8 High compression thickeners Thickeners and clarifiers The Outotec HCT delivers high performance for consistent process conditions, and reacts relatively quickly to …
In table II it is shown a Conventional thickener operation on uranium pulp compared to same service in HCT. Table II - HCT vs. Convention al thickener: Uranium pulp (Roger Summerhays, 1979)
On the other hand, the mud level should be kept between 2.0 to 3.0 m over the thickener bottom. Figure 4. Thickener settling layers. An example of a suitable control strategy is presented in figure 5. Here, both interface level control and mud level control are used. Figure 5. Control loop schematic using interface and mud level
By these means the settling process is accelerated and consequently High Rate Thickeners achieve a significantly higher throughput per unit area than conventional thickeners. The object of a control system on a High Rate Thickener (HRT), as on a conventional thickener, is to obtain the required underflow density and overflow clarity …
In the conventional thickener, particularly in the smaller units, the feed well is primarily a baffle to absorb energy. Usually it is a simple cylinder and can be roughly sized using a figure of 24 gpm/sq.ft. of area. This will approximate usual mill practice. ... Control of flocculation is provided a number of ways. One way is to provide a ...
The vessel had an internal diameter of 95mm. On the wall of the vessel were sampling locations at heights of 10, 50, 150, 225, 300, 600, 900 and 1200mm for obtaining samples to determine the concentration profile. Full width samples could be collected. Fig 4.Schematic of sedimentation equipment.
al., 2000). • Feeding pulp to the filtration section. • Feeding pulp to autoclaves. In figure 7 shows the flowchart of a thickener to produce a paste for stacking disposal in surface. The paste thickener, receives a supply of tailings pulp to achieve a high concentration that is optimal for these type of deposits.
Thickener Sizes and Superstructure. ... Froth control or removal may require sprays, froth baffles or skimmers. Slurry temperature, vapors, gases, etc. may require covered and/or insulated tanks with …
The Conventional Thickener. Conventional Thickeners are generally incorporated in heavy duty applications when the underflow density is …
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%).
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.
Thickener modernizations, upgrades and retrofits Restore your thickener to its original condition or upgrade for increased performance. Improve performance and extend the life of equipment by upgrading your aged thickener. The thickener bridge and mechanism are often upgraded in conjunction with the entire feed system. Upgrading these
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-supported design …
conventional thickener mixing chamber price . China Heavy Industry is an import-export joint-stock company that specializes in the production of large and medium-sized broken, sand-making and milling equipments, research, production, and sales.It is committed to providing customers with integrated solutions.More than 10 series and …
A conventional thickener has a large volume and cross sectional area, and changes in performance occur slowly - the operator has time to observe and react to these changes to maintain control. On a HRT, there is a much reduced residence time and therefore control parameters need to be reset more frequently.
Conventional . SNF offers a wide range of synthetic thickeners designed specifically for Pigment, Reactive, Disperse, and Acid that are available in liquid polymer emulsion and powder forms. These …
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.
Cost competitive equipment and proven results assure that your process needs are fully considered in the design of each mechanism. High rate thickener units are provided in sizes ranging from 5' to 250' in diameter, …
Deep cone thickener control problem is a key point of Tailings paste fill (TSF). This paper presents a new method to extract inherent and practical parameters of the thickener, and determine control strategy based on thickening process data mining. Bypassing difficulty in deep cone thickener modeling, the proposed method could obtain practical control …
Keep the worm chamber on the drive mechanism full of oil, and take care of the grease fittings daily. The lifting screw gear ought to be greased well, and it is a good idea to keep grease on the central shaft for about a foot below the worm gear. And don't fall into the thickener; it doesn't look well.
conventional thickener underflow outlet price. conventional thickener underflow outlet price. High pressure thickeners hrchr highpressure thickener is a product exclusively developed by our plant the hrchr highpressure thickener has the characteristic of large handling capacity and high underflow density, which can be at maximum, it is more than …
Thickening process control is the control strategy and control method to ensure and improve the solid-liquid separation index of the thickener on the premise of ensuring safe, continuous, and stable operation of the thickener. The settling mechanism of thickener is very complex. Different particle size composition, mass concentration, and ...
conventional thickener flocculation chamber price . China Heavy Industry is an import-export joint-stock company that specializes in the production of large and medium-sized broken, sand-making and milling equipments, research, production, and sales.It is committed to providing customers with integrated solutions.More than 10 series and …
conventional thickener of 110 meter in diameter volumetric feed rate for the conventional thickener i: M2/MTPD. For the same feed sluny, underflow and …
Special thanks to Harold Haag, Forrest Hentz and Caroline Wilson for developing the paint applications data. For more information on thickeners, contact Aqualon Division, Hercules Inc., 1313 N. Market St., Wilmington, DE 19894; phone 302/594.5000; fax 302/992.7178; visit ; e-mail jsturgil1@herc.
PDF | The common thickener underpins the performance of most hydrometallurgical facilities. Thickeners are simple, reliable, effective and... | Find, read and cite all the research you need on ...
The general Process Control Strategy for a thickener are shown in Fig. 13. By knowing the feed density, feed flow rate, underflow density, and underflow flow rate, the solids in, solids out, and solids …
Conventional thickener. ANDRITZ process engineering will determine the optimum percentage of feed solids for the specific application during laboratory or pilot plant test work. The optimum percentage of feed solids will ensure proper flocculation and achievement of maximum fluxes (t/m²/d).
The torque capability of a thickener drive is specified as Duty Rating being the maximum mechanism design strength or the setting on the Torque Control Box. The torque, in turn, depends on a K factor and the thickener diameter based on the following formula: Torque (in Nm) = 14.6*K*D 2 (in meters)