CN102094675B - Safe moving and withdrawing method of complex-structured thick coal seam fully mechanized heavy equipment - Google Patents
Safe moving and withdrawing method of complex-structured thick coal seam fully mechanized heavy equipment Download PDFInfo
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- CN102094675B CN102094675B CN2010106166229A CN201010616622A CN102094675B CN 102094675 B CN102094675 B CN 102094675B CN 2010106166229 A CN2010106166229 A CN 2010106166229A CN 201010616622 A CN201010616622 A CN 201010616622A CN 102094675 B CN102094675 B CN 102094675B
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Abstract
The invention discloses a safe moving and withdrawing method of complex-structured thick coal seam fully mechanized heavy equipment. A moving and withdrawing route comprises a moving and withdrawing transport route through an assisted transport gate road, i.e. from a working face to the assisted transport gate road to an assisted transport gate road roundabout channel to an assisted transport tunnel to an auxiliary adit to a stock yard, and a moving and withdrawing transport route through a belt gate road, i.e. from the working face to the belt gate rod to a return airway to the assisted transport tunnel to the stock yard; and a reasonable mining-stopping supporting method and a roof supporting method during the period of moving and withdrawing are simultaneously combined. By virtue of the moving and withdrawing method, maximum effectiveness of labor force and equipment resources are fully developed, long-distance comprehensive transportation of the thick coal seam fully mechanized heavy equipment is realized, and safe and fast moving and withdrawing of facilities in the working surface is ensured.
Description
Technical field
The present invention relates to the Coal Production method, specifically is that a kind of down-hole weight equipment safety is removed the method for removing.
Background technology
Face moving work is a great system engineering, is an important component part creating the high-yield and high-efficiency mine, also is a vital link in the mine production preparation.Can the quick removal of home that realize " safety, high-quality, efficient " fall face, be the important guaranteed conditions that realize the mine high-yield and high-efficiency, also is simultaneously a big technical barrier that has perplexed what years of coal enterprise.The overall process point of face moving is many, wide, battle line is long, has only each construction, prepares link and make overall plans, and carries out careful careful reasonable arrangement, could realize that work plane removes the target of removing fast.
At present; Most mine fully-mechanized mining working removals of home generally adopt coal-winning machine to do back the method between evacuating certainly; Near work plane stops adopting line during the cut of last a few cutter coals; Realize normal cut through the whole reach of coal-winning machine and transporter, it is motionless that hydraulic support then keeps, with form enough equipment transfer to reach back evacuate between.In time carry out roof timbering then; Aspect the supporting of removing the frame passage, generally adopt anchor net anchor cable combined supporting, generally adopt back and remove " auxilliary lane multichannel " technology; It to the effect that excavates two adits that are parallel to stope in advance before the fully mechanized coal face back production stops adopting line; Between two auxilliary lanes, excavate some connection roadways, promptly constituted " auxilliary lane multichannel " system.Accent when removing is returned to passage as stope hydraulic support and miscellaneous equipment in the tunnel of stopping adopting line one side by fully-mechanized mining working, is referred to as main return channel or return channel.Main return channel is removed the central core of circulation that working face equipment uses as returning, and except that taking anchor pole, diamond mesh combined supporting, also is equipped with hydraulic prop, mining i beam beam, hydraulic chock etc. and carries out reinforce support.Another tunnel is referred to as auxilliary return channel as returning the usefulness of removing removal of home vehicle assistant conveyance.Main and auxiliary return channel section is rectangular cross section, and main return channel cross dimensions is confirmed according to the support model.Auxilliary return channel cross dimensions can satisfy railless free-wheeled vehicle, bracket carrier goes and the equipment carrying gets final product.
Under the tradition return channel support process, remove the fully-mechanized mining working of equipment gross mass less than 2000 t, need approximately about 35d, remove that to remove expense height, time long, safety problem is given prominence to.Weight equipment is removed safely and fast and is removed Study on Technology and also do not see bibliographical information to the super high seam fully mechanized coal face.
Summary of the invention
The purpose of this invention is to provide a kind of safety, the ultra thick coal bed fully mechanized weight equipment safety of putting of labyrinth is removed the method for removing efficiently.
