CN102086769A - Method for retracting hydraulic support by utilizing four shield supports - Google Patents
Method for retracting hydraulic support by utilizing four shield supports Download PDFInfo
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- CN102086769A CN102086769A CN 201010604467 CN201010604467A CN102086769A CN 102086769 A CN102086769 A CN 102086769A CN 201010604467 CN201010604467 CN 201010604467 CN 201010604467 A CN201010604467 A CN 201010604467A CN 102086769 A CN102086769 A CN 102086769A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000004080 punching Methods 0.000 claims description 8
- 239000000178 monomer Substances 0.000 claims description 3
- 238000006748 scratching Methods 0.000 claims description 2
- 230000002393 scratching effect Effects 0.000 claims description 2
- 238000010009 beating Methods 0.000 abstract 1
- 230000008093 supporting effect Effects 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- 230000009184 walking Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The invention discloses a method for retracting a hydraulic support by utilizing four shield supports, comprising the following steps: arranging a first shield support, a second shield support, a third shield support and a fourth shield support in a triangular area of a roadway; retracting a core-pulling support, and beating a puncturing chock at the position of the original core-pulling support after the core-pulling support is moved away; retracting a side rack; when retracting the side rack, dropping off the side rack firstly, connecting and pushing against the side rack above the top beam of the third shield support; and putting up a wooden pole in the fourth shield support. Compared with the prior art, using the technical scheme provided by the invention, the roof leakage times of the triangular area is reduced, a top plate of the triangular area is effectively controlled, and the safe and rapid retracement is realized.
Description
Technical field
The present invention relates to a kind of work plane security maintenance technology, relate in particular to a kind of four shield supports that utilize and return the method for removing hydraulic support.
Background technology
For 6.3 meters and above large-mining-height working surface, need the support of hydraulic support usually.But return when removing at hydraulic support, because the empty top area in channel height, width and trigonum is bigger, hydraulic support returns removes the bigger potential safety hazard of existence.
As shown in Figure 1, at present shield support returns and removes that to adopt commonplace technology be that returning of three shield supports 1,2,3 removed technology.Adopt existing three shield supports to return and remove technology, when the large-mining-height working surface hydraulic support is removed for 10 times, the empty top area in trigonum is big, easy care not, empty end face needs a large amount of round log supportings usually, and the height of general round log is difficult to satisfy trigonum supporting requirement, therefore is easy to generate the net bag, leaks the top.And.Support materials such as the round log of this rack restoring processes expend, sleeper are a lot, labor strength is also very big, are difficult to also realize that returning fast of hydraulic support remove.
Therefore, be necessary to design a kind of novel rack restoring method, to overcome the defective of prior art.
Summary of the invention
At the defective of prior art, it is littler to the purpose of this invention is to provide a kind of empty top area in trigonum that makes, and the Working rack of more saving support material returns the method for removing.
Provided by the inventionly utilize four shield supports to return the method for removing hydraulic support to may further comprise the steps: a. is arranged on first shield support, second shield support, the 3rd shield support and the 4th shield support in the trigonum in tunnel, wherein, first shield support is apart from rib first preset distance, front-axle beam top and to take out heart frame top vertical; Second shield support is vertical with frame top, limit apart from rib second preset distance, front-axle beam top; The 3rd shield support is apart from the edge of second shield support the 3rd preset distance and the 3rd shield support front-axle beam hanging with the Working rack that remains to be removed; The 4th shield support is near the 3rd shield support and apart from limit frame the 4th preset distance; B. return to remove and take out heart frame, and after taking out heart frame and removing, put and lay the punching grillage taking out heart chord position originally; C. return and remove the limit frame,, fall the limit frame earlier, the 3rd shield support back timber is connect the top above the frame of limit, prop a pin in the inboard of the 4th shield support returning when removing the limit frame.
Preferably, first shield support is apart from rib 200mm, and the front-axle beam top is with to take out heart frame top vertical; Second shield support is vertical with frame top, limit apart from rib 800-1000mm, front-axle beam top; The 3rd shield support apart from the second shield support 600-800mm and with force piece front-axle beam hanging; The 4th shield support is near the 3rd shield support and apart from limit frame 300mm.
Preferably, in step b, outside the punching grillage, lay and protect the buttress pin.
Preferably, in step b, lay two in the punching grillage outside and protect the buttress pin.
Preferably, in step c, return at the limit frame and to remove to turn to the time, utilize the push-and-pull head of the 3rd shield support to push away described limit frame, to avoid described limit frame and the 3rd shield support, the 4th shield support scratching.
