Underground coal mining device and coal mining method

Abstract

The invention relates to an underground coal mining device, which comprises a coal shearer, a rocker arm of the coal shearer is fixedly connected to a dust removal hood, and the dust removal hood comprises four side surfaces: an upper side, a lower side, a left side and a right side; The upper dust removal board is provided with atomizing nozzles, the lower side is provided with a lower baffle, the lower baffle is provided with a lower atomizing nozzle, the left and right side panels are provided with left and right baffles, and the inner sides of the left and right baffles are provided with dust removal ports. The outer side of the baffle is slidingly connected to the left and right dust removal boards, and the left and right dust removal boards are equipped with atomizing nozzles. The PLC control system receives the monitoring signals of the temperature sensor, gas concentration sensor, pressure sensor and dust concentration sensor, and compares them with the set value to control the LED light. With changing the display state to transmit the current state of each signal, the invention combines water spraying and dust removal with adsorption and dust removal, and the dust removal effect is good. At the same time, the safety value and threshold value are set, and the direction with hidden dangers can be checked in time to better solve the mine safety problem. , to improve the safety of underground coal mining.

Description

technical field [0001] The invention relates to an underground coal mining device and a coal mining method. Background technique [0002] As one of the countries with the most abundant reserves of coal resources, my country regards coal as one of the most widely used energy sources in the energy structure. As an important basic energy and industrial raw material in China, coal has greatly promoted the rapid development of my country's coal mining industry, and indirectly accelerated the speed of the industrialization of Wohuo. [0003] In the current underground mining, there are still great potential safety hazards. First of all, in the process of coal mining, dust removal is mainly carried out by sprinkling water. To prevent the nozzle from being smashed by coal, the nozzle is far away from the drum, and the dust removal effect is not good, resulting in heavy dust. On the one hand, the workers in the mine have taken protection in time, and they have already inhaled too mu...

AI Technical Summary

Problems solved by technology

[0003] In the current underground mining, there are still great potential safety hazards. First of all, in the process of coal mining, dust removal is mainly carried out by sprinkling water. To prevent the nozzle from being smashed by coal, the nozzle is far away from the drum, and the dust removal effect is not good, resulting in heavy dust. On the one hand, the workers in the mine have taken protection in time, and they have already inhaled too much dust. On the other hand, the dust in the mine If the concentration is too high, there is a great potential safety hazard. Finally, although there is an alarm system under the mine, on the one hand, the noise is very heavy during coal mining, and the effect of relying on the sound alarm is not good. On the other hand, the alarm has reached the threshold. There is no time to evacuate and it is easy to cause accidents

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