CN102865099A - Under-building, under-railway and under-water mining filling process - Google Patents
Under-building, under-railway and under-water mining filling process Download PDFInfo
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- CN102865099A CN102865099A CN2012103099132A CN201210309913A CN102865099A CN 102865099 A CN102865099 A CN 102865099A CN 2012103099132 A CN2012103099132 A CN 2012103099132A CN 201210309913 A CN201210309913 A CN 201210309913A CN 102865099 A CN102865099 A CN 102865099A
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Abstract
The invention relates to a coal mining process, in particular to an under-building, under-railway and under-water mining filling process, and solves the technical problems that the recovery ratio is low and a god cannot be filled effectively in the conventional coal mining technology. The under-building, under-railway and under-water mining filling process comprises the following steps of: (a) respectively tunneling a belt air return lane and a railway air inlet lane on the two sides parallel to a coal seam to be mined; (b) tunneling a waste rock transportation and air return lane along one side of the belt air return lane; (c) performing recovery on the coal seam (9) to be mined, and simultaneously, digging a contact channel perpendicular to the waste rock transportation lane on a coal pillar between the waste rock transportation and air return lane and the belt air return lane; (d) performing coal waste rock filling operation on the gob to finish a work cycle; and (e) repeating the work cycle continuously until all gobs are filled. The under-building, under-railway and under-water mining filling process is suitable for comprehensive mechanized coal mining of large and medium-sized coal mines and high in recovery rate; waste rock is utilized reasonably; and the harmony of ecology and production in a mine area is realized.
Description
Technical field
The present invention relates to coal mining technique, be specially a kind of " three times " exploitation filling process.
Background technology
In the most colliery of China, all exist " three times " (under building, under the railway, under the water body) to press the serious problem of coal, restricted the development of mine.Owing to will consider that the exploitation meeting exerts an influence to the stability of above ground structure and railway, take into account simultaneously the safety of underground work, need adopt comparatively special production technique so carry out coal mining in " three times ", the special production technique of this class is referred to as " three times " production technique.Although Strip mining commonly used is the important method that coal is pressed in exploitation " three times " at present, but because its lower rate of extraction and be not suitable for installing and using of large and medium-sized coal-mine integrated-mining equipment, thereby it can't generally be promoted, and use large and medium-sized mine fully-mechanized mining equipment to face the goaf filling problem at railways and water-bodies.Therefore need a kind of high stoping rate and the good production practice of filling effect.
Unobstructed for the ventilation that guarantees the down-hole, prevent methane accumulation, a return airway must be arranged in the coal mining process, namely should have at least two tunnels that mutually connect, an air intake, an air-out forms return air channel, to guarantee safety.
Summary of the invention
The present invention provides a kind of " three times " exploitation filling process for solving the technical problem that the rate of extraction that exists in the production technique of present colliery " three times " is low, can't carry out effective filling to the goaf.
The present invention realizes by the following technical solutions: a kind of " three times " exploitation filling process may further comprise the steps: (a) dig respectively a belt return airway and a track air intake lane being parallel to the both sides for the treatment of mining coal seam; Described belt return airway is parallel with mining direction with the trend in track air intake lane; Dig a fortune cash return airway parallel with the belt return airway, the coal seam formation coal wall between described fortune cash return airway and the belt return airway along the belt return airway with treating the non-conterminous one side of mining coal seam; (c) treat mining coal seam and carry out back production, simultaneously dig out the horizontal river of contact that communicates with the goaf that forms after the back production on the coal wall between fortune cash return airway and the belt return airway perpendicular to fortune cash return airway, by transporting the cash return airway spoil is transported to the horizontal Chuan Chu of the contact of digging out simultaneously; (d) the gangue packing job is carried out in the goaf, gangue is fills up to the goaf by getting in touch with horizontal river, should remain in the stowing operation that the width in goaf is not more than 15 meters; After this goaf filled up, will get in touch with again horizontal river and fill up, finish a work cycle; (e) constantly repeat aforementioned work cycle, constantly dig the new horizontal river of contact according to the back production progress, and packing job is carried out in the goaf, until the goaf whole fill is complete; When digging the new horizontal river of contact, the horizontal river of new contact and and its nearest horizontal river of the contact that has been filled with between spacing be 15 ~ 20 meters, the coal walls of adjacent two contacts between the horizontal rivers are called the protection coal column.
