CN105649672B - The integral moving method of elevating conveyor, leather belt head during the small removal of home of high working face - Google Patents
The integral moving method of elevating conveyor, leather belt head during the small removal of home of high working face Download PDFInfo
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- CN105649672B CN105649672B CN201511006344.4A CN201511006344A CN105649672B CN 105649672 B CN105649672 B CN 105649672B CN 201511006344 A CN201511006344 A CN 201511006344A CN 105649672 B CN105649672 B CN 105649672B
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- 239000010985 leather Substances 0.000 title claims abstract description 85
- 230000003028 elevating effect Effects 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000003245 coal Substances 0.000 claims abstract description 23
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- 239000000178 monomer Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000013519 translation Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000005065 mining Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 241000282326 Felis catus Species 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000013016 learning Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Structure Of Belt Conveyors (AREA)
Abstract
The present invention relates to the mobile resettlement of underground coal mine elevating conveyor, elevating conveyor, the integral moving method of leather belt head during specially a kind of small removal of home of high working face.Solve high working face elevating conveyor and belt feeder removal of home under current colliery and waste time and energy, the technical problem that working strength is big.At present for large-scale mine main, large-scale equipment is the configuration of its standard, and equipment is moved in relatively short distance, it is not appropriate for transporting in place after taking apart, then is re-assemblied, is otherwise wasted time and energy very much, and safety cannot be ensured, considerably increase operating risk.But three kinds of innovations of the present invention such as small removal of home of elevating conveyor, the overall leaping over obstacles of leather belt head and belt feeder rapid belt replacing all make use of the power of machine in itself surely to be filled, not only ensured in safety, and substantially increase steady dress efficiency, produce coal for the production of fully mechanized mining and won valuable time, it is believed that these innovations are worth most of mines to use for reference and learn.
Description
Technical field
The present invention relates to the mobile resettlement of underground coal mine elevating conveyor, reprinted during specially a kind of small removal of home of high working face
The integral moving method of machine, leather belt head.
Background technology
Datong Coal Group Company Jin Hua palaces ore deposit large-mining-height working surface is in South Mountain well 12#Layer, with the propulsion of working face, 110#O'clock to 85#
250 meters of coal seams of point are weakened region, and dirt band accounts for adopting 4th/1 to five/2nds of thickness, and dirt band is all hard sandstone,
Unsuitable normal exploitation, if with coal-winning machine using cutting by the way of rock hardness crosses, the not only cut caused by cutting power is excessive
Motor damage, wastes a large amount of picks, and propulsion progress slows down.The fltting speed of working face is sometimes only normal to produce the eight of class
/ mono-, and the gangue amount of institute's output is excessive, considerably increases washing cost.Determined by ore deposit research, decision is beaten again
Open-off cut carries out small removal of home.
At the same time, minister's degree of high working face is 850m belt feeder due to serious wear, it is necessary to which belt is carried out more
Change, belt total length is about 1700m up and down, in order to not influence normally to produce coal, safely and fast can finish changing belt, allow belt
Machine is run well as early as possible, is the key for ensureing normally to produce.
When the advance of the face is close to when stopping adopting line, in order to increase the recovery of resource, determined after being calculated through ore deposit research, will
Stop adopting line and delimit again, working face is more late than original plan to stop adopting 30 meters, and leather belt head is exactly in the position of this 30 meters of centres, institute
With must surely dress just can guarantee that and normally produce coal that the leather belt head position surely set again is across panel belt again by leather belt head
Position, how quickly and safely leather belt head can surely be installed again, be to concern quickly to put into production, it is ensured that normally produce coal
Key factor.
The content of the invention
The present invention wastes time and energy to solve high working face elevating conveyor and belt feeder removal of home under current colliery, the skill that working strength is big
There is provided the integral moving method of elevating conveyor, leather belt head during a kind of small removal of home of high working face for art problem.
