CN108425674B - A kind of coal-mining method of open coal mine end side coal - Google Patents

A kind of coal-mining method of open coal mine end side coal Download PDF

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CN108425674B
CN108425674B CN201810260700.2A CN201810260700A CN108425674B CN 108425674 B CN108425674 B CN 108425674B CN 201810260700 A CN201810260700 A CN 201810260700A CN 108425674 B CN108425674 B CN 108425674B
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coal
head
tail
end side
rotation
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CN108425674A (en
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马成溪
汪有刚
贾光胜
付天光
张雷
杨雪成
马少翀
李凌峰
池津维
刘瑾
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CCTEG ENERGY INVESTMENT Co.,Ltd.
CHINA COAL SCIENCE AND TECHNOLOGY ENERGY TECHNOLOGY DEVELOPMENT Co.,Ltd.
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CCTEG ENERGY INVESTMENT Co Ltd
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Priority to PCT/CN2018/104672 priority patent/WO2019184257A1/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/26Methods of surface mining; Layouts therefor
    • E21C41/28Methods of surface mining; Layouts therefor for brown or hard coal
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C35/00Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/24Remote control specially adapted for machines for slitting or completely freeing the mineral

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  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Remote Sensing (AREA)
  • Mechanical Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

The invention discloses a kind of coal-mining methods of open coal mine end side coal, comprehensive mechanical coal mining complete equipment is used for the first time, help coal in end for exploiting open coal mine, the end of stope side is divided into the rotation of end side and drives into end, end side main paragraph coal and the rotation of end side and be driven out to end the following steps are included: opposite end side has carried out region division first by the coal-mining method;Then using comprehensive mechanical coal mining complete equipment successively to carry out after arriving first, end end coal mining is driven into side rotation in end, main paragraph coal mining is helped at end and side rotation in end is driven out to end end coal mining.The coal-mining method of open coal mine end side of the present invention coal, process have very strong continuity in the time, adaptable to irregular end side; comprehensive high stoping rate; the length of service of open coal mine is improved, surrounding enviroment are also protected and improve, realizes the environmentally protective exploitation of coal mine and sustainable development.

Description

A kind of coal-mining method of open coal mine end side coal
Technical field
The present invention relates to coal mining technology fields, and in particular to a kind of coal-mining method of open coal mine end side coal, especially The exploitation of end side coal suitable for Waste Dump inside Open Pit Mine periphery.
Background technique
The Coal Mine Coal Reserve of northern China is abundant, especially the ground such as Shanxi, the Inner Mongol and Shaanxi, and small-sized open coal mine quantity is many More, coal annual output is between 600,000 tons to 3,000,000 tons.However, being located at the highwall (being commonly called as end side) of field of opencast mining end, no Weary good coal resource, for various reasons, most end side has to be abandoned in coal seam.Only a small number of end side coals are adopted at present It the methods of is adopted with lane and is simply recycled, or by adjacent pit mining after opencut closes hole.
Due to being limited by Mining technology condition, traditional pit mining mode cannot effectively, fully recycle these Resource, strip mining transformation mode have increased considerably cost of winning again, thus cause a large amount of wastes of first front end side coal resource.Especially For nearly horizontal or semi-steep open coal mine bed, the exposure in the regular period between mining work side and In-pit dumping working pit edge In the highwall of the two sides Cai Keng (mining work is helped and In-pit dumping working pit edge is dynamic mobile during coal mining), in outdoor coal Ore mining cheats end and the bottom in exposure coal seam is helped to arrange that coal excavation apparatus, coal excavation apparatus are dug into highwall along coal seam and establish end helper work Face helps coal using certain recovery method back production end and is transported to coal to adopt other than the boundary of hole, and this mining way is known as holding Side mines.Since high wall mining does not need individually to carry out the removing of rock stratum or the capital construction of coal face, the exploitation of end side coal Advantage of lower cost.High wall mining not only can be recycled end side pressure coal, improve the coal resource rate of extraction, can also reduce the coal of open coal mine Pollution, improves mining area ecological environment, has significant economic benefit and social benefit.
Current high wall mining method includes that common end side pressure coal method, row pressure footwork in steep side back production, outdoor is adopted in joint stripping Twist bit back production method, well work footrill formula back production method, outdoor high wall mining machine back production method etc..The method of these high wall minings is universal The features such as discontinuous, removing and cost of winning are high in the presence of production, and the problem low in the prevalence of coal mining rate, comprehensive mechanization are adopted Coal technique has very high continuous production and coal mining efficiency, has been applied to the digging in the main body coal seam of conventional coal mine at present, but It is not applied in high wall mining also.
