CN116291716A - Goaf sealing device is used in mine - Google Patents
Goaf sealing device is used in mine Download PDFInfo
- Publication number
- CN116291716A CN116291716A CN202310463962.XA CN202310463962A CN116291716A CN 116291716 A CN116291716 A CN 116291716A CN 202310463962 A CN202310463962 A CN 202310463962A CN 116291716 A CN116291716 A CN 116291716A
- Authority
- CN
- China
- Prior art keywords
- sealing
- cavity
- goaf
- wall
- gas
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 397
- 239000007789 gas Substances 0.000 claims abstract description 122
- 238000005070 sampling Methods 0.000 claims abstract description 55
- 238000000605 extraction Methods 0.000 claims abstract description 45
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 239000004576 sand Substances 0.000 claims abstract description 25
- 238000005086 pumping Methods 0.000 claims description 87
- 238000003860 storage Methods 0.000 claims description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 55
- 238000004891 communication Methods 0.000 claims description 32
- 239000001307 helium Substances 0.000 claims description 8
- 229910052734 helium Inorganic materials 0.000 claims description 8
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 8
- 230000005389 magnetism Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 4
- 238000000429 assembly Methods 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 2
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 12
- 239000003245 coal Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000009423 ventilation Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 238000005065 mining Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008961 swelling Effects 0.000 description 4
- 238000003915 air pollution Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011796 hollow space material Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition 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
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
- E21F17/107—Dams, e.g. for ventilation inflatable
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a goaf sealing device for mines, which comprises a working face air inlet and return roadway, wherein a first sealing wall and a second sealing wall are arranged in the working face air inlet and return roadway, a sealing cavity is arranged between the first sealing wall and the second sealing wall, fine sand is filled in the sealing cavity, a sealing filling assembly is arranged in the sealing cavity and is in through connection with the first sealing wall, a plurality of groups of sealing filling assemblies are arranged, and the first sealing wall and the second sealing wall are communicated with a goaf gas detection pipe and a gas extraction pipe. The invention belongs to the technical field of mine prevention and treatment, and particularly relates to a goaf sealing device for a mine, wherein a gas sampling device is used for extracting gas in the goaf; and the nitrogen filled in the sealing filling bag-shaped part can push fine sand to fill the gap when the tunnel, the first sealing wall and the second sealing wall are cracked, so that the sealing technical effect is realized.
Description
Technical Field
The invention belongs to the technical field of mine prevention and treatment, and particularly relates to a goaf sealing device for a mine.
Background
When the coal mine is mined, particularly under the conditions of mining of a coal seam group and mining of thick coal seams in a layering manner, gas can be flushed out from adjacent coal seams, non-mining layering and surrounding rocks and the like to the goaf, sealing measures are adopted in most of the goaf, high-concentration gas can exist in the goaf, and spontaneous combustion of float coal in the goaf is possible, so that safe production of the adjacent coal seams or mining working faces in a layering manner is seriously threatened. In order to prevent gas in the goaf from flowing into the mining working face, technicians continuously pump the goaf gas to reduce the concentration of the goaf gas.
The goaf gas extraction must guarantee the effective seal of goaf in the same time, at present, the sealing measure of goaf mainly utilizes the seal wall to seal the goaf, the seal wall has two-layer wall body, the wall body is built by brick cement and forms, fill by loess between two-layer wall body, fill through loess between seal wall and the direct top of tunnel equally, its sealed effect is not very ideal, the emergence probability of incident is still very high, concrete reason is as follows:
A. at present, most of the sealing wall structures are thickened silt brick wall structures, and the sealing effect is poor;
B. cracks generated after surrounding rocks around a roadway are affected by dynamic pressure are difficult to well block, and the sealing effect is still poor;
C. the wall body itself can produce the crack because of long-time dynamic pressure to and also can exist the gap between wall body and the tunnel, can not play the purpose of shutoff windage at this moment.
Meanwhile, in order to observe and master the fire occurrence situation of the coal mine goaf in time, the gas in the coal mine goaf needs to be observed and analyzed, and whether the gas in the goaf can be accurately collected is a key of whether the natural ignition prediction and forecast work of the coal mine is accurate or not; however, for the coal mine with positive pressure ventilation or large pressure difference between the inside and outside of the sealed goaf, the air pump sampling has the problems of inaccurate air sample collection, long air extraction time and the like, and the direct result is inaccurate air sample collection and low efficiency.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the goaf sealing device for the mine, the gas sampling device seals the goaf gas detection tube, and simultaneously extracts and adopts the gas in the goaf, thereby reducing the external air pollution and overcoming the problems of inaccurate gas sample collection, inaccurate gas sample, long gas extraction time and the like in the prior art;
the arrangement of the first elastic piece and the second elastic piece in the first sealing wall and the second sealing wall can fill and seal new cracks;
the nitrogen gas that fills in the sealed bag nature spare can promote fine sand to fill to the gap when tunnel and first sealed wall and second sealed wall appear the crack, realizes sealed technological effect, and pressure sensor can real-time supervision to the condition in the sealed cavity simultaneously.