The present invention is realized using following technical scheme：Elevating conveyor during a kind of small removal of home of high working face, leather belt head
Integral moving method, including allow elevating conveyor to carry out the method that the mode of integral translation is migrated：Reprinting drive end unit or so two
A frame hydraulic support is respectively arranged in side, and reprinting drive end unit is withstood using the passage cylinder of hydraulic support；When elevating conveyor needs to translate forward
When, two hydraulic supports connect top, gradually stretch out passage cylinder, promote elevating conveyor to advance；It is located at respectively using two simultaneously and is reprinted
The passage oil cylinder of head both sides promotes belt tail, and the head of passage oil cylinder is connected with belt tail, the afterbody and monomer of passage oil cylinder
Post footwear are connected, and monomer column footwear are clashed by hydraulic single prop and top plate and are fixed；Stretched when the secondary cylinder of passage oil cylinder
When, before belt tail is just pushed away, when passage oil cylinder is reached, belt tail is also just in place；In conjunction with utilizing hydraulic support
With ride on belt tail reprint head on oily motor-car thrust, before just elevating conveyor is integrally pushed away.
When the obstacle of leap in need is run into front of leather belt head, the overall shifting for carrying out leather belt head with the following method is adopted
It is dynamic：Step（a）, put up a bridge using multiple I-steel above the barrier in front of leather belt head, the width of bridge is overall wide for leather belt head
1.5 times of degree；Step（b）, in front of leather belt head be provided with winch, be used as traction power；From the top position of leather belt head to belt
The destination locations that head will surely be set start, and just make a call to two groups every two meters and play ring rope；When construction, first leather belt head
Two motor reducers, which are removed, is placed into specified location, afterwards using four groups cats being suspended near leather belt head front end
Leather belt head front portion is carried out inclined pull hoisting by four chain blocks on rope, while making leather belt head with the haulage cable cooperation of winch
Reach；As chain block chain length contracts shorter and shorter, leather belt head is vertically sling, and hinders the advance of leather belt head, this
Shi Chongxin hangs chain block, i.e., be sequentially suspended on adjacent first four groups play ring rope four groups and rise on ring rope, continue to keep oblique
Drawing mode, until chain block comes back to vertical position, successively back and forth, until leather belt head reaches specified location, puts down belt
Head；
During whole journeys are drawn, winch will keep the close fit with chain block, bit by bit by belt
Head traction is in place.
The obstacle that the leather belt head is crossed over is to move towards vertical panel belt with leather belt head；When leather belt head reaches specified location
Afterwards, after motor reducer is reinstalled, a drag conveyor is surely set in the side of leather belt head, and in working face belt
Top is installed above a gear coal brush, the coal " scraping " that will be transported out to drag conveyor, so that will by drag conveyor
Coal Transport is to panel belt.
After leather belt head installation, in addition to the method for belt feeder rapid belt replacing：New belt is all accomplished fluently into card
Son, and transport to underground, it is first that old belt is therefrom separated afterwards, by the front end of new belt and the front end of old belt gap
Connection, wherein three groups of H framves of tie point will remove, and start belt feeder, so using the power of belt feeder, gradually operate belt
Come, with the operation of belt, old one section of belt one section is gradually resigned from office, and new belt is gradually pulled on, until by new belt
Head and the tail connection, old belt backed off completely, and belt replacing is completed.
The integral moving of the elevating conveyor whole three day time faster than traditional approach, the integral moving of leather belt head is than tradition
Take apart after carry out steady dress again and save two day time, and the quick-replaceable of belt also saves two day time, thus for
Fully mechanized mining totally saves seven day time, it may be said that very big economic benefit is generated for colliery, according to the production of average high working face
Ability is calculated, and the yield of one day is in 6000t or so, then seven day time was exactly 42000t, 168,000,000 yuan of direct economic benefit.
Overall performance compares
Three innovations of the present invention（The small removal of home of elevating conveyor, the overall leaping over obstacles of leather belt head, belt feeder quick-replaceable skin
Band）Task is not only safely and efficiently completed, and the labor intensity of workman's per tour is greatly reduced, while most importantly sending out
The advantage of machine in itself has been waved, from traditional all artificial dismounting, has become man-machine cooperation, the form that machine is automatically performed.
