The gas dual-use WRF series drying and heating hot air fan (furnace) products manufactured by our company are designed by China Agricultural Engineering Research and Design Institute. After five upgrades and replacements, they have reached the leading level in China and obtained national patent technology products in 2003. This furnace integrates coal combustion and heat exchange, and uses the latest indirect heating technology for heat exchange at the high-temperature parts of the furnace body. Flame and air go their separate ways, absolutely pollution-free, with a thermal efficiency of up to 90%, fast heating, small size, easy installation, reliable use, and low price (compared to a one ton steam boiler, this heating system is only half the price of a boiler heating system). High temperature resistance measures have been taken, which greatly improves its lifespan compared to a tubular hot air stove. The highest output hot air temperature can reach 300 ℃. At the same time, the smoke longitudinal brush heat sink and negative pressure exhaust method are used, and the heat exchange part does not accumulate dust, does not need to be cleaned, and the thermal performance is stable. It can use various natural gas, liquefied gas, light oil, coal or wood as fuel, and is equipped with a secondary air inlet device for complete combustion. All technical and economic indicators of the furnace have reached the leading level in China.
This furnace is a universal hot air heating device that is used in conjunction with various material drying equipment. Widely used for drying and dehumidifying agricultural products such as grains, seeds, feed, fruits, dehydrated vegetables, mushrooms, fungus, Tremella fuciformis, tea, tobacco leaves, as well as food, pharmaceuticals, chemical raw materials, and light and heavy industrial products. It can also be used for heating and warming various facilities. Baking paint, workshop, flowers, poultry houses, and workshop heating, etc.