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Thickening - ANDRITZ

Highly efficient thickening for any fiber processing application. ANDRITZ offers a range of thickeners with different machine concepts in order to meet highest demands as to consistency, throughput and availability. Our thickeners are perfectly suited for the processing of and recycled fibers, broke as well as mechanical pulp.


In operation, the tank is full of whatever it is you are thickening, usually a pulp of ground ore, or tailing, and water. The liquid overflows around the edge of the tank, and the solids, also called the slime or the sludge, settle to the bottom of the tank. The …


Working Principle. Parason High Consistency Disc Filter (HCDF) is developed for effective pulp thickening in a wide range of flow applications. The HCDF is adaptable to higher feed consistencies and supports operations of variable grades of pulp and recycled paper. The pulp is fed into the vat through the inlet located on the side of the filter.


In operation, the tank is full of whatever it is you are thickening, usually a pulp of ground ore, or tailing, and water. The liquid overflows around the edge of the …


Figure 2. Water balance of a high-density thickener in an iron ore concentrator plant. The most common problems in thickener operations include the presence of suspended solids in the recovered water and the density or percentage of solids of the thickener discharge outside the set targets.


ZNP Series Disc Thickener. ZNP Series Disc Thickener, the paper pulp washer and thickener machine is mainly used to wash and thicken for low consistency slurry like mechanical wood pulp, waste paper pulp and reed pulp, bamboo pulp, bagasse pulp, straw pulp, etc. Learn more.


How a Thickener Works. Thickening or dewatering may be defined as the removal of a portion of the liquid from a pulp or slime made up of a mixture of finely divided solids and liquids. The early methods of thickening employed plain, flat-bottomed tanks into which the pulp was fed until the tank was full. The solids were then allowed to settle ...


Beginners guide to thickeners. Thickening is a process where a slurry or solid-liquid mixture is separated to a dense slurry containing most of the solids and an overflow of essentially clear water (or liquor in leaching processes). The driving force for the separation is gravitational, where the differences in phase densities drive the ...


In a pulp thickener with a conical base 10 topped by a cylinder 11, pulp is fed through pipe 20 to an inverted conical baffle 19 where the velocity of flow of the pulp is dissipated. In addition gasses are vented from the feed through pipe 17 so that flocs do not float due to adherent bubbles. In other embodiments the feed is kept constant by recirculating clear liquid.


Valmet Gravity Thickeners ensure increased stock consistency and minimizes storage volumes. Valmet Gravity Thickener. Valmet's Gravity Thickeners guarantee highly efficient broke and pulp thickening, delivering high-capacity dewatering in a compact and cost …


Thickener Operation. The most common solids-liquid (S/L) unit operation is thickening. A wide variety of thickeners are used including conventional, deep well, paste, high rate and clarifiers which is a thickener subclass used for removing solids from turbid or very low % solids waters. Thickeners are mechanically continuous process equipment ...


Pulp Thickening and Washing Area. Wire Washer. TT CW. The Toscotec Wire Washer TT CW is used to obtain an efficient removal of ashes, inks, glues, and fines by means of low consistency stock washing and consequent thickening. Thickening Screw. TT CA. The Toscotec Thickening Screw TT CA is an inclined screw thickener; it can be configured as a ...


The main issues that mining plants face in thickener operations have their origin in three main sources: design, mineral variations and mechanical or instrumentation and control problems. 1.-. The design stage is the most relevant aspect to determine the diameter (area) and the torque of the thickener.


PARASON Pulp Thickening machines are constructed following the present state-of-the-art and recognized safety standards. Parason Gravity Thickener is simple to install and easy to operate. No external controls are required as the operations are flexible. It has adjustable rotational speed and outlet weir height for accomodating large changes in ...


One of the main operations at the plant is pulp-thickening, the main objective of which is to obtain a dense final product and a clean liquid phase. Two thickening operations are carried out at the TOF; the first is done to thicken the crude copper-nickel ore after it has been crushed, while the second is done to thicken flotation tailings in ...