METHOD AND APPARATUS FOR DETERMINING THE PROFILE OF A SLUDGE BED IN A THICKENER

摘要

An apparatus and method are disclosed for determining the pulp density gradient in a volume of solids-containing fluid processed in a setting tank or thickener tank. The apparatus includes a depth detection device and pressure detection device which provide pressure readings at various depth levels in the fluid volume within the tank. The depth measurements and corresponding pressure measurements at those depths are recorded and calculated by electronic means into a pulp density profile of the fluid volume. The known density profile of a fluid volume, or sludge bed profile, is associated with a solids concentration gradient and facilitates the optimal operation of a settling tank or thickener tank and permits the modification of other operating parameters, such as addition of flocculant, to optimize operation.