CN109403977A - The method of well work mechanization high-efficiency mining oil shale - Google Patents
The method of well work mechanization high-efficiency mining oil shale Download PDFInfo
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- CN109403977A CN109403977A CN201811079587.4A CN201811079587A CN109403977A CN 109403977 A CN109403977 A CN 109403977A CN 201811079587 A CN201811079587 A CN 201811079587A CN 109403977 A CN109403977 A CN 109403977A
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- coal
- bulk
- coalcutter
- scratch board
- machine
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- 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.)
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- 239000004058 oil shale Substances 0.000 title claims abstract description 20
- 238000005065 mining Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003245 coal Substances 0.000 claims abstract description 59
- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 238000010276 construction Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 3
- 238000001802 infusion Methods 0.000 claims description 3
- 231100000241 scar Toxicity 0.000 claims description 3
- 238000004513 sizing Methods 0.000 claims description 3
- 238000007726 management method Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 101100510615 Caenorhabditis elegans lag-2 gene Proteins 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 235000007926 Craterellus fallax Nutrition 0.000 description 1
- 240000007175 Datura inoxia Species 0.000 description 1
- 241000264877 Hippospongia communis Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/68—Machines for making slits combined with equipment for removing, e.g. by loading, material won by other means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/10—Machines which completely free the mineral from the seam by both slitting and breaking-down
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details 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
- E21C35/04—Safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Remote Sensing (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The present invention relates to the method for well work mechanization high-efficiency mining oil shale, (1) face timbering quality managements；(2) the one-way coal cutting technique that downlink coal cutting uplink sky machine returns.The present invention improves the Homes Using TV of working face, it is ensured that the safe and efficient production of working face.
Description
Technical field
The present invention relates to the methods of well work mechanization high-efficiency mining oil shale.
Background technique
Mine of Longkou Mining Area oil shale resources are compared with horn of plenty, and oil content is high, but working face geology condition is complex, by mined out
Area, old working, tomography etc. influence coal wall cranny development and enrich, and stability is poor, and coal wall bulk slabbing is more in exploitation process, greatly
Block product is larger, causes to slip head unloading difficulty, production efficiency is low.
Oil shale face uses medium-thickness seam full-seam mining, moves towards longwell retrusive whole caving method.Using
MGTY400/930-1.1D double-ended shearer coal cutting, front roll cut top coal, and back roll cuts ground coal, mining height 4m, cutting depth
For 0.6m.According to the oily 2 working face extraction experiences of coal 1, coalcutter is from scratch board conveyor head to scratch board conveyor tail (coalcutter
Uplink) during coal cutting, the bulk formed during broken coal cannot be by crossing coal channel, and coalcutter uplink and scraper plate are transported in addition
Defeated machine-made egg-shaped or honey-comb coal briquets stream is contrary, and one side bulk blocked that coal channel coal piling is more and more, and another aspect bulk not card scraper plate causes
Scratch board conveyor load causes greatly equipment damage.The drawbacks of coalcutter uplink coal cutting, can not overcome under existence conditions.
Summary of the invention
To overcome the shortcomings of existing technologies, the present invention provides a kind of method of well work mechanization high-efficiency mining oil shale, this
The technical solution of invention is:
(1) face timbering quality management: force piece setting load must reach 24MPa or more, and bracket support state reaches
Quality standardization requirement guarantees bracket front column and the requirement of top beam setting load, work to the carry out fluid infusion that setting load does not reach requirement
Make face and strictly carries out back production by regulation mining height and layer position；
(2) coalcutter downlink coal cutting, after scratch board conveyor head is cut, by the upper and lower position tune of two rollers of coalcutter or so
It changes, returns machine to scratch board conveyor tail direction sky machine, coal wall float coal is peace and quiet, and force piece all pulls together, drag conveyor
In straight knife state；
(3) drag conveyor is started to release at away from scratch board conveyor tail 35m, makes scratch board conveyor bending section 18m, it is curved
Tune is all released to scratch board conveyor tail；
(4) coalcutter makes roller beveling enter coal wall to the traction of scratch board conveyor tail direction, is cut and is scraped by the bending section of 18m
Plate transporter tail coal wall from top to bottom all releases drag conveyor so that coalcutter reaches normal cutting depth 0.6m,
In straight knife state；
(5) upper and lower position of two rollers of coalcutter or so is exchanged, leads the normal coal cutting of machine to scratch board conveyor heading, chases after
Machine moves frame operation, starts next circulation feed；
(6) bulk manually abolishes construction: coal mining crusher machine is used in shale bulk a part that oil shale face production process generates,
Some shale bulk needs to be crushed using manual type, increases work face pressure wind connector quantity, makes pneumatic pick
Entire working face can be covered with range, aspect bulk is abolished, and according to the generating region of working face bulk, is slipping head, coalcutter
Bottom roll and upper roller respectively arrange one group to carry out bulk with machine and abolish construction, while scratch board conveyor head concentration is abolished,
Implementation abolishes construction to the comprehensive spreadability bulk for slipping head from slipping tail to coalcutter in advance；
(7) after oil shale have passed through mechanical, hand breaking in process of production, still there is the shale of the larger lumpiness in part, in oily page
Coal Sizing Crusher 2PLF120/150 is installed, working face oil shale is broken with classification by coal at scar transportation roadway belt conveyer head
It is broken that broken machine carries out last time, it is ensured that safe and efficient production.
