Usoro mmepụta ihe carbon bụ usoro injinia a na-achịkwa nke ọma, mmepụta nke electrode graphite, ihe carbon pụrụ iche, carbon carbon, carbon carbon ọhụrụ dị elu enweghị ikewapụ ya na iji akụrụngwa, akụrụngwa, teknụzụ, njikwa ihe nrụpụta anọ na ihe ndị metụtara ya. teknụzụ.
Ngwa ngwa bụ isi ihe na-ekpebi njirimara bụ isi nke ihe carbon, na arụmọrụ nke akụrụngwa na-ekpebi arụmọrụ nke ihe carbon arụpụtara. Maka mmepụta nke UHP na HP graphite electrodes, coke agịga dị elu bụ nhọrọ nke mbụ, mana ọ dịkwa mma dị elu asphalt binder, impregnating agent asphalt. Mana naanị akụrụngwa akụrụngwa dị elu, enweghị akụrụngwa, teknụzụ, ihe njikwa na teknụzụ ndị metụtara ya, enweghịkwa ike imepụta UHP dị elu, electrode graphite HP.
Edemede a lekwasịrị anya na njirimara coke agịga dị elu iji kọwaa ụfọdụ echiche onwe onye, maka ndị na-emepụta coke agịga, ndị na-emepụta electrode, ụlọ ọrụ nyocha sayensị ga-atụle.
Ọ bụ ezie na mmepụta nke coke agịga na China na-emecha karịa nke ụlọ ọrụ mba ọzọ, ọ na-etolite ngwa ngwa n'afọ ndị na-adịbeghị anya ma malite ịmalite. N'ihe gbasara mkpokọta mmepụta ihe, ọ nwere ike imezu ihe achọrọ coke coke maka UHP na HP graphite electrodes nke ụlọ ọrụ carbon na-emepụta. Otú ọ dị, a ka nwere ọdịiche dị na àgwà coke agịga ma e jiri ya tụnyere ụlọ ọrụ mba ọzọ. Mgbanwe nke arụmọrụ batch na-emetụta ọchịchọ nke coke agịga dị elu na mmepụta nke nnukwu UHP na HP graphite electrode, karịsịa ọ dịghị ihe dị elu nke coke coke nkwonkwo nwere ike izute mmepụta nke graphite electrode nkwonkwo.
Ụlọ ọrụ carbon nke mba ọzọ na-emepụta nnukwu nkọwa UHP, HP graphite electrode na-abụkarị nhọrọ mbụ nke coke petroleum agịga dị ka isi ihe coke, ụlọ ọrụ carbon carbon na-ejikwa ụfọdụ coal usoro agịga coke dị ka akụrụngwa, mana naanị maka φ na-esonụ. Nkọwapụta 600 mm nke mmepụta electrode graphite. Ka ọ dị ugbu a, coke agịga dị na China bụ nke kachasị coal usoro agịga coke. Mmepụta nke nnukwu UHP graphite electrode dị elu site na ụlọ ọrụ carbon na-adaberekarị na usoro mmanụ ala a na-ebubata, ọkachasị mmepụta nke nkwonkwo dị elu na Japanese Suishima mmanụ usoro agịga coke na British HSP mmanụ usoro agịga coke dị ka raw material coke.
Ka ọ dị ugbu a, a na-atụnyere coke agịga nke ụlọ ọrụ dị iche iche na-emepụta ya na nrịbama arụmọrụ azụmahịa nke coke coke mba ofesi site na ndenye arụmọrụ ọdịnala, dị ka ọdịnaya ash, ezigbo njupụta, ọdịnaya sọlfọ, ọdịnaya nitrogen, nkesa nha nha, ọnụọgụ mgbasawanye ọkụ na ndị ọzọ. na. Otú ọ dị, a ka nwere ụkọ ọkwa dị iche iche nke agịga coke nkewa ma e jiri ya tụnyere mba ndị ọzọ. Ya mere, mmepụta nke agịga coke colloquially nakwa maka "ngwakọta ọnụ", enweghị ike igosipụta ọkwa nke elu-edu premium agịga coke.
Na mgbakwunye na ntụnyere arụmọrụ a na-ahụkarị, ụlọ ọrụ carbon kwesịkwara ịṅa ntị na njirimara coke coke agịga, dị ka nhazi nke ọnụọgụ mgbasawanye thermal (CTE), ike urughuru, ogo anisotropy, data mgbasawanye na steeti anaghị egbochi ya na steeti mgbochi, yana oke okpomọkụ dị n'etiti mgbasawanye na nkwekọrịta. N'ihi na ndị a thermal Njirimara nke agịga coke dị ezigbo mkpa na-achịkwa graphitization usoro na mmepụta usoro nke graphite electrode, N'ezie, mmetụta nke thermal Njirimara nke asphalt coke kpụrụ mgbe amịkpọ nke ihe nchikota na impregnating gị n'ụlọnga asphalt adịghị ewepu.
1. Ntụle nke anisotropy nke coke agịga
(A) Ihe atụ: φ 500 mm UHP electrode ahụ nke ụlọ ọrụ carbon;
Coke agịga raw ihe: Ọhụrụ Chemical LPC-U ọkwa, ruru: 100% LPC-U ọkwa; Nyocha: SGL Griesheim osisi; E gosipụtara ihe ngosi arụmọrụ na Tebụl 1.
(B) Ihe atụ: φ 450 mmHP electrode ahụ nke ụlọ ọrụ carbon; Coke agịga raw ihe: ụlọ ọrụ mmepụta ihe ụlọ mmanụ agịga coke, ruru: 100%; Nyocha: Shandong Bazan Carbon Plant; E gosipụtara ihe ngosi arụmọrụ na Tebụl 2.
