Habka wax-soo-saarka walxaha kaarboonku waa injineernimada nidaamka si adag loo xakameeyo, wax-soo-saarka electrode graphite, qalabka kaarboonka ee gaarka ah, kaarboon aluminium, qalabka cusub ee kaarboon-dhamaadka sare waa mid aan kala sooc lahayn isticmaalka alaabta ceeriin, qalabka, tignoolajiyada, maaraynta afar arrimood oo wax-soo-saarka iyo tiknoolajiyada la xidhiidha.
Maaddooyinka cayriin ayaa ah qodobbada muhiimka ah ee go'aamiya sifooyinka aasaasiga ah ee alaabta kaarboonka, iyo waxqabadka alaabta ceeriin ayaa go'aamisa waxqabadka alaabta kaarboonka ee la soo saaray. Wax soo saarka UHP iyo HP graphite electrodes, coke irbad tayo sare leh ayaa ah doorashada koowaad, laakiin sidoo kale tayada sare leh asphalt binder, asphalt wakiilka impregnating. Laakiin kaliya alaabta ceeriin oo tayo sare leh, qalab la'aanta, tignoolajiyada, arrimaha maaraynta iyo tignoolajiyada la xidhiidha, sidoo kale ma awoodaan inay soo saaraan UHP tayo sare leh, electrode graphite HP.
Maqaalkani waxa uu diiradda saarayaa sifooyinka coke cirbadaha tayada sare leh si loo qeexo qaar ka mid ah aragtiyada shakhsi ahaaneed, loogu talagalay soo-saareyaasha coke-ga irbadda, soo-saareyaasha korantada, machadyada cilmi-baarista sayniska si looga hadlo.
In kasta oo wax-soo-saarka coke-ga irbadda ee Shiinaha uu ka dambeeyo kan shirkadaha shisheeye, si xawli ah ayuu u horumaray sannadihii u dambeeyay oo wuxuu bilaabay inuu qaab yeesho. Marka la eego wadarta mugga wax-soo-saarka, waxay asal ahaan dabooli kartaa baahida kookaha irbadda ee UHP iyo HP graphite electrodes oo ay soo saaraan shirkadaha kaarboonka ee gudaha. Si kastaba ha ahaatee, weli waxaa jira farqi gaar ah oo tayada coke irbadda marka la barbar dhigo shirkadaha shisheeye. Isbeddelka waxqabadka Dufcaddii wuxuu saameeyaa baahida loo qabo coke irbado tayo sare leh ee wax soo saarka cabbirka weyn ee UHP iyo HP graphite electrode, gaar ahaan ma jiro kookaha irbad wadajir ah oo tayo sare leh oo buuxin kara soosaarka wadajirka graphite electrode.
Shirkadaha kaarboonka ajnabiga ah ee soo saara sifooyinka waaweyn ee UHP, HP graphite electrode inta badan waa doorashada koowaad ee tayada sare leh ee coke cirbadaha batroolka sida kookaha alaabta ceeriin ee ugu weyn, shirkadaha kaarboon Japan waxay sidoo kale isticmaalaan qaar ka mid ah coke irbado taxane ah oo dhuxul ah sida alaabta ceeriin, laakiin kaliya ee soo socda φ 600 mm qeexitaanka wax soo saarka graphite electrode. Waqtigan xaadirka ah, kookaha irbadda ee Shiinaha ayaa inta badan ah kookaha irbado taxane ah. Wax soo saarka tayada sare leh ee cabbirka UHP graphite electrode ee shirkadaha kaarboon waxay inta badan ku tiirsan yihiin batroolka taxanaha batroolka laga keeno, gaar ahaan wax soo saarka wadajirka tayada sare leh ee la soo dhoofiyo Suishima saliidda saliidda ee Japanese Suishima iyo British HSP saliid taxane irbad coke sida kookaha alaabta ceeriin.
