Table of ContentsCCD Wash Ratio DefinitionTheoretical ConsiderationsVariables Affecting Decantation ProcessMechanical FeaturesDorr ThickenerDiaphragm PumpsMeasurement
Lixiviation is often followed by a Counter Current Decantation (CCD) circuit to recover the valuable mineral from the gangue. CCD consists of washing the feed slurry in a series of thickeners until the majority of the dissolved metals are removed. The conventional cho for this process has been high-rate thickeners.
The principle of Counter Current Decantation is simply that, when water or solution is to act upon solids, both are made to pass, in contact, in opposite directions, so that at each end the strongest or most potent portion of either is acting upon the weakest or most exhausted portion of the other. The recovery of dissolved gold and silver from slime pulp in the cyanide process, as first
ANDRITZ thickening and clarification solutions are designed to achieve the highest production rates without compromising efficiency. For all counter-current decantation (CCD) plants: The new and improved ANDRITZ inter-stage mixing and dilution system for CCD circuits helps to reduce the footprint and consequently cut CAPEX while maintaining low operating costs.
A counter current decantation system for the fluid separation of liquids or solids having different densities or absorptive capacities wherein the material to be separated is placed in an inclined separator having a series of decantation pipes, each of which is connected at the bottom thereof to a pump for pumping a fluid mixture upstream at varying pressures.
Kinross Gold’s Kupol Mine elected to use deep cone thickeners for their counter-current decantation (CCD) circuit as well as the grind thickener. Deep cone thickeners are commonly used for CCD circuits in the alumina industry, but this is the first application of that technology outside of
The counter current decantation had been used since 90 years ago in the hydrometallurgical plant. this publication gives the old and new methods for obtaining the optimum number of thickeners
underflow slurry as a counter current the optimization of flowsheets involving a simple countercurrent-decantation circuit. need to take current thickener designs to the next level and
3 Counter Current Decantation (CCD) Simulations Data from oratory thickener simulations was used to simulate various CCD design options. The CCD circuit design for Ruashi is shown in Figure 6 below. The CCD simulations calculate soluble metal recoveries for changes in the most important variables affecting CCD wash recovery which include:
Thickener and Continuous Countercurrent Decantation (CCD) geometric design in gold mining for tailings disposal. Sedimentation or thickening is the separation of liquids and solids in order to increase the density of the final discharge pulp and to recover the greater amount of water from the mineral beneficiation process, mainly in gold.
A counter current decantation system for the fluid separation of liquids or solids having different densities or absorptive capacities wherein the material to be separated is placed in an inclined separator having a series of decantation pipes, each of which is connected at the bottom thereof to a pump for pumping a fluid mixture upstream at varying pressures.
Counter Current Decantation; Paste Backfill; Chemical / Industrial; Refineries; Smelters; Cement ; Gas cleaning plant; Steel melt shop; Water Treatment and Waste Water. Sewage Treatment; De-salination; Water purification; THICKENER TANK. EIMCO KCP Thickener tanks are constructed either from bolted / steel welded or concrete. Most of the
Thickening agents are added which help to settle the sludge in a series of flotation tanks while leaving the beryllium sulfate in solution. The sludge is stirred by counter current decantation and pumped from tank to tank as the dissolved beryllium sulfate is washed over the side to continue the process.
Outotec’s scope covers the design and delivery of an AG mill, counter current decantation thickener and a tailings filter for San Dimas, and thickeners and a tailings filter for Santa Elena. The deliveries are expected to take place in 2020 and 2021, it said.
Counter current decantation Page 1 of 1. Tenova Delkor delivers thickeners to Morocco. Tenova Delkor has supplied a Moroccan silver leaching plant with sedimentation equipment Plant 17 JULY 2019. installing CCD circuit at Husab.
underflow slurry as a counter current the optimization of flowsheets involving a simple countercurrent-decantation circuit. need to take current thickener designs to the next level and
3 Counter Current Decantation (CCD) Simulations Data from oratory thickener simulations was used to simulate various CCD design options. The CCD circuit design for Ruashi is shown in Figure 6 below. The CCD simulations calculate soluble metal recoveries for changes in the most important variables affecting CCD wash recovery which include:
comprised of multiple thickeners in series, where the solids in the underflow are moved sequentially downstream while the supernatant solution is moved continuously upstream against the flow of solids, hence the name Counter Current Decantation. Capital and operating
Feb 18, 2017· 2. Counter current decantation. 2.1. Description of counter current decantation. The wash of pulp in the CCD is done according to two principles. The
dam capacity, counter-current decantation, increasing filter capacity and improving recovery of process water or chemicals. Outotec Paste Thickeners Outotec Vane Feedwell Controlled solids inventory High throughput per unit area Free standing or on-ground tanks High rake torque capacity Extended high compression zone
• Counter Current Decantation (C.C.D) • Clarification of Pregnant Liquor Solutions (P.L.S.) • Water Treatment Applications • Liquor Applications in the Pulp & Paper • Chemical Processing • Neutralisation of Acid Mine Water tHiCkener & ClariFier types
