ʻO nā refractory insulation thermal e pili ana i nā refractory me ka porosity kiʻekiʻe, haʻahaʻa haʻahaʻa haʻahaʻa, a me ka haʻahaʻa haʻahaʻa haʻahaʻa, ʻike ʻia hoʻi he refractory māmā. Hoʻopili ʻia nā huahana refractory insulating wela, nā fibers refractory, a me nā huahana fiber refractory. E like me ka hoʻohana ʻana i ka mahana: haʻahaʻa haʻahaʻa haʻahaʻa insulation refractory mea, ʻoi aku ka haʻahaʻa o ka hoʻohana ʻana ma mua o 900 ℃, e like me ka diatomite insulation bricks, hoʻonui i nā huahana silica, silica calcium papa, hoʻonui i nā huahana perlite, etc.; ʻO nā refractory mehana wela, hoʻohana i ka mahana 900 ~ 1200 ℃, e like me ka pālolo thermal insulation refractory bricks, aluminika silicate refractory fiber, etc.; ʻOi aku ka nui o ka mahana hoʻohana ma mua o 1200 ℃, e like me ke kiʻekiʻe alumini thermal insulation refractory bricks, alumina thermal insulation refractory bricks, siliceous Insulation refractory brick, alumina hollow ball brick, zirconia hollow ball brick, high alumina refractory fiber, polycrystalline refractory fiber (polycrystalline alumina fiber, polycrystalline zirconia fiber, polycrystalline mullite fiber), etc.
Hoʻohana nui ka hana ʻana i nā huahana refractory wela-insulating i nā ʻano kaʻina hana e hiki ai ke hana i kahi ʻano porous, e like me ke ʻano māmā māmā, ke ʻano o ka puhi ʻana, ke ʻano foam, a me ke ʻano kemika. ʻO nā fibers refractory Amorphous, e like me nā alumini silicate refractory fibers, nā alumina refractory fibers kiʻekiʻe, a me nā mea ʻē aʻe, e hana pinepine ʻia e ka hoʻoheheʻe ʻana. ʻO nā fibers refractory polycrystalline, e like me nā mullite fibers, alumina fibers, etc., ua hana ʻia e ke ʻano colloid.
ʻO nā hiʻohiʻona nui o nā refractory insulating he porosity kiʻekiʻe, ma luna o 45%; ʻAʻole ʻoi aku ma mua o 1.5g/cm3; haʻahaʻa thermal conductivity, ka hapanui emi ma mua o 1.0W/(m·K). Hoʻohana nui ʻia e like me ka insulation thermal o nā kapuahi ʻoihana, ʻaʻole hiki iā ia ke hōʻemi wale i ka nalowale o ka wela o ka umu, akā e hōʻemi hoʻi i ka mālama ʻana i ka wela o ka umu, loaʻa ka hopena hoʻōla maikaʻi loa, a hoʻemi i ke kaumaha o nā mea wela. Ke hoʻohālikelike ʻia me nā pōhaku lepo refractory maʻamau, ʻoi aku ka maikaʻi o ka pale ʻana i ka palaka, ka ikaika mechanical, a me ke kūpaʻa ʻana. No laila, ʻaʻole kūpono ia no ka hoʻokumu ʻana i ka ukana o ka kiln a me nā ʻāpana e pili pono ana me ka slag, charge, molten metal, etc.
ʻO ke ʻano hoʻohālikelike o nā huahana refractory insulation
ʻO nā huahana refractory thermal insulation e pili ana i nā huahana refractory me kahi porosity ʻaʻole i emi iho ma lalo o 45%. ʻO nā hiʻohiʻona nui o nā huahana refractory heat-insulating he porosity kiʻekiʻe a me ka haʻahaʻa haʻahaʻa haʻahaʻa. He haʻahaʻa ka conductivity thermal, liʻiliʻi ka mana wela, a maikaʻi ka hana insulation wela. He mea mālama i ka wela a me ka wela. Hiki ke hoʻohana ʻia ma ke ʻano he papa insulation thermal no nā mea wela like ʻole, a hiki ke hoʻohana ʻia kekahi ma ke ʻano he papa hana. He mea mālama i ka ikehu no ke kūkulu ʻana i nā kiln like ʻole. ʻO ka hoʻololi ʻana i nā huahana refractory wela-insulating no nā huahana refractory maʻamau maʻamau e like me nā mea kūkulu hale umu hiki ke hōʻemi i ka waiho ʻana o ka wela a me ka nalowale o ka wela ma 40% a i 50%, ʻoi aku no nā lako wela hoʻopau.
