CN214997815U

CN214997815U - Mining plugging device

Info

Publication number: CN214997815U
Application number: CN202121209107.9U
Authority: CN
Inventors: 孙浚淇; 张远琛
Original assignee: Xi'an Hengguan Electromechanical Equipment Co ltd
Current assignee: Xi'an Hengguan Electromechanical Equipment Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-12-03
Anticipated expiration: 2031-06-01

Abstract

The utility model discloses a mining plugging device, relate to mining machinery technical field, including shutoff air wall, controlling means, inflation assembly and jet-propelled subassembly are all installed on the shutoff air wall, and respectively with the inside intercommunication of shutoff air wall, and inflation assembly can control whether oxygen is filled in to the shutoff air wall, whether oxygen in the jet-propelled subassembly can control the shutoff air wall discharges, controlling means's one end is used for communicateing outside oxygen supply unit, controlling means's the other end and the inside intercommunication of inflation assembly, controlling means is used for filling oxygen in the shutoff air wall, and make the inflation of shutoff air wall expand, the shutoff air wall after the inflation is used for the shutoff tunnel, jet-propelled subassembly is used for spouting into the supreme corner with the oxygen in the shutoff air wall. The mining plugging device is good in plugging effect and can supply oxygen to the upper corner of a shallow coal seam.

Description

Mining plugging device

Technical Field

The utility model relates to a mining machinery technical field specifically is to relate to a mining plugging device.

Background

The existing mining plugging device can only realize plugging and has no function of supplying air outwards. In the coal mine production, gas is used as dangerous gas gushed from a coal rock wall of a mine, so that the safety production of the coal mine is greatly threatened, and due to the special spatial position and structure, the gas accumulation is easy to occur because the upper corner of a coal mining face of the mine is close to the coal wall and the mining area side, the air flow speed is very low, and the local part is in a vortex state.

The existing mining plugging device mainly comprises the following parts:

the coal bag wall plugging is formed by using woven bagged fly ash and building each bag of fly ash, the upper corner of a coal mine is plugged, the efficiency is low, the labor intensity is high, the sealing effect is poor, the influence on the quick sealing timeliness is large, and the function of supplying air to the outside is not realized;

the method comprises the following steps of (1) wood buttress plugging, namely, sleepers are used for building wall bodies, so that the upper corners of a coal mine are plugged, the resource waste is overlarge, gaps exist among woods, the sealing effect is poor, and the function of supplying air outwards is omitted;

the high polymer material plugging realizes the plugging of the upper corners of the coal mine by using a high polymer organic material spraying mode, and the organic material can release a large amount of heat in reaction, so that the fire can be caused in the plugging process to cause accidents, and the function of supplying air to the outside is not provided.

Therefore, it is urgently needed to provide a mining plugging device to solve the problem that the traditional plugging mode cannot supply air to the outside and supply the oxygen concentration at the upper corner of a shallow coal seam.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mining plugging device to solve the problem that above-mentioned prior art exists, the shutoff is effectual, and can carry out the oxygen supply to the shallow coal seam upper corner that buries.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a mining plugging device, including shutoff air wall, controlling means, inflatable module and jet-propelled subassembly, inflatable module with the jet-propelled subassembly is all installed on the shutoff air wall, and respectively with the inside intercommunication of shutoff air wall, just inflatable module can control to whether oxygen charging in the shutoff air wall is, jet-propelled subassembly can control whether oxygen in the shutoff air wall is discharged, controlling means's one end is used for communicateing outside apparatus for oxygen supply, controlling means's the other end with the inside intercommunication of inflatable module, controlling means be used for to oxygenate in the shutoff air wall, and make the inflation of shutoff air wall, after the inflation shutoff air wall is used for the shutoff tunnel, jet-propelled subassembly be used for with oxygen in the shutoff air wall spouts into supreme corner.

Preferably, the blocking air wall comprises a plurality of air chamber units, adjacent air chamber units are fixedly connected but not communicated, one blocking air wall corresponds to one inflation assembly, and each inflation assembly is communicated with the control device and is respectively used for inflating oxygen into each air chamber unit.

