Ngwa ngwa maka imepụta electrodes graphite gụnyere mmanụ ala coke, coke coke na coal tar pitch:

Petroleum coke bụ ngwaahịa siri ike na-ere ọkụ nke enwetara site na ichikota ihe fọdụrụ na mmanụ ala na pitch mmanụ.Agba bụ oji na porous, isi ihe bụ carbon, na ash ọdịnaya dị nnọọ ala, n'ozuzu n'okpuru 0,5%.Coke mmanụ ala bụ ụdị carbon dị mfe graphitized.A na-eji coke mmanụ ala eme ihe n'ọtụtụ ebe na ụlọ ọrụ kemịkalụ, ọla na ụlọ ọrụ ndị ọzọ.Ọ bụ isi akụrụngwa maka mmepụta nke ngwaahịa graphite artificial na ngwaahịa carbon maka aluminum electrolytic.

Dị ka okpomọkụ ọgwụgwọ okpomọkụ si dị, mmanụ ala coke nwere ike kewaa na green coke na calcined coke.Nke mbụ bụ mmanụ ala coke enwetara site na-egbu oge coking, nke nwere nnukwu ego nke ihe na-agbanwe agbanwe ma na-enwe obere ígwè ọrụ.A na-enweta coke calcined site na calcining green coke.Ọtụtụ ụlọ ọrụ nnụcha na China na-emepụta naanị coke akwụkwọ ndụ akwụkwọ ndụ, a na-arụkwa ọtụtụ ọrụ calcination na osisi carbon.

Enwere ike kewaa coke mmanụ n'ime nnukwu sọlfọ coke (ihe karịrị 1.5% sọlfọ ọdịnaya), ọkara sọlfọ coke (0.5% -1.5% sọlfọ ọdịnaya) na obere sọlfọ coke (ihe na-erughị 0,5% sọlfọ ọdịnaya).A na-emepụta electrodes graphite na ngwaahịa graphite ndị ọzọ site na iji obere sọlfọ coke.

Coke agịga bụ ụdị coke nwere udidi fibrous doro anya, ọnụọgụ mgbasawanye ọkụ dị ala yana eserese dị mfe.Mgbe a gbajiri ngọngọ coke ahụ, enwere ike kewaa ya n'ime akụkụ dị ogologo na nke dị mkpa (ogologo na obosara ruru n'ozuzu n'elu 1.75) dịka udidi siri dị.Enwere ike ịhụ ihe owuwu fibrous anisotropic n'okpuru microscope polarizing, yabụ a na-akpọ ya coke agịga.

Anisotropy nke anụ ahụ na akụrụngwa nke coke agịga bụ ihe doro anya.The ntụziaka yiri ogologo axis nke ahụ nwere ezigbo ọkụ eletrik na thermal conductivity, na ọnụọgụgụ nke thermal mgbasa bụ ala.N'oge extrusion ịkpụzi, ogologo axes nke ọtụtụ ahụ na-ahaziri na ntụziaka nke extrusion.Ya mere, coke agịga bụ isi akụrụngwa maka imepụta electrodes graphite dị elu ma ọ bụ ike dị elu.Eletrọd graphite mere nwere obere resistivity, obere ọnụọgụ mgbasawanye ọkụ, yana ezigbo nguzogide ujo.

A na-ekewa coke agịga ka ọ bụrụ coke agịga mmanụ sitere na mmanụ mmanụ amịpụtara na coke coke nke nwere coal nke sitere na pitch tar a nụchara anụcha.

Igwe ọkụ coal tar bụ otu n'ime ihe ndị bụ isi a na-esi na-arụ ọrụ omimi coal tar.Ọ bụ ngwakọta nke hydrocarbons dị iche iche, nwa elu viscosity ọkara siri ike ma ọ bụ siri ike na ụlọ okpomọkụ, na-enweghị ebe mgbaze edozi, na-eme ka ọ dị nro mgbe okpomọkụ gasịrị, na-agbaze, na njupụta nke 1.25-1.35g / cm3.Dị ka softening ebe kewara ala okpomọkụ, agafeghị oke na elu okpomọkụ asphalt atọ.Mkpụrụ asphalt na-ajụ oyi bụ 54-56% nke coal tar.Ngwakọta nke bitumen coal dị nnọọ mgbagwoju anya, nke metụtara njirimara nke coal tar na ọdịnaya heteroatoms, na-emetụtakwa usoro teknụzụ coking na ọnọdụ nhazi nke coal tar.E nwere ọtụtụ index iji mara Njirimara nke coal asphalt, dị ka asphalt softening point, toluene insoluble matter (TI), quinoline insoluble matter (QI), coking uru na rheological onwunwe nke coal asphalt.