The technical scheme adopted by the invention is as follows: the goaf sealing device for the mine comprises a working face air inlet roadway, a first sealing wall and a second sealing wall are arranged in the working face air inlet roadway, a sealing cavity is arranged between the first sealing wall and the second sealing wall, fine sand is filled in the sealing cavity, the second sealing wall is arranged close to the goaf, a sealing filling assembly is arranged in the sealing cavity and is in through connection with the first sealing wall, a plurality of groups of sealing filling assemblies are arranged in the sealing cavity, the sealing filling assembly is arranged between fine sand, goaf gas detection pipes and gas extraction pipes are communicated with the first sealing wall and the second sealing wall, one end of each goaf gas detection pipe is arranged in the goaf, the other end of each goaf gas detection pipe is in through connection with the working face air inlet roadway, one end of each gas extraction pipe is arranged in the goaf, and the other end of each gas extraction pipe is in through connection with the working face air inlet roadway;
the gas sampling device is arranged in the goaf gas detection tube, seals the goaf gas detection tube, simultaneously extracts and adopts the gas in the goaf, reduces the external air pollution, and solves the problems of inaccurate gas sample collection, long air extraction time and the like in the prior art;
the sealing filling assembly comprises a sealing filling bag member, a sealing communicating member and a sealing insert member, wherein the sealing communicating member is arranged in the sealing filling tube, the outer side wall of the sealing communicating member is in sealing connection with the inner side wall of the sealing filling tube, the sealing communicating member is in through connection with the sealing filling tube, the sealing filling bag member is arranged in the sealing chamber, the sealing filling bag member is in through connection with one end of the sealing communicating member, deformation can occur under the action of external force of the sealing filling bag member, threads are arranged at the other end of the sealing communicating member, the sealing insert member is movably arranged in the sealing filling tube and in threaded connection with the other end of the sealing communicating member, the sealing insert member seals the sealing filling tube, a first control valve is arranged in the sealing communicating member and is used for controlling the opening and closing of the sealing communicating member, and a pressure sensor is arranged in the sealing filling bag member and is used for detecting the pressure intensity in the sealing filling bag member;
firstly, sealing a second sealing wall at a position close to a goaf, then constructing a first sealing wall at a position with a certain distance from the second sealing wall, continuously filling fine sand in the process of constructing the first sealing wall, simultaneously installing a sealing inflation tube and a sealing filling assembly from bottom to top until the first sealing wall is constructed, filling fine sand into a sealing cavity, taking down a sealing plug-in unit from the sealing inflation tube, inserting an external vent tube into the sealing inflation tube, opening a control valve, filling nitrogen into the sealing filling bag, swelling the sealing filling bag, filling fine sand into a gap in the sealing cavity, simultaneously extruding the sealing filling bag by the fine sand, increasing the pressure in the sealing filling bag, recording the pressure by a pressure sensor, closing the control valve, taking out the vent tube, inserting the sealing plug-in unit into the sealing inflation tube, realizing sealing of the sealing inflation tube, generating a gap after surrounding rock around a roadway is affected by pressure, and generating the sealing plug-in unit by long-time pressure, enabling sand to flow into the gap, filling sand into the gap, extruding the sealing filling bag by the sealing filling bag, reducing the sealing filling bag, and transmitting data to the sealing bag in the sealing cavity, and reducing the whole filling bag, and transmitting the pressure to the sealing bag.
The gas sampling device comprises a water pumping piece, a gas sampling assembly, a first sealing block, a second sealing block and a sealing communication assembly, wherein the first sealing block and the second sealing block are arranged in a goaf gas detection pipe, the first sealing block and the second sealing block are used for sealing the goaf gas detection pipe, a sampling gas pipe is communicated with the second sealing block, one end of the sampling gas pipe is in through connection with the goaf, the sealing communication assembly is arranged in the first sealing block, the other end of the sampling gas pipe is in through connection with the sealing communication assembly, one end of the gas sampling assembly is movably arranged in the sealing communication assembly, the other end of the gas sampling assembly is arranged in a working face air inlet and return roadway, one end of the water pumping piece is movably arranged in the sealing communication assembly, and the other end of the water pumping piece is arranged in the working face air inlet and return roadway.
Further, sealed intercommunication subassembly includes communication pipeline one, communication pipeline two, deposits chamber two and deposits chamber one, deposit chamber one and deposit chamber two and locate in the sealing block one, deposit chamber one and deposit and be connected with the control valve six between the chamber two, deposit chamber one and deposit chamber two intussuseption and filled with water, it has filled with and has deposited chamber one and deposit in the chamber two to deposit chamber one, it is connected with the connecting chamber to deposit chamber one upper wall, the connecting chamber is connected with depositing chamber one, the tracheal other end and deposit chamber one through connection for the sampling, be equipped with the check valve in the sampling trachea, deposit chamber one in gas and the water can not pass through the check valve discharge deposit chamber one, the gas in the sampling trachea passes through the check valve and deposits in the chamber one, it locates in the sealing block one to deposit chamber one, the other end and the connecting chamber through connection of communicating pipeline one, the connecting pipeline one and the setting of sealing block one are located to the communicating pipeline two, the connecting pipeline one end and the chamber two through connection of chamber two, the connecting pipeline one is equipped with the sealing block one through connection, the sealing ring is equipped with to be equipped with to deposit between the magnetic seal ring is equipped with to the magnetic seal, and is equipped with the magnetic seal.
Preferably, the pumping part comprises a pumping shell, a pumping pulling part and a piston II, one end of the pumping shell is movably arranged in the second communicating pipeline, the other end of the pumping shell is arranged in a working face air inlet roadway, the pumping pulling part is movably arranged in the pumping shell, the piston II is connected with the pumping pulling part, the piston II is movably connected with the pumping shell in a sealing manner, the piston is similar to that in a syringe, a control valve V and a magnetic part IV are arranged at one end of the pumping shell, the magnetic part IV is close to the magnetic part III, and the magnetic part IV is different from the magnetic part III in magnetism.
As a preferred aspect of the present invention, the gas sampling assembly includes a casing for air extraction, an air extraction pull member, and a piston one, one end of the casing for air extraction is movably disposed in the first communication pipe, the other end of the casing for air extraction is disposed in the air intake and return channel of the working surface, the air extraction pull member is movably disposed in the casing for air extraction, the piston one is connected with the air extraction pull member, the piston one is movably and hermetically connected with the casing for air extraction, similar to a piston in an injector, one end of the casing for air extraction is provided with a control valve two and a magnetic member one, the magnetic member one is disposed close to the magnetic member two, and the magnetic member one is different from the magnetic member two.
