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由煤炭工业矿山压力情报中心站设计,常州安全仪厂生产的单体液压支柱双记仪已投入批量生产。该仪器具有自动记录单体液压支柱所承受的压力和活柱下缩量的功能,对回采工作面单体液压支柱可进行连续监
Designed by the Coal Industry Mines Pressure Information Center Station, the single hydraulic prop double-track instrument produced by Changzhou Safety Instrument Factory has been put into mass production. The instrument has the function of automatically recording the pressure of the single hydraulic prop and the amount of shrinkage of the live column. The single hydraulic prop of the mining face can be continuously monitored