The Conventional Thickener. Click on the thumbnail ... The purpose of the feedwell is to dampen the turbulence of the incoming feed so that the entry into the thickener will be as laminar as possible and will not interfere with the solids that are already settling inside the tank. This effect is achieved by entering the feedwell tangentially so ...

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 ...

Conventional feedwell designs have two main shortcomings: short circuiting, where the feed stream momentum carries the flow ... EvenFlo Feedwell in the thickener in the After photo. We are process experts providing innovative and customized solutions for the minerals market.

The name Conventional Thickener is used for equipments with short feedwells, where the flocculated pulp leaves the feedwell and enters into the settling zone of the thickener well above the sediment level. In the 1970s and 1980s, machines known as High Capacity or

Conventional Applications. Many thickeners suffer from short circuiting and high flocculant consumption because of poor feedwell design, as shown in Figure 1 below. The rotational flow in the feedwell is often carried into the body of the thickener and has the effect of …

Dual feedwell. Overflow launders with weirs. Instrumentation. Thickener development and general history. Sedimentation technology was originally developed in the mining industry. Prior to the development of the continuous thickener, batch gravitational settling was employed. ... Whereas most conventional thickeners facilitate tails piping in an ...

Abstract: Metallurgical thickeners have evolved over the past century in large technological leaps rather than through a slow and steady progression. The first of these technological leaps was the introduction of polymer flocculants in the 1950s which transformed large diameter conventional thickeners (with flux rates of 1‒2 t/m2/day and a rise rate of 1 m/h) into smaller diameter high rate ...

thickener which has largely superseded the conventional thickener. The adoption of flocculant has placed more demands on the feedwell design by adding to its operating complexity. To be an effective aggregate growth apparatus a feedwell must promote flocculation, which requires a …

The Vane Feedwell is a high-performance feedwell for the thickening and clarifying industry. The Vane Feedwell has also been successfully retrofitted, quickly showing significant benefits in thickener performance. It is now the global standard for all Outotec thickeners.

feedwell provides optimal flocculation conditions and even distribution of solids in the thickener. EvenFlo™ Feedwell Optional Feedwell to Maximize Performance A properly designed feedwell should provide energy dissipation as well as even distribution of the feed into the thickener. WesTech's EvenFloTM design consists of a two-part feedwell ...

The company believes a thickener should not be designed on the limit since metallurgical operations are dynamic. Clarifiers. MIP's clarifiers have customised feedwell designs and the ability to produce overflows with a clarity of less than 50 parts per million. They are widely used in the mineral processing and waste water industries.

High-rate thickeners that are built as dedicated machines are available in sizes up to 40 meter diameter but retrofits of conventional thickeners are often larger in size. When viewed from the outside high-rate thickeners look very much like conventional machines except that their tanks have a …

Higher sidewalls than conventional thickeners allows for higher underflow SG densities. Feedwell evenly distributes the slurry throughout the tank allowing the solids to compress uniformly throughout the settling area. Feedwell is designed for optimizing flocculation time.

The standard feed well for conventional thickeners is designed for a maximum nominal flow velocity of 1.5 m/min. High turbidity caused by the depth of the feed well. When overflow clarity is important or the solids gravity is close to the liquid specific …

the thickener. WesTech's EvenFloTM design consists of a two-part feedwell system. An inner chamber converts the feed energy into a concentric radial flow for optimal mixing of flocculent and solids in all areas of the main chamber. The main feedwell chamber then evenly distributes the feed into the sedimentation zone of the thickener.

The result is now common use of the term "High Rate Thickener" which has been applied in all areas of industry. The characteristic features of a High Rate Thickener, which distinguishes it from a Conventional Thickener, are: Deeper feedwell. De-aeration of the feed (either internally in the thickener or external to it).

Measuring Settling Rates and Calculating Thickener Capacity. Measuring Settling Rates and Calculating Thickener Capacity depth must be added a foot for the loss due to the pitch of the drags in the thickener and 15 ft for the depth of the feed since the feed is thick and the volume will be proportionately low while the apex is of the same size as the hole in the plug This cone is slipped

Whereas the open type of feedwell was suitable for conventional thickeners, generally without the use of flocculants, the advent of High Rate and other forms of …

Enviro-Clear - Manufacturer of clarifiers, thickeners, horizontal belt vacuum filters, pronto pressure filters, linear screens, and replacement drives. High capacity, high rate, and conventional thickeners / clarifiers provided for liquid solid separation for mining, chemical processing and industrial applications.

