Tus neeg saib xyuas cov nroj tsuag refractory hauv qaib ntxhw hu rau peb thaum Lub Ib Hlis nrog cov lus tsis txaus siab uas peb hnov ntau zaus: "Peb yuav 200 tons ntawm DBM-95 ntawm qhov zoo li tus nqi zoo. Thawj cov khoom xa tuaj zoo. Qhov thib ob xa khoom, tib tus neeg xa khoom, tib yam spec - MgO kuaj ntawm 93.8%. Tam sim no peb tuav lub thawv khoom peb siv tsis tau. "
Tuag hlawv magnesiayog ib qho ntawm cov khoom siv raw uas tus nqi sib kis ntawm cov qib yog nqaim txaus uas qhov kev poob qis zoo li kev ntxias, tab sis tus nqi qis ntawm kev siv qib tsis raug yog loj heev. Ib qho yooj yim cib cog ua haujlwm DBM-95 hauv kab magnesia-carbon tsis tuaj yeem nqus tau ib pawg uas ntsuas qis dua 94% MgO yam tsis muaj cov cib ua tsis tau zoo. Thiab thaum cov khoom sib xyaw rau hauv kev tsim khoom, tsis muaj txoj hauv kev los rub nws rov qab.
Kab lus no piav qhia txog dab tsi ua rau DBM tus nqi, yuav ua li cas txheeb xyuas cov qib koj tau txais, thiab qhov hloov pauv hauv Tuam Tshoj cov khoom lag luam xyoo dhau los.
DBM vs Fused Magnesia vs Caustic Calcined Magnesia
Tsis yog txhua tus magnesia zoo ib yam. Peb hom tseem ceeb ua rau kev lag luam sib txawv kiag li, thiab tus nqi sib txawv muaj kev cuam tshuam cov nqi hluav taws xob ntau lawm.
Caustic Calcined Magnesia (CCM)yog tsim los ntawm calcining magnesite ntawm 700-1000℃. Nws khaws cov tshuaj reactivity, uas ua rau nws muaj txiaj ntsig zoo rau cov chiv, tsiaj pub, thiab kev kho dej - tsis yog rau refractory cib tsim. CCM yog qhov pheej yig tshaj ntawm peb, feem ntau ua lag luam zoo hauv qab DBM tus nqi.
Tuag hlawv magnesia(DBM)yog calcined ntawm 1600-1800℃nyob rau hauv ib tug teb los yog ncej kiln. Qhov kub siab no - kub hnyiab tawm yuav luag tag nrho CO₂ thiab ua rau cov qauv siv lead ua me me, ua rau cov khoom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom. Cov pob zeb periclase tau loj hlob txaus uas cov khoom tiv thaiv hydration - koj tuaj yeem khaws DBM hauv lub tsev khaws khoom yam tsis muaj nws cuam tshuam nrog ambient noo noo. Qhov no yog tus qauv raw khoom rau magnesia-raws li refractory bricks, ramming masses, thiab phom sib tov.
Fused Magnesia (FM)mus ib kauj ruam ntxiv: cov magnesite yog melted nyob rau hauv ib tug hluav taws xob arc rauv ntawm tshaj 2800 degree. Lub resulting ingot yog crushed thiab me me mus rau hauv ntom, loj - siv lead ua nplej nrog zero - xoom porosity. FM tus nqi 2-3 × ntau dua DBM thiab yog siv rau hauv cov nplua nuj magnesia-carbon cib rau cov kab slag thiab lwm qhov chaw pabcuam huab cua.
Rau cov txheej txheem magnesia cib ntau lawm - ladle bricks, EAF cib, yooj yim ramming mixes - DBM yog lub workhorse. FM yog tshwj tseg rau cov ntawv thov uas lub cib ntsib ncaj qha molten slag tiv tauj ntawm qhov kub siab tshaj.
