Cov txheej txheem xaiv rau cov ntaub ntawv refractory rau cov nroj tsuag me me, thiab cov khoom siv sib txuas ntxiv, uas yog qhov yooj yim rau cov kev cuam tshuam thiab hloov pauv tsis ua rau lub cev puas; Txhua lub castables siv, yog li ntawd cov zuag qhia tag nrho ruaj khov ntawm lub hauv paus hauv lub cev yog qhov zoo. Cov txheej txheem hauv cov kab hlau sib xyaw ua ke nrog cov khoom ua ke thiab cov chaw ua kom zoo dua. Txoj kev no yog qhov yooj yim dua los tsim ntau dua li castables, tsis tas yuav tsum muaj pwm ntxiv, thiab muaj lub neej pabcuam zoo tshaj plaws.
Kev kub-kub Alumina, Koob Coke Cekary Kiln, cov chaw sib txuam sib tshooj, thiab lwm yam. Siv cov qauv ua ntej ua ke nrog Masonry cov qauv. Cov refractory prefabricated feem yog sintered nyob rau ntawm tsawg kub, uas tuaj yeem nce ntxiv cov kev pabcuam lub neej ntawm Kiln hauv ob sab. Thaum qhov chaw ua haujlwm ua ntej ua ntej yog tsim, muaj cov hlau tuav tom qab uas tuaj yeem raug Welded ncaj qha rau lub cev hauv lub cev. Ntu tshuav welded nrog anchors, uas tuaj yeem raug tsav ncaj qha rau hauv cov zaub mov ua kom tsis txhob muaj pwm. Kev tsim kho yog yooj yim thiab lub sijhawm teeb tsa luv luv.
Tom qab lub cev kiln yog deformed, refractory cib tsis tuaj yeem siv rau Masonry; Tsuas yog cov khoom siv ua ke ntawm cov khoom siv ua ntej thiab cov khoom ua kom zoo dua tuaj yeem siv tau.
Cov khoom lag luam
1. Teb Kiln
Thaum ua alumina, ua ntej sib xyaw bauxite, sode tshauv thiab txiv qaub nyob rau hauv cov cilort thiab thauj lawv mus rau hauv lub cub, thiab tom qab ntawd} degree ua ntej coj lawv tawm ntawm lub kiln; Cov khoom noj tau cov txiaj ntsig yog crushed thiab loaded rau hauv lub siab-nqus pa, thiab tom qab ntawd desilicle sididue (piv txwv li decomposated, carbonated los tsim cov txhuas hydroxide thiab niam cawv; Aluminium hydroxide tau thauj khoom rau hauv lub cub qeeb thiab calcined ntawm qhov kub ntawm li 1200 degree los tsim alumina. Tsis ntev los no, qee lub tebchaws tau siv cov txhuv boilers rau cov bauxite calx, uas tuaj yeem tsim alumina.
Cov ntaub pua hauv lub teb chaws cub hluav taws yog feem ntau ua nrog high-alumina cib, thiab cov seem ntawm cov kab uas muaj av nplaum. Ib txheej ntawm refractory fiber ntau zoo li pw ze ntawm lub tshuab raj txheej ntawm txheej txheej, thiab tom qab ntawd ib txheej ntawm lub teeb ci ntsa iab lossis plhaw nrog cov txheej txheem refracteight refractab.
Refractory cov ntaub ntawv rau kev tsim cov alumina hydroxide yog thawj cov tsim khoom siv Boosite li ntawm qhov kub ntawm}}}}}}}}}}} degree kom tau alumina. Cov khoom siv thermal rau calcining Aluminium hydroxide feem ntau siv cov KILNs thiab Flash Roasters. Cov ntaub ntawv refractory rau kev teb cov roj av cub cub tau muab faib ua thaj chaw preheating, cheeb tsam txias. Qhov kub ua ntsuas kub ntawm qhov chaw tua hluav taws tsis siab dua 1200 degree. Tus qauv ntawm KILN rwb thaiv tsev txheej yog mus ua ntej txheej ntawm rwb thaiv tsev rauv taws, thiab tom qab ntawd siv cov pob zeb thaiv diat thiab lwm yam kev rwb thaiv tsev cib rau Masonry. Nws tseem tuaj yeem muab hliv rau ib qho uas yog ib qho yooj yim nrog cov khaub ncaws hnav hluav taws xob nrog lub ntim ntom ntom ntawm 0.8g / cm3. Cov txheej txheem ua haujlwm ntawm thaj chaw preheating yog tsim nrog cov av nplaum cib, thiab cov txheej txheem ua haujlwm ntawm cov pob zeb loj-aluminate los yog ntsev tsis muaj txiv ntoo loj. Cov txheej txheem ua haujlwm ntawm thaj chaw txias yog cov hnav zoo heev los ntawm cov ntaub ntawv rho tawm haujlwm. Ntxiv rau kev siv cov av nplaum me me rau Masonry, nws raug nquahu kom siv phosphate high-alumina tsis muaj txiaj ntsig rau Masonry.
