The PAN-1 high effective flocculant not only raised the capacity of settling tank in sintering process, but also lowered overflow suspensions and reduced water into the process.

The mathematical model has been established for the effect of temperature on settling velocity and throughput capacity of a thickener.

Settling for strength and stabilization of web, it avoids putting web's carrying capacity down owing to constructing technics by increasing thickness of web and lessening the stiffener;