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Method for conveying coal in end slope laneway in open pit coal mine

A technology of open-pit coal mines and roadways, which is applied in open-pit mining, earthwork drilling, special mining, etc. It can solve problems that affect the economic benefits of enterprises, increase transportation distances, and increase operating costs, so as to shorten transportation distances and reduce pollution. , the effect of reducing transportation costs

Inactive Publication Date: 2010-03-03
中煤科工集团沈阳设计研究院有限公司
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Problems solved by technology

This will increase the transportation distance and require more transportation equipment, thus increasing the project investment and operating costs during production, and affecting the economic benefits of the enterprise

Method used

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  • Method for conveying coal in end slope laneway in open pit coal mine

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Embodiment Construction

[0011] In the coal seam where the end side 1 of the open-pit pit is located, a transport roadway is continuously extended with the advancement of the stripping working face to become the side side roadway 2. It is connected with the ground transportation system 6, that is, the open-pit, the connecting roadway, the side roadway, the inclined shaft, and the ground transportation system are connected in sequence. Determine the belt conveyor with the corresponding bandwidth, and the cross-sectional dimensions of the connecting lane, side lane and inclined shaft are determined according to the technical parameters of the belt conveyor with different bandwidths. The coal transportation process is as follows: After the coal is crushed by the crushing station in the pit → the shaft or connecting lane → the side roadway → the inclined shaft → the ground transportation system. Coal is collected by single-bucket excavator and transported by dump truck to the crushing station in the pit. ...

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Abstract

The invention provides a method for conveying coal in an end slope laneway in an open pit coal mine and solves a technical problem that transport distance is increased as a mountain road or returningroad is built to connect the base of the slope and the ground surface which cannot be connected by neither a railway nor a highway in a straight line due to a big ratio of the end slope of the open pit coal mine. The key points of the method include: an end-slope laneway is built on the end slope of the open pit coal mine and is communicated with the inside of the pit through a jack shaft or a connection and communicated with a ground transport system through an inclined shaft; belt conveyers are paved in the jack shaft or connection, the end-slope laneway and the inclined shaft; and a coal transport process comprises: a crushing station in the pit for crushing coal, the jack shaft or connection, the end-slop laneway, the inclined shaft and the ground transport system. The method has the characteristics of reducing coal transport distance, making full use of coal resources on end slope of the open pit coal mine.

Description

technical field [0001] The invention relates to a method for transporting coal in an open-pit coal mine, in particular to a method for transporting coal in an open-pit coal mine side roadway which shortens the transport distance and saves investment and operating costs. Background technique [0002] The coal extracted from the open-pit coal mine is transported from the open pit to the ground, usually by railway or truck from the bottom of the pit to the ground along the side rails. Due to the large slope of the end side, neither the railway nor the road can lead to the ground in a straight line from the bottom of the slope, but a winding road or a return road is built to reduce the slope. This will increase the transportation distance and require more transportation equipment, thereby increasing the project investment and operating costs during production, and affecting the economic benefits of the enterprise. Contents of the invention [0003] In order to overcome the de...

Claims

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Application Information

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IPC IPC(8): E21C47/00
Inventor 王振平王昌禄丛德俊王忠山方林
Owner 中煤科工集团沈阳设计研究院有限公司
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