Pakatikati pa ng'anjo ya laimu yozungulira imakhala ndi chipolopolo chachitali cha cylindrical chopendekera pang'ono. Wopangidwa ndi-chitsulo chapamwamba kwambiri, chigoba cha ng'anjocho chimakhala ndi-zopanda kutentha kwambiri pakhoma lake lamkati, zomwe zimathandizidwa ndi zomangira mawilo, ndipo zimayendetsedwa kuti zizizungulira pang'onopang'ono ndi makina otumizira mauthenga (ndi liwiro la 1–4 r/min). Dongosolo lathunthu nthawi zambiri limakhala ndi zida zothandizira kuphatikiza chotenthetsera, chozizira, chowotchera, ndi chotolera fumbi, kupanga njira yophatikizira yopitilira calcining.
Mfundo yake yogwirira ntchito imatsatira mfundo zazikuluzikulu za kusinthana kwa kutentha kofanana ndi kuwerengera kwa gradient. Njirayi ikhoza kugawidwa m'magawo atatu ofunika:
1.Kudyetsa ndi Preheating Stage
Zopangira za miyala yamchere zimalowa mu preheater kudzera pa chipangizo chodyera ndipo zimayenda pang'onopang'ono chakumapeto kwapansi (ng'anjo yamoto) pansi pa mphamvu yokoka pomwe ng'anjo imazungulira. Panthawiyi, -gasi wotentha kwambiri wopangidwa ndi kuyaka kwamafuta (malasha ophwanyidwa, gasi wachilengedwe, ndi zina zotero) obwera kuchokera mu ng'anjo yowotchera amayenderera kuchokera mung'anjo kupita ku ng'anjo. Panthawi imeneyi, kutentha koyamba kumachitika pakati pa gasi ndi kauntala{4}}zinthu zosuntha, zomwe zimakweza pang'onopang'ono kutentha kuti chinyezi chisamasefukire ndikukonzekera kutentha kwa carbonate ndi kuwola.
2.Kuwerengera ndi Kuwola Gawo
Zinthu zikalowa-pakatikati mwa ng'anjo yotentha kwambiri (kutentha mpaka 1200–1400 °C), zimalumikizana ndi-gasi wotentha kwambiri kwinaku zikugudubuzika ndi kasinthasintha wa ng'anjoyo. Limestone (CaCO₃) amawola kwambiri kuti apange quicklime (CaO) ndi carbon dioxide (CO₂). Kugwa mosalekeza kumateteza kutentha kofanana, kuteteza -kuchulutsa kapena kupitirira{7}}kuchulutsa m'dera lanu{8}}ichi ndi chifukwa chachikulu cha kukhazikika kwa malonda mu ng'anjo zozungulira.
3.Cooling ndi Discharging Stage
Quicklime wotenthedwayo amapitilira kulowera kung'anjo ndikulowa m'malo ozizira ofananirako, momwe amasinthira kutentha ndi kuwombedwa-mu mpweya wozizira. The quicklime imakhazikika ku kutentha kozungulira ndikutulutsidwa, pamene mpweya wozizira, utatha kutentha, umakhala mpweya wotentha; gawo lina likhoza kugwiritsidwanso ntchito ngati kuyaka-kuchirikiza mpweya kubwerera ku ng'anjo kuti kutentha kuyambirenso. Pomaliza,-gasi wotentha kwambiri amatulutsidwa m'mbale, ndikuchotsa fumbi, kuchotsa sulfurization, ndi denitrification kuti akwaniritse zofunikira zachilengedwe asanatulutse.