Itself longitudinal cranny development in oil shale face simultaneously is influenced to be the visitor for causing bulk by 2 gob collapse of coal and old working
See reason.It is analyzed from supporting quality management first, the reduction of force piece supporting quality, which causes to connect, pushes up not firm, coal wall caving model
Enclose the generation for expanding and having aggravated bulk.First is that improving force piece supporting quality to the understanding of Roof Control importance, improve
Bracket support quality can reduce roof delamination, enhance top plate self-strength, increase the stability of top plate；Bracket is improved to machine road
The enabling capabilities of top plate reduce face roof end face degree of fragmentation, mitigate coal wall caving；On compacting top plate and pedestal floats downward cash,
Improve support system rigidity；The specified enabling capabilities of bracket are made full use of, roof and floor is reduced with respect to the amount of shifting near, reduces to former before coal wall
The destruction again in raw crack, to reduce the generation of bulk.Specific operation requires:
(1) force piece setting load must reach prescribed requirement (reference frame pressure gauge numerical value is 24MPa or more), bracket branch
The requirement of shield reaching quality standards of state.
(2) bracket is newly moved in production process to working face and carries out setting load inspection, is mended to what setting load did not reached requirement
Liquid guarantees bracket front column and the requirement of top beam setting load.
(3) the maintenance management of force piece is reinforced, and the blowby liquid occurred to bracket will be handled in time from failures such as drops, respectively
Safety valve must reach yield load requirement.
(4) working face strictly carries out back production by regulation mining height and layer position, when coalcutter coal cutting, receives wall supporting personnel in front roll
Advanced 1~2 frame of preceding standard receives wall supporting, prevents wall caving.When wall caving occurs, to draw advanced frame to stretch out extensible canopy in time, accomplish fluently shield
Side board safeguards top plate, prevents that sky top area is excessive, causes to leak useful event.
(5) working face wants strict implement to chase after machine and moves frame system, safeguards top plate in time.After unit front roll is cut, stretch out in time
Extensible canopy, back roll accomplish fluently face guard later in time, prevent coal wall caving.
(6) working face lag 2~3 frame of coalcutter starts to chase after machine and moves frame, accomplishes fluently face guard in time after moving frame, it is desirable that end face away from
≤340mm。
(7) bracket will arrange in a line, and deviation must not exceed ± 50mm, and deviation of centre distance is no more than ± 100mm.
(8) bracket wants vertical roof and floor, crooked < ± 5 °；Set cap is parallel with top plate to be installed, and 7 ° of maximum elevation <.
(9) obvious mismatch cannot be had between adjacent stent, and bracket is not squeezed and do not stung, and gap is no more than 200mm between frame.
The invention has the benefit that the one-way coal cutting technique that downlink coal cutting uplink sky machine returns substantially alleviates coal mining
The coal piling situation formed when uplink coal cutting, the bulk that do not abolish when uplink sky machine returns, when can be by downlink carry out secondary broken
It is broken, improve the Homes Using TV of working face, it is ensured that the safe and efficient production of working face.
Specific embodiment
The invention will now be further described with reference to specific embodiments, the advantages and features of the present invention will be with description and
It is apparent.But examples are merely exemplary for these, and it is not intended to limit the scope of the present invention in any way.Those skilled in the art
Member it should be understood that without departing from the spirit and scope of the invention can details to technical solution of the present invention and form into
Row modifications or substitutions, but these modifications and replacement are fallen within the protection scope of the present invention.
