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A Downward Layered Horizontal Approach High Sectional Filling Mining Method

A filling mining method and approach technology, which is applied in underground mining, filling, surface mining, etc., can solve the problems of far distance between the slide shaft and the ore body, high driving pressure, and low production efficiency

Active Publication Date: 2021-05-11
JINCHUAN GROUP LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] (2) The panel turns quickly, resulting in abnormal production organization of the panel and affecting the production capacity of the panel;
[0006] (3) The excavation pressure of the excavation project is high, which may easily cause excavation imbalance;
[0007] (4) The chute is relatively far away from the ore body, and the ore output distance is long, resulting in low production efficiency;
[0008] (5) The amount of quasi-projects is large and the investment is large

Method used

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  • A Downward Layered Horizontal Approach High Sectional Filling Mining Method
  • A Downward Layered Horizontal Approach High Sectional Filling Mining Method
  • A Downward Layered Horizontal Approach High Sectional Filling Mining Method

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] like figure 1 , figure 2 , image 3 As shown, a downward layered horizontal approach high-section filling mining method includes the following steps:

[0030] Step 1) Divide the ore block: Divide the ore body into the middle section according to the vertical direction. Each stratum divides the approach within the stratum. The approach width is 4m~5m and the length is 50m~70m. The panel is divided along the ore body trend. The panel area is divided according to the principle of equal area. body level thickness;

[0031] Step 2) Accurate cutting: Excavate the middle vein-piercing transportation roadway 13 and the middle vein-piercing roadway 14 at the bottom of the middle section along the vein and piercing direction, and excavate along the vein and piercing direction at the top of the middle section to fill the return air duct 12 and piercing vein ...

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Abstract

The invention discloses a mining method for high-section filling with downward layered horizontal approach, which specifically includes the division of ore blocks, mining and cutting, back mining, stope ventilation, stope filling, and so on, mining the entire section Ore body; the invention increases the section height, the number of mining floors and the volume of section mining, prolongs the service life of the panel, and solves the problem of panel excavation imbalance. Six sections, reducing the construction of sections, and reducing the construction volume of the middle section by about 3500m / 72000m 3 , which greatly saves the investment in mine engineering construction. After the section height is increased, the service life of the section is extended, the contradiction of section mining imbalance is alleviated, and the pressure of section construction is reduced.

Description

technical field [0001] The invention belongs to the technical field of mining in non-ferrous mines, and in particular relates to a high-section filling mining method with downward stratification and horizontal approach. Background technique [0002] The downward layered horizontal approach cemented filling mining method is a mature mining method. The ore body mined is thick, unstable and broken. It has high recovery rate, low dilution rate and good safety. With the characteristics of high degree of mechanization and large production capacity, it is widely used in non-ferrous underground mines in my country. [0003] But existing this mining method concretely has following shortcoming: [0004] (1) Small amount of ore in each section, short service life of the panel, and short turnaround period of the panel; [0005] (2) The panel turns quickly, resulting in abnormal production organization of the panel and affecting the production capacity of the panel; [0006] (3) The ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/22E21F15/00E21F1/00
CPCE21C41/22E21F1/00E21F15/00
Inventor 张利寇永渊陈仲杰马柯王登玉
Owner JINCHUAN GROUP LIMITED
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