to the first filter screen 2; under the restriction of bar flexible piece 7, the striking body 6 can not break away from pivot 4 to, striking body 6 can intermittently once strike first filter screen 2, thereby, can realize the mediation cleanness to first filter screen 2, prevent that the dust from blockking up first filter screen 2, not only can improve gaseous purification efficiency, but also reducible dust volume of passing first filter screen 2 improves purifying effect.
It should be noted that the strip-shaped flexible part 7 can be easily deformed, and when the impact body 6 impacts the first filter screen 2, the strip-shaped flexible part 7 can be instantaneously deformed to prevent the first filter screen 2 and the rotating shaft 4 from being subjected to an excessive impact force, so that the first filter screen 2 and the rotating shaft 4 are not easily damaged; correspondingly, after the impact body 6 is rebounded by the first filter screen 2, the strip-shaped flexible piece 7 can also be instantaneously deformed to pull the impact body 6, so that the impact body 6 can continuously rotate along with the rotating shaft 4 to impact the first filter screen 2 again.
Specifically, the rotary driver can be fixed on the top of the air box 1, and a through hole is formed in the top of the air box 1, so that the rotating shaft 4 is in clearance fit with the through hole, that is, the rotating shaft 4 can smoothly rotate in the through hole; the mounting hole is seted up to bottom at bellows 1 to installation bearing between pivot 4 and mounting hole, so, the both ends of pivot 4 just can be supported by rotary actuator and bearing respectively, thereby, after rotary actuator starts, pivot 4 can steadily rotate, and can bear the pulling force in the twinkling of an eye that comes from bar flexure 7, in addition, bellows 1 all is difficult because of frictional force and impact are damaged with pivot 4.
Above-mentioned first filter screen 2 is two, can set up pivot 4 between two first filter screens 2, and when pivot 4 rotated, two first filter screens 2 can be hit respectively to the impact body 6 of connection on pivot 4, that is to say, need not to install pivot 4 respectively to two first filter screens 2, reduce cost.
In addition, still can set up bar flexible 7 as a plurality ofly to make wherein two at least bar flexible 7 along the axis interval distribution of pivot 4, so, alright utilize different bar flexible 7 to hit the different regions of first filter screen 2, can improve the clear effect of mediation to first filter screen 2.
Still can set up bar-shaped flexible spare 7 axis symmetry relative to pivot 4, so, pivot 4 atress is more balanced, can further improve pivot 4's rotation stationarity, and when first filter screen 2 was two, the stationarity was better.
The number of the strip-shaped flexible pieces 7 arranged in a direction parallel to the axis of the rotating shaft 4 is set to two, and the two strip-shaped flexible pieces are respectively arranged at the dividing points of the trisection of the rotating shaft 4.
The sleeve 5 can be fixedly sleeved outside the rotating shaft 4, and the strip-shaped flexible part 7 is fixedly connected with the sleeve 5.
The motor 3 can be used as the rotary driver, i.e., the motor shaft of the motor 3 is coaxially fixed to the rotary shaft 4.
A connection string may be used as the strip-shaped flexible member 7.
The impact body 6 can be set to be a sphere, the surface of the sphere is smooth, and the first filter screen 2 is not easy to scratch.
In addition, still can set up shower nozzle 9 between air outlet and the first filter screen 2 of bellows 1, arrange shower nozzle 9 and first filter screen 2 along the horizontal direction, communicate shower nozzle 9 and water source, so that shower nozzle 9 can spray the water smoke toward bellows 1 in, so, the gas that gets into by the air intake of bellows 1 can carry out the prefilter in first filter screen 2 department, filter great dust with utilizing first filter screen 2, then, gas through the prefilter can get into the district that sprays, shower nozzle 9 spun water smoke can contact with the small particulate matter in the gas, make small particulate matter hit down, realize the secondary filter to gas, afterwards, clean air just can be discharged by air outlet 8 of bellows 1, can promote the purifying effect to the air.
