ʻO nā mea maka no ka hana ʻana i nā electrodes graphite ʻo ia ka petroleum coke, needle coke a me ka lanahu tar pitch:

ʻO ka Petroleum coke kahi huahana paʻa paʻa i loaʻa ma ka coking petroleum koena a me ka petroleum pitch.He ʻeleʻele a porous ka waihoʻoluʻu, ʻo ke kalapona ka mea nui, a he haʻahaʻa loa ka ʻike lehu, ma lalo o 0.5%.ʻO ka Petroleum coke kahi ʻano kalapona maʻalahi i kahakaha ʻia.Hoʻohana nui ʻia ka Petroleum coke i ka ʻoihana kemika, metallurgy a me nā ʻoihana ʻē aʻe.ʻO ia ka mea kumu nui no ka hana ʻana i nā huahana graphite artificial a me nā huahana kalapona no ka alumini electrolytic.

Wahi a ka wela wela, hiki ke hoʻokaʻawale ʻia ka coke petroleum i ka coke ʻōmaʻomaʻo a me ka coke calcined.ʻO ka mea mua, ʻo ia ka petroleum coke i loaʻa i ka coking lohi, aia ka nui o nā mea volatile a he haʻahaʻa ka ikaika mechanical.Loaʻa ka calcined coke ma ka calcining green coke.ʻO ka hapa nui o nā refineries ma Kina e hana wale i ka coke ʻōmaʻomaʻo, a ʻo ka hapa nui o nā hana calcination e hana ʻia i nā mea kanu kalapona.

Hiki ke hoʻokaʻawale ʻia ka coke Petroleum i ka coke sulfur kiʻekiʻe (ʻoi aku ma mua o 1.5% sulfur content), medium sulfur coke (0.5% -1.5% sulfur content) a me ka coke sulfur haʻahaʻa (emi iho ma mua o 0.5% sulfur content).Hana ʻia nā electrodes graphite a me nā huahana graphite artificial me ka hoʻohana ʻana i ka coke sulfur haʻahaʻa.

He ʻano coke ʻo Needle coke me ke ʻano fibrous ʻikea, haʻahaʻa haʻahaʻa haʻahaʻa hoʻonui hoʻonui a maʻalahi ka graphitization.Ke wāwahi ʻia ka poloka coke, hiki ke hoʻokaʻawale ʻia i nā ʻāpana ʻāpana lōʻihi a lahilahi (ʻoi aku ka lōʻihi a me ka laulā ākea ma luna o 1.75) e like me ke ʻano.Hiki ke ʻike ʻia ke ʻano fibrous anisotropic ma lalo o ka microscope polarizing, no laila ua kapa ʻia ʻo needle coke.

He mea maopopo loa ka anisotropy o ke kino a me ka mechanical o ka nila coke.ʻO ke kuhikuhi e pili ana i ke koʻi lōʻihi o nā ʻāpana he maikaʻi ka uila a me ka thermal conductivity, a haʻahaʻa ka coefficient o ka hoʻonui wela.I ka wā hoʻoheheʻe extrusion, hoʻonohonoho ʻia nā koʻi lōʻihi o ka hapa nui o nā ʻāpana i ke kuhikuhi o ka extrusion.No laila, ʻo ka nila coke ke kī nui no ka hana ʻana i nā electrodes graphite kiʻekiʻe a i ʻole ultra-high-power.ʻO nā electrodes graphite i hana ʻia he haʻahaʻa haʻahaʻa haʻahaʻa, liʻiliʻi ka hoʻonui ʻana i ka wela, a me ke kūpaʻa haʻalulu maikaʻi.

Hoʻokaʻawale ʻia ʻo Needle coke i loko o ka ʻaila coke kola i hana ʻia mai ke koena o ka ʻaila a me ka coke kola-lanahu i hana ʻia mai ka pitch tar i hoʻomaʻemaʻe ʻia.

ʻO ka lanahu tar pitch kekahi o nā huahana nui o ka hana hohonu ʻana o ka lanahu.He hui ia o nā ʻano hydrocarbons, ʻeleʻele kiʻekiʻe viscosity semi-solid a paʻa paha i ka lumi wela, me ka ʻole o ka hoʻoheheʻe ʻana, e hoʻoheheʻe ʻia ma hope o ka wela, a laila hoʻoheheʻe ʻia, me ka density o 1.25-1.35g/cm3.E like me kona softening wahi i maheleia i haʻahaʻa wela, haʻahaʻa a me ke kiʻekiʻe wela asphalt ekolu.He 54-56% ka hua o ka asphalt wela o ka lanahu.He paʻakikī loa ka hana ʻana o ka bitumen lanahu, e pili ana i nā waiwai o ka coal tar a me ka ʻike o nā heteroatoms, a ua hoʻopili ʻia hoʻi e ka ʻōnaehana ʻenehana coking a me nā kūlana hana o ka lanahu.He nui na indexes e ike i na waiwai o ka lanahu asphalt, e like me ka asphalt softening point, toluene insoluble matter (TI), quinoline insoluble matter (QI), coking value and rheological property of lanahu asphalt.