The first storage cavity is internally provided with a first water level detection sensor, the second connection cavity is internally provided with a second water level detection sensor, the first water level detection sensor is arranged at the six upper ends of the control valve, and the second water level detection sensor is arranged at the three lower ends of the control valve;
in the beginning, a piston II is arranged at a control valve V, a piston I is arranged at the control valve II, a pumping part is inserted into a communication pipeline II, a magnetic part III is connected with a magnetic part IV, a gas sampling assembly is inserted into the communication pipeline I, the magnetic part I is connected with the magnetic part II, a rubber ring is used for sealing a space between a pumping shell and the control valve IV and sealing a space between the pumping shell and the control valve III, the control valve IV and the control valve VI are opened, an external force is used for drawing a pumping pulling part, the pumping pulling part drives the piston to move outwards, water in the storage cavity II is pumped into the pumping shell, water in the storage cavity I flows into the storage cavity II, the pressure in the storage cavity I and the storage cavity II is reduced, the elastic part three-way storage cavity I is expanded, then the one-way control valve is opened, gas in a goaf is rapidly pumped into the storage cavity I through a sampling gas pipe, the first water level detecting sensor detects the water level in the first storage cavity, the one-way control valve is closed after the water level is lower than a set value, the third control valve and the second control valve are opened, the pumping pulling piece is pulled by external force, the pumping pulling piece drives the piston to move outwards, gas in the first storage cavity is pumped into the pumping shell, the pumping pulling piece is pushed at the same time, the pumping pulling piece pushes the piston to move inwards, water in the second storage cavity is pushed into the second storage cavity from the pumping shell, water in the second storage cavity flows into the first storage cavity, the water level in the first storage cavity rises, goaf gas in the first storage cavity enters the pumping shell through the connecting cavity, the second control valve, the third control valve, the fourth control valve and the sixth control valve are closed when the water level detecting sensor detects the water level, and the pumping piece and the gas sampling component are taken down, the sampling gas is sealed into the pumping housing.
Further, the first sealing wall and the second sealing wall have the same structure, a sealing cavity is arranged in the first sealing wall, the sealing cavity is respectively arranged at the upper end and the lower end of the first sealing cavity, an elastic piece I is arranged in the sealing cavity, an elastic piece II is arranged at the end part of the sealing cavity, the elasticity of the elastic piece II is better than that of the elastic piece I, when the elastic piece II is subjected to the same external force, the spring II is easier to deform, a vent pipe is arranged on the first sealing wall, and the vent pipe penetrates through the sealing cavity and is arranged in the spring II; the external ventilation equipment is connected with the ventilation pipe to convey helium into the elastic piece II, the elastic piece II fills and seals the bottom wall and the upper wall of the roadway after deformation and swelling occur under the filling of gas, meanwhile, the elastic piece I continues to expand, but the expansion speed of the elastic piece I is smaller than that of the elastic piece II, after the elastic piece II is filled, along with the continuous conveying of the helium, the elastic piece I continues to expand until the joint sealing cavity is arranged, when new cracks appear at the joint of the first sealing wall and the second sealing wall with the roadway, the elastic piece II continues to deform under the filling of gas in the elastic piece I, and further fills and seals the cracks.
Preferably, a one-way control valve is arranged in the vent pipe, and the air in the first elastic piece and the second elastic piece cannot be discharged, but external air can enter.
After the structure is adopted, the invention has the following beneficial effects:
(1) The gas sampling device seals the goaf gas detection tube, and simultaneously the gas sampling device performs sealed extraction and adoption on the gas in the goaf, so that the pollution of external air is reduced, and the problems that a gas sample cannot be acquired, the gas sample is inaccurate, the air extraction time is long and the like in the prior art are overcome.
(2) The elastic piece III in the gas adoption assembly can change the pressure intensity in the first storage cavity, so that the technical effect of rapid extraction of the gas in the goaf is realized.
(3) The arrangement of the first elastic piece and the second elastic piece in the first sealing wall and the second sealing wall can fill and seal new cracks.
(4) The nitrogen gas that fills in the sealed bag nature spare can promote fine sand to fill to the gap when tunnel and first sealed wall and second sealed wall appear the crack, realizes sealed technological effect, and pressure sensor can real-time supervision to the condition in the sealed cavity simultaneously.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
FIG. 1 is a schematic structural view of a goaf sealing device for mines;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a working state diagram of sampling of the goaf sealing device for mines;
FIG. 4 is a partial enlarged view at B of FIG. 3;
FIG. 5 is an enlarged view of a portion of FIG. 4 at C;
FIG. 6 is a partial enlarged view at D of FIG. 4;
FIG. 7 is an enlarged view of a portion of FIG. 4 at H;
FIG. 8 is a perspective view of a goaf sealing device for mines according to the invention;
FIG. 9 is an enlarged partial view at E of FIG. 8;
fig. 10 is a partial enlarged view at F of fig. 8;
FIG. 11 is a perspective view of a first seal wall of a goaf seal arrangement for a mine in accordance with the present invention;
fig. 12 is a partial enlarged view at G of fig. 11;
FIG. 13 is a working state diagram of the sealing filling bag-shaped member bulge of the goaf sealing device for mines;
fig. 14 is a working state diagram of a sealing filling bag member of the goaf sealing device for mines, which is provided by the invention, without inflation.
In the drawings: 1. working face intake and return air lane 2, first sealing wall 3, second sealing wall 4, sealing chamber 5, fine sand 6, sealing filling assembly 7, goaf gas detection tube 8, gas extraction tube 9, gas sampling device 10, sealing inflation tube 11, sealing filling bag type member 12, sealing communicating member 13, sealing plug-in piece 14, control valve one 15, pressure sensor 16, pumping member 17, gas sampling assembly 18, sealing block one 19, sealing block two 20, sealing communicating member 22, sampling gas tube 23, communicating tube one, 24, communicating tube two, 25, connecting cavity 26, storage cavity two, 27, storage cavity one, 28, control valve six, 30, one-way control valve 31, control valve three, 32, magnetic member two, 33, control valve four, 34, magnetic member three, 35, pumping housing 36, pumping pulling member 37, piston two, 38, control valve five, 39, magnetic member four, 40, pumping housing 41, pumping housing 42, piston two, 45, air-out elastic member two, magnetic member 46, magnetic member two, elastic member detecting cavity one, 48, air-out cavity one, magnetic member two, magnetic member 45, magnetic member two, elastic member detecting cavity one, magnetic sensor two, magnetic member 45, air-out cavity one, magnetic member two, magnetic hollow space detecting device 52, magnetic hollow space, elastic member two, magnetic hollow space detecting device 52, magnetic space three, magnetic space detecting 4, magnetic space.