T38 izitena zealumnium ephezulu (uhlobo lwemela)

I-T38, i-t39 izitena eziphezulu ze-alumina zezona zinto ziphambili ze-alumina bauxite ephezulu; sillimanite iqela lezimbiwa (kubandakanya ikyanite, andalusite, sillimanite, njl.); izinto zokwenziwa eziluhlaza, ezinje nge-alumina yoshishino, i-mullite yokwenziwa, umbane weFused corundum njalo njalo. I-alumina banadium ephezulu ityebile kwizibonelelo kwaye igqwesile ekubunjweni. Iindawo zokuvelisa zisasazwa eShanxi, eHenan, Hebei, eGuizhou, eShandong nakwezinye iindawo. I-alumina bauxite ephezulu evelisiweyo ikakhulu ngumxube we-bauxite (α-Al2O3 · H2O) kunye ne-kaolinite.

Izitena zealumini ephezulu yinto ebonakalayo engathathi hlangothi enomxholo we-alumina ongekho ngaphantsi kwe-60%. Yenziwe kwaye yabalwa kwi-bauxite okanye ezinye izinto ezinomxholo ophezulu wealumumina. Umzi-mveliso wethu uvelisa izitena eziphezulu zealuminium ezinokuqina okuzinzileyo kobushushu kunye nokuphinda ubonwe ngaphezulu kwe-1700 ℃. Ukuxhathisa okuhle kwe-slag kusetyenziswa ubukhulu becala kulungelelwaniso lwamatye okuqhushumba, umlilo oshushu wokudubula, uphahla lomlilo wombane, amaziko odubulo, amaziko okubuyisela, kunye neekilns ezijikelezayo. Ezona mveliso ziphambili kwifektri yethu zizitena eziphezulu zealuminium (okt izitena zentloko ye-T) T-3 T38 T39 T19 T20 T23 T7 T52, izitena ezimile okwe-alumina ezikhethekileyo, isitena sokuqhushumba izitena G1 G2 G3 G4 G5 G6 izitena arch kwikona kunye nezinye izitena zokwakha ezikumgangatho ophezulu.

1. Ukubuya kwakhona: Izitena zodidi oluphezulu ze-t38 kunye ne-t39 ziphezulu kunezitena zodongwe kunye nezitena ezinesilica, ezifikelela kwi-1750 ~ 1790 ℃, ezizezinto ezinqabileyo eziphambili.

2. Layisha ubushushu bokuthambisa: Ngenxa yokuba iimveliso zealuminium ephezulu ineAl2O3 ephezulu, ukungcola okuncinci, kunye neglasi encinci ye-fusible, ubushushu obuthambisa umthwalo buphezulu kunezitena zodongwe kunye nezitena eziphezulu zealumum, kodwa ngenxa yokuba amakristale e-mullite awenzi ubume benethiwekhi, iqondo lobushushu elithambisayo phantsi komthwalo awukabikho phezulu njengowezitena zesilica.

3. Ukuxhathisa kwe-slag: izitena eziphezulu zealumni ziqulethe i-Al2O3 engaphezulu, ekufutshane nezinto ezingathathi hlangothi, kwaye inokumelana nokhukuliseko lwe-slag ene-acid kunye ne-alkaline slag. Kuba iqulethe i-SiO2, ukubanakho ukumelana ne-alkaline slag kubhetele kune-acidic slag. Ebuthathaka. Inkqubo yokuveliswa kwezitena eziphezulu zealumni kunye nezitena zodongwe ezininzi ziyafana. Umahluko kukuba inani le-clinker kwizithako liphezulu, elinokuthi libe phezulu njenge-90-95%. I-clinker kufuneka ihlelwe kwaye isuswe ukuze isuse i-iron ngaphambi kokutyunyuzwa, kwaye iqondo lokudubula liphezulu, njenge-Ⅰ, Ⅱ izitena eziphezulu ze-alumina zihlala zi-1500 ～ 1600 ℃ xa zidutyulwa kwitonela yethonela. Umsebenzi wokuvelisa e-China ubonakalisile ukuba ngaphambi kokutyunyuzwa, i-high-alumina clinker ikhethwe ngokungqongqo kwaye yahlelwa, kwaye igcinwe kumanqwanqwa. Ukusetyenziswa kwe-bauxite clinker kunye nodongwe oludityanisiweyo lokugaya indlela inokuphucula umgangatho wemveliso. Ubukhulu becala isetyenziselwa ukwakha udubulo, amaziko oshushu, kunye nophahla lomlilo wombane. , Isithando somlilo, isithando somlilo, i-rotary lining lining, njl.

Izitena eziphakamileyo ze-alumina, oko kukuthi, izinto ze-aluminium silicate ezibonakalayo ezinomxholo we-alumina ongaphezulu kwe-48%. Yenziwe kwaye yabalwa kwi-bauxite okanye ezinye izinto ezinomxholo ophezulu wealumumina. Uzinzo olushushu oluphezulu, ukuphindaphinda okungaphezulu kwe-1770 ℃. Ukuxhathisa kwe-slag kungcono.

Ngokwesiqhelo yahlulwe yangamacandelo amane:

Udidi I: Umxholo weAl2O3 ≥75%;

Udidi Ⅱ: Umxholo weAl2O3 60% ~ 75%;

Udidi Ⅲ: Umxholo weAl2O3 ngama-48% ~ 60%;

Iklasi ekhethekileyo: Umxholo we-AL2O3 ≥80%.

Inokuhlelwa ngokwendlela eyakhiwe ngayo izimbiwa, ngokubanzi yahlulwe yangamacandelo amahlanu: i-mullite ephantsi (sillimanite), mullite, mullite-corundum, corundum-mullite kunye ne-corundum.

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