Be to realize above-mentioned purpose, the scheme that the present invention adopts is: the ultra thick coal bed fully mechanized weight equipment safety of putting of a kind of labyrinth is removed the method for removing, comprise stop adopting supporting, remove remove during roof timbering and remove and remove route,
Remove and remove route and be:
(1) removes through the assistant conveyance crossheading and remove transit route: work plane-assistant conveyance crossheading-assistant conveyance crossheading fortune lane-secondary footrill-stock ground of detouring-assist.
(2) remove through the belt crossheading and remove transit route: work plane-belt crossheading-return airway-auxilliary fortune lane-stock ground.
Stopping adopting supporting method is:
(1) stops adopting beginning 0～5m and above the back timber of support, begin to lay the individual layer diamond mesh, whenever cut a cutter and carry out lapping networking;
(2) stop adopting beginning 5～14.5m and above the back timber of support, lay the two-tier rhombic wire lath, whenever cut a cutter coal and carry out lapping networking in support front-axle beam termination and on the coal of top, play row's bolt support, mining height remains on 3.5m; Row's spacing 800mm * 1750mm, and add the W steel band of model and lay the two-tier rhombic wire lath, steel band length is 3.8m; Per two cutter coals carry out the long anchor cable of a row 8.3m and add the supporting of steel supporting plate; Supporting plate is 300 * 300 * 16mm; Row's spacing 1600mm * 1750mm; Behind supporting two row, third and fourth, five rows adopt anchor cables to hang steel I-beam to carry out supporting, i iron length is that every i iron of 3.3m is played three anchor cables and carried out supporting; Anchor pole and anchor cable interlaced arrangement, anchor pole adopts Ф 22 * 2500mm, and anchor cable adopts the steel strand of Ф 17.8 * 8300mm, and the W steel band of model is 3800 * 150 * 3;
(3) stop adopting beginning 14.5～17.5m position pushing and sliding and do not draw support, the coal cutting four blade, a beginning pushing and sliding do not move frame, and mining height is controlled at 3.5m, adopts double-level-metal net+W steel band+anchor pole+anchor cable to hang H shaped steel shack+combination cable bolting machine road top board+11
#Mining i beam, row's spacing of anchor pole is 800 * 875mm, cuts three cutter coals; Last not pushing and sliding of cutter; Make support front-axle beam termination be not less than 3.0m, reserve one and remove device channels apart from rib distance, from bracket base to rib 5700mm; Above the machine road, reach forestope then and play three row's combination anchor cables combination anchor cables, row's spacing is 1.6 * 5.25m interlaced arrangement.
Remove remove during the roof timbering method be: before removing hydraulic support, with all monomer columns of head end head all with pin for, begin to remove frame work then.Utilize the shield support supporting by removing supporters rear portion top board, whenever remove one and install five groups of band cap-piece posts, every group of 2 pins in its space; Group is 1m with the group spacing, removes in the process like roof cracking, when pressure is big as returning; Can beat grillage or increase pin quantity, whenever withdraw 5 and make a call to a grillage.
Compared with prior art, the present invention has following characteristics:
(1) removes the passage support technology through adopting advanced equipment to remove, guaranteed that the full coal section equipment of complex geological condition withdraws the supporting safety in space.
(2) network planning control technology and scientific and reasonable arrangement are removed and are removed order; Given full play to the maximum effectiveness of labour and device resource; Realized the whole long-distance transportation of ultra high seam fully mechanized coal face weight equipment; Guaranteed that removing safely and fast of work plane weight equipment remove, can shift to an earlier date the task of removing of removing of having accomplished the work plane all devices about 14 days.
Description of drawings
Fig. 1 is the ventilation system sketch map of work plane.
Among the figure, 1-belt crossheading; 2-assistant conveyance crossheading; The 3-return airway; 4-belt lane; 5-assistant conveyance lane.
The specific embodiment
The ultra thick coal bed fully mechanized weight equipment safety of putting of a kind of labyrinth of the present invention is removed the method for removing, comprise stop adopting supporting, remove remove during roof timbering and remove and remove route.
