Product Description
A dairy spray dryer is a sophisticated machine that efficiently dries food products by atomizing a liquid feed into a fine mist and then exposing it to a stream of hot air. This process rapidly evaporates the moisture from the droplets, converting them into a dry, powdered or granular form. The spray dryer operates on the principle of spray drying, where the liquid feed, which can include ingredients like fruit juices, dairy products, or herbal extracts, is pressed through a nozzle at high pressure to create a fine spray.
The hot air, usually heated to temperatures suitable for the specific food being processed, is then introduced into the drying chamber. The combination of the tiny droplets and the hot air ensures maximum surface area for evaporation, resulting in rapid and uniform drying. The dried particles are then separated from the exhaust air, typically through cyclones or bag filters, and collected in a container for further processing or packaging.
Modern dairy spray dryer is equipped with advanced control systems that allow for precise adjustment of process parameters, such as inlet and outlet temperatures, air flow rates, and feed rates, to optimize the drying process for different food products. This ensures consistent product quality and efficient energy use.
Advantages
1. Rapid drying time. The surface area of the material is significantly increased after atomisation in the hot air stream, with 95% to 98% of the water evaporating instantly. This process is completed in just a few seconds, making it ideal for drying heat-sensitive materials.
2. The product boasts excellent uniformity, fluidity and solubility, high purity and superior quality.
3. The production process is streamlined, offering convenient operation control. For moisture contents of 40-60% (special materials up to 90%), the liquid can be dried into powder products, offering convenient control and management.
4. Versatility. The dairy spray dryer is suitable for drying a wide range of liquid materials, including juice, dairy products, soy sauce, and more.
Parameters
| Technical Data | Description/Range |
| Inlet temperature | 140-350°C, self-regulating |
| Outlet temperature | 80-90°C |
| Maximum water evaporation (kg/h) | 5 kg/h to 2000 kg/h (depending on model) |
| Centrifugal spray head drive form | Compressed air drive or mechanical drive |
| Maximum speed (r.p.m) | 8000 to 25000 (depending on model) |
| Diameter of spray disc (mm) | 50mm to 240mm |
| Heat source | Electricity, steam + electricity, fuel oil, gas, hot air furnace, etc. |
| Maximum power of electric heating (kw) | 9kw to 99kw (according to different models) |
| Dry powder recovery (%) | ≥95 |
Please note that the values and ranges of spray dryer in food industry above may vary depending on the specific model and application scenario.
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