Hosokawa offers an alternative to spray drying

Published: 10-Jul-2009

The Drymeister (DMR) from Hosokawa Micron is a compact super flash dryer capable of efficiently handling sticky more concentrated feed materials, therefore saving time and energy.

The Drymeister (DMR) from Hosokawa Micron is a compact super flash dryer capable of efficiently handling sticky more concentrated feed materials, therefore saving time and energy.

After dewatering, the most common physical appearance of the filter cake is between highly viscous slurry and a crumbly mass. The spray drier has a long history and the feed, for best results, is usually slurry of low viscosity where sometimes water has to be added to adjust to the right consistency.

The DMR is capable of accepting the dewatered filter cake straight from the dewatering stage and because it is a flash mill dryer the grinding rotor disperses the material into fine particles and the integral air-classifying rotor ensures the product is the correct particle size.

A fluidised bed of product in the drying chamber ensures a low level of adhesion of undried product to the inside wall of the drying chamber and the combination of the fluid bed with the grinding/dispersion rotor contributes to the DMR's compact size.

Adjustment of both the classifier rotor and grinding rotor speeds along with the outlet air temperature ensures very close control of final end product particle size and final moisture content all in just one unit. The Hosokawa Drymeister range is available in seven sizes.

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