Calcined coke imhando ye carburizer uye petroleum coke yeakasiyana zvirevo.
Mamiriro makuru ezvigadzirwa zvegraphite ndeye ￠150-￠1578 uye mamwe mamodheru. Izvo zvakakosha kumabhizinesi esimbi nesimbi, maindasitiri esilicon polysilicon mabhizinesi, emery mabhizinesi, aerospace zvinhu indasitiri uye zvimwe zvigadzirwa.
1: Petroleum coke
Petroleum coke idema kana rima grey hard solid solid petroleum chigadzirwa chine simbi inopenya uye ine porous. Iyo igranular, columnar, kana tsono-yakafanana nekabhoni zvinhu zvine microscopic graphite crystals.
Petroleum coke ine hydrocarbons, 90-97% kabhoni, 1.5-8% hydrogen, nitrogen, chlorine, sarufa, uye heavy metal makomboni.
Petroleum coke ndiyo-chigadzirwa che pyrolysis yemafuta akaomeswa mune yakanonoka coking unit kugadzira mafuta akareruka pakupisa kwakanyanya.
Kubuda kwepetroleum coke kunosvika 25-30% yemafuta akabikwa.
Yayo yakaderera calorific kukosha ndeye 1.5-2 nguva dzemarasha, madota emukati haapfuuri 0.5%, inoshanduka yemukati inenge 11%, uye kunaka kwayo kuri pedyo neanthracite.
2: Hunhu hwemhando yepetroleum coke Yakanonoka petroleum coke inoreva coke inogadzirwa nekunonoka coking unit, inozivikanwawo seyakajairwa coke, hapana inoenderana ## standard.
Parizvino, mabhizinesi ekugadzira mudzimba anonyanya kugadzira zvinoenderana neindasitiri chiyero SH0527-92 chakagadzirwa neyaimbova China Petrochemical Corporation.
Iyo chiyero inonyanya kuiswa zvichienderana nesarufa yemukati ye petroleum coke.
No. 1 coke inokodzera kugadzira akajairika simba graphite electrode muindasitiri yekugadzira simbi, uye inoshandiswawo sekabhoni yekunatsa aluminium.
Nhamba 2 coke inoshandiswa kugadzira electrode paste uye graphite electrode kugadzirwa mu electrolytic cell (choto) mualuminium smelting industry.
No. 3 coke inoshandiswa mukugadzirwa kwesilicon carbide (kukuya zvinhu) uye calcium carbide (calcium carbide), pamwe chete nemimwe michina yekabhoni, pamwe chete nekugadzirwa kweanode blocks yealuminium smelter uye pakuvaka carbon lining. zvidhinha kana muchoto pasi mumoto unoputika.
3: maSHANDISI makuru epetroleum coke
Iwo maSHANDISI makuru epetroleum coke pre-yakabikwa anode uye anode paste ye electrolytic aluminium, kabhoni kugadzirwa kwecarbonizing agent, graphite electrode, kunyungudutsa indasitiri silicon nemafuta, nezvimwe.
Zvinoenderana nechimiro uye chitarisiko chepetroleum coke, petroleum coke zvigadzirwa zvinogona kukamurwa kuita tsono coke, sponge coke, projectile coke uye poda coke:
(1) Coke yakaita tsono, ine maitiro akajeka-akaita tsono uye fiber texture, inonyanya kushandiswa se-high-power graphite electrode uye ultra-high-power graphite electrode mukugadzira simbi.
Nekuti tsono coke ine yakasimba yemhando index inodikanwa mune zvesarufa zvemukati, madota emukati, zvinoputika zvemukati uye density yechokwadi, pane zvakakosha zvinodiwa pahunyanzvi hwekugadzira uye zvigadzirwa zvetsono coke.
(2) Sponge coke, ine yakakwira makemikari reactivity uye yakaderera kusvibiswa zvirimo, inonyanya kushandiswa mualuminium kunyungudutsa indasitiri uye kabhoni indasitiri.
(3) Projectile coke kana spherical coke: ine denderedzwa muchimiro uye 0.6-30mm mudhayamita. Iyo inowanzo gadzirwa kubva kumusoro-sarufa uye yakakwirira-asphaltene yakasara uye inogona kushandiswa chete kugadzira magetsi, simende uye mamwe maindasitiri emafuta.
(4) Powder coke: inogadzirwa neiyo fluidized coking process ine yakanaka particles (diameter: 0.1-0.4mm), yakakwirira volatilization content uye high thermal kuwedzera coefficient, saka haigoni kushandiswa zvakananga mukugadzirisa electrode uye carbon industry.
4: Calcined petroleum coke
Kana iyo graphite electrode yekugadzira simbi kana anode paste (kunyunguduka electrode) yealuminium uye magnesium, kuitira kuti petroleum coke (coke) iite zvinodiwa, iyo coke inofanira kuverengerwa.
Iyo tembiricha yecalcining inowanzotenderedza 1300 ℃, chinangwa chiri chekubvisa naphthol coke volatilization kusvika pazvinobvira.
Nenzira iyi, iyo hydrogen yemukati petroleum coke reproducts inogona kuderedzwa, iyo graphitization degree yepetroleum coke inogona kuvandudzwa, kusimba kwepamusoro-tembiricha uye kupisa kupisa kwegraphite electrode kunogona kuvandudzwa, uye magetsi emagetsi egraphite electrode anogona kuvandudzwa. .
Calcining inonyanya kushandiswa kugadzira graphite electrode, carbon paste products, Diamond sand, food-grade phosphorus industry, metallurgical industry uye calcium carbide, pakati peiyo graphite electrode inoshandiswa zvakanyanya.
Coke isina kuumba inogona kushandiswa zvakananga se calcium carbide, silicon carbide uye boron carbide sezviyo zvekukuya.
Inogona zvakare kushandiswa zvakananga se coke yesimbi yesimbi indasitiri inoputika choto kana blast furnace lining kabhoni zvidhinha, zvakare inogona kushandiswa kukanda process compact coke, nezvimwe.
Nguva yekutumira: Nov-20-2020