Nui nā ʻano o ka insulation a me nā huahana refractory, i hoʻokaʻawale ʻia i ʻekolu mau ʻāpana e like me ka hoʻohana ʻana i ka mahana, ka nui nui, a me ke ʻano o ka huahana.
(1) Hoʻokaʻawale ʻia e ka nui o ke kino. ʻO ka poʻe me ka nui nui o 0.4 ~ 1.3g / cm3 he mau pōhaku māmā; ʻO ka poʻe me ka mānoanoa nui ma lalo o 0.4g/cm3, he mau pōhaku māmā loa.
(2) Hoʻokaʻawale ʻia e ka mahana hana. E hoʻohana i ka mahana 600 ~ 900 ℃ no ka haʻahaʻa haʻahaʻa insulation mea; 900 ~ 120 ℃ no ka mea hoʻonā wela wela; ʻoi aku ma luna o 1200 ℃ no ka mea hoʻonā wela kiʻekiʻe.
(3) Hoʻokaʻawale ʻia e ke ʻano huahana: hoʻokahi ke ʻano o nā pōhaku makamae refractory, me ka pālolo, alumina kiʻekiʻe, silika, a me kekahi mau pōhaku māmā māmā; ʻO ka mea ʻē aʻe he mau pōhaku ʻaʻai māmā ʻole, E like me ka māmā refractory concrete.
ʻOkoʻa ke ʻano hana o nā huahana refractory heat-insulating mai nā mea maʻamau maʻamau. Nui nā ʻano, ʻo ia hoʻi ke ʻano o ka incineration, ke ʻano o ka foam, ke ʻano kemika, a me ke ʻano mea porous.
1) Ke puhi ʻana a me ka hoʻohui ʻana i ke ʻano mea. Kāhea ʻia ke ʻano o ka hoʻohui ʻana i nā mea puhi ahi. E hoʻohui i nā mea puhi maʻalahi e puhi, e like me ka lanahu, ka ʻōpala, a me nā mea ʻē aʻe, i loko o ka lepo hana pōhaku i mea e loaʻa ai nā pores o ka huahana ma hope o ke kī ʻana.
2) Ke ʻano hoʻoinu. E hoʻohui i nā mea hoʻohāhā, e like me ke kopa rosin, a me nā mea ʻē aʻe i ka pālolo no ka hana ʻana i nā pōhaku lepo, a hana i ka huʻa ma ke ʻano mechanical. Ma hope o ke kī ʻana, loaʻa kahi huahana porous.
3) Keʻano kemika. Me ka hoʻohana ʻana i ka hopena kemika e hiki ke hoʻohua pono i ke kinoea, loaʻa kahi huahana porous i ka hana ʻana i nā pōhaku lepo, maʻamau dolomite a i ʻole periclase me ka gypsum, a me ka sulfuric acid ma ke ʻano he mea hoʻohua.
4) Keʻano mea porous. E hoʻohana i ka honua diatomaceous maoli a i ʻole ka ʻūhā pālolo hana ʻia, nā alumina a i ʻole zirconia hollow spheres, a me nā mea maka porous e hana i nā pōhaku lepo māmā.
