Ungahlukanisa kanjani phakathi kwekhwalithi enhle nekhwalithi embi lapho uthenga izitini eziphakeme ze-alumina?

Ungahlukanisa kanjani ikhwalithi yezitini eziphakeme ze-alumina lapho uthenga izitini eziphezulu ze-alumina? Ngakolunye uhlangothi, kungabonakala ngeso lenyama, ngakolunye uhlangothi, kungatholakala futhi kuhlukaniswe.

Amaphuzu amabili abalulekile abonwa ngamehlo enqunu:

A. Ukungcola kokubukeka

Uma sibheka okuqukethwe ukungcola ebusweni bezitini ezinenkani, sivame ukubona amanye amabala amnyama ebusweni bezitini eziphakeme ze-alumina. Lokhu ukungcola ezintweni zokusetshenziswa. Ngokwethiyori, ukungcola okumbalwa, kungcono, ngoba lokhu kungcola ikakhulu ama-iron oxides. , Imane incishiswe ibe yinsimbi encibilikisiwe ephuma endaweni eshisa kakhulu esithandweni somlilo, yenze umonakalo esakhiweni sezitini esiphikisayo, bese sithinta impilo yensizakalo yesitini esikhanyisayo. Njengomkhiqizo wezimboni, ikhwalithi yezitini ezikhombayo ithinta ngqo izindleko zokukhiqiza nezokukhiqiza zebhizinisi. Izitini eziphikisayo eziphansi ngeke zibange kuphela iziteleka ezahlukahlukene zokulungisa ekukhiqizeni, zenyuse izindleko zokukhiqiza, kepha futhi zonyuse ukwakhiwa nokukhiqizwa. Izingozi eziningi ezifihliwe ezingenakuqagelwa.

B. Ukubukeka kombala nobuso bokuthambisa

Ukubona isitini esikhombayo, sidinga ukubona umbala wokubukeka nokuthambisa kwesitini. Ikhwalithi yezitini ezithile ezikhanyayo ayisihle kakhulu, futhi i-lubricity engaphezulu ayiyinhle neze, okuholela ekuqineni kwezitini ezikhombayo. Ukufana kokubukeka nombala wesitini esikhombisayo kukhombisa ukuthi ngabe izinto zixubene ngokulinganayo ngesikhathi kwenziwa isitini esikhombisayo. Ukusatshalaliswa okungalingani kwezinto kuzoholela ekusatshalalisweni okungalingani kwamandla wezitini ezikhombayo, bese kunciphisa amandla jikelele kanye nempilo yesevisi yezitini eziphikisayo.

Amaphuzu amathathu ayinhloko ahlukaniswa ngokuthola:

A. Ukumelana kweSlag

Isitini esiphakeme se-alumina siqukethe i-Al2O3 eningi, okuyinto ebonakalayo engathathi hlangothi futhi ingasetshenziswa endaweni ene-alkaline noma ene-asidi. Ngoba iqukethe i-silica silicon SIO2, ukumelana kwe-slag endaweni ene-alkaline kungcono kunaleyo emvelweni one-asidi.

B. Layisha ukushisa kokuthambisa

Ngenxa yokuthi imikhiqizo ene-alumina ephezulu ine-Al2O3 ephezulu, ukungcola okuncane, nengilazi engacoleki kangako, izinga lokushisa lokuthambisa umthwalo liphakeme kunelezitini zobumba, kepha ngenxa yokuthi amakristalu e-mullite awenzi isakhiwo senethiwekhi, izinga lokushisa lokusetshenziswa alifani nelika izinkomba ezi-siliceous. .

C. Refractoriness

Ukuphinda kukhanye kwezitini eziphakeme ze-alumina kuphakeme kunezitini zobumba, kufinyelela kuma-1750 degrees Celsius kuya ku-1790 degrees Celsius, okuyizinto ezisezingeni eliphakeme zokuphikisa.

Le ndlela engenhla iyindlela yokuhlukanisa ikhwalithi yezitini eziphakeme ze-alumina, ngithemba ukuthi kuzoba wusizo kuwe.