CN110700831A - Coal mine production system under intelligent mining condition - Google Patents
Coal mine production system under intelligent mining condition Download PDFInfo
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- CN110700831A CN110700831A CN201911145781.2A CN201911145781A CN110700831A CN 110700831 A CN110700831 A CN 110700831A CN 201911145781 A CN201911145781 A CN 201911145781A CN 110700831 A CN110700831 A CN 110700831A
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- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
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- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
Abstract
The invention discloses a coal mine production system under an intelligent mining condition, which comprises a main well (1), an auxiliary well (2), a rail main roadway (6) and a transportation main roadway (7), wherein the rail main roadway (6) and the transportation main roadway (7) are arranged in parallel, a shaft bottom yard (3) is built at the bottom ends of the main well (1) and the auxiliary well (2), the shaft bottom yard (3) separates air flows in the main well (1) and the auxiliary well (2) through an air door (24), the rail main roadway (6) is connected with the shaft bottom yard (3) through a main rail stone door (4), the transportation main roadway (7) is connected with the shaft bottom yard (3) through a main transportation stone door (5), and a coal face (15) is arranged in an L shape. The invention changes the original mode of relying on return air of the return airway, and leads the production system of the mine to be more reasonable under the intelligent mining condition.
Description
Technical Field
The invention relates to the field of mine exploitation, in particular to a coal mine production system under an intelligent exploitation condition.
Background
In 1954, English people created a longwall face comprehensive mechanical coal mining process, and lifted the first technical revolution of world coal production, in the 80 th 20 th century, coal mining technology was combined with high-tech, and high-power, high-strength and high-reliability mechatronic fully-mechanized mining equipment and monitoring technology were developed and used, which is called the second technical revolution of coal industry, in the 21 st century, foreign coal mine intelligent mining pursues the principle of 'safety, high efficiency, simplicity, practicality, reliability and economy', coal enterprises in America, Germany and Australia achieved certain success in the intelligent research of fully-mechanized face, and through the adoption of internet technology, coal mining machine memory cutting technology, electro-hydraulic control technology, variable frequency soft start technology and the like, the automatic coal cutting of 3 ~ 5 people on the face was realized in medium-thickness coal seams with ideal geological conditions, and the realization of unmanned intelligent mining of the face was explored.
China also puts forward the development direction of realizing intelligent and unmanned mining of coal mine production before and after 2009, but the intelligent mining technology has a certain gap compared with the developed countries abroad.
After more than 10 years of efforts, dozens of unmanned intelligent coal mining working faces are built in China at present, but the production system still adopts a wall-type system coal mining method, namely, at least one stoping roadway is arranged at each of two ends of the working face, and the production system is not changed at all. At present, the main ventilation modes of the coal mining working face of the coal mine are U-shaped ventilation, Y-shaped ventilation, W-shaped ventilation, Z-shaped ventilation and H-shaped ventilation. At least one air return main roadway is arranged in one mine for air return, and the coal face is provided with an air return roadway and a return air shaft independently, which are main participants of a ventilation system of the mine.
In the existing mine production mode, air supply to the coal face is necessary. The ventilation is mainly to solve the breathing of staff and to discharge partial harmful gas and dust, makes the working face environment become more favourable. However, the introduction of oxygen brings disasters such as coal dust raising, gas explosion, spontaneous combustion ignition of coal, coal dust explosion and the like to the working face. The arrangement of the traditional ventilation mode and the air return main roadway also causes great occupation of manpower and material resources.
However, with the occurrence of unmanned mining intelligent coal mining working faces, the advance of the working faces can be changed into unmanned operation, which means that air supply for the working faces is not needed, the possibility of a series of disasters caused by oxygen is greatly reduced, and the waste of resources and related working procedures caused by mining air tunnels can be saved. The process of intelligent mining of the mine is a progressive process, and the prior art can not reach the technology required by the full intelligent mining of the mine. Therefore, a new mine production system under intelligent mining conditions is sought to be used as a precursor of full-intelligent mining of mines, and the full-intelligent mining is laid and developed.
