Feem ntau, siab aluminium bricks yuav tsum tsis txhob siv nyob rau hauv lub alkaline cua rauv. Vim hais tias cov alkaline thiab acidic nruab nrab kuj muaj chlorine, nws yuav nkag mus rau hauv lub sib sib zog nqus khaubncaws sab nraud povtseg ntawm siab alumina cib nyob rau hauv daim ntawv ntawm gradient, uas yuav ua rau lub refractory cib yuav vau.
Lub siab aluminium cib tom qab kev yaig ntawm cov huab cua alkaline yog kab rov tav tawg. Kev yaig yog tsim los ntawm cov roj grey, hlawv roj, thiab cov khoom alkaline hauv lwm cov khoom. Cov khoom no cuam tshuam nrog lub iav theem thiab mullite pob zeb nyob rau hauv lub siab aluminium cib.
High-aluminium bricks uas corroded alkaline yuav tshwm rau saum npoo. Hlawv cov roj sib txuas kuj tseem yuav tsim kom muaj nitrate, sedimentation nyob rau hauv qhov sib txawv ntawm siab aluminium cib; cov tshuaj tiv thaiv ntawm cov glaciers generated yuav tsim ib theem tshiab complex. Thaum cov dej tsis muaj hmoo nitriles nyob rau hauv kev sib cuag nrog cov vagram generated, cov tshuaj tiv thaiv-vaporization yuav tshwm sim, ua rau lub siab aluminium cib tawg los yog poob. Tsis tas li ntawd, thermal corrosion kuj tseem hnyav heev rau refractory cib corrosion. Vim yog kev yaig ntawm Fang quartz, Skywine, thiab quartz siv lead ua silica. Kev siv cov vuas hluav taws yuav hnyav dua li cov noodles txias.
Kev puas tsuaj rau cov cib ntawm silicon dioxide kuj hnyav heev. Cov silica yog yaj nyob rau hauv siab aluminium cib-kua theem. Lub melting hmoov nitrate thiab qis-melting point silicon pob zeb tsim ib tug loj npaum li cas ntawm cov kua theem. Qhov siab dua cov ntsiab lus silica hauv cib, qhov ntau dua cov kua theem. Cov theem ua kua ntau dhau yuav deform siab aluminium cib. Silicon silicon kuj puas rau cib. Vim tias cov silica dawb tau noj, Mo Lai Shi theem yuav raug eroded. Tom qab cov lus teb ntawm lickle nitrate thiab mullite pob zeb tuaj yeem ua rau muaj kev puas tsuaj loj ntawm lub siab aluminium cib.
High aluminium bricks muaj kev tiv thaiv zoo rau kev kub siab thiab puas. Lawv tau dav siv nyob rau hauv ob sab phlu ntawm ntau yam muaj furnaces, xws li blast furnaces, cua kub furnaces, thiab teb kilns. Txawm li cas los xij, nyob rau hauv alkaline cua muaj cua sov, kev siv cov alumina cib siab yog txwv.
Cov khoom siv tshuaj lom neeg ntawm siab alumina cib ua rau lawv tiv thaiv cov teebmeem ntawm acidic ib puag ncig. Txawm li cas los xij, nyob rau hauv ib qho chaw muaj alkaline heev, xws li cov cement kilns lossis iav rauv, siab aluminium cib yuav hnov mob nrog alkali hlau oxides, ua rau cov cib tawg thiab tawg. Cov tshuaj tiv thaiv ntawm Al2O3 cib thiab cov alkali hlau oxides feem ntau ua rau tsim cov alkali aluminosilicate gel, uas muaj cov ntsiab lus melting tsawg thiab tuaj yeem yooj yim ntws los ntawm cov kab nrib pleb.
Yuav kom daws tau qhov teeb meem no, ob peb lub tswv yim tau siv los txhim kho qhov kev tiv thaiv ntawm siab aluminium bricks rau alkaline ib puag ncig. Ib qho kev daws teeb meem yog ntxiv magnesia lossis spinel rau lub siab alumina cib. Cov magnesia los yog spinel yuav hnov mob nrog alkali hlau oxides los tsim cov txheej txheem spinel ruaj khov, uas tuaj yeem txhim kho qhov tsis kam ntawm Al2O3 cib kom tawg los ntawm alkali cov tshuaj tiv thaiv. Lwm qhov kev daws teeb meem yog siv cov txheej tiv thaiv ntawm qhov chaw siab ntawm alumina cib kom tiv thaiv kev sib cuag ncaj qha nrog alkaline ib puag ncig.
Nyob rau hauv cov ntsiab lus, siab aluminium bricks muaj kev txwv tsis pub siv nyob rau hauv alkaline cua muaj cua sov hauv ob sab phlu. Txhawm rau txhim kho qhov tsis kam ntawm Al2O3 cib hauv qhov chaw alkaline, nws yog ib qho tsim nyog yuav tsum tau ntxiv qee cov zaub mov lossis cov txheej txheem kom tsis txhob muaj teeb meem cuam tshuam nrog alkali hlau oxides. Nws yog ib qho tseem ceeb uas yuav tau xaiv cov khoom tsim nyog rau cov khoom siv hluav taws xob kom txo tau cov kev phom sij thiab txuag nqi.
Post lub sij hawm: May-19-2023
