Calcined coke yog ib hom carburizer thiab roj av coke ntawm ntau yam specifications.
Lub ntsiab specifications ntawm graphite khoom yog 150-￠1578 thiab lwm yam qauv. Nws yog qhov tseem ceeb rau cov tuam txhab hlau thiab hlau, kev lag luam silicon polysilicon cov lag luam, cov lag luam emery, aerospace cov ntaub ntawv kev lag luam thiab lwm yam khoom.
1: Petroleum Coke
Petroleum coke yog cov khoom siv roj av dub lossis tsaus grey tawv tawv nrog cov xim hlau nplaum thiab yog ntxeem tau. Nws yog granular, columnar, lossis koob zoo li cov khoom siv carbonaceous uas muaj cov khoom siv microscopic graphite crystals.
Petroleum coke muaj hydrocarbons, 90-97% carbon, 1.5-8% hydrogen, nitrogen, chlorine, sulfur, thiab hnyav hlau compounds.
Petroleum coke yog cov khoom los ntawm pyrolysis ntawm cov roj nyoos hauv chav coking qeeb los tsim cov roj teeb ntawm qhov kub thiab txias.
Cov zis ntawm roj av coke yog li 25-30% ntawm cov roj nyoos.
Nws tus nqi qis calorific yog kwv yees li 1.5-2 zaug ntawm cov thee, cov hmoov tshauv tsis ntau tshaj 0.5%, cov ntsiab lus tsis hloov pauv yog li 11%, thiab nws qhov zoo yog ze rau anthracite.
2: Cov qauv zoo ntawm cov roj av coke Kev ncua roj av coke yog hais txog cov coke uas ua los ntawm cov coking qeeb, tseem hu ua coke zoo tib yam, tsis muaj tus qauv ##.
Tam sim no, cov tuam txhab tsim khoom hauv tsev feem ntau tsim raws li kev lag luam tus qauv SH0527-92 tsim los ntawm Tuam Tshoj Petrochemical Corporation yav dhau los.
Tus qauv feem ntau yog cais raws li cov ntsiab lus ntawm sulfur ntawm roj av coke.
No. 1 coke yog tsim los ua lub zog zoo tib yam graphite electrode hauv steelmaking kev lag luam, thiab kuj siv los ua carbon rau txhuas refining.
No. 2 coke yog siv rau electrode paste thiab graphite electrode ntau lawm nyob rau hauv electrolytic cell (lub cub tawg) nyob rau hauv txhuas smelting kev lag luam
No. 3 coke yog siv nyob rau hauv zus tau tej cov silicon carbide (sib tsoo cov khoom) thiab calcium carbide (calcium carbide), raws li zoo raws li lwm yam carbon cov khoom, raws li zoo raws li nyob rau hauv zus tau tej cov anode blocks rau txhuas smelter thiab nyob rau hauv kev tsim kho cov pa roj carbon ob sab phlu. cib los yog lub cub tawg hauv qab hauv qhov cub tawg.
3: Lub ntsiab USES roj av coke
Lub ntsiab USES roj av coke yog ua ntej ci anode thiab anode muab tshuaj txhuam rau electrolytic aluminium, carbon ntau lawm ntawm carbonizing tus neeg sawv cev, graphite electrode, smelting industrial silicon thiab roj, thiab lwm yam.
Raws li cov qauv thiab cov tsos ntawm roj av coke, cov khoom siv roj av coke tuaj yeem muab faib ua rab koob coke, daim txhuam cev coke, projectile coke thiab hmoov coke:
(1) koob-zoo li tus coke, nrog pom tseeb koob zoo li qauv thiab fiber ntau zoo nkauj, yog tsuas yog siv raws li high-power graphite electrode thiab ultra-high-power graphite electrode nyob rau hauv steelmaking.
Vim tias rab koob coke muaj qhov ua tau zoo ntawm cov ntsiab lus ntawm cov sulfur, cov ntsiab lus ntawm cov hmoov tshauv, cov ntsiab lus tsis muaj zog thiab qhov ntom ntom, muaj cov kev cai tshwj xeeb ntawm cov cuab yeej siv thiab cov khoom siv raw ntawm rab koob coke.
(2) Daim txhuam cev coke, nrog cov tshuaj lom neeg muaj zog thiab cov ntsiab lus tsis zoo, feem ntau yog siv hauv kev lag luam aluminium smelting thiab carbon kev lag luam.
(3) Projectile coke lossis spherical coke: nws yog spherical nyob rau hauv cov duab thiab 0.6-30mm inch. Nws feem ntau yog tsim los ntawm high-sulfur thiab high-asphaltene residue thiab tsuas yog siv tau rau kev tsim hluav taws xob, cement thiab lwm yam kev lag luam roj.
(4) hmoov coke: nws yog tsim los ntawm fluidized coking txheej txheem nrog zoo hais (inch: 0.1-0.4mm), siab volatilization cov ntsiab lus thiab siab thermal expansion coefficient, yog li nws tsis tuaj yeem siv ncaj qha rau hauv kev npaj electrode thiab carbon kev lag luam.
4: Calcined roj av coke
Thaum cov graphite electrode rau steelmaking los yog anode muab tshuaj txhuam (melting electrode) rau txhuas thiab magnesium, thiaj li yuav ua rau roj av coke (coke) ua tau raws li qhov yuav tsum tau, cov coke yuav tsum tau calcined.
Qhov kub ntawm calcining feem ntau yog nyob ib ncig ntawm 1300 ℃, lub hom phiaj yog kom tshem tawm cov naphthol coke volatilization kom deb li deb tau.
Nyob rau hauv txoj kev no, cov ntsiab lus hydrogen ntawm cov roj av coke tuaj yeem txo qis, qhov graphitization degree ntawm roj av coke tuaj yeem txhim kho, lub zog kub thiab kub tsis kam ntawm graphite electrode tuaj yeem txhim kho, thiab hluav taws xob conductivity ntawm graphite electrode tuaj yeem txhim kho. .
Calcining feem ntau yog siv los tsim graphite electrode, carbon paste khoom, Pob zeb diamond xuab zeb, zaub mov qib phosphorus kev lag luam, metallurgical kev lag luam thiab calcium carbide, ntawm cov graphite electrode yog dav siv.
Coke tsis muaj forging tuaj yeem siv ncaj qha raws li calcium carbide, silicon carbide thiab boron carbide ua cov khoom sib tsoo.
Nws tseem tuaj yeem siv ncaj qha los ua coke rau metallurgical kev lag luam moj tej tawg rauv los yog moj tej tawg rauv hauv ob sab phlu carbon cib, kuj yuav siv tau rau casting txheej txheem compact coke, thiab lwm yam.
Post lub sij hawm: Nov-20-2020