Graphite Electrodes su ne babban kayan dumama da ake amfani da su a cikin tanderun baka na lantarki, tsarin yin ƙarfe inda ake narkar da tarkacen tsofaffin motoci ko na kayan aiki don samar da sabon ƙarfe.
Tushen wutan lantarki ya fi arha ginawa fiye da tanderun fashewar gargajiya, waɗanda ke yin ƙarfe daga taman ƙarfe kuma ana hura su ta hanyar coking gawayi.Amma farashin yin karafa ya fi yawa tunda suna amfani da tarkacen karfe da wutar lantarki.
Na'urorin lantarki wani ɓangare ne na murfin tanderun kuma an haɗa su cikin ginshiƙai.Daga nan sai wutar lantarki ta ratsa ta cikin na'urorin lantarki, ta samar da wani baka mai tsananin zafi wanda ke narkar da tarkacen karfen.Electrodes sun bambanta da girma amma suna iya kaiwa mita 0.75 (ƙafa 2 da rabi) a diamita kuma tsayin ya kai mita 2.8 (ƙafa 9).Mafi girma yana auna fiye da tan metric biyu.
Yana ɗaukar kilogiram 3 (6.6 lb) na lantarki na graphite don samar da tan ɗaya na ƙarfe.
Ƙarshen wutar lantarkin zai kai digiri 3,000 a ma'aunin celcius, rabin zafin rana.Electrodes an yi su ne da graphite saboda graphite ne kawai ke iya jure irin wannan zafin mai zafi.
Daga nan sai tanderun da ake murzawa a gefenta don zuba narkakkar karfe a cikin manyan bokiti da ake kira ladles.Ladles ɗin suna ɗaukar narkakkar karfen zuwa simintin niƙa, wanda ke yin sabbin samfura daga tarkacen da aka sake sarrafa.
Wutar lantarkin da ake buƙata don wannan tsari ya isa ya ba da wutar lantarki ga garin da ke da mutane 100,000.Kowane narke a cikin tanderun baka na zamani yana ɗaukar kusan mintuna 90 kuma yana yin tan 150 na ƙarfe, wanda ya isa kusan motoci 125.
Alurar coke ita ce babban kayan da ake amfani da ita a cikin na’urorin lantarki da masana’antun suka ce za su iya daukar watanni shida kafin su yi tare da yin burodi da kuma sake yin burodi don canza coke din zuwa graphite.
Akwai coke mai allura mai tushen man fetur da coke mai tushen kwal, kuma ko dai ana iya amfani da shi don samar da lantarki na graphite.'Pet Coke' wani samfur ne na aikin tace mai, yayin da coke mai tushen kwal ana yin shi daga kwal ɗin kwal da ke fitowa yayin samar da coke.
A ƙasa akwai manyan masu kera na'urorin lantarki na graphite da aka jera ta hanyar samarwa a cikin 2016:
Kamfanoni Sunan Hedkwatar Karfin Hannun jari
(,000 ton) YTD %
GrafTech US 191 Mai zaman kansa
Ƙasashen Duniya
Fangda Carbon China 165 +264
SGL Carbon Jamus 150 +64
* Showa Denko Japan 139 +98
KK
Graphite Indiya Indiya 98 +416
Ltd
HEG India 80 +562
Tokai Carbon Japan 64 +137
Co Ltd
Nippon Carbon Japan 30 +84
Co Ltd
SEC Carbon Japan 30 +98
*SGL Carbon a cikin Oktoba 2016 ya ce zai sayar da kasuwancin sa na lantarki na graphite ga Showa Denko.
Madogararsa: GrafTech International, UK Steel, Tokai Carbon Co Ltd
Lokacin aikawa: Mayu-21-2021