Micron Drymeister Flash Dryer

drying chemical food mineral

The Drymeister® Flash Dryer combines drying, milling and classifying in a single system with inlet gas temperatures up to 600°C. The Drymeister is an economical alternative to spray dryers that can transform damp feed material into an ultra-fine powder with an extremely narrow particle size distribution. This system is available from pilot up to full production models with 400 HP.

A continuous flash dryer with integrated milling and classifying
Perform drying, milling, and particle classification in one step to reduce operating costs and improve product qualities
Several rotor and classifier designs are available for optimal feed dispersion and particle size control of products; suitable for sticky and cohesive materials.
Can dry a wide range of materials including wet powders with agglomerates, filter cakes, paste, slurries, thixotropic materials and nanoparticle suspensions
Design for high inlet temperatures (up to 600°C) and high water evaporation rates
Capable of sterilization drying with superheated steam
Short residence time
High energy efficiency and compact in design
Applications: PCC, cellulose, wheat flour, coloring agents, fertilizers, pigments, dyes, food additives, synthetic detergents, metal oxides, polymerized toners, residue of soy beans, battery materials, ceramics, nutraceuticals, pharmaceuticals and fine chemicals
Model sizes: seven models with evaporation capacities of water 200 ~ 6000 kg/hr

The wet material is fed through customized feeding systems into the grinding and drying section of the dryer’s main body. The grinding rotor disperses the wet material into very fine particles and the fine particles are fluidized in the grinding chamber by temperature-controlled, hot gas coming in from the air heater.

The hot air (or inert gas) can be heated up to 650 °C and as the wet product is dispersed, it is reduced in size in the bottom section of the dryer. The system is kept under a negative pressure by the exhaust fan and the surface area of the product is increased enormously so that water (or other solvents) is evaporated instantaneously.

The dry and fine particles are conveyed with the gas stream to the top section of the dryer where a separator classifies the particles by size. Then the particles pass the classifier at the set cut point and are conveyed with the exhaust air to a powder air separating system like the cyclone, cyclone filter or cyclone scrubbers.

The Micron Dryer flash dryer retains a fluidized bed of product in the drying chamber to ensure a low level of adhesion of wet material on the inside wall of the drying chamber. Moreover, process parameters like classifier speed and outlet temperature can be adapted to control moisture content and particle size of the end product.

Ultra fine regular end product – Due to its specially designed dispersion rotor, our flash dryers are able to produce ultra-fine powders in one step from suspensions, slurries, pastes and dough, filter cakes or wet powders.

High evaporation capacity – Due to the combination of high ?T with a good dispersion of the wet product in the air, our flash dryers can evaporate large quantities of liquids.

Compact design – Compared to other direct drying technologies, the flash dryer requires up to 50% less space.

Multi-purpose – Filter cake or slurry, in the same machine. Therefore with the Drymeister-H unlimited mechanical dewatering is possible previous to the final drying stage.

Easy access – Either for cleaning, inspection or maintenance inside the dryer, our flash dryers offers the best accessibility from the market, regardless which size.