Spray Drying Machine
spray dryer Equipment in which the material to be dried is sprayed as a fine mist into a hot‐air chamber and falls to the bottom as dry powder. The period of heating is very brief and so nutritional and functional damage are avoided. Dried powder consists of hollow particles of low density; widely applied to many foods (e.g. milk) and
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The air passes through the filter and heater to the hot air distributor at the top of the drying chamber, and the hot air enters the drying chamber evenly in a spiral shape.The material liquid is pumped to the centrifugal spray head on the top of the drying chamber through the filter, and sprayed into tiny droplets of mist, which contact the hot air with a huge surface area, the water quickly evaporates and dries into granule products in a very short time. The wet waste gas is captured at the bottom of the tower and in the cyclone separator and discharged to the outdoor by the fan.
Features of Spray Dryer
- Rapid drying speed.After centrifugal spray, the surface area of the feed liquid is greatly increased. In the high-temperature airflow, 95-98% water can be evaporated instantly, and the drying time takes more than ten seconds.
- Suitable for heat sensitive materials.Because the droplet and the hot air flow in the direction of the flow, although the hot air temperature is higher, but the material will not be overheating in the evaporation of water.
- Wide range of use.A large number of materials with very different physical properties are produced in this way.Such as polymers and resins;Dyes and pigments;Ceramics and glass;Rust remover and insecticide;Carbohydrates;Dairy category;Blood and fish products;Fertilizers;Organic and inorganic compounds etc.
- The product has good dispersion, fluidity and solubility.Because of the instantaneous drying, the product can maintain a uniform fine grain.
Structure of Spray dryer
Spray dryer Details
|Inlet temperature (ºC)||140~350|
|Outlet temperature (ºC)||80~90|
|Water evaporation capacity(kg/h)||5||25||50||100||150||200~2000|
|Diameter of atomizing disc (mm)||50||120||120||120||150||180~240|
|Heat source||Electricity||Electricity||Steam+electricity, oil, fuel, gas||Solved by user|
|Max. power of electric heater (kw)||9||48||72||81||99||/|
|Recovery rate of
dry powder (%)
Application of Spray Dryer
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, phenolic resin, rubber (urea) formaldehyde resin, polyethylene, polyvinyl chloride and so on.
Food industry: fat rich milk powder, tickling protein, cocoa milk powder, milk replacer, blood hunting powder, egg white (yellow), etc. Food and plants: oats, chicken juice, coffee, instant tea, flavored meat, protein, soybean, peanut protein, hydrolysate, etc.
Sugar: corn syrup, corn starch, glucose, pectin, maltose, potassium sorbate, etc.
Ceramics: alumina, ceramic tile materials, magnesia, talcum powder, etc.
- Provide 24-hour technical consulting reply;
- Provide professional quoted price;
- Provide detailed product performance specification;
- According to product’s using condition, technicians will offer rationalization proposals to assist clients to select proper product types;
- Provide other corollary equipment according to client requirements.
- Begin to supervise from raw material, its qualified rate can reach to 100%;
- Whole manufacturing process are in strict accordance with promised procedure requirements, product qualified rate can reach to 100%;
- Provide product’s inspection record of key junctures to customers;
- Provide production schedule photos to customers at regular intervals;
- Package and transport products strictly accordance with export standard;
- Provide transportation schedule information to clients timely.
- Provide targeted installation video;
- Under the premise of correct installation, normal maintenance and using, we guarantee one-year warranty period;
- When warranty period has expired, our sold products enjoys lifetime guarantee repair, we only charge cost price for changing product’s standard component and sealing component;
- During installation and adjustment period, our after-sale service staff will communicate with customers frequently to know product’s running state in time. Assist customers to install and adjust products until customers are satisfied;
- If product has malfunction during operation period, we’ll offer you satisfied answer in time. We’ll reply you within 1 hour and provide solution or send staff to spot within 24 hours after receiving maintenance notification.
- Lifelong free technical support. Conduct satisfaction survey and inquiry equipment running condition to clients by telephone or e-mail semiannually from the first day of equipment running, put on records of acquired information;
- Provide assistant service if product is damaged during transportation.
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