Pyrolysis and desorption equipment for oily sludge

The utility model belongs to the technical field of pyrolysis desorption, and particularly relates to pyrolysis desorption equipment for oil sludge. The oil sludge pyrolysis and desorption equipment comprises a pyrolysis and desorption furnace, the pyrolysis and desorption furnace is connected with a desorption gas pipeline and a tail gas pipeline, the tail gas pipeline is communicated with a spray tower, a sleeve is arranged on the desorption gas pipeline, two ends of the sleeve are communicated with the tail gas pipeline to enable flue gas and tail gas to heat the desorption gas pipeline, and a heat exchanger is arranged on the tail gas pipeline. Heating flue gas is provided by the combustion chamber, and combustion-supporting air of the combustion chamber is preheated by the heat exchanger. The desorbed gas pipeline can be kept unblocked by the desorbed gas pipeline. 本实用新型属于热解脱附技术领域，特别涉及一种油污泥热解脱附设备。该油污泥热解脱附设备包括热解脱附炉，热解脱附炉连接有脱附气管道和尾气管道，尾气管道连通喷淋塔，所述脱附气管道上设置有套管，套管的两端与尾气管道连通使烟气尾气能对脱附气管道进行加热，所述尾气管道上设置有换热器，加热烟气由