Henan Workers Machinery Co., Ltd.
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Industrial Spray Dryer for Milk and Whey Protein Powder Spray Drying Equipment Electric Heating Atomizer
High Speed Centrifugal Spray Dryer
Introduction
The spray dryer is one of the continuous atmospheric dryers. The liquid material is sprayed with a special device to form a mist and is dried in contact with hot air. For the drying of some heat-sensitive liquids, suspensions, and viscous liquids, such as milk, eggs, tannins, and drugs. Also used for drying fuels, intermediates, soap powder, and inorganic salts.
Working Principle
The air is filtered and heated into the top of the dryer air distributor, hot air into the spiral evenly into the drying chamber. The material liquid is sprayed into a finely atomized liquid droplet through the high-speed centrifugal nebulizer at the top of the tower body, and can be contacted with the hot air in a very short time and can be dried into finished products. The finished product is continuously discharged from the bottom of the drying tower and the cyclone, and the exhaust gas is drained by the draft fan.
Technical parameters
| Specification | LPG-5 | LPG-25 | LPG-50 | LPG-100 | LPG-150 |
| Inlet temp. (℃) | 140-350 | ||||
| Outlet temp. (℃) | 80-90 | ||||
| Spray form | High speed centrifugal atomization | ||||
| Water evaporation(kg/h) | 5 | 25 | 50 | 100 | 150 |
| Atomizer speed(rpm) | 25000 | 22000 | 21500 | 18000 | |
| Diameter of atomizing disk(mm) | 50 | 120 | 150 | ||
| Electric heating power(kw) | 9.6 | 31.5 | 60 | 81 | 99 |
| Recovery rate of dry powder (%) | 99 | ||||
| Occupied length(m) | 1.6 | 4 | 4.5 | 5.2 | 7 |
| Occupied width (m) | 1.1 | 2.7 | 2.8 | 3.5 | 5.5 |
| Height of Tower(m) | 1.75 | 4.5 | 5.5 | 6.7 | 7.2 |
| Lifting height of nozzle(m) | 2.5 | 2.5 | 3.2 | 3.2 | |
Product Features
At a high speed of drying, after the spraying of the liquid material , the surface area of the material will be increased greatly. In the hot-air flow, 95%-98%of water can be evaporated at a moment. The time of completing the drying needs only several seconds. Products with good uniformity, mobility and solubility, high purity, good quality. The production procedures are simple and the operation and control are easy. The liquid with the moisture contents 40-60%(for special materials, The contents may reach 90%).can be dried into the powder or particle products once a time. After the drying, there is no need for smashing and sorting, so as to reduce the operation procedures in the production and to enhance the product purity. The product particle diameters, looseness and water contents can be adjusted through changing the operation condition in a certain scope. It is very convenient to carry out the control and management.
Application
Food and plants: oats, chicken juice, coffee, instant tea, seasoning spices meat, protein, soybeans, peanut protein, hydrolysates and so on.
Carbohydrates: corn steep liquor, corn starch, glucose, pectin, maltose, potassium sorbate, and the like. Chemical industry: battery raw materials, basic dye pigments, dye intermediates, fertilizer, formaldehyde silicic acid, catalysts, agents, amino acids, silica, and so on.
Ceramics: alumina, ceramic tile materials, magnesium oxide, talcum powder and so on.