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Jiangsu zhongbo Heavy Machinery
Jiangsu zhongbo Heavy Machinery
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Tungsten ore processing plant

Place of Origin : china
Brand Name : Shanghai Zhongbo Machinery
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Tungsten ore processing plant

Wolframite sorting are based on gravity separation and flotation methods. Generally use the gravity separation of coarse recycled fine grade recovery methods often used combined processes, such as the gravity beneficiation --- magnetic separation, magnetic separation - flotation, gravity beneficiation - flotation method. Scheelite sorting mainly used flotation method, its selection process mainly include heating method and the 731 normal method. For black and white Tungsten Ore, relatively fine grain size and associated with sulphide ore, generally using flotation process.

Wolframite ore beneficiation process

Wolframite ore sorting process is the most important gravity beneficiation. Used a multi-stage process jigging, multi-level shaker, regrinding middlings, fine mud alone treatment and so on. The gravity beneficiation of traditional wolframite are mainly table drop tail and Jigging early harvest. With the development of beneficiation process and technology, centrifugal concentrator and other new devices have been developed and widely used.

Wolframite gravity beneficiation line

As the heavy density of wolframite , its recovery is often used gravity beneficiation process, according to the different sorting equipment, is divided into jig beneficiation method and the spiral chute beneficiation method.
Jig beneficiation method is the main wolframite ore beneficiation processes. Since moving sieve jig jigging chamber bed down vibration sieve media campaign combined with water, can be obtained larger stroke than conventional diaphragm jig , which has a coarse grain size sorting, processing capacity, the efficiency of sorting high water consumption characteristics of a small, is a coarse, medium and fine grain ore gravity concentration equipment, It is widely used in wolframite mines.

The principle of spiral chute sorting of pulp flow is perpendicular to the center axis and the transverse circulation under rotation movement, according to density and particle size of the ore Layered and with, so as to achieve the purpose of separation. It has a large capacity, no transmission parts, no power, no need to add water, simple structure, less maintenance costs, sorting effect, the process is stable, reliable and environmentally friendly indicators, etc.. Against a refractory tungsten ore (wolframite 95%, 5% of scheelite) crude selection, carried out with wet high intensity magnetic separation spiral chute comparison test. Spiral chute made ​​rougher concentrate grade 1.58%, recovery 78.99%, yield 20.08%; wet high intensity magnetic separation, concentrate grade of 2.37%, the recovery rate 81.35%, yield 15.03% of the test target. The results show that with the wet high intensity magnetic separation spiral chute sorting indicators are similar, but beneficiation spiral chute much lower cost.

Centrifugal concentrator has a large capacity, low minimum recycling grain, mineral recovery advantages, which has been repeatedly used to fine mud tungsten recovery process. For roughing operations, enrichment ratio up to 3 - 6 times, the recovery rate of up to 75% - 80%; for the selected job enrichment ratio up to 3-5 times the recovery of up to 85% - 90% of tungsten fine mud comprehensive recovery up to 66% or more.

Wolframite slime flotation plant

Wolframite is brittle, easily over crushed. Gravity beneficiation recovery of fine mud tungsten ore recovery is generally less than 45%. On fine mud wolframite flotation process can be recycled.

Wolframite magnetic separation plant
Wolframite is the weak magnetic minerals, can be used high intensity magnetic separation process separate wolframite and scheelite and other non-magnetic mineral . The emergence of high-intensity magnetic separation equipment added new vitality for the magnetic separation of wolframite, such as high gradient magnetic separator. Tungsten fine mud with high gradient magnetic separator roughing, once selected, the second sweep the election of magnetic separation process, when the feed grade is 0.43% ,obtained the concentrate grade of 21.89%, 77.11% tungsten recovery of fine mud. High gradient magnetic has a good effect when separator for fine mud wolframite sorting , especially for less than 10g / g micro mud recovery effect is superior to other sorting methods. Therefore, high gradient magnetic separator for sorting wolframite fine mud is worthy of promotion and attention efficient equipment.

Scheelite ore beneficiation process

generally the grain size of scheelite is finer ,and floatation is good, the main scheelite recovery process is the flotation. Scheelite flotation can be divided into: the rougher sections and selected segments. Roughing out sections to maximize gangue mineral enrichment ratio increased rougher for the purpose of selection is the key to scheelite flotation. Coarse scheelite concentrate selection process currently include heating method and the normal method 731.

The development of flotation device

In recent years, the flotation machine used for tungsten ore flotation has made ​​a breakthrough. The flotation machine as scheelite recovery rougher flotation device body segments, not only simplifies the process, improves and stabilize the process indicators, but also improve the degree of automation and control plant, effectively reduce the labor intensity. Flotation machine successfully applicate in comprehensive recovery of low-grade and refractory scheelite.

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