MgO 90, 92, 94, 95, 96, thiab 97 txhais tau li cas
Qhov feem pua MgO ntawm DBM cov lus qhia tshwj xeeb yog qhov taw qhia thawj, tab sis nws tsis yog ib qho tseem ceeb. Nov yog yuav ua li cas cov qhab nia cuam tshuam los ntawm daim ntawv thov raug:
| Qib | MgO Min | SiO₂ Max | CaO Max | Fe₂O₃ Max | Kev ceev ceev | Daim ntawv thov |
|---|---|---|---|---|---|---|
| DBM-90 | 90% | 4.5% | 2.5% | 1.5% | Ntau dua lossis sib npaug li 3.15 g / cm³ | General -lub hom phiaj ramming loj, qis- nqi magnesia bricks |
| DBM-92 | 92% | 3.5% | 2.0% | 1.2% | Ntau dua lossis sib npaug li 3.18 g / cm³ | Txheem magnesia cib, EAF hauv qab ramming |
| DBM-94 | 94% | 2.5% | 1.8% | 1.0% | Ntau dua lossis sib npaug li 3.20 g / cm³ | Nruab nrab-ntau yam magnesia-carbon cib, ladle kev ruaj ntseg hauv ob sab phlu |
| DBM-95 | 95% | 2.0% | 1.5% | 0.8% | Ntau dua lossis sib npaug li 3.22 g / cm³ | Zoo magnesia-carbon cib rau ladle ua hauj lwm hauv ob sab phlu |
| DBM-96 | 96% | 1.5% | 1.2% | 0.6% | Ntau dua lossis sib npaug li 3.25 g / cm³ | High-qib MgO-C cib, slag kab siv |
| DBM-97 | 97% | 1.0% | 1.0% | 0.5% | Ntau dua lossis sib npaug li 3.28 g / cm³ | Hwm MgO-C cib, kev pabcuam hnyav, xa tawm-qib cib |
Tus naj npawb loj loj yog ib qho tseem ceeb raws li MgO feem pua. A DBM-95 nrog 3.22 g / cm³ ceev yuav tsim cov cib nrog qis porosity dua li DBM-95 ntawm 3.18 g / cm³ - txawm tias ob leeg thov tib qib MgO. Qhov sib txawv los ntawm qhov cub ua haujlwm li cas: qhov kub ntawm calcination ntau dua, lub sij hawm nyob ntev dua, thiab xaiv cov magnesite zoo dua txhua qhov thawb kom ceev.
Dab tsi Tsav DBM Tus Nqi Them Xyoo 2026
DBM tus nqi hauv Suav teb txav ntawm plaub qib:
1. Raw magnesite zoo thiab muaj.Tuam Tshoj cov magnesite reserves yog concentrated nyob rau hauv Liaoning xeev - tshwj xeeb yog Haicheng, Dashiqiao, thiab ib puag ncig. Thaum Liaoning nruj mining tso cai los yog tswj xyuas ib puag ncig, DBM cov khoom nruj me ntsis thoob plaws lub khw. Qhov no tau tshwm sim ob peb zaug ntawm 2020 thiab 2025 thiab tseem yog qhov rov tshwm sim dua.
2. Cov nqi hluav taws xob.Lub qhov cub hluav taws kub kub ntawm 1700℃siv roj ntau heev - thee, natural gas, lossis roj hnyav nyob ntawm cov nroj tsuag. Thaum cov nqi hluav taws xob hauv tsev nce, DBM cov nqi tsim khoom raws li. Cov nroj tsuag uas hloov los ntawm cov thee mus rau natural gas nyob rau hauv ib puag ncig siab pom lawv ib tug - tuj nqi ntau lawm, uas tau dhau mus rau FOB nqi.
3. Qib hwm.Txhua kauj ruam nce MgO ntaiv ntxiv tus nqi. Kev dhia los ntawm DBM-90 mus rau DBM-95 yog qhov tseem ceeb tab sis linear. Qhov dhia ntawm DBM-95 mus rau DBM-97 yog steeper vim hais tias nws yuav tsum tau ntau dua-purity magnesite feedstock thiab tighter kiln tswj. DBM-97 feem ntau hais kom muaj txiaj ntsig zoo tshaj DBM-95.
4. Kev thauj mus los thiab ntim khoom.DBM nkoj los ntawm Liaoning mus rau cov chaw nres nkoj xa tawm (feem ntau yog Dalian lossis Yingkou) los ntawm tsheb thauj khoom, tom qab ntawd los ntawm lub thawv ntim khoom. Jumbo hnab (1-1.5 MT) yog tus qauv rau kev xa tawm; me me 25 kg lossis 50 kg hnab ntxiv cov nqi ntim tab sis yooj yim dua los tuav ntawm qhov chaw. Cov nqi thauj khoom thauj mus rau Middle East, South Asia, thiab Africa hloov pauv raws caij nyoog thiab cuam tshuam rau tus nqi CFR txawm tias FOB tus nqi ruaj khov.
