Coal mine goaf coal fire disaster early warning system

Abstract

The invention relates to the field of coal mine goaf early warning, in particular to a coal mine goaf coal fire disaster early warning system which comprises a ground monitoring center, a wireless monitoring base station and a plurality of multi-parameter wireless sensor nodes and is characterized by further comprising a temporary protection device. The temporary protection device comprises a single-side rotation driving mechanism, a positioning connector, a rotation pushing mechanism, a guide mechanism, a synchronous pushing mechanism, a first flat partition plate, a second flat partition plate, a first semicircular plate, a second semicircular plate and two rotation frames. When it is sensed that the gas content does not conform to the setting, the two temporary protection devices in the section are controlled to work, gas separation is conducted on the section, gas leakage is reduced, a large amount of dangerous gas exists in only one area, other areas are safe, the possibility that the gas is ignited is reduced, and the safety of the gas is improved. And enough time is reserved for workers to evacuate.

Description

technical field [0001] The invention relates to the field of early warning of goaf areas of coal mines, in particular to an early warning system for coal fire disasters of goaf areas of coal mines. Background technique [0002] Chinese patent application number: CN201710161210.2; discloses a high-density networked monitoring and early warning system for mine coal spontaneous combustion characteristic information, which includes multi-parameter wireless sensor nodes and wireless monitoring base stations; multi-parameter wireless sensor nodes mid-infrared remote control module, micro negative pressure The pump module, the 485 module, and the sound and light alarm module are all connected to the first single-chip microcomputer, the sensor module is connected to the first single-chip microcomputer, the first single-chip microcomputer is communicated with the first wireless ad hoc network module, and the first wireless ad-hoc network module is connected to the wireless monitoring ...

AI Technical Summary

Problems solved by technology

[0003] Although the system can make early predictions, in actual work, once the gas content does not meet the settings, it is often the possibility of gas leakage in the goaf of the coal mine. The gas is scattered, so that before the safety maintenance personnel arrive, the gas has filled the entire goaf body, making it difficult for maintenance personnel to perform maintenance, and it takes a lot of time to evacuate personnel. When the notification is not in place, there will be workers left In the goaf cavity, it is too dangerous, and this danger may come from gas drifting, which poses a danger to workers' breathing, and there is also a risk of gas being ignited if the gas drifting area is too long

Images