Fully mechanized coal winning technology (referred to as " fully mechanized mining ") refers to brokenly coal, coalings, transporting coal, the main production process such as supporting The coal winning technology for all realizing mechanization, is the coal winning technology the most advanced being widely used at present, the equipment of use is referred to as comprehensive Mechanical coal mining complete equipment is closed, comprehensive mechanical coal mining complete equipment mainly includes that coalcutter, drag conveyor (are commonly called as slipping Son), multiple hydraulic supports (referred to as " three machines ").Drag conveyor is set to the coal seam antetheca of fully-mechanized mining working, commonly referred to as before Portion's transporter is made of head, fuselage and tail, guide rail is provided on the conveyer of front, chute is for falling coalcutter cutting Under coal body conveyed, flexible flightconveyor is the prevailing traffic equipment of fully-mechanized coalface, in addition to fortune Except delivering coal, it is alternatively arranged as the running track of coal-cutting machinery, the fulcrum of hydraulic support movement.Coalcutter is installed on guide rail, is adopted Coal machine is usually double-ended shearer, including cutting means and traction device, and cutting means includes being set to coalcutter both ends Left and right roller, helical blade is provided on roller, cutting means is for carrying out brokenly coal and coal cutting, traction device two sides to coal wall Piston shoes are provided with, the piston shoes of coalcutter two sides of the bottom are set on the guide rail of drag conveyor two sides, so that coalcutter is along scraper plate Conveyer longitudinal direction left and right back and forth movement.The rear side in drag conveyor is arranged side by side in multiple hydraulic supports, and common supporting forms work Make face, hydraulic support is self-advancing hydraulic support, top plate, the isolation goaf of working face is used to support and controls, to prevent cash Stone enters stope and drag conveyor, while can also move forward and propulsioning face drag conveyor, with coalcutter, scraper plate Conveyer matches, and realizes coal breakage, coalings, transporting coal, the full mechanization of supporting and caving process for stoping process.Integrated machine Tool coal mining complete equipment further includes crusher and loading machine.The fully mechanized mining step in current end side coal seam specifically includes that coalcutter Coal cutting → moving hydraulic support → pushes away front conveyer.
It can be seen that existing high wall mining has the following problems: (1) existing high wall mining equipment production is discontinuous, It is frequently necessary to equipment removal of home shifting face, causes side coal resources in end that cannot be completely extracted, reduces the rate of extraction of coal resource.(2) Fully mechanized coal winning technology has been applied to the digging in the main body coal seam of conventional coal mine at present, but is not applied to end side also and adopts In coal, the advantage of the high exploitation rate of fully mechanized mining is stayed in end side coal mining and is played.
Summary of the invention
The purpose of the present invention is to provide a kind of coal-mining methods of open coal mine end side coal, to solve existing open coal mine The low problem of the end side coal mining low efficiency and the rate of extraction on the middle periphery Cai Keng.
To achieve the above object, the technical scheme is that, a kind of coal-mining method of open coal mine end side coal is provided, is mentioned For the end side of open coal mine stope, end side includes holding side rotation to drive into end, end side main paragraph coal and side rotation being held to be driven out to end, end side End is driven into rotation and side rotation in end is driven out to the both ends that end is located at end side main paragraph coal, using comprehensive mechanical coal mining complete equipment letter Claim fully-mechanized mining equipment, which includes drag conveyor, coalcutter and hydraulic support, and coalcutter is double-ended shearer, Roller of the middle coalcutter close to head end is head drum, and coalcutter is aircraft tail cylinder close to the roller of machine tail end, for exploiting Coal is helped at the end of open coal mine, the coal-mining method the following steps are included:
A. by the carry out region division of end side, the end side of stope is divided into the rotation of end side and drives into end, end side main paragraph coal Rotation is helped to be driven out to end with end, wherein the end, which is helped to rotate to drive into end and end side and rotate to be driven out to hold, is located at the end head of a secret society body The both ends of section coal;
B. using comprehensive mechanical coal mining complete equipment from arrive first rear order successively carry out end side rotation drive into end end coal open It adopts, side main paragraph coal mining and the rotation of end side is held to be driven out to end end coal mining, wherein the geometry at end is driven into end side rotation The a quarter cylindrical body to be formed is rotated by 90 ° around rotary shaft for Plane of rotation, the geometry of end side main paragraph coal is One cuboid.
