Emergency prevention and control system and method for coal belt fracture

Abstract

The invention discloses an emergency coal conveying belt fracture prevention and control system and method. The system comprises a belt conveyor remote control table and a plurality of prevention and control protection devices. Each prevention and control protection device comprises a detecting mechanism, a clamping machine and a controller. The method comprises the steps that firstly, the belt fracture sinking distance threshold value is set; secondly, a damping mechanism is initialized; thirdly, the real-time distance between an eddy current displacement sensor and a metal plate is detected and displayed; fourthly, whether a coal conveying belt is fractured or not is judged; fifthly, the current prevention and control protection device gives an alarm, and the coal conveying belt is locked; sixthly, fault information is transmitted; seventhly, the rest of prevention and control protection devices brake a belt conveyor; and eighthly, the belt conveyor is completely braked. According to the emergency coal conveying belt fracture prevention and control system and method, the coal conveying belt fracture information is inducted and obtained through the eddy current displacement sensor and the metal plate, positioning is accurate, induction is accurate, and applicability and reliability are achieved; and the damping mechanism is adopted for driving a vertical rod to emergently press the coal conveying belt, the coal conveying belt is clamped through the clamping machines, and running safety of the belt conveyor is protected.

Description

technical field [0001] The invention belongs to the technical field of prevention and control of coal belt fractures, and in particular relates to an emergency prevention and control system and method for coal belt fractures. 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 belt will slide down rapidly due to the fracture, and eve...

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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