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1, fig. 2, fig. 13 and fig. 14, the goaf sealing device for mines comprises a working face air inlet roadway 1, a first sealing wall 2 and a second sealing wall 3 are installed in the working face air inlet roadway 1, a sealing cavity 4 is arranged between the first sealing wall 2 and the second sealing wall 3, fine sand 5 is filled in the sealing cavity 4, the second sealing wall 3 is arranged close to a goaf 53, a sealing filling assembly 6 is arranged in the sealing cavity 4, the sealing filling assembly 6 is in through connection with the first sealing wall 2, a plurality of groups of sealing filling assemblies 6 are arranged in the sealing cavity 4, the sealing filling assembly 6 is arranged between the fine sand 5, goaf gas detection pipes 7 and gas extraction pipes 8 are communicated with the first sealing wall 2 and the second sealing wall 3, one ends of the goaf gas detection pipes 7 are arranged in the goaf 53, the other ends of the goaf gas detection pipes 7 are in through connection with the working face air inlet roadway 1, one ends of the gas extraction pipes 8 are arranged in the goaf 53, and the other ends of the gas extraction pipes 8 are in through connection with the working face air inlet roadway 1; the gas sampling device 9 is arranged in the goaf gas detection tube 7, the gas sampling device 9 seals the goaf gas detection tube 7, and simultaneously, the gas in the goaf 53 is extracted, so that the external air pollution is reduced, and the problems that the gas sample cannot be acquired, the gas sample is inaccurate, the air extraction time is long and the like in the prior art are overcome; the first sealing wall 2 is provided with a sealing inflation tube 10, the sealing inflation tube 10 is connected with the sealing chamber 4 and the working face air inlet roadway 1, the sealing filling assembly 6 comprises a sealing filling bag member 11, a sealing communicating member 12 and a sealing plug-in member 13, the sealing communicating member 12 is arranged in the sealing inflation tube 10, the outer side wall of the sealing communicating member 12 is in sealing connection with the inner side wall of the sealing inflation tube 10, the sealing communicating member 12 is in through connection with the sealing inflation tube 10, the sealing filling bag member 11 is arranged in the sealing chamber 4, the sealing filling bag member 11 is in through connection with one end of the sealing communicating member 12, deformation can occur under the action of external force of the sealing filling bag member 11, the other end of the sealing communicating member 12 is provided with threads, the sealing plug-in member 13 is movably arranged in the sealing inflation tube 10 and is in threaded connection with the other end of the sealing communicating member 12, the sealing plug-in member 13 is used for sealing treatment of the sealing inflation tube 10, the first control valve 14 is arranged in the sealing communicating member 12, the first control valve 14 is used for controlling the opening and closing of the sealing communicating member 12, and the pressure sensor 15 is arranged in the sealing filling bag member 11 and used for detecting the pressure intensity in the sealing filling bag member 11; firstly, sealing a second sealing wall 3 at a position close to a goaf 53, then constructing a first sealing wall 2 at a position with a certain distance from the second sealing wall 3, continuously filling fine sand 5 in the process of constructing the first sealing wall 2, simultaneously installing a sealing inflation tube 10 and a sealing filling assembly 6 from bottom to top until the first sealing wall 2 is completely constructed, filling the fine sand 5 into a sealing cavity 4, removing a sealing plug 13 from the sealing inflation tube 10, inserting an external vent tube 52 into the sealing inflation tube 10, opening a control valve I14, filling nitrogen into a sealing filling bag part 11, swelling the sealing filling bag part 11, filling the fine sand 5 into a gap in the sealing cavity 4, simultaneously extruding the sealing filling bag part 11 by the fine sand 5, recording the pressure of the pressure sensor 15, closing the control valve I14, taking out the sealing plug 13 into the sealing inflation tube 10 until the sealing cavity 12 is fully screwed, realizing sealing of the sealing inflation tube 10, and transmitting data of the sealing bag part 11 to the sealing cavity 4 due to the fact that the dynamic pressure of the sealing bag part 11 is stressed by the sealing bag part 11 is reduced, and the dynamic pressure of the sealing bag part is reduced, and the sealing bag is filled by the sealing bag part is completely stressed by the sealing cavity 4, the dynamic pressure is reduced, and the sealing pressure of the sealing bag is completely stressed by the sealing bag part 11 is completely stressed, and the sealing pressure is completely stressed by the sealing bag part 11 is completely, and the sealing cavity is completely filled by the sealing cavity is completely.
As shown in fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9 and fig. 10, the gas sampling device 9 comprises a pumping piece 16, a gas sampling assembly 17, a first sealing block 18, a second sealing block 19 and a sealing communication assembly 20, wherein the first sealing block 18 and the second sealing block 19 are arranged in the goaf gas detection tube 7, the first sealing block 18 and the second sealing block 19 are used for sealing the goaf gas detection tube 7, a sampling air tube 22 is communicated with the second sealing block 19, one end of the sampling air tube 22 is in communication with the goaf 53, the sealing communication assembly 20 is arranged in the first sealing block 18, the other end of the sampling air tube 22 is in communication with the sealing communication assembly 20, one end of the gas sampling assembly 17 is movably arranged in the sealing communication assembly 20, the other end of the gas sampling assembly 17 is arranged in the working face air inlet and return channel 1, one end of the pumping piece 16 is movably arranged in the sealing communication assembly 20, and the other end of the pumping piece 16 is arranged in the working face air inlet and return channel 1.
The sealed communication assembly 20 comprises a first communication pipeline 23, a second communication pipeline 24, a connecting cavity 25, a second storage cavity 26 and a first storage cavity 27, wherein the first storage cavity 27 and the second storage cavity 26 are arranged in the first sealing block 18, a control valve six 28 is connected between the first storage cavity 27 and the second storage cavity 26, water is filled in the first storage cavity 27 and the second storage cavity 26, the upper wall of the first storage cavity 27 is connected with the connecting cavity 25, the connecting cavity 25 is communicated with the first storage cavity 27, the other end of the sampling air pipe 22 is communicated with the first storage cavity 27, a one-way control valve 30 is arranged in the sampling air pipe 22, gas and water in the first storage cavity 27 cannot be discharged out of the first storage cavity 27 through the one-way control valve 30, gas in the sampling air pipe 22 enters the first storage cavity 27 through the one-way control valve 30, the first communicating pipeline 23 is arranged in the first sealing block 18, one end of the first communicating pipeline 23 is in through connection with the connecting cavity 25, the other end of the first communicating pipeline 23 penetrates through the first sealing block 18, the second communicating pipeline 24 is arranged in the first sealing block 18, one end of the second communicating pipeline 24 is in through connection with the second storage cavity 26, the other end of the second communicating pipeline 24 penetrates through the first sealing block 18, a control valve III 31 is arranged at the joint of the connecting cavity 25 and the first communicating pipeline 23, a magnetic part II 32 is arranged in the first communicating pipeline 23, a rubber ring is arranged on the magnetic part II 32 and used for sealing, a control valve IV 33 is arranged between the second communicating pipeline 24 and the second storage cavity 26, a magnetic part III 34 is arranged in the second communicating pipeline 24, and a rubber ring is arranged on the magnetic part III 34 and used for sealing.