Further, the rotation of end side drive into end end coal mining method the following steps are included:
Step S101: fully-mechanized mining equipment is arranged along end side coal wall on the seat earth of stope, voluntarily cutting goes out branch to coalcutter Protect section;
Step S102: raising aircraft tail cylinder, reduces head drum, and coalcutter drives into the first head starting point of end from the rotation of end side Xiang Duanbang rotation drives into the first tail terminal of end along straight line coal cutting, while mobile hydraulic support, by the head of drag conveyor and Fuselage slave head end successively pushes coal wall to machine tail end, and after coalcutter reaches machine tail end, aircraft tail cylinder continues coal cutting, until cutting Then coal wall near machine tail end reduces the ground coal of aircraft tail cylinder cutting mill tail end;
Step S103: raising head drum, and the head being gradually increased towards head end deviates angular coal wall beveling feed Coal cutting, the head offset distance that trace is gradually increased reach the rotation of end side and drive into the first chamfered section end of end, while movable hydraulic Bracket pushes the tail of drag conveyor and fuselage to coal wall;
Step S104: reducing head drum, raises aircraft tail cylinder, the head back that coalcutter is gradually reduced away from head end Digression chamfers feed coal cutting to coal wall, and the head that trace is gradually increased deviates from the rotation of distance arrival end side and drives into the second chamfered section of end To coal wall is pushed the tail of drag conveyor and fuselage in end, while mobile hydraulic support;
Step S105: repeating step S103 and step 104, until coalcutter, which drives into end from the rotation of end side, terminates tail vertex cut Coal returns to the rotation of end side and drives into the first head starting point of end, while mobile hydraulic support, by the tail of drag conveyor and fuselage from Machine tail end successively pushes coal wall to head end, and the circulation of a closure is completed in the coal cutting path of coalcutter;
Step S106: repeating step S102 to step S105, until the tail rotation of drag conveyor deviates original position 90 degree, drag conveyor vertical end help peeling direction, drag conveyor reach exactly to end side main paragraph coal.
Further, end side main paragraph coal mining method the following steps are included:
Step S201: raising aircraft tail cylinder, reduces head drum, coalcutter from end side main paragraph coal the first head starting point to End side the first tail of main paragraph coal terminal is along perpendicular to coal seam peeling direction straight line coal cutting, while mobile hydraulic support, by scraper plate The head and fuselage slave head end of conveyer successively push coal wall to machine tail end, after coalcutter reaches machine tail end, aircraft tail cylinder after Then continuous coal cutting reduces the ground coal of aircraft tail cylinder cutting mill tail end until cutting the coal wall near machine tail end;
Step S202: raising head drum, at tail 25m to 40m utilize head drum towards head end chamfer Feed coal cutting, until reaching end helps the first chamfered section of main paragraph coal end;
Step S203: reducing head drum, raise aircraft tail cylinder, and aircraft tail cylinder cuts the coal wall near machine tail end, reaches Side the second tail of main paragraph coal terminal in end reduces the ground coal of aircraft tail cylinder cutting mill tail end, while mobile hydraulic support, and scraper plate is defeated The tail of machine is sent to push coal wall to;
Step S204: raising head drum, reduces aircraft tail cylinder, and coalcutter drives towards the coal cutting of head end from machine tail end, simultaneously Mobile hydraulic support successively pushes the tail of drag conveyor and fuselage to coal wall from machine tail end to head end, until coalcutter It reaches end and helps the second head of main paragraph coal end;
Step S205: raising aircraft tail cylinder, reduces head drum, in utilizing aircraft tail cylinder court apart from head 25m to 40m at Feed coal cutting is chamfer to machine tail end, until reaching end helps the second chamfered section of main paragraph coal end;
Step S206: raising head drum, reduces aircraft tail cylinder, and head drum cuts the coal wall near head end, reaches Side main paragraph coal third head terminal in end reduces the ground coal of head drum cutting mill head end, while mobile hydraulic support, and scraper plate is defeated It send the head of machine to push coal wall to, completes a process cycles;
Step S207: repeating step S201 to step S206, until drag conveyor reaches the rotation of end side and is driven out to end.
Further, the rotation of end side be driven out to end end coal mining method the following steps are included:
Step S301: raising aircraft tail cylinder, reduces head drum, and coalcutter is driven out to the first head starting point of end from the rotation of end side Xiang Duanbang rotation is driven out to the first tail terminal of end along perpendicular to coal seam peeling direction straight line coal cutting, while mobile hydraulic support, will The head and fuselage slave head end of drag conveyor successively push coal wall to machine tail end, after coalcutter reaches machine tail end, tail rolling Cylinder continues coal cutting, until cutting the coal wall near machine tail end, then reduces the ground coal of aircraft tail cylinder cutting mill tail end;
Step S302: raising head drum, and the head that head drum is gradually increased towards head end deviates angular coal wall Feed coal cutting is chamfer, the head offset distance that trace is gradually increased reaches the rotation of end side and is driven out to the first chamfered section end of end, simultaneously Mobile hydraulic support successively pushes the tail of drag conveyor and fuselage to coal wall from machine tail end to head end;
Step S303: reducing head drum, raises aircraft tail cylinder, the head back that coalcutter is gradually reduced away from head end Digression chamfers feed coal cutting to coal wall, and the head that trace is gradually increased deviates from the rotation of distance arrival end side and is driven out to the second chamfered section of end To coal wall is successively pushed the fuselage of drag conveyor and tail slave head end to machine tail end in end, while mobile hydraulic support;
Step S304: repeating step S302 and step 303, until coalcutter, which is driven out to end from the rotation of end side, terminates tail vertex cut Coal returns to the rotation of end side and is driven out to the first head starting point of end, while mobile hydraulic support, by the tail of drag conveyor and fuselage from Machine tail end successively pushes coal wall to head end, and the circulation of a closure is completed in the coal cutting path of coalcutter;
Step S305: repeating step S301 to step S304, until the tail rotation of drag conveyor is driven out to the rotation of end side It is driven out to end.
