Improved medium-frequency electromagnetic induction heating device for treating oil-bearing sludge

The invention provides an improved medium-frequency electromagnetic induction heating device for treating oil-bearing sludge, which mainly comprises a sludge conveying pipeline and a medium-frequencyelectromagnetic induction heating box body. The oil-bearing sludge reaches the heating box body through a conveying pipeline by utilizing a sludge pump, at least one heating cavity is formed in the heating box body, and a plurality of groups of electromagnetic induction coils are directionally wound outside each heating cavity. A feeding port, an oil gas recovery device and a temperature sensor are arranged above the heating box body. A discharge hole is formed in the lower part of the heating cavity; a crushing tool bit and a hydraulic lifting device are arranged in the discharge hole; a hydraulic lifting device pushes a crushing cutter head driven by a motor to move upwards so as to crush the sludge solidified in the heating cavity after high-temperature treatment; and the crushed sludgeis conveyed to the outsid