Automatic experimental device for measuring coal firmness coefficient and measuring method

Abstract

The invention discloses an automatic experimental device for measuring a coal firmness coefficient and a measuring method. The device comprises a raw coal crushing mechanism, a prototype sample screening mechanism and a sub-packaging mechanism, wherein the raw coal crushing mechanism is used for crushing raw coal to obtain mixed prototype samples; the prototype sample screening mechanism is used for screening the mixed prototype samples to obtain screened prototype samples; and the sub-packaging mechanism is used for sub-packaging the screened prototype samples with the standard weight into sample grooves. The device further comprises an impact mechanism, a final sample screening mechanism and a height measuring mechanism, wherein the impact mechanism is used for controlling a heavy hammer to impact the screened prototype samples sub-packaged in the sample grooves to obtain impact prototype samples; the final sample screening mechanism is used for controlling a sample screen to screen and impact the prototype samples to obtain final samples; and the height measuring mechanism is used for detecting the height of the final samples in a metering cylinder. The device also comprises a controller module which is used for controlling crushing, sub-packaging, impacting, final sample screening and measuring operation of the device. The controller module is matched with the mechanisms, so that the operation complexity of workers is greatly reduced, the experiment efficiency is improved, and the working intensity and the body health burden of experimenters are reduced.

Description

technical field [0001] The invention relates to the field of coal firmness coefficient measurement, in particular to an automatic experimental device and a measurement method for coal firmness coefficient measurement. Background technique [0002] At present, the measurement methods and experimental devices for coal firmness coefficient are carried out according to "GB / T23561.12-2010 Coal and Rock Physical and Mechanical Properties Determination Method Part 12: Coal Firmness". Both the points and measurements need to be manually operated, resulting in low efficiency experiments. Especially in the crushing and screening process, there are problems such as laborious lifting of the weight and a large amount of coal dust, which will undoubtedly increase the work intensity and physical health burden of the experimenters. Contents of the invention [0003] Aiming at the problems in the above-mentioned prior art, the present invention provides an automatic experimental device an...

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Problems solved by technology

[0002] At present, the measurement methods and experimental devices for coal firmness coefficient are carried out according to "GB/T23561.12-2010 Coal and Rock Physical and Mechanical Properties Determination Method Part 12: Coal Firmness". Manual operation is required for the points and meas

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