Nov yog qhov khoom: cov neeg yuav khoom nug peb "castable lossis cib?" yuav luag txhua lub lim tiam, thiab cov lus teb ncaj ncees annoys neeg - nws nyob ntawm. Tshaj tag nrho cov phiaj xwm - cov khoom siv ntxiv rau kev teeb tsa ntxiv rau kev poob qis - zoo li lub cib feem ntau yeej ntawm tus nqi ib tuj ntawm cov khoom, thaum monolithic refractory yeej qhov twg los xij, kho ceev, lossis thermal cycling teeb meem. Tsis yog pheej yig dua feem ntau; cov lus teb nyob ntawm lub nkoj, thaj tsam, thiab koj nyob li cas. Cov lus qhia no muab rau koj tus qauv nqi uas peb siv sab hauv, thaj chaw uas txhua qhov system yeej, thiab cov lej los khiav koj tus kheej sib piv. Peb yog TOPOWER, Tuam Tshoj refractory Hoobkas muab monolithic refractory thiab zoo li tus cib hauv ob sab phlu rau 30+ lub teb chaws txij thaum 2008.
Qhov txawv ntawm Monolithic thiab Shaped Refractory yog dab tsi?
Monolithic refractory txhais tau hais tias tsis zoo li cov khoom ntsia ntawm qhov chaw: castables, gunning mixes, ramming masses, plastics. Cov duab refractory txhais tau tias ua ntej- cov cib cib thiab cov duab ua ntej: fireclay cib, siab alumina cib, magnesia carbon cib, thiab lwm yam. Ib qho yog tsim nyob rau hauv lub nkoj. Lwm yam yog tsim nyob rau hauv peb cov nroj tsuag.
Qhov sib txawv ntawd hloov tag nrho cov qauv nqi. Ib txoj hauv kev zoo li tus nqi cib nqi ntxiv rau kev ua haujlwm bricklaying. Ib txoj hauv kev monolithic nqi cov khoom siv ntxiv rau kev ua haujlwm, kev co, kev kho, thiab feem ntau ntev dua ua ntej thaum tshav kub kub. Txhua txoj haujlwm monolithic refractory peb nkoj suav nrog kev txhawb nqa kev teeb tsa; txhua lub cib xaj nkoj nrog nteg kos duab.
Feem ntau cov nroj tsuag khiav ob lub tshuab - monolithic refractory hauv qee thaj chaw, zoo li lwm tus. Lo lus nug yog cheeb tsam twg tau txais qhov twg.
Tus Nqi Ib Ton vs Tus Nqi Ib Leeg
Qhov no yog qhov uas cov neeg yuav khoom yuam kev. Sib piv cov nqi khoom ib tuj ntawm monolithic thiab zoo li tus refractory piv tus lej tsis raug.
Cov khoom siv nqi ib tuj txawv ntawm qib thiab los ntawm qhov system - thiab cib zoo li pheej yig dua ntawm daim ntawv. Tab sis tus nqi phiaj xwm yog dab tsi them koj daim ntawv them nqi: cov khoom siv, kev teeb tsa ua haujlwm, formwork, downtime, thiab pes tsawg cua sov los yog lub hlis cov txheej txheem muaj sia nyob.
Nov yog qhov sib piv tiag tiag los ntawm peb cov ntaub ntawv. Ib tsob ntoo cement nyob rau hauv Middle East lined preheater cua daj cua dub nrog cib - tus nqi qis rau ib -tuj cov khoom siv, ntxiv rau cib, ntxiv rau 6 hnub ntawm kev poob qis. Tib lub cua daj cua dub re-kab nrog peb qis- cement castable: cov khoom siv ntau dua tus nqi ib tuj, cam khwb cia rau hauv qhov chaw, 4 hnub ntawm downtime, thiab cov castable hauv ob sab phlu outlasted lub cib los ntawm 11 lub hlis. Cov nqi sib tw tau nyiam monolithic, txawm tias cov khoom siv ib tuj nqi ob npaug.
Typical campaign life in a moderate zone: a dense brick lining runs 18-24 months; qhov sib piv qis - cement castable khiav 14-22 lub hlis, nyob ntawm qhov hnyav ntawm kev teeb tsa zoo. Cov khoom siv tus nqi sib txawv yog tiag tiag, thiab qhov sib txawv ntawm lub neej yog me dua qhov sib txawv ntawm tus nqi - uas yog vim li cas qhov kev suav flips ntawm cheeb tsam.
Tus nqi sib txawv tuaj qhov twg? Monolithic refractory khoom nqa ntau binder, nplua ntau dua, thiab ua ntau dua ib tuj dua li lub cib raug rho tawm haujlwm - uas yog tus nqi sib kis. Qhov zoo li tus nqi refractory qhia txog kev nias thiab tua lub zog. Ob tus nqi ncaj ncees; lawv yuav khoom sib txawv.