At present, labyrinth super high seam fully mechanized coal face roadway arrangement and face-airing system are:
Roadway workface is arranged
Work plane is that into one time two lane is arranged, two crossheadings are all perpendicular to big lane (comprising belt lane 4, assistant conveyance lane 5 and return airway 3), and wherein belt crossheading 1, assistant conveyance crossheading 2 are arranged along seat earth; Belt crossheading 1 and big belt lane, lane 4, assistant conveyance crossheading 2 is connected with big assistant conveyance lane, lane 5 through connection roadway, and the top air return way is arranged along roof, is connected with big lane return airway 3.The ventilation system of work plane is a U type draft type, and its concrete arrangement is seen Fig. 1.
Work plane equipment mainly comprises conveyor, elevating conveyor and crushing engine, anterior scratch board conveyor, coal-winning machine, rear portion scratch board conveyor, several hydraulic supports, pumping plant trains, moves belt tail etc. certainly, and concrete configuration sees the following form.
Table 1 hydraulic support technical data
The main dynamoelectric equipment configuration of table 2 work plane
One, remove and remove confirming of route and order
The model of work plane equipment route of withdrawal adopts the limited client of the stage many information desks of a parallel connection cyclic queue model, and four service stages are respectively empty wagons operation, entrucking, loaded vehicle operation and unloading.
The queuing pattern is M/M/C, i.e. railless free-wheeled vehicle parallelly connected many information desks system of arriving and being all the time interval and service time that negative exponent distributes, and systematic parameter is calculated as follows:
I on the stage the average population of railless free-wheeled vehicle be:
Ni=∑αniP(n1,n2,n3,n4)
=(xi/T)(dT/dxi)
In the formula:
Ni-i is the average population of railless free-wheeled vehicle on the stage;
Possibly making up of α-Integer N;
Ni-i railless free-wheeled vehicle number on the stage;
P (n1, n2, n3, n4)-i has the probability of ni decometer car on the stage;
xi=Sk/Si
The average service rate in Sk-k stage, k is a stage No. to be analyzed;
The average service rate in Si-i stage.
T=∑α
（xini/qi）
M-stage number, M=4 here;
As ni≤mi
Qi=mi! Mi (ni-mi) works as ni>mi;
Mi-at the information desk number of i on the stage.
According to the queueing theory principle, the relation of the average queuing railless free-wheeled vehicle number (Nqi) of i on the stage, i average waiting time (Wi) and the average queuing time (Wqi) of i on the stage on the stage is following:
Ni=A?Wi
Nqi?=A?Wqi
Wi=?Wqi+1/Si
In the formula:
A-railless free-wheeled vehicle arrival rate;
The average service rate in Si-i stage (the entrucking efficient of railless free-wheeled vehicle);
A=N/(Tc+?Wqi+?Wqj)
The sum of railless free-wheeled vehicle in N-system;
The average cycle of operation of Tc-railless free-wheeled vehicle, do not comprise the stand-by period;
The average queuing time (like discharge point) of Wqj-j railless free-wheeled vehicle on the stage.
By above-mentioned various the derivation:
Wqi=[(N-Nj)(NiTc)+Ni(njTc-N/Sj)]/[N(N-ni-nj)]
Wqj=[?Nj(Wqi+1/Si)]Ni-1/?Sj
The utilization rate in i stage (Ui) is:
Ui=A/miSi=N/[miSi(Tc+?Wqi?+?Wqj)]
Above-mentioned various in, according to 1 empty wagons operation, 2 entruckings, the operation of 3 loaded vehicle, the quantity and the running time of 4 these 4 stage railless free-wheeled vehicles of unloading, in the reality, 3 of anti-explosion diesel support fork lift trucks, 4 of anti-explosion diesel bracket carriers, 6 of MPVs; Be respectively the running time in 4 stages: 30min, 15min, 45min, 10min.In the above-mentioned correlation formula of data substitution of the quantity of 4 stage railless free-wheeled vehicles and running time, obtain the average occupation probability P (n1)=0.30 of railless free-wheeled vehicle, P (n2)=0.19, P (n3)=0.35, P (n4)=0.16.According to the queueing theory principle, according to on-the-spot practical operation situation, the average queuing railless free-wheeled vehicle on 4 stages is counted Nqi and is respectively 1,2; 1,2, the average waiting time Wi on 4 stages is respectively 5min, 10min; Average queuing time Wqi on 5min and 5min and 4 stages is respectively 5min, 10min, 5min and 5min; Utilization rate through computer programming 4 stages of operation is respectively 0.31,0.19,0.38 and 0.12.
