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Paste backfilling, the process by which a combination of tailings, water and cementacious materials are blended and used to fill voids in underground mining operations, provides a broad range of benefits.
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· To maximize water reuse, the Khumani plant contracted with WesTech Engineering, Inc. to design and implement a two-stage tailings thickening process. The first stage consists of two primary high-rate traction slurry thickeners, each 295 feet in diameter, situated at the main plant. The first was installed in 2008, with the opening of …
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· This increased the system’s underflow density, reducing the need for cyanide and lime in the thickening process and increasing residence times. This also reduces the amount of flocculants needed in the thickening process.
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Download scientific diagram | Thickening Process Plant in Sierra Gorda Mining Project. from publication: Sustainable Management of Thickened Tailings in Chile and Peru: A Review of Practical ...
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The thickening of mine tailings removes a portion of the liquid phase, increasing the density of the solid waste and reducing the footprint of storage dams.
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· 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.
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· Measurement and intelligent control in mineral processing plant is the technology that is used to automatically measure, analyze, and control the key process parameters during mineral processes such as crushing, grinding, gravity separation, magnetic separation, flotation, thickening, and dehydration, so as to balance and …
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Measuring density in thickening process Compared to other technologies, you can process high volumes of slurry at a quite low cost by sedimentation using thickeners in mineral processing.
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Improve Mine Productivity and Reduce Environmental Impact Inevitably, underground mining creates cavities in the earth. Paste thickening is an attractive alternative to conventional tailings management solutions, especially as it applies to backfill. The paste backfill process can dispose sludge and/or tailings that may contain hazardous …
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· Through the online measurement of the thickener operation parameters including feed flow rate, mud bed level, and underflow concentration, an intelligent control strategy for thickener underflow and flocculant addition is proposed based on the mass balance model and expert rules. Based on the strategy, some guidelines concerning …
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As leaders in high-rate thickening, our thickeners offer low cost, reduced footprint, efficient flocculant use, and advanced automation. We specialize in brownfield integration projects, from retrofitting to turnkey design and fabrication. Our specialists contribute to thickener technology development for solid-liquid separation efficiency ...
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The control of the thickener must accommodate fluctuations in the process stream. This control is achieved by manipulating both the flocculant addition and the rate of underflow pumping. However fluctuations in ore type cause random changes in the required flocculant dosing. With PID loop control the thickener inventory can be controlled ...
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