The pumping part 16 comprises a pumping shell 35, a pumping pulling part 36 and a piston II 37, one end of the pumping shell 35 is movably arranged in the second communication pipeline 24, the other end of the pumping shell 35 is arranged in the working face air inlet and return roadway 1, the pumping pulling part 36 is movably arranged in the pumping shell 35, the piston II 37 is connected with the pumping pulling part 36, the piston II 37 is movably and hermetically connected with the pumping shell 35, the piston is similar to that in a syringe, a control valve V38 and a magnetic part IV 39 are arranged at one end of the pumping shell 35, the magnetic part IV is close to the magnetic part III 34, and the magnetic part IV 39 is different from the magnetic part III 34.
The gas sampling assembly 17 comprises a shell 40 for air extraction, an air extraction pulling piece 41 and a piston I42, wherein one end of the shell 40 for air extraction is movably arranged in a first communication pipeline 23, the other end of the shell 40 for air extraction is arranged in a working face air inlet and return roadway 1, the air extraction pulling piece 41 is movably arranged in the shell 40 for air extraction, the piston I42 is connected with the air extraction pulling piece 41, the piston I42 is movably and hermetically connected with the shell 40 for air extraction, the piston is similar to a piston in an injector, a second control valve 43 and a first magnetic piece 44 are arranged at one end of the shell 40 for air extraction, the first magnetic piece 44 is arranged close to the second magnetic piece 32, and the magnetism of the first magnetic piece 44 is different from that of the second magnetic piece 32; the inner side wall of the first storage cavity 27 is provided with a third elastic piece 45, helium is filled between the third elastic piece 45 and the inner side wall of the first storage cavity 27, a first water level detection sensor 46 is arranged in the first storage cavity 27, a second water level detection sensor 47 is arranged in the connecting cavity 25, the first water level detection sensor 46 is arranged at the upper end of the sixth control valve 28, and the second water level detection sensor 47 is arranged at the lower end of the third control valve 31;
initially, the second piston 37 is pushed against the fifth control valve 38, the first piston 42 is pushed against the second control valve 43, the third magnetic element 34 is connected with the fourth magnetic element 39 after the pumping element 16 is inserted into the second communication pipe 24, the first magnetic element 44 is connected with the second magnetic element 32 after the gas sampling assembly 17 is inserted into the first communication pipe 23, the rubber ring is used for sealing the pumping casing 35 and the fourth control valve 33 and sealing the pumping casing 40 and the third control valve 31, then the fourth control valve 33, the sixth control valve 28 and the fifth control valve 38 are opened, the pumping element 36 is pulled by external force, the pumping element 36 drives the second piston 37 to move outwards, water in the second storage cavity 26 is pumped into the pumping casing 35, water in the first storage cavity 27 flows into the second storage cavity 26, the pressure in the first storage cavity 27 and the second storage cavity 26 becomes smaller, the third elastic element 45 expands into the first storage cavity 27, then the one-way control valve 30 is opened, the gas in the goaf is rapidly pumped into the first storage cavity 27 through the sampling gas pipe 22, along with the decrease of the water level in the first storage cavity 27, the water level detection sensor 46 detects the water level in the first storage cavity 27, after the water level is lower than a set value, the one-way control valve 30 is closed, the third control valve 31 and the second control valve 43 are opened, the pumping pulling piece 41 is pulled by external force, the pumping pulling piece 41 drives the first piston 42 to move outwards, the gas in the first storage cavity 27 is pumped into the pumping shell 40, meanwhile, the pumping pulling piece 36 is pushed to push the second piston 37 to move inwards, the water in the second storage cavity 26 is pushed into the second storage cavity 26 from the pumping shell 35, the water in the second storage cavity 26 flows into the first storage cavity 27, the water level in the first storage cavity 27 rises, and the goaf gas in the first storage cavity 27 enters the pumping shell 40 through the connecting cavity 25, when the water level detection sensor II 47 detects the water level, the control valve II 43, the control valve III 31, the control valve IV 33, the control valve V38 and the control valve VI 28 are all closed, the pumping element 16 and the gas sampling assembly 17 are removed, and the sampled gas is sealed into the pumping casing 40.
As shown in fig. 11 and 12, the first sealing wall 2 and the second sealing wall 3 have the same structure, a sealing cavity 48 is arranged in the first sealing wall 2, the sealing cavity 48 is respectively arranged at the upper end and the lower end of the first sealing cavity 48, an elastic piece I50 is arranged in the sealing cavity 48, an elastic piece II 51 is arranged at the end part of the sealing cavity 48, the elasticity of the elastic piece II 51 is better than that of the elastic piece I, when the same external force is applied, the spring II is easier to deform, a vent pipe 52 is arranged on the first sealing wall 2, and the vent pipe 52 penetrates through the sealing cavity 48 and is arranged in the spring II; the external ventilation equipment is connected with the ventilation pipe 52 to convey helium into the elastic piece II 51, after the elastic piece II deforms and bulges under the filling of gas, the bottom wall and the upper wall of the roadway are filled and sealed, meanwhile, the elastic piece I50 continues to expand, but the expansion speed of the elastic piece I50 is smaller than that of the elastic piece II 51, after the filling of the elastic piece II 51 is finished, along with the continuous conveying of the helium, the elastic piece I50 continues to expand until the elastic piece I50 is attached to the sealing cavity 48, and when new cracks appear at the joint of the first sealing wall 2 and the second sealing wall 3 and the roadway, the elastic piece II 51 continues to deform under the filling of the gas in the elastic piece I50, and the cracks are further filled and sealed; the vent pipe 52 is provided with a one-way control valve 30, and the air in the first elastic member 50 and the second elastic member 51 cannot be discharged, but external air can enter.
