- 28
- Sep
Coke Foornada Silica Brick
Coke Foornada Silica Brick
Lebenkii silica foornada Coke waa inay ahaadaan agab diidaya aashitada oo ka kooban dhagaxa miisaanka, cristobalite iyo qadar yar oo quartz haraaga ah iyo wejiga galaaska.
1. Maadada Silicon dioxide waxay ka badan tahay 93%. Cufnaanta dhabta ah waa 2.38g/cm3. Waxay leedahay iska caabin nabaad -guurka aashitada. Xoog heerkulka sare sare. Heerkulka bilowga ah ee jilcinta culayska waa 1620 ~ 1670 ℃. Ma doorsoomi doono ka dib isticmaalka muddada dheer ee heerkulka sare. Guud ahaan ma jirto beddel kristal oo ka sarreeya 600 ° C. Isuduwaha ballaarinta heerkulka oo yar. Iska caabbinta shoogga sare. Hoosta 600 ℃, foomka barafku aad ayuu isu beddelaa, mugga ayaa si weyn isu beddelaya, iska caabbinta shoogga kulaylka ayaa sii xumaata. Silica dabiiciga ah waxaa loo adeegsadaa sida alaabta ceeriin ah, iyo qaddar ku habboon macdan -qodista ayaa lagu daraa si kor loogu qaado beddelidda quartz ee jirka cagaaran oo loo beddelo fosforite. Si tartiib ah ayaa looga soo tuuray 1350 ~ 1430 ℃ ee yaraynta jawiga.
2. Waxaa inta badan loo adeegsadaa qolka coking-ka iyo derbiga kala-goynta ee qolka gubashada ee foornada kokaha, dib-u-soo-kiciyaha iyo qolka dhoobada ee foornada dab-furan ee bir-samaynta, foornada qoyan, foornada dhalaalka dhalada alaabta iyo dhoobada, iwm Iyo qaybo kale oo xambaarsan xamuul. Waxa kale oo loo isticmaalaa qaybo heerkulkoodu sareeyo oo leh culayska shoolada qarxa kulul iyo saqafyada foornada dab-furan.
3. Qalabka lebenka silica waa quartzite sida alaabta ceyriinka ah, isagoo ku daraya qadar yar oo macdan qodis ah. Marka lagu dhex tuuro heerkulka sare, halabuurka macdanta ayaa ka kooban tridymite, cristobalite iyo galaas lagu sameeyay heerkul sare. Waxa ku jira AiO2 waxay ka badan tahay 93%. Ka mid ah lebenkii silica si fiican loo shiday, waxa ku jira tridymite ayaa ah kan ugu sarreeya, oo lagu xisaabiyo 50% ilaa 80%; cristobalite waa kan labaad, oo lagu xisaabiyo kaliya 10% ilaa 30%; iyo waxa ku jira maaddada quartz iyo wejiga galaasku waxay isu beddelaan inta u dhaxaysa 5% iyo 15%.
4. Maaddada lebenka silica waxaa laga sameeyey quartzite, waxaa lagu daray qadar yar oo macdan qodis ah, waxaana lagu shubay heerkul sare. Halabuurka macdanta waa tridymite, cristobalite iyo galaas oo lagu sameeyay heerkul sare. Waxa ku jira SiO2 wuxuu ka sarreeyaa 93%.
5. lebenka silica waa maaddi diiddan aashitada, oo iska caabin adag u leh nabaad -guurka aashitada, laakiin marka ay si xoog leh u daxalaysato wasakhda alkaline, waxaa si fudud u waxyeeleeya oxides sida Al2O3, waxayna iska caabin fiican u leedahay oxides sida iCaO, FeO , iyo Fe2O3. galmada.
6. Dhibaatada ugu weyn ee culeysku waa xasilloonida shoogga kulaylka oo hooseeya iyo dib-u-dhac yar, guud ahaan inta u dhaxaysa 1690-1730 ℃, taas oo xaddideysa baaxadeeda dalabka.
Guryaha lebenka ah ee silica
1. Iska caabbinta aashitada
Lebenka silica waa agab diidaya aashitada oo iska caabin adag u leh nabaad -guurka aashitada, laakiin marka ay si xoog leh u daxalaystaan wasakhda alkaline, waxay si fudud u waxyeeleeyaan oxides sida AI2O3, waxayna iska caabin fiican u leeyihiin oxides -ka sida CaO, FeO, iyo Fe2O3.
2. Fidinta
Kicinta kuleylka ee lebenka silica waxay kordhisaa kororka heerkulka shaqada iyada oo aan hoos u dhicin. Inta lagu guda jiro habka foornada, mugga lebenka silica ayaa kordha marka heerkulku kordho. Habka foornada, ballaarinta ugu badan ee lebenka silica waxay dhacdaa inta u dhaxaysa 100 iyo 300 ℃, iyo ballaarinta kahor 300 ℃ waxay ku saabsan tahay 70% ilaa 75% wadarta ballaarinta. Sababta ayaa ah in SiO2 uu leeyahay afar qodob oo beddelidda qaab kristal ah 117 ℃, 163 ℃, 180 ~ 270 ℃ iyo 573 ℃ oo ku jira habka foornada. Iyaga dhexdooda, ballaarinta mugga ee uu sababay cristobalite ayaa ah kan ugu weyn inta u dhexeysa 180 ~ 270 ℃.
