Principle of operation
After filtering and heating, the air enters the air distributor at the top of the dryer, and the hot air enters the drying chamber evenly in a spiral shape. The feed liquid passes through the high-speed centrifugal atomizer at the top of the tower body, and is (rotated) sprayed into extremely fine mist-like liquid beads, which can be dried into finished products in a very short time by cocurrent contact with hot air. The finished product is continuously output from the bottom of the drying tower and the cyclone separator, and the dusty tail gas can be further removed by the bag dust collector and then exhausted by the fan, or sent to the wet dust collector by the fan for dust removal and then exhausted.
Process flow diagram
Performance characteristics
◎ The drying speed is fast, and the surface area of the feed liquid is greatly increased after atomization. In the hot air flow, 95%-98% of water can be evaporated instantly, and the drying time only takes a few seconds, which is especially suitable for drying heat-sensitive materials.
◎ The product has good uniformity, fluidity and solubility, high purity and good quality.
◎ The production process is simplified and the operation and control are convenient. For liquid with moisture content of 40-60% (special materials can reach 90%), it can be dried into powder products at one time, and there is no need to crush and screen after drying, thus reducing production procedures and improving product purity.
◎ The particle size, bulk density and moisture content of the product can be adjusted by changing the operating conditions within a certain range, and the control and management are very convenient.
Applied range
New energy source: Ferrous lithium phosphate.
Chemical industry: sodium fluoride (potassium), basic dye pigment, dye intermediate, compound fertilizer, formaldehyde silicic acid, catalyst, sulfuric acid agent, amino acid, white carbon black, etc.
Plastic resin: AB, ABS emulsion, urea-formaldehyde resin, formaldehyde resin, polyethylene, polyvinyl chloride, etc.
Food industry: rich milk powder, casein, cocoa milk powder, milk powder substitute, blood hunting powder, egg white (yellow) and so on.
Food and Plants: Oats, Chicken Juice, Coffee, Instant Tea, Flavor Meat, protein, Soybean, Peanut protein, Hydrolysates, etc.
Sugar: corn syrup, corn starch, glucose, pectin, maltose, potassium sorbate, etc.
Pottery: alumina, ceramic tile material, magnesium oxide, talcum powder, etc.
Technical specifications
Model Items/Parameters | 5 | 25 | 50 | 150 | 200-2000 |
Inlet temperature | 140-550 Automatic control | ||||
Outlet temperature | 80-90 | ||||
Moisture and large evaporation（kg/h） | 5 | 25 | 50 | 150 | 200-2000 |
Transmission form of centrifugal spray head | Compressed air drive | Mechanical drive | |||
High speed（r.p.m） | 25000 | 18000 | 18000 | 15000 | 8000-15000 |
Spray disc diameter（mm） | 50 | 120 | 120 | 150 | 180-240 |
Heat source | Electricity | Steam+Electricity | Steam+Electricity, Fuel Oil, Gas, Hot blast stove | ||
Electric heating high power（kw） | 9 | 36 | 72 | 99 | |
The outline ruler can (length× width× height)（m） | 1.8×0.93×2.2 | 3×2.7×4.26 | 3.5×3.5×4.8 | 5.5×4×7 | Determine according to the actual situation |
Dry powder recovery（%） | ≥95 | ||||
