CN114837734A - Gas discharge device and method for mine coal seam roadway - Google Patents
Gas discharge device and method for mine coal seam roadway Download PDFInfo
- Publication number
- CN114837734A CN114837734A CN202210701462.0A CN202210701462A CN114837734A CN 114837734 A CN114837734 A CN 114837734A CN 202210701462 A CN202210701462 A CN 202210701462A CN 114837734 A CN114837734 A CN 114837734A
- Authority
- CN
- China
- Prior art keywords
- gas
- pipe
- fixed
- frame
- coal seam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003245 coal Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000000428 dust Substances 0.000 claims abstract description 95
- 210000001503 joint Anatomy 0.000 claims abstract description 37
- 238000010521 absorption reaction Methods 0.000 claims abstract description 30
- 238000010790 dilution Methods 0.000 claims abstract description 27
- 239000012895 dilution Substances 0.000 claims abstract description 27
- 238000012545 processing Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 52
- 230000007246 mechanism Effects 0.000 claims description 45
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000005065 mining Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 195
- 239000003085 diluting agent Substances 0.000 description 13
- 230000008569 process Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 238000003032 molecular docking Methods 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000003113 dilution method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21F5/20—Drawing-off or depositing dust
Abstract
The application relates to a gas discharge device and a method for a mine coal seam roadway, which belong to the field of mining, and comprise a propulsion vehicle, wherein one side of the propulsion vehicle is movably connected with a main frame, the middle part of the inner side of the main frame is detachably and fixedly provided with an absorption frame, the middle part of the top end of the absorption frame is provided with a gas main discharge pipe, one side of the gas main discharge pipe is provided with a gas dilution processing connecting assembly, one side of the top end of the absorption frame is provided with a dust collection auxiliary assembly, the outer side surface of the main frame is provided with a dust fall auxiliary assembly, the top ends of the gas main discharge pipe, the gas dilution processing connecting assembly and the dust fall auxiliary assembly are respectively provided with a butt joint assembly, the gas discharge device is driven to move, and is matched with a gas concentration detector to detect a region with higher gas concentration, so that the problem that the existing discharge device in the prior art needs to consume more discharge energy when the gas is discharged and the gas is integrally removed is solved, meanwhile, the problem of pressure collection of gas at the air outlet is solved.
Description
Technical Field
The invention relates to a gas discharge device and a gas discharge method for a mine coal seam roadway, and belongs to the field of mining.
Background
Mine gas is a generic name of poisonous and harmful gas mainly containing methane in the well, and sometimes refers to methane alone. The gas is lighter than air, easy to diffuse, strong in permeability and easy to discharge from adjacent layers through rock stratums and goafs. The gas is non-toxic, but can not be breathed by people, and when the concentration of the gas in the air in the mine exceeds 50 percent, people can suffocate and die due to oxygen deficiency. The gas can be burnt or exploded, the gas explosion is one of the main disasters of coal mines, and many cases of casualties and serious production damage caused by the gas explosion exist at home and abroad. The gas generated in the coal-forming process is formed by decomposing cellulose and organic matters under the action of anaerobic bacteria at the initial stage of the ancient plants accumulating into coal. In addition, in a high-temperature and high-pressure environment, gas is continuously generated due to physical and chemical actions while coal is produced, and during coal seam mining, the gas contained in the coal seam is discharged into a coal seam roadway along with the coal seam, so that certain personal safety threat is caused to coal seam operators, and therefore, the gas needs to be reasonable for coal seam mining operation.
At present, the gas discharge mode during coal seam mining has the following modes: the method comprises the following steps of bundling a wind barrel, blocking a local fan, arranging a trifurcate wind barrel to discharge gas and disconnecting the wind barrel, wherein when the gas is actually discharged, four technologies are matched to reasonably discharge the gas, and the coal and gas outburst early warning and monitoring are particularly important.
However, when the gas is discharged by the current gas discharge equipment, because the working plane of the coal seam roadway is longer and the roadway has a certain number of branch lines, the existing gas discharge equipment needs to consume more discharge energy sources when the gas is discharged and the whole gas is cleared, and the gas collection pressure of the air outlet is increased.
Therefore, the improvement is made, and the gas discharge device and the method for the mine coal seam roadway are provided.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the existing discharge device needs to consume more discharge energy when gas is discharged and the whole gas is removed, and the problem of gas collection pressure of an air outlet is increased.
(II) technical scheme
In order to achieve the purpose, the invention provides a gas discharge device of a mine coal seam roadway, which comprises a propulsion vehicle, wherein one side of the propulsion vehicle is movably connected with a main frame, an absorption frame is detachably and fixedly arranged in the middle of the inner side of the main frame, a gas main discharge pipe is arranged in the middle of the top end of the absorption frame, a gas dilution treatment connecting assembly is arranged on one side of the gas main discharge pipe, a dust collection auxiliary assembly is arranged on one side of the top end of the absorption frame, a dust fall auxiliary assembly is arranged on the outer side surface of the main frame, and a butt joint assembly is respectively arranged at the top ends of the gas main discharge pipe, the gas dilution treatment connecting assembly and the dust fall auxiliary assembly;
the main frame comprises a fixed frame body, an L-shaped connecting frame and a main frame body, wherein the fixed frame body, the L-shaped connecting frame and the main frame body are fixed on one side of the propulsion vehicle;
the gas dilution treatment connecting assembly comprises a three-way pipe fixedly sleeved on the side surface of the gas main discharge pipe and communicated with the gas main discharge pipe, an air pump is fixedly arranged on one side of the three-way pipe, and an air guide pipe is fixedly arranged at the top end of the air pump;
the dust collection auxiliary assembly comprises a U-shaped pipe and a negative pressure pump, a gas collecting pipe is fixed in the middle of the top end of the U-shaped pipe and fixed with the negative pressure pump through the gas collecting pipe, and a second lifting control mechanism is arranged between the negative pressure pump and the main frame body and movably connected through the second lifting control mechanism;
the dust fall auxiliary assembly comprises a branch water pipe, a plurality of atomizing nozzles are fixedly arranged on one side of the branch water pipe, and the branch water pipe is fixedly connected with a straight water pipe through a short hose fixed at one end of the branch water pipe;
the butt joint subassembly is including straight slat, long hose down, go up straight slat, miniature hydraulic telescoping rod, butt joint pipe and conduction pipe, miniature hydraulic telescoping rod is fixed in between straight slat and the straight slat down, the one end and the straight water piping of long hose are fixed, the other end of long hose passes straight slat and is fixed with straight card pipe on and.
