FIELD: technological processes.
SUBSTANCE: invention relates to a method for producing a dried powder from a mixture of a diluent and a powder in an installation. Installation contains the first drying chamber, which is a reverse-mixing drying chamber, containing one or several heating elements; and the second drying chamber. Mixture of powder and diluent is introduced into the first drying chamber. Then the pre-dried powder is transferred from the first drying chamber to the second drying chamber. Dried powder is formed in the second drying chamber. Portion of the dried powder is recycled by a conveyor device from the second drying chamber to the first drying chamber. Another part of the dried powder is discharged from the second drying chamber.
EFFECT: method provides fast drying with a smaller number of cleaning cycles, which reduces the residual content of the diluent in combination with the best performance.
15 cl, 4 dwg
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Authors
Dates
2018-11-28—Published
2017-02-14—Filed