Hluav taws kub cib muaj ntau heev hauv cov chaw tsim khoom. Lawv feem ntau hu ua refractory cib hauv kev tsim khoom. Koj tuaj yeem hais tias lawv yog cov khoom lag luam tshwj xeeb tsim los dais qhov kub thiab txias. Kev siv ntau yam kev lag luam xav tau cov khoom siv no, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas muaj qhov kub thiab txias.
Cov ntawv blog no tham txog dab tsi hluav taws kub yog tsim los ntawm thiab sib tham txog nws cov muaj pes tsawg leeg thiab siv nyob rau hauv ntau yam lag luam.
Hluav Taws Cib yog dab tsi?
Hluav taws cib yog tsim los tiv thaiv qhov kub thiab txias uas ib txwm ua rau cov khoom siv masonry tsis muaj zog. Cov cib no ua lub luag haujlwm tseem ceeb hauv kev siv xws li hauv qhov cub, kilns, qhov cub, thiab incinerators. Hluav taws cib feem ntau ua haujlwm rau lub hom phiaj ntawm kev rwb thaiv tsev thiab kev tiv thaiv kev ruaj ntseg hauv qab cua sov.
Qhov tseem ceeb ntawm hluav taws cib mus dhau qhov kub thiab txias ib leeg; lawv kuj pab hauv kev siv hluav taws xob los ntawm kev txo cov cua sov. Paub txog cov ntaub ntawv uas ua rau hluav taws cib yog qhov tseem ceeb rau kev lag luam uas nyob ntawm cov khoom siv rau kev ua haujlwm zoo thiab kev nyab xeeb.
Kev sib xyaw ntawm Hluav Taws Cib
Dab tsi yog qhov hluav taws kub ci ua los ntawm? Cov cib hluav taws kub muaj cov khoom nram qab no.
Silica
Qhov no yog cov khoom tseem ceeb hauv hluav taws cib, suav nrog 60-96% ntawm cov khoom. Silica muaj lub siab melting point thiab yog nyob ib ncig ntawm 3200℃F. Zoo li no muab cov qauv kev ruaj ntseg nyob rau hauv huab cua kub.
Alumina
Feem ntau ua 2-36% ntawm cov muaj pes tsawg leeg, alumina txhim khu lub tshav kub tsis kam ntawm hluav taws cib. Nws melts ntawm kwv yees li 3800℃F. Cov khoom siv alumina siab heev yog qhov tseem ceeb heev rau cov ntawv thov uas yuav tsum tau muaj qhov kub thiab txias.
Fluxing Agents
Cov no muaj xws li txiv qaub, magnesia, hlau oxide, thiab alkalis. Txawm hais tias tam sim no nyob rau hauv me me xws li 2 mus rau 5 feem pua. Cheebtsam pab txo qhov melting point ntawm silica thiab alumina, yooj yim rau kev tsim khoom.
- Kev tsim hluav taws kub cib yog cov txheej txheem ceev faj thiab cov txheej txheem, uas ua rau cov khoom kawg tiv taus cov mob hnyav.
- Nws pib nrog kev khawb ntawm cov khoom siv raw ntawm hauv av, uas feem ntau yog hluav taws av nplaum, silica, thiab alumina.
- Cov no yog tom qab ntawd tso cai rau huab cua ib txwm muaj, txheej txheem uas txhim kho lawv qhov zoo los ntawm kev rhuav tshem cov impurities thiab cia cov dej noo nkag mus rau hauv.
- Tom qab tau txais huab cua txaus, cov ntaub ntawv tau muab sib xyaw nrog dej kom ua haujlwm sib xws rau kev npaj rau molding.
- Cov cua sov no- kho cov khoom sib tov yog ua tib zoo molded rau hauv cov ntaub ntawv cib thaum ua kom muaj kev sib luag thiab raug.
- Thaum kawg, cov bricks molded yog kiln -qhuav nyob rau hauv kev tswj qhov kub thiab txias nyob rau hauv thiaj li yuav tsim vitrification- ib tug txheej txheem uas cements lub cib thiab muab rau lawv zoo kawg li tiv thaiv tshav kub.
Hom Hluav Taws Cib
Cov cib hluav taws tuaj yeem muab faib ua ntau pawg raws li lawv qhov muaj pes tsawg leeg thiab npaj siv.
Cov Hluav Taws Xob Hluav Taws Xob: Cov no yog tsim los ntawm cov av nplaum hluav taws kub sib xyaw nrog cov av nplaum thiab xuab zeb. Lawv muaj 50-75% silica thiab 20-40% alumina. Lawv siv rau lub hom phiaj dav dav thiab tuaj yeem tiv taus qhov kub ntawm 1600 degree.