Work plane equipment according to above structure is removed queue theory model and the computer data operation result of removing, and in conjunction with on-the-spot actual conditions, draws work plane equipment route of withdrawal, withdraws optimal case in proper order: remove and remove route:
(1) remove through the assistant conveyance crossheading and remove transit route: work plane-assistant conveyance crossheading-assistant conveyance crossheading fortune lane-secondary footrill-stock ground of detouring-assist,
Need remove the equipment and the quantity of removing
1 one on the anterior transporter of 1 of coal-winning machine, work plane, 1 one on work plane rear portion transporter, 1 one of elevating conveyor, 1 one of crushing engine, move 1 of belt machine end, 2 on mobile substation AW2000 type, 2 on mobile substation Beckor2500 type, 1 of rubber conveyer leather belt head, hydraulic support certainly: one group of face end support, 127 of 7 ordinary stents of transition bracket.
(2) remove through the belt crossheading and remove transit route: work plane-belt crossheading-return airway-auxilliary fortune lane-stock ground;
Haulage device:
One group on switch train (not comprising the mobile substation), scalable rubber conveyer belt, tie rod, H frame, U-shaped card, the leather belt head switch and move change, on drag rod, lower supporting rod, (not comprising the leather belt head part) 1 one.
Remove and remove order:
The belt crossheading:
(1) scalable rubber conveyer mid portion, belt, U-shaped card, tie rod, H frame, leather belt head switch and move change, carrying roller up and down;
(2) pumping plant train (remove 4 and move the change car).
The assistant conveyance crossheading:
Coal-winning machine, anterior drag conveyor, elevating conveyor and crushing engine, belt is from moving tail, and 4 are moved change car, leather belt head, 1
#Face end support, rear portion scratch board conveyor head, 135
#, 134
#Transition bracket, rear portion scratch board conveyor tail, rear portion drag conveyor mid portion, 2
#-133
#Support.
The carrying of work plane equipment adopts special use to remove the equipment of removing, and its important technological parameters is following:
Anti-explosion diesel support fork lift truck
Specifications and models: ED40 SH
Manufacturer: VAI mining tunnel device Co., Ltd
The place of production: Australia
Lifting capacity: 40,000 kg
Dynamical system: 170 kilowatts of Caterpillar 3126 types, turbocharging, water-cooled anti-explosion diesel engine, wet type exhaust system.
Turning radius: internal diameter: 3.47m external diameter: 6.97m
Appearance and size (length * wide * height): 10.033 m * 3.2m * 2 m
Type of drive: four-wheel drive.
Starting mode: pneumatic
Deadweight: 47,000 kg
The anti-explosion diesel bracket carrier
Specifications and models: LWC-40T
Manufacturer: Australian John Fen Lei Engineering Co., Ltd
The place of production: Australia
Transporting capacity: 40,000 kg
Dynamical system: that reins in 3126 types, turbocharging, water-cooled anti-explosion diesel engine, wet type exhaust system 170 kilowatts of Kates.
Turning radius: internal diameter: 3.47m external diameter: 6.97m
Appearance and size (length * wide * height): 9.421 m * 3.45m * 1.67m
Type of drive: four-wheel drive.
Starting mode: pneumatic
Deadweight: 22,500 kg
Multi-functional transport vehicle
Specifications and models: Mk III 2000
Manufacturer: Australian John Fen Lei Engineering Co., Ltd
The place of production: Australia
Transporting capacity: 10 tons of compartment load-carryings
Manned several 21 people in compartment
Dynamical system: Isuzu 6BG1 NA Diesel engine provides power
Appearance and size (length * wide * height): 7341 mm * 2468 mm * 1687 mm
Type of drive: Clark torque converter and power transmission Starting mode: compressed air 140 litre volume atm
Deadweight: unloaded 9.660 t, heavily loaded 19.660t.
