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Personne àcontacter Ms. Ellen
Tangshuang Town Industrial park, Weihui city, Henan province, Zhengzhou, Henan
Rotary Kiln
Rotary kiln is a pyroprocessing device and used to raise materials to a high temperature(calcinations) in a continuous process. Material produced using rotary kilns include: cement, lime, refractories, metakaokin, titanium dioxide, alumina, vermiculite. They are also used for roasting a wide variety of sulfide ores prior to metal extraction.
Main Features and Working Principle of Rotary Kilns:
The kiln is a cylindrical vessel, inclined slightly to the
horizontal, which is rotated slowly about its axis. The material to
be processed is fed into the upper end of the cylinder. As the kiln
rotates, material gradually moves down towards the lower end, and
may undergo a certain amount of stirring and mixing. Hot gases pass
along the kiln, sometimes in the same direction as the process
material(co-current),but usually in the opposite
direction(counter-current).The hot gases maybe generated in an
external furnace, or may be generated by a flame inside the kiln.
Such as flame is projected from a burner-pipe(or firing pipe which
acts like a large Bunsen burner. The fuel for this may be gas, oil
or pulvierized coal.
