CN103527196A - Method for recovery of room-type coal pillar through loess filling - Google Patents

Method for recovery of room-type coal pillar through loess filling Download PDF

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Publication number
CN103527196A
CN103527196A CN201310516020.XA CN201310516020A CN103527196A CN 103527196 A CN103527196 A CN 103527196A CN 201310516020 A CN201310516020 A CN 201310516020A CN 103527196 A CN103527196 A CN 103527196A
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China
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coal
room
loess
coal column
recovery
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CN201310516020.XA
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Chinese (zh)
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CN103527196B (en
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张吉雄
姜海强
黄艳利
周楠
李猛
孙强
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中国矿业大学
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Abstract

The invention discloses a method for recovery of a room-type coal pillar through loess filling. Along the vertical section laneway direction, formed channels in mined coal rooms are taken as an arrangement form of coal transport lanes and material transport lanes; two adjacent coal pillars are arranged to be a stope face, a row of coal pillars are retained between adjacent stope faces as a partition wall; The recovery of coal pillars employs a blasting technology, loess of ground is taken as a filling material of mined-out area, the backfill of the mined-out area is carried out through a way of cooperation operation of high-speed power throwing machines and bulldozers, A room-type remaining coal pillar is replaced by a compact loess filling body for supporting the mined-out area roof. The method recovers precious coal resource, lowers great resource waste caused by room-type mining, and provides a new technical approach for mines with similar conditions in our country.

