Alumina silica cib-tseem hu ua alumina- silicate cib,hluav taws av nplaum cib, los yog aluminium silicate refractory- yog ib qho ntawm cov khoom siv dav siv hauv cov cement kilns thiab cua kub ducts. Nws cov koob meej tsis yog qhov yuam kev. Nws tshwm sim los ntawm qhov sib npaug thiab ua tau zoo ntawm tus nqi, thermal stability, mechanical zog, alkali tsis kam, thiab installation yooj. Rau cov neeg tsim khoom cement ntsib siab - kub caij tsheb kauj vab, abrasion, alkali- plua plav plua plav, thiab kev txwv nyiaj txiag, alumina silicate cib muab kev cia siab thiab nqi- siv tau zoo.
Topower muab cov kev ntsuam xyuas ua tiav ntawm yuav ua li cas alumina silica firebrick ua tiav qhov sib npaug thiab vim li cas nws tseem yog ib qho ntawm cov kev xaiv refractory zoo tshaj plaws rau preheaters, coolers, kub moj tej tawg ducts, hloov chaw, thiab cov cuab yeej pab nyob rau hauv niaj hnub cement nroj tsuag.
1. Dab tsi yog Alumina Silica Cib thiab Vim Li Cas Thiaj Siv Tau?
Alumina silica hluav taws cib yog cov khoom lag luam refractory tsim los ntawm Al₂O₃ thiab SiO₂, feem ntau poob rau hauv cov ntsiab lus alumina ntawm 42-55%. Hom cib no yog tsim los muab kev ua haujlwm zoo hauv: cement kilns
cua kub ducts
kub exchangers
tertiary cua ducts
rotary kiln preheater systems
cov chaw txias dua raug puas tsuaj
calciner thiab cyclone separators
Kev sib xyaw ua ke ntawm cov av nplaum clinker, siab -alumina raw cov ntaub ntawv, silica, thiab cov txheej txheem sib txuas ua rau cov khoom siv tiv thaiv thermal cycling, tshuaj tua kab mob, thiab kev puas tsuaj rau txhua yam - tej yam kev mob tshwm sim hauv cov nroj tsuag cement.
2. Tus Nqi-Kev Ua Haujlwm Zoo ntawm Alumina Silica Brick
Qhov laj thawj tseem ceeb ntawm cov cement factories xaiv alumina silicate cib yog nws lub peev xwm los muab ** txaus siab rau kev pab cuam lub neej ntawm tus nqi sib tw **. Thaum cov refractories siab heev zoo li spinel cib, magnesia-chrome cib, los yog siab -alumina bricks (75-85%) yuav muab superior corrosion kuj, lawv cov nqi yog ntau dua.
Key Performance Advantages
(1) Zoo heev Thermal Shock Resistance
Cement kilns, preheaters, thiab cua kub ducts muaj kev hloov pauv kub dua. Alumina silica refractory cib absorbs thermal expansion thiab tiv thaiv spalling vim:
ruaj khov alumina-silica crystalline theem
optimized porosity
tswj thermal expansion coefficient
Qhov no ua rau nws muaj kev ntseeg siab heev nyob rau hauv ducting systems uas ceev ceev cua txias los yog plua plav tsim- ua rau thermal instability.
(2) Zoo Alkali Resistance rau Cement Ib puag ncig
Alkali nres yog ib qho kev txhawj xeeb loj hauv cement kiln operations.This cib muaj:
tiv taus alkali vapors
tiv thaiv clinker plua plav tawm tsam
ruaj khov nyob rau hauv siab -silica ib puag ncig
Nws cov ntsiab lus alumina nruab nrab muab thaj tsam tsis nyob nruab nrab ntawm fireclay cib (pheej yig dua tab sis tsis tshua muaj zog) thiab siab -alumina cib (muaj zog dua tab sis kim).