Preferably, end end coal mining, end side main paragraph coal mining and the rotation of end side are driven into end side rotation Being driven out to end end coal mining is continuous in timing.
Preferably, it is that Plane of rotation is rotated by 90 ° to be formed around rotary shaft that end side rotation, which is driven out to the geometry at end, A quarter cylindrical body, and the rotary shaft that the rotary shaft at end is driven into side rotation in the end and side rotation in the end is driven out to end is located at institute State the ipsilateral of end side main paragraph coal.
Preferably, the step S102 to the step S106, the head holding are not moved, and the tail surrounds head Rotation.
Preferably, the step S301 to the step S305, the head holding are not moved, and the tail surrounds head Rotation.
Preferably, coalcutter the end side rotation drive into end and the end side rotation be driven out to end coal mining trace path it is equal For zigzag.
The present invention has the advantage that
(1) coal-mining method of open coal mine end side of the present invention coal, after coal excavation apparatus drives into end side, due to the rotation of end side Turning to drive into end end coal mining, end side main paragraph coal mining and the rotation of end side to be driven out to end end coal mining is continuity in timing, After without interrupting coal mining activity, the timing continuity of coal mining is strong, therefore complete equipment machine tail end travels in end is helped into U-shaped path It is driven out to, avoids the support time of well work fully mechanized mining end, mine high-efficient, the production capacity of coal is big.
(2) coal-mining method of open coal mine end side of the present invention coal, since head holding is not moved, only tail encloses Small to the mobile space requirement of the coal seam antetheca of fully-mechanized mining working around head rotating, coal excavation apparatus is installed along coal wall, is just had Standby propulsioning condition arbitrarily can to flexible rotation be avoided when encountering to irregular end side, not need removal of home shifting face, can edge Irregular end side carries out continuing propulsion, adaptable to irregular end side.
(3) coal-mining method of open coal mine end side of the present invention coal, is greatly improved production efficiency and integrates back Rate is adopted, the length of service of open coal mine is improved, resource recovery, protection and improvement environment is improved, realizes coal mine green ring Protect exploitation and sustainable development.
Detailed description of the invention
Fig. 1 is the region division schematic diagram for the end side that embodiment 1 provides.
Fig. 2 is the coalcutter coal mining path schematic diagram that embodiment 1 provides.
Fig. 3 is that end coalcutter coal mining circulating path detail drawing is driven into the end side rotation that embodiment 1 provides.
Fig. 4 is that main paragraph coal coalcutter coal mining circulating path detail drawing is helped at the end that embodiment 1 provides.
Fig. 5 is that the end side rotation that embodiment 1 provides is driven out to end coal mining circulating path detail drawing.
Description of symbols: the end side of 500- stope;End is driven into side rotation in the end 100-;Help main paragraph coal in the end 200-;300- Side rotation in end is driven out to end;The seat earth of 400- stope;A- handpiece of scraper conveyer end;B, B '-scraper conveyor tail end;α- Head deviation angle;β-head deviates from angle;S- head offset distance;D- head deviates from distance.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment 1
The present embodiment 1 provides a kind of coal-mining method of open coal mine end side coal, provides the end side of open coal mine stope, end side End, end side main paragraph coal and the rotation of end side are driven into including the rotation of end side and is driven out to end, and end is driven into side rotation in end and side rotation in end is driven out to End is located at the both ends of end side main paragraph coal, using comprehensive mechanical coal mining complete equipment abbreviation fully-mechanized mining equipment, the fully-mechanized mining equipment packet Include SGZ1000/1050 type drag conveyor, MG300/700-WD type double-ended shearer and the hydraulic branch of ZY7200/20/40 type Frame, roller of the coalcutter close to head end are head drum, and coalcutter is aircraft tail cylinder, the coal mining side close to the roller of machine tail end Method the following steps are included:
One, the region division of end side:
The end side 500 of stope is divided into the rotation of end side according to geometrical characteristic and drives into end 100, end side 200 and of main paragraph coal Side rotation in end is driven out to end 300, and end 100 is driven into side rotation in end and side rotation in end is driven out to end 300 is located at end side main paragraph coal 200 two End;
Two, the exploitation of end coal is driven into side rotation in end:
Step S101: along end side, coal wall arranges fully-mechanized mining equipment on the seat earth 400 of stope, and voluntarily cutting goes out coalcutter Supporting section;
Step S102: raising aircraft tail cylinder, reduces head drum, and coalcutter drives into the first head starting point of end from the rotation of end side 1 drives into the first tail terminal 2 of end along straight line coal cutting to the rotation of end side, while mobile hydraulic support, by the head of drag conveyor Successively push coal wall to machine tail end with fuselage slave head end, coalcutter reaches machine tail end thickness, and aircraft tail cylinder continues coal cutting, until cutting Coal wall near saturating machine tail end, then reduces the ground coal of aircraft tail cylinder cutting mill tail end;
Step S103: raising head drum, and the head offset angle being gradually increased towards head end chamfers feed to coal wall Coal cutting, the head offset distance s that trace is gradually increased reach the rotation of end side and drive into the first chamfered section end 3 of end, while mobile liquid Bracket is pressed, pushes the tail of drag conveyor and fuselage to coal wall;
Step S104: reducing head drum, raises aircraft tail cylinder, the head back that coalcutter is gradually reduced away from head end Digression β chamfers feed coal cutting to coal wall, and the head that trace is gradually increased reaches the rotation of end side away from distance d and drives into the second beveling of end Section end 4, while mobile hydraulic support, push the tail of drag conveyor and fuselage to coal wall;
Step S105: repeating step S103 and step 104, until coalcutter, which drives into end from the rotation of end side, terminates tail point 5 Coal cutting returns to the rotation of end side and drives into the first head starting point 1 of end, while mobile hydraulic support, by the tail and fuselage of drag conveyor Successively push coal wall to from machine tail end to head end, the circulation of a closure is completed in the coal cutting path of coalcutter;
Step S106: repeating step S102 to step S105, until the tail rotation of drag conveyor deviates original position 90 degree, drag conveyor vertical end help peeling direction, drag conveyor reach exactly to end side main paragraph coal.