Because work plane equipment is many, its dismounting and remove and remove technology and have nothing in common with each other, existing classification is simply set forth:
(1) scalable adhesive tape conveyor
At first, open belt one joint near leather belt head bark pocket belting, clamp belt with entrainment device; Extract the bar of wearing of joint out, clamp belt with the volume belt dressing then, pine belt tension winch limit, limit is with volume belt dressing volume belt; Every volume intact one is rolled up, and after withdrawing from belt, clamps belt with entrainment device again and continues the shedding band; Till having moved back whole belt, cut off conveyor Switching Power Supply and locking, take the load side cable apart; Remove each pipeline and Monitoring Line and marked, the disintegration unloading roller.Be drawn out to the entrucking of entrucking point with winch and explosion proof forklift, again by belt Caudad head withdraw middle frame, side bar, anti-down clamp, and up and down the carrying roller hoolivan of neatly packing into transport to ground, belt splits three and saves the ED40 forklift and transport from 5102 lanes from moving tail.
(2) elevating conveyor, crushing engine
Earlier the elevating conveyor flight portion is removed, take the connecting ring of connection chain apart, start elevating conveyor and use matching with winch, chain is told on belt, luxuriant to every pitch chain marked, transport to leather belt head through belt and transport.Cut off elevating conveyor Switching Power Supply and locking afterwards, take the load side cable successively apart, remove the cable on elevating conveyor top; Take elevating conveyor cable clamp, spillplate, cover plate apart; Disintegration crushing engine rear portion chute and reprinting tail, disintegration crushing engine motor and elevating conveyor motor reducer, disintegration elevating conveyor gap bridge portion chute; Disintegrate at last and reprint head and headstock, with the matching with winch explosion proof forklift equipment is all transported to the entrucking of entrucking point at last.
(3) coal-winning machine
Earlier coal-winning machine is left to slipping tail, the connecting pin of front and back cylinder rocking arm and fuselage is taken apart,, cut off the coal-winning machine power supply afterwards, coal-winning machine together with chute bottom the coal-winning machine, is loaded onto two support fork lift trucks and transported ground the entrucking of scurrying out of front and back cylinder and rocking arm integral body.
(4) work plane front and rear portions transporter
Before transporter is removed, earlier the float coal in the chute, foreign material etc. all to be drawn clearly, remove scraper plate; Again the connecting ring above the chute is taken apart,, gone out to tell chain with matching with winch is past on one side on one side with motor pine chain; When having told shot of a cable; With tight chain brake chain is fixed, prevented to fall back, the operation that continues then to repeat to tell chain is up to all having told chain.The face conveyor chain is all withdrawed from; Cut off conveyer Switching Power Supply and locking afterwards; Take the load side cable apart; Disintegrate then motor reducer zygosome, head, tail, take counterpart connector between each chute apart, take rack pins and tooth bar, cable channel clamping plate, pilot pin and cable channel between two chutes apart, transport work plane successively with drawing hoist and transport to the entrucking of entrucking point.
(5) equipment train
The linkage of mobile substation, hydraulic power unit, switch and common control equipment is taken apart; Remove each cable and control circuit and marked; Holder cable unit on the train encoded disassemble out well, the mobile substation transports from 5102 lanes through work plane with bracket carrier integral body.Pumping plant, other equipment trains transport from 2102 lanes with hoolivan.
(7) hydraulic support
Withdraw order: remove face end support earlier, withdraw 135 supports by head successively to tail then.
Remove face end support:
The head that will afterwards slip is earlier drawn back 1 meter, before dismounting, each one of face end support is numbered.When removing face end support; Then face end support left side back timber is installed the pin supporting; Then face end support left side column is fallen and removes on the left of column, cooperate with explosion proof forklift with chain sling left side back timber two parts entrucking is transported, afterwards left-hand foot three part entruckings are transported; Right side back timber, column, base are identical with the left side dismantle processes, in the middle of removing, should add strong supporting.