Dị ka a pụrụ ịhụ site na ntụnyere nke Isiokwu 1 na Isiokwu 2, lPC-U ọkwa nke agịga coke nke ọhụrụ kwa ụbọchị chemical coal jikoro nwere nnukwu anisotropy nke thermal Njirimara, nke anisotropy nke CTE nwere ike iru 3.61 ~ 4.55, na na anisotropy nke resistivity bụkwa nnukwu, na-eru 2.06 ~ 2.25. E wezụga ike mgbanwe nke coke mmanụ ala ga-adị mma karịa nke ọhụrụ kemịkalụ LPC-U ọkwa coal ntụ ntụ coke. Uru nke anisotropy dị obere karịa nke ọhụrụ kemịkalụ kwa ụbọchị LPC-U coal tụọ agịga coke.
Ultra elu ike graphite electrode mmepụta anisotropic ogo arụmọrụ analysis bụ atụmatụ nke agịga coke raw material quality ma ọ bụ bụghị ihe dị mkpa analysis usoro, size nke ogo anisotropy, N'ezie, nwekwara ụfọdụ mmetụta na electrode mmepụta usoro, ogo nke anisotropy nke ọkụ eletrik na-arụ ọrụ oke ọkụ ọkụ karịa ogo anisotropy nke nkezi ike nke obere electrode dị mma.
Ka ọ dị ugbu a, mmepụta nke coke agịga coal na China dị nnọọ ukwuu karịa nke coke agịga mmanụ ala. N'ihi ọnụ ahịa akụrụngwa dị elu na ọnụ ahịa ụlọ ọrụ carbon, ọ na-esiri ike iji coke coke ụlọ 100% na mmepụta nke UHP electrode, ebe ị na-agbakwunye akụkụ ụfọdụ nke coke petroleum na graphite ntụ ntụ iji mepụta electrode. Ya mere, ọ na-esiri ike inyocha anisotropy nke coke agịga ụlọ.
2. Linear na volumetric Njirimara nke agịga coke
Arụmọrụ mgbanwe linear na volumetric nke coke agịga na-apụtakarị na usoro graphite nke electrode na-emepụta. Na mgbanwe nke okpomọkụ, agịga coke ga-enweta linear na volumetric mgbasawanye na nkwekọrịta n'oge usoro nke graphite usoro kpo oku, nke na-emetụta kpọmkwem linear na volumetric mgbanwe nke electrode a ṅara n'ọkụ billet na graphite usoro. Nke a abụghị otu maka iji ihe dị iche iche nke raw coke, ọkwa dị iche iche nke agịga coke mgbanwe. Ọzọkwa, ọnọdụ okpomọkụ nke linear na mgbanwe olu nke ọkwa dị iche iche nke agịga coke na calcined petroleum coke dịkwa iche. Naanị site n'ịghọta njirimara a nke raw coke, anyị nwere ike ijikwa ma kwalite mmepụta nke usoro kemịkalụ graphite. Nke a pụtara ìhè karịsịa na usoro nhazi usoro.
Tebụlụ 3 na-egosi mgbanwe ahịrị na olu na oke okpomọkụ nke klaasị atọ nke coke agịga mmanụ ala nke Conocophillips mepụtara na UK. Mgbasawanye Linear na-ebute ụzọ mgbe coke mmanụ ga-amalite ikpo ọkụ, mana okpomọkụ na mmalite nke nkwekọrịta linear na-adịkarị n'azụ okpomọkụ calcination kachasị. Site na 1525 ℃ ruo 1725 ℃, linear mgbasa na-amalite, na okpomọkụ nso nke dum linear contraction dị warara, naanị 200 ℃. Okpomọkụ dị nso nke nkwekọrịta ahịrị dum nke coke petroleum nkịtị na-egbu oge dị ukwuu karịa nke coke agịga, na coke coke coke dị n'etiti abụọ ahụ, dị ntakịrị karịa coke agịga mmanụ. Nsonaazụ ule nke Osaka Industrial Technology Test Institute dị na Japan na-egosi na ka arụrụ ọrụ ọkụ nke coke ka njọ, ka ọnụọgụ ahụ na-ebelata okpomọkụ, ruo 500 ~ 600 ℃ akara okpomọkụ, na mmalite nke nkwụsịtụ okpomọkụ dị ala. , na 1150 ~ 1200 ℃ malitere ime ahịrị shrinkage, nke bụkwa ihe e ji mara ndị nkịtị na-egbu oge petroleum coke.
Ka mma thermal Njirimara na ukwuu anisotropy nke agịga coke, na warara na okpomọkụ nso nke linear nkwekọrịta. Coke ụfọdụ agịga mmanụ dị elu dị naanị 100 ~ 150 ℃ nkwekọ nkwekọ ọnụ. Ọ bara ezigbo uru maka ụlọ ọrụ carbon na-eduzi mmepụta usoro graphitization mgbe ha ghọtara njirimara nke mgbasawanye linear, mkpirisi na reexpansion nke dị iche iche akụrụngwa coke, nke nwere ike zere ụfọdụ na-enweghị isi àgwà n'efu ngwaahịa kpatara site na iji omenala experiential mode.
3 nkwubi okwu
Nna ukwu dị iche iche e ji mara nke akụrụngwa, họrọ ezi uche ngwá kenha, ezi Nchikota technology, na enterprise management bụ ihe sayensị na ezi uche, usoro a dum usoro usoro tightly achịkwa ma kwụsie ike, nwere ike kwuru na nwere ndabere nke na-amị elu- àgwà ultra-high ike, ike dị elu graphite electrode.
Oge nzipu: Dec-30-2021