The hot air circulation oven adopts a high-temperature resistant circulation fan, and the forced hot air heated by electric heating tubes or steam heat exchangers circulates inside the oven to enhance heat transfer, improve water evaporation rate, and shorten drying time. The entire box adopts a fully enclosed structure, with hot air circulating inside the box, reasonably discharging humid and hot air, and supplementing fresh air.
The hot air circulation oven is designed specifically for industrial production and is widely used in the pharmaceutical industry for drying raw materials such as active pharmaceutical ingredients, traditional Chinese medicine decoction pieces, extracts, powders, granules, granules, water pills, packaging bottles, etc. It is also suitable for drying dehydrated vegetables, feed, monosodium glutamate seasoning, chemical pigments, rubber, fiber, electronic components, new materials, clothing, food and other industries.
The hot air circulation oven mainly consists of the following parts:
1. Shell: It is usually welded from steel plates and coated with anti-corrosion paint on the surface, which has good corrosion resistance.
2. Isolation layer: Located between the outer shell and the inner liner, it mainly serves as a thermal insulation layer.
3. Inner liner: Made of stainless steel plate, it has good high temperature resistance and anti-corrosion performance.
4. Heating system: including electric heating tubes or steam heaters, used to heat air to a set temperature.
5. Air supply system: including air supply fan and air filter, used to send heated air into the box.
6. Return air system: including return air inlet and return air duct, used to recover and reheat the air passing through the material.
7. Control system: including temperature controller, timer, alarm, etc., used for automatic control and monitoring of the oven.