Among them, the coal wall gas source includes the working face coal wall, belt haulage roadway coal wall, and air-return roadway coal wall; mining coal gas sources include the cutting of coal by a shearer and its transportation by a scraper conveyor
from front to rear.
The positioning and attitude information of the shearer determines the state of the corresponding scraper conveyor
[1-3] and the corresponding hydraulic supports ; therefore, monitoring and determination of the shearer's running information are of significance with regard to realizing automated operation of three machines [5, 6].
There, fines are removed via a scraper conveyor
and discharged to a scrap bin.