Thaum tsim cov silicon cib, vim li cas yuav tsum pov tseg silicon cib ntxiv rau cov khoom xyaw?
Thaum npaj silica cib mortar, ib qho ntawm cov khib nyiab silica cib feem ntau yog ntxiv rau cov khoom xyaw, lub hom phiaj ntawm kev txo qis kev nthuav dav thiab kev ntxhov siab tsim tawm thaum lub sij hawm tua ntawm cov khoom, txo cov tiam ntawm cov kab nrib pleb, thiab ua kom cov qoob loo. Tus nqi ntxiv yog cuam tshuam nrog cov duab thiab qhov hnyav ntawm lub cib. Rau cov cib tshwj xeeb uas hnyav dua 25kg, 20 feem pua ntxiv rau 25kg lossis ntau dua cov cib tshwj xeeb tuaj yeem ntxiv 30 feem pua; rau tshwj xeeb-zoo li tus silica bricks, 30 feem pua tuaj yeem ntxiv. Ua tib zoo saib xyuas qhov teeb meem no thaum ntxiv cov khib nyiab silica cib. Kev sib ntxiv ntau dhau yuav txo qhov refractoriness thiab mechanical zog ntawm cov khoom thiab ua kom cov porosity. Yog li ntawd, tus nqi ntawm cov khib nyiab cib yuav tsum tsis txhob ntau dhau.
Dab tsi yog tus neeg sawv cev sib txuas uas nquag siv?
Cov binders siv hauv kev tsim cov silica bricks yog sulfite pulp pov tseg kua thiab txiv qaub kua txiv. Thaum cov kua txiv qaub yog siv los ua ib daim ntawv khi, nws ua raws li cov yas yas. Cov kua txiv qaub ua kom lub zog ntawm cov cib thaum lub sij hawm ziab, thiab dhau los ua cov mineralizer thaum tua hluav taws, uas txhawb kev hloov pauv ntawm quartz.
Txiv qaub yuav tsum muaj ntau ntawm CaO active, undecomposed CaCO, thiab MgCO, tsis ntau tshaj 5 feem pua, thiab ALO, ntxiv rau Fe: OJ plus SiO tsis ntau tshaj 5 feem pua. Thaum nws muaj cov khoom loj ntawm cov hluav taws kub hnyiab Ca-CO thiab cov txiv qaub dhau lawm, cov khoom yuav tsim cov qhov molten, uas yuav cuam tshuam rau cov khoom zoo.
Tus nqi ntawm txiv qaub ntxiv yuav tsum tau hloov mus rau hauv CaO thaum lub sij hawm batching. Tus nqi ntawm txiv qaub ntxiv nyob ntawm cov khoom, thiab feem ntau hloov pauv ntawm 1.5 feem pua thiab 2.5 feem pua. Piv txwv li, hauv kev tsim cov coke cub silica cib, tus nqi ntawm CaO ntxiv yog 2.0~ 3.0 feem pua i, thiab tus nqi ntawm Ca0 ntxiv yog 1.4~ 1.75 feem pua rau kev tsim hluav taws xob rau hluav taws xob silica cib.
Dab tsi yog cov khoom xyaw ntawm silica bricks?
Siv cov silica zoo nrog cov impurity ntawm tsawg dua 0.5 feem pua, yaug nrog dej kais dej ua ntej batching kom ntseeg tau qhov zoo ntawm cov theem thaum ntxov. Sib tov ceev-hloov quartz thiab qeeb-hloov quartz thaum lub sij hawm batching tuaj yeem txo qhov kub ntawm sintering los ntawm 20 degree. Nyob rau hauv cov txheej txheem batching, qhov tseem ceeb particle loj yog txo los ntawm 3mm mus rau 2mm, uas yuav ua rau kom lub zog interface ntawm cov khoom thiab txhawb kev hloov dua siab tshiab ntawm quartz.
Tsis tas li ntawd, xaiv cov mineralizers tshiab kuj tseem ceeb heev los txhim kho cov khoom zoo. Tam sim no, cov mineralizer uas feem ntau cov neeg tsim khoom ntxiv rau cov khoom xyaw tseem yog txiv qaub kua txiv thiab cov nplai hlau. Txhawm rau ua kom lub load softening kub ntawm cov khoom, tus nqi ntawm FeO ntxiv tau raug txo los ntawm 2.5 feem pua mus rau tsawg dua 1 feem pua. Yog tias cov khoom siv feldspar lossis cov khoom siv sib xyaw ua ke uas muaj cov hlau alkali siv, cov txiaj ntsig zoo tuaj yeem ua tiav.
