Herrenknecht is a respectable enterprise.
I am lucky to join the 2016 Bauma Exhibation on Apr 11-17, 2016, and have a close contact with Herrenknecht culture, people and product.
As the slurry separation plant manufacturer, always pay great attention to the leaders in this industry worldwide. Here is demo of Herrenknecht typical separation plant design.
To know the separation plant processing flow, the below diagram for your reference.
The slurry from the discharge pump goes to the coarse screen firstly, then go to the 1st compartment of the tank, the 1st gravel pump takes the slurry from the 1st compartment to the desander for further separation with the cut point reaching 60 um, and the cleaner fluids goes to the 2nd tank compartment. The 2nd gravel pump has the slurry go to the desilter processing from the 2nd compartment, reaching the cut point 20 um, and the cleaner fluids go to the 3rd compartment, which can be used for the pipe jacking machine by the charging pump.