The present invention relates to a kind of methods of well work mechanization high-efficiency mining oil shale:
(1) face timbering quality management: force piece setting load must reach 24MPa or more, and bracket support state reaches
Quality standardization requirement guarantees bracket front column and the requirement of top beam setting load, work to the carry out fluid infusion that setting load does not reach requirement
Make face and strictly carries out back production by regulation mining height and layer position；
(2) coalcutter downlink coal cutting, after scratch board conveyor head is cut, by the upper and lower position tune of two rollers of coalcutter or so
It changes, returns machine to scratch board conveyor tail direction sky machine, coal wall float coal is peace and quiet, and force piece all pulls together, drag conveyor
In straight knife state；
(3) drag conveyor is started to release at away from scratch board conveyor tail 35m, makes scratch board conveyor bending section 18m, it is curved
Tune is all released to scratch board conveyor tail；
(4) coalcutter makes roller beveling enter coal wall to the traction of scratch board conveyor tail direction, is cut and is scraped by the bending section of 18m
Plate transporter tail coal wall from top to bottom all releases drag conveyor so that coalcutter reaches normal cutting depth 0.6m,
In straight knife state；
(5) upper and lower position of two rollers of coalcutter or so is exchanged, leads the normal coal cutting of machine to scratch board conveyor heading, chases after
Machine moves frame operation, starts next circulation feed；
(6) bulk manually abolishes construction: coal mining crusher machine is used in shale bulk a part that oil shale face production process generates,
Some shale bulk needs to be crushed using manual type, increases work face pressure wind connector quantity, makes pneumatic pick
Entire working face can be covered with range, aspect bulk is abolished, and according to the generating region of working face bulk, is slipping head, coalcutter
Bottom roll and upper roller respectively arrange one group to carry out bulk with machine and abolish construction, while scratch board conveyor head concentration is abolished,
Implementation abolishes construction to the comprehensive spreadability bulk for slipping head from slipping tail to coalcutter in advance；
(7) after oil shale have passed through mechanical, hand breaking in process of production, still there is the shale of the larger lumpiness in part, in oily page
Coal Sizing Crusher 2PLF120/150 is installed, working face oil shale is broken with classification by coal at scar transportation roadway belt conveyer head
It is broken that broken machine carries out last time, it is ensured that safe and efficient production.
Itself longitudinal cranny development in oil shale face simultaneously is influenced to be the visitor for causing bulk by 2 gob collapse of coal and old working
See reason.It is analyzed from supporting quality management first, the reduction of force piece supporting quality, which causes to connect, pushes up not firm, coal wall caving model
Enclose the generation for expanding and having aggravated bulk.First is that improving force piece supporting quality to the understanding of Roof Control importance, improve
Bracket support quality can reduce roof delamination, enhance top plate self-strength, increase the stability of top plate；Bracket is improved to machine road
The enabling capabilities of top plate reduce face roof end face degree of fragmentation, mitigate coal wall caving；On compacting top plate and pedestal floats downward cash,
Improve support system rigidity；The specified enabling capabilities of bracket are made full use of, roof and floor is reduced with respect to the amount of shifting near, reduces to former before coal wall
The destruction again in raw crack, to reduce the generation of bulk.Specific operation requires:
(1) force piece setting load must reach prescribed requirement (reference frame pressure gauge numerical value is 24MPa or more), bracket branch
The requirement of shield reaching quality standards of state.
(2) bracket is newly moved in production process to working face and carries out setting load inspection, is mended to what setting load did not reached requirement
Liquid guarantees bracket front column and the requirement of top beam setting load.
(3) the maintenance management of force piece is reinforced, and the blowby liquid occurred to bracket will be handled in time from failures such as drops, respectively
Safety valve must reach yield load requirement.
(4) working face strictly carries out back production by regulation mining height and layer position, when coalcutter coal cutting, receives wall supporting personnel in front roll
Advanced 1~2 frame of preceding standard receives wall supporting, prevents wall caving.When wall caving occurs, to draw advanced frame to stretch out extensible canopy in time, accomplish fluently shield
Side board safeguards top plate, prevents that sky top area is excessive, causes to leak useful event.
(5) working face wants strict implement to chase after machine and moves frame system, safeguards top plate in time.After unit front roll is cut, stretch out in time
Extensible canopy, back roll accomplish fluently face guard later in time, prevent coal wall caving.
(6) working face lag 2~3 frame of coalcutter starts to chase after machine and moves frame, accomplishes fluently face guard in time after moving frame, it is desirable that end face away from
≤340mm。
(7) bracket will arrange in a line, and deviation must not exceed ± 50mm, and deviation of centre distance is no more than ± 100mm.
(8) bracket wants vertical roof and floor, crooked < ± 5 °；Set cap is parallel with top plate to be installed, and 7 ° of maximum elevation <.
