Lub txiv qaub kiln yog ib puag ncig tus phooj ywg thiab lub zog- txuag cov khoom siv hluav taws xob, feem ntau yog siv los decompose limestone rau hauv calcium oxide. Nws yog dav siv hauv kev lag luam xws li hlau, calcium carbide, alumina, thiab cov ntaub ntawv refractory. Kev siv tshuab tshuab thiab tshuab siv tshuab, nws tuaj yeem siv cov khoom siv khib nyiab xws li coke cub roj thiab blast furnace gas li roj, ua kom muaj zog rov ua dua tshiab thiab txo cov pa phem.
Cov txiv qaub kilns tau muab faib los ntawm hom roj rau hauv co- hluav taws kub kilns (coke / thee) thiab roj- hluav taws kub kilns (coal gas/natural gas), thiab los ntawm hom kiln mus rau hauv ntsug kilns thiab rotary kilns. Cov txheej txheem tseem ceeb suav nrog kev decomposing calcium carbonate ntawm qhov kub ntawm 850-1200 degree, thiab yog nruab nrog lub tshuab tswj tsis siv neeg rau kev ua haujlwm zoo. Cov qauv tseem ceeb suav nrog lub cev qhov cub, cov khoom faib khoom, thiab kev tshem tawm plua plav. Cov cuab yeej tshem tawm plua plav tau zoo kho cov tshuaj sulfur-muaj thiab plua plav flue gas, ua tau raws li cov qauv emission ib puag ncig. Cov cuab yeej siv nruj heev rau cov khoom siv raw; calcium carbonate cov ntsiab lus ntawm limestone yuav tsum siab tshaj 97%.