Preferably, the number of the air cell units is four.

Preferably, the number of the air injection assemblies is one, the air injection assemblies are fixed on one air chamber unit located at the edge, and each air injection assembly can be communicated with the air chamber unit.

Preferably, the gas injection assembly comprises a plurality of gas injection units, each gas injection unit comprises a one-way valve, a gas outlet on-off valve and a spray head, one end of each one-way valve is communicated with the gas chamber unit, the other end of each one-way valve is communicated with the gas outlet on-off valve, one end of each gas outlet on-off valve, which is far away from the one-way valve, is communicated with the spray head, each one-way valve is used for controlling gas to only pass from the gas chamber unit to the spray head, each gas outlet on-off valve is used for controlling whether the gas injection unit injects gas or not, and the spray head is used for injecting oxygen in the gas chamber unit to an upper corner.

Preferably, the spray head is a universal spray head.

Preferably, each of the air injection units is arranged in sequence and uniformly along a direction perpendicular to the arrangement direction of the air chamber units.

Preferably, the inflation assembly comprises an inflation on-off valve, a deflation on-off valve, a refill, a pressure relief safety valve and a pair of wires, one end of the inflation on-off valve is communicated with the control device, the other end of the inflation on-off valve is connected and communicated with the bushing, the other end of the supplement core is connected and communicated with a four-way joint, the air release on-off valve, the counter wire and the pressure relief safety valve are respectively connected and communicated with different ports of the four-way joint, the pressure relief safety valve and the air release on-off valve can be communicated with the outside, one end of the pair of wires far away from the bushing is communicated with the air chamber unit, the inflation on-off valve is used for controlling whether the air chamber unit is inflated or not, the deflation on-off valve is used for controlling whether oxygen in the air chamber unit is discharged or not, and the pressure relief safety valve is used for automatically opening for pressure relief when the pressure in the air chamber unit is overlarge.

Preferably, the control device comprises a quick-connection female head and a plurality of air inlet pipelines, one end of the quick-connection female head is used for being communicated with an external oxygen supply device, the other end of the quick-connection female head is respectively communicated with the air inlet pipelines through pipelines, one air inlet pipeline is correspondingly connected with one inflation assembly, and the air inlet pipeline is provided with a control on-off valve which is used for controlling the on-off of the gas in the air inlet pipeline, the air inlet pipeline is also provided with a branch, the control on-off valve is positioned between the branch and the quick-connection female head, the branch is communicated with the air inlet pipeline, and the tail end of the branch is provided with a pressure gauge for detecting the pressure in the air inlet pipeline, the branch is also provided with a pressure on-off valve, and the pressure on-off valve is positioned in the middle of the branch and is used for controlling the on-off of the gas of the branch.

Preferably, the periphery of the blocking air wall is wrapped by protective cloth.

The utility model discloses for prior art gain following technological effect:

the utility model provides a mining plugging device, inflatable component and jet-propelled subassembly are all installed on the shutoff gas wall, and respectively with the inside intercommunication of shutoff gas wall, controlling means is used for filling oxygen in the shutoff gas wall, and make the shutoff gas wall inflation, shutoff gas wall after the inflation is used for the shutoff tunnel, and shutoff gas wall after the inflation can warp to the lateral wall and the top surface of contact lane group, and rather than the laminating, play the shutoff effect, and the shutoff is effectual, jet-propelled subassembly is used for spouting into supreme corner with the oxygen in the shutoff gas wall, thereby spout into supreme corner with the oxygen in the shutoff gas wall, guarantee that the oxygen of upper corner is sufficient, can form the air curtain simultaneously, stop the goaf gaseous outwards spilling over.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments 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 structural diagram of a mining plugging device provided by the present invention;

fig. 2 is a left side view of a control device in the mining plugging device provided by the present invention;

fig. 3 is a front view of a plugging air wall in the plugging device for mine provided by the utility model;