Carrying to large scale equipment in the past, be all one take apart successively after, carry out entrucking, then transport to after destination again
Installed, such a method is only suitable for the carrying of relatively long distance.But for short-haul operation, overall carry just has been given play to
Its safety, quick advantage is carried out, has also substantially reduced the labor intensity of workman simultaneously, when can strive for production to greatest extent
Between, and also provide good technical guarantee to safety.
Prospect for promotion and application of the present invention
At present for large-scale mine main, large-scale equipment is the configuration of its standard, and equipment is entered in relatively short distance
Row resettlement, is not appropriate for transporting in place after taking apart, then is re-assemblied, and otherwise wastes time and energy very much, and unsafe
To guarantee, operating risk is considerably increased.But three kinds of above-mentioned innovations all make use of the power of machine in itself surely to be filled, no
But ensured in safety, and substantially increase steady dress efficiency, be that the production of fully mechanized mining is produced coal and won valuable time,
Believe that these innovations are worth most of mines to use for reference and learn.
Brief description of the drawings
Fig. 1 working face elevating conveyor dimension plane schematic diagrames.
Fig. 2 hydraulic supports and passage oil cylinder coordinate the schematic diagram that elevating conveyor and belt tail advance.
The arrangement schematic diagram that Fig. 3 leather belt heads are crossed over before the belt of panel.
Schematic diagram is arranged in bridging and a ring rope when Fig. 4 leather belt heads cross over panel belt.
Fig. 5 leather belt head bulk migration lifting method schematic diagrames.
Gear coal brush and drag conveyor arrangement schematic diagram after the completion of the migration of Fig. 6 leather belt heads.
Fig. 7 belt feeders change the operation schematic diagram of belt.
1- hydraulic supports, 2- oil motor-cars and reprinting head, 3- passage oil cylinders, 4- belt tails, 5- monomer column footwear, 6- belts
Head, 7- leather belt head motor reducers, 8- stops to adopt line always, and 9- newly stops to adopt line, and 10- panels belt lane, 11- I-steel, 12- plays cat
Rope, 13- double-speed winch, 14- haulage cables, 15- chain blocks, 16- gear coal brushes, 17- drag conveyors, 18- thongs flat
Wooden handcart, 19- belt lacers, 20- crossheading tracks.
Embodiment
1st, the integral moving of elevating conveyor
The elevating conveyor model SZE1000/375 of the working face of 402 panel of South Mountain well 8206, i.e. trough internal diameter are 1000mm,
Power of motor is 375KW, and total length is 34.45m, its planar dimension schematic diagram such as Fig. 1.
The elevating conveyor total length 34.5m, gross mass nearly 40t, if all taken apart, are surely filled, count motor reducer in,
13-15 cars, then steady dress elevating conveyor again must be filled, is not a simple thing, and also belt tail carries out entrucking simultaneously
Transport.Above-mentioned produced problem must be solved, it is ensured that elevating conveyor can quickly and safely reach specified location, so as to ensure comprehensive
The normal of mining face puts into production.
By carefully investigating calculating, determine that the mode for allowing elevating conveyor to carry out integral translation is migrated, in order to be able to
Enough elevating conveyor is preferably moved integrally, increase the translational speed of elevating conveyor, two frame ZZS13000/ are arranged reprinting drive end unit
The hydraulic support 1 of 28/60 type is coordinated, and is withstood reprinting drive end unit using the push unit of hydraulic support 1, is so just made reprinting
Machine entirety stress is bigger, and resettlement is more prone to, at the same can also make face end support with elevating conveyor it is quick in place, save and remove branch
The process of frame.When elevating conveyor is translated forward, two hydraulic supports connect top, gradually stretch out passage cylinder, promote elevating conveyor to advance
（Such as Fig. 2）.
Next is two passage oil cylinders 3 of elevating conveyor side, plays the key effect for promoting elevating conveyor, first oil cylinder
Head is connected with belt tail 4, and afterbody is connected with monomer column footwear 5, is clashed and is fixed by hydraulic monomer and top plate.Work as passage oil cylinder
When 3 secondary cylinder is stretched, before belt tail 4 is just pushed away, because elevating conveyor is more many than the weight of belt tail 4, so elevating conveyor is not
Can and then it move.When passage oil cylinder 3 is reached, belt tail 4 is also just in place（Such as Fig. 2）, and head is reprinted in belt tail
Track on " ride ", so using elevating conveyor oily motor-car and branch hydraulic pressure frame thrust, before just elevating conveyor is integrally pushed away.
