ʻO ka bead drift kahi ʻano pōpō hakahaka lehu lele e hiki ke lana ma luna o ka ʻili wai. He hina keʻokeʻo kona kala, me nā paia lahilahi a hakahaka, a he kaumaha māmā loa. ʻO ke kaumaha o ke anakahi he 720kg/m3 (kaumaha), 418.8kg/m3 (māmā), a ʻo ka nui o ka ʻāpana ma kahi o 0.1mm. Ua pani ʻia a laumania ka ʻili, me ka conductivity thermal haʻahaʻa a me ke kūpaʻa ahi o ≥ 1610 ℃. He mea pale wela maikaʻi loa ia, hoʻohana nui ʻia i ka hana ʻana i nā castables māmā a me ka ʻeli ʻaila. ʻO ka hoʻohui kemika o ka bead lana he silicon dioxide a me ka alumini oxide. Loaʻa iā ia nā ʻano o nā ʻāpana maikaʻi, hakahaka, māmā, ikaika kiʻekiʻe, kūpaʻa ʻaʻahu, kūpaʻa wela kiʻekiʻe, insulation thermal, insulation a me ka pale lapalapa. ʻO ia kekahi o nā mea maka i hoʻohana nui ʻia i ka ʻoihana pale ahi.

ʻO ka bead drift kahi ʻano pōpō hakahaka lehu lele e hiki ke lana ma luna o ka ʻili wai. He hina keʻokeʻo kona kala, me nā paia lahilahi a hakahaka, a he kaumaha māmā loa. ʻO ke kaumaha o ke anakahi he 720kg/m3 (kaumaha), 418.8kg/m3 (māmā), a ʻo ka nui o ka ʻāpana ma kahi o 0.1mm. Ua pani ʻia a laumania ka ʻili, me ka conductivity thermal haʻahaʻa a me ke kūpaʻa ahi o ≥ 1610 ℃. He mea pale wela maikaʻi loa ia, hoʻohana nui ʻia i ka hana ʻana i nā castables māmā a me ka ʻeli ʻaila. ʻO ka hoʻohui kemika o ka bead lana he silicon dioxide a me ka alumini oxide. Loaʻa iā ia nā ʻano o nā ʻāpana maikaʻi, hakahaka, māmā, ikaika kiʻekiʻe, kūpaʻa ʻaʻahu, kūpaʻa wela kiʻekiʻe, insulation thermal, insulation a me ka pale lapalapa. ʻO ia kekahi o nā mea maka i hoʻohana nui ʻia i ka ʻoihana pale ahi.

Hana maikaʻi loa a me ka hoʻohana ʻana i nā momi lana

Ke kūpaʻa ahi kiʻekiʻe. ʻO nā ʻāpana kemika nui o nā momi lana he mau oxide o ka silicon a me ka alumini, me ka silicon dioxide e helu ana ma kahi o 50-65% a me ka aluminium trioxide e helu ana ma kahi o 25-35%. No ka mea, ʻo ke kiko heheʻe o ka silicon dioxide he 1725 degere Celsius, a ʻo ke kiko heheʻe o ka alumini oxide he 2050 degere Celsius, ʻo ia mau mea ʻelua he mau mea refractory kiʻekiʻe. No laila, he kiʻekiʻe loa ke kūpaʻa ahi o nā momi lana, e hiki pinepine ana i 1600-1700 degere Celsius, e hana ana iā lākou i mau mea refractory hana kiʻekiʻe maikaʻi loa. Māmā, hoʻopaʻa ʻia a hoʻopaʻa ʻia. He lahilahi a hakahaka ka paia momi lana, me kahi semi vacuum i loko o ka lua a he liʻiliʻi wale nō ke kinoea (N2, H2, CO2, a pēlā aku), e hopena ana i ka hoʻoili wela lohi loa a me ka liʻiliʻi. No laila, ʻaʻole wale nā ​​​​mīkini lana he māmā (me ke kaumaha o 250-450 kilokani/m3), akā he insulation maikaʻi loa a me ka insulation thermal (me ka conductivity thermal o 0.08-0.1 ma ka mahana o ka lumi), kahi e hoʻokumu ai i ke kumu no ko lākou hiki nui i ke kahua o nā mea insulation māmā. Paʻakikī kiʻekiʻe a me ka ikaika. ʻOiai ʻo ka mīkini lana he aniani paʻakikī i hana ʻia e ka silicon aluminum Oxide mineral phase (quartz a me mullite), hiki i kona paʻakikī ke hiki i Mohs 6-7, hiki i ka ikaika o ke kaomi static ke hiki i 70-140MPa, a ʻo kona density maoli he 2.10-2.20g/cm3, e like me ka pōhaku. No laila, he ikaika kiʻekiʻe nā mīkini lana. ʻO ka mea maʻamau, ʻo nā mea porous māmā a i ʻole nā ​​​​mea hakahaka e like me Perlite, ka pōhaku paila, diatomite, pumice, vermiculite i hoʻonui ʻia, a me nā mea ʻē aʻe he paʻakikī a ikaika ʻole. ʻO nā huahana insulation thermal a i ʻole nā ​​​​huahana refractory māmā i hana ʻia me lākou he hemahema o ka ikaika ʻole. ʻO ko lākou nāwaliwali ka ikaika o nā mīkini lana, kahi e hāʻawi ai iā lākou i kahi pono hoʻokūkū a me kahi ākea o nā hoʻohana. ʻO ka nui o nā ʻāpana liʻiliʻi a me ka ʻili ākea kikoʻī nui. ʻO ka nui o nā ʻāpana kūlohelohe o nā momi lana mai 1 a 250 microns. ʻO ka ʻili ākea kikoʻī he 300-360cm2/g, kahi like me ka sima. No laila, ʻaʻole pono ka wili ʻana i nā momi lana a hiki ke hoʻohana pololei ʻia. Hiki i ka maikaʻi ke hoʻokō i nā pono o nā huahana like ʻole. ʻO nā mea hoʻomehana wela māmā ʻē aʻe he nui nā ʻāpana liʻiliʻi (e like me Perlite). Inā wili ʻia lākou, e hoʻonui nui ʻia ka hiki a e hoʻemi nui ʻia ka hoʻomehana wela. Ma kēia ʻano, he mau pono nā momi lana. Hoʻomehana uila maikaʻi loa. ʻO ka momi lana ma hope o ke koho ʻana i ka momi magnetic he mea hoʻomehana maikaʻi loa ia ʻaʻole e alakaʻi i ka uila. E emi ana ke kū'ē o nā mea hoʻomehana maʻamau me ka piʻi ʻana o ka mahana, ʻoiai e piʻi ana ke kū'ē o nā momi lana me ka piʻi ʻana o ka mahana. ʻAʻole i loaʻa kēia pono i nā mea hoʻomehana ʻē aʻe. No laila, hiki ke hoʻohana ʻia e hana i nā huahana hoʻomehana ma lalo o nā kūlana wela kiʻekiʻe.