METHOD OF CALCULATION OF AN INDUSTRIAL MODEL OF JET-SLOT MILK HOMOGENIZER
Keywords:
milk, homogenization, calculation, jet-slot homogenizer, productivity, energy efficiencyAbstract
Improving the energy efficiency of the dairy dispersion process is an urgent task as more than 8 kW/h of electricity is
consumed per ton of the product. The results of prospective studies suggest that a significant reduction in energy
costs for homogenization can be achieved through the development and implementation of structures, the principle of
which is based on the maximum difference between the velocities of the dispersion (skim milk) and the dispersed
(cream) phases of the product. An example of such a design is a jet-slot homogenizer of milk, the energy costs of
which, according to the results of analytical and experimental studies, are 5-7 times lower than the most common in
the industry designs of valve dispersants. To implement the developed structures and practical implementation of the
obtained results in the conditions of real production, it is necessary to develop a method of calculation of an
industrial model of jet-slot homogenizer of milk. In order to achieve this goal, the article presents initial data for the
calculation of the basic design, hydraulic, technological parameters of an industrial model jet-slot homogenizer in
their relation to the average diameter of the fat globules after dispersion, the power of the drives of the pumps and the
specific energy consumption. Among the parameters that are determined by the sequence of calculation are the
productivity of skim milk and cream, the velocity of skim milk, the diameter of the chamber at the place of
maximum constriction, the velocity of cream, the excess pressure of the supply pumps of the dispersion and
dispersed phase, the power of the pumps and the specific energy consumption. The article provides information on
selected pumps, electric motors, and gears used to supply skim milk and cream. The basic design parameters of the
equipment for productivity of 1000, 2500, 5000 and 10000 kg/h are calculated. The obtained results will allow
developing an industrial model, to draw up technical documentation and to submit it to the manufacturer for
introduction into technological processes of milk processing and calculation on the basis of the obtained data of
economic efficiency of implementation of an industrial model of a jet-slot homogenizer of milk with separate
supplying of cream.
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