Abstract: In view of too high moisture of iron concentrate cake of disk vacuum filter press in Ekou Iron Concentrator, Tai Steel Group, laboratory press filtration test was made using KM9/1000 rapid filter press. The results showed that the cake moisture was reduced to below 8% at a filter chamber depth of 40 mm, feeding pressure of 0.8 MPa， simultaneous cake pressing and blowing at 0.5 MPa under diagram press filtration mode The site test on the same press filtration scheme was carried out in Eokou Iron Concentrator, an average cake moisture of 7.3% was obtained at a unit throughput of 408 kg/(m²·h), validating the feasibility of using KM rapid filter press to treat Ekou iron concentrate.

Key words: Iron concentrate, KM rapid filter press, Diagram press filtration, Compression, Cake blowing