CN106014411A - Deep coal seam cutting, cracking and mining integrated excavation technology - Google Patents
Deep coal seam cutting, cracking and mining integrated excavation technology Download PDFInfo
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- CN106014411A CN106014411A CN201610324419.1A CN201610324419A CN106014411A CN 106014411 A CN106014411 A CN 106014411A CN 201610324419 A CN201610324419 A CN 201610324419A CN 106014411 A CN106014411 A CN 106014411A
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- coal
- ended shearer
- single ended
- double
- shearer
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- 239000003245 coal Substances 0.000 title claims abstract description 77
- 238000005065 mining Methods 0.000 title claims abstract description 40
- 238000005520 cutting process Methods 0.000 title claims abstract description 15
- 238000009412 basement excavation Methods 0.000 title abstract description 4
- 238000005516 engineering process Methods 0.000 title abstract description 4
- 238000005336 cracking Methods 0.000 title abstract 2
- 239000011435 rock Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 7
- 230000010354 integration Effects 0.000 claims description 5
- 208000010392 Bone Fractures Diseases 0.000 abstract 1
- 206010017076 Fracture Diseases 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 7
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 5
- 238000004146 energy storage Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005096 rolling process 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
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention provides a deep coal seam cutting, cracking and mining integrated excavation technology. Coal falling and coal loading are achieved on an excavation work face by means of a dual-roller coal mining machine, the two ends of the work face are both provided with a single-roller coal mining machine used for cutting a notch to release stress of a coal wall, under the action of coal seam stored energy release and mining disturbance, strength of coal and rock is reduced due to inner fracture development of an upper coal seam, and coal falling can be easy for the coal mining machines. The single-roller coal mining machine at one end runs along with the dual-roller coal mining machine and cuts the notch at the bottom of the coal wall, and the single-roller coal mining machine at the other end stops at one end of the work face. When the dual-roller coal mining machine runs to the end of the work face, the single-roller coal mining machine following the dual-roller coal mining machine goes back to the other end of the work face in the same way. The dual-roller coal mining machine adjusts the position of a rocker to achieve oblique cutter feeding and reverse coal mining after triangular coal cutting. The single-roller coal mining machine on the cutter feeding side runs along with the dual-roller coal mining machine, and the notch is cut in the bottom of the coal wall. The steps are repeated, and coal breaking and efficient coal mining are achieved through coal seam highland stress.
Description
Technical field
The present invention relates to a kind of deep fractures cut-split-adopt integration process for stoping, especially one and be applicable to bottom rib open
Otch release ore deposit pressure, makes top rib energy storage release cause cranny development, improves the seam mining method of coal-winning machine back production efficiency.
Background technology
Along with socioeconomic fast development, energy-output ratio increases, and shallow embedding coal resources reduce year by year, and many mines enter
Deep coal mining stage of km buried depth.Deep fractures crustal stress increases, and adds pit mining and supporting roadway surrounding rock
Difficulty.Traditional process for stoping mostly is full-seam mining, only the coal seam that mining height is bigger is carried out separate zone production or Sub-Level Caving is opened
Excavating technology, does not has the process of ore deposit pressure release, on the one hand can produce bigger exploitation disturbance, the most not before rib exploitation
Crustal stress can be utilized to break coal, coal breakage.
At present, the coal seam process for stoping utilizing high-ground stress mainly has: Application No. CN102865080A discloses a kind of high
Crustal stress hard rock induced fracture work arrangement and non-explosion process for stoping, cause crustal stress to adjust by excavation induction tunnel and promote
Ore ruptures avalanche, and to the mechanically back production of non-broken ore, but this process for stoping is coaling and must be equipped with self-unloading in scraper and hole
The facilities such as truck, improve the labor intensity of workman compared with combining and adopting；Application No. CN201510164261.1 is open
A kind of coal-winning machine multiple-roll rocking arm and coal-mining method, it is proposed that the method for designing of three cylinder rocking arms, a rolling during coal mining
Cylinder front cut rib discharge rib stress, reduce levels coal strength, another two cylinder at rear cut levels rib,
But intermediate calender rolls and up-down roller interval are limited, and the rib Stress Release time is shorter, it is impossible to make full use of exploitation disturbance and break coal.