2. Tshauv Kiln rau calcining roj av coke
Tebchaws Asmeskas, Nyij Pooj thiab lwm lub tebchaws siv cov tshuaj ntsuab uas tau tsim cov roj av, feem ntau}}}}}}}}}}} 106 kcal / Tuj Coke. Qee zaum cov kev kub siab tshaj plaws ntawm cov khoom siv tau siv rau cua sov, thiab tsis muaj roj siv; Kiln ob sab nrau yog hliv nrog refractory castables. Txhawm rau kom khov kho txuas nrog lub cub hluav taws thiab tiv thaiv nws kom tsis txhob poob thaum siv, hlau thauj tog rau nkoj cov ntsia hlau ntsia hlau rau, tab sis sab saum toj yuav tsum nyob deb ntawm qhov chaw ua haujlwm.
High-alumina refractory castables yog tsim nrog high-qib aluminent Maas, yog li lawv chav thaum ntxov lub zog thiab qhov kub ua tau zoo; Nyob rau tib lub sijhawm, vim hais tias corundum thiab alumina hollow cov khoom tau ntxiv rau cov khoom xyaw, cov haujlwm ua haujlwm tau hnav tsis kam, tsawg thermal condulation, thiab cov txiaj ntsig zoo rwb thaiv tsev. Ib qho ntxiv, ntawm txhua cov ntaub ntawv siv rau cov ntsiab lus ntawm cov hlau thiab cov hlau tsis muaj kev ua tau zoo ntawm cov khoom siv refractory. Vim tias hlau oxide tuaj yeem hnov mob nrog lwm cov neeg oxide hauv kev txo cov huab cua thiab thaum 500 degree los tsim ntim cov khoom siv, yog li ua kom nws lub neej pabcuam.
Raws li kev xyaum ntau lawm, lub Kiln Minrining rau cov roj ntsha ua kom pom cov ntaub ntawv saum toj no), thiab ntxiv cov khoom siv ua kom poob), thiab nws lub neej pabcuam feem ntau yog ib xyoos.
Kev tsim qauv ntawm lub teb chaws qeeb siv refractory casable prefabricated ntu
Lub Kiln qeeb ncas siv Refractory Castaber ua cov txheej txheem thawj coj, cov cement, ua kom muaj kev phom sij, ua kom muaj kev phom sij thiab lwm yam kev lag luam. Txawm hais tias nws muaj kev ua tau zoo thiab tsim nyog tus nqi ua tau zoo, yog hais tias nws ncaj qha rau hauv lub sijhawm qeeb, kev tsim kho ntev dua tom qab siv tsis yooj yim rau tus neeg siv lub teb chaws. Yog li ntawd, daim ntawv thov ntawm refractory casable prefabricated qhov chaw nyob rau teb cuv caj hlav yog qhov tseem ceeb.
Lub npe hu ua regractory uas ua tsis tau prefabricated, tseem hu ua prefabricated blocks, yog cov khoom siv cov duab ntawm amorphous refractory. Lawv tsis yog hlawv lossis maj mam hlawv cov khoom uas muaj kev ua tau zoo. Lawv yog cov khoom tshiab nrog kev loj hlob sai thiab dav.
Piv nrog cov ntaub ntawv tsis sib xws thiab rho tawm cov cib refractife tsim rau ntawm qhov chaw prefabricated muaj cov txiaj ntsig hauv qab no:
(1) Cov khoom prefabricated muaj qhov zoo ntawm qhov ntev sab nraud, kev ua tau ruaj khov, kev tsim kho ruaj khov, kev tsim kho luv luv thiab tus nqi qis. Lawv tsis tas yuav raug pov rau ntawm qhov chaw, tab sis tsuas yog xav tau sib sau ua ke, uas yooj yim lub cub ua txheej txheem. Piv nrog tua cov cib, Prefabricated ntu muaj cov txiaj ntsig siab, tsis tas yuav raug rho tawm haujlwm hauv lub zog, muaj cov nqi ntau lawm thiab ua tau zoo heev.
(2) Vim cov prefabricated qhov chaw tau ua tiav cov kauj ruam ntawm kev ua pov thawj, kho thiab muab cov khoom siv hloov dua siab tshiab thiab siv tus nqi ntawm cov cuab yeej siv.