Disclosure of Invention
The invention aims to provide a coal mine production system under an intelligent mining condition, which can be developed by integrating the prior art and provides a novel working face production mode, so that the original mode of relying on return air of a return airway is changed, and the production system of a mine becomes more reasonable under the intelligent mining condition.
The invention is realized by adopting the following technical scheme:
a coal mine production system under intelligent mining conditions comprises a main well, an auxiliary well, a large track roadway and a large transport roadway which are arranged in parallel, wherein bottom shaft yards are built at the bottom ends of the main well and the auxiliary well, the bottom shaft yards separate air flows in the main well and the auxiliary well through air doors, and the large track roadway is connected with the bottom shaft yards through main track stone doors; the transportation main roadway is connected with a shaft bottom parking lot through a main transportation stone gate; the track main roadway is connected with the track upslope through a goaf of the track in the mining area; the transportation main roadway is connected with the transportation ascending mountain through a mining area transportation rock gate; a mining area coal bunker is arranged at the end part of a mining area of the large transportation roadway, the mining area track stone gate and the mining area transportation stone gate are positioned on a train yard at the lower part of the mining area, and the train yard at the lower part of the mining area separates the airflow in the upper transportation mountain and the upper rail mountain by arranging an air gate; the transportation ascending and the rail ascending pass through a driving working face and then pass through a to-be-mined area and a mining area to reach a mining area winch house, coal mining working faces are arranged on two sides of the mining area, and cutting holes are arranged on two sides of the to-be-mined area; the coal mining working faces on the two sides are respectively connected with a stope I in the middle of a mining area, a transport ascending mountain and a track ascending mountain through a transport crossheading I; the cutting holes on the two sides are respectively connected with a stope II in the middle of the mining area, a transport ascending mountain and a track ascending mountain through a transport crossheading II; the transportation crossheading I and the transportation crossheading II are separated from the wind flow in the transportation upheave and the rail upheave respectively through a plurality of air doors; and a stope middle yard is arranged at the intersection of the tunneling working surface and the transport ascending and the track ascending, and a stope substation is arranged between the transport ascending and the track ascending in front of the stope middle yard III.
The coal mine production system under the intelligent mining condition is characterized in that a mine is mainly provided with: the auxiliary shaft is responsible for air inlet and lifting of personnel, material gangue and equipment, and the main shaft is responsible for air return and lifting of coal; and the large rail lane is responsible for air inlet and transportation of gangue materials and equipment, and the large transportation lane is responsible for return air and transportation of coal. The wind flow mainly flows through the rail and the transportation uphill, and a plurality of air doors are arranged in the transportation gate way to seal the coal face, so that the wind flow is prevented from entering the coal face. The coal face is not provided with a return air crossheading, and the transportation crossheading is machine-rail integrated transportation and is used for transporting produced coal, materials, gangue and equipment.
When the coal mining device works, coal mined from a coal mining working face is transported to a coal bunker of a mining area through a transportation gate way and a main transportation stone gate, and then is transported to a shaft bottom yard through a transportation main roadway and a main transportation stone gate after being loaded with the coal, and is lifted to the ground through a main well. Fresh air flow enters the underground from the ground through the auxiliary shaft and enters a mining area winch house through a main track stone gate, a track main roadway, a mining area track stone gate and a track ascending mountain. Then the water is discharged to the ground from a main well through a transportation goaf, a transportation main roadway and a main transportation goaf in a transportation mountain and a mining area. And a separate air return main roadway and an air return shaft are not additionally arranged. The mine car is lowered from the auxiliary shaft to the bottom of the well, lifted from the upper part of the track to the middle of the mining area via the main track gate, the track roadway and the mining area track gate, and then enters the transportation gate and is transported to the coal face and the cutting hole. The materials, equipment and gangue carried out by the coal face are carried to the ground by the mine car in the direction opposite to the material conveying system. The coal face is not ventilated, and workers usually do not enter the face and are in charge of remote control and maintenance and the like. The coal face is arranged in an L shape without air supply, so that no return airway is arranged and no protective coal pillar is reserved. The intelligent coal mining equipment reaches the position of the cut hole through the transportation gate way to perform coal cutting and mining work. After the coal mining work is finished, the coal is evacuated from the reserved withdrawal channel and conveyed to the position of the cut hole through the transportation crossheading of the next working face, the next stage of coal mining work is carried out, and the next working face does not need to utilize the transportation crossheading return air of the previous working face, so that a protective coal pillar is not reserved.