A na-eji ụda coal eme ihe dị ka ihe na-ekekọta na ihe na-emepụta ihe na ụlọ ọrụ carbon.Ngwongwo ya nwere mmetụta dị ukwuu na usoro mmepụta na àgwà nke ngwaahịa carbon.Binder asphalt n'ozuzu na-eji agafeghị oke nro nro, elu coking uru, elu beta resin ọkara okpomọkụ ma ọ bụ ọkara okpomọkụ gbanwetụrụ asphalt, impregnating onye na-eji ala nro nro, ala QI, rheology nwere ike ịbụ ezigbo ọkara okpomọkụ asphalt.

• Ngwa graphite electrode

Graphite electrode nwere ọtụtụ ihe eji eme ihe, nke a na-ejikarị eme ihe n'ọkụ ọkụ eletrik, ọkụ ọkụ ore, ọkụ ọkụ, wdg.

1. Graphite electrode na-eji na arc steelmaking ọkụ

Isi ọrụ nke eletriki ọkụ steelmaking, ọkụ eletrik steelmaking bụ ojiji nke graphite electrode n'ime ọkụ ugbu a, ike ugbu a na ala njedebe nke electrode site na gas arc mwepu, ojiji nke arc eme okpomọkụ maka agbaze, dị ka size nke ike ọkụ ọkụ eletrik, nke nwere dayameta dị iche iche nke electrodes graphite, iji na-aga n'ihu na-eji electrodes, electrodes site na electrode thread joint joint, The graphite electrode used in steelmakers maka ihe dị ka 70-80% nke ngụkọta ego nke graphite electrode.

2. Onye ọrụ ịnweta ọkụ ọkụ eletrik

A na-ejikarị ọkụ ọkụ na-emepụta ihe maka imepụta ferroalloy, silicon dị ọcha, phosphorus odo, matte na calcium carbide.Ihe e ji mara ya bụ na a na-eli akụkụ ala nke electrode conductive na ụgwọ ahụ, ya mere na mgbakwunye na okpomọkụ nke arc na-eme n'etiti efere na ụgwọ ahụ, nke ugbu a site na ụgwọ site na nguzogide nke ụgwọ ahụ na-emepụtakwa okpomọkụ, nke ọ bụla. ton nke silicon kwesịrị iri ihe dị ka 150kg/ graphite electrode, ton nke phosphorus na-acha odo odo kwesịrị iri ihe dị ka 40kg graphite electrode.

3, maka ọkụ ọkụ

Production nke graphite ngwaahịa na graphitization ọkụ, agbaze iko ọkụ na mmepụta nke silicon carbide ọkụ bụ ndị na-eguzogide ọkụ, ọkụ arụnyere na-agwụ ike kpo oku eguzogide, bụkwa ihe kpo oku.N'ozuzu, a na-etinye electrode conductive graphite n'ime mgbidi isi ọkụ na njedebe nke ebe a na-ekpo ọkụ, ya mere electrode na-eduzi anaghị anọgide na-eri.

Tụkwasị na nke ahụ, a na-ejikwa ọnụ ọgụgụ dị ukwuu nke oghere electrode graphite maka nhazi n'ime ụdị dị iche iche nke crucible, ụgbọ mmiri graphite, nkedo na-ekpo ọkụ na ọkụ ọkụ ọkụ ọkụ ọkụ ọkụ na ngwaahịa ndị ọzọ nwere ọdịdị pụrụ iche.Dị ka ọmụmaatụ, na quartz iko ụlọ ọrụ, 10t graphite electrode oghere chọrọ maka ọ bụla 1t capacitor tube mmepụta, na 100kg electrode oghere na-erepịakwa maka ọ bụla 1t quartz brik mmepụta.

#carbon riser #graphite electrode #carbon na-eri ahụ # petroleum coke graphited # agịga coke #petroleum coke