GT Food Drum Dryer / Rotary Drum Dryer Food Grade (Energy Saving, Customized Design)

GT Roller Drum Dryer / Roller Dryer Machines (Energy Saving, Customized Design) is a kind of indirect heating / cooling dryer in continuous production. Raw material fed from top or bottom of drum and stick on the drum. Filling heating / cooling medium inside the drum, the heat / cooling then transferred to raw material, thus raw material could get dried / flaked. Flake form dried product will be scraped off, and preliminarily crushed as well as transported by screw conveyor.
The drum body of the drum dryer is heated on the inside by steam. A special composition of cast iron gives the drier a combination of favourable properties: accurate shape retention even at high steam pressure and temperature, and excellent "scraping properties" for the scraping knife.
Steam heating gives a uniform temperature distribution over the drum surface and this results in a consistent product quality. The steam condenses on the inside of the drying drum. The condensate is continuously removed from the drum, so that the largest possible surface area remains available on the inside of the drum for condensation of the steam. The steam system is a closed system, which means that the product cannot come into contact with the steam or condensate.
Depending on the design of the drum dryer, the product is applied continuously as a thin film on the underside or top of the main drum. As the drum rotates and is heated on the inside, the product dries on the outside of the drum surface. The short exposure to a high temperature reduces the risk of damage to the product. The water or solvent evaporates and leaves the process at the top.
If necessary, the vapour can also be sucked off locally around the drum. The dried product film finally reaches the knife and is scraped off.
In a double drum dryer the product is fed into the sump between the two main drums (which always rotate in opposite directions).
The small gap between the drums can be set accurately to obtain a desired film layer (either with a standard manual gap adjustment or with ReGain, a servo-motor driven gap adjustment on T10).​

(1)High efficiency. Almost all of the heat / cooling could be used on flaking, efficiency could reach 80-90%.

(2)Widely used. The flaker is available for flaking the raw material with large moisture content range. We could get the best flaking effect by adjust feeding rate, thickness of pavement, drum rotating speed, feeding form etc.

(3) Short retention time. Drying time only remains 10-15 seconds, it is suitable for heat sensitive material.

It is suitable for flaking liquid raw material or sticky material in chemical industry, dyestuff industry, pharmaceutical industry, foodstuff industry, and metallurgy industry and so on..