Feem ntau, thaj chaw ua haujlwm ntawm lub qhov cub hluav taws xob (nrog rau thaj chaw ua ntej cua sov ntawm lub qhov cub thiab qhov chaw txias ntawm lub taub hau kiln) tau muab faib ua cov pawg hauv qab no raws li qhov ntsuas kub ntawm cov khoom hauv cov cement kiln: drying zone, preheating zone, decomposition zone, exothermic reaction zone, and firing zone. Yog li, kuv yuav xaiv li casrefractory bricksrau cov chaw ua haujlwm no?
① Cov kev xav tau rau qhov chaw nres nkoj ntawm qhov cub hluav taws xob thiab qhov chaw txias txias: Cov kab hluav taws xob refractory nyob rau hauv cov cheeb tsam no raug rau cov neeg siv khoom hnyav thiab cov tshuaj corrosion vim muaj kev sib xyaw ua ke ntawm siab - kub clinker, huab cua theem nrab, thiab siab - kub kub. Yog li ntawd, lawv yuav tsum muaj kev hnav zoo heev, slag tsis kam, thiab thermal shock kuj. Cov txheej txheem xaiv: Rau qhov chaw txias, Qib I siab- alumina cib (nrog rau Al₂O₃ cov ntsiab lus ntawm 65%-75%), thermal shock-resistantsiab alumina cib, spinel bricks, chrome-magnesia bricks, thiab phosphate cib feem ntau yog siv. Rau qhov chaw nres nkoj tawm, siab alumina refractory bricks, refractory pob zeb (nrog corundum raws li cov aggregate), thiab silicon carbide cib feem ntau yog siv.
② Cov kev xav tau rau Rotary Kiln Firing Zone: Lub refractory hauv ob sab phlu nyob rau hauv lub teb kiln firing cheeb tsam yog feem ntau raug rau siab - kub poob siab thiab tshuaj corrosion (alkaline corrosion). Yog li ntawd, cov ntaub ntawv refractory nrog txaus refractoriness thiab tsis kam mus rau siab - kub hauv ob sab phlu yuav tsum tau. Magnesia bricks thiab chrome-magnesia bricks raug pom zoo.
③ Cov Kev Xav Tau rau Rotary Kiln Transition Zone (Exothermic Reaction Zone): Lub qhov cub hauv cheeb tsam no muaj kev sib cuam tshuam hauv ob sab phlu, tsis tshua muaj kub hloov pauv, kub nruas kub, thiab tshuaj lom neeg corrosion. Yog li ntawd, cov ntaub ntawv refractory uas tuaj yeem tiv taus siab - qhov kub thiab txias, muaj qhov siab siab - qhov kub thiab txias flexural zog, thiab yuav tsum muaj cov qauv qis elastic. Cov ntaub ntawv pom zoo suav nrog siab -alumina cib ua los ntawm corundum (50%-80% Al₂O₃ cov ntsiab lus) thiab bauxite, ncaj qha sib txuas chrome magnesia refractory cib, zoo tib yam chrome-magnesia cib, thiab spinel cib.
④ Cov Kev Xav Tau rau Preheater thiab Calciner: Cov khoom siv refractory nrog siab -kub tsis kam thiab thermal rwb thaiv tsev kev ua tau zoo raug pom zoo. Cov cua daj cua dub nyob rau theem siab, qhov kub thiab txias, tuaj yeem ncaj qha siv castables (refractory pob zeb). Cov theem qis ntawm preheater, calciner, thiab cov kav dej sib txuas tuaj yeem tsim nrog alkali-tiv taus thiab hnav- tiv taus av nplaum cib, nrog cov txheej txheem rwb thaiv tsev. Lub ru tsev yuav tsum tau tsim nrog refractory cib, backed los ntawm slag wool. Castables kuj tseem siv tau. Lub luj tshib yuav tsum tau nrum nrog castables. Nthuav semi-silica av nplaum cib tuaj yeem siv rau hauv thaj chaw xws li lub qhov cub tail riser los tiv thaiv alkali corrosion.
⑤ Cement clinker txias system. Cov ntaub ntawv refractory siv nyob rau hauv grate coolers muaj xws li refractory firebricks, hnav castable bricks, insulating bricks, thiab insulating panels. Pa chrome-magnesia cib los yog siab-purity siab-alumina cib tuaj yeem siv rau hauv qhov kub-qhov kub thiab txias ntawm lub caj pas. Cov av nplaum tuaj yeem siv rau hauv qhov nruab nrab - thiab qis - qhov kub thiab txias.
