An automatic lifting control system of a large coal belt conveyor

Abstract

A large coal belt automatic lifting control system, including a lifting mechanism matched with the head of the belt conveyor, an electric drive device and a control device for the lifting mechanism of the head of the belt conveyor, is characterized in that four Detect the grounding switch device and two high and low limit switches. When the distance between the head of the belt conveyor and the coal surface is greater than 80cm, the head of the belt conveyor will descend; when the distance between the head of the belt conveyor and the coal surface is less than 40cm, the head of the belt conveyor will go up. The present invention reduces the misoperation caused by human operation through the control of electrical components, can adjust the distance between the belt machine head and the coal surface in time, reduces the broken rate of coal, improves the lump carbon rate, and increases the benefit. At the same time, the present invention can The labor intensity of the operator can be reduced, the operation is reliable, the accuracy is high, and the hidden danger of casualties is reduced.

Description

technical field [0001] The invention relates to the field of belt conveyor control systems, in particular to a large coal belt automatic lifting control system. Background technique [0002] The position of the big coal nodding belt machine head and the lump coal bunker mouth is adjusted by the inspection personnel to manually activate the control button of the return column winch to adjust the height of the belt machine head and the coal drop point. According to the requirements, its height should not be greater than 80cm. If the staff on duty has a weak sense of responsibility and does not adjust the distance between the large coal belt head and the coal drop point in time, the damage rate of lump coal will be increased and the lump coal rate will be reduced, especially in night shifts. The situation is particularly prominent. When the distance between the machine head and the coal drop point is less than 40cm, if the manual adjustment is not performed in time, it will ca...

AI Technical Summary

Problems solved by technology

When the distance between the machine head and the coal drop point is less than 40cm, if the manual adjustment is not carried out in time, it will cause the lump coal to wear the belt and damage the mechanical accident of the lower roller.

Manually operate the belt up and down, the operator must observe the distance between the machine head and the coal surface at any time, the requirements for the operator are high, and the inertia of the person itself cannot achieve the expected goal in a timely and effective manner

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