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Spray drying tower

Product description

The spray dryer tower is suited for drying from the solution, emulsion, suspension, and pump in the liquid raw material to generate a paste powder, granular or bulk solids.
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Product Details



The spray dryer is suited for drying from the solution, emulsion, suspension, and pump in the liquid raw material to generate a paste powder, granular or bulk solids. So, when the finished particle size distribution, residual moisture content, bulk density and particle shape must conform to precise standards. Spray drying is an ideal process.


Principle of work


After filtration and heating of air into the dryer at the top of the air distributor, hot air spirals into the drying chamber evenly. Liquid through the tower at the top of the high-speed centrifugal atomizer, (rotation) Spray into a very fine mist liquid beads. Contact with the hot air and the flow in a very short period of time can be dry for the finished products, finished products continuously from the drying tower and the cyclone separator at the bottom of the output, exhaust fan venting from.




1. Fast-drying, liquid through the atomization surface area after playing the increase in hot air flow, the instantaneous evaporation can be 95% -98% of the water. Only a few seconds to complete the drying time is especially suitable for drying heat-sensitive materials.

2. Product has a good uniformity, mobility and solubility. Products of high purity, good quality

3. To simplify the production process, operation and convenient control. For the moisture content 40-60% (special materials, up to 90%) of the liquid can be dried into a powder product. After drying without crushing and screening to reduce the production processes, improve product purity. The product particle size, bulk density, moisture, within a certain range can be adjusted by changing the operating conditions.

The control and management are all convenient.


Operation process of centrifugal spray dryer


The raw material is pumped into the atomizer of the spray dryer at the stirring and constant temperature state. The liquid is thrown out by high-speed rotating atomizer, and the droplet flows with the high temperature airflow entering the spray tower and then fall down to the bottom, the droplet loses moisture and is dried into powder. Under the action, the powder enters the first-stage cyclone separator and the second-stage cyclone separator, the equipment is easy to operate.

Considering the particularity of sugar materials, the main tower is not expected to be discharged, the bottom of the first cyclone separator is continuously discharged by the blower, while the bottom of the second cyclone separator is continuously discharged by the blower; the back of the tail gas is designed with a very environmentally friendly water film dedusting device.

Receiving system is composed of air duct, connecting parts, cyclone separator and induced draft fan. It ensures that dry powder can be received smoothly and stored in packages. The cyclone is recommended to be placed on the first floor (convenient for feeding).

The equipment is equipped with percussion device, which can prevent the material from from sticking to the  main tower wall, pipeline and the bottom of cyclone separator from accumulating material. The whole system ensures that the process requirements are met.



Chemical Industry: sodium fluoride (potassium), alkaline dyestuff and pigment, dyestuff intermediate, compound fertilizer, formaldehyde silicic acid, catalyst, sulfuric acid, amino acid, white carbon and so on.

Plastics and resin: AB, ABS emulsion, uric acid resin, phenolic aldehyde resin, urea-formaldehyde resin, formaldehyde resin, polythene. Poly-chloroprene and so on.

Food Industry: Food and plant: fatty milk powder, protein, cocoa, ilk powder, substitute milk powder, egg white (yolk). Oats, chicken juice, coffee, instant dissoluble tea, seasoning meat, protein, soybean, peanut protein, hydrolysate and so on.

Sugar: corn oar, corn starch, glucose, pectin, malt sugar, sorbic acid potassium and so on.

Ceramic: aluminium oxide, ceramic tile material, magnesium oxide, talcum and so on.

Key words:

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