Automatic monitor method and device for safety of mining headframe

Abstract

The invention relates to a method and device for automatically monitoring the safety of a mine derrick. The invention provides a measuring baffle on the derrick, and uses a displacement sensor installed on the gravity pendulum and perpendicular to the gravity pendulum to detect the distance between the measuring baffle and the displacement sensor. Relative displacement, the displacement sensor sends the detected signal to the signal conditioning circuit for filtering, amplification and shaping, and isolation processing, and the signal output by the signal conditioning circuit is sent to the lower computer for data collection; Internal telephone line communication; the upper computer converts the measurement data received from the lower computer into actual displacement values ​​after calculation, and then displays, stores or prints; the upper computer compares the measurement results with the set limit value, if the measurement If the result exceeds the limit value, the upper computer will automatically alarm. The invention can timely and reliably detect the inclination of the derrick and the sky wheel, effectively prevent the occurrence of safety accidents of the derrick, ensure the safety of mine production, and has good application prospects.

Description

technical field [0001] The invention relates to a method and a device for automatically monitoring the safety of a mine head frame. Background technique [0002] Mine headframe is one of the most important equipment in mine production. It is responsible for the important task of lifting ore and transporting production personnel, and its safety and reliability have always been the focus of attention. Once an accident occurs on the derrick, the consequences will be extremely serious, not only causing heavy losses to national property, but also causing heavy casualties. At the same time, derrick safety accidents will also lead to the shutdown of mines, which not only cause heavy economic losses, but also have extremely bad social impacts. [0003] At present, the geometric observation method is adopted for the safety monitoring of the mine derrick at home and abroad, that is, to select several reference points, and to regularly observe the inclination of the derrick and the l...

AI Technical Summary

Problems solved by technology

However, this regular observation method monitors once every few months. In most cases, the regular measurement once every few months cannot reflect the inclination of the derrick and sky wheel in time, and the effect of preventing accidents is not obvious.

Moreover, the measurement datum points of geometric observation are difficult to select and establish, which seriously affects the popularization and use of geometric observation methods in mines.

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