Preferably, described method also comprises: d. detects the pressure of top board, when roof pressure surpasses scheduled pressure value, lays band and emits monomer, sinks with the front top plate that prevents the 4th shield support.
Preferably, described method also comprises: move the position of first shield support, second shield support, the 3rd shield support and the 4th shield support, repeating step a withdraws next secondary frame and takes out heart frame to step c.
Preferably, when recalling any one Working rack, Working rack is walked along support big foot hole line.
With respect to prior art, adopt technical scheme of the present invention, reduce the trigonum and leaked the top number of times, controlled the trigonum top board effectively.And, also realized safety, returned and remove fast.
Description of drawings
Fig. 1 is the work plane schematic layout pattern that three shield supports return the method for removing in the prior art;
Fig. 2 is that four shield supports that utilize of a kind of specific embodiment of the present invention return the work plane schematic layout pattern of the method for removing;
Fig. 3 is that four shield supports that utilize of a kind of specific embodiment of the present invention return the schematic diagram of the method for removing;
Fig. 4 is that four shield supports that utilize of a kind of specific embodiment of the present invention return the schematic diagram of the method for removing
The specific embodiment
As shown in Figure 2, the rack restoring method of utilizing four shield supports of a kind of specific embodiment of the present invention and the Working rack of workspace, the artwork of shield support.
All working support 100 is shown in Fig. 2,3, and the Working rack of the most close trigonum 300 is a limit frame 101, near the Working rack of limit frame 101 for taking out heart frame 102.When withdrawing from Working rack, at first withdraw from and take out heart frame 102, withdraw from limit frame 101 then; Withdraw from the next one then and take out heart frame 104, withdraw from next limit frame 103; ... withdraw from successively, until withdrawing from all working support 100.
Working rack 100 is a hydraulic support, it should be appreciated by those skilled in the art that described hydraulic support have rising with roof supporting, descend to withdraw from the structure of supporting and walking.
In the rack restoring method of utilizing four shield supports of present embodiment, may further comprise the steps:
At first, first shield support 201, second shield support 202, the 3rd shield support 203 and the 4th shield support 204 are arranged in the trigonum 300 in tunnel.
Wherein, first shield support 201 is vertical with the top of taking out heart frame 102 apart from the front-axle beam top of rib 301 first predetermined distance d 1, the first shield support 201.And, as shown in Figure 2, the position that the front-axle beam top correspondence of first shield support 201 is taken out heart frame 102.
The 3rd shield support 203 keeps the 3rd predetermined distance d 3 apart from second shield support 202, and, the front-axle beam hanging of the edge of the 3rd shield support 203 and the Working rack 100 that remains to be removed.
The 4th shield support 204 is provided with near the 3rd shield support 203 and the 4th shield support and limit frame 101 maintenances the 4th predetermined distance d 4.The 4th shield support 204 is arranged in the trigonum 300, has obviously increased the supporting safety in the trigonum 300.
Described first preset distance, second preset distance, the 3rd preset distance and the 4th preset distance are determined according to the actual conditions of concrete work plane and workspace.Preferably, in the present embodiment, first shield support 201 is apart from rib 200mm, second shield support 202 is apart from rib 800-1000mm, the 3rd shield support 203 and second shield support 202 be apart from 600-800mm, the 4th shield support 204 near the 3rd shield support setting and with limit frame 101 apart from 300mm.
When each shield support is set, preferably, move the 3rd shield support to position at twice earlier, wherein after drawing the 3rd shield support for the first time, move the 4th shield support to position; Move second shield support, first shield support to position in order respectively then.
In second step, return to remove and take out heart frame 102.Remove when taking out heart frame returning, to utilize the space that forms between first shield support 201, second shield support 202, will take out heart frame 102 and remove.
After taking out heart frame 102 and removing, put and lay the punching grillage taking out heart chord position originally, to increase supporting to top board.Preferably, lay in the outside of described punching grillage and to protect the buttress pin, for example, protect the buttress pin and further increase the supporting safety by laying two.And, preferably, at the support hinge beam Zhi Yigen of place pin.
The 3rd step, as shown in Figure 4, return and to remove limit frame 101, returning when removing limit frame 101, first trailing edge frame 101 is so that limit frame 101 can be removed.Then, the 3rd shield support 203 back timbers are connect the top above the frame of limit, as shown in Figure 3.The 3rd shield support 203 is nearest apart from limit frame 101, can connect the top easily to realize supporting.In the present embodiment, support pulled out 1.75 meters forward after, the 3rd shield support 203 back timbers are connect the top above limit frame 101.And, prop a pin in the inboard of the 4th shield support 204, to dwindle the empty top area in trigonum, strengthen safety to the trigonum supporting.
