A self-moving driving bridge for connecting the open-pit mine stope and the inner dump

Abstract

A self-moving driving bridge for connecting an open-pit mine stope and an internal dump, the invention belongs to the technical field of self-moving driving bridges, including a main bridge deck top plate, a main bridge deck side plate, a lifting platform, and side guard plates , the first hydraulic cylinder, the support hydraulic cylinder, the folding bridge deck on the stope side, the folding hydraulic cylinder on the stope side, the first folding bridge deck on the dump side, the folding hydraulic cylinder on the dump side, the second folding bridge on the dump side surface, the first side guard of the stope, the second side guard of the stope, the third hydraulic cylinder, the first side guard of the dump site, the second side guard of the dump site, and the third side guard of the dump site Side guard, the fourth hydraulic cylinder, the fifth hydraulic cylinder, the crawler traveling mechanism and the driver's cab; the part of the steel structure that should have been piled up with loose earth and stones has been changed into an integral self-moving steel structure. There is no need for secondary stripping when the coal is pressed under the subsequent mining structure. Since the driving bridge needs to be relocated many times, the cost of secondary stripping is greatly saved.

Description

technical field [0001] The invention belongs to the technical field of self-moving vehicle axles, and in particular relates to a self-moving vehicle axle used for connecting open pit stopes and inner dumps. Background technique [0002] In order to solve the problem of the increase in the inner discharge distance caused by the long working line when the inner dump of the near-horizontal open-pit mine adopts the tracking mining, most of the near-horizontal open-pit mines use an earth-rock bridge between the stope and the inner dump. to reduce the distance of the solution. The schematic diagram of the scheme is attached figure 1 , see attached step section figure 2 . The accumulation angle of the earth-rock dump bridge is the natural repose angle of the loose materials, which is 33°, the side slope angle of the stope side is the coal step slope angle, which is 70°, and the side slope angle of the dump site is the loose material step slope angle. Take 33°. This solution e...

AI Technical Summary

Problems solved by technology

This solution effectively solves the problem of excessive transport distance when the working line is too long. However, if the coal steps corresponding to the earth-rock discharge bridge need to be mined, there will be a large number of secondary stripping, resulting in increased stripping volume and stripping costs.

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