The specific use is as follows: firstly, sealing a second sealing wall 3 at a position close to a goaf, then constructing a first sealing wall 2 at a position with a certain distance from the second sealing wall 3, continuously filling fine sand 5 in the process of constructing the first sealing wall 2, simultaneously installing a sealing inflation tube 10 and a sealing filling assembly 6 from bottom to top until the first sealing wall 2 is completely constructed, filling the fine sand 5 into a sealing cavity 4, removing a sealing plug 13 from the sealing inflation tube 10, inserting an external vent tube 52 into the sealing inflation tube 10, opening a control valve I14, filling nitrogen into a sealing filling bag part 11, swelling the sealing filling bag part 11, filling the fine sand 5 into a gap in the sealing cavity 4, simultaneously extruding the sealing filling bag part 11 by the fine sand 5, increasing the pressure in the sealing filling bag part 11, recording the pressure by a pressure sensor 15, closing the control valve I14, taking out the external vent tube 52, inserting the sealing plug 13 into the sealing inflation tube 10, connecting the sealing cavity 12 by threads, realizing sealing of the sealing tube 10, and transmitting data of the sealing bag part 11 to the sealing cavity 4 due to the fact that the dynamic pressure of the sealing bag part is stressed by the sealing inflation bag part 11 is reduced, and the sealing bag part is filled with the sealing bag part 11 is completely stressed, the sealing bag part is filled by the sealing bag part 11, and the sealing bag is filled by the sealing bag part, the sealing bag is filled by the sealing bag part is filled by the sealing bag in the sealing cavity, the sealing bag part is filled by the sealing bag with the sealing bag;
the external ventilation equipment is connected with the ventilation pipe 52 to convey helium into the elastic piece II 51, after the elastic piece II deforms and bulges under the filling of gas, the bottom wall and the upper wall of the roadway are filled and sealed, meanwhile, the elastic piece I50 continues to expand, but the expansion speed of the elastic piece I50 is smaller than that of the elastic piece II 51, after the filling of the elastic piece II 51 is finished, along with the continuous conveying of the helium, the elastic piece I50 continues to expand until the elastic piece I50 is attached to the sealing cavity 48, and when new cracks appear at the joint of the first sealing wall 2 and the second sealing wall 3 and the roadway, the elastic piece II 51 continues to deform under the filling of the gas in the elastic piece I50, and the cracks are further filled and sealed;
when the gas in the goaf needs to be sampled, initially, a piston II 37 is propped against a control valve V38, a piston I42 is propped against a control valve II 43, a pumping piece 16 is inserted into a communication pipeline II 24, a magnetic piece III 34 is connected with a magnetic piece IV 39, a gas sampling assembly 17 is inserted into a communication pipeline I23, a magnetic piece I44 is connected with a magnetic piece II 32, a rubber ring is used for sealing a space between a pumping shell 35 and the control valve IV 33 and a space between a pumping shell 40 and the control valve III 31, then the control valve IV 33, the control valve VI 28 and the control valve V38 are all opened, an external force is used for pulling a pumping pulling piece 36, the pumping pulling piece 36 drives the piston II 37 to move outwards, water in a storage cavity II 26 is pumped into the pumping shell 35, water in the storage cavity I27 flows into the storage cavity II 26, the pressure in the storage cavity I27 and the storage cavity II 26 is reduced, the elastic member III 45 expands into the first storage cavity 27, then the one-way control valve 30 is opened, gas in the goaf is rapidly pumped into the first storage cavity 27 through the sampling gas pipe 22, along with the decline of the water level in the first storage cavity 27, the water level detection sensor I46 detects the water level in the first storage cavity 27, when the water level is lower than a set value, the one-way control valve 30 is closed, the control valve III 31 and the control valve II 43 are opened, the pumping drawing member 41 is drawn by external force, the pumping drawing member 41 drives the piston I42 to move outwards, the gas in the first storage cavity 27 is pumped into the pumping shell 40, meanwhile, the pumping drawing member 36 is pushed, the pumping drawing member 36 pushes the piston II 37 to move inwards, the water in the second storage cavity 26 is pushed into the second storage cavity 26 from the pumping shell 35, the water in the second storage cavity 26 flows into the first storage cavity 27, the water level in the first storage cavity 27 rises, the goaf gas in the first storage cavity 27 enters the air pumping shell 40 through the connecting cavity 25, when the water level detection sensor II 47 detects the water level, the control valve II 43, the control valve III 31, the control valve IV 33, the control valve V38 and the control valve VI 28 are all closed, the water pumping piece 16 and the gas sampling assembly 17 are taken down, and the sampled gas is sealed into the air pumping shell 40.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (8)
1. The goaf sealing device for the mine is characterized by comprising a working face air inlet and return roadway, wherein a first sealing wall and a second sealing wall are arranged in the working face air inlet and return roadway, a sealing cavity is arranged between the first sealing wall and the second sealing wall, fine sand is filled in the sealing cavity, the second sealing wall is arranged close to the goaf, sealing filling components are arranged in the sealing cavity and are in through connection with the first sealing wall, a plurality of groups of sealing filling components are arranged in the sealing cavity, the sealing filling components are arranged among fine sand, one ends of the first sealing wall and the second sealing wall are communicated with goaf gas detection pipes and gas extraction pipes, one ends of the goaf gas detection pipes are arranged in the goaf, the other ends of the goaf gas detection pipes are in through connection with the working face air inlet and return, one ends of the gas extraction pipes are arranged in the goaf, and the other ends of the gas extraction pipes are in through connection with the working face air inlet and return roadway;
a gas sampling device is arranged in the goaf gas detection tube;
the sealing device is characterized in that a sealing inflation tube is arranged on the first sealing wall, the sealing inflation tube is connected with a sealing cavity and a working face air inlet and return roadway, the sealing filling assembly comprises a sealing filling bag member, a sealing communicating member and a sealing plug member, the sealing communicating member is arranged in the sealing inflation tube, the outer side wall of the sealing communicating member is connected with the inner side wall of the sealing inflation tube in a sealing mode, the sealing communicating member is connected with the sealing inflation tube in a penetrating mode, the sealing filling bag member is arranged in the sealing cavity, the sealing filling bag member is connected with one end of the sealing communicating member in a penetrating mode, threads are arranged at the other end of the sealing communicating member, the sealing plug member is movably arranged in the sealing inflation tube and is connected with the other end of the sealing communicating member in a threaded mode, sealing treatment is carried out on the sealing inflation tube, a control valve I is arranged in the sealing communicating member, and a pressure sensor is arranged in the sealing filling bag member.