Three, the exploitation of end side main paragraph coal
Step S201: raising aircraft tail cylinder, reduces head drum, and coalcutter helps the first head of main paragraph coal starting point 6 from end Xiang Duanbang main paragraph the first tail of coal terminal 7 is along the straight line coal cutting perpendicular to coal seam peeling direction, while mobile hydraulic support, will The head and fuselage slave head end of drag conveyor successively push coal wall to machine tail end, after coalcutter reaches machine tail end, tail rolling Cylinder continues coal cutting, until cutting the coal wall near machine tail end, then reduces the ground coal of aircraft tail cylinder cutting mill tail end;
Step S202: raising head drum, at tail 15m to 25m utilize head drum towards head end chamfer Feed coal cutting, until reaching end helps the first chamfered section of main paragraph coal end 8;
Step S203: reducing head drum, raise aircraft tail cylinder, and aircraft tail cylinder cuts the coal wall near machine tail end, reaches End side the second tail of main paragraph coal terminal 9, reduces the ground coal of aircraft tail cylinder cutting mill tail end, while mobile hydraulic support, by scraper plate The tail of conveyer pushes coal wall to;
Step S204: raising head drum, reduces aircraft tail cylinder, and coalcutter drives towards the coal cutting of head end from machine tail end, simultaneously Mobile hydraulic support successively pushes the tail of drag conveyor and fuselage to coal wall from machine tail end to head end, until coalcutter It reaches end and helps the second head of main paragraph coal end 10;
Step S205: raising aircraft tail cylinder, reduces head drum, at tail 15m to 25m aircraft tail cylinder towards machine Tail end chamfers feed coal cutting, until reaching end helps the second chamfered section of main paragraph coal end 11;
Step S206: raising head drum, reduces aircraft tail cylinder, and head drum cuts the coal wall near head end, reaches End side main paragraph coal third head terminal 12, reduces the ground coal of head drum cutting mill head end, while mobile hydraulic support, by scraper plate The head of conveyer pushes coal wall to, completes a process cycles;
Step S207: repeating step S201 to step S206, until drag conveyor reaches the rotation of end side and is driven out to end.
Four, side rotation in end is driven out to the exploitation of the coal at end
Step S301: raising aircraft tail cylinder, reduces head drum, and coalcutter is driven out to the first head starting point of end from the rotation of end side 14 are driven out to the first tail terminal 15 of end along the straight line coal cutting perpendicular to coal seam peeling direction to the rotation of end side, while movable hydraulic branch Frame successively pushes the head of drag conveyor and fuselage slave head end to coal wall to machine tail end, after coalcutter reaches machine tail end, machine Stern barrel continues coal cutting, until cutting the coal wall near machine tail end, then reduces the ground coal of aircraft tail cylinder cutting mill tail end;
Step S302: raising head drum, and the head offset angle that head drum is gradually increased towards head end is to coal wall Feed coal cutting is chamfer, the head offset distance s that trace is gradually increased reaches the rotation of end side and is driven out to the first chamfered section end 16 of end, together When mobile hydraulic support, successively push the tail of drag conveyor and fuselage to coal wall from machine tail end to head end;
Step S303: reducing head drum, raises aircraft tail cylinder, the head back that coalcutter is gradually reduced away from head end Digression β chamfers feed coal cutting to coal wall, and the head that trace is gradually increased reaches the rotation of end side away from distance d and is driven out to the second beveling of end Section end 17, while mobile hydraulic support, successively push the fuselage of drag conveyor and tail slave head end to coal to machine tail end Wall;
Step S304: repeating step S302 and step 303, until coalcutter, which is driven out to end from the rotation of end side, terminates tail point 18 Coal cutting returns to the rotation of end side and is driven out to the first head starting point 14 of end, while mobile hydraulic support, by the tail and machine of drag conveyor Body successively pushes coal wall to from machine tail end to head end, and the circulation of a closure is completed in the coal cutting path of coalcutter;
Step S305: repeating step S301 to step S304, until the tail rotation of drag conveyor is driven out to the rotation of end side It is driven out to end 300.
