Heating furnace for producing gasoline by utilizing waste oil sludge, oil residue and straws

The utility model discloses a heating furnace for producing gasoline by utilizing waste oil sludge, oil residue and straws, and relates to the technical field of heating furnaces. The heating furnace comprises a square heating furnace body (2), wherein an electric heater (3) is arranged below the heating furnace body; a controller (1) is arranged on the side surface of the heating furnace body; a material feeding port (4) is formed in the top part of the heating furnace body; a material discharging port (5) is formed in the lower side part of the heating furnace body; a valve is arranged at the material discharging port; a temperature sensor (7) and a pressure sensor (9) are arranged on the top part of the heating furnace body; a liquid level sensor (8) is arranged on the upper part at the inner side of the heating furnace body; the temperature sensor, the pressure sensor, the liquid level sensor and the electric heater are respectively connected with the controller. By the heating furnace, the problems that