Due to passage oil cylinder, once maximum extension elongation is 2.5m, and therefore, the distance that belt tail once advances is also 2.5m,
Such as Fig. 2.
One class, which averagely elapses cylinder, can shrink ten times or so, and by the class of three or eight systems, the distance advanced for average one day is 75m,
As long as ten round classes can be in place（It is actual only to have used the whole three day time）, dismounted than original plan, then reconfigured, totally
It is advanced by three day time.
2nd, the integral translation of leather belt head
According to on-site actual situations, ore deposit determine by high working face stop adopt line and delimit again, it is more late than original plan to stop adopting 30 meters,
Position relationship such as Fig. 3 of leather belt head position relationship originally and panel belt.
Traditional leather belt head arrangement is all that leather belt head raised into the top that coal carrying roller is surely located at panel belt, and present
Stop adopting the position that line has been in gateway belt head, the distance that the old and new stop adopting line is 30m, so for normal produce coal,
The position of leather belt head must surely be set again, if it will open and be re-assemblied again per assembling and dismantling, certainly will waste substantial amounts of
Time, and transport distance is nor very long, so taking the overall mode carried to be best.
It is overall to carry the problem of being related to leather belt head entirety across panel belt, in order to not influence the normal fortune of panel belt
Turn, use 11#I-steel is put up a bridge, and width is 1.5 times of the overall width of leather belt head 6.The two ends of I-steel 11 and ground cash enter
Row is fixed, and is slided when preventing leather belt head 6 from being pulled above, I-steel is fallen on the belt of panel, caused the accident.
Next to that surely set 45KW double-speed winch 13 at entrance to a lane, as the power of traction, and double-speed winch 13
Rope footpath can not be less than 1 inch（Such as Fig. 4）.
Since the destination locations that the top position of leather belt head 6 is surely set to new leather belt head, just two groups of liftings are played every two meters
Anchor cable 12, the spacing of four anchor cables is 30cm × 30cm, so as to constitute a square Heave Here.
When specifically construction, first two leather belt head motor reducers 7 are removed and are discharged to specified location, are made afterwards
With four five tons of chain blocks（Jack）Leather belt head front portion is subjected to inclined pull hoisting, rubbing for leather belt head and ground had so both been ensure that
Wipe and reduce, and can coordinate simultaneously with haulage cable makes leather belt head move forward（Such as Fig. 5）.
Fig. 5 is exactly simplified schematic diagram when leather belt head integral lifting is translated forward, as the length of chain block 15 contracts and must got over
When coming shorter, leather belt head 6 certainly will be caused vertically to be sling, the advance of leather belt head is hindered on the contrary, be so accomplished by again
Jack is hung, continues to keep oblique pull mode, until jack comes back to vertical position, successively back and forth, is referred to until leather belt head is reached
Positioning is put.
During whole journeys are drawn, double-speed winch 13 will keep the close fit with jack, bit by bit will
Leather belt head is drawn in place.
After leather belt head reaches specified location, after motor reducer 7 is reinstalled, now the side of leather belt head 6 is also
Need surely to set a model SGZ764/132 types drag conveyor 17 again and upside down the coal that leather belt head is transported out coming and retract
To panel belt（Such as Fig. 6）.
After Fig. 6 is the panel belt that has surely set again, equipment rearranges figure, and drag conveyor 17 is positioned at gateway belt
Work surface side, and install a gear coal brush 16 in upper belt, the coal " scraping " that comes will be transported out to above drag conveyor,
So as to by drag conveyor 17 by Coal Transport to panel belt.
Two day time, and both safety, and laborsaving have only been used in whole leather belt head translation, it may be said that must on be Jin Huagong last years
The model of technological innovation in 1 year.
