CN102505942A - Safe and fast driving method for large-section open-off cut time-by-time tunneling - Google Patents

Safe and fast driving method for large-section open-off cut time-by-time tunneling Download PDF

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Publication number
CN102505942A
CN102505942A CN2011103559288A CN201110355928A CN102505942A CN 102505942 A CN102505942 A CN 102505942A CN 2011103559288 A CN2011103559288 A CN 2011103559288A CN 201110355928 A CN201110355928 A CN 201110355928A CN 102505942 A CN102505942 A CN 102505942A
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China
Prior art keywords
cut
coal
cutting
open
eye
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Pending
Application number
CN2011103559288A
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Chinese (zh)
Inventor
晋新林
李永斌
李俊福
张向阳
杨成栋
高贵君
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Shanxi Jincheng Anthracite Mining Group Co Ltd
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Shanxi Jincheng Anthracite Mining Group Co Ltd
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Application filed by Shanxi Jincheng Anthracite Mining Group Co Ltd filed Critical Shanxi Jincheng Anthracite Mining Group Co Ltd
Priority to CN2011103559288A priority Critical patent/CN102505942A/en
Publication of CN102505942A publication Critical patent/CN102505942A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a coal mining method, in particular to a safe and fast driving method for large-section open-off cut time-by-time tunneling. The safe and fast driving method can solve the problem of low efficiency in existing large-section open-off cut construction and comprises the following steps: enabling a coal cutter to start to drive along an open-off cut pilot tunnel from one side of a wind inlet lane of a designed working face, simultaneously laying tracks and a scraper-trough conveyer for transporting out coal cinders, grinding an angle on one side of open-off cut enlargement (the expanded side) to be constructed after the open-off cut pilot tunnel is driven in place, enabling the coal cutter to turn and adjust the machine with 90 degrees for cutting coal in the angle grinding position so as to enable a coal cutter unit to enter into a wind return lane, further adjust the machine with 90 degrees for cutting the coal so as to enable the unit to enter into the side end to be enlarged, then starting to drive the open-off cut enlargement side, transporting out the coal cut during the driving process by utilizing the well laid scraper-trough conveyer, and merging the open-off cut enlargement side with the open-off cut pilot tunnel for performing open-off cut on the working face after the end of driving of the open-off cut enlargement side.

