FIELD: chemical industry; production of fine-dispersed powders. SUBSTANCE: mounted between branch pipes feeding the material to be dried and gas distributing grate are ultrasonic gas-jet radiators connected with source of gaseous heat-transfer agent. Mounted in the main feeding the material being charged is mixer connected with source supplying nonliquefied gas. Mounted on housing of radiators are headers with holes directed inside the radiators and connected with branch pipes supplying the material being dried. EFFECT: intensification of drying process and enhanced quality of the product. 2 cl, 3 dwg
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