Abstract:
The apparatus consists of a suspension preheater with a calcining burner, a rotary kiln, a planetary type multicylinder precooler installed into a unitary construction with the rotary kiln and a main cooler and it aims to take away many problems and defects caused by the conventional system having production capacity more than several thousand tons per day.
Abstract:
Preheated combustion air from a clinker cooler to be supplied to a calcining device of a suspention preheater and gas discharged from a rotary kiln (hereafter called kiln exhaust gas) are mixed so as to cool volatile matters contained in the kiln exhaust gas and condense them on the surface of dust contained in the kiln gas. Then volatile matter carrying dust is separated and discharged out of the processing system.
Abstract:
A suspension-type preheating device for powdery raw materials of which device comprises a preheating-with-exhaust-gas system where as a medium for preheating the raw materials is used only hot exaust gas from a burning furnace and a preheating-withcombustion-gas device where only combustion gas independently generated is used as the medium and the device is so arranged that the material streams having passed through the respective preheating devices are combined and finally pass through the last heat transfer stages of the respective devices in series.
Abstract:
The combustion air, which is induced into a calcining furnace (calciner) from the lower end thereof and is vigorously swirled upward along the furnace wall, is burned by a plurality of burners and the negative pressure region may be developed at the center portion of the furnace. The exhaust gases leaving a rotary kiln, in which the calcined raw materials are burned to clinker, are led upwardly from the center of the furnace bottom into the said negative region and mixed with combustion gases. The raw material particles may be fed directly into the said negative region or to kiln exhaust gases so as to be entrained into the said region.
Abstract:
The apparatus consists of a suspension preheater with a calcining burner, a rotary kiln, a planetary type multicylinder precooler installed into a unitary construction with the rotary kiln and a main cooler and it aims to take away many problems and defects caused by the conventional system having production capacity more than several thousand tons per day.
Abstract:
The apparatus consists of a suspension preheater with a calcining burner, a rotary kiln, a planetary type multicylinder precooler installed into a unitary construction with the rotary kiln and a main cooler and it aims to take away many problems and defects caused by the conventional system having production capacity more than several thousand tons per day.