Preferably, the bottom of the air box 1 can be additionally provided with a water tank 10, and the water outlet of the water tank 10 is communicated with the spray head 9 through a water pump 12, so that the water pump 12 in the water tank 10 can be sent to the spray head 9 by the water pump 12 to realize the supply of water source; and a through groove 11 can be formed in the bottom wall of the air box 1, so that the air box 1 and the water tank 10 can be communicated through the through groove 11, and thus, water mist sprayed by the spray head 9 can fall into the water tank 10 through the through groove 11 after secondary purification is carried out on air, so that water recycling can be realized, and energy can be saved.
Furthermore, a second filter screen 13 can be installed at a position of the water tank 10 close to the water outlet, so as to filter the water flowing from the water tank 10 to the water pump 12 by using the second filter screen 13, thereby improving the degree of cleanness of the water sprayed by the spray head 9, preventing the spray head 9 from being blocked, and ensuring the air purification effect.
Preferably, set up the internal surface of the diapire of water tank 10 to the inclined plane to make it by deviating from one side of delivery port to the one side that is close to the delivery port, from top to bottom slope sets up, so, the diapire of water tank 10 just can lead to the water in the water tank 10, makes the water in the water tank 10 toward the delivery port gathering, is convenient for make the hydroenergy in the water tank 10 can be taken out more smoothly.
Preferably, a guide plate 14 can be installed at the air outlet 8, one side of the guide plate 14 is connected with the side wall of the air outlet 8, a gap is reserved between the other side of the guide plate 14 and the side wall of the air outlet 8, and the guide plate 14 and the side wall of the air outlet 8 form an included angle, so that the guide plate 14 can form a certain barrier to the air in the air box 1 and guide the air in the air box 1, the retention time of the air in the air box 1 can be increased, the air can be better purified by water mist, and the air purification effect can be improved; the purified air can be discharged along the deflector 14 from the gap between the deflector 14 and the side wall of the outlet 8.
Specifically, set up air outlet 8 at the top of bellows 1 to make guide plate 14 by the side that deviates from first filter screen 2 to the direction that is close to first filter screen 2, from top to bottom slope sets up, so, can further increase the time that the air stayed in bellows 1.
The spray head 9 may be installed at the side of the windbox 1 opposite to the first screen 2.
A fan 151 is provided in the wind box 1, and the fan 15 can suck external air into the wind box 1 from an air inlet.
The air box 1 is provided with a control panel 16, and the output end of the control panel 16 is electrically connected with the fan 15, the motor 3 and the water pump 12 through wires so as to control whether the fan 15, the motor 3 and the water pump 12 are started.
The bellows 1 may be mounted on a movable base 17 so that the bellows 1 is moved by the movable base 17.
A hatch 18 can be movably arranged on the side surface of the air box 1, an observation window is embedded in the hatch 18, and the hatch 18 is opened, so that the parts in the air box 1 can be overhauled and cleaned.
A water filling port may be opened at the front of the water tank 1 so that a water source can be filled into the water tank 1 through the water filling port.
To sum up, the embodiment of the utility model discloses ventilation unit for coal mine, it has overcome traditional ventilation unit for coal mine's a plurality of technical defect. The embodiment of the utility model provides a ventilation unit for coal mine can realize that the mediation to first filter screen 2 is clean, prevents that the dust from blockking up first filter screen 2, not only can improve gaseous purification efficiency, and the reducible dust volume of passing first filter screen 2 improves purifying effect moreover.
In the description of the present invention, it should be noted that the terms "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the scope of the invention in its corresponding aspects.
