Equipment for heated air circulation

The utility model relates to a machinery drying equipment especially relates to an equipment for heated air circulation, mainly includes: five ovens, heat exchanger and total exhaust pipe, the oven divide into first oven, second oven, third oven, fourth oven and the 5th oven, said third oven, fourth oven and the 5th oven are equipped with a plurality of heat exchanger and a plurality of circulation exhaust pipes respectively, and first oven, second oven, third oven, fourth oven and the 5th oven all are equipped with the exhaust pipe, said heat exchanger is equipped with updraft ventilator, and first oven, second oven are aired exhaust the bank of tubes through the circulation and is advanced hot-blastly, and go up the exhaust pipe and be equipped with the air register that is used for the choke amount of wind, said heat exchanger and updraft ventilator's junction are equipped with the air register that is used for adjusting the amount of wind, adopt heated air circulation to utilize, offer the last period oven and use as new wind regime, very big improvement the utilization ratio of the energy, reduced the waste of the energy