FIG. 4 is a right side view of the plugged air wall of FIG. 3;

in the figure: 100-mine plugging device, 1-plugging air wall, 11-air chamber unit, 2-control device, 21-quick connection female head, 22-control on-off valve, 23-pressure gauge, 24-pressure on-off valve, 25-air inlet pipeline, 26-branch, 3-inflation assembly, 31-pair wire, 32-deflation on-off valve, 33-pressure relief valve, 34-compensation core, 35-inflation on-off valve, 4-air injection unit, 41-one-way valve, 42-deflation on-off valve and 43-spray head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model aims at providing a mining plugging device to it is poor to solve current mining plugging device shutoff effect, and the technical problem of unable external air feed.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1-4, the utility model provides a mining plugging device 100, including plugging air wall 1, a control device 2, an inflation component 3 and an air injection component, the inflation component 3 and the air injection component are both installed on the plugging air wall 1 and are respectively communicated with the inside of the plugging air wall 1, and the inflation component 3 can control whether to inflate or not to the inside of the plugging air wall 1, the air injection component can control whether to exhaust the oxygen in the plugging air wall 1, one end of the control device 2 is used for communicating with an external oxygen supply device, the other end of the control device 2 is communicated with the inside of the inflation component 3, the control device 2 is used for oxygenating the inside of the plugging air wall 1 and expanding the plugging air wall 1, the expanded plugging air wall 1 is used for plugging a roadway, and the expanded plugging air wall 1 can be deformed to contact with the side wall and the top surface of the roadway wall and is attached to play a plugging role, and the plugging effect is good, the gas injection assembly is used for injecting oxygen in the plugging gas wall 1 to the upper corner, so that the oxygen in the plugging gas wall 1 is injected to the upper corner, the oxygen in the upper corner is sufficient, a gas curtain can be formed, and gas in the goaf is prevented from overflowing outwards.

Specifically, the plugging air wall 1 comprises a plurality of air chamber units 11, the adjacent air chamber units 11 are fixedly connected but not communicated, one plugging air wall 1 corresponds to one inflation assembly 3, each inflation assembly 3 is communicated with the control device 2 and is respectively used for oxygenating the air chamber units 11, so that the air chamber units 11 are independently filled, oxygen required for filling can be saved, and the plugging air wall 1 is more excellent in that the whole size is 2000mm long, 800mm wide and 4000mm high, and the adjacent air chamber units 11 are sewn and fixed.

The air chamber unit 11 is four, but the utility model provides an air chamber unit 11's quantity is not limited to four, and the technical personnel in the art can carry out the adaptability change to it according to actual tunnel size.

The number of the gas injection assemblies is one, the gas injection assemblies are fixed on one gas chamber unit 11 located at the edge, and each gas injection assembly can be communicated with the gas chamber unit 11, so that when oxygen is required to be introduced into an upper corner, the pressure in the gas chamber unit 11 where the gas injection assembly is located is properly increased, more preferably, about 10% of gas is required to be continuously filled into the gas chamber unit 11, the gas chamber unit 11 is not loosened due to gas leakage in the oxygen supply process, the inosculation contact can be ensured, the air pressure of other gas chamber units 11 can be ensured as long as the plugging effect can be ensured, the required oxygen introduction amount can be reduced, and meanwhile, the plugging effect on a roadway is also avoided being influenced due to the fact that the pressure in the plugging gas wall 1 is reduced in the gas injection process.

The gas injection assembly comprises a plurality of gas injection units 4, each gas injection unit 4 comprises a one-way valve 41, a gas outlet on-off valve 42 and a spray head 43, one end of each one-way valve 41 is communicated with the gas chamber unit 11, the other end of each one-way valve is communicated with the gas outlet on-off valve 42, one end, far away from the one-way valve 41, of the gas outlet on-off valve 42 is communicated with the spray head 43, the one-way valve 41 is used for controlling gas to only pass through the spray head 43 from the gas chamber unit 11, so that external gas is prevented from entering the blocking gas wall 1 and affecting cleanliness of gas inside the blocking gas wall, the gas outlet on-off valve 42 is used for controlling whether gas is injected into the gas injection unit 4 or not, so that whether oxygen is injected into an upper corner or not is selected according to actual needs, and the spray head 43 is used for spraying oxygen into the gas chamber unit 11 to the upper corner, so that oxygen is sprayed more uniformly.

