iron ores beneficiation crusher machine in Tanzania

In the iron ore crushing process, several processes such as feeder, first crushing, secondary crushing, screening, fine crushing and dry sorting are generally used. The higher the percentage of stone that is dry selected. Some small concentrators directly dry the iron ore crushed by the fine jaw crusher, resulting in a serious waste of natural resources.

Therefore, choosing the most economical production method and maximizing the dry concentration of iron ore is a subject that iron ore beneficiation units must face and study. At present, a large number of domestic individual beneficiation units use traditional hammer crushing, which is a production mode with the lowest investment cost, which not only has low production efficiency, but also causes great waste of natural resources.

broken head

Jaw crushers are generally used for head crushing in iron ore production operations, and gyratory crushers are used in large production units (especially large foreign mines). Jaw crusher is the most traditional and most stable and reliable primary crushing equipment, and has the widest application range. In 2013, the manufacturing process and technical level of jaw crusher have been very mature. As long as the products of regular manufacturers are used, they can meet the design and production requirements.

two broken

In the iron ore crushing production process, there are generally two types of secondary crushers: either fine jaw crushers or cone crushers.

The fine jaw crusher is generally used for small iron ore dressing fields, and its equipment value is low, the structure is simple, and the maintenance is simple and convenient. However, the discharge opening of the fine jaw crusher can only be adjusted to a minimum of 25mm, so the crushing particle size is generally below 40mm.

The structure of the cone crusher is more complex and the equipment value is higher. However, its output is larger, the crushing particle size is smaller, and the service life of wear-resistant parts is longer. Therefore, cone crushers are widely used in relatively large iron ore dressing fields.

From the production efficiency and cost of iron ore, the use of cone crusher can effectively reduce the production cost. Because the cone crusher can provide a smaller product size, from the overall process, the use of lamination equipment to complete the main crushing task of iron ore is the most economical production method.

finely sieved

The screening equipment generally uses a circular vibrating screen to screen the materials after the second crushing. Generally, materials with a size of 10mm or less can be screened for dry selection. After screening, materials with a size of 10-40mm enter the fine crusher for fine crushing. Of course, the particle size range of screening can be adjusted according to the actual situation, in order to achieve the most economical operation mode.