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Details

Product introduction

    The spray drier is widely used in the liquid shaping technology and in the drying industry. Particularly it is suitable for producing powder, granule or block solid product from solution, emulsion, suspending liquid and pumped paste liquid.

Working principle

    Fresh air after filtering and heating, enters into the air distributor at the top of dryer.Then the hot air enters into the drying chamber. The liquid of raw material is pumped in through diaphragm pump, be atomized into tiny droplets. Through the very short time of contacting the hot air, the materials can be dried into the finished products.The wasted air and fine powder will be collected through collector at the bottom of cyclone.The tower body also equipped with observation door, sight glass, lamp-house and so on. 

      The drying method does not require the mechanical separation of the raw material in advance and the drying time is very short (usually 5 ~ 30s).It is suitable for drying heat sensitive materials, such as food, medicine, biological products, dyes, plastics and fertilizer etc.. 

Performance characteristics

1.The drying rate is fast, and the surface area of the material is greatly increased after atomization,In the hot air stream, the moisture of 95%-98% can be evaporated in a flash,particularly suitable for drying heat sensitive materials.

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

3.The production process is simplified and the operation and control are convenient.For a liquid containing 40-60% of moisture (up to 90% of special material), it can be dried into powder products at one time. After drying, there is no need to smash and screen, to reduce production process and improve product purity.The size, density and moisture of the product can be adjusted in a certain range by changing operating conditions, and the control and management are very convenient.

Adaptive material

Chemical industry: Sodium fluoride (potassium), basic dye, pigment, dye intermediate, compound fertilizer, formaldehyde, silicic acid, catalyst, sulfuric acid, amino acid, white carbon and so on.

Plastic resin: AB, ABS emulsion, urine aldehyde resin, phenolic resin, glue (urea), formaldehyde resin, polyethylene, polyvinyl chloride, etc..

The food industry: fat rich milk, cacoa milk powder, milk replacer, hunting blood meal, egg white (yellow) etc..

Foods and plants: oats, chicken juice, coffee, instant tea, spices, meat, protein, soy, peanuts, proteins, hydrolysates, etc..

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

Ceramic: alumina, ceramic tile material, Magnesium Oxide, talcum powder, etc..

Technical specifications

Note: the evaporation of water is related to the characteristics of the material, the heat inlet air and the outlet temperature. When the outlet temperature is 90oC, the moisture evaporation curve is shown above (for selection reference). As the product is constantly updated, the relevant parameters are changed without prior notice.

Order note
1.Material name, physical property: solid content (or water content), viscosity, surface tension, pH value.
2.Dry powder capacity, allowable residual water content, particle size, and permissible maximum temperature.
3.Yield and operation time per day
4Available energy: steam pressure, capacity, capacitance, coal, oil, gas.
5.Control requirement: does the inlet and outlet temperature require automatic control?
6.Powder collection requirement: whether or not to install a bag trap, the environment to exhaust emissions requirements.
7.Other special requirements.

Technical specifications