1. Txhim kho cov khoom ntawm magnesia-chrome cib nyob rau hauv qhov muag
Covmagnesia chrome cibnyob rau hauv lub qhov muag cheeb tsam yuav tsum tau muaj zog tiv taus kub, yaig, tshuaj corrosion, cuam tshuam thiab kev co. Yog li ntawd, lub qhov muag cib thiab daim duab peb sab cib nyob rau hauv lub qhov muag cheeb tsam yog hloov los ntawm thawj fused 20 magnesia-chrome cib (DMGe-20) mus rau fused 26 magnesium chrome cib (DMGe-26).
Cov ntsiab lus ntawm chromium oxide (Cr2O3) nyob rau hauv magnesia-chrome cib nce, uas txhim kho kev tiv thaiv kev yaig ntawm magnesia-chrome cib thiab ua kom qeeb ntawm kev ntxuav ceev ntawm magnesia-chrome cib thaum siv. Nyob rau tib lub sijhawm, qhov porosity ntawm DMGe-26 magnesia-chrome cib tau txo qis, txo qhov tob ntawm slag yaig thiab hlau nkag, ua rau luv luv txheej txheej metamorphic ntawm magnesia-chrome cib (qhov ntev ntawm cov txheej txheem metamorphic. yog luv los ntawm li 10mm), txo qhov ntev spalling ntawm refractory bricks, thiab slowing down tus nqi ntawm tuyere cib.
2. Ua tib zoo tswj xyuas qhov zoo
2.1 Mechanical yam
(1) Thaum kho lub rooj zaum tuyere thiab lub rooj zaum tee, zom lub rooj zaum saum npoo kom ntseeg tau tias qhov flatness ntawm lub rooj zaum saum npoo. Siv cov bolts los tiv thaiv thaum lub sij hawm installation, thiab hloov cov asbestos zoo tib yam ncoo nrog txhuas-coated asbestos ncoo los xyuas kom meej tias tsis muaj huab cua qhov sib txawv ntawm lub rooj zaum tuyere thiab lub rooj zaum tee.
(2) Ua ib tug tuyere yeeb nkab hloov template, siv lub template los xaiv ob tuyere kav raws li calibration siv, lub tuyere yeeb nkab chaw nyob deb tom qab calibration yuav tsum tau raws li qhov yuav tsum tau ntawm tuyere cib masonry, thiab weld lub tuyere yeeb nkab thiab lub tes tsho tuyere khov kho.
(3) Tom qab cov yeeb nkab tuyere tau muab tso rau hauv qhov chaw, ntsaws lub qhov ncauj tuyere yeeb nkab nrog lub ntsaws, pib lub kiv cua GM los muab cua rau lub converter, thiab tuav cov cua siab mus rau lub zog ntau lawm ntawm lub converter (txog {{1 }}.1MPa), xyuas cov pa tawm ntawm lub hauv siab thiab cov ntsiab lus sib txuas tuyere, thiab cuam tshuam nrog cov ntsiab lus ntawm cov pa tawm hauv lub sijhawm kom tsis txhob muaj cua tsis txaus vim huab cua to, uas yuav ua rau tuyere sab hauv. yeeb nkab thiab thaj chaw tuyere yuav tsum tau ntxuav sai heev.
2.2 Rauv masonry
(1) Lub qhov muag ci ci tau muab tso rau ntawm nruab nrab mus rau ob qho kawg. Tom qab tso, pem hauv ntej thiab nraub qaum ntawm lub qhov muag cib yog polished kom tsis txhob muaj daim duab peb sab seams hauv qee qhov chaw.
(2) Cov cib square los ntawm lub qhov muag cib mus rau lub qhov cub hluav taws xob sab saud tau muab tso rau raws li qhov yuav tsum tau ua kom txo qis qhov siab qhov sib txawv ntawm cov txheej cib nyob rau hauv qhov kev hloov pauv ntawm qhov thim rov qab thiab txo qis tus nqi ntawm qhov kev hloov pauv ntawm qhov cub cib.
(3) Lub mortar nyob rau hauv lub cib pob qij txha yog tag nrho thiab uniform, zoo ib yam nyob rau hauv thiab sab nraud, lub magnesia chrome cib pob qij txha ntawm lub interface ntawm cov tshiab thiab qub cib yog tsawg tshaj li 3 hli, qhov dav ntawm cov txheej txheem cib tsis tsawg tshaj li 1/ 2 ntawm nws tus kheej dav, thiab lub thickness tsis tsawg tshaj li 2/3 ntawm nws tus kheej thickness. (4) Thaum tso lub qhov cub rau sab sauv thiab sab qis, cov ntawv hlau yog welded rau ntawm lub qhov cub lub qhov ncauj txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm
3. Txheem lub tshuab ziab khaub ncaws kom qhuav
Txhim kho qhov cub kom qhuav specifications rau kev kho me me converter. Siv ntoo thiab roj phom kom qhuav lub qhov cub hauv theem. nruj me ntsis tswj qhov kub nce raws li lub cua sov nkhaus kom paub meej tias lub cub tawg kub deviates los ntawm theoretical cua sov nkhaus tsis ntau tshaj 50 degree. Xyuas kom meej tias qhov thermal expansion ntawm cov khoom siv refractory ua tau raws li cov khoom xav tau thiab zam kev puas tsuaj rau cov cib refractory los ntawm kev hloov pauv loj hauv qhov cub kub.
4. Txhim kho kev ua haujlwm ntau lawm
(1) Tsim cov qauv rau kev ntxiv cov khoom txias los tiv thaiv qhov cub kub kom tsis txhob siab dhau; stabilize thiab tswj cov qib matte, tsim cov qauv rau tus nqi ntawm matte rau ib lub cub tawg kom tsis txhob muaj kev hloov pauv loj ntawm cov matte thiab ntxuav lub cub tawg cib, thiab nruj me ntsis tswj cov zis ntawm ib lub cub tawg.
(2) Tsim nyog ua kom cov alkalinity ntawm cov slag thaum lub sij hawm slagging, kom cov hlau nplaum sib nqus yog tsim nyob rau hauv lub cub tawg thiab adheres rau lub cub tawg phab ntsa, tsim "hanging slag" nyob rau hauv lub cub tawg los tiv thaiv lub cub tawg magnesia chrome cib.
(3) Nyob rau hauv converter ntau lawm, oxygen yuav tsum tau muab tua ua ntej co lub cub tawg kom qeeb oxidation poob ntawm oxygen-enriched cua rau tuyere.
