CN104895592A - Fully-mechanized coal mining and caving face support retracement supporting method - Google Patents
Fully-mechanized coal mining and caving face support retracement supporting method Download PDFInfo
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- CN104895592A CN104895592A CN201510276130.2A CN201510276130A CN104895592A CN 104895592 A CN104895592 A CN 104895592A CN 201510276130 A CN201510276130 A CN 201510276130A CN 104895592 A CN104895592 A CN 104895592A
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Abstract
The invention provides a fully-mechanized coal mining and caving face support retracement supporting method. A top plate at the position of a sector zone is originally supported by basic supports, and the basic support to be retraced in a retracement channel is connected with a shield support through a round-link chain and is retraced in a self-movement mode. A wood crib is arranged at the original position of one basic support once the basic support is retraced and is used for supporting the top plate. A single body is arranged nearby the wood crib and is used for auxiliary supporting of the top plate. The retraced basic supports are moved away from a fully-mechanized coal mining and caving face. The original supporting mode that shed beams are erected at the position of the sector zone through single supporting columns to maintain the top plate is changed into the supporting mode that the wood cribs and single supporting columns are erected at the position of the sector zone for auxiliary supporting, the contact area of a base plate is increased, accordingly the single supporting columns are prevented from being embedded into the ground and are easy to recover, further the labor intensity of workers is reduced, and safe construction is ensured.
Description
Technical field
The present invention relates to a kind of combining and adopt fully mechanized coal face rack restoring supporting method.
Background technology
At present, carry out combining adopt fully mechanized coal face support reclaim time, often run into mud stone base plate, cause sector belt supporting monomer to bore ground, cause sector belt roof timbering insufficient strength thus, deflection is large, and support reclaims difficulty.Meanwhile, because the amount of crushing is comparatively large, also cause supporting MONOMER RECOVERY comparatively difficult, constructor's labour intensity is comparatively large, and safety factor reduces, thus danger is increased, and has a strong impact on construction speed.
Fig. 1 shows in prior art to combine and adopts the schematic diagram that hydraulic support of top-coal saving face withdraws sector belt supporting.As shown in Figure 1, in the prior art, often recall a support, that sets up " beam three post " in time at support original position moves towards canopy supporting roof.The canopy that moves towards of so-called " beam three post " refers to the frame construction being supported a crossbeam by three individual props.Usually, the post distance between individual prop is 1.0 meters, and the distance between adjacent canopy is 0.85 meter.Undertaken by frame from bottom to top during frame canopy.Above-mentioned girder steel can adopt π section steel beam.Unsupported back span between this π section steel beam front end and return channel, from time larger, install a post of attaching the names of pre-determined candidates and safeguards.Later often withdraw a support and safeguard top board according to the method described above, simultaneously in the end two framves move towards canopy prop up intercolumniation respectively install 1 in an opposite direction post (angle clashed by post is in an opposite direction 75 ° ~ 80 °) carry out strengthening supporting; Move towards canopy to reclaim by " seeing seven times two " or " seeing eight times two " principle.
As described above, the method shown in Fig. 1 of employing is carried out combining and is adopted hydraulic support of top-coal saving face and withdraw, and just easily causes supporting monomer to bore as run into mud stone base plate, supporting intensity is inadequate, and the amount of crushing is large, makes support reclaim difficulty thus, increase labour intensity, also safety factor is lower.
Summary of the invention
The invention provides a kind of combining and adopt fully mechanized coal face rack restoring supporting method, be intended to overcome that supporting monomer in prior art easily bores that ground, the amount of crushing are large, supporting intensity not and the defects such as MONOMER RECOVERY difficulty.
