Drying is required in many operations. In the process, different drying equipment is needed. The pressure spray dryer has obvious advantages in the drying process. First of all, this spray dryer has a high effective heat transfer efficiency and a large mass transfer area, so it can be dried in a short time.
Secondly, during the actual operation, the drying temperature can be appropriately adjusted according to actual needs. And the pressure spray dryer has a high degree of automation, so the staff is more convenient in operation. At the same time, because the device uses a sealed structure, it effectively avoids the problem of environmental pollution. In general, the device has the advantages of convenient operation, high degree of automation, and good product quality, so it has been favored by many users.
Especially when dealing with low-viscosity liquids, the use of a pressure spray dryer is more advantageous. This is because it uses pressure-type nozzles and the resulting droplets have a large air flow and are widely used in spray granulation. Such as washing powder, instant milk powder, granular fuel and so on. At the same time, it can ensure the biological activity of the materials such as color, aroma, taste, and so on. Moreover, the operation of the device is relatively flexible and can meet the quality indicators of different products.
Drying principle of pressure spray dryer:
The drying principle of the device can be summarized as follows: the filtered liquid material is fed into a pressure atomizer and atomized into small droplets through a high pressure of 2 to 20 MPa, and the surface area of the droplets after atomization is greatly increased, so that it is sufficient In contact with hot air, the drying process is completed quickly within 10 to 30 seconds, resulting in a finished product of powder or fine particles.
Pressure spray dryer applicable materials:
The equipment can be used to dry different materials, including foods, such as amino acids and the like, seasonings, proteins, etc.; ceramics, including magnesia, china clay, various metal oxides, dolomite and so on. Pressure spray dryers can also be used in chemical and pharmaceutical applications such as organic catalysts, resins, synthetic laundry detergents, proprietary Chinese medicines, and antibiotics.