Remove transition bracket:
Before removing transition bracket; With all monomer columns of head end head all with pin for, begin to remove frame work then, concrete grammar is: before falling by removing supporters; On its adjacent frame stretch-forward beam, hang a 20t pulley with Φ 22*86 chain; The drawing hoist wire rope connects with Φ 22*86 chain and three M27 high-strength bolts on by removing supporters four connecting rods through the pulley bolt, and feeding is fallen and started winch behind the frame support is moved forward, when being exceeded the adjacent stent base by the removing supporters base; The wire rope gib head is changed bolt to be driven to transfer on the support propons and transports with the bracket carrier entrucking to the work plane of scurrying out; Whenever remove one and install five groups of band cap-piece posts in its space, every group of 2 pins, group is 1m with the group spacing.
Ordinary stent in the middle of removing:
Fall by removing supporters: fall frame and adopt a distant place neighboring frame-operated, at first regain face guard, fall forestope, fall main canopy then.
Drawing hoist pull out accent to: before falling by removing supporters; On the cover frame propons, hang a 20t pulley with Φ 22*86 chain; The drawing hoist wire rope starts winch through pulley bolt on by removing supporters four bars (with Φ 22*86 chain and three M27 high-strength bolts) makes the support reach; When being exceeded the adjacent stent base by the removing supporters base, the wire rope bolt is driven to transfer on the support propons to ajusting when withdrawing passage, bracket carrier falling to reach to remove the frame passage to ahead and astern to the support place; The hoist point and the hoist hook of support are aligned; Lifting link is installed on the lift arm of lift unit of trailer, the handle control oil cylinder of support through hinged place, trailer side reaches to greatest extent and stretches out, away from ground.
Before the car starting, guarantee that the support antichattering system is fixed on the support, the fixedly chain at trailer rear portion also can prevent the support swing.When unloading lower carriage; Earlier bracket carrier is parked in and specifies the place of placing; Untie the back chain and regain antichattering system, make support be put in ground, after lift arm takes off elevator chain and hook, be placed on the support with the handle of side, trailer hinged place; Bracket carrier is opened a segment distance forward make support stay the original place, so just accomplished the loading and unloading of support.
Supporting roof: whenever remove a support and install 3 groups of pins in its space, every group of 2 pins, group is 1m with the group spacing, whenever withdraws 5 and makes a call to a grillage, returns and to remove in the process like roof cracking, when pressure is big, beats grillage or increase pin quantity.
The prop drawing caving: first caving is carried out after having put shield support.Normal prop drawing caving is: whenever remove a support and carry out a prop drawing caving job, keep two row's pins and safeguard top board.
Two, stop adopting support technology
The stopping of work plane adopted the position for apart from return airway 220～230m scope, and condition all meets and stops adopting when requiring in every respect, promptly gets into and stops the program of adopting.When stopping adopting transporter before the work plane and hydraulic support are decomposed, use hydraulic prop as the power of passing transporter, work plane is pushed ahead the equipment of reserving and is removed the passage of removing.
Support pattern adopts anchor pole, anchor cable, combination anchor cable, two-tier rhombic wire lath, W steel band of model, wire rope, i iron, hydraulic prop that the top coal between set cap top and machine road and the working face wall is carried out combination supporting, guarantees the safety of the dismounting passage of equipment.
(1) stops adopting beginning 0～5m and above the back timber of support, begin to lay the individual layer diamond mesh.Whenever cut a cutter and carry out lapping networking.
(2) stop adopting beginning 5～14.5m and above the back timber of support, lay the two-tier rhombic wire lath, whenever cut a cutter coal and carry out lapping networking in support front-axle beam termination and on the coal of top, play row's bolt support, mining height remains on 3.5m; Row's spacing 800mm * 1750mm, and add the W steel band of model and lay the two-tier rhombic wire lath, steel band length is 3.8m; Per two cutter coals carry out the long anchor cable of a row 8.3m and add the supporting of steel supporting plate; Supporting plate is 300 * 300 * 16mm; Row's spacing 1600mm * 1750mm; Behind supporting two row, third and fourth, five rows adopt anchor cables to hang steel I-beam to carry out supporting, i iron length is that every i iron of 3.3m is played three anchor cables and carried out supporting; Anchor pole and anchor cable interlaced arrangement, anchor pole adopts Ф 22 * 2500mm, and anchor cable adopts the steel strand of Ф 17.8 * 8300mm, and the W steel band of model is 3800 * 150 * 3.In stopping the process of adopting, carry out annotating sharp the loosing of horse in advance and reinforce the top coal, guarantee the normal propelling of work plane from the rib side according to the broken situation of work plane top coal.
