Difference between solid and liquid mixing

Difference between solid and liquid mixing: Industrial applications involve the mixing of solids to solids such as free-flowing solids to pasty materials, solids to liquids, and solids to gas, liquids to liquids, and liquids to gas.

Liquid mixingSolid mixing
(i) Fluid mixing is generally associated
with liquid-liquid mixing and liquidgas mixing.
(i) Mixing of solids to some extent
resembles the mixing of low-viscosity
(ii) Liquid mixing depends on the creation
of flow currents, which transport
unmixed material to the mixing zone
adjacent to the impeller.
(ii) In heavy masses of particulate solids
there are no such currents possible
and mixing is accomplished by some
other means.
(iii) Power required for mixing and
the blending of liquids is less.
(iii) Power required for mixing of dry solids
is comparatively higher.
(iv) In liquid mixing, a well-mixed product
is usually a truly homogenous liquid
(iv) In solid mixing the product often
consists of two or more easily
identifiable phases, each of which may
contain individual particles of
considerable size.
(v) A “well-mixed” liquid product samples
are homogenous in nature.
(v) A “well-mixed” solid product samples
differ markedly in composition.
(vi) Design, construction, and operation of
fluid mixing equipment are specific
and are termed as liquid agitators.
(vi) Design, construction, and operation of
solid mixing equipment are different
than liquids and are commonly
referred to as mixers and blenders.
(vii) The liquid mixing technology has been
extensively studied and understood.
(vii) The understanding of solid mixing,
and the design of solid mixers is an art
rather than a science.
(viii) The liquid mixing technology is simple.viii) Solid mixing is more complex.
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