Method for achieving ore transportation through open-pit mine slope adit and vertical shaft truck lifting system

Abstract

The invention discloses a method for achieving ore transportation through an open-pit mine slope adit and a vertical shaft truck lifting system, and belongs to the technical field of open-pit mine material transportation. The problems that large space in a pit is occupied due to the fact that a crushing station needs to be arranged in the pit and belt conveyor channels need to be built due to thefact that a belt conveyor is adopted for transportation in the prior art, and efficiency of a mineral conveying mode mainly adopting a heavy-load truck is greatly reduced are solved. The method is characterized in that one adit is built at the bottom of a slope of an open-pit mine, a double-lane load-carrying trolley rail is laid on a truck transportation channel built on the ground of the adit, and a right side load-carrying trolley and a left side load-carrying trolley are arranged on the load-carrying trolley rail; and a vertical shaft is built at the ground safety position outside the boundary of the open-pit mine, the vertical shaft is perpendicular to the adit, the bottom of the vertical shaft communicates with the adit, and the vertical shaft truck lifting system and a programmablecontrol system are built. The method for achieving ore transportation through the open-pit mine slope adit and the vertical shaft truck lifting system has the beneficial effects that the crushing station does not exist in the pit, the belt conveyor channels do not need to be built, and the belt conveyor does not need to be arranged, so that engineering cost is reduced, maneuverability of the heavy-load truck is reserved, transportation efficiency is improved, and operation cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of open-pit mineral material transportation, and in particular relates to a method for realizing ore transportation by an open-pit mine side adit and shaft truck lifting system used for conveying deep ores and stripped objects in an open-pit mining excavation field. Background technique [0002] As the demand for natural resources continues to grow, open-pit mining continues to develop towards large-scale development. How to transport the deep ores and strippings that have been mined in the open-pit mining field to the ground is a technical problem that must be solved. In the existing technology, the traditional transportation methods include road transportation or combined transportation. The most commonly used equipment for road transportation is dump trucks. The specific forms of combined transportation include combined transportation of crushing stations and belt conveyors, combined transportation of skip...

AI Technical Summary

Problems solved by technology

[0003] One is to use the belt conveyor for transportation, which requires the ore to be small in size. The ore after blasting needs to be further crushed before it can be transported by the belt conveyor. Therefore, a crushing station needs to be set up in the pit to make the material meet the conveyor requirements of the belt conveyor, thus reducing the system cost. Mobility, the crushing station also occupies a large space in the pit, and the construction cost of the crushing station is relatively high. When a mobile crushing station is used, the moving work of the crushing station is also very complicated;

[0004] Second, it is necessary to rely on a stable side to build the belt conveyor road to meet the needs of the belt conveyor layout;

[0005] The third is to transport through the belt conveyor. In addition to the power consumption of the conveyed materials, the power consumption of the belt conveyor system itself is also relatively large. Moreover, the ordinary belt conveyor is limited by the dynamic accumulation angle of the material and the friction coefficient between the material and the belt. , the lifting inclination angle can only be around 18°. For the belt conveyors that generally convey bulk materials, the maximum conveying lifting angle is required to be no more than 16°, resulting in a large area for the layout of the belt conveyor, a large amount of engineering, and a long conveying route.

If the inclination angle of the belt conveyor is increased, the force of the material falling downward during the transportation process will increase, and the phenomenon of material scattering will be serious. When the ore with high hardness is transported, the belt wear will be large and the aging will increase, which will increase the maintenance of the equipment. volume and maintenance costs;

[0006] The fourth is to directly use heavy-duty trucks for transportation. As the climbing height increases, the return road becomes longer and longer, which greatly reduces the efficiency of heavy-duty truck-based mineral transportation methods.

This utility model provides that the lifting frame is driven by a linear motor to move up and down, so as to realize the parking and lifting of general vehicles such as cars. The driving power of the lift is small, and the deep ore and stripped material transportation in the open-pit mine excavation site, if heavy-duty trucks are used for transportation, the heavy-duty trucks used are generally 90T mining dump heavy-duty trucks, with a full load of 90 tons and an empty load. The mass is 28 tons, and the overall dimensions are 8710mm long, 3504mm wide, and 4250mm high. and translation components are unable to meet the lifting needs of such heavy-duty trucks

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