Description

A kind of loess-filling reclaims the method for room formula coal column
Technical field
The present invention relates to a kind of method that reclaims room formula coal column, especially a kind of coal mining that is applicable to is left over coal pillar width in the method for the loess-filling recovery room of 8~12m formula coal column.
Background technology
Room mining is being used in a lot of mining areas such as coal basin, China Erdos and Shenfu coalfield for a long time always, and the disadvantage of the method is the room of only mining, the post of not mining.According to incompletely statistics, only, in the recoverable reserves of Erdos area 11,000,000,000 t, resource recovery only accounts for 36~40%, and about 66~7,000,000,000 tons of coal resources are abandoned in down-hole, form dull coal amount, cause the significant wastage of national precious resources.On the other hand, along with the high strength exploitation of coal resources, a lot of mines are faced with the crisis of resource exhaustion, and therefore, coal column is left in recovery room mining has become the task of top priority.In order to improve the utilization rate of coal resources, country has put into effect a series of legal system rules, forces coal mining enterprise to improve the coal resources rate of extraction.
At present, formed the recovery method that coal column is left in some room mining both at home and abroad, but but exist, the rate of recovery is not high, the shortcoming of mechanization degree, in addition, after Pillar Recovery, will the reducing of the Area of bearing of top board, the factor of stress concentration of coal column can increase, may cause coal column unstability like this, roof falling over great extent, even can jeopardize personnel's life security.
Therefore, study and a kind ofly can guarantee safe working, can solve again the great technical barrier that production technique that room mining leaves over the recovery problem of coal column has become coal mining.
Summary of the invention
The object of the invention is the weak point for prior art, provide a kind of loess-filling simple to operate, that resource recovery is high to reclaim room formula and leave over coal column coal-mining method.
For achieving the above object, loess-filling of the present invention reclaims room formula and leaves over coal column coal-mining method, comprises the steps:
A. along the direction perpendicular to section road, every adjacent two row coal columns are arranged to a stope, between adjacent stope, retain a row coal column as divider wall;
B. along the direction perpendicular to section road, the first row in divider wall left side has been mined to room as fortune coal road, secondary series has been mined room as haul lane;
C. in fortune coal road, arrange bulldozer, loader and railless free-wheeled vehicle, in haul lane, arrange ribbon conveyer (4), high speed power throwing machine simultaneously;
D. adopt the mode of drilling and blasting to carry out explosion to the 1# coal column in a stope of two row coal columns layouts, utilize the raw coal that loader falls explosion to be loaded on railless free-wheeled vehicle, then by railless free-wheeled vehicle, raw coal is transported to ground, treats that 1# Pillar Recovery is complete, cleaning float coal;
E. utilize the high speed power throwing machine loess of jettisoninging to the goaf forming after 1# pillar extraction, then adopt bulldozer that the loess of jettisoninging is pushed away to reality, high speed power throwing machine has coordinated jettisoninging of loess and has pushed away implementation industry with bulldozer;
F. repeating step d, e complete the residue recovery of coal column and the filling in goaf in 2# coal column, 3# coal column, 4# coal column and this stope successively;
G. when the advance of the face stops back production during to section road place, and fire dam is set;
H. repeating step b, c, d, e, f, g complete the recovery that the interior room of all the other stopes formula is left over coal column.
Beneficial effect: the present invention is particularly useful for leaving over the room formula coal column that coal pillar width is 40~60m at 8~12m, face length, after reclaiming coal column, filling is carried out in goaf, under the premise that security is guaranteed, valuable coal resources have not only been reclaimed, and the length of service that has extended mine, solved the mine problem of the resource significant wastage brought of room formula.In addition, after leaving over Pillar Recovery, the loess being filled with in goaf can support overlying rock effectively, thereby reach, weakens the impact of Pillar Recovery on surface water and building thereof.For room mining under China's conditions of similarity, leave over the recovery of coal column and started a kind of new solution route, scientific and engineering is significant.Its method is simple, and resource recovery is high, has practicality widely.
Accompanying drawing explanation
Fig. 1 is coal-face division figure of the present invention;
Fig. 2 is work plane plane of arrangement figure of the present invention;
Fig. 3 is first Pillar Recovery of the first work plane of the present invention and the plan view after the filling of territory, goaf;
Fig. 4 is that the first work plane of the present invention completes the plan view after all Pillar Recovery and goaf filling;
Fig. 5 is second working face mining state plane figure of the present invention;
Fig. 6 is that second work plane of the present invention completes the plan view after all Pillar Recovery and goaf filling.
In figure: 1-section road, 2-divider wall, 3-high speed power throwing machine, 4-ribbon conveyer, 5-bulldozer, 6-loader, 7-railless free-wheeled vehicle, 8-1# coal column, 9-2# coal column, 10-3# coal column, 11-4# coal column, 12-transports coal road, 13-haul lane, 14-fire dam, 15-loess.
The specific embodiment
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
(1) the first mining face in certain ore deposit is positioned at three southwest, panel sides, along the direction perpendicular to section road 1, every two adjacent row coal columns are arranged to a stope, work plane mining height 4.5m, work plane strike length 120m, tilt length is 40m, retains a row coal column as divider wall 2, as shown in Figure 1 between adjacent stope;
(2) along the direction perpendicular to section road 1, the first row in divider wall left side has been mined to room as fortune coal road 12, secondary series has been mined room as haul lane 13;
(3) at the interior layout bulldozer 5 of fortune coal road 12, ZL5FB type mining tyres formula explosion-proof loader 6 and railless free-wheeled vehicle 7, interior layout ribbon conveyer 4, high speed power throwing machine 3 in haul lane 13, as shown in Figure 2;
(4) adopt the mode of drilling and blasting to carry out explosion to the 1# coal column 8 in the stope of two row coal columns layouts, utilize coal loading that ZL5FB type mining tyres formula explosion-proof loader 6 falls explosion to railless free-wheeled vehicle 7, then by railless free-wheeled vehicle 7, through fortune coal road 12, coal is transported to ground, treat that 1# coal column 8 has reclaimed, float coal in this stope is cleaned out, as shown in Figure 3;
(5) loess 15 on ground is transported to work plane by ribbon conveyer 4 after being transported to section road 1, utilize high speed power throwing machine 3 loess 15 of jettisoninging to goaf, when loess 15 is accumulated to after certain height, rotation high speed power throwing machine 3, to the opposite side in the goaf material of jettisoninging; Start bulldozer 5 simultaneously, loose loess 15 heaps under just jettisoninging are pushed to goaf direction, make it connect top, loess 15 is tamped to reach certain density simultaneously; When 15 compactings of this side loess are fine and close and connect behind top, rotation high speed power throwing machine 3, again to this side loess 15 of jettisoninging, bulldozer 5 moves to opposite side to carry out the same compacting requiring and connects top technique; Under the cooperation of high speed power throwing machine 3 and bulldozer 5, jettisoning loess and compacting so repeatedly connect top technique, after both sides, goaf are all full of by closely knit loess 15 obturations, stop ribbon conveyer 4 and high speed power throwing machine 3, after 1# coal column 8 reclaims, goaf filling completes;
(6) repeating step (4), (5) complete 2# coal column 9 in this stope, 3# coal column 10,4# coal column 11 successively until the residue recovery of coal column and the filling in goaf, complete the Pillar Recovery of first stope, as shown in Figure 4;
(7) when this stope is advanced into section road 1 place, stop back production, and fire dam 14 is set;
(8) repeating step (2), (3), (4), (5), (6), (7), carry out the Pillar Recovery in stope one by one, completes the recovery that all the other room formulas are left over coal column, as shown in Figure 5,6.