2. The goaf sealing device for mines according to claim 1, wherein the gas sampling device comprises a water pumping piece, a gas sampling assembly, a first sealing block, a second sealing block and a sealing communication assembly, the first sealing block and the second sealing block are arranged in a goaf gas detection pipe, the first sealing block and the second sealing block are used for sealing the goaf gas detection pipe, a sampling gas pipe is communicated with the second sealing block, one end of the sampling gas pipe is communicated with the goaf, the sealing communication assembly is arranged in the first sealing block, the other end of the sampling gas pipe is communicated with the sealing communication assembly, one end of the gas sampling assembly is movably arranged in the sealing communication assembly, the other end of the gas sampling assembly is arranged in a working face air inlet and return roadway, one end of the water pumping piece is movably arranged in the sealing communication assembly, and the other end of the water pumping piece is arranged in the working face air inlet and return roadway.
3. The goaf sealing device for mines according to claim 2, wherein the sealing communicating component comprises a first communicating pipeline, a second storage cavity and a first storage cavity, the first storage cavity and the second storage cavity are arranged in the first sealing block, a control valve six is connected between the first storage cavity and the second storage cavity, the upper wall of the first storage cavity is connected with a connecting cavity, the connecting cavity is connected with the first storage cavity in a communicating way, the other end of the air pipe for sampling is connected with the first storage cavity in a communicating way, a one-way control valve is arranged in the air pipe for sampling, the first communicating pipeline is arranged in the first sealing block, one end of the first communicating pipeline is connected with the connecting cavity in a communicating way, the other end of the first communicating pipeline penetrates through the first sealing block, the other end of the second communicating pipeline penetrates through the first sealing block, a control valve three is arranged at the joint of the connecting cavity and the first storage cavity, a second magnetic piece is arranged in the connecting cavity, a second magnetic piece is arranged on the first communicating pipeline, a third magnetic piece is arranged in the connecting pipe, a fourth magnetic piece is arranged between the second magnetic piece and the third magnetic piece, and the fourth magnetic piece is arranged in the connecting pipe, and the magnetic piece is arranged in the magnetic piece.
4. The goaf sealing device for the mine is characterized in that the pumping piece comprises a pumping shell, a pumping pulling piece and a piston II, one end of the pumping shell is movably arranged in the communicating pipeline II, the other end of the pumping shell is arranged in a working face air inlet and return roadway, the pumping pulling piece is movably arranged in the pumping shell, the piston II is connected with the pumping pulling piece, a control valve V and a magnetic piece IV are arranged at one end of the pumping shell, the magnetic piece IV is arranged close to the magnetic piece III, and the magnetic piece IV is different from the magnetic piece III.
5. The goaf sealing device for the mine as claimed in claim 4, wherein the gas sampling assembly comprises a shell for air extraction, an air extraction pulling piece and a first piston, one end of the shell for air extraction is movably arranged in the first communication pipeline, the other end of the shell for air extraction is arranged in an air inlet and return roadway of the working face, the air extraction pulling piece is movably arranged in the shell for air extraction, the first piston is connected with the air extraction pulling piece, a second control valve and a first magnetic piece are arranged at one end of the shell for air extraction, the first magnetic piece is arranged close to the second magnetic piece, and the magnetism of the first magnetic piece is different from that of the second magnetic piece.
6. The goaf sealing device for the mine of claim 5, wherein the first inner side wall of the storage cavity is provided with a third elastic piece, helium is filled between the third elastic piece and the first inner side wall of the storage cavity, the first storage cavity is internally provided with a first water level detection sensor, the second connection cavity is internally provided with a second water level detection sensor, the first water level detection sensor is arranged at the six upper ends of the control valve, and the second water level detection sensor is arranged at the three lower ends of the control valve.
7. The goaf sealing device for the mine of claim 6, wherein the first sealing wall and the second sealing wall have the same structure, a sealing cavity is arranged in the first sealing wall, the sealing cavity is respectively arranged at the upper end and the lower end of the first sealing cavity, an elastic piece I is arranged in the sealing cavity, an elastic piece II is arranged at the end part of the sealing cavity, the elasticity of the elastic piece II is superior to that of the elastic piece I, a vent pipe is arranged on the first sealing wall, and the vent pipe penetrates through the sealing cavity and is arranged in the spring II.
8. The goaf sealing device for the mine as claimed in claim 7, wherein a one-way control valve is arranged in the vent pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310463962.XA CN116291716B (en) | 2023-04-26 | 2023-04-26 | Goaf sealing device is used in mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310463962.XA CN116291716B (en) | 2023-04-26 | 2023-04-26 | Goaf sealing device is used in mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116291716A true CN116291716A (en) | 2023-06-23 |
| CN116291716B CN116291716B (en) | 2024-07-16 |
Family
ID=86826021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310463962.XA Active CN116291716B (en) | 2023-04-26 | 2023-04-26 | Goaf sealing device is used in mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116291716B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116792658A (en) * | 2023-08-29 | 2023-09-22 | 山东省路桥集团有限公司 | Road bridge settlement distance detection device and method |
| CN118091053A (en) * | 2024-04-25 | 2024-05-28 | 徐州江煤科技有限公司 | Goaf monitoring system for coal mine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB787680A (en) * | 1955-06-13 | 1957-12-11 | Elliot Equipment Ltd | Improvements in or relating to seals for coalmine roadways, tunnels or the like |