Ke hoʻohana nei i nā huahana refractory insulation me ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa a me ka liʻiliʻi o ka wela wela e like me ke kino o ka umu ahi hiki ke mālama i ka ʻai wahie; hoʻomaikaʻi i ka pono hana hana; Hiki iā ia ke hoʻemi i ke kaumaha o ke kino umu, hoʻomaʻamaʻa i ke ʻano o ka umu ahi, hoʻomaikaʻi i ka maikaʻi o ka huahana, a hoʻemi i ka mahana ambient. E hoʻomaikaʻi i nā kūlana hana. Hoʻohana nui ʻia nā huahana refractory insulation e like me ka papa insulation wela, ka uhi a i ʻole ka insulation layer o kiln
1. Alumina insulation refractory bricks
Alumina wela-insulating refractory bricks hoʻohana fused corundum, sintered alumina, a me ka ʻoihana alumina e like me ka mea nui maka mea e hana i ka wela-insulating refractory huahana i ikaika ka waika a me ka alkali ea kū'ē a me ka ho'ēmi kū'ē kū'ē, a me ka maikaʻi thermal haʻalulu kū'ē. Hiki ke hoʻohana no ka manawa lōʻihi ma lalo o 1700 ℃. Hoʻohana ʻia kāna kaʻina hana i ʻelua ʻano o ke ʻano o ka foam a me ke ʻano hoʻohui i ka incineration. ʻO nā huahana i hana ʻia e ke ʻano o ka foam i nā hiʻohiʻona o ke ʻano like ʻole, ka haʻahaʻa haʻahaʻa haʻahaʻa, a me ka hana insulation thermal maikaʻi.
Alumina wela-insulating refractory bricks he māmā, me ka ikaika compressive kiʻekiʻe, haʻahaʻa thermal conductivity, haʻahaʻa leo shrinkage ma hope o ka hou-a ana, a me ka maikaʻi thermal haʻalulu kū'ē. Hiki iā lākou ke hoʻohana ʻia no nā papa insulation wela o nā mea wela wela a i ʻole nā kapuahi e pili pono ana me nā lapalapa. A ʻo ka uhi hana o nā lako wela kūpono, akā ʻaʻole kūpono ia no ka wahi corrosion e pili pono ana i ka wai umu ahi a me ka slag hoʻoheheʻe. Loaʻa iā ia ke kūpaʻa kiʻekiʻe ke hoʻohana ʻia i kahi lewa hoʻohaʻahaʻa. ʻO ka mahana hoʻohana e pili ana i ka maʻemaʻe o ka huahana, maʻamau a hiki i 1650 ~ 1800 ° C. E nānā i ka Papa 3-105 no nā kuhikuhi kikoʻī maʻamau o ia mau huahana.
2. High-aluminum wela-insulating pōhakuʻo refractory
ʻO nā pōhaku kiʻekiʻe-aluminum wela-insulating refractory nā huahana refractory wela me ka maʻiʻo o ka liʻiliʻi ma lalo o 48% i hana ʻia mai ka mea nui. Hana ʻia nā pōhaku lepo kiʻekiʻe alumina thermal insulation refractory i ka bauxite e like me nā mea maka, i hui pū ʻia me ka pālolo e like me nā mea maka, i hui pū ʻia me nā mea hoʻopaʻa a me ka sawdust. No ka hoʻomaikaʻi ʻana i ka hana huahana, hoʻohui ʻia ka alumina ʻoihana, corundum, sillimanite, kyanite, a me ka silica. Hiki ke hana ʻia ka pauda maikaʻi i mau huahana me nā ʻano nui like ʻole a me nā wela hoʻohana ʻokoʻa. ʻO ka maʻamau, ʻo ka mahana hoʻohana ʻo 1250 ~ 1350 ℃, a hiki i kekahi ke hiki i 1550 ℃.
ʻO nā pōhaku lepo insulation kiʻekiʻe e hana nui ʻia e ke ʻano foam, a ʻo ka nui o ka nui o ka huahana ma waena o 0.4 ~ 1.0g / cm3, a hiki ke hana ʻia e ke ʻano o nā mea hoʻohui. Hōʻike ʻia nā ʻōlelo kuhikuhi kino a me nā kemika o nā pōhaku kiʻekiʻe-aluminum wela-insulating refractory ma ka Papa 3-106.
Hiki ke hoʻohana ʻia nā pōhaku lepo hoʻoheheʻe kiʻekiʻe me ka alumini no ke kūkulu ʻana i nā ʻāpana wela a me nā ʻāpana ʻaʻole i ʻā ʻia a ʻāwili ʻia e nā mea hoʻoheheʻe ikaika. Ke pili pololei me ka lapalapa, ʻaʻole ʻoi aku ke kiʻekiʻe o ka wela o ka ʻili o nā pōhaku kiʻekiʻe-aluminika wela-insulating refractory ma mua o 1350 ℃. Hiki i ka Mullite heat-insulating refractory bricks ke hoʻopili pololei i ka lapalapa, a loaʻa iā ia nā hiʻohiʻona o ke kūpaʻa wela kiʻekiʻe, ikaika kiʻekiʻe, a me ka hopena hoʻōla ikaika. He kūpono ia no ka uhi ʻana o nā kapuahi pyrolysis, nā umu wela wela, nā kīwī kīwila seramika, nā kiln porcelain drawer uila, a me nā kapuahi kū'ē like ʻole. ʻO ka corundum-mullite heat-insulating refractory brick me kahi Al2O3 maʻiʻo o 82.4% hiki ke hoʻohana ʻia ma ke ʻano he uhi umu ma 1550°C.
