Calcined coke ndi mtundu wa carburizer ndi petroleum coke wamitundu yosiyanasiyana.
Zofunikira zazikulu zazinthu za graphite ndi ￠150-￠1578 ndi mitundu ina. Ndiwofunika kwambiri mabizinesi achitsulo ndi zitsulo, mabizinesi a silicon polysilicon, mabizinesi a emery, makampani opanga zinthu zakuthambo ndi zinthu zina.
1: Mafuta a kokonati
Petroleum coke ndi chinthu chakuda kapena chotuwa cholimba cholimba chamafuta chokhala ndi zitsulo zonyezimira ndipo chimakhala ndi porous. Ndi granular, columnar, kapena singano ngati carbonaceous zinthu zopangidwa ndi microscopic graphite makhiristo.
Mafuta a coke amakhala ndi ma hydrocarbon, 90-97% carbon, 1.5-8% haidrojeni, nayitrogeni, klorini, sulfure, ndi mankhwala a heavy metal.
Petroleum coke ndi mankhwala opangidwa ndi pyrolysis ya mafuta aiwisi mu kuchedwa coking unit kupanga mafuta kuwala pa kutentha kwambiri.
Kutulutsa kwa petroleum coke ndi pafupifupi 25-30% ya mafuta osaphika.
Mtengo wake wochepa wa calorific uli pafupifupi 1.5-2 nthawi za malasha, phulusa siliposa 0,5%, zosasunthika zimakhala pafupifupi 11%, ndipo khalidwe lake lili pafupi ndi anthracite.
2: Muyezo wamtengo wapatali wa mafuta a coke Kuchedwa kwa petroleum coke kumatanthawuza coke opangidwa ndi kuchedwa coking unit, wotchedwanso coke wamba, palibe lolingana ## muyezo.
Pakadali pano, mabizinesi opanga zoweta amatulutsa molingana ndi muyezo wamakampani SH0527-92 wopangidwa ndi omwe kale anali China Petrochemical Corporation.
Muyezo umayikidwa makamaka malinga ndi sulfure zomwe zili mu petroleum coke.
No. 1 coke ndi oyenera kupanga wamba mphamvu graphite elekitirodi mu steelmaking makampani, komanso ntchito ngati mpweya woyenga zotayidwa.
No. 2 coke ntchito electrode phala ndi graphite elekitirodi kupanga mu electrolytic selo (ng'anjo) mu zotayidwa smelting makampani.
No. 3 coke imagwiritsidwa ntchito popanga silicon carbide (pokupera zinthu) ndi calcium carbide (calcium carbide), komanso zinthu zina za carbon, komanso kupanga midadada ya anode ya smelter ya aluminiyamu komanso pomanga kaboni. njerwa kapena ng'anjo pansi mu ng'anjo yophulika.
3: NTCHITO zazikulu za petroleum coke
ZOTHANDIZA zazikulu za petroleum coke ndizophika kale anode ndi anode phala la aluminiyamu ya electrolytic, kupanga mpweya wa carbonizing agent, graphite elekitirodi, kusungunula silicon yamafakitale ndi mafuta, etc.
Malinga ndi kapangidwe ndi mawonekedwe a petroleum coke, mafuta a petroleum coke amatha kugawidwa mu singano coke, siponji coke, projectile coke ndi ufa coke:
(1) Coke yooneka ngati singano, yokhala ndi mawonekedwe owoneka ngati singano ndi kapangidwe ka fiber, imagwiritsidwa ntchito makamaka ngati elekitirodi ya graphite yamphamvu kwambiri komanso ma elekitirodi apamwamba kwambiri a graphite popanga zitsulo.
Chifukwa singano coke ali okhwima khalidwe index zofunika mu sulfure zili, phulusa zili volatiles ndi kachulukidwe weniweni, pali zofunika pa luso kupanga ndi zopangira singano coke.
(2) Sponge coke, yokhala ndi reactivity yapamwamba yamankhwala komanso zonyansa zochepa, imagwiritsidwa ntchito makamaka m'makampani osungunula aluminiyamu ndi mafakitale a carbon.
(3) Coke ya projectile kapena coke yobulungira: ndi yozungulira komanso 0.6-30mm m'mimba mwake. Nthawi zambiri amapangidwa kuchokera ku zotsalira za sulfure ndi asphaltene ndipo angagwiritsidwe ntchito popanga magetsi, simenti ndi mafuta ena a mafakitale.
(4) Coke ufa: amapangidwa ndi fluidized coking ndondomeko ndi particles zabwino (m'mimba mwake: 0.1-0.4mm), okhutira kwambiri volatilization ndi mkulu matenthedwe coefficient kukulitsa, kotero sangathe mwachindunji ntchito pokonzekera electrode ndi carbon makampani.
4: Coke yamafuta a Calcined
Pamene graphite elekitirodi kwa steelmaking kapena anode phala (kusungunuka elekitirodi) kwa zotayidwa ndi magnesium, kuti mafuta coke (coke) kukwaniritsa zofunika, coke ayenera calcined.
Kutentha kwa calcining nthawi zambiri kumakhala kozungulira 1300 ℃, cholinga chake ndikuchotsa naphthol coke volatilization momwe ndingathere.
Mwanjira imeneyi, hydrogen zili mu mafuta a coke reproducts zitha kuchepetsedwa, digiri ya graphitization ya petroleum coke imatha kuwongolera, kulimba kwa kutentha kwambiri komanso kukana kutentha kwa graphite elekitirodi kumatha kusinthidwa, ndipo madutsidwe amagetsi a graphite elekitirodi amatha kusintha. .
Calcining imagwiritsidwa ntchito kwambiri popanga ma elekitirodi a graphite, zinthu za carbon phala, mchenga wa diamondi, mafakitale a phosphorous a chakudya, mafakitale azitsulo ndi calcium carbide, yomwe imagwiritsidwa ntchito kwambiri ndi electrode ya graphite.
Coke popanda forging angagwiritsidwe ntchito mwachindunji monga calcium carbide, silicon carbide ndi boron carbide ngati zipangizo akupera.
Itha kugwiritsidwanso ntchito mwachindunji monga coke kwa mafakitale zitsulo kuphulika ng'anjo kapena kuphulika ng'anjo akalowa mpweya njerwa mpweya, komanso angagwiritsidwe ntchito kuponyera ndondomeko yaying'ono coke, etc.
Nthawi yotumiza: Nov-20-2020