Principle:
JCL is compact and reasonable in construction, consisting
of a grading device, making the classification of powder into grade
by a single step. It eliminates overground powder, saving the unnecessary
energy requirement. It is connected to draught fan so that the heat
generated can be instantly dissipated. Thus it is applicable to
grind thermal sensitive heat-labile substances. It can be adapted
to various operation conditions giving a narrow distribution of
particle sizes, and can grind chemicals, foodstuffs, pharmaceuticals,
plastics, drugs, cosmetics, dyestuffs, pigments, resins, grains,
etc.
The complete set is vertically installed, consisting of a grinding
chamber and a classifying chamber its construction and working principle
are shown in the figure. In operation, by the negative pressure
produced by a bleeding of steam in the outlet, the feed in a quantitative
rate, passes through screw conveyer and a hopper into the grinding
grathngchamber. The powder produced here goes through a guiding
ring to classifying chamber. As the classfying vane is revolving,
the powder is objected to the influence of air dynamics and centifugal
forces. The coarse particles of dia greater than the critical dia
of classifying return to the grinding chamber. The particles of
dia, Less than critical dia, go through the output pipe to output
pipe to enter the collection.
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