Preferably, side rotation in end drives into end end coal mining, side main paragraph coal mining and the rotation of end side is held to be driven out to and end coal is held to open It is continuous for adopting in timing.
Preferably, it is that Plane of rotation is rotated by 90 ° to be formed around rotary shaft that side rotation in end, which is driven out to the geometry at end 300, A quarter cylindrical body, and the rotary shaft that the rotary shaft at end 100 is driven into side rotation and side rotation in end is driven out to end 300 is held to be located at end side Main paragraph coal 200 it is ipsilateral.
Preferably, step S102 to step S106, head holding are not moved, and tail surrounds head rotating.
Preferably, step S301 to step S305, head holding are not moved, and tail surrounds head rotating.
Preferably, coalcutter is in the coal mining trace path for holding side rotation to drive into end 100 and side rotation is held to be driven out to end 300 Zigzag.
It should be noted that the head offset angle that above embodiments refer to refer to the beveling direction of feed of coalcutter with The angle of end side peeling direction;Head refers to the beveling direction of feed of coalcutter and the angle of end side peeling direction away from angle beta. According to coal mining industry slang, head offset angle and head are that working face cyclic advance (is also known as removed away from angle beta Depth or cutting depth) and feed angle between;Head offset distance s and head deviate from distance d and are referred to as feed distance.
The present embodiment 1 also provides a kind of technical efficiency, based on the coal-mining method of above-mentioned open coal mine end side coal, below to this The technical efficiency of embodiment is described in detail.
Assuming that face length is 100m, propulsion length is 500m, and coal thickness is hm, then the comprehensive recovery of the coal-mining method Φ=(100*100* π * 1/4*h*2+100*300*h)/(100*500*h)=91.4%.
It can be seen that the high stoping rate of the coal-mining method.And it is positively correlated with the increase rate of recovery of face advanced distance. Although above having used general explanation and specific embodiment, the present invention is described in detail, on basis of the invention On, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore, without departing from These modifications or improvements on the basis of spirit of that invention, fall within the scope of the claimed invention.

Claims (9)

1. the coal-mining method of a kind of open coal mine end side coal, using comprehensive mechanical coal mining complete equipment, for exploiting outdoor coal Coal is helped at the end of mine, which includes drag conveyor, coalcutter and hydraulic support, and feature exists In, the coal-mining method the following steps are included:
A. the end side (500) of stope is divided into the rotation of end side and drives into end (100), end side main paragraph coal (200) and the rotation of end side It is driven out to end (300), wherein end (100) is driven into end side rotation and side rotation in the end is driven out to end (300) and is located at the end Help the both ends of main paragraph coal (200);
B. side rotation in end is successively carried out after arriving first using comprehensive mechanical coal mining complete equipment and drives into end end coal mining, end head of a secret society Body section coal mining and the rotation of end side are driven out to end end coal mining, wherein end side rotation drives into the geometry at end (100) as rotation Turn plane and is rotated by 90 ° a quarter cylindrical body to be formed, the geometry of end side main paragraph coal (200) around rotary shaft For a cuboid.
2. the coal-mining method of open coal mine end side as described in claim 1 coal, which is characterized in that the coalcutter is twin-roll Coalcutter, wherein roller of the coalcutter close to head end is head drum, and coalcutter is aircraft tail cylinder close to the roller of machine tail end, The rotation of end side drive into the method for end end coal mining the following steps are included:
Step S101: along end side, coal wall arranges comprehensive mechanical coal mining complete equipment on the seat earth (400) of stope, mines Voluntarily cutting goes out supporting section to machine;
Step S102: raising aircraft tail cylinder, reduces head drum, and coalcutter drives into the first head starting point (1) of end from the rotation of end side Xiang Duanbang rotation drives into the first tail terminal (2) of end along straight line coal cutting, while mobile hydraulic support, by the head of drag conveyor Successively push coal wall to machine tail end with fuselage slave head end, after coalcutter reaches machine tail end, aircraft tail cylinder continues coal cutting, until cutting Coal wall near saturating machine tail end, then reduces the ground coal of aircraft tail cylinder cutting mill tail end;
Step S103: raising head drum, and the head being gradually increased towards head end deviates angular coal wall beveling feed coal cutting, The head offset distance that trace is gradually increased reaches the rotation of end side and drives into the first chamfered section end (3) of end, while movable hydraulic branch Frame pushes the tail of drag conveyor and fuselage to coal wall;
Step S104: reducing head drum, raises aircraft tail cylinder, the head that coalcutter is gradually reduced away from head end is away from angle Feed coal cutting is chamfer to coal wall, the head that trace is gradually increased deviates from the rotation of distance arrival end side and drives into the second chamfered section end of end (4), while mobile hydraulic support, push the tail of drag conveyor and fuselage to coal wall;
Step S105: repeating step S103 and step 104, cuts up to coalcutter drives into end end tail point (5) from the rotation of end side Coal returns to the rotation of end side and drives into the first head starting point (1) of end, while mobile hydraulic support, by the tail and fuselage of drag conveyor Successively push coal wall to from machine tail end to head end, the circulation of a closure is completed in the coal cutting path of coalcutter;
Step S106: repeating step S102 to step S105, until the tail rotation of drag conveyor deviates the 90 of original position Degree, drag conveyor vertical end help peeling direction, and drag conveyor reaches exactly to end side main paragraph coal.