3. Pālolo-ma muli o ka insulation refractory bricks
ʻO nā pōhaku lepo hoʻomaʻamaʻa wela ka wela me ka 30% -48% Al2O3 maʻiʻo i hana ʻia i ka pālolo refractory ma ke ʻano he kumu nui, me ka hoʻohana ʻana i ka pālolo refractory, nā pahu lana, a me ka clinker pālolo refractory e like me nā mea maka, e hoʻohui i nā mea hoʻopili a ʻōpala. Me ka hui ʻana, ka hui ʻana, ka hana ʻana, ka maloʻo ʻana, a me ke kī ʻana, hiki ke loaʻa nā huahana me ka nui o ka 0.3 ~ 1.5g / cm3, a ʻoi aku ka nui o ka nui o ka hapa o ka wela-insulating refractory bricks.
ʻO ke kaʻina hana maʻamau o ka pālolo wela-insulating refractory brick ʻo ia ke ʻano hoʻohui ʻana me nā pahu lana, a hiki ke hoʻohana pū ʻia ke ʻano o ka huʻa. E nānā i ka Papa 3-107 no nā papa kuhikuhi kino o ka pālolo-hoʻokolo ʻana i ka wela.
Loaʻa i ka pālolo ka wela-insulating refractory bricks i ka laulā o nā noi. Hoʻohana nui ʻia lākou i nā mea wela a me nā kiln ʻoihana. Hiki ke hoʻohana ʻia no nā ʻāpana ʻaʻole i ʻino a holoi ʻia e nā mea hoʻoheheʻe ikaika kiʻekiʻe. Hoʻopili ʻia kekahi mau ʻili e pili pono ana me ka lapalapa me kahi ʻāpana Refractory coating hiki ke hōʻemi i ka erosion e ka lepo a me ka lepo umu ahi a hōʻemi i ka pōʻino. ʻAʻole ʻoi aku ka mahana hana o ka huahana i ka mahana hoʻāʻo o ka laina hoʻihoʻi. No ke ʻano mea hoʻoheheʻe māmā me nā pores he nui. ʻO kēia mea he porosity o 30% a 50%, a ʻilihune kona insulation thermal, akā maikaʻi kona ikaika mechanical a me ke kūpaʻa corrosion.
4. Silicone insulation refractory bricks
ʻO ka siliceous heat-insulating refractory brick ua hana ʻia me ka silica e like me ka mea nui, a me ka huahana refractory heat-insulating me SiO2 ma lalo o 91%. Ma waho aʻe o nā waiwai insulation thermal, mālama nā pōhaku silika refractory i nā hiʻohiʻona o nā pōhaku silika i ka nui. He kiʻekiʻe ka mahana hoʻomaka o ka haʻalulu haʻahaʻa, a hoʻonui iki ka leo i ka wā o ka hoʻomehana ʻana, kahi e hoʻonui ai i ka pono o ka kiln.
ʻO ka hana o ka GGR-1.20 papa o ka siliceous heat-insulating refractory bricks no nā umu ahi i kuhikuhi ʻia ma ka China Metallurgical Industry Standard YB386-1994, ʻaʻole i ʻoi aku ka nui o ka nui ma mua o 1.2g/cm3, ʻaʻole emi ka ikaika compressive i ka lumi mahana. ma mua o 5MPa, a ʻo ka mahana hoʻomaka o ka palupalu ma lalo o ka ukana ma lalo o 0.1MPa ʻaʻole i emi iho ma mua o 1520 ℃, ʻaʻole emi ka SiO2 ma lalo o 91%.
