Cov slurries, ua cov khoom sib xyaw ua ke ntawm cov kua thiab cov khoom khov, yog qhov tseem ceeb hauv kev lag luam xws li kev khawb av, kev ua tshuaj lom neeg, kev kho dej khib nyiab, thiab kev tsim kho. Kev ntsuas qhov ntws ntawm cov slurries kom raug yog qhov tseem ceeb rau kev ua kom zoo dua cov txheej txheem tsim khoom, tswj cov nqi, thiab ua kom muaj kev nyab xeeb ntawm kev ua haujlwm. Ntawm ntau yam thev naus laus zis ntsuas kev ntws, cov ntsuas hluav taws xob electromagnetic (EMFs) sawv tawm rau lawv cov txiaj ntsig tshwj xeeb hauv kev daws cov teeb meem uas tshwm sim los ntawm cov slurries abrasive, viscous, thiab cov khoom khov siab.
Lub hauv paus ntsiab lus ua haujlwm ntawm EMFs yog raws li Faraday Txoj Cai ntawm electromagnetic induction. Thaum cov conductive slurry ntws los ntawm lub magnetic teb tsim los ntawm lub 'meter' lub kauj, nws ua rau muaj lub zog electromotive (EMF) proportional rau qhov ceev ntws, lub zog magnetic teb, thiab qhov deb ntawm cov electrodes. Qhov hluav taws xob induction no raug ntes los ntawm cov electrodes mounted rau ntawm phab ntsa pipeline, thiab lub flowmeter hloov nws mus rau hauv qhov nyeem ntawv ntws tseeb. Qhov tseem ceeb, EMFs ntsuas qhov ntim ntws ncaj qha, tsis cuam tshuam los ntawm slurry viscosity, density, lossis qhov kub thiab txias hloov pauv - cov yam tseem ceeb uas cuam tshuam lwm hom 'meter'.
Ib qho txiaj ntsig tseem ceeb ntawm EMFs rau cov ntawv thov slurry yog lawv cov qauv tsis cuam tshuam lossis puv nkaus. Cov EMFs puv nkaus muaj cov qauv kav dej ncaj nraim uas tsis muaj cov khoom txav mus los lossis kev thaiv, tshem tawm qhov kev pheej hmoo ntawm kev txhaws, hnav, lossis poob siab los ntawm cov khoom slurry. Qhov kev tsim no ua kom cov dej ntws slurry tsis muaj kev cuam tshuam thiab txo qhov xav tau kev saib xyuas, qhov txiaj ntsig tseem ceeb rau cov slurries abrasive xws li cov mining tailings lossis cov khoom sib xyaw ua ke uas yooj yim ua rau cov khoom siv flowmeters puas tsuaj.
EMFs kuj qhia tau tias muaj kev hloov pauv zoo heev rau ntau yam khoom siv slurry. Lawv ua haujlwm tau zoo nrog cov slurries uas muaj cov kua dej conductive (piv txwv li, cov slurries raws li dej) thiab cov khoom khov kho ntawm ntau qhov ntau thiab tsawg, los ntawm cov av zoo mus rau cov pob zeb loj. Cov qauv EMF siab heev tau nruab nrog cov electrodes tiv taus corrosion (ua los ntawm cov ntaub ntawv xws li Hastelloy, titanium, lossis tantalum) thiab cov liners (roj hmab, PTFE, lossis polyurethane), ua rau lawv tiv taus cov xwm txheej slurry hnyav, suav nrog qhov kub siab thiab tshuaj corrosion.
Hauv kev lag luam, EMFs siv dav dav thoob plaws hauv kev tswj cov slurry. Hauv kev khawb av, lawv saib xyuas cov dej ntws ntawm cov mineral slurries (piv txwv li, tooj liab, hlau ore slurries) thaum lub sijhawm rho tawm thiab ua tiav, xyuas kom meej tias kev thauj mus los ore thiab kev tswj cov txheej txheem zoo. Cov chaw kho dej khib nyiab siv EMFs los ntsuas cov sludge slurry ntws, txhawb nqa cov sludge dewatering thiab pov tseg cov txheej txheem thaum ua raws li cov cai ib puag ncig. Hauv kev lag luam kev tsim kho, lawv ntsuas qhov tseeb ntawm cov slurry ntws kom tswj tau qhov sib xyaw sib xyaw thiab xyuas kom meej tias cov qauv zoo.
Yuav kom ntsuas tau qhov tseeb tshaj plaws, muaj ntau yam yuav tsum xav txog thaum ua haujlwm. Cov kua dej yuav tsum muaj kev sib kis tau zoo txaus; cov kua dej uas tsis sib kis tau (piv txwv li, cov roj sib xyaw) xav tau kev kho ua ntej lossis lwm yam ntsuas. Kev teeb tsa kom zoo, suav nrog cov kav dej ncaj nraim/ntws mus rau sab saud, zam kev cuam tshuam kev ntws. Kev saib xyuas tas li, xws li kev ntxuav cov electrodes thiab kev tshuaj xyuas cov liners rau kev hnav, khaws cia kev ntseeg tau ntawm kev ntsuas. Kev ntsuas raws li cov txheej txheem txheem (piv txwv li, cov thoob dej volumetric) kuj raug pom zoo rau cov ntawv thov tseem ceeb.
Raws li kev lag luam nrhiav kev ua haujlwm zoo dua thiab kev ua haujlwm raug, EMFs txuas ntxiv hloov zuj zus nrog cov thev naus laus zis ntse, xws li kev ua cov teeb liab digital thiab kev xa cov ntaub ntawv wireless, txhim kho kev saib xyuas lub sijhawm tiag tiag thiab kev tswj hwm chaw taws teeb. Lawv lub peev xwm los tswj cov xwm txheej slurry hnyav, ua ke nrog kev raug siab thiab kev saib xyuas tsawg, ua rau electromagnetic flowmeters yog ib qho cuab yeej tseem ceeb rau kev ntsuas slurry niaj hnub, tsav tsheb ua haujlwm zoo thoob plaws hauv cov lag luam tseem ceeb.
Lub sijhawm tshaj tawm: Lub Ib Hlis-16-2026