HiDensity™ Paste Thickener Overview:
WesTech’s HiDensity™ Paste Thickener produces non-settling thickened tailings with lower viscosities and underflow concentrations than what is produced in the Deep Bed™ Paste Thickener. The HiDensity Thickener also has a lower height-to-diameter ratio, which allows for on-the-ground construction and much larger diameters. The HiDensity Thickener offers the advantages of paste and thickened tailings for very large tonnages. Water savings and tailings deposition can be accomplished with fewer tanks and at a lower capital cost than with the equivalent number of Deep Bed paste thickeners. Reduced viscosity associated with the underflow concentrations of the HiDensity Thickener results in lower pumping costs — an important factor for deposition areas far from the plant.
Features
Both elevated and on-ground tank designsTunnel access to the underflow pumpsRake mechanism with full-length dewatering picketsDuty-rated torque to over 4,000,000 ft-lbsSelf-diluting feedwellDiameters 3 to 60m
Benefits
Easier to pump low-density pasteOptimal flocculationEfficient paste discharge
Applications
Mineral tailingsDeposit slope of 3-3%CCD circuitsExtend pond life by changing to pasteAllows tailings deposit without dams