CN217129585U - Wet-type down-the-hole gas drainage device for coal mine - Google Patents
Wet-type down-the-hole gas drainage device for coal mine Download PDFInfo
- Publication number
- CN217129585U CN217129585U CN202220844906.1U CN202220844906U CN217129585U CN 217129585 U CN217129585 U CN 217129585U CN 202220844906 U CN202220844906 U CN 202220844906U CN 217129585 U CN217129585 U CN 217129585U
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- cylinder
- wet
- inner cavity
- gas drainage
- drainage device
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- 239000003245 coal Substances 0.000 title claims abstract description 23
- 239000004047 hole gas Substances 0.000 title claims abstract description 19
- 238000009792 diffusion process Methods 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims description 23
- 239000007924 injection Substances 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000004401 flow injection analysis Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a wet-type down-the-hole gas drainage device for coal mine, include: a receiving drum; the mixing cylinder is fixedly arranged on one side of the receiving cylinder and is communicated with the inner cavity of the receiving cylinder; the diffusion cylinder is fixedly arranged on one side of the mixing cylinder and is communicated with the inner cavity of the mixing cylinder; the ejection assembly is arranged on the outer side of the receiving cylinder; and the bottom ends of the receiving cylinder and the diffusion cylinder are provided with the supporting mechanisms. This wet-type down-the-hole gas drainage device for coal mine can effectively reduce gas drainage pipeline engineering installation cycle length, engineering volume is big, the down-the-hole carries out the nature discharge time longer, the poor scheduling problem of effect, can be convenient for adjust the height of first support column and arc mount through being provided with supporting mechanism to highly adjusting receiving cylinder and diffuser, and then can carry out arbitrary regulation with the device's angle, be applicable to more and take out the gas and put.
Description
Technical Field
The utility model relates to a colliery technical field specifically is a wet-type down-the-hole gas drainage device for coal mine.
Background
In the process of drilling holes for gas control in construction of a coal mine, frequently hole collapse and incomplete discharge of coal dust in the holes occur, when fine particles, coal falling in the holes and lost coal in a coal bed are mostly pumped into an extraction pipeline after hole connection drainage, the coal falling and the coal left in the holes move along with airflow, and when the coal is accumulated at a certain position, the pipeline is blocked, so that the normal operation of the whole pumping and drainage system is influenced, and the cleaning is difficult;
in the traditional down-the-hole extraction method, generally, after the drilling construction is finished, a gas extraction pipeline is laid for drainage, and the method is time-consuming and labor-consuming, large in input engineering quantity and long in construction period; the down-the-hole carries out natural discharge, and the time is long, and the effect is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wet-type down-the-hole gas drainage device for coal mines, which solves the problems that the drainage is carried out by laying a gas extraction pipeline in the prior art, the method is time-consuming and labor-consuming, the investment engineering amount is large, and the construction period is longer; the down-the-hole discharge is natural, the time is long and the effect is poor.
In order to achieve the above object, the utility model provides a following technical scheme: a wet-type down-the-hole gas drainage device for coal mines comprises:
a receiving drum;
the mixing cylinder is fixedly arranged on one side of the receiving cylinder and is communicated with the inner cavity of the receiving cylinder;
the diffusion cylinder is fixedly arranged on one side of the mixing cylinder and is communicated with the inner cavity of the mixing cylinder;
the ejection assembly is arranged on the outer side of the receiving cylinder;
and the bottom ends of the receiving cylinder and the diffusion cylinder are provided with the supporting mechanisms.
Preferably, the size of the inner cavity of the mixing drum is smaller than that of the inner cavity of the receiving drum.
Preferably, the diffuser cylinder is conical in shape.
Preferably, the injection assembly includes: the L-shaped injection pipe is inserted into the inner cavity of the receiving cylinder; the air inlet pipe is in threaded connection with the top end of the L-shaped injection pipe; the compressed air control valve is arranged at the top end of the air inlet pipe; and the water supply joint is in threaded connection with one side of the outer wall of the L-shaped injection pipe.
Preferably, one end of the L-shaped injection pipe is disposed toward the mixing cylinder.
Preferably, the support mechanism includes: the bottom ends of the outer walls of the receiving cylinder and the diffusion cylinder are fixedly provided with arc-shaped fixing frames; the front side and the rear side of the arc-shaped fixing frame are respectively provided with a first supporting column in a rotating way; the second supporting column is sleeved with the outer wall of the first supporting column; the base is fixedly arranged at the bottom end of the second supporting column.