--networking--is played supporting (anchor pole, anchor cable) and--is tried to stop people from fighting each other and--draw afterwards the scraper-trough conveyer grouting and reinforcing work plane top coal that--pushes away preceding slide--in coal cutting.
(3) stop adopting beginning 14.5～17.5m position pushing and sliding and do not draw support, the coal cutting four blade, a beginning pushing and sliding do not move frame, and mining height is controlled at 3.5m, adopts double-level-metal net+W steel band+anchor pole+anchor cable to hang H shaped steel shack+combination cable bolting machine road top board+11
#Mining i beam, row's spacing of anchor pole is 800 * 875mm.Cut three cutter coals, last not pushing and sliding of cutter makes support front-axle beam termination be not less than 3.0m apart from the rib distance, reserve one and remove device channels, from bracket base to rib 5700mm.Above the machine road, reach forestope then and play three row's combination anchor cables combination anchor cables, row's spacing is 1.6 * 5.25m interlaced arrangement.
After stopping adopting the float coal of work plane is cleaned out, made a call to three row's wall supporting anchor poles at working face wall, lay the single-layer metal net, anchor pole row spacing is 1000 * 1000mm, array pitch top board 400mm, 1400mm, 2400 mm.Between work plane machine road and rib, beat the anchor cable H shaped steel shack then, i iron length is 3500mm, and vertical working face wall arranges that every i iron is played three anchor cables, and anchor cable uses the steel strand of 8300mm.The spacing of i iron is 1.75m.And install row's hydraulic prop (monomer column props up below steel I-beam) in position apart from rib 0.3m; Stop adopting the back and between the back timber of every support and seat-box, install the pin that four diameters are not less than 180mm.Simultaneously the tip position end to end of support with timber each make a call to a grillage safeguard about the top board of termination.
Before removing hydraulic support, with all monomer columns of head end head all with pin for, begin to remove frame work then.Utilize the shield support supporting by removing supporters rear portion top board, whenever remove one and install five groups of band cap-piece posts, every group of 2 pins in its space; Group is 1m with the group spacing, removes in the process like roof cracking, when pressure is big as returning; Can beat grillage or increase pin quantity, whenever withdraw 5 and make a call to a grillage.
Claims (1)
1. the ultra thick coal bed fully mechanized weight equipment safety of putting of labyrinth is removed the method for removing, comprise stop adopting supporting, remove remove during roof timbering and remove and remove route, it is characterized in that:
Remove and remove route
(1) remove through the assistant conveyance crossheading and remove transit route: work plane-assistant conveyance crossheading-assistant conveyance crossheading fortune lane-secondary footrill-stock ground of detouring-assist,
(2) remove through the belt crossheading and remove transit route: work plane-belt crossheading-return airway-auxilliary fortune lane-stock ground;
Stop adopting supporting method
(1) stop adopting beginning 0～5m and above the back timber of support, begin to lay the individual layer diamond mesh, whenever cut a cutter and carry out lapping networking,
(2) stop adopting beginning 5～14.5m and above the back timber of support, lay the two-tier rhombic wire lath, whenever cut a cutter coal and carry out lapping networking in support front-axle beam termination and on the coal of top, play row's bolt support, mining height remains on 3.5m; Row's spacing 800mm * 1750mm, and add the W steel band of model and lay the two-tier rhombic wire lath, steel band length is 3.8m; Per two cutter coals carry out the long anchor cable of a row 8.3m and add the supporting of steel supporting plate; Supporting plate is 300 * 300 * 16mm; Row's spacing 1600mm * 1750mm; Behind supporting two row, third and fourth, five rows adopt anchor cables to hang steel I-beam to carry out supporting, i iron length is that every i iron of 3.3m is played three anchor cables and carried out supporting; Anchor pole and anchor cable interlaced arrangement, anchor pole adopts Ф 22 * 2500mm, and anchor cable adopts the steel strand of Ф 17.8 * 8300mm, and the W steel band of model is 3800 * 150 * 3mm,
