CN110984992A - Continuous coal mining process - Google Patents

Continuous coal mining process Download PDF

Info

Publication number
CN110984992A
CN110984992A CN201911258074.4A CN201911258074A CN110984992A CN 110984992 A CN110984992 A CN 110984992A CN 201911258074 A CN201911258074 A CN 201911258074A CN 110984992 A CN110984992 A CN 110984992A
Authority
CN
China
Prior art keywords
coal
mining
coal seam
seam
distance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201911258074.4A
Other languages
Chinese (zh)
Other versions
CN110984992B (en
Inventor
王东林
张军
张明鹏
丁光辉
郭胜帅
郑茂慧
彭顺长
王际欣
程兆辉
杨勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inner Mongolia Huangtaolegai Coal Co ltd
Original Assignee
Inner Mongolia Huangtaolegai Coal Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inner Mongolia Huangtaolegai Coal Co ltd filed Critical Inner Mongolia Huangtaolegai Coal Co ltd
Priority to CN201911258074.4A priority Critical patent/CN110984992B/en
Publication of CN110984992A publication Critical patent/CN110984992A/en
Application granted granted Critical
Publication of CN110984992B publication Critical patent/CN110984992B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH 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

Abstract

The invention provides a continuous coal mining process, which is based on coal seams with different hardness and coal seams with different humidity, a coal mining machine is adopted for mining, the coal mining machine is used for mining a distance D1 transversely along the horizontal direction of the coal seams, the coal mining machine is used for mining a distance D2 transversely along the horizontal direction of the coal seams at the top end of a second coal seam, and the coal mining machine is used for mining a distance D3 transversely along the horizontal direction of the coal seams at the; mining from top to bottom according to a coal mining curve, wherein the coal mining thickness does not exceed the depth of a transverse coal hole each time, mining downwards after mining the thickness H according to a mining curve L1 of a first coal seam, mining again at the top end of the first coal seam after mining the thickness H according to a mining curve L1 of a second coal seam, mining transversely along the horizontal direction of the coal seam by a distance D1, mining transversely along the horizontal direction of the coal seam at the top end of the second coal seam by a distance D2, mining transversely along the horizontal direction of the coal seam at the top end of a third coal seam by a distance D3, forming the transverse coal holes in each coal seam, and mining the thickness H according to a mining curve L1 of the first coal seam.

