Why Dry Food/Benefits of Food Drying

   Food drying refers to the process in which food moisture is removed after being heated and evaporated into hot air. Food drying is one of the main technologies for food storage and processing. Most of the water in the food is removed through drying technology to reduce water activity, inhibit the growth and reproduction of microorganisms, and extend the food storage period.

Food Drying Process

  There are two aspects in the food drying process: First, the water molecules in the food migrate from the inside to the surface in contact with the dried hot air. When the water molecules reach the surface, according to the vapor pressure difference between the surface and the air, the water molecules are transferred into the air immediately-moisture transfer; the other is the transfer of heat in the hot air from the air to the food surface, from the surface to the inside of the food-heat transfer. Therefore, the food drying process involves both the transfer of quality (moisture) and the transfer of heat, that is, the transfer of heat and moisture.

The Principle of Dryer Machine Working 

  Baixin agricultural products deep processing equipment is special drying equipment designed and produced according to the physical characteristics of sideline products such as melons, fruits, vegetables, medicinal materials, and grains, and dry material requirements. It uses pure hot air generated by a heat exchange furnace to turn over multiple layers and dry layer by layer. This machine is quick to dehydrate and dry, easy to operate, and efficient operation. It can meet the needs of large-scale continuous production while retaining the nutrients and colors of the products to the greatest extent. The processed foods that have been dried using the special mesh belt dryer designed by the Baixin company have good color, a low breakage rate, and a high yield. The mesh speed, temperature, and humidity can be adjusted according to the production need to satisfy the drying treatment of processed foods with different moisture content and different varieties.
  The food dryer is a continuous production drying equipment. The main heating methods are electric heating, steam heating, gas heating, and coal heating. The main principle is to spread the material on the mesh belt evenly and drag it into the dryer machine by the transmission device. Moving back and forth, hot air flows through the materials, and water vapor is discharged from the moisture drain hole to achieve the purpose of drying.

The Food Dryer Structure 
  The food drying machine is composed of 4 parts, that is the feeding conveyor, the main unit of the mesh belt dryer, the heat source, and the discharging conveyor. The conversion furnace provides heat; the  through-flow mesh belt dryer is the main body of the drying equipment, which is composed of cabinet body and a multi-layer conveyor belt; the electric control system controls the start, operation and stop of the entire equipment. With the cooperation of other auxiliary components, the drying equipment completes the food feeding, drying and discharging processes, realizing the drying process of food drying.

  The processed food enters from the upper layer, and the thickness of the processed food spread is controlled by the automatic spreader. Driven by the mesh belt, the processed food moves from the upper layer to the lower layer. During operation, the processed food will fall down many times, so that the processed food will flip more thoroughly and dry more evenly. The dried processed food is discharged from the discharge port of the bottom layer.During this process, it is fully in contact with the high temperature and hot air to achieve the drying effect.

Hot Air Circulation Food Drying Applications

  Henan Baixin company is a modern enterprise engaged in R&D, manufacturing, sales, installation, and integration of drying equipment. We uphold the attitude of being responsible for our customers and striving for high-efficiency and durable products, which are deeply favored by our customers. Over the years, we have accumulated rich experience in many material drying. The continuous mesh belt box dryers developed and manufactured by our company are widely used in food, vegetables, fruits, medicinal and other industries.

Technical Data of Food Dehydrator Machine

Food drying video：