The invention relates to a circulating high-temperature
drying test box. The circulating high-temperature
drying test box comprises a box body, a box door is arranged on the front end surface of the box body, the box door and the box body are connected in a sealing mode, a working chamber and a heating chamber are arranged in the box body, the heating chamber is arranged above the working chamber, a heating device is arranged in the heating chamber, a
frequency conversion fan is arranged on one side of the heating chamber, the
frequency conversion fan is arranged horizontally, the
frequency conversion fan is arranged on the side wall of the box body, an
impeller is installed on an output shaft of the frequency conversion fan, the
impeller is arranged in the heating chamber, a humidification
system is arranged on the rear of the working chamber, a sample basket is arranged at the bottom of the working chamber, two air duct are arranged on the two sides of the left and right side of the working chamber respectively, the working chamber, the heating chamber in the box body and the air ducts on the left and right sides constitute a
wind circulation passage, and the heating device and the frequency conversion fan are connected with a controller through lines respectively. According to the circulating high-temperature
drying test box, air in the box body can fully flows, the temperature inside the box is ensured to be within a setting range, effects of accurate dehumidification and energy saving and cost reducing are realized, and baked
fodder is ensured to be dried faster, better and more uniformly.