Tungsten ore beneficiation process

Tungsten ore beneficiation processComplete equipment configuration

Jigging machine, shaking table, chute, centrifugal concentrator, jaw crusher, ball mill, classifier, magnetic separator, flotation machine, thickener, dryer, etc

Tungsten ore beneficiation process Device image

Tungsten ore beneficiation process introduce

1、 Introduction

Tungsten is a high melting point rare metal or refractory rare metal in the fields of metallurgy and metal materials, widely used in various fields such as the universe, atomic energy, shipbuilding, automotive industry, electrical industry, electronics industry, chemical industry, etc. The tungsten ore beneficiation process mainly includes manual beneficiation, heavy medium Wolframite beneficiation technology, gravity Wolframite beneficiation technology, flotation Scheelite beneficiation method, magnetic Wolframite beneficiation technology and electric Scheelite beneficiation method. Wolframite is mainly selected by gravity, and Scheelite is mainly selected by flotation. Most Wolframite ores in China are easy to concentrate. Scheelite is a complex ore with a low grade and difficult to concentrate. In addition, the tungsten oxide wolfram has not been recycled yet.

2、 Process classification

1.Gravity concentration method:

in some media or media flow (mainly water), mineral processing is carried out according to the Density contrast of minerals. The advantages of gravity concentration Wolframite beneficiation technology are simple equipment structure, convenient operation and low production cost. Common Wolframite dressing equipment includes heavy medium equipment, jigger, shaker, chute, centrifugal concentrator, etc.

2. Flotation: 

It is the most widely used method in tungsten ore beneficiation production lines, which separates useful minerals from minerals based on the physical and chemical properties of the mineral particle surface. Fine particles and materials, as well as fine particles that are difficult to recover by other mineral processing methods, are suitable for flotation. Union Carbide Corporation of America has developed lime flotation of Scheelite, and shear flocculation flotation has also been used in some plants for Scheelite beneficiation production lines.

3. Magnetic separation: 

It is a method of using magnetic force to remove magnetic metal impurities from oil. The application of magnetic separation is to use the magnetic differences of various ores or materials to select under the action of magnetic force and other forces.

Cleaning method: Separation method based on mineral density. Place the sand sample in a sand tray filled with water, repeatedly vibrate, stir, and clean, leaving heavy minerals at the bottom of the tray and light minerals floating out with water to separate heavy minerals.

3、 Tungsten ore beneficiation equipment

The production line of Scheelite beneficiation technology equipment is composed of jaw crusher, ball mill, grader, magnetic separator, flotation machine, thickener, dryer and other main equipment, which can form a complete production line of Scheelite beneficiation technology with feeder, elevator and conveyor. The production line of Scheelite beneficiation technology equipment has the advantages of high efficiency, low energy consumption, high processing capacity, and reasonable economy. The technical equipment for Scheelite beneficiation can also be combined with ore feeders, elevators, etc. to form a complete tungsten ore beneficiation production line. Our company can provide customers with a series of products. The whole set of Scheelite beneficiation technology and equipment has the advantages of high yield, low energy, high processing capacity, and economic rationality.

4、 Process flow

The mined ore is initially crushed by a jaw crusher, and after being crushed to a reasonable fineness, it is evenly fed into a ball mill by a hoist and feeder. The ball mill then crushes and grinds the ore. The fine ore material ground by a ball mill enters the next process: classification. The spiral classifier uses different specific gravity of solid particles to precipitate at different rates in the liquid, cleaning and grading the ore mixture. When the cleaned and graded mineral mixture passes through a magnetic separator, due to the different specific magnetization coefficients of various minerals, the magnetic substances in the mixture are separated by magnetic and mechanical forces. The mineral particles preliminarily separated by the magnetic separator are fed into the flotation machine, and different drugs are added according to different mineral characteristics to separate the required minerals from other substances. When the required minerals are separated, due to the presence of a large amount of water for separation, they must be initially concentrated by a thickener and then dried by a dryer to obtain dry minerals.

Tungsten ore beneficiation process