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Continuous slitting bag-filling room-and-pillar method back-mining pillar method in empty area

A technology of gob and ore pillar, which is applied in the field of continuous slotted bag filling room-pillar method in the field of gob back mining column method, can solve the problems of complex mining process, low mining efficiency and high mining cost, and achieves simple mining process and high mining efficiency. The effect of high column recovery and less allocation of packing costs

Active Publication Date: 2019-07-30
CHINA MINMETALS CHANGSHA MINING RES INST
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Problems solved by technology

[0010] The present invention provides a method of continuously stripping and bag-filling the empty area of ​​the room-and-pillar method to solve the problem of poor safety, large loss rate, complex mining process, low mining efficiency and problems of mining pillars in the existing room-and-pillar method. costly technical issues

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  • Continuous slitting bag-filling room-and-pillar method back-mining pillar method in empty area
  • Continuous slitting bag-filling room-and-pillar method back-mining pillar method in empty area
  • Continuous slitting bag-filling room-and-pillar method back-mining pillar method in empty area

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Embodiment Construction

[0033] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered below.

[0034] figure 1 It is a block flow diagram of the continuous strip bag filling room-pillar method empty area recovery mining pillar method of the preferred embodiment of the present invention; figure 2 It is a structural schematic diagram of the full filling method of empty space strips in a preferred embodiment of the present invention; image 3 yes figure 2 The A-A profile; Figure 4 It is a structural schematic diagram of the partial filling method of the empty space strip in the preferred embodiment of the present invention; Figure 5 It is a schematic diagram of the structure of the large-span empty space strip sub-strip filling method according to the preferred embodiment of the present invention.

[0035] Such as figure 1As shown, the continuous stri...

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Abstract

The invention discloses a continuous striping bag-filling room and pillar type gob pillar stoping method. The method comprises the following steps of a, according to the pillar and goaf conditions, dividing a goaf into goaf stripes and pillar stripes containing a plurality of pillars; b, filling the goaf stripes; c, after the goaf stripes at both sides of each pillar stripe are filled, stoping the pillars in the pillar stripes; d, repeating the steps b and c, and stoping the next pillar stripe; e, after all pillars in the goaf are stoped, performing post-goaf treatment on the pillar stripes. The method has the advantages that the stoping technology is simple, and the production efficiency is high; the recovery rate of pillars is high; the safety is good, and the environment-friendly effect is realized; the cost is low; the method is suitable for room and pillar type pillar stoping and goaf treatment, especially slow-tilting ultrathin to thin ores.

Description

technical field [0001] The invention relates to the technical field of pillar mining in mines, in particular to a method for back-mining pillars in the empty space of a continuous strip bag-type filling room-and-pillar method. Background technique [0002] The room-and-pillar method is used for mine recovery. In order to support the roof of the mining space, regular ore pillars are left in the empty field. According to the survey, according to the mining technical conditions, when the room-and-pillar mining method is used for mining, the amount of ore pillars left generally reaches 5-30% of the ore amount of the ore block, and when the ore value is not high, some can reach 40-60%. . [0003] The characteristic of mineral resources is non-renewable. With the continuous exploitation of mineral resources, geological reserves are decreasing year by year. The loss rate is extremely high, and if it is not recycled, it will cause a serious waste of resources. In order to increas...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/16E21F15/00
CPCE21C41/16E21F15/00
Inventor 赖伟
Owner CHINA MINMETALS CHANGSHA MINING RES INST
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