(3) Abrasion Resistance rau plua plav-Zoo nplua nuj
Cov cua kub cua kub thiab lub tshuab cua txias yog hnyav hnyav nrog cov plua plav uas ua rau muaj kev puas tsuaj tas mus li. Alumina silica hluav taws cib lub microstructure tso cai rau nws tiv taus:
high gas tshaj tawm
clinker particle yaig
thermal-kev nyuaj siab
Cov cuab yeej no txuas ntxiv lub neej hauv cov kab hluav taws xob preheater thiab cov pa cua.
3. Kev siv tseem ceeb ntawm Alumina Silica Cib hauv Cement Cog
1. Preheater System
Qhov zoo tshaj plaws rau: phab ntsa cyclone / riser ducts / gas tis cheeb tsam.Cov cheeb tsam no yuav tsum tau thermal shock tsis kam ntau tshaj qhov tsis zoo corrosion, ua alumina silica firebrick qhov zoo tshaj plaws haum.
2. Cov Cuab Yeej Kub Kub & Cov Cua Txias Tertiary
Cov cua kub ducts hloov cov roj kub ntawm 600-1100 degree. Alumina silicate brick provides: stability under rapid air temperature fluctuations,resistance to dust abrasion, low risk of thermal cracking.Its balance of density and insulating properties reduces heat loss and energy consumption.
3. Kiln Inlet thiab Transition Zones
Alumina silicate cib ua tau zoo nyob qhov twg: clinker plua plav muaj ntau, qhov kub thiab txias ntawm 900-1200 degree, kev siv tshuab yaig yog nruab nrab.
Qhov no txo qhov kev xav tau ntawm cov khoom siv refractory kim dua.
4. Cov chaw txias txias thiab cov cuab yeej pabcuam
Cov no muaj xws li: cov qhov ntswg qhov ntswg / ducts thiab dampers / cua nkag chav / cua sov rov qab units.
Alumina silica firebrick yog xaiv rau nws tus nqi pheej yig + txhim khu kev qha tshav kub.
4. Dab tsi txiav txim siab qhov zoo ntawm Alumina Silica Brick?
(1) Alumina Cov ntsiab lus thiab Theem Distribution
Ntau dua alumina nce: refractoriness, abrasion kuj; ua hauj lwm rau slag thiab clinker.Cov ntaub ntawv cement duct siv cib nrog Al₂O₃ 45-55%.
(2) Qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom
Lub qhov dej-tsim alumina silica refractory cib tuav: tsawg porosity (<22%),good compressive strength;stable thermal conductivity.
Txoj cai porosity txhim kho thermal shock kuj tsis ua rau cov qauv tsis muaj zog.
(3) Controlled impurities (Fe₂O₃, CaO)
Tsawg impurities tiv thaiv kev cuam tshuam nrog alkaline plua plav, txo qhov kev pheej hmoo ntawm: cib nthuav dav, tawg, ua tsis tiav ntxov
(4) Qhov tseeb thiab cov duab muaj
Cov nroj tsuag cement feem ntau xav tau: cov cib tseem ceeb, arch bricks, tapered duab, kev cai refractory blocks.High dimensional raug ua kom yooj yim installation thiab ntev kev pab cuam lub neej.
Alumina silica cib ua tau zoo sib npaug kev lag luam, kev ua haujlwm ntev, thiab kev ua haujlwm thermal, ua rau nws nyiam cov ntaub ntawv refractory rau ntau ntu ntawm cov cement kilns thiab cua kub ducts. Nws kev sib xyaw ua ke ntawm thermal shock resistance, alkali stability, abrasion durability, thiab tsis tshua muaj nqi installation ua rau cov cement nroj tsuag kom ua tiav lub neej kev sib tw ntev dua thiab txo cov nqi txij nkawm yam tsis muaj kev ntseeg siab.
Rau cov pab pawg engineering npaj kev hloov kho refractory lossis kev kaw haujlwm, xaiv cov qib alumina silicate cib uas tsim nyog yog qhov tseem ceeb rau kev ua kom zoo dua - lub sij hawm tus nqi thiab qhov cub ua haujlwm.