Specifically, the invention provides a kind of combining and adopt fully mechanized coal face rack restoring supporting method, wherein, originally carried out roof supporting by basic support at sector belt place, basic support to be withdrawn in a return channel to be connected with shield support by round-link chain and to adopt to be withdrawn from from the mode of moving; Often withdraw from this support of stylobate, just arrange a grillage in the origin-location of this this support of stylobate, this grillage is used for roof supporting; Near described grillage, arrange monomer, this monomer is used for supplemental support top board; The basic support withdrawn from is moved away to combine adopts fully mechanized coal face.
Preferably, in return channel, withdraw described basic support by shield support, wherein, in basic rack restoring process, shield support is drawn to move to appropriate location, is caving with controlroof.
More preferably, described basic Bracket setting has basic support pushing beam, described shield support is provided with shield support pushing beam, employing is unloaded button and is coordinated round-link chain basic support pushing beam and shield support pushing beam to be linked together, the height of described basic support is declined, and basic support is moved forward.
More preferably, when described basic support is moved to the first ad-hoc location, just under the origin-location of described basic support, installs grillage, and install monomer near grillage.
More preferably, described first ad-hoc location is distance coal side ad-hoc location.
More preferably, described monomer forms certain angle in an opposite direction relative to the direction, goaf of described work plane.
More preferably, after installing described monomer, the position of support is reclaimed in adjustment, after support has adjusted, described basic support continues from moving to the second ad-hoc location, and adopt work plane tuning winch directly to connect described basic support pushing beam, the direction of basic support is ajusted, to load and transport described basic support to described basic support tuning.
More preferably, described second ad-hoc location has been the position of basic support tuning.
The present invention utilizes individual prop erection capplce to safeguard the support pattern of top board by original at sector belt place, change into the support pattern at sector belt place crib building, individual prop auxiliary shoring, add the contact area with base plate, thus prevent individual prop from boring ground, and be easy to reclaim, and then reduce staff labor intensity, ensure that safe construction.
Accompanying drawing explanation
Fig. 1 shows in prior art to combine and adopts the schematic diagram that hydraulic support of top-coal saving face withdraws sector belt supporting;
Fig. 2 illustrates and adopts hydraulic support of top-coal saving face withdraw sector belt supporting schematic diagram according to of the present invention combining.
Detailed description of the invention
Generally, the present invention reclaims to combine and adopts fully mechanized coal face support on mud stone base plate, support unit erection capplce is utilized to safeguard the support pattern of top board by original at sector belt place, change into the support pattern at sector belt place crib building, support unit auxiliary shoring, the supporting intensity of sector belt place top board can be increased thus.
Specifically, Fig. 2 illustrates and adopts hydraulic support of top-coal saving face withdraw sector belt supporting schematic diagram according to of the present invention combining.As shown in Figure 2, basic support to be recycled can by withdrawing from from the mode of moving.Often withdraw from this support of stylobate, just a grillage is set in the origin-location of this this support of stylobate.Typically, grillage can adopt sleeper form, and its size can be 1200mm × 150mm × 150mm or 1500mm × 150mm × 150mm, and the quantity of sleeper is about 50.
Rack restoring process can be described below:
First, basic Bracket setting to be withdrawn has pushing beam, and the first shield support is also provided with pushing beam, basic support to be withdrawn and the first shield support are passed through by round-link chain (such as, Φ 26 round-link chain) connect, be reliably fixed on (employing is unloaded button and coordinated round-link chain) on the pushing beam of support, then basic support to be withdrawn dropped to suitable height, site operation human users support, adopts support to move forward from the mode of moving;
Subsequently, when the basic support withdrawn is moved to ad-hoc location (such as, apart from coal side specific range, especially, distance about 1m) time, site operation personnel install grillage (being such as " # " font grillage) under support original position, and install monomer (quantity and the position that install monomer are determined according to field condition, and monomer preferably forms certain angle in an opposite direction relative to direction, goaf) in grillage front;
Then, the basic support withdrawn is continued from moving to ad-hoc location (such as, till coal side 0.3m), utilize work plane tuning winch directly to connect the pushing beam of the basic support withdrawn, to this basic support tuning, holder orientation to be ajusted (in the case, can complete by individual prop, but necessary remote-controlled operation), haul support to point of loading with work plane tuning winch, entrucking is transported to ground.Thus, the process that withdraws of basic support will complete.Now, sector belt roof timbering will based on grillage, monomer auxiliary shoring is auxiliaryly carry out Roof Control.