The nozzle 43 is a universal nozzle, and can inject oxygen in all directions, so as to ensure sufficient oxygen concentration at the upper corner and form an air curtain.

The air injection units 4 are sequentially and uniformly arranged along the direction vertical to the arrangement direction of the air chamber units 11, so that an oxygen air curtain is formed conveniently, and gas in the goaf is prevented from overflowing outwards.

The inflation component 3 comprises an inflation on-off valve 35, a deflation on-off valve 32, a supplement core 34, a pressure relief safety valve 33 and a pair of threads 31, one end of the inflation on-off valve 35 is communicated with the control device 2 so that oxygen can reach the inflation on-off valve 35, the other end of the inflation on-off valve 35 is connected and communicated with the supplement core 34, the supplement core 34 can be used for connecting threaded pipes with different diameters, the inflation on-off valve 35 is used for controlling whether the air chamber unit 11 is inflated or not and is directly controlled manually, so that when oxygen needs to be supplemented into the blocking air wall 1, the inflation on-off valve 35 is opened, the inflation on-off valve 35 is closed after the oxygen is filled, the other end of the supplement core 34 is connected and communicated with a four-way joint, the deflation on-off valve 32, the pair of threads 31 and the pressure relief safety valve 33 are respectively connected and communicated with different ports of the four-way joint and are communicated through pipelines, and both the safety valve 33 and the deflation on-off valve 32 can be communicated with the outside, one end of the opposite wire 31 far away from the compensating core 34 is communicated with the air chamber unit 11 to realize the connection and the communication among all elements, the air release on-off valve 32 is used for controlling whether the oxygen in the air chamber unit 11 is discharged or not, when the mining plugging device 100 needs to be pushed forwards, because the plugging air wall 1 is in contact with the roadway, therefore, the air release on-off valve 32 needs to be opened to release a part of the oxygen in the blocking air wall 1 to reduce the volume thereof, so as to facilitate movement, the air release on-off valve 32 is closed during inflation, the pressure release safety valve 33 is used for automatically opening to release pressure when the pressure in the air chamber unit 11 is too high, thereby avoiding the explosion caused by the overlarge pressure of the air chamber unit 11 and influencing the use safety, the pressure relief safety valve 33 is arranged close to the air chamber unit 11, realizing the quick response, when the air bag is seriously extruded, the pressure relief safety valve 33 can be opened in time after overpressure, and damage caused by overpressure is avoided.