As shown in Figure 1, described belt return airway and track air intake lane lay respectively at the both sides for the treatment of mining coal seam, and parallel with mining direction, and are parallel to each other; Belt return airway, track air intake lane, goaf and the space at support place of being located at the coal excavation apparatus rear portion of coal-face 8 form return air channel, and be smooth and easy with the ventilation of guaranteeing the down-hole; Accompany one deck coal wall between fortune cash return airway and the belt return airway, fortune cash return airway is used for the transportation spoil; When treating mining coal seam and carrying out back production, dig a horizontal river of contact that is communicated with fortune cash return airway and belt return airway at coal column; The coal of extraction transports by the belt return airway; Spoil is transported to the horizontal Chuan Chu of the contact that is communicated with the goaf that has dug, and is fills up to the goaf; The width that should guarantee the goaf in the stowing operation is not more than 15 meters, to guarantee the safety of coal-face; The width in described goaf refers to the width along mining direction; After this goaf filled up, will dig the horizontal river of new contact; When digging the new horizontal river of contact, should first a upper horizontal river of contact be filled with, be unlikely to excessive to guarantee the pressure that the new horizontal river of contact of digging is born, guarantee job safety; The new horizontal river of contact of digging is 15 ~ 20 meters with the spacing in the horizontal river of contact that be filled with and nearest, and namely two width of getting in touch with the protection coal column between the horizontal river are 15 ~ 20 meters, to protect the safety of the whole scope of operation; The width of protection coal column is 15 ~ 20 meters, also can be corresponding with the position, goaf under the prerequisite of guaranteeing goaf safety, guarantee the smooth enforcement of packing job; Mining operations can be to carry out respectively with digging the horizontal river of contact and packing job being carried out in the goaf, also can carry out synchronously, until treat that with whole mining coal seam exploitation filling is complete.A used spoil part from the raw coal part of down-hole extraction from aboveground mine or coal separation plant.The horizontal river of the rightmost contact of Fig. 1 is to dig at first, is used for packing job is carried out in goaf 5, and the horizontal river of contact in the middle of being positioned at is the next horizontal river of contact that will dig.The general mining coal seam width for the treatment of is 150 meters ~ 200 meters, and only several meters of the width of belt return airway, track air intake lane and fortune cash return airway so the rate of extraction of the present invention is very high, are guaranteeing to have improved to greatest extent the rate of extraction under the safe prerequisite.
The present invention has realized that while exploiting filling waste rock is to the goaf, finally it is filled up treating that mining coal seam is exploited when complete, both guaranteed the safety of whole operation process, so that the aboveground spoil that easily pollutes in down-hole is fully used, effectively avoided the destruction of " three times " exploitation to above ground structure, railway and water body again.The present invention is suitable for large and medium-sized colliery comprehensive mechanical coal mining, high stoping rate, and gangue utilization is reasonable, reaches ecology of mining areas and social harmony.
Further, be equipped with blower fan in the import in track air intake lane and the outlet of belt return airway; Be provided with the air duct that is connected with blower fan in the tunnel of track air intake lane and belt return airway.Generally, when the underground mining operation, generally all to set up in the relevant position blower fan and air duct, to guarantee underground ventilating, the hazardous gas concentration such as fire damp be remained in the safe range, guarantee personnel's safety.
Description of drawings
Schematic diagram is arranged in the tunnel that Fig. 1 implements in the process of the present invention.
1-fortune cash return airway, 2-gets in touch with horizontal river, and 3-protects coal column, 4-belt return airway, the 5-goaf, the 6-mining direction, 7-track air intake lane, the 8-coal-face, 9-treats mining coal seam.
The specific embodiment
A kind of " three times " exploitation filling process may further comprise the steps: (a) dig respectively a belt return airway 4 and a track air intake lane 7 being parallel to the both sides for the treatment of mining coal seam 9; Described belt return airway 4 is parallel with mining direction 6 with the trend in track air intake lane 7; (b) dig a fortune cash return airway 1 parallel with belt return airway 4, the coal seam formation coal wall between described fortune cash return airway 1 and the belt return airway 4 along belt return airway 4 with treating the non-conterminous one side of mining coal seam 9; (c) treat mining coal seam 9 and carry out back production, simultaneously dig out the horizontal river 2 of contact that communicates with the goaf 5 that forms after the back production on the coal wall between fortune cash return airway 1 and the belt return airway 4 perpendicular to fortune cash return airway 1, by transporting cash return airway 1 spoil is transported to the horizontal Chuan2Chu of the contact of digging out simultaneously; (d) the gangue packing job is carried out in goaf 5, gangue is fills up to goaf 5 by getting in touch with horizontal river 2, should remain in the stowing operation that the width in goaf 5 is not more than 15 meters; After this goaf 5 filled up, will get in touch with again horizontal river 2 and fill up, finish a work cycle; (e) constantly repeat aforementioned work cycle, constantly dig the new horizontal river 2 of contact according to the back production progress, and packing job is carried out in the goaf, until goaf 5 whole fills are complete; When digging the new horizontal river 2 of contact, the horizontal river 2 of new contact and and its horizontal river 2 of nearest contact that has been filled with between spacing be 15 ~ 20 meters, the coal walls of adjacent two contacts between the horizontal rivers 2 are called protection coal column 3.Be equipped with blower fan in the import in track air intake lane 7 and the outlet of belt return airway 4; Be provided with the air duct that is connected with blower fan in the tunnel of track air intake lane 7 and belt return airway 4.Entrance at fortune cash return airway 1 is provided with blower fan; Fortune cash return airway is provided with the air duct that is connected with blower fan in 1 tunnel.Can also dig 2 ~ 3 horizontal rivers of pre-contact for subsequent use at the coal wall, the spacing between the horizontal river of described pre-contact for subsequent use should be greater than 50 meters; The minimum spacing in the horizontal river of pre-contact for subsequent use and the horizontal river 2 of contact dug is also greater than 50 meters.Spoil is to be transported to the horizontal Chuan2Chu of contact by dumptruct; The projection of spoil is undertaken by scrapper conveyor and throwing cash machine; Scrapper conveyor is transported to the cash machine of throwing with spoil, throw the cash machine with the spoil impelling to the goaf 5.
