- 28
- Sep
Coke Cub Silica Cib
Coke Cub Silica Cib
Coke cub silica cib yuav tsum yog cov khoom siv ua kua qaub ua los ntawm cov nplai pob zeb, cristobalite thiab me me ntawm cov seem quartz thiab iav theem.
1. Cov ntsiab lus silicon dioxide ntau dua 93%. Qhov tseeb ntom yog 2.38g/cm3. Nws muaj kev tiv thaiv rau acid slag yaig. Siab kub siab zog. Qhov pib kub ntawm qhov muag muag yog 1620 ~ 1670 ℃. Nws yuav tsis deform tom qab siv sijhawm ntev ntawm qhov kub siab. Feem ntau tsis muaj kev hloov pauv siv lead ua siab dua 600 ° C. Qhov kub me me nthuav dav coefficient. Siab kub poob siab ua haujlwm. Hauv qab 600 ℃, daim ntawv siv lead ua hloov pauv ntau dua, qhov ntim hloov pauv ntau, thiab cov cua sov ua haujlwm tsis zoo tuaj. Ntuj silica yog siv los ua raw khoom, thiab tsim nyog tus nqi ntawm cov ntxhia ntxiv los txhawb kev hloov pauv ntawm quartz hauv lub cev ntsuab mus rau hauv phosphorite. Ua haujlwm qeeb ntawm 1350 ~ 1430 ℃ hauv kev txo huab cua.
2. Feem ntau yog siv rau chav tso quav thiab muab faib phab ntsa ntawm chav sib txuas ntawm lub qhov cub coke, lub tshuab rov tsim dua tshiab thiab slag chamber ntawm cov hlau ua rau qhib lub tshuab ua kom sov, lub tshuab ua kom sov, lub tshuab ua kom sov iav, cov hluav taws kub hnyiab cov ntaub ntawv thiab cov khoom siv, thiab lwm yam. Nws kuj tseem siv rau qhov kub thiab txias-qhov chaw ntawm cov cua kub qhov cub tawg thiab kua qaub qhib lub qhov cub tawg rauv.
3. Cov khoom siv ntawm silica cib yog quartzite ua raw khoom, ntxiv me me ntawm cov ntxhia. Thaum raug rho tawm ntawm qhov kub thiab txias, nws cov tshuaj muaj pes tsawg leeg yog tsim los ntawm tridymite, cristobalite thiab iav tsim ntawm qhov kub siab. Nws cov ntsiab lus AiO2 ntau dua 93%. Ntawm cov nplaim hluav taws kub zoo silica, cov ntsiab lus ntawm tridymite yog qhov siab tshaj, suav txog 50% txog 80%; cristobalite yog thib ob, suav rau tsuas yog 10% txog 30%; thiab cov ntsiab lus ntawm quartz thiab iav theem hloov pauv ntawm 5% thiab 15%.
4. Cov khoom siv ntawm silica cib yog ua los ntawm quartzite, ntxiv nrog me me ntawm cov ntxhia pob zeb, thiab raug rho tawm ntawm qhov kub. Nws cov tshuaj muaj pes tsawg leeg yog tridymite, cristobalite thiab glassy tsim ntawm qhov kub thiab txias. Nws cov ntsiab lus SiO2 Siab dua 93%.
5. Silica cib yog cov khoom siv acidic refractory, uas muaj zog tiv taus acidic slag yaig, tab sis thaum nws muaj zog corroded los ntawm alkaline slag, nws yooj yim puas los ntawm oxides xws li Al2O3, thiab muaj kev tiv thaiv zoo rau oxides xws li iCaO, FeO thiab Fe2O3. kev sib deev
6. Qhov loj tshaj qhov tsis zoo ntawm kev thauj khoom yog qhov tsis tshua muaj cua sov poob qis thiab tsis muaj kev cuam tshuam, feem ntau ntawm 1690-1730 ℃, uas txwv nws cov ntawv thov ntau yam.
Silica cib-lub cev khoom
1. Acid-puag tsis kam
Silica cib yog cov khoom siv ua kua qaub uas muaj zog tiv taus acid slag yaig, tab sis thaum lawv muaj zog corroded los ntawm alkaline slag, lawv yooj yim puas los ntawm cov oxides xws li AI2O3, thiab muaj kev tiv thaiv zoo rau oxides xws li CaO, FeO, thiab Fe2O3.
2. Kev nthuav dav
Cov cua sov ua kom sov ntawm silica cib nce nrog qhov nce ntawm kev ua haujlwm kub tsis muaj qhov seem me me. Thaum lub sijhawm ua cov txheej txheem, qhov ntim ntawm silica cib nce nrog qhov nce ntawm qhov kub thiab txias. Hauv txheej txheem qhov cub, qhov nthuav dav tshaj plaws ntawm cov cib silica tshwm sim ntawm 100 thiab 300 ℃, thiab nthuav dav ua ntej 300 ℃ yog li 70% txog 75% ntawm tag nrho kev nthuav dav. Qhov laj thawj yog tias SiO2 muaj plaub daim duab hloov pauv ntawm 117 ℃, 163 ℃, 180 ~ 270 ℃ thiab 573 ℃ hauv cov txheej txheem ci. Ntawm lawv, qhov ntim nthuav tawm los ntawm cristobalite yog qhov loj tshaj ntawm 180 ~ 270 ℃.
