Off-tracking distortion protection control system for tubular belt conveyor

Abstract

An off-tracking distortion protection control system for a tubular belt conveyor comprises a field device unit, an electrical control cabinet unit and a communication unit. The field device unit comprises, at least, a belt real-time congruent point tracking laser sensor and a servo motor. The electrical control cabinet unit comprises a PLC, a servo driver and an electrical loop, wherein the PLC is connected with the servo driver through the electrical loop, and the servo driver is connected with the servo motor of the field device unit. The communication unit comprises a connecting cable, a GPRS wireless transmitter and a PROFIBUS cable. The off-tracking distortion protection control system conducts real-time offset monitoring on possibly-occurred belt deviation and distortion faults and the like of the tubular belt conveyor, automatically starts a deviation rectifying device through the PLC, achieves the purposes of belt deviation rectifying, thoroughly solves the problems of belt off-tracking and distortion faults and effectively ensures safe operation of the tubular belt conveyor. The PROFIBUS and GPRS data transmission facilitates installation of the whole protection control system, the protection control system is convenient to maintain technically, and debugging cost is saved.

Description

technical field [0001] The invention relates to the field of operation protection of tubular belt conveyors in power stations, coal mines, ports and other industries, in particular to a deviation protection control system for tubular belt conveyors. Background technique [0002] Tubular belt conveyors are widely used in power stations, coal mines, ports and other industries. Belt deviation and twisting during operation are common faults. The key parts of the faults are the top and tail of the tubular belt conveyor. Due to the heavy load on the top and the uneven feeding of the tail, the belt is twisted, which will cause the belt of the tubular belt conveyor to turn over at the head or tail, or fold above the roller, or even turn the folded surface of the belt. Phenomenon. The twist range of the belt forming section of the tubular belt conveyor is within ±30° based on the initial overlapping point, which is the normal offset value. If this limit is exceeded, the conveyor equ...

AI Technical Summary

Problems solved by technology

Due to the heavy load on the top and the uneven feeding of the tail, the belt is twisted, which will cause the belt of the tubular belt conveyor to turn over at the head or tail, or fold above the roller, or even turn the folded surface of the belt. Phenomenon

The twist range of the belt forming section of the tubular belt conveyor is within ±30° based on the initial overlapping point, which is the normal offset value. If this limit is exceeded, the conveyor equipment will not work properly or be damaged

This kind of failure will cause a large amount of materials in the conveying system to pour out, and the expensive belt will be completely damaged, which will further lead to the failure of the entire material conveying system and the shutdown of the device

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