Oil sludge reduction device for water-containing and oil-containing sludge

An oil sludge reduction device for water-containing and oil-containing sludge comprises vertically-arranged bearing columns and bearing beams between the bearing columns, smoke heat exchange cavities communicated with each other are formed in the bearing beams, a combustion chamber is used for supplying heat, a heat exchange barrel is installed in each smoke heat exchange cavity, and the heat exchange barrels are used for containing oil sludge to achieve indirect heating of the oil sludge. Inner cavities of the adjacent heat exchange cylinders are communicated with each other, continuous heating and transportation of the oil sludge can be achieved, the heat exchange cylinders are communicated with the heat exchanger and the oil-water collecting tank through pipelines, oil and water after evaporation can be separated and collected in the oil sludge heating process, the oil liquid evaporation and collection purity is guaranteed, and the oil sludge can be heated more uniformly. And normal recovery of oil in the