He kūpono kēia huahana no ka uhi ʻana o nā kiln ʻoihana a i ʻole nā papahana insulation wela i pili ʻole me nā mea hoʻoheheʻe wela kiʻekiʻe a ʻaʻole i ʻike pono ʻia i nā kinoea corrosive. ʻAʻole ʻoi aku ka mahana o ka hana masonry ma mua o 1550 ° C.
Silica-ma muli o ka wela-insulating refractory bricks i oi poino i ke kino kanaka ma muli o ka silica lepo, a me ke kaʻina hana i oi paʻakikī ma mua o ka pālolo a me ka kiʻekiʻe-aluminum wela-insulating refractory bricks, a me ka helu no ka hapa uuku o ka huina puka o. nā mea hoʻopaʻa ʻana i ka wela.
5. Diatomite insulation refractory bricks
ʻO ka diatomite thermal insulation brick kahi huahana refractory thermal insulation i hana ʻia me ka diatomite ma ke ʻano he kumu nui. ʻO ka diatomite thermal insulation brick he mau pores paʻa paʻa, porosity kiʻekiʻe, hoʻokō insulation thermal maikaʻi, akā haʻahaʻa haʻahaʻa mechanical ikaika, ʻoi aku ma hope o ka pulu, emi nui ka ikaika. ʻO SiO2 kona haku mele, a me Al2O3, a me ka hao a me ka potassium. , Sodium, calcium, magnesium oxides a me nā mea haumia ʻē aʻe.
Hōʻike ʻia nā ʻano kikoʻī kino o nā pōhaku insulation diatomite ma ka Papa 3-108. ʻAʻole kiʻekiʻe ka wela o ka hoʻohana ʻana i ka wela wela, a ʻo ka refractoriness wale nō ma kahi o 1280 ℃. Hiki ke hoʻohana wale ʻia i loko o ka papa insulation ma lalo o 900°C.
6. Hoʻonui i nā huahana perlite
ʻO nā huahana perlite i hoʻonui ʻia nā huahana refractory wela-insulating i hana ʻia me ka perlite ma ke ʻano nui. ʻO nā huahana insulation i hana ʻia me ka perlite i hoʻonui ʻia e like me ka sima a me ke kūpono, ke aniani wai, ka phosphate, a me nā mea ʻē aʻe, ma hope o ka hoʻoulu ʻana, ka hui ʻana, ka hana ʻana, ka hoʻomaloʻo ʻana, ka ʻala ʻana a me ka hoʻōla ʻana. ʻOi aku ka liʻiliʻi o ka nui o ka perlite i hoʻonui ʻia, ma ke ʻano he 40~120g/cm3 wale nō; ʻAʻole kiʻekiʻe ka refractoriness, maʻamau 1280 ~ 1360 ° C. ʻOkoʻa ka mahana hoʻohana kiʻekiʻe o nā huahana me nā mea hoʻopili like ʻole, maʻamau ma lalo o 1000°C.
Hoʻokaʻawale ʻia nā huahana perlite i hoʻonui ʻia i 200, 250, 300 a me 350kg / m34 mau ʻāpana e like me ka nui o ka nui o nā huahana i ke kūlana aupuni. E like me ke ʻano o ka sima i hoʻohana ʻia, ua māhele ʻia ʻo ia i nā huahana perlite hoʻonui i hoʻonui ʻia, nā huahana perlite i hoʻonui ʻia i ka wai aniani, nā huahana perlite hoʻonui ʻia i ka phosphate, a me nā huahana perlite i hoʻonui ʻia i ka asphalt.