Compared with the prior art, the coal mine production system under the intelligent mining condition has the following advantages:
1. the arrangement of a return air main roadway, a working face return air roadway and a return air shaft is cancelled, so that a more concise roadway system is realized, and the tunneling amount and the maintenance work are greatly reduced.
2. Air is not supplied to the coal face, so that the oxygen content of the environment of the face is low, the conditions of explosion of gas and dust and spontaneous combustion and ignition of coal cannot be met, the threats of a series of disasters are reduced, and the work of fire prevention, fire extinguishment and explosion prevention of the face is reduced.
3. The coal face adopts an L-shaped arrangement form, so that the tunneling amount of a roadway can be reduced, and more coal resources can be exploited.
4. The safety of the coal face is improved, unmanned operation is achieved, and workers are in charge of remote control and other daily management work in the pit.
5. The process of advancing to the fully intelligent mining in the traditional mine mining mode at present is promoted.
The invention has reasonable design and good practical application value.
Drawings
Fig. 1 shows a schematic diagram of the overall arrangement of a coal mine production system.
Fig. 2 shows a schematic view of a part of a coal mine production system.
In the figure: 1-main shaft, 2-auxiliary shaft, 3-shaft bottom station, 4-main track goaf, 5-main transport goaf, 6-track goaf, 7-transport goaf, 8-mining area track goaf, 9-mining area transport goaf, 10-mining area lower station, 11-mining area bunker, 12-transport mountain, 13-track mountain, 14 a-transport gate I, 14 b-transport gate II, 15-coal face, 16-mining area, 17-cutting hole, 18 a-mining area middle station I, 18 b-mining area middle station II, 18 c-mining area middle station III, 19-mining area winch house, 20-tunneling face, 21-mining area substation, 22-connection lane, 24-air door, 25-isolation door, 26-withdrawal of the channel.
Detailed Description
The following detailed description of specific embodiments of the invention refers to the accompanying drawings.
A coal mine production system under an intelligent mining condition is shown in figure 1 and comprises a main well 1, an auxiliary well 2, a large track roadway 6 and a large transport roadway 7 which are arranged in parallel, wherein a bottom-hole yard 3 is built at the bottom ends of the main well 1 and the auxiliary well 2, and the bottom-hole yard 3 separates air flows in the main well 1 and the auxiliary well 2 through an air door 24. The large track roadway 6 is connected with the bottom-hole train yard 3 through a main track stone gate 4, and the large transport roadway 7 is connected with the bottom-hole train yard 3 through a main transport stone gate 5. The track main roadway 6 is connected with the track upper mountain 13 through a mining area track stone gate 8; the transportation main lane 7 is connected with a transportation ascending mountain 12 through a mining area transportation stone gate 9; the end part of the mining area of the transportation main roadway 7 is provided with a mining area coal bunker 11, a mining area track stone gate 8 and a mining area transportation stone gate 9 are positioned on a lower mining area train yard 10, and the lower mining area train yard 10 separates the airflow in a transportation upper mountain 12 and a track upper mountain 13 by arranging an air door 24. The transport upper hill 12 and the track upper hill 13 pass through the driving face 20 and then pass through the area to be mined and the mining area to reach the mining area winch house 19. Coal mining working faces 15 are arranged on two sides of the mining area, and cutting holes 17 are arranged on two sides of the area to be mined; the coal mining working faces 15 on the two sides are respectively connected with a stope middle part I18 a, a transport ascending mountain 12 and a track ascending mountain 13 through a transport crossheading I14 a; the cutting holes 17 on the two sides are respectively connected with a driving yard II 18b in the middle of the mining area, a transporting ascending mountain 12 and a track ascending mountain 13 through a transporting crossheading II 14 b. The transport gateway I14 a and the transport gateway II 14b are separated from the wind flow in the transport ascending mountain 12 and the track ascending mountain 13 by a plurality of wind doors 24, respectively. A middle stope III 18c is arranged at the intersection of the tunneling working face 20, the transportation ascending mountain 12 and the track ascending mountain 13; and a mining area substation 21 is arranged between the transportation ascending mountain 12 and the track ascending mountain 13 in front of the middle parking lot III 18 c. A connecting lane 22 is arranged between the track main lane 6 and the transportation main lane 7; a connecting roadway 22 is arranged between the transportation ascending mountain 12 and the track ascending mountain 13; the communication lane 22 is provided with a damper 24 for isolating the air flow.
