Zircon dressing process plan and equipment
December.26,2024
Zircon is mostly found in ilmenite, and is often associated with heavy minerals such as hematite, chromite and garnet. Therefore, the initial stage of zircon enrichment often uses gravity separation, such as using a shaking table to separate heavy minerals from gangue (quartz, feldspar, biotite), and then using other beneficiation methods to separate it from other heavy minerals.
Zircon dressing plants are often divided into two parts: wet treatment and dry treatment.
The original ore is first treated in the wet treatment stage with gravity separation equipment such as a roundhouse concentrator, spiral concentrator, shaking table or jig to remove gangue minerals such as quartz, feldspar, and mica. The heavy minerals (rough concentrate) obtained are further removed from the remaining light minerals after 2 to 4 stages of selection, and then sent to the dry treatment section for further separation after concentration, dehydration, drying and cooling.
The dry treatment section generally consists of weak magnetic separation, strong magnetic separation and electric separation. The purpose is to comprehensively recover magnetite, ilmenite, rutile and monazite that coexist with zircon. According to the differences in the magnetic properties and electrical conductivity of the minerals, magnetite can be recovered by weak magnetic separation, ilmenite, garnet, etc. can be recovered by strong magnetic separation, and finally monazite, rutile and zircon are separated by high-voltage electrostatic concentrator.