(3) stop adopting beginning 14.5～17.5m position pushing and sliding and do not draw support, the coal cutting four blade, a beginning pushing and sliding do not move frame, and mining height is controlled at 3.5m, adopts double-level-metal net+W steel band+anchor pole+anchor cable to hang H shaped steel shack+combination cable bolting machine road top board+11
#Mining i beam, row's spacing of anchor pole is 800 * 875mm, cuts three cutter coals; Last not pushing and sliding of cutter; Make support front-axle beam termination be not less than 3.0m apart from the rib distance, reserve one and remove device channels, distance is 5700mm from the bracket base to the rib; Above the machine road, reach forestope then and play three row's combination anchor cables, row's spacing is 1.6 * 5.25m interlaced arrangement;
Remove remove during the roof timbering method
Before removing hydraulic support, with all monomer columns of termination all with pin for, begin to remove frame work then,
Utilize the shield support supporting by removing supporters rear portion top board, whenever remove one and install five groups of band cap-piece posts, every group of 2 pins in its space; Group is 1m with the group spacing, removes in the process like roof cracking, when pressure is big as returning; Can beat grillage or increase pin quantity, whenever withdraw 5 and make a call to a grillage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106166229A CN102094675B (en) | 2010-12-31 | 2010-12-31 | Safe moving and withdrawing method of complex-structured thick coal seam fully mechanized heavy equipment |
Applications Claiming Priority (1)
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| CN102392667B (en) * | 2011-10-19 | 2013-07-03 | 山东新巨龙能源有限责任公司 | Fast installation method of ten-million-ton scale fully mechanized caving face equipment |
| CN102373953B (en) * | 2011-10-24 | 2014-02-26 | 山西晋城无烟煤矿业集团有限责任公司 | Construction-bypass moving technique of fully-mechanized coal face |
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| CN110424998B (en) * | 2019-08-15 | 2020-08-28 | 李洪彪 | Withdrawal process for fully mechanized mining face under extremely-close coal seam goaf |
| CN112727509B (en) * | 2020-10-28 | 2023-06-20 | 库车县科兴煤炭实业有限责任公司 | Anchor net rope supporting method and structure for large mining height fully-mechanized mining support withdrawing channel of thick coal seam |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4176884A (en) * | 1977-02-03 | 1979-12-04 | Gewerkschaft Eisenhutte Westfalia | Anchoring apparatus for a mining installation |
| US4228508A (en) * | 1977-04-01 | 1980-10-14 | Bergwerksverband Gmbh | Automatic longwall mining system and method |
| CN1792673A (en) * | 2006-01-04 | 2006-06-28 | 煤炭科学研究总院太原分院 | Explosion-proof support transporting vehicle for coal mine |
| CN101349159A (en) * | 2008-08-23 | 2009-01-21 | 山西焦煤集团有限责任公司 | Method of single channel railless plastic core-rubber-tire vehicle back withdrawing fully-mechanized mining working face |
| CN101929346A (en) * | 2010-08-07 | 2010-12-29 | 山西东华机械有限公司 | Hydraulic bracket assembling and disassembling machine with supporting upright column |
-
2010
- 2010-12-31 CN CN2010106166229A patent/CN102094675B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4176884A (en) * | 1977-02-03 | 1979-12-04 | Gewerkschaft Eisenhutte Westfalia | Anchoring apparatus for a mining installation |
| US4228508A (en) * | 1977-04-01 | 1980-10-14 | Bergwerksverband Gmbh | Automatic longwall mining system and method |
| CN1792673A (en) * | 2006-01-04 | 2006-06-28 | 煤炭科学研究总院太原分院 | Explosion-proof support transporting vehicle for coal mine |
| CN101349159A (en) * | 2008-08-23 | 2009-01-21 | 山西焦煤集团有限责任公司 | Method of single channel railless plastic core-rubber-tire vehicle back withdrawing fully-mechanized mining working face |
| CN101929346A (en) * | 2010-08-07 | 2010-12-29 | 山西东华机械有限公司 | Hydraulic bracket assembling and disassembling machine with supporting upright column |
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