Screw slurry separator Quetschprofi®

RELIABLE AND ECONOMICAL SEPARATION With the help of the innovative Quetschprofi® separation technology, digestate can be processed economically up to a desired dry matter content of over 25 percent. Every biogas plant can be optionally equipped with a Quetschprofi®. This enables seamless retrofitting of the plant for value-added utilisation of the digestate. The substrate is fed via an eccentric screw pump that pulls in the substrate. A robust press screw drives the substrate through a rigidly mounted, fixed slotted filter screen and presses it against the press cone. As a result, the liquid part of the substrate is drained off via the slotted filter screen. The solid part is conveyed out towards the front against the press cone. The minimal distance between the press screw and the slotted filter screen ensures low wear and a long service life of the screen. The dry matter content of the solid fraction can be adjusted from 15 % to over 25 % by means of the infinitely variable contact pressure, which can provide up to 15 % additional storage capacity. Due to the low connected load of the electric motor, the system works in a very energy-saving way. Optimisation of storage capacities Lower investment costs for digestate storage Separation of high-quality nitrogen and phosphate fertiliser Reduction of transport and application costs for digestates Commercialisation possibilities for the digestate Savings in electricity consumption