Heating – With heating gas conveying – agitating – scattering or...
Patent
1985-06-11
1986-03-04
Yuen, Henry C.
Heating
With heating gas conveying, agitating, scattering or...
432 78, 432 85, F27B 1500, F27D 1502
Patent
active
045739080
ABSTRACT:
According to the present invention, white cement clinker particles are not burned in a rotary kiln and the burned clinker particles are not immersed in the water to be cooled. White cement clinker raw materials are burned in a fluidized bed burning furnace with a fluid bed or a spouted bed and the clinker particles thus burned are reduced with a reducing gas. The clinker particles thus reduced are first cooled with the water which is sprayed over the clinker particles and then further cooled with the air. The white cement clinker raw material particles fed into the fluidized bed burning furnace are burned into clinker particles while forming a fluidized bed and then the clinker particles thus burned drop through a jet injection pipe into a reduction chamber disposed below the burning furnace and are reduced. The clinker particles thus reduced are rapidly cooled to 600.degree.-700.degree. C. with the sprayed water while being isolated from the surrounding atmosphere in a primary cooling chamber and the clinker particles thus cooled are further cooled in a secondary cooling chamber with the air to 100.degree.-150.degree. C.
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Ichiyanagi Toshikazu
Kawai Zenzaburo
Sekine Shoji
Sudo Kanzaburo
Teshigawara Hiroshi
Chichibu Cement Kabushiki Kaisha
Ishikawajima-Harima Jukogyo Kabushiki Kaisha
Yuen Henry C.
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