1. What’s superheated steam?
The steam corresponding to water evaporation is saturated steam, but it is wet saturated steam at first. After the saturated steam is heated further when the water in the steam is completely evaporated to become dry saturated steam. The dry saturated steam is further heated to a temperature above 200℃ to 600℃. This kind of steam is called superheated steam.
The pressure of superheated steam is not corresponding to the density of steam. Superheated steam uses a special heating method to produce ultra-dry saturated steam under normal pressure, with a temperature of above 200℃ to 600℃, and clean dry steam without water.
2. Characteristics and advantages of superheated steam
1)Superheated steam in food drying
Uses superheated steam to directly contact the dried material to remove moisture is a new drying method developed in recent years. Compared with traditional hot air drying, this drying method uses water vapor as the drying medium, and the exhaust gas discharged by the dryer is all steam. The latent heat of steam can be recovered and reused by condensation. For example, using superheated steam to directly dry spicy sausages, the dried spicy sausages are fresh and beautiful in appearance, and the drying is fast. In addition to the above advantages such as energy saving and environmental protection, it is also outstanding in short drying time, small shrinkage and deformation of materials, fresh color, porosity, good rehydration and high vitamin content.
2. Advantages of superheated steam in grilling, fumigation and sterilization of food
In the food processing industry, developed countries such as the United States and Japan have begun to use superheated steam. The use of hot steam heating will bring a new highlight and selling point to the grilling, fumigation and sterilization of the food industry, and will bring a qualitative leap to the processing of meat, pasta, seafood, vegetables, dried fruits, tea and bean products, and bring an innovation to food processing equipment and processing forms, making food processing have a greater breakthrough in color, aroma, taste, nutrition and hygiene.
Kenuo condensing superheated steam boiler has been well proven the excellent performance in the food industry and papermaking industry, compared with saturated steam with humidity, superheated steam drying has fast drying speed and high efficiency, which greatly improves the quality and output of the product.
