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Coal rock cutting dust generation experiment system and method

An experimental system, coal and rock technology, applied in measuring devices, instruments, particle size analysis, etc., to achieve the effect of realizing intelligence and improving experimental efficiency

Inactive Publication Date: 2019-11-05
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the past, dust generation experimental devices were limited to crushing coal samples by hammer impact method or roller crusher, which is very different from the process of cutting and breaking coal / rock by roadheaders and shearer picks

Method used

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  • Coal rock cutting dust generation experiment system and method
  • Coal rock cutting dust generation experiment system and method
  • Coal rock cutting dust generation experiment system and method

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments, which are only used to explain the present invention and do not limit the protection scope of the present invention.

[0034] Such as figure 1 As shown, a coal rock cutting dust production experimental system includes a cutting part 1, an experimental condition regulation part 2, a dust collection part 3, a crushing form recording part 4, and a control and signal processing part 5.

[0035] Such as figure 2 , image 3 and Figure 4 As shown, the cutting part 1 includes a loading device 6 moving vertically downward, a pick 7 and a fixed frame 8, and the pressure applied by the loading device 6 is transmitted to the signal collection device 15 as a pressure signal, and recorded in the upper position in real time. In the machine 17, the fixed frame 8 is installed under the loading device 6, t...

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Abstract

The invention discloses a coal rock cutting dust generation experiment system which comprises a cutting part, an experiment condition control part, a dust collecting part, a breakage form recording part and a control and signal processing part. The cutting part comprises a loading device vertically moving downwards, cutting teeth and a fixed frame. The experiment condition control part comprises aconfining pressure loading device and a positive-pressure variable-frequency draught fan. The dust collecting part comprises a negative-pressure variable-frequency draught fan and a dust collecting filter membrane. The breakage form recording part comprises a high-speed dynamic analyzer and an infrared thermal imager. The control and signal processing part comprises a signal collecting device, aPLC module and an upper computer. The coal rock cutting and breaking dust generation simulation experiment under the conditions such as different coal rock samples, different cutting tooth types, different cutting parameters (invasion angles, cutting depths and cutting speeds) and different wind velocities can be developed, and the innovation means can be provided for physically simulating the cutting tooth coal rock breaking process and further studying the coal rock cutting dust generation mechanism.

Description

technical field [0001] The invention relates to the technical field of dust generation, in particular to an experimental system and method for dust generation by coal rock cutting. Background technique [0002] Dust is the number one occupational hazard faced by mining enterprises in production, widely causing occupational diseases such as pneumoconiosis. Coal cutting by mining machinery is the largest source of dust in mine operations. Mastering the process and characteristics of dust formed by coal rock crushing under load is the premise and basis for realizing scientific dust prevention and efficient dust removal. However, existing research is limited to mine dust prevention and control technology. It is still lacking, resulting in a lack of pertinence in the research and development and application of dust prevention and control technology, with half the effort. [0003] Carrying out physical simulation experiments of coal and rock cutting dust production is an essenti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/02G01N15/04G01N5/00G01N3/58
CPCG01N15/0205G01N15/04G01N5/00G01N3/58
Inventor 王和堂周文东杜云贺
Owner CHINA UNIV OF MINING & TECH
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