Ke hoʻomau ka slurry huelo o ka mine i ka pipeline i ka wikiwiki, i ka wā e hoʻomau ka holoi ʻana i ka pā i loko o ka hale hana metallurgical, a i ka wā e hoʻoheheʻe ʻia ai ka pā paipu i kēlā me kēia lā e ka waika ikaika i loko o ka hale hana kemika - e lele pinepine nā pipeline metala maʻamau ma hope o kekahi mau mahina. Akā aia kekahi ʻano pipeline e hiki ke ola i loko o kahi "purgatory industrial" me ka ʻole, a he mea ia.paipu pale ʻaʻahu i hana ʻia me ka carbide silikae like me ka mea kumu. He aha ke ʻano o ka naʻauao waiwai e hūnā ʻia e kēia mea ʻenehana maʻamau?
ʻO kahi code mea ʻoi aku ka paʻakikī ma mua o ke kila
Ua hoʻomaka ka moʻolelo o ka silicon carbide i ka hopena o ke kenekulia 19 i ka ʻike ʻana o nā ʻepekema i kēia pūhui paʻakikī i ka wā e hoʻāʻo ana e hana i ke daimana synthetic. He mea kakaikahi loa ia ma ke ʻano a ua ʻike ʻia ʻo ia ʻo "Moissanite", ʻoiai ʻo ka silicon carbide i hoʻohana ʻia i ka ʻoihana i kēia lā ua aneane pau loa ia i kahi huahana o ka synthesis artificial.
ʻO ka mea huna o ka hana ʻana i nā paipu carbide silicon no laila "kūʻokoʻa i ka hana ʻana" aia i kā lākou microstructure kūʻokoʻa. Ma lalo o kahi microscope electron, hōʻike nā kristal carbide silika i kahi ʻano tetrahedral e like me ke daimana, me kēlā me kēia ʻātoma silika i hoʻopuni paʻa ʻia e nā ʻātoma kalapona ʻehā, e hana ana i kahi ʻuena hoʻopaʻa covalent hiki ʻole ke haki. Hāʻawi kēia hale i ka paʻakikī lua wale nō i ke daimana, me ka paʻakikī Mohs o 9.5, ʻo ia hoʻi, ʻo ka hoʻomau mau ʻana o ke one quartz (Mohs hardness o 7) paʻakikī ke haʻalele i nā meheu.
ʻO ka mea kakaʻikahi, ʻaʻole paʻakikī wale ka silicon carbide, akā paʻa loa i nā wela kiʻekiʻe. Ma kahi wela kiʻekiʻe o 1400 ℃, hiki iā ia ke mālama i nā waiwai mechanical paʻa, kahi e hana maikaʻi ai i nā hiʻohiʻona kiʻekiʻe e like me ka lawe ʻana i ka pauka lanahu i nā kapuahi hao kila a me ka hoʻokuʻu ʻana o ka boiler slag i ka mana wela. I ka manawa like, he "immune" ia i ka hoʻoneʻe ʻana o ka hapa nui o nā waikawa a me nā alkalis, a ʻoi aku ka waiwai o kēia kūpaʻa corrosion i nā pipeline hoʻoili waika ikaika i ka ʻoihana kemika.
Hoʻolālā i ka manaʻo noʻonoʻo e hoʻonui i ke ola o ka pipeline he ʻumi
ʻAʻole lawa ka paʻakikī maʻalahi no ka hoʻokō ʻana i nā kaiapuni ʻoihana paʻakikī. Hoʻohana ʻia nā pipeline kūpaʻa silicon carbide o kēia wā i nā hale hana ʻoi aku ka maikaʻi: ʻo ka maʻamau ʻo ka ʻaoʻao o waho he kila kalapona maʻamau e hāʻawi ana i ke kākoʻo kūkulu, ʻo ka ʻaoʻao o loko he silicon carbide ceramic lining, a ʻo kekahi mau pipelines e uhi i ka fiberglass ma waho e hoʻonui ai i ka ikaika holoʻokoʻa. ʻAʻole kēia hoʻolālā e hoʻohana wale i ka pono pale pale o ka silicon carbide, akā uku pū kekahi i ka brittleness o nā mea seramika.
