Hoʻoheheʻe ʻia ka sima haʻahaʻa: Paʻa i ka hana kiʻekiʻe no nā ʻoihana mahana kiʻekiʻe o kēia wā

ʻO ka low cement castable (LCC) kahi refractory monolithic kiʻekiʻe i hoʻohana nui ʻia no nā uhi umu wela kiʻekiʻe ʻoihana. Loaʻa iā ia kahi ʻike sima calcium aluminate haʻahaʻa o3% a i 8%. Ke hoʻohana nei i ka ʻenehana pauka ultrafine a me ka gradation particle i hoʻonui ʻia, lanakila ia i nā hemahema maʻamau o nā castables sima kiʻekiʻe kuʻuna a lawelawe ma ke ʻano he hopena refractory koho kiʻekiʻe no nā ʻano ʻoihana wela kiʻekiʻe, corrosive a abrasive.

ʻO ka ikaika nui o ka mea nonaʻano kūloko paʻa a paʻa hoʻiʻO nā mea hoʻoheheʻe kuʻuna me ka nui o ka sima e hana i nā pores he nui a me nā hui hydration nāwaliwali ma hope o ka hoʻōla ʻana a me ke ahi ʻana, e hopena ana i ka paʻa ʻole o ka mahana kiʻekiʻe. Hoʻololi nā mea hoʻoheheʻe sima haʻahaʻa i ka hapa nui o nā mea hoʻopaʻa sima me nā ʻāpana ultrafine reactive e hoʻopiha ana i nā hakahaka ma waena o nā aggregates, e hoʻohaʻahaʻa ana i ka porosity a hoʻonui i ka nui o ka bulk. Hāʻawi kēia i ka ikaika mechanical kiʻekiʻe, ka paʻa o ka leo maikaʻi loa, a me ke kūpaʻa ikaika i ka emi ʻana o ka mahana kiʻekiʻe a me ka nahā.

Hana maikaʻi loa ka sima haʻahaʻa i hoʻoheheʻe ʻia ma lalo o nā kūlana hana koʻikoʻi. He hiʻohiʻona kupaianaha iake kūpaʻa haʻalulu welaa kūʻē i ka ʻili ʻana a me ka nahā ʻana i ka wā o nā loli mahana nui. Hāʻawi pū ia i ke kūpaʻa abrasion maikaʻi loa a me ke kūpaʻa kemika e kūʻē i ka ʻino ʻana mai ke kinoea flue wela kiʻekiʻe, ka slag a me nā mea kemika ʻoihana.

He hana kūkulu maikaʻi loa kēia mea hoʻoheheʻe. ʻAʻole pono ka wai a hāʻawi i ka wai maikaʻi a me ka hana no ka ninini haʻalulu a me ke kālai ʻana i hoʻohui ʻia. Hoʻokumu ianā uhi monolithic seamlesse pale aku ai i nā nāwaliwali o ke ʻano hana o ka hana piliki.