3. Heerkulka khalkhalka ee culeyska saaran
Heerkulka khalkhalka sare ee culeyska saaran waa faa’iidada lebenka silica. Waxay u dhowdahay barta dhalaalka ee tridymite iyo cristobalite, oo u dhexaysa 1640 iyo 1680 ° C.
4. Degganaanta kuleylka
Cilladaha ugu waaweyn ee lebenka silica waa xasilloonida shoogga kuleylka oo hooseeya iyo dib -u -celin yar, guud ahaan inta u dhaxaysa 1690 iyo 1730 ° C, taas oo xaddideysa baaxadda codsigooda. Furaha go’aaminta xasilloonida kuleylka ee lebenka silica waa cufnaanta, taas oo ah mid ka mid ah tilmaamayaasha muhiimka u ah go’aaminta beddelkeeda quartz. Cufnaanta hoose ee lebenka silica, si ka sii dhammaystiran u beddelidda lime, iyo yaraanta ballaarinta haraadiga inta lagu jiro habka foornada.
5. Silica-leben-arrimaha u baahan fiiro
1. Marka heerkulka shaqadu uu ka hooseeyo 600 ~ 700 ℃, mugga lebenka silica si weyn ayuu isu beddelaa, waxqabadka ka -hortagga qabowga degdegga ah iyo kuleylka ayaa liita, xasilloonida kuleylkana ma fiicna. Haddii foornada coke -ga lagu shaqeeyo heerkulkan muddo dheer, dhagaxa si fudud ayaa loo jabin doonaa.
2. Waxqabadka
(1) Heerkulka jilcinta culeyska ayaa sarreeya. Lebenkii silica ee foornada Coke wuxuu u adkeysan karaa culeyska firfircoon ee gaariga xamuulka dhuxusha saqafka foornada ee heerkulkiisu sarreeyo, waxaana la isticmaali karaa muddo dheer iyada oo aan wax isbeddel ah lahayn;
(2) conductivity kaamerada sare. Coke waxaa laga sameeyaa dhuxul -dhagareedka qolka coking -ka iyada oo kuleylinta kuleylinta derbiyada qolka gubashada, sidaa darteed lebenkii silica ee loo adeegsan jiray in lagu dhiso darbiyada qolka gubashada waa in uu yeeshaa hawo kuleyl sare. Heerkulka heerkulka qolka gubashada foornada coke, lebenka silica waxay leeyihiin kuleyl aad u sarreeya marka loo eego lebenkii dhoobada iyo lebenkii alumina sare. Marka la barbardhigo lebenka silica ee foornada caadiga ah ee kokeega, kuleylka kuleylka ee foornada coke cufan lebenka silica waxaa lagu kordhin karaa 10% ilaa 20%;
(3) Iska -caabbinta naxdinta kuleylka ee heerkulka sare. Sababtoo ah ku -dallacidda joogtada ah iyo kookeynta foornada kookaha, heerkulka lebenka silica ee labada dhinac ee derbiga qolka gubashada ayaa si weyn isu beddelaya. Heerkulka isbeddelka heerkulka ee hawlgalka caadiga ah ma keeni doono dildilaacyo culus iyo diirka lebenkii silica, maxaa yeelay, ka sarreeya 600 ℃, foornada coke foornada silica waxay leedahay iska caabin shoog heer -kul wanaagsan;
(4) Mugga xasilloon heerkulka sare. In lebenkii silikoon ee leh qaab beddelidda kristal wanaagsan, quartz haray ma aha in ka badan 1%, iyo ballaarinta inta kululaynta la ururiyey ka hor 600C, ka dibna ballaarinta ayaa si weyn hoos ugu dhacda. Inta lagu jiro hawlgalka caadiga ah ee foornada coke, heerkulku hoos uma dhaco 600 ° C, oo dhagaxu wax badan iskama beddeli doono, xasilloonida iyo cidhiidhiga dhagaxa ayaa la hayn karaa muddo dheer.
model | BG-94 | BG-95 | BG-96A | BG-96B | |
Qaybta kiimikada% | SiO2 | ≥94 | ≥95 | ≥96 | ≥96 |
Fe2O3 | ≤1.5 | ≤1.5 | ≤0.8 | ≤0.7 | |
Al2O3+TiO2+R2O | ≤1.0 | ≤0.5 | ≤0.7 | ||
Dib -u -milicsiga ℃ | 1710 | 1710 | 1710 | 1710 | |
Porosity muuqata % | ≤22 | ≤21 | ≤21 | ≤21 | |
Cufnaanta Jumlada g/cm3 | ≥1.8 | ≥1.8 | ≥1.87 | ≥1.8 | |
Cufnaanta dhabta ah, g/cm3 | ≤2.38 | ≤2.38 | ≤2.34 | ≤2.34 | |
Xoog Burburin Qabow Mpa | ≥24.5 | ≥29.4 | ≥35 | ≥35 | |
0.2Mpa Refractoriness Under Load T0.6 ℃ | ≥1630 | ≥1650 | ≥1680 | ≥1680 | |
Isbedelka Toosan ee Joogtada ah ee kuleylka (%) 1500 ℃ X2h |
0 ~+0.3 | 0 ~+0.3 | 0 ~+0.3 | 0 ~+0.3 | |
20-1000 Exp Ballaarinta Kuleylka 10-6/℃ | 1.25 | 1.25 | 1.25 | 1.25 | |
Dhaqdhaqaaqa kuleylka (W/MK) 1000 ℃ | 1.74 | 1.74 | 1.44 | 1.44 |