Gravity Spiral Chute Concentrator For Gold Tin Mineral Processing Plant Supplier

During separation, the slurry enters the spiral through a feed box and then flows on to the spiral surface. As the slurry travels down the spiral, mineral grains settle and sort according to size, shape, and specific gravity.Spiral separation uses a flowing film principle based on the size and specific gravity difference present in a mineral suite. When fed a dilute pulp mixture of minerals of different specific gravities, the lighter minerals are more readily suspended by the water and attain relatively high tangential velocities so that they climb toward the outer rim of the spiral trough. At the same time, the heavier, non-suspended grains migrate by saltation (non-linear motion that is a combination of rolling and bouncing) along the spiral surface at the lowest portion of the spiral cross section. In a spiral, heavy mineral concentrate is selectively directed into the spiral trough near the inside of the spiral surface through the use of adjustable product splitters. The concentrate then flows through product discharge outlet ports down the length of the helix.Like most concentrating devices that utilize physical separation principles, the spiral works best on a closely sized feed, though in select cases the unit has some tolerance for wide size ranges. In general, a coarse size limit would be about 1 mm (20 mesh) and a fine limit of approximately 45μm (325 mesh). For best performance, feed should be relatively free of slimes as a high slime content may act like a heavy medium and decrease the effective differences in specific gravity between the minerals to be separated. If slime is in excess of 10% by weight, desliming prior to spiral concentration will almost certainly result in improved spiral performance.In general, a specific gravity difference of at least 1 is required between light and heavy particles for successful gravity separation.

Introduction: Spiral concentrators are used for a number of mineral processing applications. They're extensively used to process heavy mineral sand deposits, including monazite, zircon, ilmenite and rutile deposits. More recently, spiral concentrators have been widely used to recover fine coal as well as gold, iron ore and other minerals.

Introduction: ALICOCO spiral concentrators are used throughout the world in plants that process materials like coal, gold, iron ore, mineral sands, platinum and chrome.Our turnkey equipment for gravity concentration is used around the world because the ALICOCO team can deliver end-to-end spiral solutions, ranging from process audits and test work to complete spiral concentration plants that are optimized for your processes. Our global branch network supports you with tailored field service, readily available spare parts and our signature after-sales service.

Thickeners can present operators with many challenges including those related to process conditions such as changing ore characteristics and increased throughput requirements. Additionally, equipment availability and reliability is paramount so that the thickener role in the plant process does not hinder overall performance. It is therefore vital to take a comprehensive services approach with capable personnel for optimal plant operation with accessible operational support.

ALICOCO spiral concentrators are used throughout the world in plants that process materials like coal, gold, iron ore, mineral sands, platinum and chrome.

Efficient concentration depends on proper selection of draw-off ports and the splitter openings used. Heavy minerals such as ilmenite or hematite settle out rapidly in a spiral concentrator and they should be removed as soon as a good wide band forms. Since the concentrate band is wider at the top, splitters near the top of the spiral concentrator should be opened wider than those near the bottom. This means that the splitters collect concentrate at a relatively uniform grade rather than uniform rate.

Alicoco Wholesale spiral concentrators with good price - AlicocoIntroduction:The spiral concentrator is a modern high-capacity and low-cost device. It is developed for concentration of low-grade ores and industrial minerals in slurry form. It works on a combination of solid particle density and its hydrodynamic dragging properties. The spirals consist of a single or double helical conduit or sluice wrapped around a central collection column. The device has a wash water channel and a series of concentrate removal ports placed at regular intervals. Separation is achieved by stratification of material caused by a complex combined effect of centrifugal force, differential settling, and heavy particle migration through the bed to the inner part of the conduit. Extensive application is the treatment of heavy mineral beach sand consisting of monazite, ilmenite, rutile, zircon, garnet, and upgrade chromite concentrate. Two or more spirals are constructed around one central column to increase the amount of material that can be processed by a single integrated unit.

High Efficiency Spiral concentrators are used for a number of mineral processing applications. They’re extensively used to process heavy mineral sand deposits, including monazite, zircon, ilmenite and rutile deposits. More recently, spiral concentrators have been widely used to recover fine coal as well as gold, iron ore and other minerals.