Description

Continuous coal mining process
Technical Field
The invention relates to the technical field of coal mining, in particular to a continuous coal mining process.
Background
The development process of the open-pit mining process in China mainly takes bucket excavation-railway transportation process as the main process from the initial stage of the country construction, changes to bucket excavation-automobile transportation process as the main process since the 20 th century and 80 th year development, and has the characteristics of coexistence of various main processes of open-pit mining at present, semi-continuous mining process, comprehensive mining process, dragline reverse stacking process and the like. The development of the open-pit mining process system depends on the improvement degree of the manufacturing capacity of mining equipment, the annual production capacity of open-pit coal mining in China in the past accounts for a small proportion of national coal production capacity, the manufacturing capacity of open-pit coal mining equipment cannot keep up with that of the national coal production capacity, and foreign equipment accounts for most of the share.
In the prior art, coal mining continuous processes are usually used for mining coal seams with single coal seams and single gradient, but the coal mining continuous processes for mining coal seams with multiple coal seams and multiple gradients cannot realize continuity.
Disclosure of Invention
The invention aims to provide a continuous coal mining process to solve the technical problem.
In order to achieve the above object, in one aspect, the present invention provides a continuous coal mining process, based on coal seams with different hardness and coal seams with different humidity, mining by a coal mining machine, arranging a belt conveyor from top to bottom along a gradient of the coal seam, and conveying coal mined by the coal mining machine downwards by the belt conveyor;
the coal seam is divided into a first coal seam, a second coal seam, a third coal seam and a fourth coal seam, the hardness and the humidity of each layer are different, the hardness C from top to bottom is gradually increased, and the humidity M is gradually increased;
mining at the top end of a first coal seam by a horizontal mining distance D1 along the coal seam, mining at the top end of a second coal seam by a horizontal mining distance D2 along the coal seam, and mining at the top end of a third coal seam by a horizontal mining distance D3 along the coal seam; and mining from top to bottom according to a coal mining curve, wherein the coal mining thickness does not exceed the depth of the transverse coal hole every time, mining downwards after mining the thickness H according to a mining curve L1 of a first coal seam, mining the thickness H according to a mining curve L1 of a second coal seam, mining again at the top end of the first coal seam, mining transversely along the horizontal direction of the coal seam for the distance D1, mining transversely along the horizontal direction of the coal seam for the distance D2 at the top end of the second coal seam, mining transversely along the horizontal direction of the coal seam for the distance D3 at the top end of a third coal seam, forming the transverse coal holes in each coal seam, mining downwards after mining the thickness H according to a mining curve L1 of the first coal seam, mining the thickness H according to a mining curve L1 of the second coal seam, and repeating the.
Further, the mining distance of the first coal seam D1< the mining distance of the second coal seam D2< the mining distance of the third coal seam D3.
Further, after the top mining of each coal seam is completed, a row of transverse coal holes and four rows of transverse coal holes are drilled on the mining surface of each coal seam by a drilling machine, wherein the distance between the transverse coal hole in the first coal seam at the lowest side and the edge of the upper side of the first coal seam is h1, the distance between the transverse coal hole in the second coal seam at the upper side of the first coal seam and the edge of the upper side of the second coal seam is h2, the distance between the transverse coal hole in the third coal seam at the upper side of the second coal seam and the edge of the upper side of the third coal seam is h3, and the distance between the transverse coal hole in the fourth coal seam at the upper side of the third coal seam and the edge of the upper side of the fourth coal seam is h 4.
Further, the distance relationship between the coal seams is h1> h2> h3> h 4.
Further, on the cross section of same coal seam, each coal seam is the arc in horizontal coal hole and arranges, wherein, first coal hole, second coal hole, third coal hole, the fourth coal hole that sets up in the third coal seam are same pitch arc and arrange, and the center O of pitch arc is the central extension line of the horizontal cross-section of fourth coal seam, and the distance of pitch arc center O apart from the bottom surface of fourth coal seam is the height of four coal seam vertical directions.
