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 …
The simplest use of a thickener in a metal-mining operation is to get water out of a pulp; for example, in a desert country where water is too valuable to be thrown away with the tailings. There you have a …
US1339684A US256968A US25696818A US1339684A US 1339684 A US1339684 A US 1339684A US 256968 A US256968 A US 256968A US 25696818 A US25696818 A US 25696818A US 1339684 A US1339684 A US 1339684A Authority US United States Prior art keywords pulp tank bell slime chamber Prior art date Legal status (The …
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 torque, rake height, solids settling rate and underflow rehology.
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. …
Laboratory testing with a high rate thickener has shown the importance of feed solids control to thickener and flocculant performance (Table 4). In the preoxidation as well as CCD thickeners, testing has demonstrated that an optimum feed solids level can be attained which will maximize thickener performance while minimizing flocculant …
The vacuum drum washer is a type of pulp washer which is widely applied in the pulp washing process of wood pulp and straw pulp. Its main function is to separate the pulp from the black liquor and wash out the residual substances such as alkali lignin produced during the pulp cooking process to purify the pulp for screening and bleaching.. …
The depth of each class of pulp would therefore be 2.23 ft., 2.57 ft., 2.87 ft., and 2.58 ft., or a total depth of 10.25 ft. To this depth must be added a foot for the loss due to the pitch of the drags in the thickener and 1.5 ft. for the depth of the feed, since the feed is thick and the volume will be proportionately low.
FJLIME is China drum thickener manufacturer. Drum thickener is used for washing and thickening low consistency stock in waste paper recycling and paper making industries. It has the features of simple structure, …
The main functions of thickener are concentrated pulp and recycled water reuse. At present, the most commonly used thickeners mainly include common thickener, inclined plate thickener and high efficiency thickener. ... Types of Thickener 1mon Thickener The common thickener has reliable operation and low operating cost, and …
The thickening process is the primary method of producing high solids slurries for the minerals industry. Thickener outputs can accommodate a range of tailings disposal options from low yield ...
BrainWave stabilizes the operation of all types of concentrate thickeners, resulting in improved operation and increased production. Concentrate thickeners pose a challenging control problem, as both a nominal bed depth and product density must be maintained for proper operation. Using BrainWave, both of these objectives can be satisfied.
This work used mathematical and numerical modeling to study the influence of such parameters as the flow rate of the feed pulp in the thickener, the flow rate of the flocculant, the density of ...
Dewatering of recycled fiber pulps to high dryness with high throughputs by the use of pulp screw presses, twin wire presses and/or vertical screw thickener. Discover our business. ANDRITZ GROUP. Menu Search ... The patented control system and a powerful drive ensure safest operation and constant dryness at the discharge. Schematic drawing of ...
Paper Pulp Inclined Screen is mainly used in paper pulping process for pulp thickener, it's widely used in paper making mills for its excellent function. ... High efficiency pulp washing and thickener; 2. Reliable …
The blog will be divided in two parts. Part 1 will cover problems in thickener operations caused by thickener design errors and changes in ore properties.Part 2 will …
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 …
US1452016A US173785A US17378517A US1452016A US 1452016 A US1452016 A US 1452016A US 173785 A US173785 A US 173785A US 17378517 A US17378517 A US 17378517A US 1452016 A US1452016 A US 1452016A Authority US United States Prior art keywords pulp float density slime column Prior art date Legal status …
You can choose the best fit thickener for your paper industry according to the manufacturing audit. Looking for Best Pulp Thickener Machine? Buy this must-have amazing Pulp Thickener of Paper Making Machine. Call now +91 (0) 240-2339234/35/36/37 or Write us at info@parason
Thickeners are designed to operate continuously with slurry/water consistently flowing into the centerwell with thickener underflow pumping balanced to maintain a mud bed in the thickener. Key to thickener operational efficiency is the solids must be able to settle 2-4 times faster than the nominal water up flow rate.
Disc thickener is widely used in the paper pulp industry due to its numerous benefits. Here are some of the applications of disc thickener: Paper Pulp Processing. Disc thickener is used in the paper pulp processing industry to thicken and dewater pulp. It is an essential machine in the paper production process as it ensures consistent pulp ...
We offer a range of precisely engineered decker thickeners, that are used to Thickening the pulp, our range provides consistent operations with maximum operating speed. Tested on quality parameters, our range is …
US1472317A - Slime-pulp thickener - Google Patents Slime-pulp thickener Download PDF Info Publication number US1472317A ... thickener Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status …
Thickener control strategies and shortcomings in current thickener operations are discussed, including the strengths and weaknesses of the given field instrument options and their application in ...
Cylinder Wire Thickener, ZNW Series. This series of cylinder wire thickener is crucial for the concentration and washing of low-consistency pulp in the papermaking process. It operates with an inlet pulp consistency of 0.5% to 1% and can increase the consistency to between 4% and 6% depending on the type of pulp being processed.
Valmet's Gravity Thickeners guarantee highly efficient broke and pulp thickening, delivering high-capacity dewatering in a compact and cost-efficient process for a wide range of paper and board grades. The pulp …
The thickeners can be classified into two types depending on location of rake driving mechanism. They are known as either Centrally driven or Peripherally …
An automatic control system is necessary to keep the operation of the thickener stable, along with the use of online monitoring of the clear water and pulp phases inside the thickener. These layers can be monitored with systems such as SmartDiver and can be used to automatically control throughput variability.
A study is made of the effect of the final density of the pulp in the pulp-thickening operation on the quality of the final flotation product at the Talnakh Concentrator Plant. The effect of the reagents that are used on the flotation process is thoroughly analyzed. The main relations which express the dependence of the quality indices of the …
the operation of the thickener is limited by permeability alone in that any enhancement in the permeability of 6 Paste 2006, Limerick, Ireland Understanding the Thickening Process B.J. …
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