Ka lā i kau ai:4,Jul,2022
ʻO kekahi mau mea hana ʻoihana ʻoihana no ka manawa lōʻihi ma 900 ℃ -1100 ℃ kūlana mahana o ka hana, paʻakikī nā mea refractory i kēia mahana e hoʻokō i ke kūlana sintering ceramic, hoʻopilikia koʻikoʻi i ka hana o nā mea refractory, sodium hexametaphosphate i loko o ka refractory castable, spray i ka mea pili. ʻO ka hana o ka pōmaikaʻi he kūpaʻa ikaika compressive maikaʻi a me ke kūpaʻa ʻana a me ke kūpaʻa haʻalulu wela, He mea e kōkua ai i ka hoʻoikaika ʻana i ka hale paʻa o nā refractories, e ʻae ana i nā refractory pauka a i ʻole granular e hoʻopaʻa pū e hōʻike i ka ikaika kūpono.
I loko o ka lōʻihi ulu pōʻaiapuni lako, boiler, no ka laʻana, ma muli o ke kuni ʻana o ka particulate fluidization velocity, kiʻekiʻe wela o ka umu ahi uhi refractory i ikaika erosion, aahu, oi loa aku i loko o nā wahi e like me ka boiler combustion keʻena a me cyclone separator ma lalo o ka palaoa, ea kahe a me ʻO ka uwahi a me ka hopena o ka haʻalulu wela, ke alakaʻi i ka erosion lining refractory, ka ʻaʻahu, ka ʻili ʻana a me ka hāʻule ʻana, Hoʻopilikia nui ia i ka hana maʻamau a me ka hana ʻana o nā paila.
No laila, pono e hoʻomohala i kahi ʻano mea hoʻopaʻa hou me ke kūpaʻa wela kiʻekiʻe, ke kū ʻana o ka erosion, ka pale ʻana a me ke kūpaʻa haʻalulu wela e hoʻomaikaʻi i ka hana o nā mea refractory.
Loaʻa ka sodium hexametaphosphate i ka hoʻohana ʻana i ka refractory castable, spray filler, ma o ke koho ʻana i ka lākiō haku mele a me ka hoʻomākaukau ʻana i ke kaʻina hana, ʻo ka mea hoʻopaʻa ʻia he ʻōnaehana hoʻokuʻu a me ka dispersion me ka waiwai pH kūʻokoʻa, ʻaʻole wale ka adhesion ikaika a me ka non-corrosive i ka metala. matrix, kiʻekiʻe wela kū'ē a me non-inorganic binder noi ana wela laula. Hoʻopili ʻia ka sodium hexametaphosphate i ka sodium dihydrogen phosphate (NaH2PO4) ke hoʻohana ʻia ma ke ʻano he mea hoʻopaʻa i loko o ka refractory castable a me ka hoʻopiha piha.
NaH2PO4 a me ka honua alkaline metala oxides, e like me ka magnesia, hiki ke hana ma ka lumi wela e hana ai i Mg (H2PO4) 2 a me MgHPO4, hiki ke hookuiia i ka magnesium phosphate [Mg (PO3) 2] N a me [Mg2 (P2O7)] N. ma ka wela ma kahi o 500 ℃. Hoʻonui houʻia ka ikaika o ka huiʻana. He ikaika kiʻekiʻe kona ma luna o kahi ākea ākea (a hiki i 800 ℃) ma mua o ka puka hou ʻana o ka pae wai.
Hoʻohana nui ʻia ʻo Sodium hexametaphosphate ma ke ʻano he mea hoʻopaʻa no ka magnesia a me ka magnesia chrome chrome unfired bricks, castables a me nā lako kīʻaha kumu. I ka hoʻomākaukau ʻana i ka castable, pono ke koho ʻia ka ʻike o kāna ʻano wai 25% ~ 30% kūpono, a ʻo ka nui o ka hoʻohui ʻana he 8% ~ 18%. Ma lalo o ke kumu o ka hōʻoia ʻana i ka hana o ka hui ʻana, pono e hoʻohana ʻia i ka liʻiliʻi e hiki ai ke hōʻoia i ka hana wela kiʻekiʻe o ka mea. ʻO ka coagulant paha he aluminate cement a i ʻole nā mea ʻē aʻe i loko o ka calcium.
ʻO nā mea refractory nā mea kumu nui no ka hao a me ke kila, nā mea kūkulu hale, nā metala non-ferrous, petrochemical, mīkini, mana uila, mālama kaiapuni a me nā ʻoihana wela kiʻekiʻe. He mea koʻikoʻi koʻikoʻi ʻo Sodium hexametaphosphate binder no nā ʻuala wela a me nā mea hana kiʻekiʻe.
Ka manawa hoʻouna: Jul-05-2022
