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
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