Further, during mining, the surface layer of the first coal seam is mined according to a preset coal mining curve, wherein the mining curve L1 of the first coal seam is as follows:
L1=D1+h1×sin a+h1×cos a
d1 represents the lateral mining distance along the horizontal direction of the first coal seam, h1 represents the distance between the lateral coal holes of the first coal seam and the upper side edge, and a represents the mining angle, which is the angle between the belt conveyor 3 on the first coal seam and the horizontal plane when the belt conveyor is initially set.
Further, the mining curves L2 of the second coal seam and the third coal seam are:
L2=D3+(h2+h3)×sin b+(h2+h3)×cos b
in the formula, D3 represents the horizontal mining distance along the third coal seam, h2 represents the distance between the lateral coal holes of the second coal seam and the upper side edge, h3 represents the distance between the lateral coal holes of the third coal seam and the upper side edge, and b represents the mining angle which is the angle between the belt conveyor on the third coal seam and the horizontal plane when the belt conveyor is initially arranged.
Further, a reference hardness C0 and a reference humidity M0 are set, and the preset distances h are set between the transverse coal holes and the upper edge of the coal bed respectively10、h20、h30、h40Wherein, in the step (A),
the distance h1 between the transverse coal holes of the first coal seam and the upper side edge is as follows:
h10initially set to 20 m.
Further, the distance h2 between the transverse coal holes of the second coal seam and the upper side edge is as follows:
in the formula, the vertical height h of the transverse coal holes of each coal bed is properly reduced along with the reduction of the hardness and the humidity20Initially set at 27.4 m.
Further, the distance h3 between the transverse coal holes of the third coal seam and the upper side edge is as follows:
in the formula, h30Initially set to 33 m.
Compared with the prior art, the continuous coal mining process has the advantages that the top end of the first coal seam is mined for a distance D1 transversely along the horizontal direction of the coal seam, the top end of the second coal seam is mined for a distance D2 transversely along the horizontal direction of the coal seam, the top end of the third coal seam is mined for a distance D3 transversely along the horizontal direction of the coal seam, transverse coal holes are formed in each coal seam, then the coal is mined for a thickness H according to a mining curve L1 of the first coal seam, the coal is mined downwards, and the mining process is repeated according to a mining curve L1 of the second coal seam. D1< D2< D3, the larger the area with the higher the hardness of the coal seam, the larger the reserved space for pre-mining.
Particularly, the coal holes are arranged, so that on one hand, the hardness and the humidity corresponding to each coal bed can be detected in real time, and the mining process of the coal bed information is adjusted; on the other hand, as the horizontal lines of the coal seams in fig. 1 indicate the horizontal coal holes, the coal mining machine is perforated in advance, so that the cutting difficulty of the coal mining machine is reduced and the coal mining process is ensured to be continuously carried out in a perforation mode in the top-down mining process.
In particular, during mining, mining is carried out from top to bottom according to the curve shape, the mining thickness does not exceed the depth of the transverse coal hole every time, mining is carried out downwards after mining is carried out for the thickness H according to the mining curve L1 of the first coal seam, mining is carried out again at the top end of the first coal seam after mining is carried out for the thickness H according to the mining curve L1 of the second coal seam, mining is carried out transversely along the horizontal direction of the coal seam for the distance D1, mining is carried out transversely along the horizontal direction of the coal seam for the distance D2 at the top end of the second coal seam, mining is carried out transversely along the horizontal direction of the coal seam for the distance D3 at the top end of the third coal seam, transverse coal holes are formed in each coal seam, mining is carried out downwards after mining is carried out for the thickness H according to the mining curve.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic structural diagram of continuous coal mining according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a coal seam for continuous coal mining according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a continuous miner according to an embodiment of the invention.
Detailed Description