(3) kev tsim kho tuaj yeem tsis cuam tshuam los ntawm cov txheej txheem ib puag ncig lossis cov xwm txheej raws caij nyoog.
Prefabricated thaiv tau faib raws li cov qauv sib txawv, suav nrog cov khoom ua ntej uas ua ntej ua ntej thiab cov khoom lag luam yas ua ntej; Prefabricated thaiv ua ke nrog aluminate xisas, iav dej, phosphoric acid thiab txhuas phosphate, av nplaum thiab cov cement qis; Prefabricated blocks tsim los ntawm kev co, kev co siab thiab ramming; loj, nruab nrab thiab me preabricated blocks; Cov khoom ua ntej prefabricated blocks, steel prefabricated blocks thiab thauj tog rau nkoj prefabricated blocks.
Txoj kev ua kom ua tiav cov qauv ua kom muaj txiaj ntsig zoo ntawm ntau qhov, uas yog "kev ua tau zoo dua qub thiab cov khoom lag luam zoo dua cov uas tau tsim los ntawm tshuab nias. Yog li ntawd, prefabricated feem tau dhau los ua kev sib txawv ntawm kev saib xyuas ntawm amorpepous cov khoom siv, thiab muaj kev txhim kho dav dav.
Tus qauv tsim thiab xaiv cov khoom ua ntej hauv lub ciln catn yuav tsum paub tias lub cev siv thiab siv lub hom phiaj zoo li cas, thiab ua tiav lub hom phiaj ntawm kev nce qib ntawm Kiln thiab cov khoom siv thermal. Raws li cov yam ntxwv ntawm lub Kiln teb nws tus kheej, qhov yooj yim ntawm cov qauv prefabricated yog raws li hauv qab no:
Ntawm lawv, sab hauv thiab sab nraud ntawm cov prefabricated feem sib txawv nyob ntawm lub Kiln qauv thiab qhov chaw ntawm kev siv. Qhov tuab ntawm cov prefabricated ntu yog qhov sib txawv ntawm sab hauv thiab sab nraud ntawm lub cub tawg tom qab lub cub tawg yog ua. Kev siv ib puag ncig ntawm lub teb chaws cub lub qhov ncauj thiab lub chaw tua hluav taws yog qhov sib txawv, yog li cov prefabricated ntu kuj tseem txawv, uas tau qhia raws li hauv qab no:
(1) Kiln qhov ncauj Prefabricated seem
Qhov ntsuas kub ntawm lub ceeb zeej lub qhov ncauj lub qhov ncauj hloov pauv ntawm 1100 degree thiab 1400 degree. Qhov ntsuas kub hloov siab heev, thiab lub tog raj kheej yooj yim heev rau deformic, uas ua rau cov khoom siv ua kom refractory ntawm lub qhov ncauj me me, thiab lub neej pabcuam yog luv heev. Yog li ntawd, qhov chaw ua haujlwm tom ntej ntawm lub qhov ncauj ua ntej yog tsim raws li hauv qab no: qhov chaw prectricated yog ib-kaum ntawm lub tog raj kheej, thiab cov tuab nyob ntawm lub vojvoog ntawm lub tog raj kheej. φ2020x40MM qhov yog punched ntawm ob tog ntawm prefabricated feem. Thaum lub sijhawm Masonry, ntxiv rau kev siv cov khoom siv tsis zoo, φ18x cov khoom siv tau los ua ke kom cov khoom ua ntej yog li qhov kev pabcuam kub ua ke kom cov khoom ua haujlwm ntawm cov ntaub ntawv thiab txhim kho kev ua haujlwm ntawm cov kiln.
(2) Cheeb Tsam Thaj Tsam
Xav txog qhov kub ntawm thaj chaw ua haujlwm, cov duab ntawm cov prefabricated ib feem yog txawv ntawm qhov ntawd ntawm lub qhov ncauj kiln. Lub ncig ntawm ib ncig ntawm prefabricated ib feem yog ib yim ntawm lub zog ntawm lub tog raj kheej, thiab cov tuab nyob ntawm lub vojvoog ntawm lub zog ntawm lub zog. Cov khoom ua ntej tau sib khi nrog cov av nkos refractory, thiab cov khoom ua ntej thiab lub tog raj kheej yog tsau nrog bolts. Ceev yog welded ntawm lub cev ntawm lub teb chaws cub, raws li qhia hauv daim duab hauv qab no. Rau rau lub tog thauj tog rau nkoj tau teeb tsa rau txhua qhov prefabricated feem raws li qhov loj me. Lub Nkoj Ntsia Hlau Cov Khoom Siv yog ua los ntawm φ10mm xov kab hlau, thiab qhov ntev ntawm lub thauj tog rau nkoj sib tw yog nruab nrab ntawm 1/2 thiab 2 ntawm cov tuab ntawm cov prefabricated ib feem. Cov ntsia liaj qhov rooj tau npog nrog cov av nkos ntsaws ntawm cov khoom qub uas yog cov khoom prefabricated thiab tsau rau refractory av nkos.