Summary of the invention
Technical problem: it is an object of the invention to the weak point overcome in prior art, it is provided that a kind of deep fractures cuts-splits-adopts
Integration process for stoping, discharges crustal stress by notch bottom rib, with coal seam energy storage release and the effect of exploitation disturbance
Under make superjacent internal crack grow, thus improve follow-up coal-winning machine back production efficiency.
Technical scheme: the deep fractures of the present invention cuts-splits-adopt integration process for stoping, comprise the steps:
A, the left single ended shearer, right single ended shearer and the twin-roll coal mining that run along scrapper conveyor in stope layout
Machine, the most left single ended shearer and right single ended shearer are mainly used in rib notch release rib stress, store up in coal seam
Can discharge and under the effect of exploitation disturbance, superjacent internal crack is grown and is reduced coal rock strength；Double-ended shearer is main
Want coal breakage, coaling facilities；
B, when initially mining, left single ended shearer and right single ended shearer are arranged in the termination, both sides of work surface,
Bottom rib, open incised notch mouth, discharge rib stress；During coal mining, double-ended shearer is from left single ended shearer end
Cutting sth. askew feed carry out normal coal mining activity after cutting Triangle Coal, double-ended shearer rear hydraulic support carries out pushing and sliding, scrapper conveyor
After rib side shifting, left single ended shearer starts to follow double-ended shearer and runs, and opens incised notch mouth bottom rib, this
During right single ended shearer rest on face end；
C, double-ended shearer run to right single ended shearer end, and left single ended shearer is quickly reversed operation to original position；
D, double-ended shearer right single ended shearer end adjust cylinder position, i.e. front roll upper, back roll under,
Carry out cutting sth. askew feed and cutting Triangle Coal, start reversely to mine；
E, double-ended shearer rear hydraulic support carry out pushing and sliding, and scrapper conveyor is after rib side shifting, and right single ended shearer is opened
Beginning to follow double-ended shearer to run, open incised notch mouth bottom rib, during this, left single ended shearer rests on work surface
Termination；
F, double-ended shearer run to left single ended shearer end, and right single ended shearer is quickly reversed operation to original position；
G, repetition step b, c, d, e, f, carry out next coal mining stroke, until completing whole exploiting field.
Beneficial effect: the present invention utilizes deep fractures high-ground stress to break coal, improves production efficiency, opens incised notch mouth bottom rib,
Making rib internal stresses release, during coal mining, one end single ended shearer is followed double-ended shearer and is run, bottom rib
Opening incised notch mouth, other end single ended shearer rests on face end；When double-ended shearer runs to face end,
The single ended shearer backtracking followed is to opposite side termination；Double-ended shearer adjusts rocking arm position and cuts sth. askew feed cut three
Reversely mine after the coal of angle；The single ended shearer of feed side is followed double-ended shearer and is run, and opens incised notch mouth bottom rib；
Move in circles successively, it is achieved utilize coal seam high-ground stress to break coal, efficiently mine.With coal seam energy storage release and the work of exploitation disturbance
Under with, superjacent internal crack is grown thus is reduced coal rock strength, beneficially coal-winning machine coal breakage, thus improves production
Efficiency, and the parts working lives such as pick can be extended.The present invention, on the basis of not changing existing coal-winning machine structure, uses
The high energy storage in rib scalloping method release coal seam makes cranny development in rib, thus substantially increases back production efficiency.
Accompanying drawing explanation
Fig. 1 is that the work surface stravismus of the present invention arranges schematic diagram.
Fig. 2 is that the work surface of the present invention faces layout schematic diagram.
Fig. 3 is that the work surface of the present invention is bowed layout schematic views.
In figure: 1-top board, 2-rib, the right single ended shearer of 3-, 4-scrapper conveyor, 5-double-ended shearer, the left single cylinder of 6-
Coal-winning machine.