Basic support is withdrawn from by return channel, and the length of return channel is the length of work plane, and its width and height need be determined according to the model of support.Generally, return channel can be arranged to enough large size, so that basic support can be withdrawn from smoothly.
As described above, need to arrange shield support when basic rack restoring.Generally, the top board of shield support support and control stent area to be withdrawn, prevents roof caving, and cooperation installs grillage and safeguards that sector withdraws hydraulic support.Three shield supports (first, second, third shield support) have been shown in Fig. 2.Hereinafter by the concrete operations mode of concrete analysis shield support.
As shown in Figure 2, three, the second, first shield support is taken a step slowly point to draw for three times and is moved on to position and (draw and move order: the three-the second-the first), the delayed first shield support certain distance of second shield support (such as, the distance of 1.75 meters), the 3rd shield support is concordant with the second shield support base;
Subsequently, before pulling shield support, first the winch gib head in return channel and the 3rd shield support pushing beam are linked together, be then drilled into operation in shield support by site operation personnel and fall frame, use winch draw the reach of this shield support or adopt support to move forward from the mode of moving; And pull the mode of other shield supports identical with pulling the mode of the 3rd shield support;
Then, the mode of loosing core can be adopted to withdraw support, in this case, often take out two framves and draw and move a cover frame; Also order can be adopted to withdraw support, and in this case, first, second shield support is often taken out two framves and is drawn and move once, and the 3rd shield support is often taken out a frame and drawn and move once.
As described above, often withdraw from a basic support, just can set up a grillage in the origin-location of basic support.Therefore, now supporting roof by crib protection.In the case, because grillage itself has relatively large floor space, therefore when running into mud stone base plate, grillage also can not bore ground, thus effectively increases the supporting intensity of supporting roof.
Certainly, the not pure grillage that adopts of the present invention supports supporting roof.While grillage supports, also adopt individual prop to carry out auxiliary shoring simultaneously.Such as, individual prop, up to 3.15 meters, also adopts " beam column " structure, and its crossbeam adopts the girder steel of long 0.8 meter-1.2 meters.But because grillage plays main support action, even if therefore when running into mud stone base plate, monomer supporting also can not bore ground.
Machine lane and air way is also shown in Fig. 2.Machine lane is also called Belt transport tunnel, is mainly used in carry coal, is also intake simultaneously.Air way is then return aircourse.Thus, machine lane air intake, air way return air, machine lane and air way, work plane form a system.
The present invention utilizes support unit erection capplce to safeguard the support pattern of top board by original at sector belt place, change into the support pattern at sector belt place crib building, individual prop auxiliary shoring, add the contact area with base plate, thus prevent individual prop from boring ground, and be easy to reclaim, and then reduce staff labor intensity, ensure that safe construction.
Those skilled in the art will also be appreciated that protection scope of the present invention is not limited in above-described embodiment, allly all fall within the scope of the invention to equivalents of the present invention.
Claims (8)
1. combine and adopt a fully mechanized coal face rack restoring supporting method, wherein, originally carried out roof supporting by basic support at sector belt place, the feature of described method is:
Basic support to be withdrawn in a return channel to be connected with shield support by round-link chain and to adopt to be withdrawn from from the mode of moving;
Often withdraw from this support of stylobate, just arrange a grillage in the origin-location of this this support of stylobate, this grillage is used for roof supporting;
Near described grillage, arrange monomer, this monomer is used for supplemental support top board;
The basic support withdrawn from is moved away to combine adopts fully mechanized coal face.
