High Productivity Operation at Chiba No. 4 Sinter Plant

Abstract

To meet the demand for increased production, higher productivity has been carried out based on the following targets at Chiba No. 4 Sinter Plant of Kawasaki Steel Corp.:
1) Maintenance of high bed height operation by ensuring stable permeability in the sinter bed,
2) Cost saving sinter production through improvement of sinter yield, and
3) Maintenance of low SiO₂ operation.
The following results were obtained from the implementation of various countermeasures.
(1) A highly productive operation of 1.8 t/hm² without adding any binders.
(2) The total amount of return fine has been decreased from 400–450 to 260–300 kg/t-sinter.
(3) Sinter production cost has been decreased and the minimum cost per unit has shifted to a higher output.