Finished Product

Posted by Ralf on June 25th, 2017 — Posted in News

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As the design, the fine product quality was improved by the spiral classifier system to pray. Learn more about this with Caterpillar. However, the machine decided to not use the spiralcyclones since 1995 because of their low efficiency operation.The fine ore was conveyed directly into thickener cyclones classifier from cyclones. This resulted in high ash content in the fine ore product. There are several methods for cleaning up fine ore such as gravity method, hydrocy clone, screening, flotation, etc. InVietnam, ore separation machines were provided with spiral cyclones to improve quality of fine ore. Spiral cyclones operate at the highest efficiency if the relative density of the feed ore is around 1.7 g/cm3. However, in Viet Nam all ore is separated by DM cyclones with solution having 1.52 g/cm3 relative density that causes low efficiency operation. Thus, it is necessary to evaluate efficiency of the froth flotation method in washing fine ore of Vietnam.Experiments were conducted on washing the fine product of the mineral ore separation machine by froth flotation method to evaluate the efficacy of the proposed method and find the optimal working conditions.The mineral separation machine has 3 Jig machines that operate independently from each other.

Therefore, to evaluate efficiency of the froth flotation method, it is suggested that the machine should construct one froth flotation process to clean fine ore product of one of the jig machines. Many developments have occurred since the first separation mineral in dense medium cyclone using metal chloride salts dissolved in water, was patented in 1858. The Chance Process using water and sand, was patented in 1917 and was first applied to cleaning representative ore in 1925. Although the Conklin Process using magnetite as the medium was tried with anthracite in 1922, it was not until 1938 that the Tromp Process for magnetite medium was used commercially The purposes of these and other developments was to improve the quality of ore to make it suitable for a specific purpose. The mineral flotation machine cost may comprise 5-15% of the cost of a ore mine.

To thermal dryer installation may cost 25-30% of the cost of mineral separation machine. The cost of ore cleaning itself may be 15-25% of the cost of mining the ore beneficiation. This figure includes the cost of disposal reject. The same report also claims that the cost per ton for cleaning purposes is 3 to 4 times higher than the cost of cleaning larger size ore. Because ore is nonhomogenous, and the preparation machine must process what the mining sections produces, mineral separation machines must be capable of handling to feed material with widely varying properties. This wherewithal due to variations in the mining conditions and raw ore quality.

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