Claims (1)

1. loess-filling reclaims the coal-mining method that room formula is left over coal column, it is characterized in that, comprises the following steps:
A. along the direction perpendicular to section road (1), every adjacent two row coal columns are arranged to a stope, between adjacent stope, retain a row coal column as divider wall (2);
B. along the direction perpendicular to section road (1), the first row in divider wall (2) left side has been mined to room as fortune coal road (12), secondary series has been mined room as haul lane (13);
C. in fortune coal road (12), arrange bulldozer (5), loader (6) and railless free-wheeled vehicle (7), in haul lane (13), arrange ribbon conveyer (4), high speed power throwing machine (3) simultaneously;
D. adopt the mode of drilling and blasting to carry out explosion to the 1# coal column (8) in a stope of two row coal columns layouts, the raw coal that utilizes loader (6) that explosion is fallen is loaded on railless free-wheeled vehicle (7), then by railless free-wheeled vehicle (7), raw coal is transported to ground, treat that 1# coal column (8) has reclaimed, cleaning float coal;
E. utilize high speed power throwing machine (3) loess (15) of jettisoninging to the goaf forming after 1# coal column (8) back production, then adopt bulldozer (5) that the loess of jettisoninging (15) is pushed away to reality, high speed power throwing machine (3) has coordinated jettisoninging and pushing away implementation industry of loess (15) with bulldozer (5);
F. repeating step d, e complete the residue recovery of coal column and the filling in goaf in 2# coal column (9), 3# coal column (10), 4# coal column (11) and this stope successively;
G. when the advance of the face stops back production when section road (1) is located, and fire dam (14) is set;
H. repeating step b, c, d, e, f, g complete the recovery that the interior room of all the other stopes formula is left over coal column.
CN201310516020.XA 2013-10-28 2013-10-28 Method for recovery of room-type coal pillar through loess filling Active CN103527196B (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105240014A (en) * 2015-11-12 2016-01-13 中国矿业大学 Method for reclaiming house type remaining coal pillars based on filling and rebuilding of entry protection coal-pillar band
CN105422099A (en) * 2015-12-11 2016-03-23 太原理工大学 Method for completely filling two sides of pillars with repeated mining and residual mining area remaining coal pillars
WO2016150188A1 (en) * 2015-03-25 2016-09-29 中国矿业大学 Method for fracturing filler wall left behind in adjacent coal-mining face
CN106321103A (en) * 2016-09-08 2017-01-11 中国矿业大学 Method for recycling room coal pillars by solid filling in synergy with artificial pillars
CN107882562A (en) * 2016-09-29 2018-04-06 河南理工大学 Double face arranges the implementation method of Pillar Recovery
CN108087021A (en) * 2017-11-01 2018-05-29 中国矿业大学 A kind of method that filling coal mining recycling leaves coal column and water-resisting key strata is controlled to stablize
CN108915764A (en) * 2018-07-09 2018-11-30 中国矿业大学 A kind of method of reserved tunnel consolidated fill recycling room formula coal column
CN109113744A (en) * 2018-09-04 2019-01-01 中国矿业大学 A kind of external supporting substituted room formula pillar recovery method
CN109139100A (en) * 2018-09-04 2019-01-04 中国矿业大学 Substituted supporting room formula pillar recovery method is infused in a kind of
CN110030031A (en) * 2019-02-26 2019-07-19 天地科技股份有限公司 The method that coal column is left in a kind of longwell recycling house column type goaf

