Lub rotary kiln txheej txheem cov khib nyiab pov tseg. Cov khoom siv refractory nyob rau hauv lub teb kiln yuav raug puas tsuaj los ntawm qhov kub siab ntawm cov pa roj flue ntawm cov khoom pov tseg thiab cov slag molten ib nrab, yog li tsim nyog xaiv cov khoom siv refractory tuaj yeem ua rau lub qhov cub tawg tau zoo.
Lub hom phiaj ntawm cov khoom siv refractory siv nyob rau hauv lub roasting ntawm lub teb kiln yog los tiv thaiv lub kiln carcass los ntawm kev cuam tshuam ntawm cov khoom kub nyob rau hauv lub kiln (cov khoom kub yog feem ntau nyob ib ncig ntawm 1450 degree) los yog cov nplaim taws (1600-1700 degree); txo cov hluav taws xob hluav taws xob thiab hluav taws xob hluav taws xob poob ntawm cov khoom siv hluav taws xob rotary. Lub voj voog ua haujlwm ntawm ntau yam cement rotary kilns yog txiav txim siab los ntawm qhov zoo ntawm cov khoom siv refractory siv nyob rau hauv lub kiln, tshwj xeeb tshaj yog cov siv nyob rau hauv lub firing cheeb tsam ntawm lub teb kiln (xws li Liboer kiln, ncua preheating kiln thiab decomposition kiln sab nraum lub kiln) thiab thaj chaw kub siab ntawm cov ncej kiln. Qhov zoo ntawm cov khoom hnav-resistant. Txhawm rau kom ntseeg tau tias lub sijhawm ua haujlwm ruaj ntseg ntawm lub kiln, txo lub sijhawm tu lub sijhawm tsis tau npaj ntawm lub kiln, thiab txhim kho qhov kev ua haujlwm ntawm qhov cub, nws yog ib qho tsim nyog yuav tsum tau kawm txog qhov yuav tsum tau ua rau cov khoom siv refractory siv hauv qhov cub thiab kev ua haujlwm. thiab zoo ntawm cov ntaub ntawv refractory.
Txhim kho qhov zoo ntawm lub qhov cub hluav taws xob thiab xaiv lub qhov cub refractory kom pom cov ntsiab lus no:
01 Resistance rau kub kub
Nws yog ib qho tseem ceeb uas yuav tau xaiv cov ntaub ntawv resilient refractory rau lub rotary kiln sab hauv phab ntsa.elevated kub. Thaum cuam tshuam nrog cov khib nyiab uas tsim kev puas tsuaj, qhov kub-kub combustion yog qhov tsim nyog yog tias cov phab ntsa sab hauv tsis zoo siab kub tsis kam ua rau cov khoom siv lub neej ua haujlwm thiab muaj kev cuam tshuam tsis zoo rau nws li cas. Feem ntau hais lus, cov khib nyiab phom sij raug kub hnyiab ntawm qhov kub ntawm li 800 degree .Lub qhov cub tawg feem ntau ua haujlwm ntawm 850 degree thiab 1000 degree .
02 Lub zog zoo thiab hnav tsis kam
Lub zog ntawm rotary kiln refractories hais txog lawv lub zog txhua yam. Cov khib nyiab pov tseg feem ntau muaj cov duab sib txawv thiab qhov ntau thiab tsawg, thiab lawv qhov hardness yog txawv. Yog tias lub zog thiab hnav tsis kam ntawm cov khoom siv tsis zoo, nws yooj yim rau kev puas tsuaj los ntawm kev cuam tshuam thiab puas thaum cov khib nyiab nkag mus rau hauv qhov cub thiab yog incinerated, tig thiab poob. Tsis tas li ntawd, cov khoom txaus ntshai yuav nthuav dav thaum lub sij hawm combustion, thiab lub plhaub ntawm lub tshuab hluav taws xob yuav ua rau muaj kev ntxhov siab ntawm cov khoom siv refractory, uas inevitably xav tau cov khoom kom muaj zog zoo.
03 Zoo ntim stability
Tag nrho cov phab ntsa sab hauv ntawm lub qhov cub hluav taws xob yog ruaj khov nrog cov khoom siv refractory. Lub tshuab hluav taws xob teb muaj kev ntxhov siab los ntawm kev hloov pauv kub, kev ntxhov siab ntawm cov tshuab hluav taws xob los ntawm kev sib tw ntawm lub tog raj kheej, thiab kev ntxhov siab ntawm cov ntaub ntawv thaum nws ua haujlwm ib txwm. Cov txheej txheem hloov kub yuav Lub ntim ntawm cov khoom refractory txo qis vim yog tus neeg sawv cev nthuav dav. Extrusion los yog qhov sib txawv ntawm cov khoom siv refractory, cov khoom siv refractory, thiab lub tog raj kheej yuav tshwm sim thaum lub ntim ruaj khov ntawm cov khoom siv refractory tsis txaus los yog lub ntim hloov pauv hauv qhov kub sib txawv, ua rau cov khoom tawg lossis poob.
04 Zoo corrosion kuj
Ib tug loj npaum li cas ntawm cov roj corrosive thiab slag yog tsim thaum lub sij hawm incineration ntawm cov khoom pov tseg, uas yuav nkag mus rau sab hauv ntawm cov khoom los ntawm pores thiab micro-cracks nyob rau saum npoo ntawm cov khoom, thiab reacts nrog cov khoom matrix ua rau embrittlement thiab tev ntawm. cov khoom. Xaiv cov ntaub ntawv uas muaj kev tiv thaiv corrosion zoo tuaj yeem txo cov khoom tsis zoo rau qee yam Kev nkag mus thiab cov tshuaj tiv thaiv, ua kom ntev lub neej kev pab cuam tag nrho ntawm lub tshuab ua teb.