7. Hoʻonui i nā huahana vermiculite
ʻO nā huahana vermiculite i hoʻonui ʻia he mau huahana refractory wela me ka vermiculite i hoʻonui ʻia ma ke ʻano he kumu kumu. Hoʻokumu ʻia ka hana ʻana o nā huahana vermiculite i hoʻonui ʻia ma kahi nui o ka vermiculite i hoʻonui ʻia e like me ka hōʻuluʻulu ʻana, e hoʻohui i nā admixtures a me nā mea hoʻopaʻa, e hui pū me ka wai i kekahi ʻāpana, a me ka hoʻokumu ʻana, hoʻomaloʻo, ʻānai a hoʻōla paha e hana i nā huahana insulation thermal. ʻO nā huahana me nā density nui like ʻole, admixtures, a me nā mea hoʻopaʻa ʻokoʻa ka nui o ka hoʻohana ʻana i nā mahana wela, a hoʻohana mau ʻia nā papa insulation wela ma lalo o 1000°C. Nui nā ʻano o nā huahana vermiculite i hoʻonui ʻia, i hoʻokaʻawale ʻia e like me ke ʻano o ka mea hoʻopili i hoʻohana ʻia a me ke ʻano o ka aggregate i hoʻohana ʻia. Wahi a ka mea hoʻopaʻa paʻa, hiki ke hoʻokaʻawale ʻia i nā huahana hoʻopaʻa paʻa organik, nā huahana hoʻopaʻa paʻa inorganic a me nā huahana a me nā mea hoʻopaʻa paʻa ʻole. E like me ke ʻano o ka aggregate i hoʻohana ʻia, hiki ke hoʻokaʻawale ʻia i nā huahana aggregate hoʻokahi, nā hui lehulehu a me nā huahana admixture.
ʻO ka vermiculite i hoʻonui ʻia he haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, ikaika haʻahaʻa, a ʻaʻole hiki ke wai wai, no laila ua kaupalena ʻia kāna noi. Ke hoʻohana ʻia ka mea sima ikaika kiʻekiʻe e hoʻopaʻa i ka vermiculite i hoʻonui ʻia i loko o kahi huahana i hoʻopau ʻia, e ʻoi aku ka ikaika ma mua o ka vermiculite i hoʻonui ʻia a hiki ke kū i ka ukana ʻoi aku; i ka hoʻohana ʻana i nā mea hoʻoheheʻe wai ʻole e hoʻopaʻa pū i ka vermiculite i hoʻonui ʻia, He hana wai ka hopena o ka huahana a hiki ke hoʻohana ʻia i kahi wai. ʻOi aku ka kiʻekiʻe o ka conductivity thermal o ka mea hoʻopili ma mua o ka vermiculite i hoʻonui ʻia, no laila, ʻo ka hoʻohui ʻana o ka mea hoʻopili e hoʻohana hou i ka pōhaku oyster i hoʻohana hou ʻia, akā e hoʻemi ana i ka hopena insulation thermal o vermiculite hoʻonui.
8. Papa silika calcium
Hana ʻia ka papa silicate calcium me ka honua diatomaceous a me ka lime ma ke ʻano he kumu nui, a ʻo nā huahana refractory wela-insulating i hana ʻia e ka hoʻohui ʻana i ka fiber i kapa ʻia ʻo ka calcium silicate board a me ka microporous calcium silicate board. Hoʻokaʻawale ʻia ka papa silicate calcium i ʻelua mau ʻāpana e like me kona haku ʻana: ʻo kekahi ka papa calcium silicate maʻamau, ʻo ka hui kemika o CaO/SiO2 e pili ana i 0.8, ʻo ka mineral ka tobermorite (tobermorite, 5CaO·6SiO2·5H2O); ʻO ka mea ʻē aʻe ʻo Calcium hard silicate, ʻo ka haku mele ʻana o CaO/SiO2 ma kahi o 1.0, a ʻo ka hui mineral he calcium hard silicate.
Loaʻa nā waiwai maikaʻi o ka calcium silicate e like me ka liʻiliʻi liʻiliʻi, ka hoʻokaʻawale ikaika, ka haʻahaʻa haʻahaʻa haʻahaʻa, ka hana kūpono, a me ka helu haʻahaʻa haʻahaʻa. ʻO ka nui o ka nui o ka calcium silicate papa i ʻōlelo ʻia ma ka honua ʻaʻole i ʻoi aku ma mua o 220kg/m3, a ua māhele hou ʻia kekahi i 33 mau ʻano ʻaʻole i ʻoi aku ma mua o 220kg/m3, ʻaʻole i ʻoi aku ma mua o 170kg/m3, a ʻaʻole ʻoi aku ma mua o 130kg/m; Ua helu ʻia ʻo Kina ma mua o 240kg /cm3, ʻaʻole ʻoi aku ma mua o 220kg/cm3, ʻaʻole ʻoi aku ma mua o 170kg/cm 33 mau ʻano. Aia ka ikaika compressive ma luna o 0.4MPa, ʻoi aku ka ikaika flexural ma luna o 0.2MPa; ka thermal conductivity (70 ℃ ± 5 ℃) ʻo 0.049～0.064W/(m·K) ka mahana hana kiʻekiʻe loa, a ʻo ka torbe mullite he 650 ℃ , ʻO ke ʻano silicate calcium he 1000 ℃.