Waqtigan xaadirka ah, kookaha cirbadda ee ay soo saaraan shirkado kala duwan ayaa sida caadiga ah la barbar dhigaa tusmooyinka waxqabadka ganacsiga ee coke coke coke shisheeye by tusmooyinka waxqabadka caadiga ah, sida content ash, cufnaanta dhabta ah, content sulfur, content nitrogen, qaybinta xajmiga qaybinta, iskudhafka ballaarinta kuleylka iyo wixii la mid ah. Si kastaba ha ahaatee, waxaa weli jira la'aanta darajooyin kala duwan oo kala soocidda coke irbadda marka la barbar dhigo dalalka shisheeye. Sidaa darteed, wax soo saarka coke irbadda si wadajir ah sidoo kale loogu talagalay "alaabta midaysan", ma muujin karto heerka tayada sare ee coke coke.
Marka lagu daro isbarbardhigga waxqabadka caadiga ah, shirkadaha kaarboonku waa inay sidoo kale fiiro gaar ah u yeeshaan sifada coke irbadda, sida kala-soocidda isku-dhafka fidinta kulaylka (CTE), xoogga qaybta, shahaadada anisotropy, xogta ballaarinta ee gobolka aan la xakameynin iyo gobolka xannibay, iyo heerkulka u dhexeeya ballaarinta iyo foosha. Sababtoo ah kuwan guryaha kulaylka coke irbadu waa mid aad muhiim u ah in la xakameeyo habka graphitization ee habka wax soo saarka ee electrode graphite, dabcan, saamaynta guryaha kulaylka ee kookaha daamur sameeyey ka dib markii la dubay ee binder iyo asphalt wakiilka impregnating aan laga saaray.
1. Isbarbardhigga anisotropy ee coke irbadda
(A) Tusaalaha: φ 500 mm UHP electrode jirka warshad kaarboon gudaha ah;
Kookaha irbadda alaabta ceeriin: Jaban kiimiko cusub darajada LPC-U, saamiga: 100% LPC-U darajada; Falanqaynta: dhirta SGL Griesheim; Tilmaamayaasha waxqabadka ayaa lagu muujiyay shaxda 1.
(B) Tusaalaha: φ 450 mmHP jirka korantada ee warshad kaarboon gudaha ah; Coke irbadda alaabta ceeriin: warshadda gudaha ee saliidda coke, saamiga: 100%; Falanqaynta: Shandong Bazan Carbon Plant; Tilmaamayaasha waxqabadka ayaa lagu muujiyay shaxda 2.
Sida laga arki karo isbarbardhigga Shaxda 1 iyo Shaxda 2, heerka lPC-U ee coke cirbadda ee cabbirada dhuxusha kiimikada cusub ee maalinlaha ah waxay leedahay anisotropy weyn oo guryaha kulaylka ah, kaas oo anisotropy ee CTE uu gaari karo 3.61 ~ 4.55, iyo anisotropy of resistivity sidoo kale waa weyn, gaarey 2.06 ~ 2.25. Marka laga soo tago xoogga dabacsanaanta ee coke cirbadda batroolka gudaha ayaa ka wanaagsan tan kiimikada maalinlaha ah ee LPC-U ee cabbirka dhuxusha coke. Qiimaha anisotropy aad ayuu uga hooseeyaa midka cusub ee maalinlaha ah ee kiimikada LPC-U dhuxusha
Ultra power graphite electrode soo saarka falanqaynta waxqabadka anisotropic degree waa qiyaasta cirbadda coke tayada alaabta ceeriin ama aan hab falanqayn muhiim ah, size ee heerka anisotropy, dabcan, sidoo kale waxay leeyihiin saamayn gaar ah oo ku saabsan habka wax soo saarka electrode, heerka anisotropy of koronto waxqabadka naxdin kulaylka ka badan anisotropy heerka celceliska awoodda electrode yar waa wanaagsan yahay.
Waqtigan xaadirka ah, wax soo saarka coke cirbadda dhuxusha ee Shiinaha ayaa aad uga weyn tan coke cirbadda batroolka. Sababtoo ah qiimaha alaabta ceeriin ee sarreeya iyo qiimaha shirkadaha kaarboon, way adagtahay in la isticmaalo 100% coke coke gudaha gudaha wax soo saarka UHP electrode, iyadoo lagu darayo qayb gaar ah oo ah kookaha batroolka la kariyey iyo budada graphite si loo soo saaro electrode. Sidaa darteed, way adag tahay in la qiimeeyo anisotropy ee coke cirbadda guriga.