Preferred embodiments of the invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the invention, and do not limit the scope of the invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 is a schematic structural diagram of continuous coal mining according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a coal seam of continuous coal mining according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of a continuous miner according to an embodiment of the invention. According to the embodiment of the invention, different mining modes are set based on coal seams with different hardness and coal seams with different humidity, the coal mining machine 1 is adopted for mining, the belt conveyor 3 from top to bottom is arranged along the gradient of the coal seams, the belt conveyor 3 is used for conveying the coal mined by the coal mining machine downwards, and the transfer conveyor 2 is also arranged for transferring the coal.
Referring to fig. 3, the continuous miner of this embodiment includes: crawler-belt running gear 11, rotation mechanism 12, rocking arm cutting device 13 and connect cutting drum, electrical system 15, hydraulic cooling system 14, driver's cabin 16 on it to and scraper conveyor 18, crawler-belt running gear 11 connect scraper conveyor 18 through rotation mechanism 12, be provided with driver's cabin 16, rocking arm cutting device 13 and connect the cylinder on it, electrical system 15, hydraulic cooling system 14 in the upper portion still be provided with control system 19 in the driver's cabin.
Specifically, during operation, the crawler belt 11 is driven to a predetermined position, the pair of rocker arm cutting devices 13 and the cutting drums connected thereto are not cut, and the coal is received and conveyed by the scraper conveyor 18 to the belt conveyor 16 and finally conveyed to the external coal bunker via the belt conveyor 16. The coal mining machine is one of common coal mining machines, which is not described in detail, and the technicians in the field can adopt other types and models of coal mining machines.
Referring to fig. 1, in the coal seam mining process according to the embodiment of the present invention, coal seams with different hardness are mined in sequence, the coal seam mining process is divided into a first coal seam 91, a second coal seam 92, a third coal seam 93 and a fourth coal seam 94, hardness and humidity of each coal seam are different, and in the four coal seams of the present embodiment, hardness C gradually increases from top to bottom, and humidity M gradually increases. During mining, firstly, the first coal seam 91 is mined at the top end, the transverse mining distance D1 is along the horizontal direction of the coal seam, the second coal seam 92 is mined at the top end along the horizontal direction of the coal seam by the transverse mining distance D2, the third coal seam 93 is mined at the top end along the horizontal direction of the coal seam by the transverse mining distance D3, and a certain space can be reserved for coal mining operation by mining preset distances D1, D2 and D3 at the top ends of the coal seams. In the embodiment, D1< D2< D3 indicates that the larger the hardness of the coal seam, the larger the reserved space for pre-mining.
Specifically, referring to fig. 2, after the top end of each coal seam is mined, a row of transverse coal holes are drilled in the mining surface of each coal seam by a drilling machine so as to measure the hardness and the moisture of the coal seam through the coal holes. In the present embodiment, the distance between the lateral coal hole in the first coal seam 91 at the lowest side and the upper side edge of the first coal seam is h1, the distance between the lateral coal hole in the second coal seam 92 at the upper side of the first coal seam 91 and the upper side edge of the second coal seam is h2, the distance between the lateral coal hole in the third coal seam 93 at the upper side of the second coal seam 92 and the upper side edge of the third coal seam is h3, and the distance between the lateral coal hole in the fourth coal seam 94 at the upper side of the third coal seam 93 and the upper side edge of the fourth coal seam is h 4. In the embodiment, the distance relationship between coal seams is h1> h2> h3> h 4.
Specifically, the coal holes are arranged, so that on one hand, the hardness and the humidity corresponding to each coal bed can be detected in real time, and the mining process of the coal bed information can be adjusted; on the other hand, as the horizontal lines of the coal seams in fig. 1 indicate the horizontal coal holes, the coal mining machine is perforated in advance, so that the cutting difficulty of the coal mining machine is reduced and the coal mining process is ensured to be continuously carried out in a perforation mode in the top-down mining process.
Specifically, in the present embodiment, the reference hardness C0 and the reference humidity M0 are set, and the predetermined distances h are set between the lateral coal holes and the upper edge of the coal seam10、h20、h30、h40. Wherein the content of the first and second substances,
the distance h1 between the transverse coal holes of the first coal seam and the upper side edge is as follows:
in the embodiment, the position of the transverse coal hole is determined by considering the reference hardness and the humidity, and the height of the transverse coal hole from the edge of the coal bed is reduced when the hardness is higher and the humidity is higher, so that the cutting difficulty of the coal mining machine is reduced. In the present embodiment, h10Initially set to 20 m.
