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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.
As a leading mining machinery manufacturer and exporter in China, we are always here to provide you with high quality products and better services. Welcome to contact us through one of the following ways or visit our company and factories.
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.
Mining Spiral Concentrator, Gold Shaking Table, Feeding Machinery manufacturer / supplier in China, offering 200tph Rock River Alluvial Sand Gold Processing Plant for Gold Mining Equipment, High Quality Mini Home Use Manganese Steel Hammer Mill Fine Stone Crusher PC-600X400, High Quality Mobile Small Mining Stone Crushing Big Mouth Rock Jaw Crusher Machine and so on.
Ball Mill, Jaw Crusher, Mine Hoist manufacturer / supplier in China, offering Rotary Kiln Spare Parts Rotary Kiln Tyre/Ring, Factory Sell Vertical Shaft Impact Crusher for Sand Stone Making/Limestone Crusher, Mining Parts Stainless Forging&Casting Pinion Shaft/Shaft Manufacturer and so on.
The spiral separator is the best gravity concentrating equipment, especially for concentrating sand ore in seashore and riverside. It is made of the fiberglass, lined with wear-resistant polyurethane and covered with corundum cover. It has advantages such as lightweight, moisture proof, anti-rust and corrosion, noiseless, very suitable for the different feeding particle sizes and grades.
Capacity: 0.15-8t/h Feeding size: 0.3-0.02mm Advantages: 1. Simple structure, easy to operate and maintain 2. Low energy consumption 3. Relate wide range of particle size 4. Small volume, space saving 5. High productivity and efficiency
Main parts: ore distributor, feed chute, spiral chute section, cutting trough, collecting hopper, support, etc. Spiral separator types: single spiral separator, lab spiral separator, rotary spiral separator, multi-deck spiral separator.
Application: The spiral separators are designed for classifying the granularity 0.3-0.02 millimeters fine grain like iron, hematite, ilmenite, chromite, brasses, tin, tungsten, tantalum-niobium, gold ore, coal mine, monazite, rutile, zircon, and other Non-ferrous metal, rare metal, and non-metallic minerals with different specific gravity in the mineral processing plant.
Working principle of spiral separators The ore materials are separated by the specific difference of gravity force, inertial centrifugal force, flow force, and surface friction of the light and heavy ore particles in the downward flow along the spiral tube slope. Generally speaking, the movement of the slurry flow on the spiral concentrating tables surface produces two directions, one is the longitudinal flow which rotates swiftly around the vertical axis of the spiral chute and down along the chute surface, which is called the main flow, the other is the transverse flow which rotates around a balance layer of the ore flow itself, called transverse circulation flow or vice flow. Under the comprehensive action of longitudinal main flow and transverse circulation, the mineral particles on the surface of spiral classifier move differently along longitudinal and transverse direction due to different density, particle size and shape, and settle at the bottom of the spiral groove in different time and speed, so the mineral particles are stratified according to density and particle size.
Stratification is the first stage of the separation process, which is basically completed after the first processing circuit of the spiral separators. After delamination, the light mineral particles in the upper layer flow to the outer edge of the spiral separator machine gradually, while the heavy mineral particles in the lower layer are affected less by the longitudinal main flow and move to the inner edge gradually. In this way, the layered particles are divided again, which is the second stage called zoning, completed after series ( 3-5 times ) sorting process. After the above two stages, the ore intercepting trough and the ore receiving hopper discharge the different grade separation products from the clay trough, and the separation process is completed.
The grain size distribution rule along the cross-section of the wet spiral separator is as follows: under normal ore-feeding conditions, more than 70% of the ore particles are concentrated in the middle of the spiral concentrator beneficiation area; About 20% of the ore grains are located at the inner edge of the chute; Less than 10% of fine ore grains are near the outer margin.
JXSC spiral separator manufacturer ( and other mining equipment) focuses on producing spiral gravity separator decades of year, qualified separator machines popular in the world market of various mineral processing. Contact us to the spiral separator price, installation instruction and special design service. Spiral separator for sale. Click to find more gravity concentration methods in mineral processing.
Mining Equipment Manufacturers, Our Main Products: Gold Trommel, Gold Wash Plant, Dense Media Separation System, CIP, CIL, Ball Mill, Trommel Scrubber, Shaker Table, Jig Concentrator, Spiral Separator, Slurry Pump, Trommel Screen.
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