Underground coal mining device and coal mining method

A technology of a coal mining device and a coal shearer, which is applied in the directions of underground mining, surface mining, earth-moving drilling, etc., can solve the problems of poor dust removal effect, smashing, and poor effect, etc.
CN111648770BActive Publication Date: 2022-01-11HENAN INST OF ENG
15 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HENAN INST OF ENG
Publication Date
2022-01-11

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More