The distance h2 between the transverse coal holes of the second coal seam and the upper side edge is as follows:
in the formula, the vertical height h of the transverse coal holes of each coal bed is properly reduced along with the reduction of the hardness and the humidity20Initially set at 27.4 m.
The distance h3 between the transverse coal holes of the third coal seam and the upper side edge is as follows:
in the formula, h30The initial setting was 33m with the result that,
the distance h4 between the transverse coal holes of the fourth coal seam and the upper side edge is as follows:
in the formula, h40The initial setting was made to be 43m,
the reference hardness C0 was set to 600Mg/cm3The reference humidity value M0 was 23450 cp.
With reference to fig. 2, in the coal seam plane of the embodiment of the present invention, on the cross section of the same coal seam, that is, the coal seam plane shown in fig. 1 from the left side, the horizontal coal holes of each coal seam in the horizontal direction are arranged in an arc shape, for example, the first coal hole 931, the second coal hole 932, the third coal hole 933, and the fourth coal hole 934 provided in the third coal seam in this embodiment are arranged in the same arc line, the center O of the arc line is a central extension line of the horizontal cross section of the fourth coal seam, and the distance from the center O of the arc line to the bottom surface of the fourth coal seam is the height of the four coal seams in the vertical direction, so the horizontal coal hole in each coal seam can be determined according to the arc setting mode.
Specifically, when the coal is actually mined, the transverse coal holes for mining the coal bed are determined, and when the coal is mined, the surface layer of the first coal bed is mined according to a preset coal mining curve, so that the continuous optimal coal mining construction and coal transportation process is achieved.
The mining curve L1 of the first coal seam is as follows:
L1=D1+h1×sin a+h1×cos a
d1 represents the lateral mining distance along the horizontal direction of the first coal seam, h1 represents the distance between the lateral coal holes of the first coal seam and the upper side edge, and a represents the mining angle, which is the angle between the belt conveyor 3 on the first coal seam and the horizontal plane when the belt conveyor is initially set.
The mining curves L2 of the second coal seam and the third coal seam are as follows:
L2=D3+(h2+h3)×sin b+(h2+h3)×cos b
d3 represents the lateral mining distance along the horizontal direction of the third seam, h2 represents the distance of the lateral coal holes of the second seam from the upper edge, h3 represents the distance of the lateral coal holes of the third seam from the upper edge, and b represents the mining angle, which is the angle between the belt conveyor on the third seam and the horizontal plane when initially set.
Specifically, in the mining process, mining is performed from top to bottom according to the curved shape, as shown in fig. 1, mining is performed from top to bottom according to a coal mining curve, each time the coal mining thickness does not exceed the depth of a transverse coal hole, mining is performed downwards after mining the thickness H according to a mining curve L1 of a first coal seam, mining is performed again at the top end of the first coal seam 91 after mining the thickness H according to a mining curve L1 of a second coal seam, mining is performed again at the top end of the first coal seam 91 by the transverse mining distance D1 in the horizontal direction of the coal seam, mining is performed downwards after mining the thickness H is performed according to a mining curve L1 of the first coal seam at the top end of the second coal seam 92 by the transverse mining distance D3 in the horizontal direction of the coal seam, and the mining process is repeated after mining is performed by the thickness H according to a mining curve L1 of the second coal seam.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A continuous coal mining process, comprising: mining by adopting a coal mining machine based on coal beds with different hardness and coal beds with different humidity, and arranging a belt conveyor from top to bottom along the gradient of the coal bed, wherein the belt conveyor conveys the coal mined by the coal mining machine downwards;
the coal seam is divided into a first coal seam, a second coal seam, a third coal seam and a fourth coal seam, the hardness and the humidity of each layer are different, the hardness C from top to bottom is gradually increased, and the humidity M is gradually increased;