As shown in fig. 2, isolation doors 25 are arranged between the rail ascending mountain 13 and the transportation gate I14 a and the transportation gate II 14 b. Withdrawal passages 26 are arranged in the area to be mined and the mining area and are connected with the transportation gateway I14 a and the transportation gateway II 14b respectively.
The coal mine production system under the intelligent mining condition is mainly characterized in that: the auxiliary shaft 2 is responsible for air inlet and lifting of personnel, material gangue and equipment, and the main shaft 1 is responsible for air return and lifting of coal; and the two main lanes, namely the track main lane 6 is responsible for air inlet and transportation of gangue materials and equipment, and the transportation main lane 7 is responsible for return air and transportation of coal. The wind flow mainly flows through the rail ascending 13 and the transportation ascending 12, and a plurality of air doors are arranged in the transportation gate way to seal the coal face 15, so that the wind flow is prevented from entering the coal face. The coal face is not provided with a return air crossheading, and the transportation crossheading is machine-rail integrated transportation and is used for transporting produced coal, materials, gangue and equipment. The coal face is not ventilated, and workers usually do not enter the face and are in charge of remote control and maintenance and the like. The coal mining tunnel is small in air volume and supplies oxygen, operation and maintenance equipment and the like of production personnel are only maintained, and professionals wear equipment such as oxygen bottles and the like to take charge of maintenance and other work of intelligent equipment on a coal mining working face. The working faces are arranged in an L shape, and after one coal mining working face is finished, the next working face does not need to utilize the transportation crossheading return air of the previous working face, so that a protective coal pillar is not reserved. And the L-shaped coal-pillar-free and ventilation-free working face stoping roadway arrangement system reduces the roadway excavation amount and improves the resource utilization rate.
In specific application, the production system of the mine is arranged as follows:
(1) a coal conveying system: the coal mined from the coal mining working face 15 is transported to a coal bunker 11 of a mining area through a transportation gate way 14a and a transportation ascending 12, and then is transported to a shaft bottom yard 3 through a transportation main roadway 7 and a main transportation stone gate 5 after being loaded with the coal, and is lifted to the ground through a main well 1.
(2) A ventilation system: fresh air flow enters the underground from the ground through the auxiliary well 2 and enters a mining area winch house 19 through a main track stone gate 4, a track main roadway 6, a mining area track stone gate 8 and a track ascending 13. Then the water is discharged to the ground from the main well 1 through a transportation ascending 12, a mining area transportation goaf 9, a transportation main roadway 7 and a main transportation goaf 5. And a separate air return main roadway and an air return shaft are not additionally arranged.
(3) Pipe transportation waste rock discharge system: materials and equipment required by the coal face 15 and the cutting holes 17 are lowered to a bottom shaft parking lot 3 from an auxiliary shaft 2 by a mine car, lifted to a middle parking lot I18 a and a middle parking lot II 18b of a mining area from an upper rail 13 through a main rail rock gate 4, a large rail roadway 6 and a mining area rail rock gate 8, then enter a transportation gateway I14 a and a transportation gateway II 14b, and then are transported to the coal face 15 and the cutting holes 17.