Silica Cib
Cov no muaj kwv yees li 95% silica. Lawv yog cov zoo tshaj plaws siv rau cov kua qaub hauv ob sab phlu rau iav manufacturing thiab hlau ua hauj lwm vim hais tias lawv muaj peev xwm tiv taus kub ntawm 2000 degree.
High Alumina Cib
Cov no muaj cov feem pua ntawm alumina ntau dua (30-50%) thiab yog tsim los rau cov xwm txheej huab cua pom hauv kev lag luam xws li steelmaking furnaces. Lawv tuaj yeem sawv kub txog 1800 degree.
Acid Resistant Cib
Tshwj xeeb tsim los tiv thaiv ib puag ncig acidic, cov cib no tseem ceeb hauv kev lag luam uas muaj tshuaj lom neeg muaj kev txhawj xeeb.
Daim ntawv thov ntawm Hluav Taws Cib
Hluav taws cib pom kev siv dav hauv ntau qhov kev lag luam vim lawv cov khoom tshwj xeeb:
- Muaj Furnaces:Hluav taws cib kab cov kab sab hauv ntawm cov cub tawg siv hauv kev ua hlau thiab iav tsim, muab thermal rwb thaiv tsev thaum tiv thaiv kev ua haujlwm ruaj khov.
- Kilns:Hauv kev lag luam tais diav thiab ceramics, hluav taws cib pab tswj qhov kub thiab txias tsim nyog rau kev tua cov khoom siv av nplaum yam tsis muaj kev puas tsuaj rau cov phab ntsa.
- Chimneys thiab qhov cub:Cov cib hluav taws kub yog siv nyob rau hauv cov chaw nyob los tsim lub qhov cub uas tuaj yeem tiv taus cua sov thaum tiv thaiv kom tsis txhob kub.
- Pizza Ovens thiab Wood Cub:Lawv lub peev xwm khaws cov cua sov ua rau lawv zoo tagnrho rau cov khoom siv ua noj uas xav tau qhov kub thiab txias zoo ib yam.
Qhov tseem ceeb ntawm Refractory Bricks
Refractory bricks yog qhov tseem ceeb rau txhua daim ntawv thov uas muaj kev kub siab - txheej txheem kub. Lawv lub peev xwm los tiv thaiv thermal shock thiab kev hloov pauv sai hauv qhov kub thiab txias ua kom lub neej ntev thiab kev ntseeg siab hauv qhov xav tau ib puag ncig.
Tsawg Thermal conductivity:Cov cuab yeej no pab khaws cov cua sov hauv qhov cub lossis qhov cub thaum ua kom cov chaw sab nraud txias dua, txhim kho lub zog ua haujlwm.
Durability tiv thaiv chemical Erosion:Ntau cov cib refractory yog tsim los tiv thaiv cov tshuaj tua kab mob los ntawm cov kua qaub lossis lwm yam corrosive uas tau ntsib hauv cov txheej txheem kev lag luam.
Ntev Keter Refractory Solutions
Thaum nws los txog rau cov khoom siv hluav taws kub zoo,Ntev Keterstands raws li ib tug reputable chaw tsim tshuaj paus tau cog lus los tsim cov ntaub ntawv refractory ruaj tailored rau ntau yam kev siv.
Koj tuaj yeem xaiv los ntawm cov cib hluav taws kub zoo tib yam, cov kev xaiv alumina siab, thiab cov kua qaub- cov cib resistant uas haum rau cov kev lag luam tshwj xeeb.Ntev Keterxyuas kom meej tias tag nrho cov khoom tau dhau los ua cov txheej txheem tswj xyuas kom zoo los lav kev ua haujlwm nyob rau hauv huab cua.
To Sum Up
Paub txog dab tsi hluav taws cib tsim los ntawm yog qhov tseem ceeb rau kev lag luam nyob ntawm cov peev txheej no rau kev ua haujlwm. Los ntawm lawv cov muaj pes tsawg leeg- feem ntau yog silica thiab alumina- rau lawv cov kev siv ntau yam hauv kev lag luam xws li kev ua hlau, tsev, thiab ceramics, hluav taws cib yog qhov tseem ceeb hauv kev tswj kev nyab xeeb thiab kev ua haujlwm hauv siab - qhov kub thiab txias.
Los ntawm kev nqis peev hauv cov ntaub ntawv zoo refractory zoo li cov uas tau muab los ntawm Ganeshas, cov tuam txhab tuaj yeem txhim kho lawv cov peev xwm ua haujlwm thaum tiv thaiv lawv cov vaj tse los ntawm kev nyuaj siab los ntawm kev kub ntxhov.