mining at the top end of a first coal seam by a horizontal mining distance D1 along the coal seam, mining at the top end of a second coal seam by a horizontal mining distance D2 along the coal seam, and mining at the top end of a third coal seam by a horizontal mining distance D3 along the coal seam; and mining from top to bottom according to a coal mining curve, wherein the coal mining thickness does not exceed the depth of the transverse coal hole every time, mining downwards after mining the thickness H according to a mining curve L1 of a first coal seam, mining the thickness H according to a mining curve L1 of a second coal seam, mining again at the top end of the first coal seam, mining transversely along the horizontal direction of the coal seam for the distance D1, mining transversely along the horizontal direction of the coal seam for the distance D2 at the top end of the second coal seam, mining transversely along the horizontal direction of the coal seam for the distance D3 at the top end of a third coal seam, forming the transverse coal holes in each coal seam, mining downwards after mining the thickness H according to a mining curve L1 of the first coal seam, mining the thickness H according to a mining curve L1 of the second coal seam, and repeating the.
2. The continuous coal mining process of claim 1, wherein the first coal seam has a mining distance D1< the second coal seam has a mining distance D2< the third coal seam has a mining distance D3.
3. The continuous coal mining process according to claim 1, wherein after the top mining of each coal seam is completed, a row of transverse coal holes are drilled in the mining surface of each coal seam by a drilling machine, and the transverse coal holes in the first coal seam on the lowest side are separated from the upper side edge of the first coal seam by h1, the transverse coal holes in the second coal seam on the upper side of the first coal seam are separated from the upper side edge of the second coal seam by h2, the transverse coal holes in the third coal seam on the upper side of the second coal seam are separated from the upper side edge of the third coal seam by h3, and the transverse coal holes in the fourth coal seam on the upper side of the third coal seam are separated from the upper side edge of the fourth coal seam by h 4.
4. The continuous coal mining process of claim 3, wherein the distance relationship between individual coal seams is h1> h2> h3> h 4.
5. The continuous coal mining process according to claim 3, wherein the transverse coal holes of each coal seam in the transverse direction are arranged in an arc shape on the cross section of the same coal seam, wherein the first coal hole, the second coal hole, the third coal hole and the fourth coal hole arranged in the third coal seam are arranged in the same arc line, the center O of the arc line is a central extension line of the transverse cross section of the fourth coal seam, and the distance from the center O of the arc line to the bottom surface of the fourth coal seam is the height of the four coal seams in the vertical direction.
6. The continuous coal mining process of claim 3, wherein, during mining, the surface layer of the first coal seam is mined according to a preset coal mining curve,
the mining curve L1 of the first coal seam is as follows:
L1=D1+h1×sina+h1×cosa
d1 represents the lateral mining distance along the horizontal direction of the first coal seam, h1 represents the distance between the lateral coal holes of the first coal seam and the upper side edge, and a represents the mining angle, which is the angle between the belt conveyor on the first coal seam and the horizontal plane when the belt conveyor is initially set.
7. The continuous coal mining process of claim 6, wherein the second and third coal seams have mining curves L2 of:
L2=D3+(h2+h3)×sinb+(h2+h3)×cosb
in the formula, D3 represents the horizontal mining distance along the third coal seam, h2 represents the distance between the lateral coal holes of the second coal seam and the upper side edge, h3 represents the distance between the lateral coal holes of the third coal seam and the upper side edge, and b represents the mining angle which is the angle between the belt conveyor on the third coal seam and the horizontal plane when the belt conveyor is initially arranged.
8. The continuous coal mining process according to claim 6, wherein a reference hardness C0 and a reference humidity M0 are set, and the preset distances h between the transverse coal holes and the upper edge of the coal seam are set10、h20、h30、h40Wherein, in the step (A),
the distance h1 between the transverse coal holes of the first coal seam and the upper side edge is as follows:
h10initially set to 20 m.
9. The continuous coal mining process of claim 8, wherein the distance h2 between the lateral coal holes and the upper side edge of the second coal seam is:
in the formula, the vertical height h of the transverse coal holes of each coal bed is properly reduced along with the reduction of the hardness and the humidity20Initially set at 27.4 m.
10. The continuous coal mining process of claim 9, wherein the distance h3 between the lateral coal holes and the upper side edge of the third coal seam is:
in the formula, h30Initially set to 33 m.
CN201911258074.4A 2019-12-10 2019-12-10 Continuous coal mining process Active CN110984992B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911258074.4A CN110984992B (en) 2019-12-10 2019-12-10 Continuous coal mining process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911258074.4A CN110984992B (en) 2019-12-10 2019-12-10 Continuous coal mining process