The material, equipment recovered from the coal face 15 and the mine car hauled off the driving face are hauled to the ground in the opposite direction to the haulage system.
(4) A drainage system: water in the coal face 15 flows to a sump of the shaft bottom parking lot 3 through a water channel on one side of a roadway such as a transportation gate 14a, a transportation uphill 12, a mining area transportation stone door 9, a transportation main roadway 7, a main transportation stone door 5 and the like, and is discharged to the ground through a water pump in a water pump room through a water discharge pipeline in the auxiliary well 2.
(5) A pedestrian system: the workers enter a shaft bottom parking lot 3 from the auxiliary well 2, reach a required working place in the sections from a main transportation stone gate 5, a transportation main roadway 7, a mining area transportation stone gate 9, a transportation ascending mountain 12 to a mining area winch house 19, and return to the ground surface after the work is finished.
(6) A power supply system: the mine ground substation supplies high-voltage electricity of required grade to a central substation of an underground shaft bottom yard through a high-voltage cable laid in the auxiliary well 2; through cables laid on a large transportation roadway and a large transportation top list, the central substation supplies power to the mining area substation, and the mining area substation supplies power to all electric equipment of a coal face, a tunneling face and the like.
(7) Arrangement of coal face: the coal face is arranged in an L shape without air supply, so that no return airway is arranged and no protective coal pillar is reserved. The intelligent coal mining equipment reaches the position of the cut hole through the transportation gate way to perform coal cutting and mining work. After the coal mining work is finished, the coal is evacuated from the reserved withdrawal channel, and is conveyed to the position of the cut hole through the transportation gate way of the next working face, and the coal mining work of the next stage is carried out.
(8) Arrangement of a main well: the main well is responsible for the air return of the whole mine besides the lifting of coal. A main ventilator, an auxiliary ventilator, an explosion door, a back-wind channel and other safety protection devices are required to be arranged at a wellhead.
It should be noted that modifications and applications may occur to those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a coal mine production system under intelligent mining condition which characterized in that: the system comprises a main well (1), an auxiliary well (2), a large track roadway (6) and a large transport roadway (7) which are arranged in parallel, wherein a bottom-hole yard (3) is built at the bottom ends of the main well (1) and the auxiliary well (2), and the bottom-hole yard (3) separates air flows in the main well (1) and the auxiliary well (2) through an air door (24); the large track roadway (6) is connected with the bottom-hole train yard (3) through a main track stone gate (4), and the large transport roadway (7) is connected with the bottom-hole train yard (3) through a main transport stone gate (5); the track main roadway (6) is connected with the track upper mountain (13) through a mining area track stone gate (8); the transportation main roadway (7) is connected with a transportation ascending mountain (12) through a mining area transportation stone gate (9); a mining area coal bunker (11) is arranged at the mining area end of the large transportation roadway (7), the mining area track stone gate (8) and the mining area transportation stone gate (9) are located on a lower mining area train yard (10), and the lower mining area train yard (10) separates air flow in a transportation upper mountain (12) and a track upper mountain (13) by arranging an air door (24); the transport upward mountain (12) and the track upward mountain (13) pass through a driving working face (20) and then pass through a to-be-mined area and a mining area to reach a mining area winch house (19), coal mining working faces (15) are arranged on two sides of the mining area, and cutting holes (17) are arranged on two sides of the to-be-mined area; the coal mining working faces (15) on two sides are respectively connected with a stope middle part parking lot I (18 a), a transportation ascending mountain (12) and a track ascending mountain (13) through a transportation crossheading I (14 a); the cutting holes (17) on the two sides are respectively connected with a stope middle part train yard II (18 b), a transport ascending mountain (12) and a track ascending mountain (13) through a transport crossheading II (14 b); the transportation gate I (14 a) and the transportation gate II (14 b) are respectively separated from the wind flow in the transportation ascending mountain (12) and the track ascending mountain (13) through a plurality of air doors (24); and a stope middle yard III (18 c) is arranged at the intersection of the tunneling working surface (20) and the transport ascending mountain (12) and the track ascending mountain (13), and a stope substation 21 is arranged between the transport ascending mountain 12 and the track ascending mountain 13 in front of the stope middle yard III (18 c).