The first lifting control mechanism comprises a driving motor and a lead screw, the L-shaped connecting frame is in threaded connection with the lead screw, the driving motor is fixed at the top end of the fixed frame body, and the output end of the driving motor penetrates through the fixed frame body and is in transmission connection with the lead screw through a coupler.
The side surface of the three-way pipe is fixedly sleeved with a first one-way valve, and the bottom end of the air pump is fixed with the main frame body.
The bottom of the negative pressure pump is provided with a strip-shaped fixing plate through bolt fixing, T-shaped sliding plates are fixedly arranged at two ends of the strip-shaped fixing plate, a second limiting sliding groove is formed in the side face of the main frame body, the structure of the second lifting control mechanism is the same as that of the first lifting control mechanism, and the T-shaped sliding plates are connected in the second limiting sliding groove in a sliding mode and in threaded connection with a screw rod located on the second lifting control mechanism.
The absorbing frame comprises an outer frame shell and a cover body, the outer frame shell and the cover body are fixed through bolts, the middle of the top end of the cover body is fixed with a gas main discharge pipe, two threaded pipe orifices are fixedly arranged on one side of the top end of the cover body, and the threaded pipe orifices are in threaded connection with the bottom end of a U-shaped pipe in a matched mode.
Wherein, the inboard fixed welding of the body frame body has the steady rest, the outer fixed outer card rail that is equipped with steady rest cooperation joint of shell of outer frame shell, just the fixed first card rail that is equipped with in inner wall one side of outer frame shell, just first card rail joint has the grid board, the fixed second card rail that is equipped with in inner wall middle part of outer frame shell, just second card rail joint has double-deck screen board, the inboard that the screw thread mouth of pipe is located the inside one end of outer frame shell is fixed and is equipped with the separation filter screen.
The atomizing nozzle is arranged on the main frame body, the branch water pipe is arranged on the main frame body, the atomizing nozzle is arranged on the branch water pipe, and the branch water pipe is arranged on the main frame body.
Wherein, the top and the butt joint pipe joint of straight card pipe, the even equidistance of butt joint pipe is fixed in the bottom of conduction pipe and communicates with the conduction pipe, the fixed a plurality of bayonet socket that is equipped with in side of butt joint pipe, the inside of bayonet socket is fixed with the spring part, the fixed steel ball that is equipped with in one end of spring part, one side of steel ball pass the bayonet socket and with the inner wall joint of straight card pipe, just the fixed cover in side of butt joint pipe is equipped with the second check valve.
Wherein, one side that the body frame body is close to fixed support body is equipped with third lift control mechanism, third lift control mechanism is the same with first lift control mechanism structure, the spacing spout of third has been seted up to one side of the body frame body, the inside sliding connection of the spacing spout of third has link block, link block's one end fixedly connected with gas concentration detector, just link block and the lead screw threaded connection who is located third lift control mechanism.
A method for discharging gas from a mine coal seam roadway comprises the following specific steps:
step S1: the propelling car works and is matched with the main frame to move the whole device, the gas concentration is detected by the gas concentration detector, and the stopping point of the device is determined;
step S2: the butt joint assembly is respectively butted with the gas main discharge pipe, the gas guide pipe and the straight water pipe to finish the preparation work;
step S3: when the gas concentration exceeds the value to be discharged, the outward discharge of the gas is completed by matching with the main gas discharge pipe and the absorption frame;
step S4: when the gas is discharged outwards, the gas is introduced into the gas main discharge pipe by using the gas dilution treatment connecting assembly to realize the dilution of the gas, and meanwhile, the absorption frame can intercept large objects and dust to realize the separation treatment of the gas and the dust;
step S5: when gas concentration does not reach the value that needs to discharge, and need carry out the dust fall of dust and handle, utilize the dust to collect auxiliary assembly and improve dust collection efficiency to cooperation dust fall auxiliary assembly improves the dust fall effect.
