Belt Conveyor Coal Transport Belt Slack and Fracture Early Warning Protection System and Method

Abstract

The invention discloses a relaxation and breakage early warning protecting system and method for a coal carrying belt of a belt conveyor. The system comprises a belt conveyor remote control table and a belt early warning protecting device. The belt early warning protecting device comprises a detection mechanism, a mechanical arm and a control box. The method comprises the following steps of: I, setting a relaxation sinking distance threshold value of the belt and the breakage sinking distance threshold value of the belt; II, initializing a shock-absorbing mechanism; III, detecting the real-time distance from an eddy current displacement sensor to a metal plate; IV, judging whether the coal carrying belt is relaxed or not; V, judging whether the coal carrying belt is broken or not; VII, performing audible and visual alarm and emergently pressing the coal carrying belt; VII, transmitting fault information; VIII, selecting the belt early warning protecting device and braking the belt conveyor; and VIIII, fully braking the belt conveyor. The system and method disclosed by the invention acquire the relaxation or breakage information of the coal carrying belt by an eddy current induction mode and are applicable and reliable, and the shock-absorbing mechanism drives a vertical rod to emergently press the coal carrying belt and the coal carrying belt is pressed by the mechanical arm to protect the belt conveyor.

Description

technical field [0001] The invention belongs to the technical field of slack and fracture early warning and protection of a coal transport belt, and in particular relates to a slack and fracture early warning protection system and method for a coal transport belt of a belt conveyor. Background technique [0002] An important link in coal mine production is the coal mine transportation system. At present, the coal mine transportation system mainly adopts coal belt transportation. In coal mine transportation, belt conveyors generally need to carry out long-distance, long working hours and heavy transportation. Due to problems such as uneven force on the belt, offset of coal falling position, and large transportation inclination angle during use, it may cause coal transportation problems. Belt slack, slipping, deviation, broken belt, etc. When the coal conveyor belt suddenly breaks due to quality problems such as overload, aging, and improper operation, the tight coal conveyor...

AI Technical Summary

Problems solved by technology

In coal mine transportation, belt conveyors generally need to carry out long-distance, long working hours and heavy transportation. Due to problems such as uneven force on the belt, offset of coal falling position, and large transportation inclination angle during use, it may cause coal transportation problems. Belt slack, slipping, deviation, broken belt, etc.

When the coal conveyor belt suddenly breaks due to quality problems such as overload, aging, and improper operation, the tight coal conveyor belt will slide down rapidly due to the fracture, and even fly out to hit the staff, and a large number of scattered coal lumps will also Threats to personnel and equipment, threatening the safety of personnel and damaging nearby equipment and facilities, causing huge economic losses

At present, the technologies that have been proposed are basically alarm devices for coal belt breakage, and the monitoring range is too wide to accurately determine the specific breakage point of the coal belt, which is not conducive to emergency treatment after the break

Moreover, most of the relevant technologies only have an alarm function, and there is no protection function for emergency treatment of coal belt fractures.

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