Want to do more with less. Let American Flow Technology convert your existing green liquor clarifier and mud washer into a properly designed sedimentation tank. No more worries about high turbidity. You may possibly never have to use a polymer again. And more important, you will avoid the extra expense of a pressure washer.
Many clarifiers in service today have been built without considerations of flow hydrodynamics. Spreadsheet analysis and standard equations used in the industry cannot guarantee a design that assures turbidity levels less than 100 ppm for green liquor clarifiers. Feedwells have been designed to impart energy to the inlet feed in the hope of facilitating flocculation of the dregs. In practice, advance simulations of the flow show that feedwells used in green liquor tanks generate high shear rates, making polymers less effective. In addition, feedwells impart unacceptable high levels of swirl at the outlet resulting in non-uniform flow and unnecessary momentum imparted to the green liquor. Your current feedwell may therefore be an effective flow mixer and not promote sedimentation. Because most feedwells impart high levels of swirl, they produce unnecessarily high flow velocities and cause a vortex that pulls flow inside the feedwell.
Advanced analyses of bustle pipes used in the industry show that bustle pipes do not draw flow equally. Only a balanced bustle pipe can ensure maximum settling times for the dregs, utilise the entire tank, and avoid flow short-circuits.
What Clients are Saying:
Dave Erickson, Process Engineer, Potlatch Corp: "I was impressed with the level of detailed hydrodynamic analysis did on our clarifier