(III) advantageous effects
The invention provides a gas discharge device and a gas discharge method for a mine coal seam roadway, which have the beneficial effects that:
1. through the propelling car and the main frame, the device for gas emission can be driven to move, and the device is matched with the first lifting control mechanism to properly adjust the height of the main frame and the part connected with the main frame, so that the whole device can be moved to an area where a gas concentration detector detects higher gas concentration, and further the gas can be emitted in a smaller range;
2. the absorption frame is arranged, three parts of large objects, dust and gas can be separated through the layered design of the absorption frame, so that the gas can be collected in a centralized manner, the absorption frame is matched with the dust collection auxiliary assembly, the dust can be stored temporarily when the gas is not discharged, the large objects are prevented from blocking a pipeline of the whole device, and the processing capacity of the device in the gas process is improved;
3. the gas dilution treatment connecting assembly is matched with the corresponding butt joint assembly to realize the conduction of the dilution gas to the main discharge pipe, and the added butt joint pipes for butt joint can avoid the region range of the gas dilution treatment connecting assembly when in use, and realize the addition of the dilution gas into the main gas discharge pipe, thereby reducing the overall concentration of the gas, avoiding the potential safety hazard in the subsequent gas treatment and improving the safety performance of the device;
4. the dust collection auxiliary assembly is matched with the propulsion vehicle and the main frame body for use, so that when the gas concentration is low and gas collection is not needed, excessive dust in a coal seam tunnel can be absorbed and matched with the absorption frame for short-term storage, the dust collection device can be used as a mobile dust collection device, the problem of excessive accumulation of dust in the coal seam tunnel is effectively solved, and the practicability of the device in the coal seam is improved;
5. through the arranged dust fall auxiliary assembly, water flow is guided downwards and is matched with the atomization spray pipe to spray water, so that the coal seam roadway can be cooled, the activity of gas is reduced, and meanwhile, the sprayed water can absorb dust, so that the problem of dust raising possibly existing in the coal seam roadway is solved;
6. through the butt joint subassembly that sets up, the butt joint subassembly has set up gas outgoing's condition respectively, the leading-in condition of water and the leading-in condition of diluent gas, be gas emission simultaneously respectively, the convenience that gas dilution and dust fall processing provided, can alleviate the concentrated pressure of discharging of gas on the one hand, cooperation gas dilution handles coupling assembling, reduce the gas concentration of discharging, the security when follow-up gas is collected has been improved, the water of on the other hand cooperation dust fall uses, the inside humidity in steerable coal seam, the environment in coal seam tunnel of follow-up operation personnel during operation has been improved, and the many interfaces of butt joint subassembly set up, can further reduce gas centralized processing's pressure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a structural entirety of a gas discharge device and a gas discharge method for a mine coal seam roadway provided by the application;
fig. 2 is a schematic structural diagram of a main frame of the gas discharge device and method for a mine coal seam roadway provided by the application;
fig. 3 is a schematic structural diagram of height adjustment of a gas concentration detector of the gas discharge device and method for a mine coal seam roadway provided by the application;
fig. 4 is a schematic structural diagram of height adjustment of an L-shaped connecting frame of the gas discharge device and method for a mine coal seam roadway provided by the application;
fig. 5 is a schematic structural diagram of an absorption frame of the gas discharge device and method for a mine coal seam roadway provided by the application;
fig. 6 is a schematic structural diagram of a gas dilution processing connection assembly of the gas discharge device and the gas discharge method for the mine coal seam roadway provided by the application;
FIG. 7 is a schematic structural view of a dust collection auxiliary assembly of the gas discharge device and method for a mine coal seam roadway provided by the present application;
fig. 8 is a schematic structural diagram of a dust-settling auxiliary assembly of the gas discharge device and method for the mine coal seam roadway provided by the application;
fig. 9 is a schematic structural diagram of a docking assembly of the gas discharge device and method for a mine coal seam roadway provided by the present application;
fig. 10 is an enlarged schematic structural view of a portion a in fig. 9 of the gas discharge device and method for a mine coal seam roadway provided by the present application;
fig. 11 is a schematic plan structure view of a butt joint pipe and a straight clamping pipe clamped by steel balls in the gas discharge device and method for a mine coal seam roadway provided by the application.
1. A propulsion vehicle;
2. a main frame; 201. a fixed frame body; 2011. a caster wheel; 2012. a first limiting chute; 202. an L-shaped connecting frame; 203. a main frame body; 2031. a second limiting chute; 2032. a third limiting chute; 2033. connecting the sliding block; 2034. a gas concentration detector; 204. a first elevation control mechanism; 2041. a drive motor; 2042. a screw rod; 205. a stabilizer frame; 206. a third elevation control mechanism;
3. an absorption frame; 301. an outer frame shell; 3011. an outer clamping rail; 3012. a first rail; 3013. a grid plate; 3014. a second clamping rail; 3015. double-layer net sieve plate; 302. a cover body; 3021. a threaded pipe orifice;
4. a main gas discharge pipe;
5. the gas dilution processing connecting component; 501. a three-way pipe; 502. an air pump; 503. an air duct; 504. a first check valve;
6. a dust collection aid assembly; 601. a U-shaped pipe; 602. a gas collecting pipe; 603. a negative pressure pump; 6031. a strip-shaped fixing plate; 6032. a T-shaped sliding plate; 604. a second elevation control mechanism;
7. a dust fall assist assembly; 701. a branch water pipe; 7011. connecting a fulcrum; 7012. a miniature electric telescopic rod; 702. an atomizing nozzle; 703. a short hose; 704. a straight water pipe;
8. a docking assembly; 801. a lower straight lath; 802. a long hose; 803. a straight strip plate is arranged; 804. a micro hydraulic telescopic rod; 805. butt-joint pipes; 8051. a bayonet; 8052. a spring member; 8053. steel balls; 8054. a second one-way valve; 806. a conduction pipe; 807. and (6) directly clamping the tube.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example 1:
as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10 and fig. 11, the present embodiment provides a gas discharge device for a mine coal seam roadway, including a propulsion vehicle 1, one side of the propulsion vehicle 1 is movably connected with a main frame 2, an absorption frame 3 is detachably and fixedly arranged in the middle of the inner side of the main frame 2, a gas main discharge pipe 4 is arranged in the middle of the top end of the absorption frame 3, a gas dilution treatment connection assembly 5 is arranged on one side of the gas main discharge pipe 4, a dust collection auxiliary assembly 6 is arranged on one side of the top end of the absorption frame 3, a dust fall auxiliary assembly 7 is arranged on the outer side surface of the main frame 2, and a butt joint assembly 8 is respectively arranged at the top ends of the gas main discharge pipe 4, the gas dilution treatment connection assembly 5 and the dust fall auxiliary assembly 7;