Preferably, the support mechanism further includes: the inner side of the second support column is provided with a strip-shaped hole in the vertical direction, and the limiting column extends into the inner cavity of the second support column through the strip-shaped hole and is fixedly connected with the bottom end of the first support column; the front side and the rear side of the limiting column are respectively provided with an inserting rod in an inserting mode, one side of the inner cavity of the second supporting column is provided with a plurality of inserting holes from top to bottom, and one end of each inserting rod is in inserting connection with the inner cavity of each inserting hole in a matching mode; the pressing rod is inserted and connected with the top end of the limiting column; the inner side of the inserted rod is rotatably provided with a connecting rod, and one end of the connecting rod is rotatably connected with the bottom end of the outer side of the pressing rod; the spring, with cup joint mutually on one side of the outer wall of inserted bar, just the spring is fixed to be set up the inner chamber of spacing post with between the outer wall of inserted bar.
Compared with the prior art, the beneficial effects of the utility model are that: this wet-type down-the-hole gas drainage device for coal mine can effectively reduce gas drainage pipeline engineering installation cycle length, engineering volume is big, the down-the-hole carries out the natural emission time longer, the poor scheduling problem of effect, novel wet-type gas drainage device application effect:
1. the wet-type down-the-hole gas drainage device is simple in structure and ingenious in design, and the down-the-hole gas of the excavation working surface is extracted by utilizing the air flow injection principle;
2. all the required materials are processed by waste materials, the structure is simple, the installation is easy, the maintenance and the overhaul are convenient, the cost is low, and the effect is good;
3. the injection assembly has no mechanical motion part and is not limited by conditions such as friction, lubrication, vibration and the like; the work is reliable, and the service life is long; the structure is simple, the assembly and disassembly are easy, the weight is light, and the occupied area is small; the material is simple, and the material is very effective for removing corrosive high-temperature gas and impurity-containing gas as long as the material is properly selected;
4. can be convenient for adjust the height of first support column and arc mount through being provided with supporting mechanism to highly adjusting a receiving cylinder and a diffusion section of thick bamboo, and then can adjust the device's angle wantonly, be applicable to more and take out gas and put.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of the point A of FIG. 1 according to the present invention;
fig. 3 is a schematic structural view of the injection mechanism of the present invention;
fig. 4 is a right side sectional view of the second support pillar of the present invention.
In the figure: 1. the device comprises a receiving barrel, 2, a mixing barrel, 3, a diffusion barrel, 4, an injection assembly, 41, an L-shaped injection pipe, 42, an air inlet pipe, 43, a compressed air control valve, 44, a water supply connector, 5, a supporting mechanism, 51, an arc-shaped fixing frame, 52, a first supporting column, 53, a second supporting column, 54, a base, 55, a limiting column, 56, a strip-shaped hole, 57, an inserting rod, 58, an inserting hole, 59, a pressing rod, 510, a connecting rod, 511 and a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious 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.
Referring to fig. 1-4, the present invention provides a technical solution: a wet-type down-the-hole gas drainage device for coal mines comprises: receiving cylinder 1, mixing drum 2, diffusion cylinder 3, draw and penetrate subassembly 4 and supporting mechanism 5, mixing drum 2 is fixed to be set up in one side of receiving cylinder 1, and communicates with each other with the inner chamber of receiving cylinder 1, and diffusion cylinder 3 is fixed to be set up in one side of mixing drum 2, and the inner chamber of diffusion cylinder 3 and mixing drum 2 communicates with each other, draws and penetrates subassembly 4 and set up in the outside of receiving cylinder 1, and the bottom of receiving cylinder 1 and diffusion cylinder 3 all is provided with supporting mechanism 5.
Preferably, the size of the inner cavity of the mixing cylinder 2 is smaller than that of the inner cavity of the receiving cylinder 1, so that the compressed air and the gas are mixed in the mixing cylinder 2 for momentum exchange.
Preferably, the diffuser 3 is tapered to facilitate gas diffusion.
Preferably, the injection assembly 4 further includes: the air pressure control device comprises an L-shaped injection pipe 41, an air inlet pipe 42, an air pressure control valve 43 and a water supply connector 44, wherein the L-shaped injection pipe 41 is inserted into the inner cavity of the receiving cylinder 1, the air inlet pipe 42 is in threaded connection with the top end of the L-shaped injection pipe 41, the air pressure control valve 43 is arranged at the top end of the air inlet pipe 42, and the water supply connector 44 is in threaded connection with one side of the outer wall of the L-shaped injection pipe 41.
