Raws li cov pa hluav taws loj loj los ntawm qhov siab thiab clustering, thiab kev sib ntxiv rau cov khoom siv tsis zoo lossis cov khoom siv tsis tau zoo dua li ua ntej. Txhim kho qhov ua tau zoo ntawm cov khoom siv refractory tau dhau los ua qhov teeb meem tseem ceeb.
Cov roj tau hloov los ntawm thee rau roj, thiab cov raj loj ntawm cov khoom siv tshuaj lom neeg hnyav tau tsim kho kom zoo raws li nram no:
1) Tsim cov ntaub ntawv tiv thaiv cov khoom siv uas tiv taus corrosion, tshwj xeeb tshaj yog cov sulfuric acid acidorion;
2) tuaj yeem tsim cov chaw siab lossis cov chaw nyuaj;
3) Kev lag luam thiab pheej yig.
Lub Chimney ob sab phlu yuav tsum muaj lub teeb yuag, feem ntau yog siv cov av nplaum hnyav FLUE siv cov khoom siv amorphous refractory.
Hom lus amorphous refractory siv cov khoom siv Portland lossis Alumina Mement yog phau ntawv. Vim tias siv cov roj hnyav nrog cov khoom siv sulfur zoo li roj, cov sulfuric acid hauv cov roj flue uas muaj 3cao, agras4, 32h20, ua rau lub npoo av los tev tawm.
Txhawm rau tiv thaiv cov sulphuric acid corrosion, acid-resistant casts nrog sodium silicate silicate li ib binder siv. Qhov tsis zoo yog tias cov kua qaub rau hauv cov duab ua ntej, tab sis cov tsos tsis hloov.
Cov khoom lag luam
Tsis ntev los no, huab cua purgeion tau dhau los ua teeb meem, thiab cov cai tau ua rau Sox thiab Nox hauv kev pa pa. Yog li ntawd, cov pob zeb hauv ob sab phli yuav tsum tau tiv thaiv tsis yog sulfuric acid acidsion, tab sis kuj acid corrosion.
Ntawm tam sim no, txhawm rau daws cov roj ntsha ntau ntawm cov khib nyiab, ntub dej tso pa tawm thiab ntim tshem tawm cov khoom siv tshem tawm yuav luag siv. Cov pa roj pov tom qab cov khoom siv no yog qhov nyuaj heev, yog li cov ntaub ntawv refractory yuav tsum muaj. Performance:
1) sulfuric acid yaig;
2) Kev ua dej hiav txwv tsis kam;
3) Alkali ntsev tsis kam (na2S04 tsim los ntawm kev nqus cov kua);
4) Hydrochloric acid yaig kuj.
Raws li cov pa hluav taws loj los ntawm kev ua kom ntau thiab pawg, feem ntau yog siv los ua cov ntaub pua chaw, feem ntau nrog cov khoom noj khoom haus, thiab dej haus thaum muaj kev tiv thaiv corrosion. Raws li kev siv cov cai uas yuav tsum tau ua, lub teeb ci ntsa iab sib xyaw ua ke (lossis hluav taws xob acidegates (lossis teeb tsa refractant
Lub teeb yuag acid-resistant caslesables yog acid-resistant casables rau cov pa taws. Lawv yog hom tshiab ntawm cov tshuaj tiv thaiv corrosion corsing. Lawv muaj cov haujlwm zoo, kev tsim yooj yim, lub sijhawm pib thiab zaum kawg, thiab txuas ntxiv mus ntxiv rau hauv lub zog tom qab kub-kub. Lawv kuj yog impermeable thiab acid-resistant. Lub teeb yuag acid-resistant refractory castables tuaj yeem siv los ua ob qho tib si acid-resistant castables thiab refractory castables tsis muaj txheej txheej txheej. Lub teeb yuag acid-resistant refractory castables yog tsim los ntawm kev sib cav sib ceg, muaj hmoov, thiab cov khoom sib ntxiv ntawm cov phau ntawv yog dej iav. Lub teeb ua ke cov qauv muaj lub porosity loj, ntxhib saum npoo, thiab qhov loj me ntawm li 5 hli. Cov dej nqus cov dej thiab kev sib sau ua ke ntawm cov qoob loo thiab cov hmoov yog qhov loj, yog li cov nqaij yog qhov tsis zoo tom qab tov sib piv. Lub teeb yuag acid-resistant refractory castabent thiab cov tshuaj lom neeg me me, qhov kev tsim kho me me, lawv xav tau kev tswj hwm cov roj ntsha li qub
Lub teeb yuag acid-resistant caslesables yog ua los ntawm acid-resistant agerrates, maked cov khoom sib xyaw, sib xyaw ua ke faib, thiab npaj nrog dej lossis ib phau. Cov khoom muaj cov yam ntxwv ntawm lub zog loj, zoo acid corrosion, tsawg cov dej nqus, lub teeb rwb thaiv tsev, thiab cua sov ua kom tsis kam. Nws yog tam sim no yog qhov zoo tshaj plaws tshwj xeeb kua qaub-resistant cov ntaub ntawv rau cov ntaub ntawv ntawm desulfurization thiab yooj yim plua plav tshem cov pa taws.
Cov khoom lag luam khoom lag luam: muab faib ua ib qho thiab ob lub Cheebtsam. Lub sib chaws tivthaiv yog npaj nrog dej, thiab ob leeg tivthaiv ob npaug yog npaj nrog lub phau ntawv.
Kev qhia ua kev ua haujlwm ntawm lub teeb yuag. Resistant casts
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yam haujlwm |
ib yam |
Ultra-lub teeb |
Lub teeb yuag |
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Ceev ntom |
Kg / m3 |
750~1000 |
1000~1200 |
1200~1400 |
1400~1650 |
1650~1900 |
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Thermal conductivity ntawm chav tsev kub |
w/(m.k) |
Tsawg dua los yog sib npaug rau 0. 35 |
Tsawg dua los yog sib npaug rau 0. 45 |
Tsawg dua los yog sib npaug rau 0. 55 |
Tsawg dua los yog sib npaug rau 0. 70 |
Tsawg dua los yog sib npaug rau 0. 90 |
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Compressive lub zog ntawm chav tsev kub |
MPa |
Ntau dua los yog sib npaug rau 8. 0 |
Ntau dua los yog sib npaug rau 1 0. 0 |
Ntau dua los yog sib npaug rau 12. 0 |
Ntau dua los yog sib npaug rau 14. 0 |
Ntau dua los yog sib luag rau 17. 0 |
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Ruaj khov tshuaj qaub tus yeeb yam |
Sab nraum |
Txawv txav tshwm xws li corrosion, nrib pleb, nthuav dav, tev, thiab lwm yam. Tsis pub tso cai |
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Compressive lub zog tom qab pickling |
Ntau dua los yog sib npaug rau 0. 9 |
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Compressive lub zog ntawm chav tsev kub |
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Thermal |
Sab nraum |
Cov kab nrib pleb, tev thiab cov kab sib txawv ntau dua 2. 0}% tsis tso cai. |
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Compressive zog tom qab cua sov |
Ntau dua los yog sib npaug rau 0. 9 |
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Compressive lub zog ntawm chav tsev kub |
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Ntuj Kom Qhuav Shrinkage |
% |
Tsawg dua los yog sib npaug rau 2. 0 |
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Cim npe nrov: Kev sib zog ntawm cov acp resistant Castable, Tuam Tshoj lub teeb Seastr resistant Castable Manufacturers, lwm tus neeg, Hoobkas