the main frame 2 comprises a fixed frame body 201, an L-shaped connecting frame 202 and a main frame body 203 which are fixed on one side of the propulsion vehicle 1, a first lifting control mechanism 204 is arranged between the fixed frame body 201 and the L-shaped connecting frame 202 and is matched and movably connected through the first lifting control mechanism 204, the L-shaped connecting frame 202 and one side of the main frame body 203 are welded and fixed into a whole, a stabilizing frame 205 is fixedly welded on the inner side of the main frame body 203, a plurality of casters 2011 are fixedly arranged at the bottom end of the main frame body 203, and the stabilizing frame 205 is sleeved on the outer side of the main gas discharge pipe 4;
the main frame 2 moves to a place with higher gas concentration and more dust for processing along with the propulsion vehicle 1 synchronously, and the whole device moves in a matching way;
the gas dilution treatment connecting assembly 5 comprises a three-way pipe 501 fixedly sleeved on the side surface of the gas main discharge pipe 4 and communicated with the gas main discharge pipe 4, an air pump 502 is fixedly arranged on one side of the three-way pipe 501, and an air guide pipe 503 is fixedly arranged at the top end of the air pump 502;
one end of the gas dilution treatment connecting assembly 5 is communicated with a guide pipe of the diluent gas, and the other end of the gas dilution treatment connecting assembly is communicated with the main gas discharge pipe 4, so that the diluent gas is conducted to the main gas discharge pipe 4 in a one-way mode, the gas is diluted, the treatment after the gas is discharged is facilitated, after the diluent gas is led out through the conducting pipe 806, the subsequent gas treatment process can be reduced by the diluted gas, and the safety during the gas treatment is improved;
the dust collection auxiliary assembly 6 comprises a U-shaped pipe 601 and a negative pressure pump 603, the U-shaped pipe 601 is detachably fixed on one side of the top end of the absorption frame 3, a gas collecting pipe 602 is fixed in the middle of the top end of the U-shaped pipe 601 and is fixed with the negative pressure pump 603 through the gas collecting pipe 602, and a second lifting control mechanism 604 is arranged between the negative pressure pump 603 and the main frame body 203 and is movably connected through the second lifting control mechanism 604;
the dust collection auxiliary assembly 6 is used for forming negative pressure inside the absorption frame 3 so as to collect dust and temporarily store the dust, and can be used as a dust collection moving vehicle in cooperation with the dust collection auxiliary assembly 6 and the propulsion vehicle 1;
the dust fall auxiliary assembly 7 comprises a branch water pipe 701, a plurality of atomizing nozzles 702 are fixedly arranged on one side of the branch water pipe 701, and the branch water pipe 701 is fixedly connected with a straight water pipe 704 through a short hose 703 fixed at one end of the branch water pipe 701;
the dust fall auxiliary assembly 7 sprays atomized water to dust in the coal seam roadway, reduces dust raising phenomena, achieves a dust fall function, is matched with the dust collection auxiliary assembly 6 to be used, can be used as a mobile vehicle for dust fall and dust treatment in the coal seam roadway, can improve the humidity of the coal seam roadway, and further improves the working environment of the coal seam roadway;
the butt joint component 8 comprises a lower straight lath 801, a long hose 802, an upper straight lath 803, a micro hydraulic telescopic rod 804, a butt joint pipe 805 and a conduction pipe 806, wherein the lower straight lath 801 is fixed on the side surface of the top end of the straight water pipe 704, the micro hydraulic telescopic rod 804 is fixed between the upper straight lath 803 and the lower straight lath 801, one end of the long hose 802 is fixed with the straight water pipe 704, the other end of the long hose 802 penetrates through the upper straight lath 803 and is fixed with a straight clamping pipe 807, the top end of the straight clamping pipe 807 is clamped with the butt joint pipe 805, the conduction pipe 806 is fixed on the top wall of the roadway through bolts, the butt joint pipe 805 is uniformly and equidistantly fixed at the bottom end of the conducting pipe 806 and is communicated with the conducting pipe 806, high-speed flowing gas flows in the conducting pipe 806 positioned right above the gas main discharge pipe 4, low-speed flowing diluent gas flows in the conducting pipe 806 positioned right above the gas guide pipe 503, and low-speed flowing water flows in the conducting pipe 806 positioned right above the straight water pipe 704;
the three butt joint assemblies 8 are respectively connected with the gas main discharge pipe 4, the gas guide pipe 503 and the straight water pipe 704, so that the discharge and output of gas, the introduction of diluent gas and the introduction of water flow for dust fall are respectively realized, a gas discharge channel can be established when the butt joint assemblies 8 are matched with the gas main discharge pipe 4, the subsequent gas concentrated dilution process can be reduced when the butt joint assemblies 8 are matched with the gas dilution processing connecting assemblies 5, meanwhile, air flow is formed to drive gas to flow, when the butt joint assemblies 8 are matched with the dust fall auxiliary assemblies 7, the coal bed dust raising environment can be improved, meanwhile, the humidity is improved, and the process of secondary water spraying on a coal bed is reduced.
Example 2:
the scheme of example 1 is further described below in conjunction with specific working modes, which are described in detail below:
as shown in fig. 2 and 4, as a preferred embodiment, on the basis of the above manner, further, the first elevation control mechanism 204 includes a driving motor 2041 and a screw rod 2042, one side of the fixed frame 201 is provided with a first limiting chute 2012, one side of the L-shaped connecting frame 202 is slidably connected to the first limiting chute 2012 and is in threaded connection with the screw rod 2042, one end of the screw rod 2042 is movably connected inside the first limiting chute 2012 through a bearing, the driving motor 2041 is fixed at the top end of the fixed frame 201, and the output end passes through the fixed frame 204201 and is in transmission connection with the screw rod 2042 through a coupling;
when the driving motor 2041 works, the lead screw 2042 is driven to transmit, the first limiting sliding groove 2012 is matched with the sliding limiting of the L-shaped connecting frame 202 at the moment, the L-shaped connecting frame 202 can be controlled to move up and down, and the height of the whole main frame 2 and the height of a component connected with the main frame 2 are controlled.
As shown in fig. 6, as a preferred embodiment, in addition to the above-mentioned mode, a first one-way valve 504 is fixedly sleeved on a side surface of the three-way pipe 501, and a bottom end of the air pump 502 is fixed to the main frame 203;
the first check valve 504 forms a one-way flow of the diluent gas from the gas duct 503 to the gas main discharge pipe 4, and the height of the air pump 502 is fixed in accordance with the main frame 203, thereby introducing the diluent gas into the gas main discharge pipe 4 and diluting the gas therein.
