Vim li cas Pom Pom Porosity Matters hauv Refractory Cib
Pom meej porosity yog ib qho tseem ceeb tshaj plaws ntawm lub cev qhia siv los ntsuas cov cib refractory. Nws hais txog qhov ntim feem pua ntawm qhov qhib pores hauv cov khoom siv refractory. Cov pores no tuaj yeem nqus dej lossis roj thiab cuam tshuam ncaj qha rau thermal rwb thaiv tsev, lub zog txhua yam, slag tsis kam thiab kev pabcuam lub neej.
Rau cov neeg yuav khoom, pom meej porosity tsis yog tus lej kuaj xwb. Nws pab piav qhia tias yog vim li cas ib lub cib refractory muaj zog dua, vim li cas lwm lub cib muab cov rwb thaiv tsev zoo dua, thiab vim li cas cov chaw sib txawv ntawm qhov cub yuav tsum muaj cov qauv cib sib txawv. Fireclay cib, silica cib thiab insulating firebrick txhua tus muaj qhov sib txawv porosity vim lawv tau tsim los rau kev ua haujlwm sib txawv.
Hom Pom Pom Pom Zoo ntawm Fireclay Cib
Fireclay cibNws yog dav siv nyob rau hauv dav siv nyob rau hauv lub furnace hauv ob sab phlu, boiler hauv ob sab phlu, kiln tsheb thiab backup hauv ob sab phlu. Ib qho kev pom meej porosity ntau rau cov qauv ntom ntom fireclay cib feem ntau nyob ib puag ncig15% mus rau 25%, nyob ntawm cov ntsiab lus alumina, cov khoom siv raw zoo thiab qhov kub thiab txias.
Lower porosity fireclay bricks feem ntau muaj cov cuab yeej zoo dua thiab muaj zog tiv thaiv slag nkag. Ntau dua porosity fireclay cib yuav muaj cov rwb thaiv tsev zoo dua tab sis qis dua thiab qis dua -cov kabmob muaj peev xwm.
Thaum xaiv fireclay cib, cov neeg yuav khoom yuav tsum tsis txhob sib piv Al2O3 cov ntsiab lus. Pom meej porosity, bulk ntom, txias crushing zog thiab refractoriness nyob rau hauv load yuav tsum tau soj ntsuam ua ke.
Hom Pom Porosity ntawm Silica Cib
Silica cib feem ntau yog siv rau hauv coke qhov cub, iav rauv thiab kub moj tej tawg qhov cub qhov twg siab - kub ntim stability yog ib qho tseem ceeb. Qhov pom meej porosity ntawm ntomsilica cibfeem ntau yog nyob ib ncig ntawm 18% mus rau 24%.
Silica bricks xav tau cov qauv siv lead ua ruaj khov thiab tswj qhov pore faib. Yog tias qhov porosity siab dhau lawm, roj thiab slag tuaj yeem nkag tau yooj yim dua. Yog hais tias lub cib yog tuab heev yam tsis muaj kev tswj kom zoo, thermal shock kev ua tau zoo yuav raug cuam tshuam.
Rau cov ntawv thov iav rauv, silica cib buyers feem ntau tsom rau SiO2 cov ntsiab lus, residual quartz, bulk ntom, pom porosity thiab creep kuj.
Hom Pom Porosity ntawm Insulating Firebrick
Insulating firebrick yog txawv ntawm ntom fireclay cib thiab silica cib. Nws lub hom phiaj yog kom txo tau cov cua sov, yog li nws yog tsim los nrog ntau dua pore ntim. Qhov pom tseeb qhov porosity rau insulating firebrick tuaj yeem nyob ib puag ncig 45% mus rau 75%, nyob ntawm qib, ceev thiab kev pabcuam kub.
Cov porosity siab dua txhais tau tias qis thermal conductivity thiab rwb thaiv tsev zoo dua. Txawm li cas los xij, nws kuj txhais tau tias qis dua txhua yam muaj zog. Qhov no yog vim li casinsulating firebricksfeem ntau yog siv nyob rau hauv cov ntaub ntawv thaub qab, kiln tsheb rwb thaiv tsev, lub ru tsev rauv los yog qis -load rwb thaiv tsev txheej.
Rau JM23, JM26, JM28 thiab lwm lub teeb yuag rwb thaiv tsev cib, cov neeg yuav khoom yuav tsum tau them sai sai rau qhov kev pabcuam kub, qhov ntom ntom, thermal conductivity thiab shrinkage tom qab cua sov.
Yuav Ua Li Cas Xaiv Txoj Cai Porosity Level
Tsis muaj ib qho "zoo tshaj" pom porosity rau tag nrho cov cib refractory. Qhov kev xaiv raug yog nyob ntawm qhov chaw ua kom sov.
Rau qhov kub- lub ntsej muag lub ntsej muag nrog slag tiv tauj, qhov porosity qis dua thiab qhov ntom ntom dua yog feem ntau nyiam. Rau thaub qab rwb thaiv tsev, porosity ntau dua thiab qis thermal conductivity yog qhov tseem ceeb dua. Rau iav furnaces los yog coke ncu, silica cib yuav tsum tau tswj porosity thiab ruaj khov ntxhia muaj pes tsawg leeg.
Ua ntej muab qhov kev txiav txim, cov neeg yuav khoom yuav tsum muab qhov cub kub, cua, hom roj, tshuaj tua kab mob thiab kev teeb tsa. Qhov no tso cai rau tus neeg muag khoom kom pom zoo cov qib cib tsim nyog tsis yog tsuas yog muab cov lus qhia dav dav.
Pom meej porosity pab cov neeg yuav khoom nkag siab qhov sib npaug ntawm lub zog, rwb thaiv tsev thiab corrosion kuj. Fireclay cib feem ntau muaj qhov porosity nruab nrab, silica cib yuav tsum tau tswj cov pore qauv, thiab insulating firebricks muaj ntau dua porosity rau tshav kub-txuag kev ua tau zoo. Sib piv porosity ua ke nrog qhov ntom ntom, lub zog thiab thermal conductivity tuaj yeem pab cov neeg yuav khoom xaiv qhov zoo refractory cib rau txhua qhov chaw rauv taws.
