Gelsenkirchen pipe heading, Schwarzbach canal, Germany
Executing company: WÜWA Bau GmbH
The material excavated by the micro-tunnelling machine is pumped by a mud pump into a separating system where coarse parts are separated. The remaining highly abrasive sludge is passed into a receiver. The material deposits due to the intermittent operation of the pump.
A KRS2-80 with agitator whirls up the abrasive sludge so that it can be pumped off without any problem. Minimum wear is possible due to the application of components of grey cast and chromium cast iron (25% chromium portion).