I nā hana ʻoihana wela kiʻekiʻe, ʻo ka hana o nā mea refractory e hoʻoholo pololei i ka pono o ka hana ʻana, ka palekana, a me ka kaohi ʻana i nā kumukūʻai.Hoʻoheheʻe ʻia ka sima haʻahaʻa (LCC)ua kū mai ma ke ʻano he hopena hoʻololi pāʻani, i ʻike ʻia e kona haʻahaʻa o ka calcium oxide (≤3%) a me ka hoʻohui sima liʻiliʻi (3%-8%), e hāʻawi ana i nā waiwai refractory maikaʻi loa i hoʻohālikelike ʻia me nā castables kuʻuna. ʻO kona kūpaʻa haʻalulu wela kūikawā, ke kūpaʻa ʻana i ka ʻino ʻana o ka slag, a me ka ikaika wela kiʻekiʻe e lilo ia i mea nui loa ma nā ʻano ʻoihana like ʻole ma ka honua holoʻokoʻa.
ʻO ka ʻoihana metallurgical ka mea nui e pōmaikaʻi ai i ka sima haʻahaʻa, kahi e ʻoi aku ai i nā wahi ʻino a wela kiʻekiʻe. Hoʻohana nui ʻia ia no nā uhi o nā umu mālama wela, nā umu hoʻomehana, a me nā umu rotary, a me nā uhi umu uila a me nā taphole umu pahū. No ka hana kila, hāʻawi ʻo LCC i ka palekana hilinaʻi no nā ladles, tundishes, a me nā ʻauwai umu pahū, e kūʻē ana i ka pala mai ka hao heheʻe a me ka slag kila me ka mālama ʻana i ke kūpaʻa kūkulu ma nā mahana a hiki i 1800 ℃. I ka metallurgy non-ferrous, kūpono ia no nā umu paʻa alumini, nā holoi hoʻoili, a me nā uhi cell electrolytic, mahalo i nā mea hoʻohui e hōʻemi ana i ke komo ʻana o ka metala heheʻe.
Ua hilinaʻi nui ka ʻoihana sima i ka sima haʻahaʻa e hoʻoheheʻe ʻia e hoʻonui i ke kūpaʻa o nā lako hana wela koʻikoʻi. Hoʻohana pinepine ʻia ia i ke kua o ke kilneye, ka uhi wicket, a me ke kua anuanu o nā kiln rotary sima, kahi e kū ai i nā mahana koʻikoʻi a me nā mea abrasive, e hoʻolōʻihi nui ana i ke ola lawelawe lako. ʻO kona porosity haʻahaʻa a me ke kiʻekiʻe o ka density e pale aku i ka nalowale o ka wela, e hoʻomaikaʻi ana i ka pono o ka ikehu a me ka hōʻemi ʻana i ka downtime mālama - nā mea koʻikoʻi no nā mea hana sima e ʻimi nei e hōʻemi i nā kumukūʻai.
Ma waho aʻe o ka metallurgy a me ka sima, lawelawe ka sima haʻahaʻa i nā kuleana like ʻole i nā ʻoihana petrochemical, mana, a me ka mālama ʻōpala. I loko o nā hale hana petrochemical, hoʻopili ia i nā reactors catalytic cracking a me nā pipeline wela kiʻekiʻe, e kūʻē ana i ka erosion kemika a me ka thermal cycling. No ka hana mana, hoʻohana ʻia ia i loko o nā keʻena kuni paila, nā flue, a me nā mea hoʻokaʻawale cyclone, e pale ana i nā mahana kiʻekiʻe a me ka palaho kinoea flue. Hana maikaʻi nō hoʻi ia i nā incinerators ʻōpala, kahi e kūʻē ai i ka palaho mai nā kinoea flue paʻakikī, ʻawahia a me nā ʻāpana lehu abrasive.
Hoʻonui hou ʻia ka versatility o ka haʻahaʻa cement castable e kāna mau koho kūkulu maʻalahi. Loaʻa ma ke ʻano he mau ʻano vibratory a i ʻole self-flowing, hiki ke hoʻolei ʻia, hamo ʻia, a pamu ʻia paha ma kahi, e hoʻololi ana i nā ʻano paʻakikī a me nā wahi paʻakikī ke hiki aku me ka ʻole o ka hoʻopilikia ʻana i ka hana. Hoʻonui ʻia kona ikaika wela kiʻekiʻe me ka mālama wela, e lanakila ana i ka nāwaliwali o nā castables kuʻuna e nalowale ana ka ikaika ma 800-1200℃.
Inā paha no nā umu ʻoihana koʻikoʻi, ka lawelawe ʻana i ka metala hoʻoheheʻe ʻia, a i ʻole nā paipu wela kiʻekiʻe, hāʻawi ka sima haʻahaʻa i ka hana mau a lōʻihi. ʻO kona hui pū ʻana o ke kūpaʻa, ka versatility, a me ka pono o ka ikehu e lilo ia i hopena refractory makemake ʻia no nā ʻoihana wela kiʻekiʻe o kēia wā. E koho iā LCC e hōʻemi i nā kumukūʻai mālama, hoʻomaikaʻi i ka palekana hana, a hoʻokō i nā pahuhopu hana hoʻomau.
Ka manawa hoʻouna: Pepeluali-04-2026