Publications (2)

Publication Number Publication Date
CN110984992A true CN110984992A (en) 2020-04-10
CN110984992B CN110984992B (en) 2021-04-20

Family

ID=70091721

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911258074.4A Active CN110984992B (en) 2019-12-10 2019-12-10 Continuous coal mining process

Country Status (1)

Country Link
CN (1) CN110984992B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101899976A (en) * 2010-07-15 2010-12-01 煤炭科学研究总院太原研究院 Continuous coal mining process method of open-pit coal mine
CN102140916A (en) * 2010-12-15 2011-08-03 河北天择重型机械有限公司 Process and apparatus for mining open pit
CN104314570A (en) * 2014-09-30 2015-01-28 河北联合大学 Mining method for recycling long-thick ore body hanging wall ore and transforming strip mine to underground mine
CN104612693A (en) * 2014-12-13 2015-05-13 中国煤炭科工集团太原研究院有限公司 Continuous coal-mining technology for strip mine
CN104806248A (en) * 2015-04-23 2015-07-29 安徽马钢工程技术集团有限公司 Slice mining method for small-scale opencast quarry
CN107313804A (en) * 2017-06-29 2017-11-03 中国矿业大学 A kind of open coal mine end side pressure coal filling fully mechanized mining recovery method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101899976A (en) * 2010-07-15 2010-12-01 煤炭科学研究总院太原研究院 Continuous coal mining process method of open-pit coal mine
CN102140916A (en) * 2010-12-15 2011-08-03 河北天择重型机械有限公司 Process and apparatus for mining open pit
CN104314570A (en) * 2014-09-30 2015-01-28 河北联合大学 Mining method for recycling long-thick ore body hanging wall ore and transforming strip mine to underground mine
CN104612693A (en) * 2014-12-13 2015-05-13 中国煤炭科工集团太原研究院有限公司 Continuous coal-mining technology for strip mine
CN104806248A (en) * 2015-04-23 2015-07-29 安徽马钢工程技术集团有限公司 Slice mining method for small-scale opencast quarry
CN107313804A (en) * 2017-06-29 2017-11-03 中国矿业大学 A kind of open coal mine end side pressure coal filling fully mechanized mining recovery method

Also Published As

Publication number Publication date
CN110984992B (en) 2021-04-20

Similar Documents

Publication Publication Date Title
CN106121648B (en) A kind of sublevel open stoping mining chassis route ore drawing afterwards filling mining method
CN1961134B (en) Mining apparatus with precision navigation system
CN105728784B (en) A kind of automatic counterbore machine of key tooth flower
CN100575664C (en) The open coal mine step type raftings transmission path in putting up a bridge and connecting
CN110984992B (en) Continuous coal mining process
CN102105373A (en) Conveyor pan with changeable trough, and a changeable trough
CN102213092A (en) Coal mining machine for coal wall mining
CN107989617A (en) A kind of strip mining transformation method of gently inclined orebody
CN101606008B (en) Sprocket for chain drives and scraper chain conveyer
CN108825237A (en) A kind of special thick coal continuous milling machine divides excavating technology with the layering combined is filled
CN201460892U (en) Shoring and conveying integrated low seam fully mechanized mining equipment
CN103314772B (en) Full-automatic perforating machine for fungus cultivation bag
CN102373927A (en) Slice mining technology and coal winning machine thereof
CN107227957A (en) A kind of slight slope and thin ore body compartment Dry-placed fill method
CN202031588U (en) Coal mining machine for long-wall working face
CN204371343U (en) A kind of opencut caterpillar track travelling double-ended shearer
JP2016084224A (en) Belt conveyer carrier device
US6474745B2 (en) Method of mining
CN205616168U (en) Trigger is chosen to pencil board
CN205422716U (en) Cut -and -fill mining method mosaic
CN205695310U (en) Dough sheet separating mechanism, dough sheet turn to conveying arrangement and dough sheet cutting apparatus
CN102225716B (en) Scraper conveyor and middle trough baffle connecting device thereof
CN110733835A (en) Scraper conveyor for coal mine
CN2439788Y (en) Guide-plate type tobacco-stem straightening-out machine
CN203568347U (en) Forged pin rail for scraper conveyer

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant