Research on Equipment Supporting Technology for Ultra Large Mining Height Fully Mechanized Mining and Transportation System
It is equipped with three machines on the working surface:"coal shearer,scraper conveyor,hydraulic support",three machines on the working surface:"reprinter,crusher,belt conveyor",as well as power supply system,liquid supply system,control system and communication system.Coal machinery equipment is an important support for the development of the coal industry.This project aims to meet the supporting requirements for fully mechanized caving mining equipment for extra-thick coal seams and large mining heights.It focuses on high reliability,long life,automation,and intelligent technology.It develops a front conveyor with an installed power of 2×2 000 kW and an installed power of 3×1 600 kW rear conveyor and supporting transfer machine and crusher are super heavy-duty,large-capacity,automated,intelligent,high-reliability mechanized working surface complete set of conveying equipment,and the transfer machine has been inspected through problems discovered during the transportation process.Corresponding upgrades ensured that the coal blocks were smoothly unloaded on the chute transfer machine,minimizing coal return;the innovative development of a belt self-moving support device enabled the device to move forward on its own and adjust the support height,effectively reducing the need for belt.The number of times the middle frame of the machine has been dismantled.The multi-machine heterogeneous coupling and independent intelligent speed regulation system not only provide convenient operation and control means,but also save the energy consumption of the machine.The technological breakthrough in the fully mechanized caving mining and transportation system for large mining heights meets the mining needs of fully mechanized caving working faces in extra-thick coal seams with 15 Mt/a or more.
ultra large mining heighttransportation equipmentsafety and securityengineering application
NETL
NSTL
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