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焦作煤矿是一个地下涌水量特大的煤矿,每采一吨煤平均要排出地下水50m~3,排水电耗占全矿井总电耗的60％,每年仅排水电费就达1700万元以上。所以,重视研究提高排水经济效益,节约能源,对焦作局扭亏增盈意义十分重大,而排水节能的核心是排水泵,焦作局井下拥有庞大的排水系统,泵房31个、水泵238台,装机总容量达12.9万kW,过去使用大部分是自制的SSM25型泵,流量只有408m~3/h,效率只有68％,目前国内虽有250D～60型泵,效率可达75～78％,然而流量也只有450m~3/h,仍然满足不了焦作水大和改善群泵
Jiaozuo Coal Mine is a coal mine with large underground gushing water. Every ton of coal it picks consumes an average of 50m ~ 3 groundwater. Its drainage electricity accounts for 60% of the total power consumption of the whole mine. Therefore, it is of great significance to pay attention to researching and improving drainage economic benefits, energy conservation and reducing losses and increasing profits of coke bureau. The core of drainage energy saving is the drainage pump. There are a large drainage system in the underground of Jiaozuo Bureau. There are 31 pumping stations and 238 pumps, With a total capacity of 129,000 kW, SSM25 pump, mostly made in the past, has a flow rate of only 408m ~ 3 / h and an efficiency of only 68%. Although there is a pump of type 250D ~ 60 in China, the efficiency can reach 75-78% Flow is only 450m ~ 3 / h, still can not meet Jiaozuo water and improve the group pump