Spiral chute is a kind of high-efficiency gravity separation equipment. It can be used in the materials such as iron ore, ilmenite, chromite, pyrite, zircon, rutile, monazite, tungsten, tin, tantalum, niobium, etc.
Spiral chute, integrated the characteristics of spiral concentrator, shaking table and centrifugal concentrator, is the best equipment for mining and beneficiation, especially for placer mining on seashores, riversides, sand beaches, and streams.
This equipment is suitable for the separation of iron ore, ilmenite, chromite, pyrite, zircon, rutile, monazite, phosphonite, tungsten ore, tin ore, strontium as well as antimony ore and other non-ferrous metals, rare metals and non-metallic mineral bodies with different specific gravity with a particle size of 0.3 - 0.02 mm.
The main part of the spiral chute device is the spiral flight which is made of glass fiber reinforced plastic. The inner surface of the spiral groove is coated with a wear-resistant lining, usually a polyurethane wear-resistant glue or an epoxy resin mixed with artificial gold steel sand.
There are a miner and a feed tank in the upper part of the spiral chute, and a product interceptor and a collecting tank in the lower part. The entire equipment is framed vertically with steel frames.
The spiral chute is similar to the thread shape. The movement of the materials inside can be divided into three stages, which are the material introduction stage, material acceleration phase and material uniform velocity warehouse phase. And the third stage lasts the longest, which is the key for materials crushing.
The key to the design of the spiral chute is in the uniform velocity stage. The main parameters are radius R, bottom plate width b, elevation height h, helix angle mouth, and bottom plate radial inclination angle.
Spiral chutes are widely used in the selection of hematite, the recovery of heavy minerals in tailings, and the selection of rare and non-ferrous metals. This is because it has the following advantages:
It has characteristics of reasonable structure, simple installation, small floor space, simple operation, stable ore dressing, clear mineralization, large processing capacity, high efficiency, high enrichment ratio, high recovery rate and reliable operation.
The spiral chute is not critical to the operation requirements (such as grain size, mass fraction, etc.). Even if the ore supply, ore concentration, ore size and ore grade change, there is almost no influence on the selection index, which means that it has strong adaptability.
The spiral chute is not only easy to operate, but also achieves a good treatment effect. It is characterized by stable ore dressing, clear ore separation, large processing capacity, high efficiency, and high enrichment ratio.
According to the difference in the specific gravity, particle size and shape of the ore, the ore and sand are separated by the gravity and centrifugal force of the swirling flow. The concentrate flows into the concentrate bucket. The tailings flow into the tailing bucket which is connected to the sand pool with the pipe and then they are discharged with the sand pump, completing the whole process of dressing.
The spiral chutes produced by Fote are mainly used in metal mines, coal industry, power environmental protection and other industries. They are sold well at home and abroad, and various types of equipment meet the needs of different industries.
Fote timely follows up product installation and maintenance. In the fierce market competition, relying on leading technical advantages, excellent product quality and perfect after-sales service, Fote's products are exported to more than 200 countries and area.
The gold content in the gold deposit is extremely low, and it is usually necessary to use refining by gravity separation, flotation, amalgamation, magnetic separation and electro-selection, and at the same time, high-efficiency and energy-saving gold ore beneficiation equipment are arranged for beneficiation and enrichment.
Crushing equipment: Jaw crusher. It is flexibly used for gold ore crushing according to different gold selection requirements, further improves gold mining efficiency and recovery rate, and reduces gold mine loss rate.
Washing: Some gold mines have a high mud content, and the soil is very sticky. It is easy to wrap the gold grains in the soil and cannot be extracted. Therefore, for such gold mines with more sticky soil, the first thing to do is the washing of the mine.
Screening: Cylinder washing machine. Because the gold in the gold deposit is free, the monomer dissociation degree of gold and sandstone is very high, and the large river pebbles are gold-free, thus it is necessary to screen the waste rock.
Rough selection equipment: Spiral chute. Gold mine after washing and sieving enters into rough re-election process. Gold mine with lower gold content generally adopts gold chute to raise gold which has a large processing capacity and low ore dressing cost.
Magnetic separation: Magnetic separator. Iron and ferrotitanium contained in gold deposits contain strong magnetism and weak magnetic properties. Different grades of iron concentrate and ferrotitanium powder can be obtained through different magnetic separators.
So far, the set of equipment has been running stably, which has brought considerable benefits to users. Because of its high quality and low price, reliable after-sales service and simple installation, it has attracted more customers.
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Based on the high quality and complete after-sales service, our products have been exported to more than 120 countries and regions. Fote Machinery has been the choice of more than 200,000 customers.