Slurry pump for generating a continuous thick material flow and method for operating a sludge pump for generating a continuous thick material flow

摘要

The invention relates to a thick matter pump for generating a continuous thick matter flow, with at least two pumping units (1, 2) alternating in pumping and suction operation, a suction line (4) with a boost pressure device (3) acting separately from the pumping units for actively effecting thick matter compression, one Conveying line (5) and a switching device (7) for switching between the pump units (1, 2), in a first operating state for conveying the thick matter through the switching device (7) at least one first pump unit (1) in pumping mode with the delivery line (5) and at least one second pump unit (2) is connected to the suction line (4) in suction mode, wherein in a second operating state the switching device (7) in suction mode means that at least one first pump unit (1) is connected to the delivery line (5) and at least one second pump unit (2) is connected to the suction line (4) in pump operation, and the boost pressure device (3) is effective is switched off.