Yiziphi izici zamakhemikhali kasimende? Yikuphi izinto zokwenqaba ezisetshenziswa kakhulu?

Ama-simenti kilns yimishini eshisayo yokukhiqiza i-cement clinker. Ngokuvamile, kunezinhlobo ezimbili zama-kilns abheke phezulu kanye nama-rotary rotns. Ama-shaft kilns abonakala ngemishini elula, ukutshalwa kwezimali okuphansi, nokusebenza kahle okushisayo, kepha ikhwalithi ye-clinker yabo e-calcined ayizinzile ngokwanele, futhi umthamo wokukhiqiza mncane, futhi ujwayele ukusetshenziselwa izitshalo ezincane zikasimende. Uma kuqhathaniswa nomlilo ovundlile, ikhoyili ejikelezayo inezinzuzo eziningi, kepha utshalomali lwayo lukhulu kakhulu

Ukuwa okusimeme okujikelezayo kukasimende ngokuvamile kuhlukaniswe izingxenye ezine: indawo yokushisa ngaphambili, indawo yokubola, indawo yokudubula nendawo yokupholisa. Kwesinye isikhathi isigaba esithile phakathi kwendawo yokudubula nendawo yokupholisa, nengxenye ethile phakathi kwendawo yokudubula nendawo yokubola ibizwa nge-zone yenguquko.

Ulwelwesi lomlilo lwendawo yokudubula yingxenye ebuthakathaka nephukile kuwo wonke umlilo weziko lokujikeleza, ngakho-ke impilo yendawo yokudubula imele impilo yomlilo ojikelezayo. Ulwelwesi lomlilo lomgibeli ojikelezayo kufanele lumelane nemiphumela yokushintsha okuphezulu kwamazinga okushisa nokushisa, futhi kuthinteka nokuguguleka nokugqokwa kwezinto kanye nokuhamba komoya nokuguguleka kwamakhemikhali. Izizathu eziyinhloko zokulimala kwendawo yokupholisa kanye nolwelwesi lwendawo yokufudumeza ukushisa ukuqhuma kwezinto ezibonakalayo nokuguguleka komoya; ngenkathi indawo evuthayo nendawo yokubola ikakhulu ukuguguleka kwamakhemikhali.

Ngaphansi kwezimo zokusebenza ezijwayelekile, kwenzeka okuthile phakathi kukabhilidini womlilo webhande lokudubula kanye nento encibilikisiwe, okuholela entweni encibilikayo ephansi ebambelela ebusweni besikhumba somlilo, okungukuthi, ukwakheka kwesikhumba somlilo. Isikhumba somlilo sinomphumela wokuzivikela kulolo lolo lomlilo, ngakho-ke singanweba impilo yolwelwesi lomlilo. Kodwa-ke, lapho ukusebenza kungavamile, isikhumba somlilo sizolimala noma singafakwa noma sixhunywe ngokungalingani, okuzobangela ukucindezeleka okushisayo kulayini oluminyene futhi kudale umonakalo njengokuxebuka kolwelwesi lomlilo.