Large scale continuous multi-layer mesh belt dryer for agricultural products and vegetable tunnel dryer

Working Principle

Products are put on the conveying belt. The belt is made of stainless steel screen and is fixed on the brace rod. Stainless steel baffler plates are also furnished at both sides of the belt to prevent leakage of the products. Belt will be moved inside the dryer by motor. Belt dryer is composed of several independent heating zones which could be further divided into two or more drying sections with different air volume, heat exchange area and air-passing mode.

In the first section, circulation air speed and temperature should be higher with bigger heat exchange area, and air will be passed through products from down to up because in the 1st section, the product has large moisture content and is heavy. The second section is for drying products with less moisture content and weight.

In this section, hot air will be passed from up to down. The temperature of each zone will be automatically controlled. Products will be collected by hopper after belt dryer and will be discharged by screw discharger.

Features:

Being adapted the heating way of jacket and inner stirring at the same time, its heat conducting area is large and its heat efficiency is high.
Being installed stirring in the machine, it makes raw material in the cylinder form the state of continuous circle inside the
cylinder, so the uniformity to be heated of raw material is raised greatly.
Being installed stirring apparatus in the machine, pulpiness, pastelike mixture or powder raw materials can be dried easy.