3rd, the quick-replaceable innovative technology of belt
According to downhole production actual conditions, the minister 850m of high working face one belt needs to change, due to being pressed for time, task
Weight, so more quickly and safely belt replacing can be finished, just into the key of task, but traditional replacing belt side
Method can not meet production needs, therefore, for this subtask, it is necessary to which the replacing technology to belt is innovated, so as to reach fast
Speed is safely completed task.
Conventional belt is all that a roll is transported to underground appointed place with rolling up, and progress is then pulled open respectively with changing, this time belt
Crossheading, so 1700m belts are all just accomplished fluently into belt lacer 19 in workshop, is divided into four flat cars that thong due to being pressed for time
18 transport to underground, first that old belt is therefrom separated afterwards, are attached with new belt, and wherein three groups of H framves of tie point will
Remove, start belt feeder, so using the power of belt feeder, gradually belt gets into smooth, while leather belt head specially has a team
People puts away the old belt ground in good order heap resigned from office（Such as Fig. 7）.
Fig. 7 is the schematic diagram of operation field, with the operation of belt, and old belt is gradually resigned from office, and new belt is gradually
Pulled on belt, such four railway carriages band is only needed to make a call to four road belt lacers in underground just can rapidly change and finished, and is this time appointed
The completion of business, has only just been completed with the time of a class.If obtaining two day time according in the past traditional method is minimum
Whole replacings of this belt could be completed.
So long belt can be changed with so fast speed and finished, still belonged to the first time in the ore deposit history of Jin Hua palaces, it may be said that
It is very safe, quick, satisfactorily complete this subtask, be worth other fraternal mine research learnings.
Integral moving method of the present invention is in my ore deposit South Mountain well 12#402 panel of layer have been carried out, for the peace in colliery
Full production and technological innovation have great meaning, and each single item is all to have striven for valuable time for production, specifically detailed
Describe in detail bright, will not be repeated here.
Claims (5)
1. elevating conveyor, the integral moving method of leather belt head during a kind of small removal of home of high working face, it is characterised in that including allowing reprinting
Machine carries out the method that the mode of integral translation is migrated：A frame hydraulic support is each side arranged reprinting drive end unit, profit
Reprinting drive end unit is withstood with the passage cylinder of hydraulic support；When elevating conveyor needs to translate forward, two hydraulic supports connect top, gradually
Passage cylinder is stretched out, promotes elevating conveyor to advance；It is located at the passage oil cylinder promotion skin for reprinting head both sides respectively using two simultaneously
Magnetic tape trailer, the head of passage oil cylinder is connected with belt tail, and the afterbody of passage oil cylinder is connected with monomer column footwear, and monomer column footwear are by hydraulic pressure list
Pillar body and top plate, which are clashed, to be fixed；When the secondary cylinder of passage oil cylinder is stretched, before belt tail is just pushed away, work as passage
When oil cylinder is reached, belt tail is also just in place；In conjunction with using hydraulic support and riding on reprinting head on belt tail
Oily motor-car thrust, before just elevating conveyor is integrally pushed away；When the obstacle of leap in need is run into front of leather belt head, using such as
Lower method carries out moving integrally for leather belt head：Step（a）, taken using multiple I-steel above the barrier in front of leather belt head
Bridge, the width of bridge is 1.5 times of leather belt head overall width；Step（b）, in front of leather belt head be provided with winch, be used as traction power；
Since the destination locations that the top position of leather belt head to leather belt head will surely be set, just make a call to two groups every two meters and play ring rope；Enter
When row construction, first two motor reducers of leather belt head are removed is placed into specified location, afterwards using being suspended on most
Leather belt head front portion is subjected to inclined pull hoisting close to four groups of leather belt head front end four chain blocks risen on ring ropes, at the same with strand
The haulage cable of car, which coordinates, makes leather belt head move forward；As chain block chain length contracts shorter and shorter, leather belt head is vertical
Sling, hinder the advance of leather belt head, chain block is at this moment hung again, i.e., be sequentially suspended on adjacent first four groups and play ring rope
Four groups are risen on ring rope, continue to keep oblique pull mode, until chain block comes back to vertical position, successively back and forth, Zhi Daopi
Take the lead to reach specified location, put down leather belt head；
During whole journeys are drawn, winch will keep the close fit with chain block, bit by bit lead leather belt head
Guide to position.
