Ukuzungeza imiphetho yensimbi inqubo yokususa imiphetho ebukhali noma eqhumayo ezingxenyeni zensimbi ukuze kudalwe indawo ebushelelezi nephephile. Ama-slag grinder ayimishini eqinile egaya izingxenye zensimbi njengoba zidluliselwa kuyo, isusa yonke i-slag esindayo ngokushesha nangendlela ephumelelayo. Le mishini isebenzisa uchungechunge lwamabhande okugaya namabhulashi ukuze idabule kalula ngisho nasezinqwabeni zendle ezisindayo kakhulu.