| GB1167246A (en) * | 1967-06-06 | 1969-10-15 | Camus Mfg Chemical Company Ltd | Improvements in or relating to Underground Mine Roadways |
| RU2459961C1 (en) * | 2011-04-04 | 2012-08-27 | Общество с ограниченной ответственностью "МЕТРО-СТИЛЬ 2000" | Protective gate of underground structure |
| WO2015021783A1 (en) * | 2013-08-14 | 2015-02-19 | 中国神华能源股份有限公司 | Man-made retaining dam for coal mine underground reservoir, and method for connecting coal pillar dam body, surrounding rock, and same |
| CN104481588A (en) * | 2014-11-19 | 2015-04-01 | 辽宁工程技术大学 | Coal mine gob area sealing method |
| CN106837420A (en) * | 2017-04-01 | 2017-06-13 | 河南理工大学 | Apparatus and method based on the closed coal mine gob of roadway surrounding rock fissured structure |
| CN106837419A (en) * | 2017-04-07 | 2017-06-13 | 兖州煤业股份有限公司 | Face sky old working compound closure wall and its method of construction |
| CN109488386A (en) * | 2019-01-10 | 2019-03-19 | 安徽理工大学 | A kind of judgement coal mine gob group's fire dam air leakage source, the device and method that converges |
| CN111005763A (en) * | 2019-12-23 | 2020-04-14 | 山西潞安环保能源开发股份有限公司常村煤矿 | Coal mine underground sealing wall and preparation method thereof |
| CN113356927A (en) * | 2021-07-20 | 2021-09-07 | 国能神东煤炭集团有限责任公司 | Underground fireproof and explosion-proof airtight isolation system and construction method thereof |
-
2023
- 2023-04-26 CN CN202310463962.XA patent/CN116291716B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB787680A (en) * | 1955-06-13 | 1957-12-11 | Elliot Equipment Ltd | Improvements in or relating to seals for coalmine roadways, tunnels or the like |
| GB1167246A (en) * | 1967-06-06 | 1969-10-15 | Camus Mfg Chemical Company Ltd | Improvements in or relating to Underground Mine Roadways |
| RU2459961C1 (en) * | 2011-04-04 | 2012-08-27 | Общество с ограниченной ответственностью "МЕТРО-СТИЛЬ 2000" | Protective gate of underground structure |
| WO2015021783A1 (en) * | 2013-08-14 | 2015-02-19 | 中国神华能源股份有限公司 | Man-made retaining dam for coal mine underground reservoir, and method for connecting coal pillar dam body, surrounding rock, and same |
| CN104481588A (en) * | 2014-11-19 | 2015-04-01 | 辽宁工程技术大学 | Coal mine gob area sealing method |
| CN106837420A (en) * | 2017-04-01 | 2017-06-13 | 河南理工大学 | Apparatus and method based on the closed coal mine gob of roadway surrounding rock fissured structure |
| CN106837419A (en) * | 2017-04-07 | 2017-06-13 | 兖州煤业股份有限公司 | Face sky old working compound closure wall and its method of construction |
| CN109488386A (en) * | 2019-01-10 | 2019-03-19 | 安徽理工大学 | A kind of judgement coal mine gob group's fire dam air leakage source, the device and method that converges |
| CN111005763A (en) * | 2019-12-23 | 2020-04-14 | 山西潞安环保能源开发股份有限公司常村煤矿 | Coal mine underground sealing wall and preparation method thereof |
| CN113356927A (en) * | 2021-07-20 | 2021-09-07 | 国能神东煤炭集团有限责任公司 | Underground fireproof and explosion-proof airtight isolation system and construction method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116792658A (en) * | 2023-08-29 | 2023-09-22 | 山东省路桥集团有限公司 | Road bridge settlement distance detection device and method |
| CN116792658B (en) * | 2023-08-29 | 2023-11-21 | 山东省路桥集团有限公司 | Road bridge settlement distance detection device and method |
| CN118091053A (en) * | 2024-04-25 | 2024-05-28 | 徐州江煤科技有限公司 | Goaf monitoring system for coal mine |
| CN118091053B (en) * | 2024-04-25 | 2024-07-02 | 徐州江煤科技有限公司 | Goaf monitoring system for coal mine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116291716B (en) | 2024-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116291716B (en) | Goaf sealing device is used in mine | |
| CN106703871B (en) | A kind of method of high pressure water injection prevention and treatment gas and coal dust | |
| CN112228071B (en) | Method for detecting gas storage performance of brine mining dissolution cavity of high-impurity salt mine | |
| CN107448169A (en) | A kind of three-body type Hydraulic Fracturing Stress Measurements Push-and-pull valve | |
| CN111520131B (en) | Device and method for measuring coal seam gas pressure in situ at ultra-long distance | |
| CN207177823U (en) | A kind of three-body type Hydraulic Fracturing Stress Measurements Push-and-pull valve | |
| CN110243746A (en) | A kind of device and method of layer-through drilling quick in situ test coal seam permeability | |
| CN103603651A (en) | Device and method for testing stability of coal seam gas extraction drilled hole | |
| CN109736779A (en) | A kind of pressure break radius measurement method of this coal seam hydraulic fracture | |
| CN102200002A (en) | method and device for sealing upward hole at high pressure by sections | |
| CN103121566A (en) | Cavern nitrogen displacement method used for underground water-sealed rock cavern oil storages | |
| CN103195470B (en) | Drilling construction Gas gathering-device | |
| CN111764885A (en) | Visual gas well intermittent production simulation experiment device and method | |
| CN110847889A (en) | Hydraulic fracturing test system and test method | |
| CN115075769A (en) | Gas extraction drilling and hole sealing device and method | |
| CN109322644A (en) | A kind of coal bed gas well pressure control water pumping gas production method and system | |
| CN111691874B (en) | Cement paste water channeling prevention effect evaluation device and evaluation method | |
| CN201535167U (en) | Drilling type aperture control device | |
| CN105525941A (en) | Method for improving stability of permanent gas extraction system of outburst mine | |
| CN203161287U (en) | Out-flow gas collecting device for drilling construction | |
| CN110593763B (en) | Closed-air circulation through type mud protection wall cluster type down-the-hole hammer for hole expansion and method | |
| CN209227570U (en) | Stratum dewatering construction device | |
| RU2300668C2 (en) | Pumping block for well operation (variants) | |
| CN106869891B (en) | A kind of coal bed methane exploring method and device of ice-cleat pressure regulation | |
| CN208220717U (en) | Hydraulic fracture high pressure sealing of hole system |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240625 Address after: Room 417, 4th Floor, Government Office Building, Xiaoling Town, Acheng District, Harbin City, Heilongjiang Province, 150000 RMB Applicant after: Harbin Jinda Copper Zinc Mining Co.,Ltd. Country or region after: China Address before: B702/707/709, university entrepreneurship Park, high tech Zone, No. 99, University Road, high tech Industrial Development Zone, Xuzhou, Jiangsu Province, 221000 Applicant before: China Mining Geological Technology Research Institute (Jiangsu) Co.,Ltd. Country or region before: China |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |