Oil pressing device and method based on immersion heating and application of oil pressing device and method

The invention discloses an oil pressing device and method based on immersion heating and application thereof.The oil pressing device comprises a box shell (1) used for storing heated oil liquid, an oil press (93) used for conducting oil pressing treatment on cooked oil crops and a stir-frying barrel device arranged between the box shell (1) and the oil press (93), overall heating of the stir-frying barrel device is achieved through the box shell (1), and the oil pressing barrel device is heated through the oil press (93); by means of the oil pressing device, oil pressing treatment is conducted on cooked oil crops, surrounding heating treatment is conducted on the oil crops in the conveying state through the frying cylinder device, and the heating pipeline with a zigzag path in turn-back movement is arranged; the technical problems that when the frying pan is used for frying oil crops, only the end face of the bottom end of the frying pan can be heated, and the frying interval of the oil crops is in an open st