Lub npe hu ua kiln installation yog hais txog cov txheej txheem kev ua haujlwm ntawm kev sib koom ua ke thiab stacking cib uas ua tau raws li cov txheej txheem ntawm cov khoom lag luam ib nrab tiav hauv cov kiln raws li cov yam ntxwv ntawm cov kiln thiab cov kev xav tau ntawm thermal system thaum cov khoom raug rho tawm haujlwm. . Rau qhov chaw kiln, nws tseem hu ua chaw thau khoom (kiln) tsheb.
Yuav kom ua tiav lub hom phiaj saum toj no, nws yog ib qho tsim nyog yuav tsum tau tsim daim duab qhia kev teeb tsa lub kiln thiab cov txheej txheem kev ua haujlwm rau lub kiln installation txhawm rau txhawm rau txhawm rau txhim kho lub kiln installation. Txawm hais tias qhov kev teeb tsa ntawm lub qhov cub thiab qhov hluav taws kub hloov hluav taws xob muaj lawv tus kheej cov yam ntxwv, piv txwv li, lub qhov cub hluav taws xob teeb tsa cov cib ntawm lub tsheb kiln, thaum lub qhov hluav taws kub hloov hluav taws xob thauj cov cib ncaj qha mus rau hauv lub kiln. Cov hauv paus ntsiab lus uas yuav tsum tau ua kom zoo thaum kos duab tseem yog tib yam. Xws li kev hloov hluav taws xob, qhov chaw thau khoom ntawm qhov sib txawv ntawm cov cib, thiab lwm yam. Cov hauv qab no yuav siv qhov kev teeb tsa ntawm lub qhov cub ua piv txwv los piav qhia qee cov hauv paus ntsiab lus ntawm kev kos duab kos duab kiln.
Thaum tsim cov phiaj xwm kev teeb tsa lub qhov cub, cov teeb meem hauv qab no feem ntau suav hais tias:
1. Txiav txim siab qhov siab thiab txoj kev ntawm kiln installation raws li ntau hom cib. Feem ntau, qhov siab ntawm qhov cub ntawm magnesia cib thiab thawj-chav aluminium cib yog 1-1.1m; silica cib yog 1-1.7m; av nplaum cib yog qhov chaw nyob nruab nrab. Feem ntau ntawm cov cib installation txoj kev yog tiaj tus, thaum silica bricks yog ntsug installation thiab av nplaum cib yog sab installation.
2. Raws li cov cib sib txawv, txiav txim siab qhov sib piv ntawm qhov sib txawv ntawm cov cib thiab cov cib tshwj xeeb. Feem ntau, qhov sib piv ntawm cov cib tshwj xeeb thiab cov cib dav dav ntawm tib lub tsheb kiln yog li 4: 6. Nyob rau tib lub sijhawm, raws li ntau hom cib, txiav txim siab ntau hom kiln installation txoj haujlwm. Feem ntau, cov qauv thiab cov qauv zoo tib yam cib tau nruab rau hauv qis qis, thiab cov cib tshwj xeeb zoo li tau muab tso rau hauv sab saud, thiab qee qhov tshwj xeeb zoo li cov cib lossis cib uas yooj yim tawg thaum tua raug ntim (cib qhwv).
3. Ntawm qhov kev ua kom ntseeg tau qhov zoo ntawm kev tua hluav taws, ua kom cov cib kom ceev (uas yog, qhov nyiaj ntawm cib rau ib chav tsev ntawm lub tsheb kiln) kom tso zis ntau ntxiv thiab txo cov roj noj.
4. Ua kom cov roj ntws zoo li qub thiab cov cua sov hloov tau zoo thaum lub sij hawm tua ntawm cov cib.
Yog li ntawd, nyob rau hauv kev tsim cov ntaub ntawv refractory, cov kev cai yooj yim rau qhov zoo ntawm cov kiln yog kom ntseeg tau tias cov cib pawg yog tiaj tus, ruaj khov, thiab ncaj, thiab tiv thaiv cov cib los ntawm kev sib txuas ua ke vim qhov kub thiab txias, thiab txo qis. distortion ntawm cov khoom raug rho tawm haujlwm. Yuav kom ua tau raws li qhov xav tau saum toj no, ib txheej ntawm cov xuab zeb nrog cov nplej loj ntawm 0.5-3mm feem ntau yog sib npaug ntawm txhua txheej ntawm cib thaum txhim kho lub kiln. Cov khoom uas muaj cov khoom sib txawv muaj cov kev xav tau sib txawv rau cov xuab zeb txhaws hauv qhov cub. Feem ntau, av nplaum cib thiab siab alumina cib siv silica xuab zeb, bauxite shavings, mov husk los yog mov husk tshauv; silica cib siv pov tseg silica cib xuab zeb lossis silica xuab zeb; Magnesia bricks yog siv Magnesia los yog chrome ore.
