Ukuhlukaniswa kwe-bauxite
I-Bauxite, eyaziwa nangokuthi i-bauxite noma i-bauxite, yakhiwa ikakhulukazi i-aluminium oxide futhi iqukethe ukungcola. I-Bauxite inokwakheka okuyinkimbinkimbi ngokwedlulele futhi iyitemu elivamile lezinhlobonhlobo ze-alumina ores enamanzi anemvelaphi ehluke kakhulu yokuma komhlaba.
Ngokusho kokusetshenziswa kwe-bauxite, ihlukaniswe ngebanga le-metallurgical, ibanga lamakhemikhali, ibanga le-refractory, ibanga lokugaya, ibanga likasimende, njll. Isetshenziselwa ukwenza izinto eziphikisayo, lolu hlobo lwe-bauxite lubizwa ngokuthi i-alumina ye-refractory grade. I-bauxite clinker enezilinganiso ezifanele ze-AL2O3/Fe2O3 kanye ne-AL2O3/SiO2 isetshenziselwa ukuncibilikisa i-alumina.
1. Izinga lokushisa eliphezulu le-refractory, ukuqina okushisayo okuqinile, futhi akukho ukuqhekeka. Isihlabathi se-aluminium mullite siwumkhiqizo osuselwa ku-aluminium-silicon. Ngemuva kokubala, ukuqina kwayo kanye nokuzinza kokudlidliza okushisayo kukhulu kakhulu kunesihlabathi se-quartz esinesakhiwo sesigaba sekristalu esakhiwe nge-silicon eyodwa yekristalu. Ayimanziswa kalula yinsimbi ewuketshezi ukuze yenze ukuncibilika okuphansi, okunganqoba isihlabathi se-quartz sine-coefficient enkulu yokushisa okushisayo kanye nesivuno esibi ngesikhathi sokujiya, okuholela ekushiyekeni okufana nokunemba kokusakazwa okuphansi nokunamathela kwesihlabathi.
2. Ukuhlukaniswa kwezinhlayiyana okuhlukile, ukuphefumula okungcono. Isihlabathi se-Foundry sigaywa umshini kaRaymond futhi sixutshwe ngokuvumelana nokuhlukaniswa kwezinhlayiyana ezithile ngesikhathi sokukhiqiza ukuze kuthuthukiswe ukungena komoya kapende. Ngaphezu kwalokho, imikhiqizo ecutshungulwa izigayo zebhola, izinhlayiya zesihlabathi sokuphonsa ezicutshungulwa izigayo zikaRaymond zilawulwa kangcono, futhi ingxenye ye-bauxite clinker ingokwesayensi kakhulu.
3. Izembatho zine-fusion ephezulu, amandla aphezulu kanye nokudiliza kalula. Izinhlobonhlobo ze-refractory coatings zisebenzisa imikhiqizo ye-aluminium-silicon clinker, i-foam elahlekile ye-bauxite clinker powder emihle, ngokusho kwezinhlayiyana ezihlukene ezivela ngaphakathi ngaphandle. Inhlanganisela kusukela kokucwebile kuya kumaholoholo kubangela izinga eliphakeme lokuhlanganisa phakathi kwezingubo; ngenkathi ukwandisa amandla enamathela kanye nokumelana ukuguguleka ukuvimbela izinkinga ezifana nokuwa, kuba lula futhi demould. Futhi i-bauxite mullite iyimpahla engathathi hlangothi, futhi i-bauxite clinker ingasetshenziswa njengokuhlanganisa i-asidi ne-alkali.
