Honeycomb Ceramics yog dab tsi?

Nyob rau xyoo tas los no, qhov kev thov rau cov khoom siv uas zoo rau ib puag ncig thiab siv tau zoo tau nce ntxiv thoob plaws ntau yam lag luam. Ib qho khoom siv tshiab uas tau ntes tau cov kws tshawb fawb thiab cov engineers yog honeycomb ceramics. Cov khoom siv no muaj cov qauv honeycomb tshwj xeeb, muab ntau yam zoo thiab ntau yam hauv nws daim ntawv thov. Tsab xov xwm hauv qab no muab kev tshawb nrhiav tob txog honeycomb ceramics, tham txog lawv cov hom, cov yam ntxwv, cov tshuaj lom neeg sib xyaw, cov txheej txheem npaj, thiab ntau yam kev siv hauv kev lag luam xws li tsheb, tshuaj lom neeg, hluav taws xob, thiab ntau ntxiv. Los ntawm kev nkag siab txog lub peev xwm ntawm honeycomb ceramics, peb tuaj yeem siv lawv cov txiaj ntsig zoo dua thiab qhib txoj hauv kev rau yav tom ntej ruaj khov thiab ua haujlwm tau zoo dua thoob plaws ntau qhov chaw.

1,Dab tsi yog Honeycomb Ceramics

Honeycomb ceramics yog ib yam khoom tshiab uas muaj cov qauv zoo li lub honeycomb. Thaum xub thawj nws tau siv rau hauv kev ntxuav cov pa tawm ntawm lub tsheb me me, thiab tam sim no nws tau siv dav hauv kev lag luam xws li tshuaj lom neeg, hluav taws xob, metallurgy, roj av, khoom siv hluav taws xob, thiab tshuab, nrog rau kev siv dav dua thiab muaj kev cia siab. Honeycomb ceramics tuaj yeem ua los ntawm ntau yam khoom siv, feem ntau suav nrog cordierite, mullite, alumina titanate, activated carbon, silicon carbide, activated alumina, zirconia, silicon nitride, thiab composite matrices.

2,Hom Honeycomb Ceramics

Cov khoom siv ua los ntawm honeycomb tuaj yeem muab faib ua plaub pawg loj raws li lawv siv: lub cev khaws cia cua sov, cov ntaub ntawv ntim khoom, cov khoom siv catalyst, thiab cov ntaub ntawv lim dej.

Cov khoom siv ua los ntawm cov ...

Cov khoom siv ntim khoom ua los ntawm cov khoom siv honeycomb ceramic muaj thaj chaw tshwj xeeb loj dua thiab muaj zog dua li lwm cov khoom ntim khoom zoo li tus, ua rau muaj kev faib tawm roj-kua zoo ib yam, txo qhov tsis kam ntawm lub txaj, ua haujlwm zoo dua, thiab siv tau ntev dua. Lawv siv los ua cov khoom ntim khoom hauv kev lag luam petrochemical, tshuaj, thiab tshuaj lom neeg zoo nrog kev vam meej zoo.

Cov khoom siv ua los ntawm honeycomb ceramics muaj txiaj ntsig zoo thaum siv ua cov catalysts. Siv cov khoom siv ua los ntawm honeycomb ceramic ua cov khoom nqa thiab siv cov khoom siv txheej tshwj xeeb, lawv tau npaj nrog cov hlau muaj nqis, cov hlau tsis tshua muaj, thiab cov hlau hloov pauv, ua rau muaj kev ua haujlwm catalytic siab, kev ruaj khov thermal zoo heev, lub neej ntev, thiab lub zog siab.

3,Cov yam ntxwv ntawm Honeycomb Ceramics

Lub zog siab, tiv taus kub siab, tiv taus corrosion, thiab tiv taus hnav ua rau honeycomb ceramics haum rau ntau yam kev tiv thaiv ib puag ncig. Qee cov khoom suav nrog:

Thaj chaw siab

porosity siab thiab lub qhov sib npaug

Kev poob siab tsawg

Cov coefficient ntawm kev nthuav dav thermal qis

Kev kub siab thermal shock thiab kev co tsis kam

Kev tiv thaiv siab rau kev xeb tshuaj lom neeg (anti-acid ≥99.8%)

Lub zog compressive siab

4,Cov Tshuaj Lom Zem ntawm Honeycomb Ceramics

Cov honeycomb ceramic feem ntau yog ua los ntawm kaolin, talc, hmoov txhuas, thiab av nplaum. Niaj hnub no, los ntawm kev ntxiv zeolite thiab lwm yam khoom siv refractory, lwm yam khoom tuaj yeem tau txais rau cov ntaub ntawv no.

