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RWE brown coal open-cast mine, Indem

The Project:


Pumping surface water from the main level of the Indem open-cast mine into the receiving body of water


Executing company

RWE Power AG, Braunkohletagebau Indem


The Problem:


The surface water, which arises discontinuously from the complete Indem open-cast mine, is first taken up in the main level. From here it is pumped continuously into the receiving body of water. Requirement to be satisfied by the pump: maximum delivery performance at pressure variations from 3,5 to 4,5 bar.


Our Solution:


Use of a high-pressure pump of type LH855 with 55 kW. This delivers the water into the existing pressure line at the rate of 5,7 m3/min at a pressure of 3,5 bar. Since the Tsurumi pump can be operated not only vertically but also horizontally, it can be connected perfectly to the existing pressure line.

In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear can take place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the working conditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.
In this regard, please pay attention to our general terms and conditions that we also send to you by mail on request.