Mineral processing plant varies from ore to ore, and different mineral processing equipment is applied in the different plants. For magnetite, Xinhai created some sparkles for the dressing plant.
1. Autogenous mill with high efficiency
A jaw crusher is the first step to make the materials broken into uniform small pieces. Make the size of 350-750mm reach 160-200mm. Then the ore is fed to ultra-fine laminating autogenous mill. Compared to the traditional mills, Xinhai autogenous mill has a large handling capacity of 2500 tons/day. Under the circumstance that an autogenous mill is equipped and the maximum particle size is up to 160mm, the particle size is as follows: -200 mesh accounts for 45%; +200 mesh～to 2mm accounts for 45%; -2mm～6mm accounts for 8%; +6mm～10mm accounts for 2%. The processing capacity of accessory ball mills can reach 2500 tons/day, which is 217.39% of conventional ball mills. During the discharging process of autogenous mills, products (-200 mesh, account for 45%) get through the hydro-cyclone and skip ball mills and directly enter next processing stage.
The essential component is a cylinder with bigger diameter and smaller length which is slowly revolved via transmission machinery. Materials are fed into central sleeve where ores are fully grinded due to the falling impact and autogenous grinding. Ore materials which are eligible for the particle size standard and pass through grid plate are discharged from another side of central sleeve, with the aid of overflow water.
2. Tailings discarding and classification in advance
Because the particle size of the products is fine, a strong magnetic separator with 4000-5000e can be used for tailings discarding in advance.
In the first stage, the pulp is grading with hydraulic cyclones. The insert materials of sieve plates and cyclones are the abrasion resistant rubber which is developed by Xinhai with the technology of liquid phase nanometer formula • ordinary temperature high frequency curing.
In the second stage, ball mills and cyclones constitute a closed circuit to regrind.
Tags:Autogenous mill, magnetite processing, tailings
From:Xinhai Mining Machinery Company