Cov ntaub ntawv tsim kho (MOC):

Cordierite

Cov tshuaj lom neeg ntawm Cordierite:

Alumina: 35.2 ± 1.5%

Silica: 50.9 ± 1.5%

Magnesia: 13.9 ± 1.5%

5,Cov Txheej Txheem Npaj ntawm Honeycomb Ceramics

Cov khoom siv ua los ntawm honeycomb tuaj yeem ua los ntawm ntau yam khoom siv. Cov ntaub ntawv tseem ceeb suav nrog cordierite, mullite, txhuas titanate, cov pa roj carbon ua kom muaj zog, silicon carbide, alumina ua kom muaj zog, zirconia, silicon nitride, thiab cov khoom sib xyaw ua ke ntawm cordierite-mullite thiab cordierite-aluminum titanate.

Tom qab ua cov hmoov carbon activated lossis granules rau hauv cov qauv honeycomb ceramic, lub peev xwm ntxuav thiab kho cov dej khib nyiab tau zoo dua, tshwj xeeb tshaj yog nyob rau hauv kev lag luam tshuaj rau kev tshem tawm cov khoom tsis huv, dehydration, thiab decolorization ntawm cov tshuaj tua kab mob, cov tshuaj hormones, cov vitamins, nucleic acid txhaj tshuaj, thiab ntau yam kev txhaj tshuaj thiab tshuaj. Raws li honeycomb ceramics tau tsim los ntawm extrusion, ntau yam additives yuav tsum tau ntxiv rau cov khoom siv raw tseem ceeb los txhim kho cov plasticity thiab fluidity ntawm lub cev av nplaum. Cov additives no feem ntau suav nrog binders, plasticizers, deflocculants, lubricants, thiab cov neeg sawv cev ntub. Ntxiv mus, kuj tseem muaj cov neeg sawv cev khaws dej, chelating agents, antistatic agents, colloidal protectants, thiab surfactants. Tam sim no, starch, carboxymethyl cellulose, thiab polyvinyl cawv yog dav siv ua binders, tung roj thiab stearic acid ua lubricants, thiab glycerin ua plasticizer.

6,Cov ntawv thov ntawm Honeycomb Ceramics

Cov Catalyst Carriers

Thaum siv los ua cov catalyst carriers, honeycomb ceramics feem ntau yog siv rau hauv kev ntxuav tsheb pa tawm, boiler flue gas denitration (NOx), kev tshem tawm cov ntxhiab tsw phem ntawm cov pa tawm hauv kev lag luam, thiab kev tshem tawm cov pa lom thiab cov pa phem. Honeycomb ceramic catalyst carriers siv rau hauv kev ntxuav tsheb pa tawm feem ntau yog cordierite honeycomb ceramics coated nrog γ-Al2O3.

Rooj Tog Refractory Kiln

Cov rooj tog ua los ntawm cov khoom siv ua los ntawm cov honeycomb ceramic kiln muaj qhov hnyav sib dua li cov rooj tog ua los ntawm cov khoom siv ib txwm muaj 60% -75%, uas ua rau muaj kev hloov pauv cua sov sai thiab tua hluav taws sai. Kev siv cov khoom siv ua los ntawm cov honeycomb ceramics ua cov khoom txhawb nqa rau kev tua hluav taws ferrites lossis lwm yam khoom siv hluav taws xob pab txhim kho kev ua haujlwm ntawm cov khoom.

Cov lim dej ntws ntawm phab ntsa

Cov khoom siv ua los ntawm cov khoom siv honeycomb uas muaj phab ntsa nyias nyias, thiab muaj qhov porous siv tau los lim thiab ntxuav cov pa roj carbon hauv cov pa roj diesel (ntawm li ntawm 500 ℃).

7,Xaus lus, cov khoom siv ua los ntawm cov honeycomb yog cov khoom siv uas siv tau ntau yam thiab muaj cov qauv honeycomb tshwj xeeb uas muaj ntau yam zoo. Lawv siv rau hauv ntau yam lag luam, suav nrog tsheb, tshuaj lom neeg, hluav taws xob, metallurgy, roj av, khoom siv hluav taws xob, thiab tshuab. Lawv cov khoom zoo heev, xws li lub zog siab, tiv taus kub siab, tiv taus corrosion, thiab tiv taus hnav, ua rau lawv haum rau ntau yam kev siv, suav nrog cov khoom khaws cia cua sov, cov ntaub ntawv ntim khoom, cov khoom siv catalyst, thiab cov ntaub ntawv lim dej. Nrog kev nce qib tas mus li hauv kev tshawb fawb txog cov ntaub ntawv thiab kev thov kom muaj cov ntaub ntawv zoo rau ib puag ncig thiab ua haujlwm tau zoo, cov khoom siv honeycomb yuav ua lub luag haujlwm tseem ceeb hauv ntau yam lag luam, cog lus tias yuav muaj yav tom ntej ci ntsa iab rau lawv txoj kev loj hlob thiab kev siv.