3. the coal-mining method of open coal mine end side as described in claim 1 coal, which is characterized in that the coalcutter is twin-roll Coalcutter, wherein roller of the coalcutter close to head end is head drum, and coalcutter is aircraft tail cylinder close to the roller of machine tail end, The method of end side main paragraph coal mining the following steps are included:
Step S201: raising aircraft tail cylinder, reduces head drum, coalcutter from end side the first head of main paragraph coal starting point (6) to End side the first tail of main paragraph coal terminal (7) is along perpendicular to coal seam peeling direction straight line coal cutting, while mobile hydraulic support, will scrape The head and fuselage slave head end of plate conveyer successively push coal wall to machine tail end, after coalcutter reaches machine tail end, aircraft tail cylinder Continue coal cutting, until cutting the coal wall near machine tail end, then reduces the ground coal of aircraft tail cylinder cutting mill tail end;
Step S202: raising head drum, at tail 25m to 40m utilize head drum towards head end chamfer feed Coal cutting, until reaching end side the first chamfered section of main paragraph coal end (8);
Step S203: reducing head drum, raises aircraft tail cylinder, and aircraft tail cylinder cuts the coal wall near machine tail end, reaches end side Main paragraph coal the second tail terminal (9) reduces the ground coal of aircraft tail cylinder cutting mill tail end, while mobile hydraulic support, and scraper plate is defeated The tail of machine is sent to push coal wall to;
Step S204: raising head drum, reduces aircraft tail cylinder, and coalcutter drives towards the coal cutting of head end from machine tail end, mobile simultaneously Hydraulic support successively pushes the tail of drag conveyor and fuselage to coal wall from machine tail end to head end, until coalcutter reaches End side the second head of main paragraph coal end (10);
Step S205: raising aircraft tail cylinder, reduces head drum, in apart from head 25m to 40m at using aircraft tail cylinder towards machine Tail end chamfers feed coal cutting, until reaching end side the second chamfered section of main paragraph coal end (11);
Step S206: raising head drum, reduces aircraft tail cylinder, and head drum cuts the coal wall near head end, reaches end side Main paragraph coal third head terminal (12) reduces the ground coal of head drum cutting mill head end, while mobile hydraulic support, and scraper plate is defeated It send the head of machine to push coal wall to, completes a process cycles;
Step S207: repeating step S201 to step S206, until drag conveyor reaches the rotation of end side and is driven out to end.
4. the coal-mining method of open coal mine end side as described in claim 1 coal, which is characterized in that the coalcutter is twin-roll Coalcutter, wherein roller of the coalcutter close to head end is head drum, and coalcutter is aircraft tail cylinder close to the roller of machine tail end, The rotation of end side be driven out to end end coal mining method the following steps are included:
Step S301: raising aircraft tail cylinder, reduces head drum, and coalcutter is driven out to the first head starting point (14) of end from the rotation of end side Xiang Duanbang rotation is driven out to the first tail terminal (15) of end along perpendicular to coal seam peeling direction straight line coal cutting, while movable hydraulic branch Frame successively pushes the head of drag conveyor and fuselage slave head end to coal wall to machine tail end, after coalcutter reaches machine tail end, machine Stern barrel continues coal cutting, until cutting the coal wall near machine tail end, then reduces the ground coal of aircraft tail cylinder cutting mill tail end;
Step S302: raising head drum, and the head that head drum is gradually increased towards head end deviates angular coal wall beveling Feed coal cutting, the head offset distance that trace is gradually increased reach the rotation of end side and are driven out to the first chamfered section end (16) of end, simultaneously Mobile hydraulic support successively pushes the tail of drag conveyor and fuselage to coal wall from machine tail end to head end;
Step S303: reducing head drum, raises aircraft tail cylinder, the head that coalcutter is gradually reduced away from head end is away from angle Feed coal cutting is chamfer to coal wall, the head that trace is gradually increased deviates from the rotation of distance arrival end side and is driven out to the second chamfered section end of end (17), while mobile hydraulic support, successively push the fuselage of drag conveyor and tail slave head end to coal wall to machine tail end;
Step S304: repeating step S302 and step 303, cuts up to coalcutter is driven out to end end tail point (18) from the rotation of end side Coal returns to the rotation of end side and is driven out to the first head starting point (14) of end, while mobile hydraulic support, by the tail and machine of drag conveyor Body successively pushes coal wall to from machine tail end to head end, and the circulation of a closure is completed in the coal cutting path of coalcutter;
Step S305: repeating step S301 to step S304, until the tail rotation of drag conveyor is driven out to the rotation of end side and is driven out to It holds (300).