It will be understood by those skilled in the art that the tail boom of described limit frame 101 is easy to collide with the 3rd, the 4th shield support when turning around to turn to (shown in Fig. 4 dotted line) at limit frame 101.Therefore, the push-and-pull head of using the 3rd shield support with limit frame 101 forward (promptly to the direction of removing Working rack) push away, thereby avoid that limit frame 101 and the 3rd, the 4th shield support scratch, collision.
Preferably, can monitor coming the pressure cycle of top board in real time, promptly monitor the pressure condition of top board.Before pressing, can lay the interlocking grillage, crush and leak the top to prevent.More preferably, when roof pressure surpasses scheduled pressure value, lay band and emit monomer,, prevent 204 preceding the crushing of the 4th shield support to increase the supporting area.
It should be noted that when recalling any one Working rack Working rack is along 310 walkings of support big foot hole line.
Be described by above-mentioned preferred embodiment although it will be understood by those skilled in the art that the present invention, its way of realization is not limited to above-mentioned embodiment.Should be realized that under the situation that does not break away from purport of the present invention those skilled in the art can make different variations and modification to the present invention.
Claims (8)
1. one kind is utilized four shield supports to return the method for removing hydraulic support, it is characterized in that described method comprises:
A. first shield support, second shield support, the 3rd shield support and the 4th shield support are arranged in the trigonum in tunnel, wherein, first shield support is apart from rib first preset distance, front-axle beam top and to take out heart frame top vertical; Second shield support is vertical with frame top, limit apart from rib second preset distance, front-axle beam top; The 3rd shield support is apart from the edge of second shield support the 3rd preset distance and the 3rd shield support front-axle beam hanging with the Working rack that remains to be removed; The 4th shield support is near the 3rd shield support and apart from limit frame the 4th preset distance;
B. return to remove and take out heart frame, and after taking out heart frame and removing, put and lay the punching grillage taking out heart chord position originally;
C. return and remove the limit frame,, fall the limit frame earlier, the 3rd shield support back timber is connect the top above the frame of limit, prop a pin in the inboard of the 4th shield support returning when removing the limit frame.
2. method according to claim 1 is characterized in that, first shield support is apart from rib 200mm, and the front-axle beam top is with to take out heart frame top vertical; Second shield support is vertical with frame top, limit apart from rib 800-1000mm, front-axle beam top; The 3rd shield support apart from the second shield support 600-800mm and with force piece front-axle beam hanging; The 4th shield support is near the 3rd shield support and apart from limit frame 300mm.
3. method according to claim 1 and 2 is characterized in that, in step b, lays outside the punching grillage and protects the buttress pin.
4. method according to claim 3 is characterized in that, in step b, lays two in the punching grillage outside and protects the buttress pin.
5. method according to claim 1 is characterized in that, in step c, returns at the limit frame and to remove need turn to the time, utilizes the push-and-pull head of the 3rd shield support to push away described limit frame, to avoid described limit frame and the 3rd shield support, the 4th shield support scratching.
6. method according to claim 1 is characterized in that, described method also comprises: d. detects the pressure of top board, when roof pressure surpasses scheduled pressure value, lays band and emits monomer, sinks with the front top plate that prevents the 4th shield support.
7. method according to claim 1 is characterized in that, described method also comprises: move the position of first shield support, second shield support, the 3rd shield support and the 4th shield support, repeating step a withdraws next secondary frame and takes out heart frame to step c.