E hana pū nā mea ʻenekinia i ka "hoʻolālā ʻokoʻa" e pili ana i ke kiʻekiʻe o ka lole o nā ʻāpana like ʻole o ka pipeline. No ka laʻana, inā ʻoi aku ka paʻakikī o ka ʻāʻī waho o ka kuʻekuʻe, e hoʻohana ʻia kahi lining silicon carbide mānoanoa; Inā maʻalahi ka ʻaʻahu o loko, pono e hoʻoheheʻe ʻia e hōʻoia i ka lōʻihi a pale i ka pau ʻole.
ʻO ka hoʻohana ʻana i ka ʻenehana sintering reaction e hana maikaʻi loa i nā pipeline carbide silika. Ma ka hoʻomalu pono ʻana i ka mahana a me ka lākiō waiwai maka, hiki i ka mea ke hoʻokō i kahi kūlana paʻa me ka aneane ʻole porosity, ʻoiai e hoʻolauna ana i nā ʻāpana graphite e hana i kahi papa lubricating ponoʻī. Ke hoʻoheheʻe ka wai i ka pipeline, hana ka papa graphite i kahi kiʻi pale, e hoʻemi hou i ka coefficient friction, e like me ke kau ʻana i kahi "lubrication armor" ma ka pipeline.
Mai ka laina koko ʻoihana a hiki i ka wā e hiki mai ana
I nā ʻoihana koʻikoʻi e like me ka mana wela, mining, metallurgy, a me ka ʻenekinia kemika, ʻo nā ʻōnaehana pipeline e like me ka "ʻoihana bloodline", a pili pono ko lākou hilinaʻi i ka palekana hana a me ka pono. Pono e hoʻololi pinepine ʻia nā paipu metala maʻamau i loko o 3 mau mahina ma nā wahi ʻaʻahu ikaika, ʻoiai ke ola lawelawe o nā paipu kūpaʻa silicon carbide hiki ke hoʻonui ʻia ma mua o 10 mau manawa, e hōʻemi nui ana i ke alapine o ka mālama downtime.
Hāʻawi kēia ʻano lōʻihi i nā pono kaiapuni nui. ʻO ka hoʻemi ʻana i ka hoʻololi ʻana i ka pipeline, ʻo ia ka hoʻemi ʻana i ka hoʻohana ʻana i ke kila, a me nā ʻenehana hoʻoheheʻe holomua i hoʻohana ʻia i ke kaʻina hana (e like me ke ʻano ESK) hiki ke hoʻihoʻi i ke kinoea ʻōpala no ka hana mana, hoʻonui i ka hoʻohana ʻana i ka ikehu e 20%. I nā kahua e kū mai ana e like me ka hana ʻana o ka pākaukau lithium a me nā lako pale o ke kaiapuni, ke pāʻani nei ka corrosion a me ka pale ʻana o nā paipu carbide silicon.
Ke kamaʻilio nei mākou e pili ana i ka holomua ʻoihana, nānā pinepine mākou i kēlā mau huahana ʻenehana kiʻekiʻe, akā maʻalahi ka nānā ʻana i nā "heʻe ma hope o nā hiʻohiʻona" e like me nā paipu pale pale silicon carbide. ʻO kēia ka mea hou e hoʻonui i nā waiwai o nā mea kumu e kākoʻo i ka hana kūpono o ka ʻoihana hou. Mai nā mines a i nā hale hana, mai nā umu wela kiʻekiʻe a hiki i nā hale hana kemika, ke hāʻawi nei kēia mau 'pale pale ikaika' i ka palekana a me ka hoʻomau ʻana o ka hana ʻoihana ma ko lākou ala ponoʻī.
Ka manawa hoʻouna: Iulai-30-2025