In high rate thickener (HRT) designs the rise rate or solids loading will dictate the required tank diameter for any given throughput. In high compression (HCT) and paste (PT) applications the bed depth or the mass of solids in the thickener must also be selected to ensure the desired underflow density from the … See more The measurable parameters that can be used for thickener control include thickener feed flow rate, feed density, underflow density, overflow clarity, bed level, bed mass, rake … See more Rake torque is the most fundamental instrument and an accurate indicator of when things have already gone really wrong! Under normal … See more Bed mass is utilized to control thickener inventory. Bed mass is generally measured by a pressure transducers mounted at the bottom of the tank (figure 4). These pressure transducers’ are best located in the cone or close to … See more Bed level is a frequently installed instrument and can be installed and serviced during normal thickener operation. Instruments measure the height of the interface … See more WebJun 18, 2024 · A common variant on the gravity thickener design is the picket fence thickener. This technology is fitted with a stirrer comprising a series of relatively closely-spaced vertical arms, and is therefore similar in appearance to a picket fence. For both designs, the sludge enters the centre of a cylindrical tank and flows out to the periphery.
HiFlo™ High-Rate Thickeners PHOENIX Process Equipment
WebHigh-Rate Thickeners separate liquids from solids using hindered settling. Rotating rake arms collect settled sludge and move it toward the center discharge cone. They use minimal amounts of polymers/chemicals to drop the solids, making High-Rate Thickeners environmentally friendly. WebJan 1, 2012 · PDF On Jan 1, 2012, Y Yao and others published Dynamic modeling of industrial thickener for control design Find, read and cite all the research you need on ResearchGate fluorescein diphosphate
Operational strategies to improve paste plant performance
WebThe surface loading rate (surface settling rate) is hydraulic loading - the amount of biosolids applied per square foot of gravity thickener: Example: A 70-foot-diameter gravity thickener receives 32,000 gallons per day of biosolids. What is the surface loading in gallons per square foot per day? WebAug 8, 2024 · What are high-capacity thickeners and how they work? In the 1980’s, machines known as “high capacity” or “high rate” thickeners were introduced by various manufacturers. WebYield stress and Thickener types. Underflow from a High-Rate Thickener will have a yield stress of 10-30 Pa and look like tomato ketchup, while underflow from a High-Density … greenfield high school athletic director