2. method according to claim 1, is characterized in that: in return channel, withdraw described basic support by shield support, and wherein, in basic rack restoring process, shield support is drawn to move to appropriate location, is caving with controlroof.
3. method according to claim 2, it is characterized in that: described basic Bracket setting has basic support pushing beam, described shield support is provided with shield support pushing beam, employing is unloaded button and is coordinated round-link chain basic support pushing beam and shield support pushing beam to be linked together, the height of described basic support is declined, and basic support is moved forward.
4. method according to claim 3, is characterized in that: when described basic support is moved to the first ad-hoc location, just under the origin-location of described basic support, installs grillage, and install monomer near grillage.
5. method according to claim 4, is characterized in that: described first ad-hoc location is distance coal side ad-hoc location.
6. method according to claim 4, is characterized in that: described monomer forms certain angle in an opposite direction relative to the direction, goaf of described work plane.
7. the method according to any one of claim 4-6, it is characterized in that: after installing described monomer, the position of support is reclaimed in adjustment, after support has adjusted, described basic support continues from moving to the second ad-hoc location, and adopt work plane tuning winch directly to connect described basic support pushing beam, the direction of basic support is ajusted, to load and transport described basic support to described basic support tuning.
8. method according to claim 7, is characterized in that: described second ad-hoc location has been the position of basic support tuning.
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| CN201510276130.2A CN104895592A (en) | 2015-05-26 | 2015-05-26 | Fully-mechanized coal mining and caving face support retracement supporting method |
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| CN201510276130.2A CN104895592A (en) | 2015-05-26 | 2015-05-26 | Fully-mechanized coal mining and caving face support retracement supporting method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106523015A (en) * | 2016-12-27 | 2017-03-22 | 贵州盘江精煤股份有限公司 | Recycling-period ventilating structure for coal face and construction method of recycling-period ventilating structure |
| CN107939440A (en) * | 2017-11-01 | 2018-04-20 | 神华集团有限责任公司 | Fully-mechanized mining working equipment withdraws method |
| CN109083663A (en) * | 2018-08-24 | 2018-12-25 | 淮北矿业股份有限公司 | A kind of dismounting device for underground coal mine fully-mechanized mining working |
| CN111119975A (en) * | 2019-12-22 | 2020-05-08 | 肥城矿业集团梁宝寺能源有限责任公司 | Section protection device and method for loose top coal at fault during stoping and withdrawing of fully mechanized caving face |
| CN112879063A (en) * | 2021-01-25 | 2021-06-01 | 王新民 | Method for safely and quickly withdrawing hydraulic support of fully mechanized coal mining face |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106523015A (en) * | 2016-12-27 | 2017-03-22 | 贵州盘江精煤股份有限公司 | Recycling-period ventilating structure for coal face and construction method of recycling-period ventilating structure |
| CN107939440A (en) * | 2017-11-01 | 2018-04-20 | 神华集团有限责任公司 | Fully-mechanized mining working equipment withdraws method |
| CN107939440B (en) * | 2017-11-01 | 2019-08-20 | 神华集团有限责任公司 | Fully-mechanized mining working equipment withdraws method |
| CN109083663A (en) * | 2018-08-24 | 2018-12-25 | 淮北矿业股份有限公司 | A kind of dismounting device for underground coal mine fully-mechanized mining working |
| CN111119975A (en) * | 2019-12-22 | 2020-05-08 | 肥城矿业集团梁宝寺能源有限责任公司 | Section protection device and method for loose top coal at fault during stoping and withdrawing of fully mechanized caving face |
| CN111119975B (en) * | 2019-12-22 | 2021-09-24 | 肥城矿业集团梁宝寺能源有限责任公司 | Section protection device and method for loose top coal at fault during stoping and withdrawing of fully mechanized caving face |
| CN112879063A (en) * | 2021-01-25 | 2021-06-01 | 王新民 | Method for safely and quickly withdrawing hydraulic support of fully mechanized coal mining face |
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