Claims (10)
1. The ventilation device for the coal mine is characterized by comprising an air box (1), a first filter screen (2), a rotary driver, a rotating shaft (4) and an impact body (6);
the first filter screen (2) is arranged in the air box (1), the rotating shaft (4) is in running fit with the part, close to the first filter screen (2), of the air box (1), and the impact body (6) is connected with the rotating shaft (4) through a strip-shaped flexible piece (7);
the rotary driver is in transmission connection with the rotating shaft (4) and used for driving the rotating shaft (4) to rotate, and the impact body (6) can impact the first filter screen (2) when the rotating shaft (4) rotates.
2. The ventilation device for the coal mine according to the claim 1, characterized in that, the rotary driver is fixed on the top of the wind box (1), the top of the wind box (1) is provided with a through hole, the rotating shaft (4) is in clearance fit with the through hole; the bottom of the air box (1) is provided with a mounting hole, and a bearing is arranged between the rotating shaft (4) and the mounting hole.
3. The ventilation device for coal mine according to claim 1, characterized in that the number of the first filter screens (2) is two, and the rotating shaft (4) is located between the two first filter screens (2).
4. The coal mine ventilation device according to claim 1, wherein the strip-shaped flexible member (7) is plural;
at least two of the bar-shaped flexible parts (7) are distributed at intervals along the axis of the rotating shaft (4), and/or a plurality of the bar-shaped flexible parts (7) are symmetrically arranged relative to the axis of the rotating shaft (4).
5. The ventilation device for the coal mine according to claim 1, characterized in that a sleeve (5) is fixedly sleeved outside the rotating shaft (4), and the strip-shaped flexible part (7) is fixedly connected with the sleeve (5);
and/or the rotary drive is a motor (3);
and/or the strip-shaped flexible part (7) is a connecting rope;
and/or the impact body (6) is a sphere.
6. The ventilation device for the coal mine according to claim 1, characterized in that a spray head (9) is further arranged between the air outlet (8) of the air box (1) and the first filter screen (2), and the spray head (9) and the first filter screen (2) are arranged along a horizontal direction; the spray head (9) is communicated with a water source and is used for spraying water mist into the air box (1).
7. The ventilation device for the coal mine according to claim 6, characterized in that a water tank (10) is arranged at the bottom of the air box (1), a water outlet of the water tank (10) is communicated with the spray head (9) through a water pump (12), a through groove (11) is formed in the bottom wall of the air box (1), and the air box (1) is communicated with the water tank (10) through the through groove (11).
8. The ventilation device for the coal mine according to the claim 7, characterized in that a second filter screen (13) is arranged at the position of the water tank (10) close to the water outlet, and the second filter screen (13) is used for filtering the water flowing from the water tank (10) to the water pump (12);
and/or the inner surface of the bottom wall of the water tank (10) is obliquely arranged from top to bottom from the side departing from the water outlet to the direction close to the water outlet.
9. The ventilation device for the coal mine according to claim 6, characterized in that a guide plate (14) is installed at the air outlet (8), one side of the guide plate (14) is connected with the side wall of the air outlet (8), a gap exists between the other side of the guide plate (14) and the side wall of the air outlet (8), and the guide plate (14) and the side wall of the air outlet (8) form an included angle.
10. The ventilation device for coal mine according to claim 9, characterized in that the air outlet (8) is opened at the top of the wind box (1);
the guide plate (14) is obliquely arranged from top to bottom from one side departing from the first filter screen (2) to the direction close to the first filter screen (2); and/or the spray head (9) is arranged on one side of the air box (1) opposite to the first filter screen (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221743230.3U CN217950431U (en) | 2022-07-07 | 2022-07-07 | Ventilation device for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221743230.3U CN217950431U (en) | 2022-07-07 | 2022-07-07 | Ventilation device for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217950431U true CN217950431U (en) | 2022-12-02 |
Family
ID=84220327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221743230.3U Active CN217950431U (en) | 2022-07-07 | 2022-07-07 | Ventilation device for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217950431U (en) |
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2022
- 2022-07-07 CN CN202221743230.3U patent/CN217950431U/en active Active
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