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In mining industry, screw separation machine is widely used in the production flow of metal processing. According to the difference in sedimentation rate of mineral particles and mud, the particle sizes of ores with 1.5mm-0.03mm are classified. Waste mud or water for ore sand can be separated from the ores. It’s also usually applied to ore washing, desliming and dehydration and so on.

Gravity separators have been used in coal industry for several decades. Generally, the technologies of separation can be divided into four kinds: dense-media separation, bed separation, mobile-layer separation, and centrifugal separation. The technology adopted by spiral concentrator is the combination of bed separation, mobile-layer separation and centrifugal separation. Gravity spiral chute applies to sorting size 0.3-0.02mm fine materials of coal, however, in many cases; this range can be expanded into 3-0.074mms.

Gravity spiral chute is a combination of spiral concentrator, spiral chute, a double, centrifugal concentrator features, in 1977 for the development of a new national initiative of the equipment, mining, mineral processing the best equipment, especially coastal, river, Sand Beach, River Road, placer mining is more ideal.

Low-cost but high-efficiency spiral concentrator It has been proved that spiral concentrator works efficiently in a coal separating plant. This useful equipment combines with traditional system of slack-coal and coal-slurry. Compared with the system of water-only cyclone, the investment and operation cost of spiral concentrator is much lower. Unlike the other separation equipment, spiral concentrator takes up small space, because its main parts, such as pump pond, pipeline cover a small area. If you have a spiral concentrator, you can save much budget for your factory buildings, and need not worry about the large expense on heating or ventilation.

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The spiral chute erected, vertical alignment, or wood with a metal frame fixed in place by the sand pump the ore to the feed screw on the top two ports, by adding additional water, adjusting the concentration of mineral paddle, paddle natural mineral swirl down from the high, the slope in the rotation velocity of the centrifugal force generated in a kind of inertia to the proportion of ore, particle size, shape differences, through the swirl of gravity and centrifugal force will separate the ore and sand, fine ore concentrate into a bucket with a pipe connection, end bucket of sand flowing into the tailings pond pipe received sand, then sand pump to drain away, completing the whole process of dressing.