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In the monitoring system of mine pump, one of important parameters is the water level of sump. When monitoring the water level, usually two different types of liquid-level sensor are used to obtain the value of the liquid level and then the method of sensor threshold is adopted to judge whether the water level beyond the limitation. The method just simply combines the value of the two sensors, and...
The pump is one of the key equipments for the safety production of coal mine. It bears the important task to discharge all the underground water. However, the performance efficiency of the water pump will be declined, in the long run. Therefore, in order to ensure the safety production, users should check and test the pump performance regularly ,to test if every target pump has live up to the ldquoCoal...
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