Continuous coal mining process method of open-pit coal mine

Abstract

The invention relates to a continuous coal mining process method of an open-pit coal mine, the used main devices comprises a continuous coal mining machine, a walking type crushing machine of a continuous conveying machine unit, a bridge type transloading machine, a walking type transloading machine, an unloading car, a working face belt type conveyor, an outward transport heading belt type conveying machine and an outward transport machine lane belt type conveying machine, and the continuous coal mining process method adopts the continuous mining-continuous conveying way, and adopts the automatic mining, crushing, transloading, unloading and transportation. The coal mining method has advanced process, reasonable design, compact and continuous arrangement of the devices, safety, stabilityand reliability, high excavating efficiency, multi-stage transportation, smooth conveying and small occupied area, and can effectively improve the recovery rate of resources, reduce the consumption of fuel oil, reduce the carbon emission, be applicable to needs on low carbon, energy conservation and environmental protection and be a very ideal continuous coal mining process method of the open-pitcoal mine.

Description

Technical field [0001] The invention relates to a continuous coal mining process method in an open-pit coal mine, and belongs to the technical field of the application of coal mining equipment and coal mining methods. Background technique [0002] Opencast coal mines are mostly near-level deposits with storage characteristics such as multiple coal seams, thick coal seams, and thick overburden layers. The buried angle of coal seams is mostly below 10°, which are near-level or gently inclined coal seams. At present, the most commonly used coal mining methods are: Bucket electric shovel mining-truck transportation-self-moving crushing or centralized crusher crushing-belt conveyor conveying semi-continuous or intermittent coal mining technology. [0003] The above single-bucket electric shovel mining-truck transportation technology has been widely used because of its flexibility and adaptability; but compared with foreign advanced technology, it still has disadvantages such as small sc...

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Problems solved by technology

[0003] The above single-bucket electric shovel mining-truck transportation process has been widely used because of its flexibility and adaptability; however, compared with foreign advanced technologies, there are still disadvantages such as small scale, low industrial concentration, and single mining process. , and there are still problems such as high fuel consumption for truck transportation, serious environmental pollution, large area of ​​driving passage, difficult and time-consuming movement of centralized crushing stations, etc., which make mining costs high and economic benefits decrease, seriously affecting the long-term prospects of the mining area. In addition, the use of existing equipment to mine thin coal seams is more costly, causing most open-pit coal mines to give up mining thin coal seams with a thickness of less than 1 meter, resulting in waste of resources. Therefore, it is urgent to study effective mining technology and supporting equipment according to local conditions Equipped to meet the development needs of a low-carbon economy

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