Calcined coke rudzi rwecarburizer uye petroleum coke ine hunyanzvi hwakasiyana.
Zvinonyanya kukosha zvezvigadzirwa zvegrafiti ndeizvi: 150-1578 nedzimwe mhando. Zvakakosha kumabhizinesi esimbi nesimbi, maindasitiri esilicon polysilicon, mabhizinesi eemery, maindasitiri ezvemuchadenga nezvimwe zvigadzirwa.
1: Koka yepetroleum
Petroleum coke chigadzirwa chepetroleum chakaoma kana chakasviba chine grey ine kupenya kwesimbi uye chine maburi. Chinhu chakaita se granular, columnar, kana kuti chakaita se carbonaceous chakagadzirwa nemakristaro e graphite asingaonekwe.
Petroleum coke ine mahydrocarbon, 90-97% kabhoni, 1.5-8% hydrogen, nitrogen, chlorine, sarufa, uye heavy metal compounds.
Petroleum coke ndiyo inobva mukupiswa kwemafuta asina kubikwa muchikamu che coking chinononoka kuti chigadzire mafuta akareruka pakupisa kwakanyanya.
Kubuda kwepetroleum coke kunosvika 25-30% yemafuta asina kubikwa.
Kukosha kwayo kwakaderera kwemafuta emuorivhi kunosvika ka1.5-2 kupfuura marasha, huwandu hwedota hahupfuuri 0.5%, huwandu hwemvura inoshanduka hunosvika 11%, uye hunhu hwayo hwakafanana neanthracite.
2: Mwero wemhando yepamusoro we petroleum coke. Delay petroleum coke inoreva coke inogadzirwa ne delayed coking unit, inozivikanwawo se ordinary coke, hapana mwero unoenderana nayo.
Parizvino, makambani ekugadzira zvinhu zvemumba anonyanya kugadzira zvinhu zvinoenderana nechiyero cheindasitiri cheSH0527-92 chakagadzirwa nekambani yaimbova China Petrochemical Corporation.
Mutemo uyu unonyanya kurongwa zvichienderana nehuwandu hwesarufa mupetroleum coke.
Koke nhamba 1 yakakodzera kugadzira electrode yemagetsi egrafiti muindasitiri yekugadzira simbi, uye inoshandiswawo sekabhoni pakuchenesa aruminiyamu.
Koke nhamba 2 inoshandiswa pakugadzira maelectrode paste negrafiti electrode mu electrolytic cell (furnace) muindasitiri yekunyungudutsa aruminiyamu.
Nhamba 3 coke inoshandiswa mukugadzira silicon carbide (zvinhu zvekukuya) uye calcium carbide (calcium carbide), pamwe nezvimwe zvigadzirwa zvekabhoni, pamwe nekugadzira anode blocks yealuminium smelter uye mukuvaka zvidhinha zvecarbon lining kana furnace pasi mu blast furnace.
3: KUSHANDISWA kukuru kwepetroleum coke
MASHANDISIRO makuru epetroleum coke ndeye anode yakabikwa kare uye anode paste ye electrolytic aluminum, kugadzirwa kwecarbonizing agent, graphite electrode, smelting industrial silicon nemafuta, nezvimwewo.
Zvichienderana nechimiro uye chitarisiko chepetroleum coke, zvigadzirwa zvepetroleum coke zvinogona kukamurwa kuita needle coke, sponge coke, projectile coke uye powder coke:
(1) Coke yakaita setsono, ine chimiro chakafanana netsono uye magadzirirwo efiber, inonyanya kushandiswa se graphite electrode ine simba guru uye graphite electrode ine simba guru mukugadzira simbi.
Nekuti needle coke ine zvinodiwa zvakanyanya zvemhando yepamusoro muhuwandu hwesarufa, huwandu hwedota, huwandu hwezvinhu zvinoputika uye huwandu hwechokwadi hwezvinhu, pane zvinodiwa zvakakosha pahunyanzvi hwekugadzira uye zvinhu zve needle coke.
(2) Sponge coke, ine reactivity yakawanda yemakemikari uye ine huwandu hushoma hwekusvibiswa, inonyanya kushandiswa muindasitiri yekunyungudutsa aruminiyamu uye indasitiri yekabhoni.
(3) Koke inobuda kana kuti koke yakatenderera: ine chimiro chedenderedzwa uye dhayamita ye 0.6-30mm. Inowanzo gadzirwa kubva muzvimedu zvine sarufa yakawanda uye zvine asphaltene yakawanda uye inogona kushandiswa chete kugadzira magetsi, simende nemamwe mafuta emumaindasitiri.
(4) Powder coke: inogadzirwa ne fluidized coking process ine zvidimbu zvidiki (dhayamita: 0.1-0.4mm), high volatilization content uye high thermal expansion coefficient, saka haigone kushandiswa zvakananga mukugadzira ma electrode uye carbon industry.
4: Koke ine calcium yakawanda
Kana graphite electrode yekugadzira simbi kana anode paste (electrode inonyungudutsa) yearuminiyamu nemagnesium, kuti petroleum coke (coke) iite zvinodiwa, coke inofanira kupiswa necalcium.
Tembiricha ye calcining inowanzoita 1300℃, chinangwa chayo ndechekubvisa naphthol coke volatilization zvakanyanya sezvinobvira.
Nenzira iyi, huwandu hwehydrogen muzviwanikwa zvepetroleum coke hunogona kuderedzwa, mwero wegraphitization wepetroleum coke unogona kuvandudzwa, simba rekupisa kwepamusoro uye kuramba kupisa kwegraphite electrode kunogona kuvandudzwa, uye kufambisa magetsi kwegraphite electrode kunogona kuvandudzwa.
Calcined inonyanya kushandiswa kugadzira graphite electrode, zvigadzirwa zve carbon paste, jecha redhaimani, indasitiri ye phosphorus yemhando yechikafu, indasitiri yesimbi uye calcium carbide, pakati payo graphite electrode inoshandiswa zvakanyanya.
Coke isina forging inogona kushandiswa zvakananga se calcium carbide, silicon carbide uye boron carbide sezvinhu zvekukuya.
Inogona zvakare kushandiswa zvakananga se coke yesimbi yeindasitiri yesimbi inoputika kana kuputika kwechoto chinopisa chinodzivirira kabhoni, inogonawo kushandiswa pakukanda process compact coke, nezvimwewo.
Nguva yekutumira: Mbudzi-20-2020