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In Japanese) Coal briquettes are manufactured with this mixing-heating apparatus. It includes a spiral vane positioned on the outer surface of rotation shaft for mixing raw materials along guideways of axial direction and a heating method for heating the raw materials. Heating is done inside the rotation shaft by passing the heating medium through a hollow pipe and injection nozzles installed on the rotation shaft. The injection nozzles of the heating medium are adjacently fitted along the axial direction of non-guiding surface of the vane and the direction of nozzle injection is positioned towards the moving direction of the shaft.
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In Japanese) Coal briquettes are manufactured with this mixing-heating apparatus. It includes a spiral vane positioned on the outer surface of rotation shaft for mixing raw materials along guideways of axial direction and a heating method for heating the raw materials. Heating is done inside the rot
Bituminous coals produced in the Ostrava-Karvina coal basin show considerable variation in their maceral composition, vitrinite reflectance and fluidity. There is a close association of the latter with the H/O atomic ratio expressing the different chemico-structural properties of vitrinites of lower
Coke formed during early operations of the coal slurry preheater in the 250 t d -' EDS coal liquefaction pilot plant (ECLP) was examined by polarized light microscopy. The coke was optically anisotropic, having mosaic textures resulting from mesophase carbonization. The presence of mesophase in heat