NETZSCH Pumps’ NEMO BF progressing cavity pump with an add-on asynchronous bridge preventing module (aBP-Module), prevents the formation of lumps that can cause bridge building in a sewage sludge conveyance system.
Designed for viscous media, the NEMO BF pump with the aBP-Module eliminates high media cohesiveness that can cause entanglements and bridge building. The aBP-Module is made up of a hopper extension with two spoked wheels attached to its internal sides. Sitting deep inside the hopper close to the walls, the turning wheels generate the effect of moving hopper walls, which creates a shearing effect in the medium. This shear effect tears the bridges apart in the early stages of formation, so the mix can be conveyed continuously.
The structured surface of the stainless-steel wheels further supports this effect and assists agitation in the hopper. The middle of the chute remains free, and the fill level can be assessed and readjusted if necessary. The wheels are driven by independent worm gears with settings that can be tailored to each medium being conveyed.
Depending on the size, the NEMO BF can achieve pumping capacities of up to 52,830 gallons per hour (gph) and differential pressures of up to 652.67 pound-force per square inch (psi).