The control device 2 comprises a quick-connection female head 21 and a plurality of air inlet pipelines 25, the control device 2 is made of stainless steel 304, the wire drawing surface and the air inlet and outlet ports are quick joints, so that the assembly, disassembly and movement are convenient, preferably, the pipelines in the control device 2 are hoses or stainless steel pipes, one end of the quick-connection female head 21 is used for communicating an external oxygen supply device to guide oxygen in the external oxygen supply device into the blocking air wall 1, the other end of the quick-connection female head is respectively communicated with the air inlet pipelines 25 through pipelines, the quick-connection female head 21 is used for connecting, the operation is simple and convenient, the use is reliable, one air inlet pipeline 25 is correspondingly connected with one inflation assembly 3 to realize independent inflation and deflation of the air chamber unit 11, the air inlet pipeline 25 is provided with a control on-off valve 22, the control on-off valve 22 is used for controlling the on-off of air in the air inlet pipeline 25, the air inlet pipeline 25 is also provided with a branch 26, the control on-off valve 22 is positioned between the branch 26 and the quick-connection female head 21, the branch 26 is communicated with the air inlet pipeline 25, a pressure gauge 23 is arranged at the tail end of the branch 26, the pressure gauge 23 is used for detecting the pressure in the air inlet pipeline 25, one air chamber unit 11 corresponds to one pressure gauge 23, the pressure in the air chamber unit 11 is monitored in real time, explosion caused by overhigh pressure in the air chamber unit 11 is avoided, a pressure on-off valve 24 is further arranged on the branch 26, the pressure on-off valve 24 is positioned in the middle of the branch 26, the pressure on-off valve 24 is used for controlling the on-off of the gas in the branch 26, when the air chamber unit 11 is inflated, the pressure on-off valve 24 is closed, the pressure gauge 23 does not measure the pressure, the pressure is prevented from being overhigh during inflation, the pressure gauge 23 is damaged, meanwhile, the air chamber unit 11 is manually pressed during inflation, the pressure test is carried out after the pressure test is qualified, the pressure on-off valve 24 is opened, the pressure is measured by using the pressure gauge 23, when the pressure is insufficient, the pressure on-off valve 24 is closed, and the inflation is continued, during the superpressure, the pressure release is opened automatically to pressure release relief valve 33, ensures the safety in utilization, and is more excellent, adopts withstand voltage rubber tube to be connected between controlling means 2 and the air chamber unit 11, all adopts quick-operation joint, and convenient operation is simple, and anti drawing, explosion-proof have ensured high security, have guaranteed sufficient durability simultaneously, and each on-off valve all adopts manual control, easy operation, fault rate are low, the practicality is strong.

The periphery of the plugging air wall 1 is wrapped by protective cloth, so that the flame-retardant and anti-static effects are achieved, and sharp objects are prevented from scratching and puncturing the air chamber unit 11.

When in specific use, the method comprises the following steps:

s1: installing equipment, namely placing the plugging air wall 1 in place, scattering the plugging air wall as far as possible, and checking whether each valve group is installed correctly and whether the valve state is correct (completely closed); the control device 2 is put in place and the valve status is checked for correctness (full closure); the control device 2 and the inflation assembly 3 are correctly connected, and all quick connectors are installed in place; an external oxygen supply device is correctly connected with a quick-connection female head 21 of a control device 2, and a quick connector is installed in place;

s2: inflating, manually opening the control on-off valve 22 and the corresponding inflation on-off valve 35 of the control device 2, inflating the airbag, manually pressing the air chamber unit 11 to test the pressure to reach the standard, closing the control on-off valve 22 and the inflation on-off valve 35, opening the pressure on-off valve 24, observing the pressure in the corresponding air chamber unit 11 through the pressure gauge 23, closing the pressure on-off valve 24 when the pressure is not reached, opening the control on-off valve 22 and the inflation on-off valve 35 to continue inflating the air chamber unit 11, and automatically opening the pressure relief safety valve 33 to relieve the pressure when the pressure is overpressure, so as to ensure the use safety;

s3: oxygen spraying, namely keeping the inflation on-off valve 35 on the air chamber unit 11 where the air spraying assembly is located to be opened, opening the corresponding control on-off valve 22, closing the inflation on-off valves 35 and the control on-off valves 22 corresponding to other air chamber units 11, and continuously spraying air to the low-oxygen-content area at the upper corner by using the one-way valve 41, the air outlet on-off valve 42 and the spray head 43 to realize sealing and oxygen supply to the upper corner of the coal mine;

s4: after the air chamber unit 11 is moved, all valves are closed, all connecting pipelines are disassembled, the air discharging on-off valve 32 and the air charging on-off valve 35 are opened, air is discharged from the air chamber unit 11, when the working surface needs to be pushed forward, the plugging air wall 1 is moved forward, then the steps of air charging and oxygen spraying are repeated, and after the air chamber unit is used, all elements are folded after the air discharging is finished, so that the work is finished.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present description should not be construed as a limitation of the present invention.

