Gravity separation application

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Re-election is suitable for processing useful mineral and has a bigger density difference between the gangue minerals or other materials. It deals with thick bead, and fine grain in grain boundaries (roughly) is greater than 25 mm, 25 '2 mm, 2 ~ o. 1 millimeter) of the ore effective methods. In dealing with subtle exploratory experiment (less than 0.1 mm) the efficiency is not high, the modern flow film processing equipment effective recovery grain to 20-30 level can micron, centrifugal machine can to 10 microns dressing.
Re-election method is deal with tungsten, tin, gold ore, especially ShaJin processing, the traditional method of tin ore. In treating of rare metal (nb and ta, titanium, zirconium, etc.) used in the placers is also common. Re-election is also used to sorting weak magnetic iron ore, manganese ore stone, chromium minerals.

In the coal cleaning industry re-election is the main method. Nonmetallic mineral processing industry in recent years in re-election also obtained the development, mainly used for processing the asbestos, diamond, kaolin, apatite, pyrite mine ore, etc. Choose in copper, lead, zinc, antimony sulfide ore, mercury and other flotation factory. Often the re-election of primary minerals. In the process of mating re-election often and other beneficiation process up the process to (early in the thick bead state elected concentrate or tailings. Heavy this will help reduce the production cost and reduce metal loss. When dealing with some ore have many kinds of methods to choose from, re-election method is preferred.

Re-election in certain fluid to medium, medium used normally water, also sometimes with air or heavy medium (heavy liquid or heavy suspension). Medium sorting equipment to be in the way of the sport. By the buoyancy of medium mineral grains and fluid dynamic function and loose, and then reach by density (sometimes according to size) sent stratification. Effects of the process of nature of layered ore is its density, grain

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