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A method of continuous mining in an open-pit mine

A mining method and technology for open-pit mines, which are used in open-pit mining, surface mining, and earth-moving drilling, etc., can solve the problems of unstable material flow and high equipment investment, and achieve the effect of improving equipment efficiency and effective operation time.

Active Publication Date: 2020-03-24
CINF ENG CO LTD
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Problems solved by technology

[0003] In order to solve the problems of excessive selection of equipment capacity, high equipment investment and unstable material flow caused by the layout of the traditional bucket wheel excavator process system, the present invention proposes a continuous mining method for open-pit mines, which realizes the cross-step operation of the equipment and reduces the equipment cost. Ineffective operation and downtime operation time to ensure continuous and stable ore supply to the concentrator

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  • A method of continuous mining in an open-pit mine
  • A method of continuous mining in an open-pit mine
  • A method of continuous mining in an open-pit mine

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Embodiment Construction

[0036] "Up" and "down" in the present invention are based on the orientation or positional relationship shown in the drawings. Take the two steps responsible for mining by a single wheel bucket as an example. The higher step is the upper step (upper level), and the lower step is the lower step (lower level).

[0037] Figure 1 to Figure 9 A schematic of a cyclic process is shown. Specifically, such as figure 1 , the bucket wheel excavator 1 excavates the first excavation zone from the tail 31 of the belt conveyor to the head 32, and when the excavation zone is exploited, the bucket wheel excavator unloads directly to the receiving trolley 33.

[0038] Such as figure 2 When the bucket wheel excavator 1 reaches the position of the head 32 of the belt conveyor, the first mining belt a is finished. The ramp 5, this part of the excavated material is transported out of the stope through the side-side auxiliary transportation channel.

[0039] Such as image 3 , the bucket whe...

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Abstract

The invention relates to a continuous mining method for strip mine. The continuous mining method comprises the following steps: providing one wheel-bucket excavator on a first step; providing a firstmovable belt conveying machine and a second movable belt conveying machine on the first step and a second step respectively; controlling a wheel bucket excavator mine in a reciprocating manner to oneside on which a lateral headpiece from one side which a tail is positioned till the mining for the plurality of even numbers of mining belts are filled; controlling the wheel-bucket excavator enter afirst initial working area of the second step; mining from one side on which the tail is positioned to one side which the lateral headpiece is positioned for reciprocating mining, repeating the mentioned steps till the mining on the even number of mining belts is finished; after the second step finishes the mining, controlling the wheel-bucket excavator enter a second initial working area; starting next mining, repeating the previous steps to realize the continuous mining for the strip mine. Compared with the prior art, when the mining method is adopted, the wheel-bucket excavator can work continuously, and continuous operation for the wheel-bucket excavator is ensured, the entered material can be used for keeping balanced and stable, meanwhile, the effective operation time is shortened greatly.

Description

technical field [0001] The invention relates to a continuous mining method for an open-pit mine, which belongs to the technical field of mining. Background technique [0002] Normally, the continuous process of bucket wheel excavator is often used for topsoil stripping operations in stripped internal drainage open pit mines. The mine under this working condition does not have high requirements on the stability of the material flow stripped by the bucket wheel excavator, as long as the topsoil stripping steps do not affect the lower horizontal ore extraction. Therefore, the bucket wheel excavator used in the actual selection of mining enterprises has a large capacity to avoid the impact of stripping delays on the ore. In order to simplify management, each bucket wheel excavator is only responsible for the mining of one horizontal platform and does not perform shovel adjustment operations. When the bucket wheel excavator excavates to a certain distance, the matching working f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/26E21C47/00
CPCE21C41/26E21C47/00
Inventor 昌珺
Owner CINF ENG CO LTD
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