The paddle dryer special for sludge is a new and efficient hollow paddle dryer for sludge, and a dual-shaft paddle dryer for sludge. The hollow paddle dryer is a new type of drying equipment successfully developed by our factory on the basis of introducing and absorbing foreign advanced technology. The machine has advanced technology, reasonable design, compact structure, wide application range, large production capacity, high product quality, stable performance, and can be used for drying various sludges.
Hollow paddle dryer introduction
JYG series hollow paddle dryer can indirectly heat or cool paste, granular, powder, and slurry materials. It can complete drying, cooling, heating, sterilization, reaction, low-temperature combustion and other unit operations. The special wedge-shaped stirring heat transfer blade in the equipment has higher heat transfer efficiency and self-cleaning function of the heat transfer surface.
Working principle of hollow paddle dryer
Wedge-shaped hollow blades are densely arranged on the hollow shaft, and the heat medium flows through the blades through the hollow shaft. The heat transfer area in the effective volume is large, and the temperature of the heating medium ranges from -40°C to 320°C. It can be steam or liquid: such as hot water, heat transfer oil, etc. Indirect conduction heating does not carry air to take away heat, and the heat is used to heat the material. The heat loss is only the heat dissipation to the environment through the insulation layer of the body. The wedge-shaped blade heat transfer surface has a self-cleaning function. The relative movement of the material particles and the wedge-shaped surface produces a scrubbing effect, which can wash off the attached material on the wedge-shaped surface, so that a clean heat transfer surface is maintained during operation. The shell of the blade dryer is Ω type, and two to four hollow stirring shafts are generally arranged in the shell. The shell has a sealed end cover and an upper cover to prevent material dust from leaking out and give full play to its effect.
Hollow blade dryer adapts to materials
Pad dryer has been successfully used in food, chemical, petrochemical, dye, industrial sludge and other fields. The characteristics of heat transfer, cooling, and stirring of the equipment enable it to complete the following unit operations: combustion (low temperature), cooling, drying (solvent recovery), heating (melting), reaction and sterilization. The stirring blade is also a heat transfer surface, which increases the heat transfer area in the unit effective volume and shortens the processing time. The hollow blade dryer can be used for calcium carbonate, clay clay, polypropylene powder, soy sauce residue, coal powder, potassium chloride, ABS resin powder, nickel hydroxide, cobalt hydroxide, stabilizer, phthalic acid, zinc hydroxide, Distillers grains, oxytetracycline residue, fly ash, skin powder, clay, kaolin, iron oxide yellow, magnesium trisilicate, alumina, H acid, mycelium, nitroaniline, naproxen intermediate, ferrous sulfate , Starch, sodium dihydrogen phosphate, calcium dihydrogen phosphate, sucrose ester, silicon dioxide, monosodium glutamate, salt, pepper, pseudo-diaspore, light calcium carbonate, tungsten concentrate, pumice powder, bagasse, Fly ash, cotton protein, rapeseed, soybean raw material, monosodium glutamate residue, fish meal, surplus sludge, electroplating waste liquid, cuprous oxide, polyethylene, pesticide, CMC, polymer, adsorbed oatmeal, whole oatmeal, function Resin, PVA, hydrated gypsum, hydrazine degypsum, tricalcium phosphate, organic acid.