Classification ntawm bauxite
Bauxite, tseem hu ua bauxite los yog bauxite, yog tsim los ntawm txhuas oxide thiab muaj impurities. Bauxite muaj ib tug complex muaj pes tsawg leeg thiab yog ib tug dav lub sij hawm rau ntau yam ntawm hydrous alumina ores nrog txawv heev geological keeb kwm.
Raws li kev siv bauxite, nws tau muab faib ua qib metallurgical, qib tshuaj lom neeg, qib refractory, qib sib tsoo, qib cement, thiab lwm yam. Siv los ua cov ntaub ntawv refractory, hom bauxite no hu ua refractory qib alumina. Bauxite clinker nrog qhov sib piv ntawm AL2O3 / Fe2O3 thiab AL2O3 / SiO2 yog siv los yaj alumina.
1. High refractory kub, muaj zog thermal stability, thiab tsis muaj cracking. Aluminium mullite xuab zeb yog cov khoom siv aluminium-silicon. Tom qab calcination, nws refractoriness thiab thermal vibration stability yog ntau tshaj li ntawm quartz xuab zeb nrog ib tug siv lead ua theem qauv tsim ntawm ib tug siv lead ua silicon. Nws tsis yog yooj yim wetted los ntawm cov kua hlau los ua ib tug tsawg yaj, uas muaj peev xwm kov yeej Quartz xuab zeb muaj ib tug loj thermal expansion coefficient thiab tsis zoo yield thaum lub sij hawm condensation, ua rau shortcomings xws li tsawg casting raug thiab xuab zeb sticking.
2. Sib txawv particle gradation, zoo breathability. Foundry xuab zeb yog hauv av los ntawm Raymond zeb thiab sib tov raws li qhov tshwj xeeb particle gradation thaum lub sijhawm tsim khoom los txhim kho huab cua permeability ntawm cov xim. Tsis tas li ntawd, cov khoom lag luam ua tiav los ntawm cov pob zeb, cov xuab zeb casting ua tiav los ntawm Raymond mills tau tswj tau zoo dua, thiab qhov kev faib ua feem ntawm bauxite clinker yog kev tshawb fawb ntau dua.
3. Cov coatings muaj fusion siab, siab zog thiab yooj yim demoulding. Sib txawv refractory coatings siv txhuas-silicon clinker khoom, poob ua npuas ncauj bauxite clinker hmoov zoo, raws li qhov sib txawv particle gradations ntawm sab hauv tawm. Kev sib xyaw ua ke los ntawm kev nplua mus rau ntxhib ua rau muaj kev sib koom ua ke ntawm cov txheej txheem ntau dua; thaum ua kom cov txheej txheej muaj zog thiab yaig tiv thaiv kom tsis txhob muaj teeb meem xws li kev sib tsoo, nws kuj yooj yim dua rau demould. Thiab bauxite mullite yog cov khoom siv nruab nrab, thiab bauxite clinker tuaj yeem siv los ua cov kua qaub thiab alkali binders.