(9) obvious mismatch cannot be had between adjacent stent, and bracket is not squeezed and do not stung, and gap is no more than 200mm between frame.
Claims (1)
1. the method for well work mechanization high-efficiency mining oil shale, it is characterised in that:
(1) face timbering quality management: force piece setting load must reach 24MPa or more, and bracket support state reaches
Quality standardization requirement guarantees bracket front column and the requirement of top beam setting load, work to the carry out fluid infusion that setting load does not reach requirement
Make face and strictly carries out back production by regulation mining height and layer position；
(2) coalcutter downlink coal cutting, after scratch board conveyor head is cut, by the upper and lower position tune of two rollers of coalcutter or so
It changes, returns machine to scratch board conveyor tail direction sky machine, coal wall float coal is peace and quiet, and force piece all pulls together, drag conveyor
In straight knife state；
(3) drag conveyor is started to release at away from scratch board conveyor tail 35m, makes scratch board conveyor bending section 18m, it is curved
Tune is all released to scratch board conveyor tail；
(4) coalcutter makes roller beveling enter coal wall to the traction of scratch board conveyor tail direction, is cut and is scraped by the bending section of 18m
Plate transporter tail coal wall from top to bottom all releases drag conveyor so that coalcutter reaches normal cutting depth 0.6m,
In straight knife state；
(5) upper and lower position of two rollers of coalcutter or so is exchanged, leads the normal coal cutting of machine to scratch board conveyor heading, chases after
Machine moves frame operation, starts next circulation feed；
(6) bulk manually abolishes construction: coal mining crusher machine is used in shale bulk a part that oil shale face production process generates,
Some shale bulk needs to be crushed using manual type, increases work face pressure wind connector quantity, makes pneumatic pick
Entire working face can be covered with range, aspect bulk is abolished, and according to the generating region of working face bulk, is slipping head, coalcutter
Bottom roll and upper roller respectively arrange one group to carry out bulk with machine and abolish construction, while scratch board conveyor head concentration is abolished,
Implementation abolishes construction to the comprehensive spreadability bulk for slipping head from slipping tail to coalcutter in advance；
(7) after oil shale have passed through mechanical, hand breaking in process of production, still there is the shale of the larger lumpiness in part, in oily page
Coal Sizing Crusher 2PLF120/150 is installed, working face oil shale is broken with classification by coal at scar transportation roadway belt conveyer head
It is broken that broken machine carries out last time, it is ensured that safe and efficient production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811079587.4A CN109403977A (en) | 2018-09-17 | 2018-09-17 | The method of well work mechanization high-efficiency mining oil shale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811079587.4A CN109403977A (en) | 2018-09-17 | 2018-09-17 | The method of well work mechanization high-efficiency mining oil shale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109403977A true CN109403977A (en) | 2019-03-01 |
Family
ID=65464780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811079587.4A Pending CN109403977A (en) | 2018-09-17 | 2018-09-17 | The method of well work mechanization high-efficiency mining oil shale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109403977A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5938289A (en) * | 1996-11-08 | 1999-08-17 | Superior Highwall Miners, Inc. | High wall mining conveyor system |
| RU2138640C1 (en) * | 1998-08-20 | 1999-09-27 | Институт угля и углехимии СО РАН | Method for development of thick gently dipping coal seam |
| CN103590842A (en) * | 2013-11-21 | 2014-02-19 | 山东大学 | Full-thread anchor rod pre-tightening force exerting device capable of achieving automatic anchor unloading and operation method |
| CN106337685A (en) * | 2016-10-21 | 2017-01-18 | 中国矿业大学(北京) | Method for combined exploitation of coal and its associated oil shales |
-
2018
- 2018-09-17 CN CN201811079587.4A patent/CN109403977A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5938289A (en) * | 1996-11-08 | 1999-08-17 | Superior Highwall Miners, Inc. | High wall mining conveyor system |
| RU2138640C1 (en) * | 1998-08-20 | 1999-09-27 | Институт угля и углехимии СО РАН | Method for development of thick gently dipping coal seam |
| CN103590842A (en) * | 2013-11-21 | 2014-02-19 | 山东大学 | Full-thread anchor rod pre-tightening force exerting device capable of achieving automatic anchor unloading and operation method |
| CN106337685A (en) * | 2016-10-21 | 2017-01-18 | 中国矿业大学(北京) | Method for combined exploitation of coal and its associated oil shales |
Non-Patent Citations (1)
| Title |
|---|
| 宋磊桐等: "油页岩工作面大块联合破除工艺研究", 《山东煤炭科技》 * |
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Application publication date: 20190301 |