Detailed description of the invention
Below in conjunction with the accompanying drawings an embodiment of the present invention is further described:
A, stope be disposed with along scrapper conveyor 4 run right single ended shearer 3, double-ended shearer 5, Zuo Dan
Flitting 6, the rightest single ended shearer 3 and left single ended shearer 6 are mainly used in rib notch release rib
Stress, under the effect of coal seam energy storage release and exploitation disturbance, superjacent internal crack is grown and is reduced coal rock strength；Double
Flitting 5 is main coal breakage, coaling facilities；
B, when initially mining, right single ended shearer 3 and left single ended shearer 6 are arranged in termination, work surface both sides,
Bottom rib 2, open incised notch mouth, discharge rib 2 stress；During coal mining, double-ended shearer 5 is adopted from left single cylinder
Coal machine end 6 is cut sth. askew feed carry out normal coal mining activity after cutting Triangle Coal, and double-ended shearer 5 rear hydraulic support pushes away
Slipping, scrapper conveyor 4 is after rib 2 side shifting, and left single ended shearer 6 starts to follow double-ended shearer 5 and runs, at coal
Opening incised notch mouth bottom wall 2, during this, right single ended shearer 3 rests on face end；
C, double-ended shearer 5 run to right single ended shearer 3 end, and left single ended shearer 6 is quickly reversed operation extremely
Original position；
D, double-ended shearer 5 adjust cylinder position, i.e. front roll at right single ended shearer 3 end and exist at upper, back roll
Under, carry out cutting sth. askew feed and cutting Triangle Coal, start reversely to mine；
E, double-ended shearer 5 rear hydraulic support carry out pushing and sliding, and scrapper conveyor 4 is after rib 2 side shifting, and right single cylinder is adopted
Coal machine 3 starts to follow double-ended shearer 5 and runs, and opens incised notch mouth, left single ended shearer during this bottom rib 2
Rest on face end；
F, double-ended shearer 5 run to left single ended shearer 6 end, and right single ended shearer 3 is quickly reversed operation extremely
Original position；
G, repetition step b, c, d, e, f, carry out next coal mining stroke, until completing whole Mining Area.
Claims (1)
1. deep fractures cut-split-adopt integration process for stoping, it is characterised in that comprise the steps:
A, the left single ended shearer, right single ended shearer and the twin-roll coal mining that run along scrapper conveyor in stope layout
Machine, the most left single ended shearer and right single ended shearer are mainly used in coal seam notch release rib stress, store up in coal seam
Can discharge and under the effect of exploitation disturbance, superjacent internal crack is grown and is reduced coal rock strength；Double-ended shearer is main
Want coal breakage, coaling facilities；
B, when initially mining, left single ended shearer and right single ended shearer are arranged in the termination, both sides of work surface,
Bottom rib, open incised notch mouth, discharge rib stress；During coal mining, double-ended shearer is from left single ended shearer end
Cutting sth. askew feed carry out normal coal mining activity after cutting Triangle Coal, double-ended shearer rear hydraulic support carries out pushing and sliding, scrapper conveyor
After rib side shifting, left single ended shearer starts to follow double-ended shearer and runs, and opens incised notch mouth bottom rib, this
During right single ended shearer rest on face end；
C, double-ended shearer run to right single ended shearer end, and left single ended shearer is quickly reversed operation to original position；
D, double-ended shearer right single ended shearer end adjust cylinder position, i.e. front roll upper, back roll under,
Carry out cutting sth. askew feed and cutting Triangle Coal, start reversely to mine；
E, double-ended shearer rear hydraulic support carry out pushing and sliding, and scrapper conveyor is after rib side shifting, and right single ended shearer is opened
Beginning to follow double-ended shearer to run, open incised notch mouth bottom rib, during this, left single ended shearer rests on work surface
Termination；
F, double-ended shearer run to left single ended shearer end, and right single ended shearer is quickly reversed operation to original position；
