Hauv kev ua haujlwm kub siab hauv kev lag luam, kev ua tau zoo ntawm cov ntaub ntawv refractory ncaj qha txiav txim siab qhov ua tau zoo ntawm kev tsim khoom, kev nyab xeeb, thiab kev tswj tus nqi.Cov Cement Qis (LCC)tau tshwm sim los ua ib qho kev daws teeb meem uas hloov pauv qhov kev ua si, qhov sib txawv los ntawm nws cov calcium oxide tsawg (≤3%) thiab tsawg kawg nkaus ntxiv cement (3%-8%), uas muab cov khoom refractory zoo dua piv rau cov castables ib txwm muaj. Nws qhov kev tiv thaiv thermal shock zoo kawg nkaus, kev tiv thaiv slag erosion, thiab lub zog kub siab ua rau nws tseem ceeb heev rau ntau yam lag luam thoob ntiaj teb.
Kev lag luam hlau yog qhov tau txais txiaj ntsig tseem ceeb ntawm cov cement qis, qhov twg nws ua tau zoo hauv qhov chaw kub thiab kub heev. Nws yog siv dav rau cov ntaub thaiv ntawm cov cua sov kho cua sov, cov cua sov cua sov, thiab cov kilns rotary, nrog rau cov ntaub thaiv hluav taws xob thiab cov qhov cub tawg. Rau kev tsim hlau, LCC muab kev tiv thaiv txhim khu kev qha rau cov ladles, tundishes, thiab cov qhov cub tawg, tiv taus xeb los ntawm cov hlau molten thiab cov hlau slag thaum tswj kev ua kom zoo ntawm qhov kub txog li 1800 ℃. Hauv cov hlau tsis yog ferrous, nws yog qhov zoo tagnrho rau cov cua sov tuav txhuas, hloov cov ntxhua khaub ncaws, thiab cov ntaub thaiv electrolytic cell, ua tsaug rau cov khoom ntxiv uas txo cov hlau molten nkag mus.
Kev lag luam cement vam khom ntau rau cov cement qis castable los txhim kho qhov ruaj khov ntawm cov khoom siv thermal tseem ceeb. Nws feem ntau siv rau sab nraub qaum kilneye, wicket npog, thiab sab nraub qaum txias ntawm cov cement rotary kilns, qhov twg nws tiv taus qhov kub thiab txias heev thiab cov ntaub ntawv abrasive, ua rau lub neej ua haujlwm ntawm cov khoom siv ntev dua. Nws qhov porosity qis thiab qhov ceev ceev tiv thaiv kev poob cua sov, txhim kho kev siv hluav taws xob thiab txo cov sijhawm txij nkawm - cov yam tseem ceeb rau cov tuam txhab cement nrhiav kev txiav cov nqi.
Tsis tas li ntawm metallurgy thiab cement, low cement castable ua haujlwm ntau yam hauv petrochemical, fais fab, thiab kev kho pov tseg. Hauv cov nroj tsuag petrochemical, nws kab catalytic cracking reactors thiab high-temperature pipelines, tiv taus tshuaj erosion thiab thermal cycling. Rau kev tsim hluav taws xob, nws yog siv rau hauv boiler combustion chambers, flues, thiab cyclone separators, tiv thaiv kev kub siab thiab flue gas corrosion. Nws kuj ua tau zoo hauv cov khib nyiab incinerators, qhov twg nws tiv taus corrosion los ntawm complex, lom flue gases thiab abrasive tshauv me me.
Cov castable uas tsis tshua muaj cement no muaj ntau yam kev xaiv los ua kom yooj ywm. Muaj ntau hom vibratory los yog self-flowing variants, nws tuaj yeem raug cam, smeared, los yog pumped rau ntawm qhov chaw, hloov kho rau cov duab nyuaj thiab cov chaw nyuaj mus txog yam tsis muaj kev cuam tshuam rau kev ua haujlwm. Nws lub zog kub siab nce ntxiv nrog kev kho cua sov, kov yeej qhov tsis muaj zog ntawm cov castables ib txwm muaj uas poob zog ntawm 800-1200 ℃.
Txawm yog rau cov qhov cub tseem ceeb hauv kev lag luam, kev tuav hlau molten, lossis cov kav dej kub siab, cov cement qis castable muab kev ua haujlwm zoo sib xws, kav ntev. Nws ua ke ntawm kev ruaj khov, kev hloov pauv tau yooj yim, thiab kev siv hluav taws xob ua rau nws yog qhov kev daws teeb meem refractory nyiam rau cov lag luam kub siab niaj hnub. Xaiv LCC kom txo cov nqi kho, txhim kho kev nyab xeeb ua haujlwm, thiab ua tiav cov hom phiaj tsim khoom ruaj khov.
Lub sijhawm tshaj tawm: Lub Ob Hlis-04-2026