As shown in fig. 7, as a preferred embodiment, in addition to the above-mentioned modes, a long strip-shaped fixing plate 6031 is fixedly arranged at the bottom end of the negative pressure pump 603 through bolts, T-shaped sliding plates 6032 are fixedly arranged at both ends of the long strip-shaped fixing plate 6031, a second limit sliding chute 2031 is formed in the side surface of the main frame body 203, the structure of the second elevation control mechanism 604 is the same as that of the first elevation control mechanism 204, and the T-shaped sliding plate 6032 is slidably connected in the second limit sliding chute 2031 and is in threaded connection with a screw 2042 on the second elevation control mechanism 604;
the driving motor 2041 on the second lifting control mechanism 604 works to drive the lead screw 2042 connected with the second lifting control mechanism to rotate, the second limiting chute 2031 is matched to limit the sliding of the T-shaped sliding plate 6032, the height of the T-shaped sliding plate 6032 can be controlled, the height of the elongated fixing plate 6031 and the negative pressure pump 603 can be controlled, the height of the whole dust collecting auxiliary assembly 6 can be controlled, and the subsequent dust in the absorption frame 3 can be cleaned conveniently.
As shown in fig. 5, as a preferred embodiment, in addition to the above-mentioned mode, the absorption frame 3 further includes an outer frame shell 301 and a cover 302, the outer frame shell 301 and the cover 302 are fixed by bolts, the top middle part of the cover 302 is fixed with the gas main discharge pipe 4, two threaded pipe ports 3021 are fixedly arranged on one side of the top end of the cover 302, and the threaded pipe ports 3021 are matched and screwed with the bottom ends of the U-shaped pipes 601;
the lid 302 can seal outer casing shell 301, and utilizes outer casing shell 301 as the sunction inlet of gas and dust, and gas cooperation gas owner discharge pipe 4 discharges, realizes absorbing the gas in coal seam tunnel and discharges.
As shown in fig. 5, as a preferred embodiment, in addition to the above-mentioned mode, further, an outer casing of the outer casing shell 301 is fixedly provided with an outer clamping rail 3011 which is in fit and clamped connection with the stabilizing frame 205, and one side of the inner wall of the outer casing shell 301 is fixedly provided with a first clamping rail 3012, and the first clamping rail 3012 is clamped with a grid plate 3013, and the middle part of the inner wall of the outer casing shell 301 is fixedly provided with a second clamping rail 3014, and the second clamping rail 3014 is clamped with a double-layer mesh screen plate 3015, and the inner side of one end of the threaded pipe port 3021 located inside the outer casing shell 301 is fixedly provided with a separation filter screen;
As shown in fig. 8, in addition to the above-mentioned embodiment, further, both ends of one side of the branch water pipe 701, which is far away from the atomizing nozzle 702, are fixedly welded with a connection fulcrum 7011, a micro electric telescopic rod 7012 is fixedly arranged between the connection fulcrum 7011 and the main frame 203, and the straight water pipe 704 is fixed on one side of the top end of the main frame 203;
utilize miniature electric telescopic handle 7012's flexible characteristic, cooperation short hose 703 uses, and steerable tributary water pipe 701's position has improved atomizing spout 702's the scope that sprays, and then has improved the effect of dust fall.
As shown in fig. 9, 10 and 11, as a preferred embodiment, on the basis of the above manner, further, a plurality of bayonets 8051 are fixedly provided on a side surface of the docking pipe 805, a spring member 8052 is fixedly provided inside the bayonets 8051, one end of the spring member 8052 is fixedly provided with a steel ball 8053, one side of the steel ball 8053 passes through the bayonets 8051 and is clamped with an inner wall of the straight bayonet pipe 807, and a second one-way valve 8054 is fixedly sleeved on the side surface of the docking pipe 805;
when the docking pipe 805 is connected to the inside of the straight bayonet pipe 807, the spring member 8052 pushes the steel ball 8053 to pass through the bayonet 8051 and be clamped with the inner wall of the straight bayonet pipe 807, so as to improve the stability of connection between the docking pipe 805 and the straight bayonet pipe 807, and the second one-way valve 8054 can control the fluid to be conducted in one way, so that the backflow phenomenon is avoided.
As shown in fig. 2 and 3, as a preferred embodiment, in addition to the above-mentioned embodiments, a third elevation control mechanism 206 is further disposed on one side of the main frame body 203 close to the fixed frame body 201, the third elevation control mechanism 206 has the same structure as the first elevation control mechanism 204, a third limiting chute 2032 is disposed on one side of the main frame body 203, a connecting slider 2033 is slidably connected inside the third limiting chute 2032, one end of the connecting slider 2033 is fixedly connected with a gas concentration detector 2034, and the connecting slider 2033 is in threaded connection with a screw 2042 on the third elevation control mechanism 206;
the third limiting chute 2032 is matched with the third lifting control mechanism 206 to control the height adjustment of the connecting slide block 2033, so that the height of the gas concentration detector 2034 is adjusted, and the concentration detection area range of the gas concentration detector 2034 is widened.