G, repetition step b, c, d, e, f, carry out next coal mining stroke, until completing whole exploiting field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324419.1A CN106014411B (en) | 2016-05-16 | 2016-05-16 | Deep fractures, which are cut to split, adopts integrated process for stoping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610324419.1A CN106014411B (en) | 2016-05-16 | 2016-05-16 | Deep fractures, which are cut to split, adopts integrated process for stoping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106014411A true CN106014411A (en) | 2016-10-12 |
| CN106014411B CN106014411B (en) | 2018-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610324419.1A Expired - Fee Related CN106014411B (en) | 2016-05-16 | 2016-05-16 | Deep fractures, which are cut to split, adopts integrated process for stoping |
Country Status (1)
| Country | Link |
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| CN (1) | CN106014411B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761751A (en) * | 2016-12-28 | 2017-05-31 | 中国矿业大学 | A kind of multiple degrees of freedom Rocker coal mining machine and its method |
| CN109209367A (en) * | 2018-10-31 | 2019-01-15 | 攀枝花学院 | Fully mechanized mining for high working face coal wall |
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|---|---|---|---|---|
| DE2825663A1 (en) * | 1978-06-12 | 1979-12-20 | Eickhoff Geb | Automatic double action mining machine - with rotating cutters advancing in parallel cut from two sides of centre of seam and returning idle to commence next cut |
| SU785492A1 (en) * | 1979-01-24 | 1980-12-07 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт | Coal seam excavation method |
| CN1932240A (en) * | 2006-09-21 | 2007-03-21 | 闫振东 | Full-seam cutting, retreating, separate moving and full-caving comprehensive mechanized coal mining method and equipment |
| CN101781988A (en) * | 2010-02-04 | 2010-07-21 | 山西晋城无烟煤矿业集团有限责任公司 | 'Bottom mining and top dropping' coal mining technology for soft coal bed with firmness coefficient below 1.3 |
| CN102536225A (en) * | 2011-12-20 | 2012-07-04 | 中国矿业大学 | Large-mining-height fully-mechanized-face fast coal mining technology |
| CN102797464A (en) * | 2012-08-13 | 2012-11-28 | 大同煤矿集团有限责任公司 | Mining method for deterioration coal under intrusion of igneous rock |
| CN104775812A (en) * | 2015-04-08 | 2015-07-15 | 中国矿业大学 | Multi-roller rocker arm of coal mining machine and coal mining method thereof |
| CN204627605U (en) * | 2015-05-14 | 2015-09-09 | 王丙成 | A kind of kerf cutter device and adopt the coal-winning machine of this device |
| CN105064994A (en) * | 2015-07-23 | 2015-11-18 | 河南理工大学 | Onboard continuous grooving pressure relief coal mining equipment and onboard continuous grooving pressure relief coal mining method |
-
2016
- 2016-05-16 CN CN201610324419.1A patent/CN106014411B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2825663A1 (en) * | 1978-06-12 | 1979-12-20 | Eickhoff Geb | Automatic double action mining machine - with rotating cutters advancing in parallel cut from two sides of centre of seam and returning idle to commence next cut |
| SU785492A1 (en) * | 1979-01-24 | 1980-12-07 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт | Coal seam excavation method |
| CN1932240A (en) * | 2006-09-21 | 2007-03-21 | 闫振东 | Full-seam cutting, retreating, separate moving and full-caving comprehensive mechanized coal mining method and equipment |
| CN101781988A (en) * | 2010-02-04 | 2010-07-21 | 山西晋城无烟煤矿业集团有限责任公司 | 'Bottom mining and top dropping' coal mining technology for soft coal bed with firmness coefficient below 1.3 |
| CN102536225A (en) * | 2011-12-20 | 2012-07-04 | 中国矿业大学 | Large-mining-height fully-mechanized-face fast coal mining technology |
| CN102797464A (en) * | 2012-08-13 | 2012-11-28 | 大同煤矿集团有限责任公司 | Mining method for deterioration coal under intrusion of igneous rock |
| CN104775812A (en) * | 2015-04-08 | 2015-07-15 | 中国矿业大学 | Multi-roller rocker arm of coal mining machine and coal mining method thereof |
| CN204627605U (en) * | 2015-05-14 | 2015-09-09 | 王丙成 | A kind of kerf cutter device and adopt the coal-winning machine of this device |
| CN105064994A (en) * | 2015-07-23 | 2015-11-18 | 河南理工大学 | Onboard continuous grooving pressure relief coal mining equipment and onboard continuous grooving pressure relief coal mining method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106761751A (en) * | 2016-12-28 | 2017-05-31 | 中国矿业大学 | A kind of multiple degrees of freedom Rocker coal mining machine and its method |
| CN106761751B (en) * | 2016-12-28 | 2018-10-16 | 中国矿业大学 | A kind of multiple degrees of freedom Rocker coal mining machine and its method |
| CN109209367A (en) * | 2018-10-31 | 2019-01-15 | 攀枝花学院 | Fully mechanized mining for high working face coal wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106014411B (en) | 2018-01-23 |
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Granted publication date: 20180123 |