Hi-Rate Thickeners

The HI-RATE THICKENER feed well height is adjustable to allow for control of the secondary dilution and levelling thereof so that there is even water flow over the total circumference of the feed well. Slurry enters the notched proprietary feed well via a tangential inlet pipe. Flocculent is also added; thus, mixing between flocculent and slurry is completed in the proprietary feed well. To aid settling and thickener performance, MPT can install high circulating pumps to increase supernatant back into the feed stream to improve the thickener’s floc generation and settling performance.

The rake design allows solids to settle to the conical floor of the tank, where the rakes move the material towards the central outlet. The scraper on the bottom of the rake shaft ensures that the outlet pipe remains unblocked. The drive assembly is either mechanically lifted on torque cams or fitted with a hydraulic lift system that progressively lifts the rakes as process torque increases. When there is an increased level of solids, the rake shaft will automatically raise to the correct level because of the torque monitoring hydraulic system or the mechanical torque cam.

MechProTech Thickener design is a bolt-together design suitable for standard road transport or containerisation. Thus, the units are fully fitted in our workshop and, when delivered, are ready for installation with reduced erection times.