3. Deformation kub nyob rau hauv load
Qhov kub hloov pauv siab dua nyob rau hauv load yog qhov zoo ntawm cov cib silica. Nws nyob ze rau qhov chaw melting ntawm tridymite thiab cristobalite, uas yog nruab nrab ntawm 1640 thiab 1680 ° C.
4. Ruaj khov
Qhov loj tshaj qhov tsis txaus ntawm cov cib silica yog cov cua sov tsis tshua muaj kev ruaj ntseg thiab tsis muaj kev cuam tshuam, feem ntau ntawm 1690 txog 1730 ° C, uas txwv lawv cov ntawv thov. Qhov tseem ceeb los txiav txim siab thermal stability ntawm silica cib yog qhov ntom ntom ntom, uas yog ib qho tseem ceeb ntsuas rau txiav txim siab nws cov quartz hloov pauv. Qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntawm silica cib, ua kom ntau dua, thiab qhov me me nthuav dav ntxiv thaum lub sijhawm ua cov txheej txheem.
5. Silica cib-teeb meem xav tau kev saib xyuas
1. Thaum qhov kub ua haujlwm qis dua 600 ~ 700 ℃, qhov ntim ntawm silica cib hloov pauv ntau heev, qhov ua tau zoo ntawm kev tiv thaiv txias sai thiab cua sov tsis zoo, thiab thermal stability tsis zoo. Yog tias lub qhov cub coke tau ua haujlwm ntawm qhov kub no tau ntev, cov masonry yuav tawg yooj yim.
2. Kev Ua Tau Zoo Lub cev ntawm coke cub silica cib:
(1) Lub ntsuas kub ua kom sov siab yog siab. Coke cub silica cib tuaj yeem tiv taus lub zog thauj khoom ntawm lub tsheb thauj khoom ntawm lub ru tsev ntawm lub cub tawg hauv qhov kub thiab txias, thiab tuaj yeem siv sijhawm ntev yam tsis muaj kev hloov pauv;
(2) Kev ua kom muaj cua sov siab. Coke yog tsim los ntawm coking thee hauv chav coking los ntawm kev ua cua sov ntawm phab ntsa ntawm chav sib txuas, yog li cov cib silica siv los tsim cov phab ntsa ntawm chav sib txuas yuav tsum muaj cov cua sov ntau dua. Hauv qhov kub thiab txias ntawm lub qhov cub tawg coke chamber, cov cib silica muaj cov cua sov ntau dua li cov av cib thiab cov av alumina siab. Piv nrog rau qhov cub coke cub zoo li cov cib silica, cov cua sov ua kom sov ntawm cov coke cub silica cib tuaj yeem nce li 10% txog 20%;
(3) Zoo thermal poob siab tsis kam thaum kub. Vim tias kev them nqi ib ntus thiab coking ntawm lub qhov cub coke, qhov kub ntawm silica cib ntawm ob sab ntawm cov phab ntsa txuas hluav taws xob hloov pauv ntau. Qhov ntsuas kub hloov pauv ntawm kev ua haujlwm ib txwm yuav tsis ua rau muaj qhov tawg hnyav thiab tev ntawm cov pob zeb silica, vim hais tias siab dua 600 ℃, qhov cub coke silica cib muaj cov cua sov zoo tiv taus;
(4) ruaj khov ntim ntawm qhov kub. Hauv cov pob zeb silicon nrog kev hloov pauv zoo siv lead ua, cov seem quartz tsis ntau dua 1%, thiab kev nthuav dav thaum cua sov tau tsom mus ua ntej 600C, thiab tom qab ntawd qhov nthuav tawm qeeb qeeb. Thaum lub sijhawm ua haujlwm zoo ntawm lub qhov cub coke, qhov kub tsis poob qis dua 600 ° C, thiab cov masonry yuav tsis hloov pauv ntau, thiab kev ruaj khov thiab nruj ntawm cov masonry tuaj yeem tswj tau ntev.
qauv | BG-94 | BG-95 | BG-96A | BG-96B | |
Tshuaj Muaj Zis% | SIb 2 | ≥94 | ≥95 | ≥96 | ≥96 |
Fe2O3 | ≤1.5 | ≤1.5 | ≤0.8 | ≤0.7 | |
Al2O3+TiO2+R2O | ≤1.0 | ≤0.5 | ≤0.7 | ||
Refractoriness | 1710 | 1710 | 1710 | 1710 | |
Pom Porosity % | ≤22 | ≤21 | ≤21 | ≤21 | |
Tej Ceev g/cm3 | ≥1.8 | ≥1.8 | ≥1.87 | ≥1.8 | |
Muaj tseeb Ceev, g/cm3 | ≤2.38 | ≤2.38 | ≤2.34 | ≤2.34 | |
Txias Crushing Zog Mpa | ≥24.5 | ≥29.4 | ≥35 | ≥35 | |
0.2Mpa Refractoriness Under Load T0.6 ℃ | ≥1630 | ≥1650 | ≥1680 | ≥1680 | |
Hloov Hloov Tawm Mus Ib Txhis Ntawm Kev Ruaj Ntseg (%) 1500 ℃ X2h |
0 ~+0.3 hli | 0 ~+0.3 hli | 0 ~+0.3 hli | 0 ~+0.3 hli | |
20-1000 ℃ Thermal Expansion 10-6/℃ | 1.25 | 1.25 | 1.25 | 1.25 | |
Kev Ua Haujlwm Kub (W/MK) 1000 ℃ | 1.74 | 1.74 | 1.44 | 1.44 |