The thickening and clarification systems from ANDRITZ Delkor (Pty) Ltd. make use of state-of-the-art sedimentation technology to offer an efficient and reliable solid-liquid separation unit for a variety of applications. Phosphoric acid clarifiers, 30 m in diameter High-rate thickener for coal, 20 m in diameter
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Hydraulic lifting devices have replaced manual or motorised mechanical screw devices. ... High Rate Thickeners. Perhaps the most significant design optimisation effort in thickening in the last twenty years has been in developing ways to more effectively use the horizontal cross sectional area of the thickener. The introduction of polymeric ...
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The primary purpose of thickening is to increase the solids concentration of the feed stream. Gravity settling is aided by addition of chemicals called flocculants. The inlet stream going to a thickener generally is called 'feed' or 'influent'. Overflow from the unit may be called 'overflow', 'effluent', or 'supernatant'.
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High-rate Thickeners are designed to provide roughly 12 times the throughput of conventional machines of similar size. The key features for high-capacity thickeners …
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Our main product offeringis the High Rate Thickener (HRT) which has several special features that provide advantages over conventional thickeners. We can also offer …
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High-Density Thickeners separate liquids from solids using gravity settling. A key requirement is to contact the solids with added chemicals under the right shear conditions for building large floccules. The efficiency of flocculation contributes to an enhanced settling rate. Once settled in the bottom of the tank, the deep mud bed is further ...
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Hydraulic lifting devices have replaced manual or motorized mechanical screw devices. ... High Rate Thickeners. Perhaps the most significant design optimisation effort in thickening in the last twenty years has …
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High rate thickener units are provided in sizes ranging from 5' to 250' in diameter, and can accommodate drive head torques of up to 4 million foot pounds. They are available in shaft or cage driven models. Shaft drive thickeners can be truss or beam supported for heavy duty applications. A heavy duty drive unit with precision bearing and gear ...
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High compression thickeners Achieve a higher density underflow with our High Compression Thickener. The HCT has been designed to suit customer needs with a deeper solids bed and higher rake torque than our High Rate Thickener or conventional thickeners. Consistent and high-density underflow Maintains a constant solids …
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PHOENIX HiFlo™ High Rate Thickeners clarify wash plant effluent water while thickening the slurry to 40-45% solids, greatly reducing the underflow slurry rate to the slurry pond. PHOENIX Thickeners use sedimentation technology to maximize the water recovery rate, providing clarified overflow water that can be recycled and reused in the ...
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Your Q. In general, thickener handling rate is expressed in gallons per minute per square foot of settling area (GPM/Ft) or cubic meters per hour per square meter of . 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.
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Hi-Rate Thickeners. The HI-RATE THICKENER is a MechProTech OEM product manufactured in-house. It has a structurally grated walkway across the top. Suspended from the walkway at the top of the tank is the drive assembly consisting of a gearbox driven by an electric motor and the hydraulic lifting system.
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Fix a narrow strip of paper on one side of the container. Mix pulp thoroughly. Draw a line on the paper at the top of the pulp and mark "0" minutes. For five minutes, at one-minute intervals, mark the point to which the solids have settled. This determines the free settling rate of the solids at the initial density.
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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 far away …
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We have provided paste thickeners up to 40 m in diameter with drives in excess of 10 mNm of torque. For applications where high water recovery is required but without the process and pumping issues associated with paste. DELKOR have operational units from 1 m to 99 m in diameter. As one of the pioneers of high rate thickening we can count
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A thickener/clarifier drive unit supplies the torque to rotate the rake arms through the thick sludge. The drive is usually made of cast iron because of its durability. Usage Examples. Thickeners and clarifiers are often used in water and wastewater treatment plants to remove solids, chemicals, microbes, and other impurities.
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The thickener is 150 m diameter and was designed to process 13000 m3/h of pulp, containing 27% of solids, with a specific gravity of 1.2, to deliver an underflow with a 54% of solids. The flocculants is added at a rate of 15g/ton of pulp or about 270 m3/h of a solution with a low flocculants concentration (0.02%).
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The PHOENIX AltaFlo™ Thickener is a rake-less thickener that provides ultra high-rate mixing, flocculation, and internal dilution followed by clarification and positive sludge collection and removal in a single tank. The Thickener's unique internal geometry, a deep sidewall and steep conical bottom provides underflow concentration comparable ...
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High Rate Thickener (ENG) PDF Chemistry Scribd. Some of key features of the MBE High Rate Thickener are • The HRT is designed speci cally to operate with occulants and hence optimises occulant consumption • The HRT has a special " McTurbo" feed well design combined with automatic feed dilution feature to ensure proper mixing of occulant with …
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Apart from its immense practical value as a manual, the greatest influence of De Re Metallica was in preparing the ground for the introduction of a system of mining education, which, ... High-density and paste thickeners are similar to conventional or high rate thickeners, but with steeper cones and much higher cylindrical tanks. The …
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AltaFlo High-Rate Thickener Overview. The AltaFlo™ ultra high-rate thickener is a rake-less thickener that provides mixing, flocculation and internal dilution followed by clarification and positive sludge collection and removal in a single tank. The principles of flocculation have been further adapted to a new design that will thicken ...
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HRT-S is a robust pre-engineered high rate thickening solution that is delivered efficiently, is easy to operate and service. Modular and ready to sell with a defined set of features and selected options to choose from. Pre-engineered designs. Consistently enables accelerated project deliveries. Pre-determined transport volumes and packing plans.
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with high solids retention and mixing efficiency that eliminates feed short-circuiting. Reactorwell™ offers low shear for ideal floccule growth, even discharge symmetry as well as excellent feed preparation. Reactorwell™ enables maximum thickener usage due to a higher exit symmetry, resulting in better thickener operability and
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We are able to provide paste thickeners up to 34 m in diameter with drives in excess of 10 mNm of torque. High Density. For applications requiring high water recovery, but without the process and pumping issues associated with paste thickeners, our high density thickeners from 1 m to 99 m in diameter can be supplied. High Throughput.
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Hydraulic lifting devices have replaced manual or motorised mechanical screw devices. ... High Rate Thickeners. Perhaps the most significant design optimisation effort in thickening in the last twenty years has been in developing ways to more effectively use the horizontal cross sectional area of the thickener. The introduction of polymeric ...
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The Magra High-Rate Thickener can be used as a reactor/clarifier for counter-current leaching (ccl). 100+ times smaller footprint with same flocculant consumption than conventional rake thickeners and no moving parts. Feed densities up to 55 % – no other thickener can compare.
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HIGH-RATE THICKENER. High-rate thickeners also have a smaller tank volume, so less volume is required for storing the product if the tank has to be emptied. Because of this, high-rate thickeners can start up and shut down faster than conventional thickeners. However, due to their smaller size, high-rate thickeners require faster settling rates.
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How A High-Rate Thickener Works. How It Works Videos. McLanahan High-Rate Thickeners help producers reduce settling ponds or tailings storage facilities by recovering clear process liquid. They can be an on-ground, flat-bottom style or an elevated style to minimize pumping requirements. 3:33.
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There are two basic types of high rate thickener units: Lamina or tube settlers and; solids recirculation units; Lamina Thickeners. They contain space-cutting baffles that intercept settling paths at many …
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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, …
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