Research on automatic drawing control system on fully-mechanized coal face with sublevel caving
NIU Jianfeng
Abstract：In view of problem of low production efficiency of artificial drawing method on fully-mechanized coal face with sublevel caving,an automatic drawing control system was studied.Sonic sensors,vibrating sensors and ash sensors are installed on hydraulic supports.Through artificial demonstration operation and machine learning to memory sensor signals,sensor signal characteristic waveform during the end of drawing process is determined,and the similarity between collected vibration sensing signal,sound sensing signal and the characteristic signal is compared;the ash sensor is used to effectively identify inclusion rate of caved top coal.According to the similarity and inclusion rate,the system execute early warning or direct control to realize automatic drawing control which taking sensorbased sensing control as main control,time control as protection value,and remote intervention control as auxiliary control.The system improves automation level and production efficiency of fully-mechanized coal face with sublevel caving.
Keywords：coal miningthick coal seamfully-mechanized coal face with sublevel cavingautomatic drawingsensor sensingcoal and gangue identification
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 27-30 )