Functional testing and manned experiment of permanent refuge chamber in Lijiahao Coal Mine
By conducting functional tests on the airtightness,positive pressure maintenance,high-pressure pipelines,air curtains,sprin-kler systems,and compressed air systems of 80 permanent refuge chambers underground in Lijiahao Coal Mine of Shenhua Baotou Ener-gy Co.,Ltd.and conducting manned experiments,the test results were compared and analyzed with relevant document regulations.It was found that all functional indicators of the permanent refuge chambers underground in Lijiahao Coal Mine were within the specified range,meeting the needs of disaster evaders and meeting relevant regulatory requirements.
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