2. A coal mine production system under intelligent mining conditions as claimed in claim 1 wherein: and a connecting roadway (22) is arranged between the track main roadway (6) and the transportation main roadway (7).
3. A coal mine production system under intelligent mining conditions as claimed in claim 1 or claim 2 wherein: and a connecting roadway (22) is arranged between the transportation ascending mountain (12) and the track ascending mountain (13).
4. A coal mine production system under intelligent mining conditions as claimed in claim 3 wherein: the connecting lane (22) is provided with a damper (24).
5. A coal mine production system under intelligent mining conditions as claimed in claim 1 wherein: isolation doors (25) are arranged between the rail ascending mountain (13) and the transportation crossheading I (14 a) and the transportation crossheading II (14 b).
6. A coal mine production system under intelligent mining conditions as claimed in claim 1 wherein: withdrawal channels (26) are arranged in the area to be mined and the mining area and are connected with the transportation gateway I (14 a) and the transportation gateway II (14 b) respectively.
7. A coal mine production system under intelligent mining conditions as claimed in claim 1 wherein: the coal face (15) and the open-off cut (17) are arranged in an L shape.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021031561A1 (en) * | 2020-01-21 | 2021-02-25 | 山东科技大学 | Tunneling-free and coal pillar-free mining and construction method wherein coal mine field is not divided into mining areas |
| CN113027459A (en) * | 2021-04-25 | 2021-06-25 | 中国矿业大学 | Coal and coal series symbiotic bauxite coordinated mining system and uplink exploitation extension method thereof |
| CN113530539A (en) * | 2021-08-02 | 2021-10-22 | 北京中矿创新联盟能源环境科学研究院 | Intelligent N00 mine gas simultaneous mining method |
| CN113738360A (en) * | 2021-09-08 | 2021-12-03 | 国家能源集团宁夏煤业有限责任公司 | Mining method for underground coal mine fully mechanized coal mining face |
| CN115653672A (en) * | 2022-06-22 | 2023-01-31 | 中国矿业大学 | Intelligent transfer system for auxiliary inclined shaft bottom yard and control method |
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2019
- 2019-11-21 CN CN201911145781.2A patent/CN110700831A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021031561A1 (en) * | 2020-01-21 | 2021-02-25 | 山东科技大学 | Tunneling-free and coal pillar-free mining and construction method wherein coal mine field is not divided into mining areas |
| CN113027459A (en) * | 2021-04-25 | 2021-06-25 | 中国矿业大学 | Coal and coal series symbiotic bauxite coordinated mining system and uplink exploitation extension method thereof |
| CN113027459B (en) * | 2021-04-25 | 2021-09-24 | 中国矿业大学 | Coal and coal series symbiotic bauxite coordinated mining system and uplink exploitation extension method thereof |
| CN113530539A (en) * | 2021-08-02 | 2021-10-22 | 北京中矿创新联盟能源环境科学研究院 | Intelligent N00 mine gas simultaneous mining method |
| CN113530539B (en) * | 2021-08-02 | 2024-02-20 | 北京中矿创新联盟能源环境科学研究院 | Intelligent N00 mine gas simultaneous production method |
| CN113738360A (en) * | 2021-09-08 | 2021-12-03 | 国家能源集团宁夏煤业有限责任公司 | Mining method for underground coal mine fully mechanized coal mining face |
| CN113738360B (en) * | 2021-09-08 | 2023-09-22 | 国家能源集团宁夏煤业有限责任公司 | Mining method for underground fully-mechanized mining face of coal mine |
| CN115653672A (en) * | 2022-06-22 | 2023-01-31 | 中国矿业大学 | Intelligent transfer system for auxiliary inclined shaft bottom yard and control method |
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