1. Kev tua
Cov cib tau dhau los ua cov tshuaj tiv thaiv lub cev-tshuaj lom thaum lub sijhawm tua hluav taws kom ua rau cov cib compact, nce lub zog, ruaj khov hauv ntim, thiab xyuas kom meej qhov ntev ntawm sab nraud.
1. Peb theem ntawm kev tua hluav taws
Thaum lub sij hawm firing ntawm refractory cov ntaub ntawv, tag nrho cov firing txheej txheem yuav muab faib ua peb theem raws li cov kev hloov ntawm cov khoom:
(1) Lub cua sov theem, uas yog, txij li lub sij hawm cov khoom nkag mus rau hauv lub kiln los yog ignites mus rau lub sij hawm thaum cov khoom mus txog ib tug siab dua kub rau tua. Nyob rau theem no, cov cib yog rhuab, qhov seem ntawm cov dej noo thiab cov tshuaj crystallization noo noo yog tawm, lub decomposition ntawm tej yam tshuaj thiab tsim cov tebchaw tshiab, polycrystalline transformation thiab kua theem tsim, thiab lwm yam, nrog rau cov decomposition ntawm organic thiab inorganic binders, additives, Oxidation thiab combustion, thiab lwm yam., tso CO2, dej thiab lwm yam me me molecules. Nyob rau theem no, vim yog cov laj thawj saum toj no, qhov hnyav ntawm qhov khoob yog txo, qhov porosity yog nce, thiab lub zog yog txo.
Raws li qhov kub thiab txias nce, cov kua theem tsim kub thiab theem synthesis kub tau mus txog. Vim lub diffusion, ndlwg, dissolution, nag lossis daus thiab huab cua hloov txheej txheem ntawm cov kua theem, cov hais tau txuas ntxiv los ze zog ua ke nyob rau hauv qhov kev txiav txim ntawm qhov nro ntawm cov kua theem los txhawb lub densification ntawm lub cev ntsuab. Lub zog yog nce, lub ntim yog txo, lub porosity yog txo, thiab ntsuab lub cev yog sintered.
(2) Lub tshav kub preservation theem ntawm kev kub hnyiab ntau dua. Ntau yam kev cuam tshuam hauv lub cev ntsuab zoo li ua tiav thiab txaus, tus naj npawb ntawm cov theem ua kua nce ntxiv, theem crystalline ntxiv zuj zus, thiab cov cib ntsuab mus txog qhov ntom ntom.
Thaum lub sij hawm firing txheej txheem ntawm cov khoom, tsis tsuas yog lub nto yuav tsum mus txog rau lub firing kub, tab sis nyob rau hauv lub sab hauv ntawm cov khoom yuav tsum tau mus txog rau lub firing kub. Cov txheej txheem kub homogenization no ua tiav los ntawm kev hloov hluav taws xob, thiab nws yuav siv sijhawm qee lub sijhawm rau qhov no. Nws tuaj yeem pom tias qhov loj dua cov khoom thiab qhov siab dua qhov cub ntom ntom, lub sijhawm no yuav ntev dua. Tsis tas li ntawd, vim qhov kub tsis sib xws ntawm ntau qhov chaw hauv qhov cub, yuav tsum muaj qee lub sijhawm tuav.
(3) Lub caij txias yog hais txog qhov kub ntawm qhov kub siab dua sintering mus rau qhov kub tawm ntawm qhov cub. Nyob rau theem no, kev hloov pauv ntawm cov qauv thiab tshuaj lom neeg ntawm cov khoom ntawm qhov kub thiab txias yog qhov tseem ceeb. Nyob rau theem pib ntawm theem no, qee qhov kev hloov pauv ntawm lub cev-tshuaj lom neeg tseem tab tom tshwm sim hauv cov khoom, xws li crystallization ntawm theem, kev hloov pauv ntawm qee yam muaju, lub zog ntawm cov iav theem, thiab tiam ntawm microcracks. Cov cua txias yuav cuam tshuam rau lub zog, thermal shock kuj thiab lwm yam khoom siv lub cev ntawm cov khoom.