Thickening, Filtration and Clarification in the Phosphoric thickener in an evenly distributed flow pattern The EvenFlo™ feedwell design ensures steady state flow into the thickener tank across a wide range of feed flow rates Feed flow variations only change the head level in the inner chamber while even flow distribution continues into the main portion of the feedwell and then into the ...

Conventional thickener feedwell designs have two main shortcomings: short circuiting, where the feed stream momentum carries the flow prematurely down and around the feedwell, past the shelf and deflector, and out of the feedwell; and inefficient flocculation, where only a small area around the inlet of the feed provides good mixing.

TOP™ Thickener Optimization Package – WesTech Engineering The TOP Thickener design approach adds ten innovative features to the thickener to … Conventional Gravity Thickeners … TOP Control System: Each TOP control system package is customized to meet the specific needs for a given application. Designs can range from a reactive control logic, with a high level of operator …

Exclusively from WesTech, the EvenFlo® feedwell optimizes thickener performance to eliminate these conditions. For 20+ years, WesTech has used its experience and expertise to refine paste and thickened tailings technologies. Our 2021 presentation, videos, articles, and engineers can help you better understand the benefits of paste thickening.

HIGH RATE THICKENERS - McNally Sayaji. Conventional thickeners, High compression thickeners and clarifiers. The key advantages of a High Rate Thickener over a conventional thickener are as follows: Some of key features of the MBE High Rate Thickener are • The HRT is designed specificallyto operate with flocculantsand hence optimises flocculant consumption.

bridge type conventional thickener feedwell millstone.cf. Conventional Thickeners Solid Liquid Separation. The Conventional Thickener. Click on the thumbnail The bridge type; The column type; The Feedwell . Inquire Now; Used 240 Square Foot Lamella Thickener for …

Thickeners and Clarifiers. DELKOR's thickener is a proven performer across a variety of applications ranging from the mining and minerals industry to industrial, chemical, water treatment and wastewater industries. With units of up to 100 m in diameter having been installed, the benefits of our DELKOR conventional, high-rate, high-density and ...

A circular-tank gravity thickener having a central rotating feedwell is provided with a skimmer which is entirely supported by and rotates with the feedwell so that the rotating scraper mechanism may be elevated independently in a conventional manner.

Conventional thickener feedwell designs have two main shortcomings: short circuiting, where the feed stream momentum carries the flow prematurely down and around the feedwell, past the shelf and deflector, and out of the feedwell; and inefficient flocculation, where only a small area around the inlet of the feed provides good mixing.

Mo and Zn are more difficult than i.e. Cu and Fe. 6:5 Upgrading U pg ra di ng BASICS IN MINERAL PROCESSING Conventional clarifier/thickener – Design* Bridge type For smaller thickeners, up to 30 – 40 m diameter, the rakes and drive mechanism are supported on a bridge superstructure, which straddles the tank as shown.

Thickener design procedure and method Thickening. The big difference of thickeners are if they are High Capacity or Conventional. They need to be feeded with a max range of 30%of solids. The UF its in The range of 50 56 %solids and they have auto dilution in the feedwell for big capacity, the conventional its in the range of 50 54 % of solids.

Conventional clarifier/thickener – Design Bridge type For smaller thickeners, up to 30 – 40 m diameter, the rakes and drive mechanism are supported on a …

A feedwell for a thickener/clarifier includes a feedwell body ( 40 ), a feedwell inlet ( 41 ), a sidewall ( 42 ), and a discharge opening ( 48 ). At least one infeed conduit ( 21 ) is connected at an upstream end of the feedwell inlet ( 41 ). The sidewall ( 42 ) has a non-cylindrical curved peripheral surface defining a radially-outermost fluid boundary surface for an influent stream ( 60 ).

hot sale thickener for bentonite in russia. thickener using a low head axial pump to drive dilution water into the feedwell The main advantage of the Forced Dilution system is that it takes the overflow liquor from a large surface area ne gating the risk of causing localized high internal rise rates

We are one of the prestigious business groups, persistently engaged in manufacturing and exporting a quality assured range of Solid Contact Reactor Clarifier.Available in two different classes, these clarifiers are used in wastewater treatment plants for sending raw influent liquid and recirculated slurry upward into the reaction cone.

Wa design thickener tanks and walls for upset conditions where the tank is filled with a density of between 15% and 45% solids above the normal underflow concentration as demanded by the application. Thickener Types Conventional thickeners can be operated with or …