2. Tilmaamaha toosan iyo mugga ee kookaha irbadda
Waxqabadka isbeddelka toosan iyo mugga ee kookaha cirbadda ayaa inta badan ka muuqda habka garaafyada ee ay soo saarto elektrodka. Iyada oo isbeddelka heerkulka, coke cirbadda mari doonaa toosan iyo volumetric ballaarinta iyo foosha inta lagu guda jiro geedi socodka geedi socodka garaafyada kululaynta, taas oo si toos ah u saameeyaa toosan iyo volumetric isbedelka billet duban electrode ee habka graphite. Tani isku mid maaha isticmaalka guryaha kala duwan ee kookaha cayriin, heerarka kala duwan ee coke cirbadaha ayaa isbeddelaya. Waxaa intaa dheer, kala duwanaanshaha heerkulka tooska ah iyo isbeddelka mugga ee darajooyinka kala duwan ee coke irbadda iyo kookaha batroolka ee calcined ayaa sidoo kale ka duwan. Kaliya adoo sifadan kookaha ceeriin ah ayaanu si fiican u xakameyn karnaa una wanaajin karnaa soosaarka isku xigxiga kiimikaad garaafka. Tani waxay si gaar ah uga muuqataa habka garaafaynta taxanaha ah.
Jadwalka 3 wuxuu muujinayaa isbeddelada toosan iyo mugga iyo kala duwanaanta heerkulka saddexda darajo ee coke irbadda batroolka oo ay soo saartay Conocophillips gudaha UK. Balaadhinta tooska ah waxay dhacdaa marka hore marka kookaha cirbadda saliiddu ay bilowdo inay kululaato, laakiin heerkulka bilowga foosha toosan wuxuu caadi ahaan ka dambeeyaa heerkulka ugu sarreeya ee calcination. Laga soo bilaabo 1525 ℃ ilaa 1725 ℃, balaadhinta tooska ah ayaa bilaabmaysa, iyo kala duwanaanta heerkulka qandho toosan oo dhan waa cidhiidhi, kaliya 200 ℃. Heerkulka heerkulka xariiqda oo dhan ee kookaha batroolka ee caadiga ah ee daahista ayaa aad uga weyn kan kookaha irbadda, iyo kookaha irbadda dhuxusha ayaa u dhaxaysa labada, wax yar ka weyn kookaha cirbadda saliidda. Natiijooyinka tijaabada ah ee Machadka Tijaabada Tiknoolajiyada Warshadaha ee Osaka ee Japan ayaa muujinaya in ka sii xumaanaya waxqabadka kulaylka ee kookaha, way sii weyn tahay xariijinta xariijinta heerkulka, ilaa 500 ~ 600 ℃ heerkulka xariijinta xariijinta, iyo bilawga heerkulka hoos u dhaca khadka ayaa hooseeya, at 1150 ~ 1200 ℃ wuxuu bilaabay inuu dhaco sifooyin xariif ah.
Sida ugu wanaagsan ee guryaha kulaylka iyo weynaanta anisotropy ee coke irbadda, way sii yaraanaysaa heerkulka heerkulka ee foosha toosan. Qaar ka mid ah irbad saliideed oo tayo sare leh oo keliya 100 ~ 150 ℃ heerkulka heerkulka toosan. Aad bay faa'iido u leedahay shirkadaha kaarboonka si ay u hagaan wax soo saarka habka garaafyada ka dib markii ay fahmaan sifooyinka fidinta tooska ah, foosha iyo dib u balaarinta kookaha alaabta ceeriin ee kala duwan, taas oo ka fogaan karta qaar ka mid ah alaabta qashinka tayada aan loo baahnayn ee ay keento isticmaalka habka khibradda dhaqameed.
3 gunaanad
Master sifooyinka kala duwan ee alaabta ceeriin, dooran qalab macquul ah, isku darka wanaagsan ee tignoolajiyada, iyo maamulka ganacsiga waa dheeraad ah cilmi iyo macquul ah, taxanahan nidaamka nidaamka oo dhan si adag loo xakameeyo oo xasilloon, waxaa la odhan karaa in ay saldhig u ah soo saaridda tayo sare leh awood ultra-sare, korontada graphite electrode sare.
Waqtiga boostada: Dec-30-2021