1.Most open-pit mines in China are concave and the surface is uneven. After the material transported are lifted to the surface, the unloading level is different, which requires the level of the unloading point of corrugated sidewall belt conveyor with large inclination varies with the surface height.
2.There are more coal seams in the open-pit coal mine, so the position of receiving point of corrugated sidewall belt conveyor should be fully determined. When corrugated sidewall belt conveyor is adopted, the rationality of setting of receiving point should be fully demonstrated. Generally, it is considered to set the position of receiving point in the upper one third of the center of gravity in the mining coal seam, and then use two large inclination corrugated sidewall belt conveyors to set the position of receiving point in two places to reduce the transport distance.
3.The current situation of coal seams in China’s open-pit coal mines is mostly horizontal or near-horizontal except for inclined or gently inclined coal seams. In the mining process of inclined or gently inclined coal seam, the mining level keeps dropping, so the belt conveyor with large inclination angle is lengthened along with the mining level dropping. In horizontal or near-horizontal coal seam opencast coal mine, in order to obtain better economic benefits, the stripping is discharged into the goaf. With the continuous advancement of coal mining face and soil drainage project, the belt conveyor with large inclination angle is required to move continuously in the direction of advance.

4.The corrugated sidewall belt conveyor with large inclination used in the open-pit coal mine is generally set on the end side of the mining site, and the end site is provided with a large truck transport channel. There exists the problem of the intersection between the large dip angle belt conveyor and other transport systems, so the lower part of the large dip angle belt conveyor is required to meet the requirements for the passage of large transport trucks.
5.No matter the inclined coal seam or the exposed field coal mine near the horizontal coal seam, the mining depth of the coal seam varies. Due to the change in the mining depth of the coal seam, the lifting height of the corrugated sidewall belt conveyor with large inclination will also change accordingly.
The advantages of the application of the corrugated sidewall belt conveyor with large inclination in open pit.
1.Large lifting height, low operation cost. Combined with the characteristics of open-pit coal mine, the corrugated sidewall belt conveyor with large inclination can be installed on the end side of the excavation site, and the slope angle of the end side of the excavation site can generally reach more than 30 degree, so the corrugated sidewall belt conveyor can be laid along the end side of the excavation site. If conditions permit, the lifting height can be larger, the increase of the lifting angle shortens the material distance and reduces the operating cost.
2.Use electricity instead of oil to reduce fuel consumption. China is a country short of oil, the application of large angle belt conveyor instead of truck, in fact is the electric driving equipment instead of the oil driving equipment, with electricity instead of oil, reduce fuel consumption and improve economic benefits. At home and abroad, the research and development and manufacturing of corrugated sidewall belt conveyor has a long development and has been widely used in many industries, showing it continuous, efficient, low operating cost, environmental protection characteristics.