Bucket Wheel Excavator Excavation Method for Open-pit Mine Flap

Abstract

The invention discloses a bucket wheel excavator excavation method used in open-pit ore side areas, comprising the following steps: adopting a bucket wheel excavator to excavate the first layer, wherein the operation mode of the first layer excavation is: bucket wheel excavation The machine rotates from the gob side to the inside of the step for excavation, and then turns from the inside of the step to the gob side. After completion, it advances forward, and the bucket wheel excavator repeatedly excavates several times; , the second layer of excavation adopts the operation method of the first layer of mining; The rotation angle of the bucket wheel arm to the gob side is greater than 34°; after the third layer of excavation is completed, it enters the next cycle. The bucket wheel excavator mining method of the present invention can make the bucket wheel excavator work more adaptable and work efficiently under special conditions in the open-pit ore side area.

Description

technical field [0001] The invention relates to the technical field of open-pit mining, in particular to a bucket-wheel excavator excavation method used in the open-pit ore flaking area. Background technique [0002] In the production process of open-pit mines, due to factors such as geological structure, step height, and rainfall, it is easy to form sidewalls locally, and the slope angle of steps slides from 47° to 10°-30°. When working, it is combined with bucket wheel excavator, loader, cable hopper car and belt conveyor. [0003] However, the existing bucket wheel excavator excavation method has the following defects: the bucket wheel excavator adopts layered operation, and the material on the upper part of the step will slide to the lower part due to the occurrence of a bumper on the working face, and the slope angle of the step at the bumper area is small. The distance from the steps is far away, and when the angle of rotation to the gob side is large when the lower m...

AI Technical Summary

Problems solved by technology

[0003] However, the existing bucket wheel excavator excavation method has the following defects: the bucket wheel excavator adopts layered operation, and the material on the upper part of the step will slide to the lower part due to the occurrence of a bumper on the working face, and the slope angle of the step at the bumper area is small. The distance from the steps is far, and when the angle of rotation to the gob side is large when the lower material is excavated, the equipment ladder of the bucket wheel excavator will collide with the steps, causing equipment damage

Moreover, due to the limitation of the working space, the bucket wheel excavator in the gang area cannot fully extract the

At the same time, backhoes and trucks need to cooperate in advance, resulting in a waste of equipment capacity and affecting the operating efficiency of the bucket wheel excavator, and the adaptability and flexibility of the equipment in the gang area is poor

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