Preferably, one end of the L-shaped injection pipe 41 is disposed toward the mixing cylinder 2, flows out of the L-shaped injection pipe 41 into the receiving cylinder 1, forms a jet flow, generates entrainment flow, and generates a negative pressure region due to high speed of the gas flow, so that the gas outside the receiving cylinder 1 is sucked into the receiving cylinder 1.
Preferably, the support mechanism 5 further includes: arc mount 51, first support column 52, second support column 53 and base 54, the outer wall bottom of receiving section of thick bamboo 1 and diffusion section of thick bamboo 3 is all fixed and is provided with arc mount 51, and arc mount 51 all rotates in both sides around and is provided with first support column 52, and first support column 52 can rotate round arc mount 51, and second support column 53 cup joints mutually with the outer wall of first support column 52, and the fixed bottom that sets up at second support column 53 of base 54.
Preferably, the supporting mechanism 5 further includes: the limiting column 55, the strip-shaped hole 56, the inserting rod 57, the inserting hole 58, the pressing rod 59, the connecting rod 510 and the spring 511, the strip-shaped hole 56 is formed in the inner side of the second supporting column 53 along the vertical direction, the limiting column 55 extends into the inner cavity of the second supporting column 53 through the strip-shaped hole 56 and is fixedly connected with the bottom end of the first supporting column 52, the limiting column 55 can drive the first supporting column 52 to move up and down, the inserting rods 57 are inserted into the front side and the rear side of the limiting column 55, the inserting holes 58 are formed in one side of the inner cavity of the second supporting column 53 from top to bottom, one end of the inserting rod 57 is inserted into the inner cavity of the inserting hole 58 in a matching manner, the height of the limiting column 55 can be limited through the matching of the inserting rod 57 and the inserting hole 58, the pressing rod 59 is inserted into the top end of the limiting column 55, the connecting rod 510 is rotatably arranged on the inner side of the inserting rod 57, one end of the connecting rod 510 is rotatably connected with the bottom end of the outer side of the pressing rod 59, the pressing rod 59 is pressed downwards, so that the pressing rod 59 moves downwards and drives one end of the connecting rod 510 to move downwards, the other end of the connecting rod 510 pulls the inserting rod 57 to move inwards, the spring 511 is sleeved with one side of the outer wall of the inserting rod 57, the spring 511 is fixedly arranged between the inner cavity of the limiting column 55 and the outer wall of the inserting rod 57, the driving inserting rod 57 can move outwards and be inserted into the inserting hole 58 at the corresponding position again under the elastic action of the spring 511, and the first supporting column 52 can be fixed in the second supporting column 53.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through the wires, and an appropriate controller should be selected according to actual conditions to meet the control requirements, specific connection and control sequence.
The method comprises the following steps: before use, the height of the first support column 52 is adjusted to adjust the angles of the receiving cylinder 1 and the diffusion cylinder 3, and is more suitable for drawing and discharging down-hole gas, the pressing rod 59 is pressed downwards to make the pressing rod 59 move downwards and drive one end of the connecting rod 510 to move downwards, so that the other end of the connecting rod 510 pulls the inserting rod 57 to move inwards and stretch the spring 511, so that one end of the inserting rod 57 can move out of the inserting hole 58 to remove the position limitation of the limiting column 55, the first support column 52 can be lifted upwards, so that the heights of the receiving cylinder 1 and the diffusion cylinder 3 can be adjusted under the connection of the first support column 52 and the arc-shaped fixing frame 51, further the angle of the device can be adjusted randomly, and is more suitable for drawing and discharging gas, after the pressing rod 59 is loosened, the driving inserting rod 57 can move outwards and be inserted into the inserting hole 58 of the corresponding position again under the elastic force of the spring 511, so that the first support column 52 can be fixed in the second support column 53;
step two: compressed air is connected into an air inlet pipe 42 through a compressed air control valve 43 at a high speed and flows out of an L-shaped injection pipe 41 into a receiving cylinder 1 to form jet flow, entrainment flow is generated, a negative pressure area appears due to high speed of the air flow, so that the gas outside the receiving cylinder 1 is sucked into the receiving cylinder 1, the compressed air and the gas are mixed in a mixing cylinder 2 to carry out momentum exchange, a velocity field is gradually and uniformly distributed in the flowing process, then the pressure is increased due to reduction of the flow velocity, the pressure of the mixed fluid is higher than that of the gas entering the receiving cylinder 1 at an outlet of a diffusion cylinder 3, the mixed fluid is discharged through the diffusion cylinder 1, the compressed air and the water flow are pressed into the receiving cylinder 1 while the air flow is injected, when the gas and coal dust in drilling holes are discharged out of the diffusion cylinder 3 together, the water flow is changed into water mist through the compressed air, and the coal dust can be moistened, the purpose of dust removal is achieved.
