A method to improve the filling rate of ore body

A technology of roof connection rate and ore body, which is applied to filling materials, mining equipment, earth square drilling and mining, etc., can solve the problems of low filling rate and unsatisfactory filling effect, and achieve good water permeability, good application prospects and social benefits. Good value and filling strength

Active Publication Date: 2016-08-24
BAIYIN NONFERROUS GROUP
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Problems solved by technology

[0019] The purpose of the present invention is to provide a method for improving the filling rate of ore bodies, so as to solve the technical problems of low filling rate and unsatisfactory filling effect in the mine filling process existing in the prior art

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  • A method to improve the filling rate of ore body

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Embodiment Construction

[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0042] A method for improving the filling rate of ore bodies, comprising the following steps:

[0043] A. Arranging the stope: The stope is arranged in a "pin"-shaped structure. The upper layer of the "pin"-shaped stope is pressed down to the width of the layered approach to build a dam with a height of 0.5m. During the filling process, the upper layer is used to erect the veins The filling pipe 1 is used for filling, and the overflow water is easy to discharge.

[0044]B. Change the shape of the roof: the shape of the roof should be better suited to the needs of filling and roofing. The inclination angle of the roof and floor of the stope should be greater than the natural slope angle of the slurry to meet the needs of roofing. The roof should be set in an inclined shape and The inclination of the roof should be 8-15%. When the roof cannot be...

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Abstract

The invention discloses a method for improving the orebody rate of supporting pit roof. The method comprises the following steps: A, arranging a stope; B, changing the shape of a top plate; C, erecting a filling pipe and an exhaust pipe; D, collaring and charging; E, filling; F, dewatering; G, breaking the pipes; H, performing forcible pit roof supporting. According to the method for improving the orebody rate of supporting pit roof, certain arrangement and modification for the shapes of the slope and the top plate are performed, the filling pipe and the exhaust pipe are reasonably erected, appropriate filling materials and filling material slurry are selected for filling, and furthermore dewatering is performed in the filling process, so that the dryness degree is improved; by virtue of the breaking the pipes, multipoint blanking is formed; finally a local rock pillar, which is used for supporting the top plate, at the upper surface of the ore pillar is avalanched by virtue of millisecond blasting so as to realize forcible pit root supporting, so that compact forcible pit root supporting is realized. The method disclosed by the invention can be used for overcoming the adverse factors which influence the rate of supporting pit roof in a mine filling process in the prior art, is high in rate of supporting pit roof and good in filling strength and has favorable application prospect and social values.

Description

technical field [0001] The invention belongs to the technical field of mining, and in particular relates to a method for increasing the filling rate of ore bodies. Background technique [0002] Mining is the basic industry for the development and utilization of mineral resources. However, while the mining industry provides raw materials for human beings, it will inevitably disturb and destroy the earth's environment and bring safety hazards. With the rapid development of industrial society, the demand for minerals has increased rapidly, and the environmental damage and waste discharge caused by the exploitation and utilization of mineral resources have become quite serious environmental problems. Therefore, the filling mining method is more and more used in mines. It can improve the recovery rate of ore and reduce the mining dilution rate, and can reduce mine pressure, ensure mine production safety, reduce solid waste discharge and protect the surface from damage. , but the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F15/00
CPCE21F15/00
Inventor 陶再斌
Owner BAIYIN NONFERROUS GROUP
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