8. method according to claim 1 is characterized in that, when recalling any one Working rack, Working rack is walked along support big foot hole line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010604467A CN102086769B (en) | 2010-12-15 | 2010-12-15 | Method for retracting hydraulic support by utilizing four shield supports |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010604467A CN102086769B (en) | 2010-12-15 | 2010-12-15 | Method for retracting hydraulic support by utilizing four shield supports |
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| CN102086769A true CN102086769A (en) | 2011-06-08 |
| CN102086769B CN102086769B (en) | 2012-09-05 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444416A (en) * | 2011-12-24 | 2012-05-09 | 中国煤炭科工集团太原研究院 | Fully mechanized mining face hydraulic support beam-type retracting device |
| CN102900444A (en) * | 2012-09-10 | 2013-01-30 | 山西晋城无烟煤矿业集团有限责任公司 | Improved withdrawing technology for hydraulic supports on fully mechanized coal face |
| CN105019927A (en) * | 2015-07-31 | 2015-11-04 | 山东能源重装集团鲁南装备制造有限公司 | Hydraulic support withdrawing system and method |
| WO2015196872A1 (en) * | 2014-06-25 | 2015-12-30 | 巨峰 | Method for removing hydraulic support for solid filling coal mining |
| CN105569702A (en) * | 2016-01-11 | 2016-05-11 | 安徽理工大学 | Non-pitwood withdrawing method for hydraulic supports during fully mechanized face withdrawing |
| CN105736044A (en) * | 2013-03-15 | 2016-07-06 | 中国矿业大学 | Rapid withdrawing method for fully mechanized coal mining face equipment of steep coal seam |
| CN105863691A (en) * | 2016-05-04 | 2016-08-17 | 淮南矿业(集团)有限责任公司 | Fully mechanized coal mining face support retracting roof supporting construction method |
| CN112412515A (en) * | 2020-11-23 | 2021-02-26 | 中国矿业大学 | Frame-removing supporting method for self-moving type full-shield crushing top plate |
| WO2021093122A1 (en) * | 2019-11-15 | 2021-05-20 | 山东科技大学 | Method for reducing withdrawal roadway roof pressure at end of coal face mining |
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| DE3641544C1 (en) * | 1986-12-05 | 1988-03-03 | Nlw Foerdertechnik Gmbh | Method and apparatus for withdrawing the shields from a face in coal mines |
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| CN101705821A (en) * | 2009-10-29 | 2010-05-12 | 太原理工大学 | Method for controlling roof caving under condition of hardroof in coal mining |
| CN101845958A (en) * | 2010-06-11 | 2010-09-29 | 北京天地华泰采矿工程技术有限公司 | Fully mechanized coal face bracket withdrawing method and withdrawing bracket traction spring exerciser |
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2010
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Patent Citations (6)
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| DE3641544C1 (en) * | 1986-12-05 | 1988-03-03 | Nlw Foerdertechnik Gmbh | Method and apparatus for withdrawing the shields from a face in coal mines |
| CN2934574Y (en) * | 2006-07-21 | 2007-08-15 | 兖州煤业股份有限公司 | Comprehensive mechanical work face hydraulic prop retreating device |
| 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 |
| CN101666230A (en) * | 2009-10-09 | 2010-03-10 | 耿学文 | Coal mining method of lengthened front-beam fully-mechanized mining and fully-mechanized top coal carving of three-soft coal seam and equipment |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444416A (en) * | 2011-12-24 | 2012-05-09 | 中国煤炭科工集团太原研究院 | Fully mechanized mining face hydraulic support beam-type retracting device |
| CN102444416B (en) * | 2011-12-24 | 2014-07-16 | 中国煤炭科工集团太原研究院 | Fully mechanized mining face hydraulic support beam-type retracting device |
| CN102900444A (en) * | 2012-09-10 | 2013-01-30 | 山西晋城无烟煤矿业集团有限责任公司 | Improved withdrawing technology for hydraulic supports on fully mechanized coal face |
| CN102900444B (en) * | 2012-09-10 | 2015-03-18 | 山西晋城无烟煤矿业集团有限责任公司 | Improved withdrawing technology for hydraulic supports on fully mechanized coal face |
| CN105736044A (en) * | 2013-03-15 | 2016-07-06 | 中国矿业大学 | Rapid withdrawing method for fully mechanized coal mining face equipment of steep coal seam |
| WO2015196872A1 (en) * | 2014-06-25 | 2015-12-30 | 巨峰 | Method for removing hydraulic support for solid filling coal mining |
| US10036252B2 (en) | 2014-06-25 | 2018-07-31 | China University Of Mining And Technology | Method for removing hydraulic support for solid filling coal mining |
| CN105019927A (en) * | 2015-07-31 | 2015-11-04 | 山东能源重装集团鲁南装备制造有限公司 | Hydraulic support withdrawing system and method |
| CN105569702A (en) * | 2016-01-11 | 2016-05-11 | 安徽理工大学 | Non-pitwood withdrawing method for hydraulic supports during fully mechanized face withdrawing |
| CN105863691A (en) * | 2016-05-04 | 2016-08-17 | 淮南矿业(集团)有限责任公司 | Fully mechanized coal mining face support retracting roof supporting construction method |
| WO2021093122A1 (en) * | 2019-11-15 | 2021-05-20 | 山东科技大学 | Method for reducing withdrawal roadway roof pressure at end of coal face mining |
| CN112412515A (en) * | 2020-11-23 | 2021-02-26 | 中国矿业大学 | Frame-removing supporting method for self-moving type full-shield crushing top plate |
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| Publication number | Publication date |
|---|---|
| CN102086769B (en) | 2012-09-05 |
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