2. elevating conveyor, the integral moving method of leather belt head during the small removal of home of high working face as claimed in claim 1, its feature exist
In the obstacle that the leather belt head is crossed over is to move towards vertical panel belt with leather belt head；, will after leather belt head reaches specified location
After motor reducer is reinstalled, a drag conveyor is surely set in the side of leather belt head, and above working face belt
A gear coal brush is installed, the coal " scraping " that comes will be transported out to above drag conveyor, so that by drag conveyor by coal
Transport to panel belt.
3. elevating conveyor, the integral moving method of leather belt head during the small removal of home of high working face as claimed in claim 1 or 2, it is special
Levy and be, after leather belt head installation, in addition to the method for belt feeder rapid belt replacing：New belt is all accomplished fluently into card
Son, and transport to underground, it is first that old belt is therefrom separated afterwards, by the front end of new belt and the front end of old belt gap
Connection, wherein three groups of H framves of tie point will remove, and start belt feeder, so using the power of belt feeder, gradually operate belt
Come, with the operation of belt, old one section of belt one section is gradually resigned from office, and new belt is gradually pulled on, until by new belt
Head and the tail connection, old belt backed off completely, and belt replacing is completed.
4. elevating conveyor, the integral moving method of leather belt head during the small removal of home of high working face as claimed in claim 1 or 2, it is special
Levy and be, every group is played ring rope and include four anchor cables, the spacing of four anchor cables is 30cm × 30cm, composition one is square
Heave Here；The winch is double-speed winch.
5. elevating conveyor, the integral moving method of leather belt head during the small removal of home of high working face as claimed in claim 2, its feature exist
In the hydraulic support model ZZS13000/28/60 types；Drag conveyor model SGZ764/132 types.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511006344.4A CN105649672B (en) | 2015-12-29 | 2015-12-29 | The integral moving method of elevating conveyor, leather belt head during the small removal of home of high working face |
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| CN201511006344.4A CN105649672B (en) | 2015-12-29 | 2015-12-29 | The integral moving method of elevating conveyor, leather belt head during the small removal of home of high working face |
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| CN105649672B true CN105649672B (en) | 2017-08-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108361034B (en) * | 2017-11-24 | 2019-08-30 | 枣庄矿业(集团)付村煤业有限公司 | A kind of order mining large-mining-height working surface is quickly moved technique |
| CN110094223A (en) * | 2019-04-10 | 2019-08-06 | 山西马堡煤业有限公司 | Cooperate monorail crane dedicated unit for large-mining-height working surface hydraulic support withdrawing |
| CN111022423B (en) * | 2019-12-25 | 2022-03-25 | 山东里能鲁西矿业有限公司 | Portable belt tail pulling and moving device |
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| DE10134338A1 (en) * | 2001-07-14 | 2003-01-23 | Pohle & Rehling Gmbh | Transfer block for belt conveyors in underground mine tunnel construction has support frame fixedly connected to crusher through rear beam which serves as alignment device |
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| CN202611759U (en) * | 2012-06-21 | 2012-12-19 | 铁法煤业（集团）有限责任公司晓南矿 | Self-moving belt conveyor tail displacement device |
| CN203362221U (en) * | 2013-07-12 | 2013-12-25 | 徐州矿务集团有限公司 | Pushing device for single-prop face scraper conveyer |
| CN204312130U (en) * | 2014-09-11 | 2015-05-06 | 安徽恒源煤电股份有限公司祁东煤矿 | Rake cash machine, conveyor tail associating automatic moving type device |
| CN204492887U (en) * | 2014-12-23 | 2015-07-22 | 淮北矿业股份有限公司 | Coal mine fully-mechanized mining face elevating conveyor pulling and moving equipment |
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| CN105649672A (en) | 2016-06-08 |
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Effective date of registration: 20190924 Address after: 037000 Yangjiayao Village, Southern Suburb of Datong City, Shanxi Province Patentee after: DATONG COAL MINE TASHAN COAL MINE CO., LTD. Address before: 037003 Shanxi province Datong Xinping Wang School North Patentee before: Datong Coal Mine Group Co., Ltd. |
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