T38 babban tubalin alumina (nau’in wuka)

T38, t39 manyan tubalin alumina sune manyan abubuwan da aka samar da manyan alumina bauxite; ma’adanai na rukunin sillimanite (gami da kyanite, andalusite, sillimanite, da sauransu); albarkatun kasa na roba, kamar alumina na masana’antu, mullite na roba, wutar lantarki Fused corundum da sauransu. Babban alumina banadium na kasar Sin yana da wadataccen albarkatu kuma yana da kyau kwarai da gaske. An rarraba wuraren da ake samarwa musamman a Shanxi, Henan, Hebei, Guizhou, Shandong da sauran wurare. Babban alumina bauxite da aka samar galibi shine cakuda bauxite (α-Al2O3 · H2O) da kaolinite.

Babban tubalin alumina abu ne mai tsaurin tsaka tsaki tare da abun cikin alumina ba kasa da 60%ba. An kafa shi kuma an ƙera shi daga bauxite ko wasu albarkatun ƙasa tare da babban abun ciki na alumina. Masana’antarmu tana samar da manyan tubalin alumina tare da kwanciyar hankali mai ɗorewa da ƙima sama da 1700 ℃. Kyakkyawan juriya na slag galibi ana amfani da shi don rufin murhun murhu, murhun wuta mai zafi, rufin murhun wutar lantarki, murhun murhu, murhun reverberatory, da murhun wuta. Babban samfuran masana’antar mu sune manyan tubalin manyan alumina (watau tubalin T-head) T-3 T38 T39 T19 T20 T23 T7 T52, manyan tubalin alumina masu fasali na musamman, tubalin murƙushe murhun murfin G1 G2 G3 G4 G5 G6 tubalin baka mai kusurwa da sauran manyan tubali masu ƙyalli.

1. Sauƙaƙƙiya: Rarraba t38 da t39 manyan tubalin alumina sun fi na yumɓu na yumɓu da tubalin siliki, sun kai 1750 ~ 1790 ℃, waɗanda ke cikin kayan haɓaka mai ci gaba.

2. Load softening zazzabi: Saboda samfuran aluminium suna da babban Al2O3, ƙarancin ƙazanta, da ƙarancin gilashi mai ɗaci, nauyin laushi mai nauyi yana da girma fiye da tubalin yumɓu da manyan tubalin alumina, amma saboda lu’ulu’u na mullite basa samar da tsarin cibiyar sadarwa, Zazzabi mai laushi a ƙarƙashin kaya har yanzu bai kai na sililin siliki ba.

3. Tsayayyar Slag: manyan tubalin alumina sun ƙunshi ƙarin Al2O3, wanda yake kusa da kayan tsaka tsaki, kuma yana iya tsayayya da yaɗuwar acid slag da alkaline slag. Tun da ya ƙunshi SiO2, ikon yin tsayayya da slag alkaline ya fi na slag acidic. Mai rauni. Tsarin samarwa na manyan tubalin alumina da tubalin yumɓu mai yawa iri ɗaya ne. Bambanci shine cewa adadin clinker a cikin sinadaran ya fi girma, wanda zai iya kaiwa 90-95%. Ana buƙatar rarrabewa da murɗawa don cire baƙin ƙarfe kafin murƙushewa, da zafin zafin wuta Mafi girma, kamar Ⅰ, Ⅱ manyan tubalin alumina gabaɗaya 1500 ～ 1600 ℃ lokacin da aka harba su a cikin ramin rami. Aikin samarwa a China ya tabbatar da cewa kafin murƙushewa, babban alkinin clinker an zaɓi shi sosai kuma an rarrabe shi, kuma an adana shi cikin matakan. Yin amfani da clinker bauxite da haɗar yumɓu mai kyau na niƙa na iya haɓaka ingancin samfur. An fi amfani da shi don gina murhun murhun wuta, murhun wuta mai zafi, da rufin murhun wutar lantarki. , Tanderu mai fashewa, murhu mai jujjuyawa, rufin murhun wuta, da dai sauransu.

Babban tubalin alumina mai ƙyalƙyali, wato, abin ƙyalli na silicate na aluminium tare da abun alumina fiye da 48%. An kafa shi kuma an ƙera shi daga bauxite ko wasu albarkatun ƙasa tare da babban abun ciki na alumina. Babban kwanciyar hankali na zafi, ƙanƙantar da kai sama da 1770 ℃. Tsarin juriya ya fi kyau.

Yawanci an kasu kashi huɗu:

Class I: Al2O3 abun ciki ≥75%;

Class Ⅱ: Abun ciki na Al2O3 60%~ 75%;

Class Ⅲ: Abun cikin Al2O3 shine 48%~ 60%;

Aji na musamman: abun cikin AL2O3 ≥80%.

Hakanan ana iya rarrabe shi gwargwadon abun da ke cikin ma’adinai, gabaɗaya ya kasu kashi biyar: low mullite (sillimanite), mullite, mullite-corundum, corundum-mullite da corundum.

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