If iron removal through PTMS MAGNETIC SEPARATION is conducted too early after coarse crushing, the unprocessed ore will still contain substantial amounts of potassium feldspar coexisting with gangue minerals. This premature treatment may cause valuable minerals to be lost along with the fine slurry. Conversely, if iron removal is delayed until the flotation stage, the mineral slurry will have already undergone reactions, the reagents will be wasted, and the froth system will be disrupted. At this point, remediation becomes impossible.
For different ore types, the iron removal timing in PTMS MAGNETIC SEPARATION requires further refinement. Taking **weathered sand ore** as an example, this type of ore is typically loosely piled and can be directly screened and washed without deep crushing. Therefore, iron removal is often completed simultaneously with washing, forming a "one-step" pretreatment process.
The standard PTMS MAGNETIC SEPARATION iron removal process involves feeding raw ore into a vibrating screen via a forklift, where water is sprayed to rinse the ore during screening. Coarse particles (>6mm) are directly sent to stockpiles or further processing, while fine particles (<6mm) undergo secondary cleaning in a spiral PTMS MAGNETIC SEPARATION or washing tank, achieving integrated separation of coarse and fine particles along with iron sand.
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