Fortune cash return airway 1 also can be used as return air channel, in fortune cash return airway 1 tunnel blower fan and air duct is set, and can further promote the smooth and easy of ventilation whole tunnel in; Before operation, dig the horizontal river of pre-contact for subsequent use, be used for ventilating, and can be used as personnel's escape way; General dig 2 ~ 3,50 meters of pre-contact interval between cross openings for subsequent use can guarantee safety.Belt return airway 4 and track intake 7 are as two emergency exits, and fortune cash return airway 1 also can be done the emergency exit.Dumptruct is transported the spoil that comes and is poured on the scrapper conveyor, and need to control the amount of at every turn toppling over well, in order to avoid that the accumulation scope needs after excessive is artificial toward the scrapper conveyor material loading.Throwing the cash machine has certain altitude, and this will scrapper conveyor be arranged to certain slope and could sends into spoil on the belt of throwing the cash machine.
Claims (6)
1. one kind " three times " exploitation filling process is characterized in that, may further comprise the steps: (a) dig respectively a belt return airway (4) and a track air intake lane (7) being parallel to the both sides for the treatment of mining coal seam (9); Described belt return airway (4) is parallel with mining direction (6) with the trend in track air intake lane (7); (b) dig a fortune cash return airway (1) parallel with belt return airway (4), the coal seam formation coal wall between described fortune cash return airway (1) and the belt return airway (4) along belt return airway (4) with treating the non-conterminous one side of mining coal seam (9); (c) treat mining coal seam (9) and carry out back production, simultaneously digging out the horizontal river of contact (2) that communicates with the goaf (5) that forms after the back production on the coal wall between fortune cash return airway (1) and the belt return airway (4) perpendicular to fortune cash return airway (1), spoil is transported to the horizontal river of the contact of digging out (2) is locating by transporting cash return airway (1) simultaneously; (d) goaf (5) are carried out the gangue packing job, gangue is fills up to goaf (5) by the horizontal river of contact (2), should remain in the stowing operation that the width in goaf (5) is not more than 15 meters; After this goaf (5) filled up, will get in touch with again horizontal river (2) and fill up, finish a work cycle; (e) constantly repeat aforementioned work cycle, constantly dig the new horizontal river of contact (2) according to the back production progress, and goaf (5) are carried out packing job, until goaf (5) whole fill is complete; When digging the new horizontal river of contact (2), the horizontal river of new contact (2) and and its nearest horizontal river of the contact that has been filled with (2) between spacing be 15 ~ 20 meters, the coal walls between adjacent two contacts horizontal rivers (2) are called protection coal column (3).
2. " three times " as claimed in claim 1 exploitation filling process is characterized in that, is equipped with blower fan in the import in track air intake lane (7) and the outlet of belt return airway (4); Be provided with the air duct that is connected with blower fan in the tunnel of track air intake lane (7) and belt return airway (4).
3. " three times " as claimed in claim 2 exploitation filling process is characterized in that, is provided with blower fan in the entrance of fortune cash return airway (1); Fortune cash return airway (1) is provided with the air duct that is connected with blower fan in the tunnel.
4. such as claim 1 or 2 or 3 described " three times " exploitation filling process, it is characterized in that, also dig 2 ~ 3 horizontal rivers of pre-contact for subsequent use at the coal wall, the spacing between the horizontal river of described pre-contact for subsequent use should be greater than 50 meters; The minimum spacing in the horizontal river of pre-contact for subsequent use and the horizontal river of contact (2) dug is also greater than 50 meters.
