Ib lub txiv qaub kiln yog siv los tsim cov kua qaub nrawm los ntawm calcination ntawm limestone(calcium carbonate). Cov tshuaj tiv thaiv no tshwm sim ntawm 900 ° C tab sis qhov kub ntawm ib ncig ntawm 1000 ° C feem ntau yog siv los ua kom cov tshuaj tiv thaiv ua ntej sai. 2 Quicklime tau siv los ua plaster thiab mortar rau kev tsim kho.
Cov txiv qaub qub siv rau dab tsi?
Ib lub txiv qaub kiln yog cov qauv siv los tsim cov txiv qaub (calcium oxide) los ntawm kev hlawv calcium carbonate ntawm qhov kub siab tshaj 900 ° C. Cov calcium carbonate hlawv (los yog 'calcined') feem ntau yog limestone lossis chalk, tab sis qee zaus lwm cov ntaub ntawv xws li oyster lossis qe plhaub tau siv.
txiv qaub siv li cas rau xyoo 1800?
1800 A. D. Txiv qaub tau dav siv thoob plaws Tebchaws Europe raws li a plaster thiab xim décor, thiab nws tau ua haujlwm tseem ceeb hauv tsev rau tsev.
Ob txiv qaub qhov cub ua haujlwm li cas?
Txoj dome-zoo li txheej txheej ntawm limestone thiab ntoo lossis thee tau tsim nyob rau hauv kiln ntawm grate bar hla qhov muag. Thaum thauj khoom tiav, lub qhov cub tau muab tso rau hauv qab, thiab qhov hluav taws kub maj mam kis mus rau sab saud los ntawm tus nqi. Thaum hlawv, cov txiv qaub tau txias thiab raked tawm hauv lub hauv paus.
lub cub tawg siv rau dab tsi?
Kiln, qhov cub rau tua, ziab, ci, tawv, lossis hlawv cov khoom, tshwj xeeb tshaj yog cov khoom av nplaum tab sis thaum chiv keeb kuj tseem nplej thiab zaub mov. Lub cib kiln yog ib qho tseem ceeb ua ntej hauvthev naus laus zis thaum ub vim nws muab lub cib kom muaj zog dua li cov khoom siv hnub ci thaum ub.