Tsis tas li ntawd, txhawm rau daws cov teeb meem ntawm cov kev nthuav dav sib txawv ntawm cov thawv asphalt thiab hais tias lub castators castis xim zaj duab xis, yog li ntawd cov khoom siv ua kom tawg ntawm cov khoom siv kub ntawm lub nkoj hauv lub xeev kub. Cov no yog txhua qhov txiaj ntsig los txhim kho lub zog tag nrho ntawm cov casabetle thiab adhesion lub zog ntawm cov khoom siv.
Khoom Taw Qhia
Castables thiab prefabricated seem rau high-kub aluminary Kilns, thiab xaiv cov hom phiaj ua haujlwm thiab xaiv lub hom phiaj ntawm kev nce lub neej ntawm cov khoom siv hluav taws xob thiab cov khoom siv thermal. Qhov tshiab prefabricated thaiv thiab cov txheej txheem tsim kho cov txheej txheem adopts ua ke ntawm cov khoom ua ntej thiab chaw ua haujlwm. Cov khoom ua ntej yog thawj peb welded hauv lub cub tawg ntawm cov sib nrug, thiab cov khoom ua ntej yog siv ua cov qauv rau kev ua pov thawj rau ntawm thaj chaw. Lub teb chaws cub ua ntej dhau los yog cov duab sib dhos, muaj txheej kub-resistant txheej thiab cov txheej kub-insulating txheej. Anchoring sab hauv qhov cuab yeej siv tau yog npaj rau hauv cov duab plaub ua ntej, thiab ob qho kawg ntawm cov dav hlau sab hauv qhov cuab yeej ntawm qhov dav ntawm cov prefabricated thaiv nto. Nws yog tus cwj pwm nyob rau hauv uas: sawb protrusions los yog grooves yog npaj rau ob tog ntawm sawb proterrusions lossis cov ntoo khaub lig yog arc-puab, los yog trapezoidal, lossis square.
Castables thiab prefabricated seem rau high-kub alumina, koob cokeary latural, txuag manpower, luv luv lub sijhawm tsim kho, thiab txhim kho kev ua haujlwm ntawm cov khoom siv thermal.
Khoom nta
Castabe thiab prefabricated seem rau high kub alumina, koob Cokal poob siab, thiab lwm yam Tshuaj lom neeg ua hauj lwm, thiab siab thauj softening kub.
|
Khoom Siv Khoom yam haujlwm |
HX-GM80 |
HX-GM75 |
HX-M70 |
HX-M65 |
Hx-D50 |
HX-D45 |
|
|
Al2O3% Ntau dua lossis sib npaug |
78 |
73 |
68 |
60 |
50 |
45 |
|
|
Bulk ntom (g / m³) |
2.80 |
2.70 |
2.65 |
2.55 |
2.35 |
2.30 |
|
|
Compressive lub zog: (MPa) ntau dua lossis sib npaug |
110 degree × 24h |
40 |
50 |
50 |
60 |
40 |
40 |
|
1100 degree × 3H 1300 degree × 3h |
80/100 |
70/120 |
70/100 |
90/100 |
60 |
60 |
|
|
1500 degree × 3h |
120 |
120 |
100 |
/ |
/ |
/ |
|
|
FLEXURAL LUB ZOG: (MPA) ntau dua los yog sib npaug |
110 degree × 24h |
6 |
8 |
8 |
6 |
6 |
6 |
|
1100 degree × 3h |
10 |
10 |
12 |
10 |
8 |
8 |
|
|
1500 degree × 3h |
14 |
14 |
14 |
/ |
/ |
/ |
|
|
1300 degree × 3h kab hloov pauv% |
±0.3 |
±0.5 |
±0.5 |
±0.5 |
±0.5 |
±0.5 |
|
|
Kev Siv Ntev Ntev |
1550 |
1500 |
1450 |
1400 |
1350 |
Kua qaub thiab alkali tsis kam 1300 |
|
Cim npe nrov: Casting cov ntaub ntawv thiab prefabricated seem rau qhov kub alumina, koob CEKE QAIB KILN, kev ua haujlwm sib txuas, thiab lwm yam khoom siv, Hoobkas