Centrifugal Spray Drying Machine

Brief Introduction:

High-speed centrifugal spray drying is the most widely used technology in liquid forming and drying industry. Most suitable for the production of powdered, granular solid products from solutions, emulsions, suspensions and paste liquid raw materials.

Therefore, spray drying is an ideal process when the particle size distribution, residual moisture content, bulk density and particle shape of the finished product must meet the precise standard.

Spray dryer is a kind of continuous atmospheric pressure dryer. Spray the liquid into fog with special equipment to dry it in contact with hot air. Used to dry some Thermos-sensitive liquids, suspensions and viscous liquids, such as milk, eggs, tannin acid and medicines. Also used for drying fuels, intermediates, soap powder and inorganic salts.

Operational Principle of Centrifugal Spray Dryer:

The air is filtered and heated into the top air distributor in the top of the dryer. The hot air is spirally and uniformly into the drying chamber. The high speed centrifugal atomizer at the top of the tower is made into very fine mist droplets and can be dried in a very short time with the hot air. The finished product is continuously made of the bottom and spin of the drying tower. In the air separator, the exhaust gas is emptied by the fan.

Product characteristics:

1. The drying speed is fast and the surface area of the liquid is greatly increased after atomization. In the hot air flow, 95% -98% moisture can be evaporated instantly. The drying time is only a few seconds, which is especially suitable for the drying of thermos-sensitive materials.

2. The product has good uniformity, fluidity and solubility, high purity and good quality.

3. Simplified production process, easy operation and control. For the liquid with moisture content of 40-60% (up to 90% of special material), the product can be dried into powder pellet at one time. After drying, there is no need to comminute and screen, to reduce the production process and improve the purity of the product.

4. The particle size, loose 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.

Selection information:

• Liquid name, physical property: solid content (or water content, viscosity, surface tension, PH value).
• Dry powder capacity, allowable residual water content, particle size, maximum allowable temperature.
• Output, shift time every day.
• Available energy: steam pressure available, capacitance, available for coal, oil and gas.
• Control requirements: enter and exit temperature need to be self-controlled.
• Powder collecting requirement: whether to install bag trap, environmental emission requirements.
• Other special requirements.

Applied range:

Chemical industry: battery raw materials, basic dye pigments, dye intermediates, compound fertilizer, formaldehyde silicic acid, catalyst, sulfuric acid, amino acid, silica and so on.

Plastic resin: ABN ABS emulsion, urethral resin, phenolic resin, polyvinyl chloride, polyvinyl chloride, polyvinyl chloride, polyurethane-formaldehyde resin.

Food industry: rich fat milk powder, skeleton milk powder, cocoa milk powder, milk powder, animal blood powder, egg white (yolk) whole egg powder, etc.

Food and plants : oats , chicken , coffee , instant tea , spice meat , protein , soy , peanut protein , hydrolysate, etc .

Sugar: corn syrup, corn starch, glucose, pectin, maltose, potassium sorbate, etc.

Ceramics: alumina, ceramic tile materials, magnesium oxide, talc powder and so on.

Characteristics of Centrifugal Spray Dryer:

1. The tower body has cold wind jacket.

2. The tower body is provided with an automatic vibrating device.

3. The tower body, the pipeline is equipped with the quick opening cleaning hole and the sewage hole.

4. Automatic control of constant temperature feeding tank.

5. Manual high-pressure washing tower random accessories.

6. The part in contact with the material is made of stainless steel material (or all stainless steel manufacturing.

7. The material collection adopts the two-stage cyclone dust collector, or the first stage cyclone dust collector and the wet type dust collector.

8. Automatic control of inlet air temperature and continuous device.

9. Equipped with air sweep device.