Cov Cib Refractory rau Cement Rotary Kiln: Hom thiab Daim Ntawv Thov

Cov chaw ua cua sov cement rotaryyog cov khoom siv tseem ceeb hauv kev tsim cov cement, ua haujlwm nyob rau hauv cov xwm txheej hnyav - qhov kub txog li 1450 ° C, kev puas tsuaj loj heev los ntawm cov xov xwm alkaline thiab clinker, thiab kev hnav tsis tu ncua. Kev xaiv cov cib refractory zoo yog qhov tseem ceeb rau kev ua haujlwm ruaj khov, txuas ntxiv lub neej ua haujlwm ntawm lub cub tawg, thiab txo cov nqi txij nkawm. Hauv qab no yog cov hom cib refractory tseem ceeb uas tsim rau cov cub tawg cement rotary, txhua tus tsim rau thaj chaw ua haujlwm tshwj xeeb.

Cov Cib Alumina Siabyog cov cib refractory siv dav tshaj plaws hauv cov cement rotary kilns. Nrog cov alumina ntsiab lus ntawm 48% txog 75%, lawv khav txog kev tiv taus kub siab zoo heev, kev ruaj khov thermal shock zoo, thiab kev tiv taus hnav zoo. Lawv feem ntau siv rau hauv cov cheeb tsam tsis tshua muaj zog xws li lub qhov nkag ntawm lub kiln, preheater, thiab decomposition furnace, qhov twg kub ntawm 800 ° C txog 1200 ° C. Lawv qhov porosity qis tiv thaiv cov pa roj corrosive nkag mus, ua rau lawv zoo tagnrho rau cov cheeb tsam uas muaj kev puas tsuaj tshuaj nruab nrab.

Magnesia-Alumina Spinel Cibyog qhov tseem ceeb rau thaj chaw hlawv ntawm lub qhov cub, qhov twg qhov kub ncav cuag 1350 ° C txog 1450 ° C. Ua los ntawm magnesium oxide thiab alumina, lawv muaj qhov tiv taus thermal shock zoo dua thiab tuaj yeem tsim ib txheej tiv thaiv thaum cuam tshuam nrog clinker, zoo tiv taus kev yaig ntawm molten clinker. Piv nrog cov cib magnesia-chrome, lawv muaj kev tiv thaiv spalling zoo dua, ua rau lawv yog qhov kev xaiv ruaj khov dua rau thaj chaw kub siab.

Cov Cib Magnesia-Chrome Uas Sib Txuas Ncaj QhaUa tau zoo heev hauv kev tiv thaiv kev xeb tshuaj lom neeg. Ua los ntawm cov magnesite zoo thiab chromite, calcined ntawm 1750-1850 ° C, lawv tsim nyog rau thaj chaw kub hnyiab thiab thaj chaw hloov pauv, qhov twg alkaline thiab sulfate erosion hnyav. Lawv muab qhov kub siab rau kev thauj khoom thiab lub zog zoo, ua kom ruaj khov mus sij hawm ntev hauv qhov chaw nyuaj.

Cov Cib Uas Tiv Thaiv Alkalitau tsim los rau cov kav dej cua thib peb thiab cov cua daj cua dub cais, qhov twg alkali vapor erosion pom tseeb. Nrog 25% -30% alumina thiab ntau dua 65% silica, lawv tsim cov txheej glaze viscosity siab los thaiv alkali nkag mus, tiv thaiv kev tawg thiab spalling.

Kev xaiv cov cib refractory zoo raws li thaj chaw kiln cuam tshuam ncaj qha rau kev ua haujlwm zoo thiab tus nqi. Peb cov cib refractory ua tau zoo ua tau raws li cov qauv kev lag luam, nrog rau cov kev daws teeb meem tshwj xeeb rau ntau hom kiln. Tiv tauj peb hnub no kom tau txais cov khoom refractory txhim khu kev qha uas txo lub sijhawm tsis ua haujlwm thiab txhawb koj cov cement tsim khoom zoo.