Claims

1. The utility model provides a mining plugging device which characterized in that: the inflatable component and the air injection component are mounted on the plugging air wall and are respectively communicated with the inside of the plugging air wall, the inflatable component can control whether the plugging air wall is inflated or not, the air injection component can control whether the oxygen in the plugging air wall is discharged or not, one end of the control device is used for being communicated with an external oxygen supply device, the other end of the control device is communicated with the inside of the inflatable component, the control device is used for oxygenating the plugging air wall and expanding the plugging air wall, the expanded plugging air wall is used for plugging a roadway, and the air injection component is used for injecting the oxygen in the plugging air wall to an upper corner.

2. The mining plugging device of claim 1, wherein: the blocking air wall comprises a plurality of air chamber units, adjacent air chamber units are fixedly connected but not communicated, one blocking air wall corresponds to one inflation assembly, and each inflation assembly is communicated with the control device and is respectively used for oxygenating in each air chamber unit.

3. The mining plugging device of claim 2, wherein: the number of the air chamber units is four.

4. The mining plugging device of claim 2, wherein: the number of the air injection assemblies is one, the air injection assemblies are fixed on one air chamber unit located on the edge, and each air injection assembly can be communicated with the air chamber unit.

5. The mining plugging device of claim 4, wherein: the gas injection assembly comprises a plurality of gas injection units, each gas injection unit comprises a one-way valve, a gas outlet on-off valve and a spray head, one end of each one-way valve is communicated with the gas chamber unit, the other end of each one-way valve is communicated with the gas outlet on-off valve, one end, far away from the one-way valve, of the gas outlet on-off valve is communicated with the spray head, each one-way valve is used for controlling gas to only pass from the gas chamber unit to the spray head, the gas outlet on-off valve is used for controlling whether the gas injection unit injects gas or not, and the spray head is used for injecting oxygen in the gas chamber unit to an upper corner.

6. The mining plugging device of claim 5, wherein: the spray head is a universal spray head.

7. The mining plugging device of claim 5, wherein: and all the air injection units are sequentially and uniformly arranged along the direction vertical to the arrangement direction of the air chamber units.

8. The mining plugging device of claim 2, wherein: the inflation assembly comprises an inflation on-off valve, a deflation on-off valve, a core, a pressure relief safety valve and a pair wire, one end of the inflation on-off valve is communicated with the control device, the other end of the inflation on-off valve is connected and communicated with the bushing, the other end of the supplement core is connected and communicated with a four-way joint, the air release on-off valve, the counter wire and the pressure relief safety valve are respectively connected and communicated with different ports of the four-way joint, the pressure relief safety valve and the air release on-off valve can be communicated with the outside, one end of the pair of wires far away from the bushing is communicated with the air chamber unit, the inflation on-off valve is used for controlling whether the air chamber unit is inflated or not, the deflation on-off valve is used for controlling whether oxygen in the air chamber unit is discharged or not, and the pressure relief safety valve is used for automatically opening for pressure relief when the pressure in the air chamber unit is overlarge.

9. The mining plugging device of claim 2, wherein: the control device comprises a quick-connection female head and a plurality of air inlet pipelines, one end of the quick-connection female head is used for being communicated with an external oxygen supply device, the other end of the quick-connection female head is respectively communicated with the air inlet pipelines through pipelines, one air inlet pipeline is correspondingly connected with one air inflation assembly, and the air inlet pipeline is provided with a control on-off valve which is used for controlling the on-off of the gas in the air inlet pipeline, the air inlet pipeline is also provided with a branch, the control on-off valve is positioned between the branch and the quick-connection female head, the branch is communicated with the air inlet pipeline, and the tail end of the branch is provided with a pressure gauge for detecting the pressure in the air inlet pipeline, the branch is also provided with a pressure on-off valve, and the pressure on-off valve is positioned in the middle of the branch and is used for controlling the on-off of the gas of the branch.

10. The mining plugging device of claim 1, wherein: the periphery of the plugging air wall is wrapped by protective cloth.