Example 3:
the schemes of example 1 and example 2 are further described below in conjunction with specific working examples, which are described in detail below:
specifically, the gas discharge device and method for the mine coal seam roadway are as follows:
at first utilize the fixed support body 201 of propulsion car 1 work promotion to remove, cooperation truckle 2011 promotes the body frame 203 and removes, realizes removing whole device, removes the joint between in-process cooperation steady rest 205 and the outer card rail 3011, stability when improving the device and removing, then detects gas concentration through gas concentration detector 2034, confirms the stop point of device, specifically is: the driving motor 2041 in the third elevation control mechanism 206 operates to drive the screw rod 2042 in the third elevation control mechanism 206 to rotate, and the third limiting chute 2032 is matched to limit the sliding of the connecting slide block 2033 and the gas concentration detector 2034, so that the height of the gas concentration detector 2034 can be controlled, and the concentration detection area range of the gas concentration detector 2034 can be further enlarged;
in the advancing process of the propulsion vehicle 1, the first elevation control mechanism 204 can be used for controlling the heights of the main frame 2 and the structure connected with the main frame 2, specifically: the driving motor 2041 works and drives the screw rod 2042 to transmit, and at the moment, the sliding limit of the L-shaped connecting frame 202 by matching with the first limit sliding chute 2012 is realized, so that the L-shaped connecting frame 202 can be controlled to move up and down, the height of the whole main frame 2 and the height of a component connected with the main frame 2 can be controlled, and the problem that the whole device is limited by terrain and is difficult to move is avoided;
then, the butt joint assembly 8 is respectively butted with the gas main discharge pipe 4, the gas guide pipe 503 and the straight water pipe 704, and the preparation work is completed, specifically: the micro hydraulic telescopic rod 804 works and pushes the upper straight strip plate 803 to rise, then the long hose 802 is driven to rise, at the moment, the height of the straight clamping pipe 807 is synchronously increased and is clamped with the butt joint pipe 805, in the process, the spring part 8052 pushes the steel ball 8053 to penetrate through the clamping opening 8051 and be clamped with the inner wall of the straight clamping pipe 807, the connection stability between the butt joint pipe 805 and the straight clamping pipe 807 is improved, and the second one-way valve 8054 can control the fluid to conduct in one way, so that the backflow phenomenon is avoided;
after the butt joint is completed, because the gas flowing at high speed is in the conduction pipe 806 positioned right above the gas main discharge pipe 4, the diluent gas flowing at low speed is in the conduction pipe 806 positioned right above the gas guide pipe 503, and the water flowing at low speed is in the conduction pipe 806 positioned right above the straight water pipe 704, the downward introduction of the diluent gas and the water flow and the upward derivation of the gas can be realized;
when the gas concentration exceeds the value to be discharged, the outward discharge of the gas is completed by matching the gas main discharge pipe 4 and the absorption frame 3, and the method specifically comprises the following steps: a second one-way valve 8054 on the conduction pipe 806 positioned right above the gas main discharge pipe 4 is opened, and is matched with gas flowing at a high speed, so that negative pressure is formed in the gas main discharge pipe 4, dust and gas are led in from the absorption frame 3, pass through the gas main discharge pipe 4 and finally reach the conduction pipe 806 connected with the gas main discharge pipe 4 to be discharged, in the process, the grating plate 3013 can block objects with larger sizes, the dust and gas are prevented from entering the absorption frame 3, and then the double-layer screen plate 3015 and the separation filter screen can prevent the dust from passing through;
when the gas outwards discharges, utilize gas dilution to handle 5 leading-in gaseous realization to gas main discharge pipe 4 in to gas and dilute the dilution of handling coupling assembling, absorb frame 3 simultaneously and can intercept large-scale object and dust, realize the separation processing of gas and dust, specifically do: the air pump 502 guides the diluent gas in a conduction pipe 806 connected with the air guide pipe 503 into the three-way pipe 501 and enters the main gas discharge pipe 4, and the value of the introduced gas is selected according to the diluent amount, so that the diluent discharge of the gas is realized;
when gas concentration did not reach the value that needs to discharge, and need carry out the dust fall of dust and handle, utilize the dust to collect 6 improvement dust collection efficiencies of auxiliary assembly to cooperation dust fall auxiliary assembly 7 improves the dust fall effect, specifically does: closing the first one-way valve 504, closing the gas main discharge pipe 4, then operating the negative pressure pump 603 to form negative pressure in the gas collecting pipe 602 and the U-shaped pipe 601, increasing the suction of external dust, keeping the dust between the double-layer mesh screen plate 3015 and the grid plate 3013 to complete the collection of the dust, simultaneously opening the second one-way valve 8054 on the conduction pipe 806 positioned right above the straight water pipe 704, guiding the water flow in the conduction pipe 806, increasing the flow velocity of the water flow by using gravitational potential energy, then spraying the water flow through the short hose 703, the branch water pipe 701 and the atomizing nozzle 702 to realize a dust fall effect, and in the dust fall process, controlling the position of the branch water pipe 703 by using the telescopic characteristic of the miniature electric telescopic rod 7012 in cooperation with the short hose, improving the spraying range of the atomizing nozzle 702 and further improving the dust fall effect;
when dust is collected to a certain value, the connection between the threaded pipe port 3021 and the U-shaped pipe 601 is separated, then the driving motor 2041 on the second lifting control mechanism 604 works to drive the screw rod 2042 connected with the second lifting control mechanism to rotate, the height of the T-shaped sliding plate 6032 can be controlled by matching with the sliding limitation of the second limiting chute 2031 on the T-shaped sliding plate 6032, and further the heights of the elongated fixing plate 6031 and the negative pressure pump 603 are controlled, so that the height of the whole dust collection auxiliary assembly 6 is controlled, then the bolt is taken out and the outer frame shell 301 and the cover body 302 are separated, and the dust in the outer frame shell 301 can be intensively treated;
thus, the use of the whole device can be completed.
The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.
