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Mining method of manganese ores

A mining method and manganese ore technology, which is applied in ground mining, earth square drilling, underground mining, etc., can solve the problems of high ore loss rate and single mining method, and achieve the effect of wide application range and reduction of ore loss rate

Inactive Publication Date: 2018-06-29
广西华洋矿源材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These mining methods are relatively simple, and the ore loss rate is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A kind of mining method of manganese ore of the present embodiment comprises the following steps:

[0019] (1) Mining area layout: divide several mining areas along the ore body trend, divide 7 ore blocks in each mining area, and then divide the ore blocks into mine rooms and ore pillars, and the ore body is divided into middle sections in the height direction, Each middle section is further divided into sections; the middle section is 60m high, and the section height is 20m; the ore block is 60m long and 60m wide; the mine house is 30m long and 20m wide; the ore pillar is square, long and wide , the height is 4m, and the distance between ore pillars is 10m.

[0020] (2) mining and cutting: mining and cutting include setting mining patios, contact roadways, transport roadways, electric rake tunnels, electric rake winch chambers and funnels; The specification of the quasi-raise is 2.0×2.5㎡; the connecting roadway leading to the mining area is excavated every 6m, and the...

Embodiment 2

[0024] A kind of mining method of manganese ore of the present embodiment comprises the following steps:

[0025] (1) Mining area layout: divide several mining areas along the ore body trend, divide 3 ore blocks in each mining area, and then divide the ore blocks into mine rooms and ore pillars, and the ore body is divided into middle sections in the height direction, Each middle section is further divided into sections; the middle section is 40m high, and the section height is 15m; the ore block is 40m long and 30m wide; the mine room is 20m long and 10m wide; the ore pillar is square, long and wide , height are 3m, and the distance between ore pillars is 5m.

[0026] (2) mining and cutting: mining and cutting include setting mining patios, contact roadways, transport roadways, electric rake tunnels, electric rake winch chambers and funnels; The specification of the quasi-raise is 1.5×2.0㎡; every 4m is excavated to connect the roadway leading to the mining area, and the sect...

Embodiment 3

[0030] A kind of mining method of manganese ore of the present embodiment comprises the following steps:

[0031] (1) Mining area layout: divide several mining areas along the ore body trend, divide 5 ore blocks in each mining area, and then divide the ore blocks into mine rooms and ore pillars, and divide the ore body into middle sections in the height direction, Each middle section is further divided into sections; the middle section is 50m high, and the section height is 18m; the ore block is 50m long and 50m wide; the mine house is 25m long and 15m wide; the ore pillar is square, long and wide , height are 3.5m, and the distance between ore pillars is 7m.

[0032] (2) mining and cutting: mining and cutting include setting mining patios, contact roadways, transport roadways, electric rake tunnels, electric rake winch chambers and funnels; The specification of the quasi-raise is 1.8×2.3㎡; the connecting roadway leading to the mining area is excavated every 5m, and the secti...

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Abstract

The invention discloses a mining method of manganese ores, and relates to the technical field of mining. The mining method includes the steps of mining area arrangement, accurate mining, cutting and backstoping. The mining area arrangement specifically comprises the steps that a plurality of mining areas are divided along the trend of ore bodies, each of the mining areas is divided into 3-7 ore blocks, and the ore blocks are divided into ore houses and ore columns. The ore bodies are divided into middle sections in the height direction, and the middle sections are divided into subsections. Thebackstoping is carried out from the bottom of the ore houses in a down-up and layered mode, the layered height is 2-3m, and ore caving, ventilation, partially ore drawing, ground leveling and floating stone removing are separately carried out at each of the layers. According to the mining method of the manganese ores, thin ore bodies can be stoped, thick and super thick ore bodies can be stoped,the application range is wide, the ore stoping rate is 79%, the rate of dilution is 12%, and the ore loss ratio is reduced.

Description

【Technical field】 [0001] The invention relates to the technical field of mining, in particular to a mining method of manganese ore. 【Background technique】 [0002] Manganese ore is one of the important resources for steelmaking and an important strategic resource for my country's national economic construction. However, the storage of manganese ore resources in my country is not rich, and the ore bodies are mainly thin layers, mostly gently inclined, and the mines are scattered. The order is chaotic, and most of the mines that can be mined are poor ore, not rich ore. The mining utilization rate is about 60%, which is very low, and the amount of waste is large. Therefore, there are many problems in the mining of manganese ore in our country. At present, the mining methods of manganese ore include empty field method, filling method and caving method. The open-field method is widely used in underground manganese mines in my country. Among the 15 mines in the statistics, 9 mines...

Claims

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Application Information

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IPC IPC(8): E21C41/22
CPCE21C41/22
Inventor 李文康张宸宇欧西江
Owner 广西华洋矿源材料有限公司
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