Description

Big Cross-section Cut gradation becomes lane driving method safely and fast
Technical field
The present invention relates to a kind of coal mining method, be specially a kind of big Cross-section Cut gradation and become lane driving method safely and fast.
Background technology
The big section (150-200 rice) in Shanxi ancient book institute of coal group ore deposit is cut a tunneling construction method and is done, meaning as shown in Figure 1, and the left side of work plane is design return airway position (not construction); The right side is air intake lane (constructing), and fully-mechanized digging machine is cut the breach of the right side of a position digging out in advance from design and got into, then driving; Driving is corresponding laying track and scraper-trough conveyer simultaneously, waits to tunnel the position and form and lead cave, begins former road then and falls machine to the place of setting out; And then remove scraper-trough conveyer and track, and make a breach in the big side of brush again, again fully-mechanized digging machine is put into breach and begin tunneling construction; Lay simultaneously track and scraper-trough conveyer thereafter again,, so far wholely cut eye formation until ends of all constructing of the big side of brush.
Though this job practices also can form and cut eye, has some shortcomings, finally directly influenced the efficient of cutting the eye construction, specific as follows:
1, needs 90 meters in big (expansion) breach machine nest of big gun pick brush, need 2-3 consuming time days.
2, lead cave pick and put in place after, need 180 meters in machine, and need to lead the cave track and all dismantle, and, order again again cutting the eye brush when big.
3, lead cave pick and put in place after, because of falling the machine needs big with brush, the scraper-trough conveyer that needs to have laid is dismantled, and when treating that the driving brush is big, lays scraper-trough conveyer at the big afterbody of brush again again and produces coal, the cutterhead coal entering of dishing out is led in the cave side in addition, manual work need be cleared up once more.
3, if after leading cave pick and putting in place, do not form the whole wind pressure ventilation system, when brushing big construction, in the opposite direction with the operating personnel all the time owing to the wind direction of work plane local ventilation, the work plane coal dust is big, has influence on the healthy of worker and safe driving.
Summary of the invention
The present invention provides a kind of big Cross-section Cut gradation to become lane driving method safely and fast in order to solve the inefficient problem that exists in the existing big Cross-section Cut construction.
The present invention is realized by following technical scheme; A kind of big Cross-section Cut gradation becomes lane driving method safely and fast, and the beginning of a side in the work plane air intake lane that step is a cutting coal machine from the design is led the cave driving along cutting eye, and follow-up is simultaneously laid track and scraper-trough conveyer so that coal cinder is transported; After cutting eye and leading cave pick and put in place; To the side grinding angle of cutting eye brush big (expansion side) that will construct, the cutting coal machine accent machine 90 degree coal cuttings of turning round at the angle lap place make the coal cutting unit get into the return airway position, transfer machine 90 degree coal cuttings that unit is got into once more and wait to brush big side; Begin driving then and cut the big side of eye brush; The scraper-trough conveyer that the coal utilization of cutting out in the tunneling process lays transports, and after cutting the big side driving of eye brush and finishing, cuts the big side of eye brush and cuts eye and lead cave and merge the back and cut eye for work plane.
Compare with the technical scheme of present use, tunneling the advantage of cutting a job practices after of the present invention the transformation has:
1, realizing that the fully-mechanized digging machine unit turns round transfers machine voluntarily, need not down unit to former lead the cave opening part the bigger machine nest of big gun pick brush unit is got into brush big side.
2, consistent all the time (forced air duct is not less than 8 meters before placing and leading the cave work plane for coal cutting driver and distinguished and admirable direction; The pull-out type air duct is removed with the big driving of brush; Effectively reduce the operating personnel like this and receive the coal dust influence degree), thus reached the purpose of safe driving.
3, accomplish unit and transfer machine only to need 2-3 consuming time class, improved Homes Using TV greatly.
4, driving is cut the scraper-trough conveyer that eye laid when leading cave and need not to move again, cuts the eye brush when big at driving, can reuse once more.
5, driving is cut eye brush when big, can use elevating conveyor to produce coal simultaneously and use cutterhead that coal is thrown on the scraper-trough conveyer and produce coal.Also can not use elevating conveyor, only coal is thrown on the scraper-trough conveyer and can produce coal with cutterhead.All need not the coal cinder that labor cleaning's cutterhead is dished out.
6, driving is cut eye brush when big, can remove with the big driving of brush cutting the pipeline that intraocular do not want, and saves recovery time.
7,, greatly reduce operating personnel's labour intensity along with the minimizing of operation.
Description of drawings
Fig. 1 is existing job practices sketch map
Fig. 2 is the method for the invention sketch map.
The specific embodiment
Meaning as shown in Figure 2, a kind of big Cross-section Cut gradation becomes lane driving method safely and fast,
Certain exploiting field, colliery, design work face 5,180 meters of length; Work plane 5 right sides are the air intake lane, and but the left side is the return airway 8 of digging in the design not, and the beginning of a side in the work plane air intake lane 1 that step is a cutting coal machine 6 from the design is led cave 4 drivings along cutting eye; Cutting eye, to lead cave 4 wide 4.0 meters, and follow-up is simultaneously laid track and scraper-trough conveyer 3 so that coal cinder is transported, cut eye lead cave 4 dig put in place after; The eye of cutting to constructing is brushed big side construction angle lap place 7; The cutting coal machine 6 accent machine 90 degree coal cuttings of turning round at angle lap place 7 make the driving unit get into return airway 8 positions, transfer machine 90 degree coal cuttings to make unit get into big side 2 left ends of eye brush to be cut once more, and cutting big side 2 width of eye brush is 2.2 meters; Begin driving then and cut the big side 2 of eye brush, the coal utilization of cutting out in the tunneling process is led the scraper-trough conveyer 3 that cave 4 lays and is transported cutting eye.After cutting big side 2 drivings of eye brush and finishing, cut the big side 2 of eye brush and cut eye and lead cave 4 and merge the back and cut eye for work plane.Can use elevating conveyor to produce coal simultaneously when producing coal and use cutterhead that coal is thrown on the scraper-trough conveyer and produce coal.Also can not use elevating conveyor, only need to handle cutterhead coal is thrown on the scraper-trough conveyer and can produces coal.
Dotted portion is represented the route of cutting coal machine among the figure, and double dot dash line is distinguished and admirable direction, because return airway 8 not construction as yet.So lead in the cave 4 cutting eye, after wind is sent into driving face, can only oppositely flow out along cutting the big side of eye brush, the moving direction of air-out wind direction and cutting coal machine is consistent like this.
Applicable cases:
1, present, ancient book institute of Shanxi coal group ore deposit driving is cut the construction of eye and is all according to said method constructed operational excellence.
2, along with needs that future, main equipment was installed with solve the big requirement of high gas ventilation section, following big section digging laneway will become a kind of trend, and this technology can improve the efficient of big section driving greatly.When if section length is apart from tunnelling greatly, uses belt and scraper-trough conveyer (as the medium of coal breakage) to use simultaneously and can solve the problem of producing coal; If unit is longer, in the time of can't transferring machine voluntarily, can dismantles the real in-site mixing machines of directions such as cutterhead or unit scraper-trough conveyer and carry out big gun pick unit breach etc. simultaneously and make unit carry out the accent machine.