Tias yog vim li cas peb hais cov lej phiaj xwm, tsis yog ib tus nqi -tuj xwb. Nug ib tus neeg muag khoom rau ob qho tib si.
Qhov twg Monolithic Linings yeej
Monolithic refractory yeej nyob rau hauv plaub qhov xwm txheej.
Complex geometry. Burner blocks, arches, ductwork, tundish shapes - qhov chaw cib tsis tuaj yeem txiav kom haum yam tsis muaj pov tseg. Castable nchuav rau hauv cov duab.
Kev kho sai. Txiav tawm qhov puas seem, nrum tshiab, kho, rov qab online. Kev kho cib txhais tau hais tias rub ib ntu thiab rov- tso, uas yuav siv sij hawm ntev dua thiab feem ntau txhais tau tias kaw qhov chaw loj dua.
Thermal cycling. Castables, tshwj xeeb tshaj yog qis- cement versions, tswj cov cua kub ceev thiab cua txias zoo dua li cov cib ntom ntom hauv kev ua haujlwm batch.
Ib -cov ntaub ntawv. Tsis muaj pob qij txha txhais tau tias tsis muaj kev sib koom ua ke. Nyob rau hauv cov cheeb tsam uas slag nres ua raws li cov kab mortar, ib qho kev sib koom ua ke tsis muaj castable hauv ob sab phlu tshem tawm hom kev ua tsis tiav tag nrho.
Cov txiaj ntsig zoo no qhia meej meej tshaj plaws hauv kev kho- kev lag luam hnyav. Steel mills reline tundishes txhua lub lim tiam; cement nroj tsuag thaj preheater aav raws caij nyoog. Nyob rau hauv ob qho tib si, monolithic refractory ua rau lub nkoj hauv online ntev dua ntawm tag nrho cov relines - thiab lub sijhawm ua haujlwm muaj nqis ntau dua li cov khoom khaws cia.
Qhov twg zoo li cib Linings yeej
Cib linings yeej qhov twg lub luag hauj lwm yog hnyav thiab geometry yog ncaj.
High hnav thiab kub kub. Nthuav tua cib -siab alumina cib, magnesia carbon qib - outlast castables nyob rau hauv qhov kub tshaj plaws, feem ntau abrasive abrasive: kiln kub zones, ladle slag kab, BOF chim.
Paub, rov ua tau zoo. Lub cib raug rho tawm haujlwm nyob rau hauv ib lub kiln raws li kev tswj xyuas. Lub castable qhov kawg zoo nyob ntawm tus installer lub vibration, tswj dej, thiab kho. Cib coj tus installer tawm ntawm qhov sib npaug.
Cov khoom muag thiab kev npaj. Bricks Tshuag thiab nkoj raws li cov khoom sib cais; koj khaws cov khoom seem thiab hloov cov chaw puas lawm. Castable muaj lub neej txee thiab hnub batch.
Rau qhov ncaj-walled, siab- coj cheeb tsam nrog tag nrho- nkoj reline, cib feem ntau yog qis dua - phiaj los nqis tes- nqe lus teb - thiab peb yuav qhia rau koj li ntawd txawm tias thaum nws txhais tau tias muag tsawg tonnage. Tsis muaj qhov no ua rau zoo li refractory "zoo" dua li monolithic refractory. Nws ua rau cib lo lus teb rau qhov hnyav, ncaj- lub luag haujlwm ntawm phab ntsa - thiab feem ntau cov nkoj nruab ob lub tshuab, txhua qhov hauv thaj chaw uas nws khwv tau nws khaws cia.
Installation, Downtime thiab kho nqi
Installation yog qhov twg qhov sib txawv tiag tiag qhia. Bricklaying yog kev txawj ua hauj lwm, tab sis nws yog ceev: ib tug neeg coob kab ib tug ladle phab ntsa nyob rau hauv ib tug ua hauj lwm. Casting yuav siv sij hawm ntev dua - formwork, sib tov, vibration, thiab ib tug kho lub sij hawm ua ntej lub nkoj yuav sov. Rau ib tug reline qhov twg txhua txhua hnub ntawm downtime yog ploj lawm ntau lawm, qhov sib txawv no muaj peev xwm tshaj cov khoom nqi nws tus kheej.
Tab sis kev kho sab nyiam monolithic. Ib cheeb tsam hnav nyob rau hauv ib txoj hlua castable tau txiav tawm thiab rov ua dua hauv ib hnub. Tib cheeb tsam nyob rau hauv ib lub cib hauv ob sab phlu xav tau lub nplhaib ib puag ncig disassembled kom ncav cuag nws. Rau cov nkoj nyob hauv theem - ladles, tundishes, kiln hoods - lub voj voog kho monolithic yog luv dua thiab pheej yig dua rau kev kho.
