Hoffman kiln no ke kī ʻana a me ka hoʻomaloʻo ʻana i nā pōhaku lepo

ʻO ka kiln Hoffmann e pili ana i kahi kiln mau me kahi annular tunnel structure, i māhele ʻia i ka preheating, ka hoʻopaʻa ʻana, ka hoʻoluʻu ma ka lōʻihi o ka tunnel. I ke kī ʻana, hoʻopaʻa ʻia ke kino ʻōmaʻomaʻo i hoʻokahi ʻāpana, e hoʻohui pū i ka wahie i nā wahi like ʻole o ka tunnel, no laila e neʻe mau ka lapalapa i mua, a hele pū ke kino i ʻekolu pae. He kiʻekiʻe ka maikaʻi o ka wela, akā maikaʻi ʻole nā ​​kūlana hana, hoʻohana ʻia no ka puhi ʻana i nā pōhaku lepo, watts, coarse ceramics a me nā refractory pālolo.