Anti-runaway protection system and method for downward belt conveyor

Abstract

The invention discloses an anti-runaway protection system and method for a downward belt conveyor. The protection system comprises a damping device, a hydraulic execution subsystem and a control subsystem, wherein the damping device is used for braking running of the belt conveyor mounted on a downward inclined surface in parallel; the hydraulic execution subsystem is used for driving the damping device to move; the control subsystem is used for detecting and controlling the running state of the belt conveyor in real time; and the system is convenient to mount and operate. The protection method comprises steps as follows: 1, working condition information of the belt conveyor is acquired in real time, and the acquired information is stored and uploaded synchronously; 2, the revolving speed of a motor of the belt conveyor is analyzed and processed; 3, whether a power supply module of a power grid is powered off or not is judged; 4, the belt conveyor is controlled to brake and slow down intermittently; 5, the belt conveyor is controlled to shut down. The system is novel in design, the runaway phenomena of the belt conveyor can be detected and controlled, the belt conveyor can be protected to shut down stably under the condition of the power failure, the condition of runaway of the belt conveyor due to the dead weight of materials during the power failure can be avoided, and the use effect is good.

Description

technical field [0001] The invention belongs to the technical field of protection of belt conveyors, and in particular relates to an anti-running protection system and method for a down type belt conveyor. Background technique [0002] Downstream belt conveyor is an important transportation equipment in coal mine production. Its reliable and stable operation is of great significance to ensure the normal, safe and efficient production of the mine. When the belt conveyor needs to be stopped during operation, encounters a sudden power failure, or "speeding" phenomenon occurs due to excessive load, the conveyor is working in a very dangerous working condition at this time, and it is very easy to At present, there are three main ways to solve this problem: the first way is hydraulic braking system; the second way is electromagnetic braking system; the third way is damping plate braking system. The above three methods can only solve the braking problem, and have not completely so...

AI Technical Summary

Problems solved by technology

Lack of control and adjustment for the running speed of the belt conveyor; in addition, when the external power supply fails and the power is cut off, due to the gravity of the material itself and the relatively large running inertia, the belt conveyor is still running and causes a "speeding" phenomenon, while the above three Both methods are disabled and cannot work

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