Petroleum coke chigadzirwa chakasimba chinopisa chinowanikwa kubva kune petroleum residue uye petroleum asphalt nekubika. Rudzi irworwo dema uye porous, chinhu chikuru kabhoni, uye madota akadzika kwazvo, kazhinji ari pasi pe0.5%. Petroleum coke imhando yakapusa graphitized kabhoni, petroleum coke ine kwakasiyana mashandisiro muindasitiri yemakemikari, simbi uye mamwe maindasitiri, uye ndiyo huru mbishi pakugadzirwa kwezvakagadzirwa graphite zvigadzirwa uye electrolytic aluminium kabhoni zvigadzirwa.
Zvinoenderana nekushisa kwekushisa kwekushisa, petroleum coke inogona kukamurwa kuita marudzi maviri: coke mbishi uye calcined coke. Iyo yaimbova petroleum coke yakawanikwa kubva kunonoka kubika ine zvakawanda zvemukati uye ine yakaderera mechanic simba. Iyo calcined coke inowanikwa ne calcination. Mazhinji ekunatsa muChina anongoburitsa coke mbishi chete, uye akawanda calcination mashandiro anoitwa muzvirimwa zvekabhoni.
Petroleum coke inogona kupatsanurwa kuita yakakwira sarufa coke (ine inodarika 1.5% sarufa), yepakati sarufa coke (ine 0.5% -1.5% sarufa), uye yakaderera sarufa coke (ine isingasviki 0.5% sarufa) mhando nhatu, graphite electrodes uye mamwe artificial kugadzirwa sarufa coke anowanzo shandisa zvigadzirwa zvakaderera zvesarufa.
Tsono coke imhando yemhando yepamusoro coke ine yakajeka fibrous manyorerwo, kunyanya yakaderera kupisa kwekuwedzera coefficient uye nyore graphitization. Kana iyo coke block ikatsemuka, inogona kupatsanurwa kuita mitsetse mitsetse zvidimbu zvinoenderana nemanyorerwo (iyo aspect ratio inowanzo pfuura 1.75), uye anisotropic fibrous chimiro chinogona kucherechedzwa pasi pepolarized light microscope, saka inonzi tsono coke.
Iyo yemuviri uye yemagetsi anisotropy yetsono coke iri pachena, uye ine yakanaka yemagetsi uye yekupisa conductivity inopindirana neiyo axis refu yezvikamu, uye iyo yekupisa yekuwedzera coefficient yakaderera. Munguva yekuumbwa kwe extrusion, iyo axis yakareba yezvimedu zvakawanda inorongwa maererano ne extrusion direction. Naizvozvo, tsono coke ndiyo kiyi mbishi zvinhu zvekugadzira yakakwirira-simba kana Ultra-yakakwirira-simba graphite electrode, ine yakaderera resistivity, diki coefficient yekuwedzera kwemafuta uye yakanaka yekupisa kuvhunduka kuramba.
Tsono coke yakakamurwa kuita mafuta tsono coke inogadzirwa kubva petroleum residue uye marasha tsono coke inogadzirwa kubva kunatswa marasha asphalt.
Coal tar pitch ndechimwe chezvigadzirwa zvikuru zvemarasha tar yakadzika kugadzirisa. Musanganiswa wemhando dzakasiyana-siyana dzemahydrocarboni, dema high viscosity semi-solid kana yakasimba pane tembiricha yekamuri, isina kunyungudika yakagadziriswa, yakanyoroveswa mushure mekupisa, yobva yanyungudutswa, ine density ye1.25-1.35g/cm3. Zvinoenderana nekunyorovesa kwayo nzvimbo yakakamurwa kuita yakaderera tembiricha, ine mwero uye yakakwirira tembiricha asphalt marudzi matatu. Goho repakati tembiricha asphalt i54-56% yemarasha tara. Iko kuumbwa kwemarasha kwemarasha kwakaoma kwazvo, iyo ine hukama nemidziyo yemarasha tara uye zviri mukati meheteroatoms, uye zvakare inobatwa neiyo coking process system uye mamiriro ekugadzirisa emarasha tar. Kune akawanda ma indexes ekuratidza zvimiro zvemarasha pitch, senge asphalt softening point, toluene insoluble (TI), quinoline insoluble (QI), coking value uye rheological properties yemarasha pitch.
Coal pitch inoshandiswa sebhainda uye kuisa nhumbu muindasitiri yekabhoni, uye zvimiro zvayo zvine pesvedzero huru pamaitiro ekugadzira uye kunaka kwechigadzirwa chekabhoni zvigadzirwa. Binder asphalt kazhinji inoshandisa tembiricha yepakati kana yepakati tembiricha yakagadziridzwa asphalt ine mwero kupfava poindi, yakakwira coking kukosha uye yakakwira beta resin, uye mumiriri weiyo impregnation anofanirwa kushandisa yepakati tembiricha asphalt ine yakaderera kupfava poindi, yakaderera QI uye yakanaka rheology.
Nguva yekutumira: Feb-07-2025