Babban tubalin alumina don murhun wuta

Babban tubalin alumina don murhun murhun yana nufin samfuran ƙin yarda waɗanda aka yi daga babban alumina bauxite clinker tare da abun ciki na Al2O3 fiye da 48% kuma ana amfani da su don gina murhun wuta. Tanderu mai fashewa shine babban kayan aikin ƙarfe, kuma tubalin yumɓu shine kayan rufi waɗanda aka yi amfani da su da wuri a cikin tanderun fashewar. Da farko a cikin shekarun 1950, ƙarar murhun wuta ta yi girma zuwa babban sikelin, kuma murhun diamita na 8-12m ya zama gama gari. Yawan aiki ya karu cikin sauri. Koyaya, ƙugiyar tanderu da lalatawar ciki a zahiri yana shafar samar da murhun Ruo. 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.

Tumatir mai ƙyalƙyali manyan tubalin alumina suna nufin samfuran ƙin yarda da aka ƙera daga babban alumina bauxite clinker tare da abun ciki na Al2O3 sama da kashi 48% kuma ana amfani da su don gina murhun wuta.

Tanderu mai fashewa shine babban kayan aikin ƙarfe, kuma tubalin yumɓu shine kayan rufi waɗanda aka yi amfani da su da wuri a cikin tanderun fashewar. Da farko a cikin shekarun 1950, ƙarar murhun wuta ta yi girma zuwa babban sikelin, kuma murhun diamita na 8-12m ya zama gama gari. Yawan aiki ya karu cikin sauri. Koyaya, ƙugiyar tanderu da lalatawar ciki a zahiri yana shafar samar da murhun Ruo.

Sana’a ：

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 katako na aluminium an rarrabe 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.

yi:

a. Refractoriness

Ƙaƙƙarfan babban tubalin alumina ya fi na yumɓu na yumɓu da tubalin siliki, wanda ya kai 1750 ~ 1790 ℃, wanda shine babban abin ƙyama.

b. Load softening zazzabi

Saboda samfuran manyan alumina suna da babban Al2O3, ƙarancin ƙazanta, da ƙarancin gilashin gilashi, zazzabi mai laushi yana da girma fiye da na tubalin yumbu. Koyaya, saboda lu’ulu’u na mullite ba su samar da tsarin cibiyar sadarwa ba, har yanzu zafin zafin da ke ɗaukar nauyi bai kai na tubalin silica ba.

c. Tsayayyar slag

Babban tubalin alumina yana da ƙarin Al2O3, wanda yake kusa da kayan tsaka tsaki na tsaka tsaki, kuma yana iya tsayayya da yaɗuwar acidic slag da alkaline slag. Saboda haɗawa da SiO2, ikon yin tsayayya da slag na alkaline yana da rauni fiye da na slag acidic.

Abubuwan aiwatarwa:

Kayan bauxite na halitta suna buƙatar ƙira mai kyau da rarrabuwa. Ana sarrafa abun cikin oxide na baƙin ƙarfe a cikin binciken sunadarai a ƙasa da kashi 1.2%, kuma ba a ba da izinin ɗora baƙin ƙarfe ko murhun ƙarfe ba. Ana buƙatar babban matsayi da tsarkin tsarki. An ƙera shi da injin bulo mai ƙarfi mai ƙarfi, siffar tubalin na yau da kullun ne, kuma ba a yarda da fasa-katan da ke kama da gidan ba. Tabbatar da ƙimar bulo mai yawa da zafin zafin wuta ba ƙasa da 1500 ℃ ba.