5. the coal-mining method of open coal mine end side as described in claim 1 coal, which is characterized in that end is driven into end side rotation It is continuous in timing that end coal mining, end side main paragraph coal mining and the rotation of end side, which are driven out to end end coal mining,.
6. the coal-mining method of open coal mine end side as described in claim 1 or 4 coal, which is characterized in that end side rotation is sailed The geometry of outlet (300) is that Plane of rotation is rotated by 90 ° a quarter cylindrical body to be formed, and the end around rotary shaft The rotary shaft that the rotary shaft at end is driven into side rotation and side rotation in the end is driven out to end is located at the ipsilateral of end side main paragraph coal.
7. the coal-mining method of open coal mine end as claimed in claim 2 side coal, which is characterized in that the step S102 is to described Step S106, the head holding are not moved, and the tail surrounds head rotating.
8. the coal-mining method of open coal mine end as claimed in claim 4 side coal, which is characterized in that the step S301 is to described Step S305, the head holding are not moved, and the tail surrounds head rotating.
9. the coal-mining method of open coal mine end side as claimed in claim 2 or 4 coal, which is characterized in that coalcutter is at the end Side rotation drives into end (100) and the end and helps to rotate that be driven out to the coal mining trace path at end (300) be zigzag.
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Families Citing this family (3)

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CN108425674B (en) * 2018-03-27 2019-11-19 中煤科工能源投资有限公司 A kind of coal-mining method of open coal mine end side coal
CN109296369B (en) * 2018-10-12 2020-04-21 太原科技大学 Technology for recycling side coal of open-air continuous excavation working face
CN113420457B (en) * 2021-07-08 2024-03-19 辽宁工程技术大学 End slope stability analysis method for steep slope mining of open pit coal mine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU966235A1 (en) * 1980-02-22 1982-10-15 Gubin Gennadij K Method of winning thin gently-sloping mineral seams
CN1311385A (en) * 2001-02-09 2001-09-05 煤炭科学研究总院太原分院 Self moving apparatus for remote control bridge elevating conveyor
CN101418690A (en) * 2008-11-21 2009-04-29 平朔煤炭工业公司 Flat coal deposit large open pit mine end-slope transport technological process
CN104389606A (en) * 2014-09-23 2015-03-04 海西博奥工程有限公司 Novel mine mining technical scheme based on environment protection
CN104832130A (en) * 2015-04-28 2015-08-12 中国矿业大学 Gasification recovery method for residual coal at end slope of strip mine
CN106958445A (en) * 2015-12-02 2017-07-18 乔伊·姆·特拉华公司 Longwell optimal control

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150853A (en) * 1977-05-18 1979-04-24 Mccoy Charles M Method of strip mining
CN102644464B (en) * 2012-04-12 2014-01-01 东北大学 Constructing method for mining embedded artificial boundary ore pillar from open-pit to underground mine
CN103758568A (en) * 2014-02-14 2014-04-30 中国矿业大学 Opencast coal mine end slope filling mining method
CN104074521B (en) * 2014-06-20 2016-05-04 中国矿业大学 A kind of end is helped coal seam Long-distance Control driving recovery method
CN104790956B (en) * 2015-03-13 2018-08-14 余绍泽 It is remotely controlled roadway formula exploitation end and helps coal technique
CN107313804B (en) * 2017-06-29 2019-05-17 中国矿业大学 A kind of open coal mine end side pressure coal filling fully mechanized mining recovery method
CN108425674B (en) * 2018-03-27 2019-11-19 中煤科工能源投资有限公司 A kind of coal-mining method of open coal mine end side coal

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU966235A1 (en) * 1980-02-22 1982-10-15 Gubin Gennadij K Method of winning thin gently-sloping mineral seams
CN1311385A (en) * 2001-02-09 2001-09-05 煤炭科学研究总院太原分院 Self moving apparatus for remote control bridge elevating conveyor
CN101418690A (en) * 2008-11-21 2009-04-29 平朔煤炭工业公司 Flat coal deposit large open pit mine end-slope transport technological process
CN104389606A (en) * 2014-09-23 2015-03-04 海西博奥工程有限公司 Novel mine mining technical scheme based on environment protection
CN104832130A (en) * 2015-04-28 2015-08-12 中国矿业大学 Gasification recovery method for residual coal at end slope of strip mine
CN106958445A (en) * 2015-12-02 2017-07-18 乔伊·姆·特拉华公司 Longwell optimal control

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