Chemical Industry Spray Drying Equipment

 

INTRODUCTION
Spray drying is a most widely used craft in liquid molding process and drying industry. It is ideal for producing powdery and granular solid product from the solution, emulsions, soliquoid and pumpable paste states. Thus, when the particle size distribution, residual moisture content, bulk density and particle shape must meet a precision standard, the spray drying is an ideal choice.

WORKING PRINCIPLE
Filtered and heated air goes into air distributor on the top of the dryer, and spirals into drying room uniformly. Going through the high-speed centrifugal atomizer on the top of tower, the liquid (rotates) sprays into extremely fine mist liquid beads, and can be dried completely in a short time in co-current contact with hot air. Finished products exhaust continuously from the bottom of the drying tower and cyclone separator, while waste gases are vented by the fan. 

FEATURES
1. Fast drying speed; greatly increasing the surface area of the material after the liquid is atomized; it can instantly evaporate 95% -98% of water in the stream of hot air; it takes only a few seconds to complete drying, which is especially suitable for drying heat sensitive materials. 
2. Our products have a good uniformity, mobility and solubility, high purity and good quality.
3. Simplified production process, easy to operate and control. Liquid of 40-60% moisture content (up to 90% for special materials) can be dried into powder products at a time, without crushing and screening after drying, which reduces production process and improve product purity. The size, bulk density, moisture can be adjusted within a certain range by changing operation conditions. It is convenient to do control and management. 

APPLICATION
Chemical industry: sodium fluoride (potassium), alkaline dyestuff and pigment, dyestuff intermediate, compound fertilizer, formaldehyde silicic acid, catalyst, sulphuric acid agent, amino acid, white carbon black, etc.
Plastic resin: AB, ABS latex, urea resin, phenolic resin, dense glue (urea) formaldehyde resins, polyethylene, polyvinyl chloride, etc.
Food industry: fat-rich milk powder, lancet protein, cocoa milk powder, babymeal, hunting blood meal, egg white (yellow), etc.
Food and plants: oats, chicken juice, coffee, instant tea, seasoning meat, protein, soybean, peanut protein, hydrolyzate and so on.
Sugar: corn syrup, corn starch, glucose, pectin, malt sugar, potassium sorbate, etc.
Ceramics: aluminium oxide, ceramic tile material, magnesium oxide, talcum powder, etc.

TECHNICAL PARAMETERS 

Dimension / Model	5	25	50	150	200-2000
Inlet Temperature °C	140-350 automatic control
Outlet Temperature °C	80-90
Max. Evaporation Capacity (kg/h)	5	25	50	150	200-2000
Atomizing Method	compressed air drive	mechanical drive
Revolution (r.p.m)	25000	18000	18000	15000	8000-15000
Revolution (r.p.m) Diameter of Atomizing Disc (mm)	50	120	120	150	180-240
Heat Source	electricity	steam+electricity	steam+electricity,oil, oil fuel, hot air furnace
Max. Heating Power (kw)	9	36	72	99
Overall Dimensions(L×W×H)(m)	1.8x0.93x2.2	3x2.7x4.26	3.5x3.5x4.8	5.5x4x7	depends on actual situation
Dried Powder Restoring Rate (%)	≥95

Note: the amount of water evaporation depends on the factors of material characteristics, inlet and outlet temperature. Water evaporation curve is shown above (for reference of selection) when the outlet temperature is 90ºC. With the constantly updated, relevant parameters will change without prior notice.

STRUCTURE SCHEMATIC