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SU567825A1 (en) * 1975-01-15 1977-08-05 Пермский Государственный Проектно-Конструкторский И Экспериментальный Институт Горного Машиностроения "Пермгидрогормаш" Method of filling-up undergrounf workings
CN101725352A (en) * 2009-12-04 2010-06-09 中国矿业大学 Method for filling solid and fully mechanizing and recovering room type coal pillar
CN101915100A (en) * 2010-08-24 2010-12-15 霍州煤电集团有限责任公司 Loess-filling coal-mining method in a coal mine
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

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SU567825A1 (en) * 1975-01-15 1977-08-05 Пермский Государственный Проектно-Конструкторский И Экспериментальный Институт Горного Машиностроения "Пермгидрогормаш" Method of filling-up undergrounf workings
CN101725352A (en) * 2009-12-04 2010-06-09 中国矿业大学 Method for filling solid and fully mechanizing and recovering room type coal pillar
CN101915100A (en) * 2010-08-24 2010-12-15 霍州煤电集团有限责任公司 Loess-filling coal-mining method in a coal mine
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

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016150188A1 (en) * 2015-03-25 2016-09-29 中国矿业大学 Method for fracturing filler wall left behind in adjacent coal-mining face
CN105240014A (en) * 2015-11-12 2016-01-13 中国矿业大学 Method for reclaiming house type remaining coal pillars based on filling and rebuilding of entry protection coal-pillar band
CN105240014B (en) * 2015-11-12 2017-09-15 中国矿业大学 A kind of reconstruction protection pillar band that fills reclaims the method that room formula leaves coal column
CN105422099A (en) * 2015-12-11 2016-03-23 太原理工大学 Method for completely filling two sides of pillars with repeated mining and residual mining area remaining coal pillars
WO2018045632A1 (en) * 2016-09-08 2018-03-15 中国矿业大学 Method for recycling room coal pillars by solid backfilling in coordination with artificial pillars
CN106321103A (en) * 2016-09-08 2017-01-11 中国矿业大学 Method for recycling room coal pillars by solid filling in synergy with artificial pillars
US10612378B2 (en) 2016-09-08 2020-04-07 China University Of Mining And Technology Method for recovering room-mining coal pillars by solid filling in synergy with artificial pillars
CN107882562B (en) * 2016-09-29 2020-06-05 河南理工大学 Method for realizing recovery of coal pillars arranged on opposite-pulling working face
CN107882562A (en) * 2016-09-29 2018-04-06 河南理工大学 Double face arranges the implementation method of Pillar Recovery
CN108087021A (en) * 2017-11-01 2018-05-29 中国矿业大学 A kind of method that filling coal mining recycling leaves coal column and water-resisting key strata is controlled to stablize
CN108915764A (en) * 2018-07-09 2018-11-30 中国矿业大学 A kind of method of reserved tunnel consolidated fill recycling room formula coal column
CN108915764B (en) * 2018-07-09 2019-04-30 中国矿业大学 A kind of method of reserved tunnel consolidated fill recycling room formula coal column
CN109113744A (en) * 2018-09-04 2019-01-01 中国矿业大学 A kind of external supporting substituted room formula pillar recovery method
CN109113744B (en) * 2018-09-04 2019-11-05 中国矿业大学 A kind of external supporting substituted room formula pillar recovery method
CN109139100B (en) * 2018-09-04 2019-12-20 中国矿业大学 Inner injection substitution type supporting room type coal pillar recovery method
WO2020048095A1 (en) * 2018-09-04 2020-03-12 中国矿业大学 Internal injection replacement support room type coal pillar recovery method
CN109139100A (en) * 2018-09-04 2019-01-04 中国矿业大学 Substituted supporting room formula pillar recovery method is infused in a kind of
RU2744499C1 (en) * 2018-09-04 2021-03-10 Чайна Юниверсити Оф Майнинг Энд Текнолоджи Method for extraction of coal pulses in chamber development with internal filling
CN110030031A (en) * 2019-02-26 2019-07-19 天地科技股份有限公司 The method that coal column is left in a kind of longwell recycling house column type goaf

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