Hoffman kiln yokudubula nokomisa izitini zobumba

Iziko lika-Hoffmann libhekisela kuhhavini oqhubekayo onesakhiwo somhubhe we-annular, ohlukaniswe ngokushisa kuqala, ukubopha, ukupholisa ngobude bomhubhe. Uma udubula, umzimba oluhlaza ugxilwe engxenyeni eyodwa, engeza uphethiloli ngokulandelana ezindaweni ezihlukahlukene zomhubhe, ukuze ilangabi liqhubekele phambili, futhi umzimba udlule ngokulandelana ngezigaba ezintathu. Ukusebenza kahle kokushisa kuphezulu, kodwa izimo zokusebenza zimbi, ezisetshenziselwa ukudubula izitini, ama-watts, ama-ceramics ama-coarse kanye ne-clay refractories.