High-Rate Thickeners provide immediately reuseable process water and recover approximately 85% of the water from an effluent feed. This high level of water recovery keeps water consumption at sustainable levels, as well as drastically reduces the slurry volume reporting to waste ponds. ... Rotating rake arms collect settled sludge and move …
A key component of most thickener operations is the motion of a thickened sediment across the floor of the tank to an underflow, usually located centrally. In most conventional thickeners and in many high rate and paste thickeners, this transport is aided by a set of two or four rake arms (see the schematics in Fig. 1, Fig. 3).
If it is a tailings thickener, you are wasting water, which is unforgiveable in the desert. If it is a concentrate thickener, you . may be handing the filter operator a headache, which he may return with interest. If it is a C.C.D. thickener, you are only making trouble for yourself farther along the line.
The thickener was applied at various concentrations (0, 4, 8, or 12 g/l) in the pretreatment bath to determine the effect of cationization on the optimal level of thickener. The concentrations of soda ash and urea in the pre-treatment were 40 and 100 g/l respectively.The fabrics, untreated cotton and cotton cationized with 100 g/l reactant, …
High Rate Thickener (ENG) - Free download as PDF File (.pdf), Text File (.txt) or read online for free. McNally Sayaji Engineering Limited is a leading manufacturer of thickeners and clarifiers for mineral processing and other industrial applications. They have designed and installed over 250 thickeners worldwide over the past 20 years. Their main product …
Conventional thickeners can be operated with or without flocculation depending on the application and are traditionally easier to operate due to their relatively slow settling …
Hi-Rate Thickener design elements include the following: Mechanical lift mechanism drive head complete with planetary gearbox drive. Two full-radius rake arms and two half …
The feedwell design in high rate thickeners forms a distinctly separate chamber from the surrounding thickener volume, and the material within the feedwell does not have a direct exit path, but ...
The rake arm rotates slowly with the scraper blades on the bottom to push the solids in the thickener to the deflector cone. The deflector cone is the cone shaped discharged located in the center of the thickener. Once the solids enter the deflector cone, they are removed by pumps, pumping the concentrated solid underflow to a conditioning …
The introduction of polymeric flocculants gave an impetus to development of High Rate Thickeners. 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.
CONVENTIONAL THICKENERS. The objective of a thickener is to separate low-density slurries into a relatively clear liquid and a high-density slurry, or sludge.All thickeners depend on gravity to allow for settling fine solids. A thickener consists of a circular tank with a gradually sloping cone-shaped bottom with a discharge in the center.
Higher underflow density. Exceptional overflow clarity. Low OPEX. Get simple and reliable thickening with Deep Cone® Thickeners. The Deep Cone Thickener is a critical piece …
Deflector cone helps to distribute the feed slurry evenly throughout the thickener area. The gap between deflectorplate and feed well can be of the application. auToMaTic …
HiFlo™ High Rate Thickeners WesTech HiFlo Thickeners are used to separate solids from liquids at high flow rates. These rates are 10 to 20 times higher than those of conventional thickeners. AltaFlo™ Ultra High Rate Thickeners The AltaFlo Ultra High Rate Thickener is a rakeless thickener providing mixing, flocculation, and internal dilution.
The overflow rate for gravity thickeners is calculated by dividing the flow rate of the liquid leaving the thickener by the surface area of the thickener. It is a critical parameter that affects the clarification efficiency and is typically expressed in units of gallons per day per square foot (gpd/ft²).
Mar 02, 2014· The rake arm rotates slowly with the scraper blades on the bottom to push the solids in the thickener to the deflector cone. The deflector cone is the cone shaped discharged located in the center of the thickener. Once the solids enter the deflector cone, they are removed by pumps, pumping the concentrated solid underflow to a ...
Gravity thickening by deep cone thickener is popularly applied in cemented paste backfill, which is essential for tailings management and green mining. To avoid rake bogging, high concentration and high flowability are required for thickened tailings slurry. These properties depend critically on the yield stress of the slurry.