5. such as claim 1 or 2 or 3 described " three times " exploitation filling process, it is characterized in that, spoil is to be transported to the horizontal river of contact (2) by dumptruct to locate; The projection of spoil is undertaken by scratch board conveyor and throwing cash machine; Scratch board conveyor is transported to the cash machine of throwing with spoil, throw the cash machine with the spoil impelling to the goaf (5).
6. " three times " as claimed in claim 4 exploitation filling process is characterized in that, gangue is to be transported to the horizontal river of contact (2) by dumptruct to locate; The projection of gangue is undertaken by scrapper conveyor and throwing cash machine; Scrapper conveyor is transported to the cash machine of throwing with gangue, throw the cash machine with the gangue impelling to the goaf (5).
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| CN201210309913.2A CN102865099B (en) | 2012-08-29 | 2012-08-29 | Under-building, under-railway and under-water mining filling process |
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| CN201210309913.2A CN102865099B (en) | 2012-08-29 | 2012-08-29 | Under-building, under-railway and under-water mining filling process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291300A (en) * | 2013-05-20 | 2013-09-11 | 中国矿业大学 | Mounting method of immediate roof dynamic monitor of comprehensive mechanized solid-filling coal mining |
| CN103498679A (en) * | 2013-10-14 | 2014-01-08 | 兖州煤业股份有限公司 | Filling and supporting synchronized fully-mechanized mining method for preventing abnormal roof weighting |
| CN103628911A (en) * | 2013-12-06 | 2014-03-12 | 中国矿业大学 | Fully-mechanized coal mining/ caving working face sectional type gob-side entry retaining method |
| CN104453994A (en) * | 2014-11-18 | 2015-03-25 | 中国矿业大学(北京) | Gob-side entry retaining method for putting top waste rock down to achieve roadway side packing |
| CN105464700A (en) * | 2015-12-14 | 2016-04-06 | 中国矿业大学 | Method for determining length of filling segment of fully mechanized mining and filling mixed mining working face |
| CN112096449A (en) * | 2020-10-26 | 2020-12-18 | 西安科技大学 | Coal mine goaf paste strip grouting combined filling mining method |
| CN112593939A (en) * | 2020-12-09 | 2021-04-02 | 中国矿业大学 | Method for mining 'three lower' coal seam by replacing all coal pillars through gangue double filling |
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| CN102011588A (en) * | 2010-11-30 | 2011-04-13 | 淄博市王庄煤矿 | House pillar type cutting and filling method of medium coal seam for controlling movement deformation of overlying rock |
| CN102146794A (en) * | 2011-03-04 | 2011-08-10 | 河南理工大学 | Grouting, consolidating and gob-side tunneling process method |
| CN102392643A (en) * | 2011-11-17 | 2012-03-28 | 中国矿业大学 | Under-building filling, mining and coal pillar recovering method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291300A (en) * | 2013-05-20 | 2013-09-11 | 中国矿业大学 | Mounting method of immediate roof dynamic monitor of comprehensive mechanized solid-filling coal mining |
| CN103291300B (en) * | 2013-05-20 | 2014-12-03 | 中国矿业大学 | Mounting method of immediate roof dynamic monitor of comprehensive mechanized solid-filling coal mining |
| CN103498679A (en) * | 2013-10-14 | 2014-01-08 | 兖州煤业股份有限公司 | Filling and supporting synchronized fully-mechanized mining method for preventing abnormal roof weighting |
| CN103628911A (en) * | 2013-12-06 | 2014-03-12 | 中国矿业大学 | Fully-mechanized coal mining/ caving working face sectional type gob-side entry retaining method |
| CN103628911B (en) * | 2013-12-06 | 2016-04-20 | 中国矿业大学 | Work plane segmented gob-side entry retaining method is adopted/put to a kind of combining |
| CN104453994A (en) * | 2014-11-18 | 2015-03-25 | 中国矿业大学(北京) | Gob-side entry retaining method for putting top waste rock down to achieve roadway side packing |
| CN105464700A (en) * | 2015-12-14 | 2016-04-06 | 中国矿业大学 | Method for determining length of filling segment of fully mechanized mining and filling mixed mining working face |
| CN105464700B (en) * | 2015-12-14 | 2017-12-26 | 中国矿业大学 | Fully mechanized mining filling mixed mining working face filling segment length determines method |
| CN112096449A (en) * | 2020-10-26 | 2020-12-18 | 西安科技大学 | Coal mine goaf paste strip grouting combined filling mining method |
| CN112593939A (en) * | 2020-12-09 | 2021-04-02 | 中国矿业大学 | Method for mining 'three lower' coal seam by replacing all coal pillars through gangue double filling |
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| CN102865099B (en) | 2014-12-24 |
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