Claims (10)
1. The gas discharge device for the mine coal seam roadway comprises a propulsion vehicle (1) and is characterized in that one side of the propulsion vehicle (1) is movably connected with a main frame (2), an absorption frame (3) is detachably and fixedly arranged in the middle of the inner side of the main frame (2), a gas main discharge pipe (4) is arranged in the middle of the top end of the absorption frame (3), a gas dilution processing connection assembly (5) is arranged on one side of the gas main discharge pipe (4), a dust collection auxiliary assembly (6) is arranged on one side of the top end of the absorption frame (3), a dust fall auxiliary assembly (7) is arranged on the outer side surface of the main frame (2), and a butt joint assembly (8) is respectively arranged at the top ends of the gas main discharge pipe (4), the gas dilution processing connection assembly (5) and the dust fall auxiliary assembly (7);
the main frame (2) comprises a fixed frame body (201) fixed on one side of the propulsion vehicle (1), an L-shaped connecting frame (202) and a main frame body (203), and a first lifting control mechanism (204) is arranged between the fixed frame body (201) and the L-shaped connecting frame (202);
the gas dilution treatment connecting assembly (5) comprises a three-way pipe (501) fixedly sleeved on the side surface of the gas main discharge pipe (4) and communicated with the gas main discharge pipe (4), an air pump (502) is fixedly arranged on one side of the three-way pipe (501), and an air guide pipe (503) is fixedly arranged at the top end of the air pump (502);
the dust collection auxiliary assembly (6) comprises a U-shaped pipe (601) and a negative pressure pump (603), a gas collecting pipe (602) is fixed in the middle of the top end of the U-shaped pipe (601) and is fixed with the negative pressure pump (603) through the gas collecting pipe (602), and a second lifting control mechanism (604) is arranged between the negative pressure pump (603) and the main frame body (203) and is movably connected through the second lifting control mechanism (604);
the dust fall auxiliary assembly (7) comprises a branch water pipe (701), a plurality of atomizing nozzles (702) are fixedly arranged on one side of the branch water pipe (701), and the branch water pipe (701) is fixedly connected with a straight water pipe (704) through a short hose (703) fixed at one end of the branch water pipe;
the butt joint assembly (8) comprises a lower straight lath (801), a long hose (802), an upper straight lath (803), a micro hydraulic telescopic rod (804), a butt joint pipe (805) and a conduction pipe (806), wherein the micro hydraulic telescopic rod (804) is fixed between the upper straight lath (803) and the lower straight lath (801), one end of the long hose (802) is fixed with the straight water pipe (704), and the other end of the long hose (802) penetrates through the upper straight lath (803) and is fixed with a straight clamping pipe (807).
2. The gas discharge device for the coal seam roadway of the mine as claimed in claim 1, wherein the first lifting control mechanism (204) comprises a driving motor (2041) and a screw rod (2042), the L-shaped connecting frame (202) is in threaded connection with the screw rod (2042), the driving motor (2041) is fixed at the top end of the fixed frame body (201), and the output end passes through the fixed frame body (201) and is in transmission connection with the screw rod (2042) through a coupling.
3. The gas discharge device for the coal seam roadway of the mine as claimed in claim 2, wherein the side surface of the three-way pipe (501) is fixedly sleeved with a first one-way valve (504), and the bottom end of the air pump (502) is fixed with the main frame body (203).
4. The gas discharge device for the mine coal seam roadway according to claim 3, wherein a strip-shaped fixing plate (6031) is fixedly arranged at the bottom end of the negative pressure pump (603) through bolts, T-shaped sliding plates (6032) are fixedly arranged at both ends of the strip-shaped fixing plate (6031), a second limiting sliding groove (2031) is formed in the side surface of the main frame body (203), the structure of the second lifting control mechanism (604) is the same as that of the first lifting control mechanism (204), and the T-shaped sliding plates (6032) are slidably connected in the second limiting sliding groove (2031) and in threaded connection with a screw rod (2042) on the second lifting control mechanism (604).
5. The gas discharge device for the coal seam roadway of the mine as claimed in claim 4, wherein the absorption frame (3) comprises an outer frame shell (301) and a cover body (302), the outer frame shell (301) and the cover body (302) are fixed through bolts, the middle part of the top end of the cover body (302) is fixed with the gas main discharge pipe (4), one side of the top end of the cover body (302) is fixedly provided with two threaded pipe orifices (3021), and the threaded pipe orifices (3021) are in threaded connection with the bottom ends of the U-shaped pipes (601) in a matching manner.
6. The gas discharging device in mine coal seam roadway according to claim 5, characterized in that a stabilizing frame (205) is fixedly welded on the inner side of the main frame body (203), an outer clamping rail (3011) which is matched and clamped with the stabilizing frame (205) is fixedly arranged on the outer shell of the outer frame shell (301), a first clamping rail (3012) is fixedly arranged on one side of the inner wall of the outer frame shell (301), a grid plate (3013) is clamped on the first clamping rail (3012), a second clamping rail (3014) is fixedly arranged in the middle of the inner wall of the outer frame shell (301), a double-layer screen plate (3015) is clamped on the second clamping rail (3014), and a separation filter screen is fixedly arranged on the inner side of one end, located inside the outer frame shell (301), of the threaded pipe orifice (3021).
7. The gas discharge device for the coal seam roadway of the mine as claimed in claim 1, wherein both ends of one side of the branch flow water pipe (701) far away from the atomizing nozzle (702) are fixedly welded with connecting pivots (7011), a miniature electric telescopic rod (7012) is fixedly arranged between the connecting pivots (7011) and the main frame body (203), and the straight water pipe (704) is fixed on one side of the top end of the main frame body (203).
8. The gas discharge device for the coal seam roadway of the mine as claimed in claim 1, wherein the top end of the straight clamping pipe (807) is clamped with the butt joint pipe (805), the butt joint pipe (805) is uniformly and equidistantly fixed at the bottom end of the conduction pipe (806) and communicated with the conduction pipe (806), a plurality of bayonets (8051) are fixedly arranged on the side surface of the butt joint pipe (805), a spring member (8052) is fixed inside the bayonets (8051), a steel ball (8053) is fixedly arranged at one end of the spring member (8052), one side of the steel ball (8053) passes through the bayonets (8051) and is clamped with the inner wall of the straight clamping pipe (807), and a second one-way valve (8054) is fixedly sleeved on the side surface of the butt joint pipe (805).
9. The gas discharge device for the mine coal seam roadway according to claim 8, wherein a third lifting control mechanism (206) is arranged on one side, close to the fixed frame body (201), of the main frame body (203), the third lifting control mechanism (206) is identical in structure to the first lifting control mechanism (204), a third limiting sliding groove (2032) is formed in one side of the main frame body (203), a connecting slide block (2033) is connected inside the third limiting sliding groove (2032) in a sliding manner, a gas concentration detector (2034) is fixedly connected to one end of the connecting slide block (2033), and the connecting slide block (2033) is in threaded connection with a screw rod (2042) located on the third lifting control mechanism (206).
