The drum dryer is an indirect heating continuous drying machine. The material forms a uniform film on the heat transfer surface, which is dried with the drum rotating process, and is removed by the scraper at the discharge point to obtain a powder or sheet product. The specially designed cloth device makes the film uniform and thick, and is suitable for slurry and porridge-like viscous materials. The material stays at a high temperature for a short period of time and does not overheat. Compared with the direct drying of hot air, the drum dryer does not require a powder separation device, and the exhaust gas does not carry a large amount of heat, and the operation cost is low. Features 1. Evaporation of 1kg of material water generally requires water vapor of 1.2~1.5kg. 2, no dust flying, low noise, good operating environment, low operating costs. 3, suitable for sticky porridge, pulpy materials, continuous operation. 4. The material can be cooled and cooled by passing through the cooling medium. Field of use Yeast, antibiotic, lactose, starch slurry, sodium nitrite, dye, distillation waste liquid, sulfur blue, sulfurized element, light calcium carbonate, sodium benzoate, tribasic aluminum sulfate, glucose, oxalic acid, coal powder, monosodium glutamate, litre Powder, brightener, direct yuan green, heavy alkali, pull powder, electric jade powder, sodium bicarbonate, zinc base, chromium sulfate, bone glue, activated carbon, sulfur blue, calcium acetate, copper sulfate, whole milk, skim milk , а-starch, animal glue, whey, tannin extract, dye direct black, dye Prussian blue, milk, vegetable gum, calcium arsenite.
1. Multi-pressure roller fabric: a plurality of pressure rollers are arranged on the outer surface of the roller, and the gap between the pressure roller and the roller surface can be conveniently adjusted. The number of press rolls and the gap control film thickness are thin. This type of cloth is especially suitable for sticky porridge materials such as а starch, baby food, potato chips, fruit slices and the like.
2. Intermediate roller fabric: The intermediate roller is immersed in the liquid tank, and the slurry is rotated by the intermediate roller to distribute the film on the surface of the roller. It is suitable for heat sensitive materials and avoids long-term contact heating of the roller and the liquid.
3. Immersion cloth: The drum is directly immersed in the material liquid, and the drum rotates naturally to form a film, which is suitable for general slurry non-heat sensitive materials.