With a small footprint area, large processing capacity and a high level of automation, the deep cone thickener can produce high-concentration underflow or paste-like underflow products. A deep cone thickener that discharges paste-like material underflow is also known as paste thickener (Fig. 1).
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 thickener is achieved.
High Rate Thickeners. Previous Next. Field Proven. Zero Failures after 50 installations. ... Consistent and high-density underflow. Careful cone scraper design provides optimal "live" underflow pump feed. Feed Dilution and Froth Removal (FRAD). We have eradicated the guesswork out of feed dilution. Our dilution system used our Solvent ...
High Rate Thickener Deflector Cone Manufacturer. high rate thickener underflow cone manufacturer. high rate thickener feedwell flocsparger manufacturer. thickener trench scraper manufacturer natrajcreations. thickener tank, rakes and feedwell our custom designed based on the feed Xinhai mining equipment is known . price of balram smb …
In the 1980's, machines known as "high capacity" or "high rate" thickeners were introduced by various manufacturers. These machines are characterized by a reduction in unit area ...
Description. The High-Rate thickeners became popular in the mid 1980's and are relatively newcomers to the sedimentation line of equipment. As already discussed previously Thickeners are a major component in a plant layout and occupy large spaces which may be saved by introducing high-rate machines. Furthermore, they are normally positioned …
7 Product portfolio HRT HRT-S Design factors Diameter (m) 1 - 125 3 - 10 · Feed rate t/hr or m3/hr Sidewall (m) 1.8 - 3.6 1.8 - 2 · Solids residence time / compaction depth · Clarification zone depth · Geometry Floor slope 1:6 40˚ · Floor slope driven by yield stress and slurry transport
Knowing how to size a thickener and determine the capacity required to handle a pre-determined tonnage of a certain pulp, by overflowing a clear solution and obtaining the desired pulp density of thickener discharge, depends upon the settling rate of that particular pulp. The settling rate of any pulp is easily determined by simple …
EIMCO and Dorr-Oliver thickeners are available in both bridge-supported and column-supported designs. We offer beam- or truss-type bridges, depending on thickener diameter. In the bridge-supported design, suitable for thickeners up to 50 m in diameter, the drive is supported by the bridge, driving the rakes with a centre shaft.. Column …
High-rate bolted thickener for iron ore, 18 m in diameter. 8 High-rate bolted thickener for Pb/Zn tailings, 35 m in diameter ... ANDRITZ DEEP-CONE SETTLER The ANDRITZ deep-cone settler is designed for heavy duty ... • Elimination of choking by including a deflector plate scraper and clover outlets • Reduced downtime for maintenance work. 11
Installed back in 1990, these two 27m diameter Outotec high rate thickeners were ageing and corroded. In 2017 KCGM decided to review the performance of these two thickeners. ... The new feedwell …
Deep Cone® Thickener. Back. Drive unit. Back. High-density Thickener. Back. High-rate Thickener. Back. Thickener Spiral Rake Blade. Back. Ceramic Solutions. Advanced Engineered Ceramic Specialty Items ... We build our spiral rake assembly for thickeners in a high-strength tubular construction that in and of itself will enable an increase in ...
High rate thickener HRT-S HRT-S is a pre-engineered high-rate thickening solution widely used for Application dewatering of slurries. Partner for positive change HRT-S delivers: • Streamlined selling processes • Simplified workflows • Standardized engineering scope • …
Scraper blades or rakes, driven by a suitable mechanism, rotating slowly over the bottom of the tank, which usually slopes gently toward the center, move the material settled on the bottom to a central opening or discharge. ... Ltd. A water-soluble "H.V." grade used in the amount of 0.01 lb. per ton of ore increased the settling rate in …
Based on the impact on rake operation of different height and concentration of tailings in the thickener,the stress of rake was analyzed,and a torque model with complex structure rake was proposed.According to the actual phenomenon,the thickener was divided into two zones,the fluid zone and granular zone considering material's distribution in the …
High Rate Thickening is a process whereby mineral particles are flocculated, thoroughly mixed within a feedwell and then injected uniformly into a hindered settling zone in the …