Peb txoj cai: yog tias koj reline tag nrho lub nkoj ib zaug, cib feem ntau pheej yig dua rau ib qho kev sib tw. Yog tias koj kho thaj chaw thaum lawv hnav, monolithic them. Qhia rau peb koj tus qauv reline thiab peb mam li nqe raws li.
Thermal Performance thiab Lining Design
Ob lub tshuab kuj txawv ntawm qhov txheej txheem tsim.
Thermal tsim yog qhov twg monolithic refractory muaj qhov zoo ntawm cov qauv. Castables tso cai rau kev tsim vaj huam sib luag hauv ib lub ncuav - ib txheej ua haujlwm ntom ntom ntom ntom ntom ntom ntom ntom ntom, tsim ua ke. Uas txuag ib chav kawm rwb thaiv tsev cais thiab shrinks lub hauv ob sab phlu.
Brick linings need separate courses: dense brick over insulating fire brick, with a mortar joint between. Nws ua haujlwm, thiab nws tau ua pov thawj, tab sis nws siv ntau txheej thiab ntau zog.
Rau cov cua sov- poob- cov hlab ntsha rhiab heev - rotary kilns, furnaces nrog cov nqi hluav taws xob siab - thermal tsim tuaj yeem cuam tshuam ntau npaum li cov khoom siv nqi. Peb tsim ob qho tib si, thiab peb yuav muab cov cua sov rau koj- tus lej poob ib square meter rau txhua qhov kev xaiv ua ntej koj xaiv. Hauv kev xyaum, yog vim li cas monolithic refractory dominates complex preheater zones thaum cib dominates kiln kub zones.
Yuav Txiav Txim Li Cas: Daim Ntawv Teev Npe Ua Haujlwm
Plaub daim tshev txiav txim nws. Khiav lawv tawm tsam koj lub nkoj ua ntej koj xaiv.
Rau feem ntau cov hlab ntsha, cov lus teb sib tov ob lub tshuab. Monolithic refractory lis cov complex thiab kho- thaj tsam; zoo li refractory tuav cov hnyav, ncaj- cov phab ntsa.
Kev pabcuam kub thiab cua. Tshaj 1,500℃lossis txhoj puab heev slag? Cov qib cib raug pov thawj muaj. Hauv qab no, ob qho tib si ua haujlwm.
Geometry. Yog hais tias cheeb tsam muaj curves, ces kaum, los yog complex duab, monolithic yeej ntawm pov tseg ib leeg.
Downtime kam rau ua. Lub nkoj puas tuaj yeem poob rau kev kho 48-teev? Yog tsis yog, cib rov qab online sai dua.
Kho qauv. Koj puas thaj tsam thaj tsam ntawm kev sib koom ua ke tag nrho? Monolithic kho sai dua thiab pheej yig dua.
Tseem tsis paub meej? Xa peb lub nkoj kos duab thiab cov ntaub ntawv ua haujlwm. Peb muab ob lub tshuab, yog li cov lus pom zoo tsis muag rau koj ib sab - peb mam li qhia koj seb peb yuav siv li cas, thiab vim li cas. Yog tias peb xav tias monolithic refractory yeej ib txwm yog cov lus teb, peb yuav muaj ib kab khoom, tsis yog ob.
Ordering: Lub Sijhawm Leading, Them Nyiaj & Ntim
Peb hais ob qho tib si pob tshab. Lub sij hawm ua: cib 10-15 hnub tom qab tso nyiaj, castables 7-12 hnub. Kev them nyiaj yog T / T nrog 30% tso nyiaj thiab 70% ua ntej xa zaub mov.
Rau kev tshaj tawm kev tshaj tawm, xa tuaj rau peb: hom nkoj, thaj chaw, kev pabcuam kub, txheej tuab, thiab koj lub neej tam sim no hauv cov cua sov lossis lub hlis. Peb mam li hais ob qho kev xaiv nrog lub neej xav tau, yog li koj sib piv cov phiaj xwm, tsis yog nqi tsev xwb.
Saib cov monolithic refractory ntau thiab covzoo li refractory ntau yamib sab ntawm - tib tsob nroj ua ob qho tib si. Pebsiab alumina castable qhiathiab covfireclay cib nploojqhia ob qhov kawg ntawm qhov ntau.
Cov kab hauv qab: monolithic vs zoo li tus refractory tsis yog kev sib tw nrog ib tus yeej. Cib yeej ntawm lub luag haujlwm hnyav thiab nrawm nrawm nrawm; monolithic yeej ntawm geometry, kho, thiab thermal cycling. Khiav cov naj npawb phiaj xwm, tsis yog tus nqi ib -tuj, ces nug. Peb teb hauv 24 teev.
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