In the description of the present invention, it is to be understood that the terms "top end", "bottom end", "front side", "rear side", "outer wall", "inner cavity", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; also, unless expressly stated or limited otherwise, the terms "telescoped," "inserted," "threaded," "secured," "interference fit," "disposed," and the like are to be construed broadly, e.g., as either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a wet-type down-the-hole gas drainage device for coal mine which characterized in that includes:
a receiving cylinder (1);
the mixing cylinder (2) is fixedly arranged on one side of the receiving cylinder (1) and is communicated with the inner cavity of the receiving cylinder (1);
the diffusion cylinder (3) is fixedly arranged on one side of the mixing cylinder (2), and the diffusion cylinder (3) is communicated with the inner cavity of the mixing cylinder (2);
the injection assembly (4) is arranged outside the receiving cylinder (1);
the bottom ends of the receiving cylinder (1) and the diffusion cylinder (3) are provided with the supporting mechanisms (5).
2. The wet-type down-the-hole gas drainage device for the coal mine according to claim 1, wherein: the size of the inner cavity of the mixing barrel (2) is smaller than that of the inner cavity of the receiving barrel (1).
3. The wet-type down-the-hole gas drainage device for the coal mine according to claim 1, wherein: the shape of the diffusion cylinder (3) is conical.
4. The wet-type down-the-hole gas drainage device for the coal mine according to claim 1, wherein: the injection assembly (4) comprises:
the L-shaped injection pipe (41) is inserted into the inner cavity of the receiving cylinder (1);
the air inlet pipe (42) is in threaded connection with the top end of the L-shaped injection pipe (41);
the compressed air control valve (43) is arranged at the top end of the air inlet pipe (42);
and a water supply joint (44) screwed with one side of the outer wall of the L-shaped injection pipe (41).
5. The wet-type down-the-hole gas drainage device for the coal mine according to claim 4, wherein: one end of the L-shaped injection pipe (41) is arranged towards the direction of the mixing cylinder (2).
6. The wet-type down-the-hole gas drainage device for the coal mine according to claim 1, wherein: the support mechanism (5) includes:
the bottom ends of the outer walls of the receiving cylinder (1) and the diffusion cylinder (3) are fixedly provided with arc-shaped fixing frames (51);
the front side and the rear side of the arc-shaped fixing frame (51) are respectively and rotatably provided with a first supporting column (52);
the second supporting column (53) is sleeved with the outer wall of the first supporting column (52);
and the base (54) is fixedly arranged at the bottom end of the second supporting column (53).
7. The wet-type down-the-hole gas drainage device for the coal mine according to claim 6, wherein: the support mechanism (5) further comprises:
the inner side of the second supporting column (53) is provided with a strip-shaped hole (56) in the vertical direction, and the limiting column (55) extends into the inner cavity of the second supporting column (53) through the strip-shaped hole (56) and is fixedly connected with the bottom end of the first supporting column (52);
the front side and the rear side of the limiting column (55) are respectively provided with an inserting rod (57) in an inserting mode, one side of the inner cavity of the second supporting column (53) is provided with a plurality of inserting holes (58) from top to bottom, and one end of each inserting rod (57) is in inserting connection with the inner cavity of each inserting hole (58) in a matching mode;
the pressing rod (59) is inserted into the top end of the limiting column (55);
the connecting rod (510) is rotatably arranged on the inner side of the inserting rod (57), and one end of the connecting rod (510) is rotatably connected with the bottom end of the outer side of the pressing rod (59);
spring (511), with the outer wall one side of inserted bar (57) cup joints mutually, just spring (511) is fixed to be set up the inner chamber of spacing post (55) with between the outer wall of inserted bar (57).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220844906.1U CN217129585U (en) | 2022-04-13 | 2022-04-13 | Wet-type down-the-hole gas drainage device for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220844906.1U CN217129585U (en) | 2022-04-13 | 2022-04-13 | Wet-type down-the-hole gas drainage device for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217129585U true CN217129585U (en) | 2022-08-05 |
Family
ID=82647732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220844906.1U Expired - Fee Related CN217129585U (en) | 2022-04-13 | 2022-04-13 | Wet-type down-the-hole gas drainage device for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217129585U (en) |
-
2022
- 2022-04-13 CN CN202220844906.1U patent/CN217129585U/en not_active Expired - Fee Related
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| 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: 20220805 |