Hiki ke ʻoki a kui ʻia ka papa silicate calcium, a hiki ke hana ʻia i papa, poloka a i ʻole nā pahu. Hiki ke hoʻohanaʻia e like me nā mea hoʻoheheʻe wela no nā paipu wela a me nā kapuahiʻoihana i ka mana uila, kaʻoihana kemika, ka metallurgy, nā moku, a pēlā aku; ahi a me ka wela insulation o na hale, mea kani a me ka lako, Hiki ke hoʻohana 'ia no ka wela insulation papa o kiʻekiʻe-mehana hoʻomaloʻo kiln a me tunnel kiln kaʻa anuu; ʻO nā ʻaoʻao ʻelua o ka papa silicate calcium hiki ke hoʻopili ʻia me ka veneer plastic, plywood, asbestos cement board, etc. Hiki ke hoʻohana ʻia ma ke ʻano he mea wela. ʻO ka hapa nui o nā mea ʻenehana insulation thermal i ka honua e hoʻohana ana i ka papa silicate calcium, a ua hoʻohana kekahi mau ʻāina i ka papa silicate calcium no ka insulation thermal i ka ʻoihana no 70% a 80%.
9. Pilikia ʻĀpana Lana (Cenosphere Brick)
ʻO nā pōhaku lepo Cenosphere nā huahana refractory wela-insulating i hana ʻia me nā cenospheres ma ke ʻano he kumu kumu. I nā makahiki 1970 mua, hoʻomaka koʻu ʻāina e hoʻohana i nā cenospheres lehu lele no ka hana ʻana i nā pōhaku makamae me ka pālolo. Ma muli o ke kaʻina hana maʻalahi a me ka nui o nā kumuwaiwai, maikaʻi ka maikaʻi o ka huahana. Mai ka makahiki 1980, ua hoʻohana ʻia ke ʻano porous clinker a i ʻole ka hoʻohui ʻana o nā cenospheres lehu lele no ka hana ʻana i nā pōhaku lepo Cenosphere.
ʻO nā pōhaku lepo Cenosphere he mau pōʻai hakahaka o ke aniani silicate aluminika i lana mai ka lehu lele mai nā mea kanu wela. Loaʻa iā ia ke kaumaha māmā, ka paia lahilahi, ka hakahaka, ka ʻili maʻemaʻe, ka conductivity thermal haʻahaʻa, ka hana insulation maikaʻi, ka refractoriness kiʻekiʻe, a me ka ikaika compressive kiʻekiʻe. A me nā hana ʻē aʻe. Me ka hoʻohana ʻana i kēia mau hiʻohiʻona o nā cenospheres, hiki ke hana ʻia nā mea refractory heat-insulating me ka hana mālama mālama wela. Hiki ke hanaʻia ka hanaʻana o nā pōhaku lepo cenosphere e keʻano semi-dry, kahi hana maʻalahi aʻaʻole pono i ka hana hoʻopau.
ʻOi aku ka maikaʻi o nā pōhaku Cenosphere ma mua o nā mea hoʻokalakupua wela i waena o nā poloka ma ke ʻano o ka ikaika mechanical, ke kūpaʻa kiʻekiʻe o ka wela, ka conductivity thermal, a me ka hoʻohana ʻana i ka hana, a ua hoʻohālikelike ʻia me nā silicate fibers. Hoʻohana nui ʻia kēia mea i nā kiln ʻoihana kiʻekiʻe kiʻekiʻe ma kahi mahana o 1200 ° C no ka hoʻokō ʻana i ke kumu o ka hoʻomaikaʻi ʻana i ka hana wela a me ka hoʻemi ʻana i ka ikehu. Hoʻohana ʻia nā pōhaku Cenosphere i nā kiln ʻoihana a me nā mea wela kiʻekiʻe i ka metallurgy, mīkini, kemika, petroleum, nā mea kūkulu hale, nā ʻoihana māmā, nā mana uila a me nā ʻāpana ʻē aʻe. ʻO ka maʻamau, hiki iā lākou ke mālama i ka ikehu e 15% a 40%. He ʻano hou maikaʻi o ka ʻāpana māmā. Mea wela.