Yuav Ua Li Cas Txheeb Xyuas Yam Koj Yuav Tsum Tau tiag tiag
COA (Certificate of Analysis) los ntawm tus neeg muag khoom yog qhov pib. Nov yog yuav ua li cas kom paub tseeb tias nws cuam tshuam qhov tseeb:
Thov ib daim ntawv qhia thib peb ntawm - tog lab.SGS, Intertek, lossis Bureau Veritas tuaj yeem kuaj tus qauv tiv thaiv qib uas tau thov. Yog tias koj tus neeg muag khoom tsis tau muaj qhov kev xeem thib peb tsis ntev los no - tog, hais kom lawv npaj ib qho ua ntej koj cog lus rau lub thawv ntim khoom.
Ntsuam xyuas qhov ntom ntom ntawm koj tus kheej.Nws yog ib qho ntawm cov kev kuaj xyuas yooj yim tshaj - ntsuas qhov paub qhov ntim ntawm DBM nplej thiab suav. If the bulk density comes in below the grade specification, the MgO is probably low too.
Kos CaO/SiO₂ ratio.Ib tug zoo DBM batch muaj CaO/SiO₂ piv saum 2: 1. Hauv qab no, qis dua -melting- taw tes silicate theem hauv cib kawg, uas txo qhov kub lub zog. COA nrog CaO 2.5% thiab SiO₂ 4.0% (qhov sib piv 0.625) yog cov khoom sib txawv ntawm ib qho nrog CaO 1.5% thiab SiO₂ 2.0% ( piv 0.75) - txawm tias ob leeg hais DBM-94.
Qauv ua ntej bulk.Cov tuam txhab tsim khoom raug cai thiab ntev - tsim cov tuam txhab lag luam yuav xa 1-2 kg ntawm cov qauv los ntawm huab cua xa mus rau koj lub chaw kuaj sim. Yog tias tus neeg muag khoom tsis kam xa cov qauv yam tsis muaj daim ntawv xaj khoom, nrhiav lwm tus neeg muag khoom.
Tau txais tus nqi DBM tam sim no
Tus nqi DBM tau hais ib metric tuj, FOB Dalian lossis Yingkou, hauv USD. Tus lej pes tsawg txav nrog cov khoom siv raw thiab lub zog ua lag luam, yog li txhua tus nqi luam tawm hauv ib tsab xov xwm yog stale los ntawm lub sijhawm koj nyeem.
Dab tsi nyob ib puag ncig yog cov qauv qib: DBM-90 yog lub hauv paus, DBM-95 sawv cev rau qib kev lag luam feem ntau rau kev tsim cov cib refractory, thiab DBM-97 hais kom muaj txiaj ntsig zoo rau kev siv high-end magnesia-carbon cib.
Rau qhov kev tsocai FOB tam sim no ntawm txhua qib DBM, nrog rau COA thiab thib peb -toj xeem tsab ntawv ceeb toom, hu ncaj qha rau peb. Peb muab cov hlau nplaum tuag hlawv nrog rau peb cov khoom tiav refractory - txhais tau tias peb yog cov neeg siv khoom ntawm DBM peb tus kheej, tsis yog tus muag khoom xwb. Peb paub tias cov khoom zoo yuav tsum zoo li cas vim peb ua cib nrog nws.
Tiv tauj peb ntawminquiry@topower.techlos yog WhatsApp +86 191 5332 7338.Shandong Topower Pte Ltd (TP-Refractory) - 23 xyoo, ISO 9001 / TÜV / SGS / Intertek tau ntawv pov thawj, 60,000 MT / xyoo muaj peev xwm, muab cov khoom siv refractory thiab raw khoom rau 300+ cov neeg siv khoom hauv 50+ lub teb chaws.
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Tuag hlawv Magnesia piav qhia: Vim li cas DBM yog qhov tseem ceeb rau siab -Tub kub Refractories
