Compressed air auxiliary heating device for EPP foaming

The utility model discloses an auxiliary compressed air heating device for EPP (expanded polypropylene) foaming, which comprises a compressed air heating tank and a pressure tank liner, the compressed air heating tank is provided with a heating component, and one end of the compressed air heating tank is provided with a compressed air inlet pipeline; the top end of the compressed air heating tank is connected with the pressure tank inner container through a hot compressed air inlet pipe, a hot compressed air outlet pipeline is arranged at the top end of the pressure tank inner container, a pressure tank heat preservation sleeve is arranged outside the pressure tank inner container, and an auxiliary heating mechanism is further arranged outside the hot compressed air inlet pipe. According to the secondary foaming prepressing device, compressed air can be heated, the effects of controlling the temperature and the pressure of the compressed air can be achieved, the effects of saving energy and improving efficien