Ulwakhiwo oluphambili lweziko lokujikeleza kwekalika lubandakanya iqokobhe lecylindrical elide elenzelwe ukuthambeka okuncinci. Yenziwe ngentsimbi ephezulu{1}}eyomelele, iqokobhe lihonjiswe ngobushushu{2}}izinto ezikwaziyo ukumelana nobushushu kudonga lwangaphakathi kwaye zixhonywe ngokuqinileyo kwiseti yeassembly zerola ezixhasayo. Ukuqhutyelwa yinkqubo yokuhambisa, i-kiln iqhuba kakuhle kwisantya esincinci sokujikeleza, ngokuqhelekileyo ukusuka kwi-1 ukuya kwi-4 ukujikeleza ngomzuzu. Ixhotyiswe ngeseti epheleleyo yezixhobo ezincedisayo ezibandakanya ii-preheaters, izixhobo zokupholisa, izitshisi zemizi-mveliso kunye nabaqokeleli bothuli, yonke iyunithi yenza umgca wokuvelisa i-lime calcination ezenzekelayo, engaphazamisekiyo.
Umsebenzi weziko ubambelela kumbindi wethiyori wokubuyela umva-ukuhamba kotshintshiselwano lobushushu kunye nenqanaba eliphezulu{1}}lokubala ubushushu, kwaye umsebenzi wayo wonke wemveliso yahlulwe yangamanqanaba amathathu angundoqo:
Ukutyisa kunye ne-Preheating Stage
Izinto ezikrwada ze-limestone zihanjiswa kwi-preheater ngesixhobo sokutyisa esizenzekelayo. Idityaniswe nentshukumo ejikelezayo yeziko kunye nokutsalwa komxhuzulane, ezi zixhobo zihamba kancinane zisiya kwicala elisezantsi lentloko. Ngeli xesha, iintlobo ezininzi zezibaso ezinje ngamalahle acoliweyo kunye nerhasi yendalo ziyatofwa kwaye zivuthiswe entloko, zivelisa{2}}irhasi yobushushu obuphezulu obuhamba ecaleni kwe-axis ye-onti ukusuka entloko ukuya emsileni. Counter - flow uqhagamshelwano phakathi kwerhasi yombane kunye nemathiriyeli ehambayo ifezekisa ukutshintshiselana kobushushu, okuphelisa ukufuma kwizinto ezikrwada kwaye igqibezela ukulungiselela ukufudumeza kwangaphambili ukubola kwe-thermal yekalika.
I-Calcination kunye ne-Decomposition Stage
Xa imathiriyeli ekrwada isiya kwindawo -yobushushu obuphakathi kwecandelo lobushushu obuphakathi kwe-1200–1400 degree, ukubhukuqa okuqhubekayo kunye nokuxuba kwenza ukuba udibane olupheleleyo{3}}nerhasi yobushushu obuphezulu. Kule ndawo ishushu kakhulu, i-calcium carbonate (CaCO₃) ifumana impendulo epheleleyo ye-pyrolysis, ivelisa i-quicklime egqityiweyo (CaO) kunye ne-carbon dioxide (CO₂). Ukuwa okuthe gqolo kwemathiriyeli kuqinisekisa ukufudumeza okufanayo kuyo yonke inkqubo yokubala, ngocoselelo kuthintela inxenye phantsi{6}}ukutshisa nangaphezulu{7}}iziphene zokutshisa. Le ndlela yokusebenza iyodwa iqinisekisa ngokusisiseko umgangatho ozinzileyo nongaguqukiyo weemveliso zekalika zokugqibela.
Inqanaba lokupholisa kunye nokukhupha
Emva kokugqiba{0}}ukubalwa kobushushu obuphezulu, i-quicklime efanelekileyo igqithiselwa kwisipholile esihambelanayo sokupholisa umoya ngenkani. Umoya opholileyo opholileyo ompontshelwa kwindawo epholileyo ufunxa inkunkuma yobushushu obuphezulu{2}}ikalika yobushushu kwaye ujike ubengumoya oshushu, inxalenye yawo ijikeleziswa ukubuyisela kwintloko ye-oven njengokutsha{3}}ukuxhasa umoya ukuqonda inkunkuma yokwenziwa ngokutsha kobushushu nokunciphisa ukusetyenziswa kwamandla. Ekugqibeleni, irhasi yenkunkuma ekhutshwe kwi-kiln tail ifumana unyango olubanzi lokusingqongileyo olubandakanya ukususwa kothuli, i-desulfurization kunye ne-denitrification, ukuhlangabezana nemigangatho esemthethweni yokukhupha ngaphambi kokuba ikhutshelwe emoyeni.
