Kev Tshaj Tawm hauv Ceramic Pump Technology: SiC Ceramic Pump Unveiled Ntawm International Mining Exhibition, Kev Pabcuam Lub Neej Dua Ntxiv
Nyob rau hauv lub thoob ntiaj teb mining expo tsis ntev los no, cov kev taw qhia tshiab hauv tshuab twj tso kua mis tau txais kev pom zoo los ntawm cov neeg lag luam. Ntau lub tuam txhab tau dov tawm cov twj tso kua mis tsim nrog silicon carbide (SiC) ceramic, qhia tias cov thev naus laus zis no tau tsiv tawm ntawm chav kuaj thiab mus rau qhov tiag - daim ntawv thov mining ntiaj teb. Tshwj xeeb, cov twj slurry thiab FGD twj tso kua mis tau pib pom siv tau, teb - kuaj cov kev daws teeb meem raws li cov khoom siv no.
Nws yog cov kev txwv ntawm cov khoom siv uas thaum kawg txhais cov qib kev ua tau zoo. Lub Mohs hardness scale nqi silicon carbide ua ib qho ntawm cov ntaub ntawv nyuaj tshaj 9.2, uas yog ze rau lub hardness ntawm lub pob zeb diamond. Koj yuav tsum paub qhov no, tshwj xeeb tshaj yog, thaum koj khiav slurries nrog hnyav loads thiab ntxhib hais xws li ore, los yog lwm yam nyuaj solids. Wetted qhov chaw (xws li lub impeller, casing, los yog liners) nyob rau hauv cov ntaub ntawv no yuav kav ntev npaum li cas lawv ib txwm xav nrog cov hlau raug. Kev tshawb fawb tau lees paub tias SiC ceramic tuaj yeem tiv taus kev puas tsuaj 5 lossis ntau zaus zoo dua li cov qauv stainless hlau. Tsis tas li ntawd, silicon carbide ruaj khov nyob rau hauv tag nrho cov pH ntau ntawm O mus rau 14, uas txhais tau hais tias nws yog resistant rau corrosion nyob rau hauv acidic los yog alkaline daws. Nrog rau ob yam ntawm tes, cov twj ceramic yog qhov kev xaiv nthuav dav hauv qhov hnyav ntawm kev ua cov ntxhia, metallurgy, thiab tshuaj desulfurization - qhov chaw uas puas thiab corrosion yog txoj cai niaj hnub.
Cov zauv teb qhia qhov tseeb. Siv cov hlau ore concentrator uas hloov los ntawm high-chromium cam khwb cia hlau impellers rau SiC ceramic sawv daws yuav. Lawv cov slurry muaj 35% cov khib nyiab los ntawm qhov hnyav, thiab cov impellers qub tsuas yog 45 hnub ua ntej hloov. Tom qab kev sib pauv, cov ceramic impellers khiav rau 18 lub hlis ntawm qhov nruab nrab - uas yog kaum ob zaug ntev dua. Kev hloov pauv txhua xyoo poob los ntawm yim mus rau qis dua ib xyoos, txo qis 91%. Lwm txheej ntawm cov lej los ntawm cov chaw ua haujlwm kub tau pom cov twj ceramic kav ntev cuaj lub sijhawm ntev npaum li cov hlau lawv hloov. Cov no tsis yog lab cov txiaj ntsig; lawv yog cov ntaub ntawv ntau lawm.
Kev txhim kho kev ua tau zoo yog qhov tseem ceeb. Hlau impellers tau ntxhib thaum lawv hnav, thiab kev ua tau zoo maj mam plam -ib cov ntaub ntawv pom tias poob 15% tom qab peb lub hlis. Ceramic impellers, ntawm qhov tod tes, nyob du thiab tiv taus hnav, yog li kev ua haujlwm ruaj khov txawm tias tom qab ib xyoos ntawm kev pabcuam. Qhov ntawd txhais tau tias ntws thiab lub taub hau tsis ploj mus dhau sijhawm. Kev ntsuas lub zog txuag tuaj nyob ib puag ncig 8% piv rau tib lub zog hlau impellers, thiab qee qhov hydraulically optimized ceramic tsim ntaus twj tso kua mis ua tau zoo ntawm 93%. Ntxiv cov lej ntawd, thiab qhov cuam tshuam rau cov nqi khiav haujlwm yog qhov pom tau.
Yav dhau los versions ntawm ceramic twj tso kua mis muaj qhov tsis muaj zog: lawv nyuaj tab sis nkig, thiab kev cuam tshuam tsis zoo yog qhov kev txhawj xeeb. Cov kev nce qib tsis ntev los no tau cuam tshuam qhov taub hau. Nrog cov txheej txheem puv-nqus casting, refined composite formulations, thiab structural designs backed los ntawm simulation software, niaj hnub SiC twj tso cai rau lawv hnav thiab corrosion zoo thaum noj tej yam loads peb zaug zoo dua li qub qauv. Lub caij no, ceramic-graphite lub ntsej muag ntsaws ruaj ruaj nrog nws tus kheej-txias recirculation systems tam sim no muab lub neej txuas mus txog 8,000 teev.
Hauv mining, tus nqi tiag tiag yog tsawg downtime. Mines khiav ib ncig ntawm lub moos- lub twj tso kua mis tsis tau npaj tseg txhais tau tias tag nrho cov kab sib tsoo kom nres. Kev hloov pauv hlau impeller tsis yog tsuas yog cov khoom thiab kev ua haujlwm xwb, tab sis poob ntau lawm. Kev ncua sijhawm hloov pauv ntawm lub hlis mus rau xyoo txhais tau tias muaj kev cuam tshuam tsawg dua. Ib tus neeg ua haujlwm mining tau tshaj tawm tias kev hloov mus rau SiC ceramic twj tso kua mis txuag tau rau tus lej txhua xyoo hauv cov khoom siv, tab sis qhov tseem ceeb tshaj, nws ruaj khov rau tag nrho cov txheej txheem. Qhov kev ntseeg zoo li ntawd tseem ceeb dua nyob rau thaj chaw deb lossis kev ua haujlwm hauv av.
Raws li cov lus teb tau txais thaum lub sijhawm tshwm sim, nws yog qhov tseeb tias kev lag luam mining tau nthuav tawm kev txaus siab rau cov cuab yeej zoo li no. SiC ceramic twj yog ntau tshaj li kev sib pauv ntawm cov ntaub ntawv uas lawv sawv cev rau kev txhim kho tiav los ntawm cov khoom siv niaj hnub no, kev tsim khoom zoo tshaj plaws thiab cov qauv siv hydraulic ntse. Txhua tus neeg uas tau ntsib teeb meem ntawm qhov hnyav thiab corrosion yuav tsum xav txog qhov kev xaiv zoo li no.