10. A method for discharging gas in a mine coal seam tunnel, which is characterized in that the device for discharging the gas in the mine coal seam tunnel according to claim 9 comprises the following specific steps:
step S1: the propelling car (1) works and is matched with the main frame (2) to move the whole device, the gas concentration is detected by a gas concentration detector (2034), and the stopping point of the device is determined;
step S2: the butt joint component (8) is respectively butted with the gas main discharge pipe (4), the gas guide pipe (503) and the straight water pipe (704) to finish the preparation work;
step S3: when the gas concentration exceeds the value to be discharged, the outward discharge of the gas is completed by matching the gas main discharge pipe (4) and the absorption frame (3);
step S4: when the gas is discharged outwards, the gas is introduced into the gas main discharge pipe (4) by using the gas dilution treatment connecting assembly (5) to dilute the gas, and meanwhile, the absorption frame (3) can intercept large objects and dust to realize the separation treatment of the gas and the dust;
step S5: when the gas concentration does not reach the value to be discharged and dust fall treatment of dust is required, the dust collection efficiency is improved by the aid of the dust collection auxiliary assembly (6), and the dust collection effect is improved by the aid of the dust collection auxiliary assembly (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210701462.0A CN114837734B (en) | 2022-06-21 | 2022-06-21 | Gas discharge device and method for mine coal seam roadway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210701462.0A CN114837734B (en) | 2022-06-21 | 2022-06-21 | Gas discharge device and method for mine coal seam roadway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114837734A true CN114837734A (en) | 2022-08-02 |
| CN114837734B CN114837734B (en) | 2023-02-07 |
Family
ID=82575156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210701462.0A Active CN114837734B (en) | 2022-06-21 | 2022-06-21 | Gas discharge device and method for mine coal seam roadway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114837734B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661166A (en) * | 2012-05-03 | 2012-09-12 | 河南理工大学 | Method for purifying gas extracted by mine by using ionic liquid |
| CN114000913A (en) * | 2021-10-22 | 2022-02-01 | 华能云南滇东能源有限责任公司 | Automatic control and monitoring device for hole plate flowmeter for coal mine gas extraction pipeline |
| CN216714459U (en) * | 2021-10-22 | 2022-06-10 | 华能云南滇东能源有限责任公司 | Automatic control monitoring device for orifice plate flowmeter for coal mine gas extraction pipeline |
-
2022
- 2022-06-21 CN CN202210701462.0A patent/CN114837734B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102661166A (en) * | 2012-05-03 | 2012-09-12 | 河南理工大学 | Method for purifying gas extracted by mine by using ionic liquid |
| CN114000913A (en) * | 2021-10-22 | 2022-02-01 | 华能云南滇东能源有限责任公司 | Automatic control and monitoring device for hole plate flowmeter for coal mine gas extraction pipeline |
| CN216714459U (en) * | 2021-10-22 | 2022-06-10 | 华能云南滇东能源有限责任公司 | Automatic control monitoring device for orifice plate flowmeter for coal mine gas extraction pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114837734B (en) | 2023-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114837734B (en) | Gas discharge device and method for mine coal seam roadway | |
| CN201037426Y (en) | Support coal discharge injection negative pressure atomization dust remover | |
| CN215427076U (en) | Have smoke abatement concurrently and purify and fire extinguishing function's fire control dolly | |
| CN103007713B (en) | Moveable emergency system for treating leakage of acute dangerous chemical gas | |
| CN111167225A (en) | Device for quickly eliminating instantaneous smoke in coal mine underground blasting operation space and using method | |
| CN209761380U (en) | Coal mine underground drilling blowout prevention and dust removal device | |
| CN106437821A (en) | System for purifying air in tunnel | |
| CN214680919U (en) | A device that is used for boats and ships planking spraying VOCs waste gas collection to handle | |
| CN216381483U (en) | Tunnel construction is with tunnel automatic spray maintenance platform truck of high-efficient purification | |
| CN113027452B (en) | Multistage multidimensional atomization dust control method and device for large-mining-height fully-mechanized mining face | |
| CN213144517U (en) | Ventilation unit for coal mine safety | |
| CN105999958B (en) | A kind of wind mist convection type mining high efficiency wet scrubber | |
| CN205277482U (en) | Intelligence infrared induction water curtain dust removal system | |
| CN201423219Y (en) | Environment-friendly harmful gas filtering and purifying device | |
| CN113144480A (en) | Have smoke abatement concurrently and purify and fire extinguishing function's fire control dolly | |
| CN208493714U (en) | A kind of New honeycomb shaped activated carbon exhaust gas adsorption plant | |
| CN218191639U (en) | Coal mining ash-absorbing equipment for coal mine | |
| CN212119308U (en) | Device for quickly eliminating instantaneous smoke in blasting operation space of underground coal mine | |
| CN219580166U (en) | Construction dust fall device | |
| CN215234100U (en) | Movable automatic chemical liquid adding device for closed space | |
| CN211660348U (en) | VOCs purifier to remove canopy that sprays paint | |
| CN218575218U (en) | Water seal groove type sliding rail dust collecting device for collecting raised dust | |
| CN213003359U (en) | Automatic gas supply system for laser cutting machine | |
| CN210302998U (en) | Industrial waste gas treatment spray set | |
| CN213253656U (en) | Industrial waste gas collection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20220802 Assignee: No. 29 Engineering Department of China Coal No. 3 Construction (Group) Corp.,Ltd. Assignor: HUANENG YUNNAN DIANDONG ENERGY Co.,Ltd. Contract record no.: X2023980053950 Denomination of invention: A gas emission device and method for coal seam tunnels in mines Granted publication date: 20230207 License type: Common License Record date: 20231229 |
|
| EE01 | Entry into force of recordation of patent licensing contract |