10. ʻO nā pōhaku lepo pōʻalo
He pōhaku poʻo pōʻai alumina
ʻO ka alumina hollow sphere brick kahi huahana refractory wela me ka alumina hollow sphere ma ke ʻano he kumu kumu. ʻO nā hōʻailona ʻenehana maʻamau o ka alumina hollow sphere bricks: ʻaʻole i emi iho ka ʻikepili Al2O3 ma mua o 98%, ʻaʻole i ʻoi aku ka nui o ka ʻike SiO2 ma mua o 0.5%, ʻaʻole ʻoi aku ka nui o ka ʻike Fe2O3 ma mua o 0.2%, ʻo ka nui o ka nui he 1.3 ~ 1.4g/cm3, ʻike ʻia ka porosity. ʻO 60% ~ 80%, ʻAʻole emi ka ikaika compressive ma mua o 9.8MPa, ʻaʻole emi ka mahana palupalu o ka ukana (0.2MPa) ma lalo o 1700 ℃, a ʻo ka conductivity thermal he 0.7 ~ 0.8W / (m·K).
Hoʻohālikelike ʻia me ka insulation thermal maʻamau a me nā huahana refractory, ʻike ʻia ka alumina hollow sphere brick e ka nui o nā pores pani i loko o ka huahana. No laila, loaʻa iā ia ka ikaika kiʻekiʻe a me ka hoʻolālā pore paʻa, haʻahaʻa haʻahaʻa a me ka conductivity thermal haʻahaʻa. Hoʻohana nui ʻia ia no ka wela kiʻekiʻe ma lalo o 1800 ℃ Industrial kiln linings, e like me ke kiʻekiʻe kiln lining bricks i ka refractory, electronics, a me nā ʻoihana ceramic; nā papa hana hoʻoheheʻe wela no nā mea wela wela, e like me nā kapuahi hoʻoheheʻe i loko o ka ʻoihana petrochemical, nā kapuahi kinoea, nā mea hoʻoheheʻe ʻoihana lanahu, nā pōhaku insulation no nā kapuahi induction i ka ʻoihana metallurgical.
B Zirconia poʻo poʻo pōhaku lepo
ʻO ka zirconia hollow sphere brick he huahana refractory heat-insulating i hana ʻia me nā zirconia hollow spheres ma ke ʻano he kumu kumu. ʻO ka ʻāpana kristal nui o kēia pōhaku he cubic zirconia (e pili ana i 70% a 80% o ka hui mineral), a ʻo kāna hana maʻamau: ʻOi aku ka refractoriness ma mua o 2400 ℃, ʻo ka porosity ʻike ʻia he 55% ~ 60%, ka nui o ka nui. ʻO 2.5 ~ 3.0g / cm3, ʻaʻole emi ka ikaika compressive ma mua o 4.9MPa, a ʻo ka conductivity thermal he 0.23 ~ 0.35W / (m·K).
ʻO Zirconia hollow spheres he mau huahana refractory wela me ka hana maikaʻi loa. ʻO ka mahana hoʻohana palekana kiʻekiʻe he 2200 ℃. ʻO nā pōhaku lepo zirconia hollow sphere he kiʻekiʻe ke kiʻekiʻe kiʻekiʻe ka ikaika o ka wela a me ka hoʻolālā pore paʻa, no laila hiki ke hoʻohana palekana ʻia i kahi wela kiʻekiʻe o 2200 ℃. He haʻahaʻa loaʻo ZirCConia mau kīwī haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa,ʻaʻohe mea e hikiʻole ke hōʻemi i kaʻeha wela, akā hōʻemi hoʻi i nā lako wela. No laila, ma ke ʻano he mea lining kiʻekiʻe e pili pono ana i ka lapalapa i nā mea wela e like me ka metallurgy, petroleum, ʻoihana kemika, uila, etc. maikaʻi ka hopena.
Ka manawa hoʻouna: Nov-26-2021