METHOD FOR INSREASING SAFETY AT COAL EXTRACTION IN DANGEROUS ON METHANE LIBERATION FACES AND SET OF MEASURES FOR ITS IMPLEMENTATION

摘要

Method for increasing safety at coal extraction in dangerous on methane liberation faces is in controlling concentration of methane in atmosphere of the extraction face in the length of the extraction face in several points. One determines the rate of increase of concentration and time during which the value of the last one can come to dangerous value in each of controlled points, with generation of alarm signal. Complex of measures for implementation of the method has a block of integrated estimation of danger on the parameters being measured, block for calculation of the value of the measures predicted value and histogram plotting for each cycle of the sensor interrogation.