煤矿综采工作面刮板输送机变频调速系统研究
Research on Frequency Control System of Scraper Conveyor in Fully Mechanized Mining Face of Coal Mine
摘要:
本文针对煤矿综采工作面装煤量不稳定，刮板输送机速度固定不变，导致不仅不能随煤量增大而增加单位时间运量，而且又造成大量电能浪费的问题，提出有针对性的控制方案，即控制链速随煤量的变化而变化，分析解决多电机功率平衡问题，利用PLC等实现节能自动模糊控制。同时通过对刮板运输机加装变频装置，帮助煤矿解决频繁断链问题，提高系统安全性及可靠性。
Abstract:
In this paper, the coal loading in the fully mechanized coal mining face is unstable, and the speed of the scraper conveyor is fixed, which not only can’t increase the traffic volume per unit of time with the increase of coal volume, but also cause a large amount of electric energy waste. For this problem to propose targeted control plan, that is, the control chain speed changes with the change of coal volume, which analyzes and solves the problem of multi-motor power balance, and achieves energy-saving automatic fuzzy control by using PLC. At the same time, the frequency conversion device is installed on the scraper conveyor to help the coal mine solve the problem of frequent chain breaking and improve the safety and reliability of the system.
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