Philippines Iron ore drying project, Drying of limonite (Fe ₂ O ∝· nH ₂ O), wet ore → crushing (anti caking) → drum drying (high-temperature hot air) → dry ore (moisture content ≤ 8%) → magnetic separation.
Drying temperature: 500-700 ℃ (to avoid excessive oxidation).
Heat source: natural gas, coal powder, or sintering waste heat.
Equipment: Rotary drum dryer (high temperature resistant, adjustable speed).
