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Filling mining method of near-horizontal ore body

A backfill mining and ore body technology, applied in the fields of backfill, ground mining, mining equipment, etc., can solve the problems of high ore recovery rate, small surface damage, large panel production capacity, etc., and achieve high ore recovery rate and filling. The effect of fast bonding and many drainage points

Inactive Publication Date: 2015-03-25
GUIZHOU CHENHUIDA MINING ENG
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to provide a near-horizontal ore body filling mining method, which overcomes the shortcomings of the existing conventional room-and-pillar mining method, especially for the mining of near-horizontal thin ore bodies, and achieves high ore recovery and panel production. Large capacity, effective control of the roof of the goaf, the purpose of less destructive surface, and at the same time solve the discharge problem of some phosphogypsum, alleviate the pollution of phosphogypsum to the environment and occupy land resources

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] When mining the ore blocks in a mine in Kaiyang, Guizhou, the ore body dip angle is about 5°, and the concrete column roof protection mining method is adopted. The exposed area of ​​the empty field is large, the hidden danger of empty area collapse is large, and the cost of concrete column support is high. Low work efficiency.

[0025] Now adopt the near-horizontal thin ore body mining method provided by the invention to carry out filling and mining of the ore body. Firstly, carry out the mining work: construct a mining level road every 42.6 meters along the ore body direction, and adopt the level road anchor net support; cutting work: mine the level road in the vein, and follow the ore body inclination every 23 meters The construction cuts up the mountain and connects with the upper and lower mining level roads to form a large mining house with...

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Abstract

The invention discloses a filling mining method of a near-horizontal ore body. The method comprises the following four steps: (1) preparing mining, namely digging a vein-following horizontal roadway in the trend of the ore body; (2) cutting, namely perpendicularly constructing an upward incision to a mining preparing horizontal roadway in every certain distance in the mining preparing horizontal roadway, and also constructing two cutting horizontal roadways in the trend in the upward incision; (3) stopping, namely performing shallow hole drilling and blasting on the two sides of the upward incision; (4) filling mill tailings, namely filling a stopped mining area. According to the method, the situation that the stopping and the filling for all ore pillars must be reserved in a traditional mining method is realized, the recovery rate of ore is improved, besides a guag is completely filled, and a geologic hazard caused by a mining activity is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of mining underground metal and nonmetal mines, and in particular relates to a mining method for filling a near-horizontal ore body. Background technique [0002] At present, the room-and-pillar mining method is widely used in the mining of gently inclined ore bodies. This method is generally divided into regular mine rooms and ore pillars along the strike or inclination, and is an open-field mining method in which mining operations are carried out in the mine rooms. The goaf is generally not treated, and a large number of point ore pillars or continuous ore pillars are left. The ore pillars account for a large proportion of the ore volume and these pillars are generally not recovered (single ore pillars account for 15% to 20%, and continuous ore pillars account for 15% to 20%. Columns account for 40%, and it is difficult to recover, so the loss of ore is large. [0003] Ore is a non-renewable resource. In...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/16E21F15/00
CPCE21C41/16E21F15/00
Inventor 龙秀才王学杰陈发吉杜昌伦杨飏白智鹏
Owner GUIZHOU CHENHUIDA MINING ENG
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