Hoʻohana ʻia ka lanahu pitch ma ke ʻano he binder a impregnating agent i ka ʻoihana kalapona.He hopena nui kona mau waiwai i ke kaʻina hana a me ka maikaʻi o nā huahana kalapona.Hoʻohana maʻamau ʻo Binder asphalt i ka wahi palupalu haʻahaʻa, ka waiwai coking kiʻekiʻe, ke kiʻekiʻe beta resin medium wela a i ʻole ka wela wela i hoʻololi ʻia i ka asphalt, impregnating agent e hoʻohana i ka wahi palupalu haʻahaʻa, QI haʻahaʻa, hiki i ka rheology ke lilo i asphalt wela waena.

• Hoʻohana electrode graphite

He nui ka hoʻohana ʻana o ka graphite electrode, ka mea i hoʻohana nui ʻia i ka hana ʻana i ka umu uila, ka umu wela wela, ke kapuahi pale, etc.

1. Hoʻohana ʻia ka graphite electrode i loko o ka umu ahi hana hao

ʻO nā mea hoʻohana nui o ka umu ahi uila, ka hoʻohana ʻana i ka graphite electrode i loko o ka umu ahi, ka ikaika o ka manawa ma ka ʻaoʻao haʻahaʻa o ka electrode ma o ka hoʻokuʻu ʻana o ke kinoea, ka hoʻohana ʻana i ka arc i hana ʻia ka wela no ka hoʻoheheʻe ʻana, e like me ka nui o ʻO ka mana o ka umu ahi uila, me nā anawaena like ʻole o nā electrodes graphite, i mea e hoʻohana mau ai i nā electrodes, nā electrodes e ka electrode thread joint connection, ʻO ka graphite electrode i hoʻohana ʻia i ka hana kila e pili ana i ka 70-80% o ka nui o ka graphite electrode.

2. Mea hoʻohana mineral wela umu uila

Hoʻohana nui ʻia ka umu minerala no ka hana ʻana i ka ferroalloy, silika maʻemaʻe, phosphorus melemele, matte a me ka calcium carbide.ʻO kāna mau hiʻohiʻona, ʻo ka ʻāpana haʻahaʻa o ka electrode conductive i kanu ʻia i loko o ka hoʻopiʻi, no laila me ka wela i hana ʻia e ka arc ma waena o ka pā a me ka hoʻopiʻi, ʻo ke ʻano ma o ka hoʻopiʻi ʻana e ke kūʻē ʻana o ka hoʻopiʻi hoʻi e hoʻoulu i ka wela, kēlā me kēia. ton o ke silika pono e hoopau ma kahi o 150kg/ graphite electrode, kela ton o ka melemele phosphorus pono e hoopau ma kahi o 40kg graphite electrode.

3, no ke kapuahi pale

Iecaianoaaiiuo o graphite huahana me ka graphitization kapuahi, hehee aniani kapuahi a me ka hana ana o ka silikoni carbide kapuahi i pale kapuahi, kapuahi i hoʻokomo boring mehana kuʻekuʻe, no hoi ka mea o ka wela.ʻO ka maʻamau, hoʻokomo ʻia ka electrode graphite conductive i loko o ka paia poʻo o ka umu ahi ma ka hope o ka puʻu ahi, no laila ʻaʻole hoʻopau mau ʻia ka electrode conductive.

Eia kekahi, hoʻohana ʻia ka nui o nā graphite electrode blanks no ka hana ʻana i nā ʻano crucible, graphite waʻa, hoʻoheheʻe wela a me ke kino hoʻomehana umu uila a me nā huahana kūikawā.No ka laʻana, ma ka ʻoihana aniani quartz, koi ʻia ka 10t graphite electrode blank no kēlā me kēia 1t capacitor tube production, a ʻo 100kg electrode blank e hoʻopau ʻia no kēlā me kēia 1t quartz brick production.

#carbon raiser #graphite electrode #carbon addictive # graphited petroleum coke # needle coke #petroleum coke