"Ua waiwai ʻia ka mākeke electrode graphite honua ma 9.13 biliona kālā ʻAmelika i ka makahiki 2018 a ua manaʻo ʻia e hōʻea i 16.48 biliona kālā ʻAmelika ma ka makahiki 2025, me ka nui o ka ulu makahiki o 8.78% i ka wā wānana."
Me ka piʻi ʻana o ka hana kila a me ka ʻoihana ʻana o nā ʻoihana hou, ke hoʻomau nei ka noi no nā ʻenekinia a me nā mea kūkulu hale, ʻo ia kekahi o nā mea nui e hoʻokele nei i ka ulu ʻana o ka mākeke electrode graphite honua.
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ʻO nā electrodes graphite he mau mea hoʻomehana i hoʻohana ʻia i loko o nā umu arc uila e hana i ke kila mai nā ʻōpala, nā kaʻa kahiko a me nā lako ʻē aʻe. Hāʻawi nā electrodes i ka wela i ke kila ʻōpala e hoʻoheheʻe iā ia e hana i ke kila hou. Hoʻohana nui ʻia nā umu arc uila i nā ʻoihana hana kila a me ka alumini no ka mea he makepono ke hana ʻana. Hiki ke hoʻākoakoa ʻia nā electrodes graphite i loko o nā cylinders no ka mea he ʻāpana lākou o ka uhi umu uila. Ke hele ka ikehu uila i hāʻawi ʻia ma o kēia mau electrodes graphite, hoʻokumu ʻia kahi arc uila ikaika, e hoʻoheheʻe ana i ke kila ʻōpala. Wahi a ke koi wela a me ka nui o ka umu uila, hiki ke hoʻohana ʻia nā electrodes nui like ʻole. I mea e hana ai i 1 tone o ke kila, pono ma kahi o 3 kg o nā electrodes graphite. I ka hana ʻana i ke kila, hiki i ka graphite ke kū i kēlā mau mahana kiʻekiʻe, no laila hiki i ka mahana o ka piko electrode ma kahi o 3000 degere Celsius. ʻO nā nila a me ka petroleum coke nā mea maka nui i hoʻohana ʻia e hana i nā electrodes graphite. He ʻeono mahina e hana ai i nā electrodes graphite, a laila hoʻohana ʻia kekahi mau kaʻina hana, me ka hoʻomoʻa ʻana a me ka hoʻomoʻa hou ʻana, e hoʻololi i ka coke i graphite. ʻOi aku ka maʻalahi o ka hana ʻana i nā electrodes graphite ma mua o nā electrodes keleawe, a ʻoi aku ka wikiwiki o ka hana ʻana no ka mea ʻaʻole ia e koi i nā kaʻina hana hou e like me ka wili lima.
ʻO ke kūkulu ʻana i ka mākeke electrode graphite, ʻo ka hoʻonui ʻia ʻana o ke koi no ke kila i loko o nā ʻoihana aila a me ke kinoea a me nā kaʻa e manaʻo ʻia e hoʻolaha i ka hoʻomohala ʻana o ka mākeke electrode graphite. ʻOi aku ma mua o 50% o ke kila honua i hana ʻia e hoʻohana ʻia i nā ʻoihana kūkulu hale a me nā ʻoihana kūkulu hale. Aia i loko o ka hōʻike nā mea hoʻokele, nā palena, nā manawa kūpono, a me nā ʻano hou i hāʻawi i ka ulu ʻana o ka mākeke i ka wā loiloi. Hoʻopili ka hōʻike i nā ʻano a me nā noi o ka hoʻokaʻawale ʻāina.
ʻO ka electrode graphite kekahi o nā alakaʻi, a he ʻāpana koʻikoʻi ia o ke kaʻina hana kila. Ma kēia kaʻina hana, hoʻoheheʻe ʻia ka hao ʻōpala i loko o ka umu arc uila a hana hou ʻia. ʻO ka electrode graphite i loko o ka umu i hoʻoheheʻe maoli i ka hao. Loaʻa i ka conductivity thermal kiʻekiʻe ka graphite, a he pale wela a me ka hopena. He haʻahaʻa kona kū'ē ʻana, ʻo ia hoʻi hiki iā ia ke alakaʻi i nā kahe nui e pono ai e hoʻoheheʻe i ka hao. Hoʻohana nui ʻia ka electrode graphite i ka umu arc uila (EAF) a me ka umu ladle (LF) no ka hana kila, ferroalloy, silicon metal Hoʻohana ʻia ka electrode graphite i ka umu arc uila (EAF) a me ka umu ladle (LF) no ka hana kila, hana ferroalloy, hana metala silicon a me ke kaʻina hana hoʻoheheʻe.
Uhi ka hōʻike mākeke uila graphite honua i nā mea pāʻani kaulana e like me GrafTech, Fangda Carbon China, SGL Carbon Germany, Showa Denko, Graphite India, HEG India, Tokai Carbon Japan, Nippon Carbon Japan, SEC Carbon Japan, etc. Loaʻa i ka American GrafTech, Fangda Carbon China a me Graphite India ka huina o ka hiki ke hana he 454,000 tons.
Ka manawa hoʻouna: Malaki-04-2021