Claims (1)

1. one kind big Cross-section Cut gradation becomes lane driving method safely and fast; It is characterized in that: the beginning of a side in the work plane air intake lane that step is a cutting coal machine from the design is led the cave driving along cutting eye; Follow-up is simultaneously laid track and scraper-trough conveyer so that coal cinder is transported, and after cutting eye and leading the cave pick and put in place, cuts an eye brush side grinding angle of (expansion side) greatly to what will construct; The cutting coal machine accent machine 90 degree coal cuttings of turning round at the angle lap place make the coal cutting unit get into the return airway position; Transfer machine 90 degree coal cuttings that unit is got into once more and wait to brush big side, begin driving then and cut the big side of eye brush, the scraper-trough conveyer that the coal utilization of cutting out in the tunneling process lays transports; After cutting the big side driving of eye brush and finishing, cut the big side of eye brush and cut eye and lead cave and merge the back and cut eye for work plane.
CN2011103559288A 2011-11-11 2011-11-11 Safe and fast driving method for large-section open-off cut time-by-time tunneling Pending CN102505942A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102877847A (en) * 2012-09-24 2013-01-16 山西晋城无烟煤矿业集团有限责任公司 Method for tunneling open-off cut expansion opening section of fully mechanized coal mining face
CN104074520A (en) * 2014-06-25 2014-10-01 中国矿业大学 Method for determining lower open-off cut positions of shallow-buried short-distance goaf-side coal pillars
CN104265319A (en) * 2014-09-15 2015-01-07 中国神华能源股份有限公司 Constructing method of construction cutting hole
CN105257296A (en) * 2015-10-08 2016-01-20 山西晋城无烟煤矿业集团有限责任公司 Working face through-cut tunneling construction once-tunneling process
CN108104821A (en) * 2017-11-22 2018-06-01 平顶山天安煤业股份有限公司十矿 Large section open*.off is constructed and its method for protecting support
CN109519187A (en) * 2018-12-17 2019-03-26 山西中煤华晋能源有限责任公司 Cut a tunneling construction process
CN111042816A (en) * 2019-12-31 2020-04-21 乌海市乌化矿业有限责任公司 Mine section hole-cutting roadway-forming tunneling method
CN111691886A (en) * 2020-06-23 2020-09-22 国家能源集团宁夏煤业有限责任公司 Construction method for opening cutting hole by fully-mechanized coal mining machine in fully-mechanized coal mining face
CN113503179A (en) * 2021-08-02 2021-10-15 太原理工大学 Method for controlling large-section open-off cut tunneling surrounding rock of overlying goaf ultra-close coal seam

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102877847A (en) * 2012-09-24 2013-01-16 山西晋城无烟煤矿业集团有限责任公司 Method for tunneling open-off cut expansion opening section of fully mechanized coal mining face
CN102877847B (en) * 2012-09-24 2014-11-19 山西晋城无烟煤矿业集团有限责任公司 Method for tunneling open-off cut expansion opening section of fully mechanized coal mining face
CN104074520B (en) * 2014-06-25 2016-04-27 中国矿业大学 A kind of shallow embedding closely adopts sky coal column incision eye method for determining position in side
CN104074520A (en) * 2014-06-25 2014-10-01 中国矿业大学 Method for determining lower open-off cut positions of shallow-buried short-distance goaf-side coal pillars
CN104265319A (en) * 2014-09-15 2015-01-07 中国神华能源股份有限公司 Constructing method of construction cutting hole
CN105257296A (en) * 2015-10-08 2016-01-20 山西晋城无烟煤矿业集团有限责任公司 Working face through-cut tunneling construction once-tunneling process
CN108104821A (en) * 2017-11-22 2018-06-01 平顶山天安煤业股份有限公司十矿 Large section open*.off is constructed and its method for protecting support
CN109519187B (en) * 2018-12-17 2020-02-21 中煤华晋集团有限公司 Construction process for cutting and tunneling
CN109519187A (en) * 2018-12-17 2019-03-26 山西中煤华晋能源有限责任公司 Cut a tunneling construction process
CN111042816A (en) * 2019-12-31 2020-04-21 乌海市乌化矿业有限责任公司 Mine section hole-cutting roadway-forming tunneling method
CN111042816B (en) * 2019-12-31 2021-03-19 乌海市乌化矿业有限责任公司 Mine section hole-cutting roadway-forming tunneling method
CN111691886A (en) * 2020-06-23 2020-09-22 国家能源集团宁夏煤业有限责任公司 Construction method for opening cutting hole by fully-mechanized coal mining machine in fully-mechanized coal mining face
CN111691886B (en) * 2020-06-23 2021-08-31 国家能源集团宁夏煤业有限责任公司 Construction method for opening cutting hole by fully-mechanized coal mining machine in fully-mechanized coal mining face
CN113503179A (en) * 2021-08-02 2021-10-15 太原理工大学 Method for controlling large-section open-off cut tunneling surrounding rock of overlying goaf ultra-close coal seam

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Application publication date: 20120620