Spray dryer professional processing:
Spray dryer is a device that can complete drying and granulation
at the same time. It is widely used in drying heat-sensitive
liquids, suspensions and viscous liquids, such as milk, egg liquid,
medicinal materials, extracts, inorganic salts, etc. Its working
principle is to spray the liquid material into mist through a
high-pressure nozzle, contact with hot air, and evaporate the water
quickly to obtain dry powder or particles.
Spray dryers are suitable for a variety of fields, including but
not limited to:
Food industry: used for drying heat-sensitive liquids such as milk
and egg liquid.
Pharmaceutical industry: used for drying materials such as
medicinal materials and extracts.
Chemical industry: used for drying fuels, intermediates, soap
powder and inorganic salts.
Spray dryers are mainly of the following types:
Centrifugal spray dryer: The liquid is thrown into mist through a
high-speed rotating centrifugal disk and dried in contact with hot
air.
Pressure spray dryer: The liquid is sprayed into mist through a
high-pressure nozzle for drying.
Chinese medicine extract spray dryer: specially used for drying
Chinese medicine extract.
Technical parameters and performance characteristics of spray
dryer:
The technical parameters of spray dryer include processing
capacity, hot air temperature, feed speed, etc.
Its performance characteristics include:
High efficiency and fast speed: It can complete the drying
process in a short time.
Easy to operate: By adjusting the pressure, flow rate and size of
the spray hole of the liquid pump, particles of the required size
can be obtained.
Wide range of application: It is suitable for drying and
granulating a variety of liquid materials.
Technical specification:
| Model/Item/Parameter | 5 | 25 | 50 | 150 | 200-2000 |
| inlet temperature | 140-350 self-control |
| output temperature | 80-90 |
| water evaporation(kg/h) | 5 | 25 | 50 | 150 | 200-2000 |
Centrifugal spray head transmission form | Compressed air transmission | Mechanical transmission |
| Rotating speed(r.p.m) | 25000 | 18000 | 18000 | 15000 | 8000-15000 |
| Spray disc diameter(mm) | 50 | 120 | 120 | 150 | 180-240 |
| heat source | electricity | Steam + electricity | Steam + electricity, oil, gas, hot air stove |
| Electric heating power(kw) | 9 | 36 | 72 | 99 | |
Overall dimensions (Length×width×height)(m) | 1.8×0.93×2.2 | 3×2.7×4.26 | 3.5×3.5×4.8 | 5.5×4×7 | Determine according to actual situation |
| Dry powder recycling(%) | ≥95 |
Note: The amount of water evaporation is related to the
characteristics of the material and the hot air inlet and outlet
temperatures. When the outlet temperature is 90℃, the water
evaporation curve is shown in the figure above (for model selection
reference). As the product is constantly updated, the relevant
parameters will change without prior notice.
Ordering instructions:
◎Name and physical properties of the material liquid: solid content
(or water content), viscosity, surface tension, and PH value.
◎Powder capacity after drying, allowable residual moisture content,
particle size, and allowable maximum temperature.
◎Output and daily opening hours.
◎Available energy: available steam pressure, electrical capacity,
available coal, oil, and gas.
◎Control requirements: Whether the inlet and outlet temperatures
need to be controlled automatically.
◎Powder collection requirements: Whether to install a bag trap and
environmental requirements for exhaust gas emissions.
◎Other special requirements.
Equipment pictures:
