NOVELTY - Sewage sludge fast pyrolysis system comprises a drying unit is for carrying out the sludge drying process, a fast pyrolysis reactor comprising a reactor main body with a reaction space. The reaction space is provided with a dispersing area. The discharging area comprises a pyrolysis zone and a discharge zone. The discharge zone is provided with a hopper and a sludge inlet. The cloth gas inlet is connected with the hopper is used for material gas to make the sludge in the material air enter into the dispersing area and uniform soil into pyrolysis zone.    USE - Used as sewage sludge fast pyrolysis system.    ADVANTAGE - The system ensures high use value homogeneous biological oil production from sludge.    DETAILED DESCRIPTION - Sewage sludge fast pyrolysis system comprises a drying unit is for carrying out the sludge drying process, a fast pyrolysis reactor comprising a reactor main body with a reaction space. The reaction space is provided with a dispersing area. The discharging area comprises a pyrolysis zone and a discharge zone. The discharge zone is provided with a hopper and a sludge inlet. The cloth gas inlet is connected with the hopper is used for material gas to make the sludge in the material air enter into the dispersing area and uniform soil into pyrolysis zone. The pyrolysis zone includes a multi-regenerative radiant tube along the reactor body height direction space. The multi-regenerative radiant tube comprises many horizontally spaced regenerative radiant tubes. The discharge zone comprises a half coke outlet and many pyrolysis gas outlets. The pyrolysis gas outlet is provided in the dispersing zone and/or the pyrolysis zone. The sludge inlet is connected with the drying unit. The fast pyrolysis reactor is adapted to apply the regenerative radiant tube to dry the sludge by the rapid thermal process to obtain high temperature semi-coke and pyrolysis gas. The spray tower is connected with the pyrolysis gas outlet and is suitable for use for cooling the pyrolysis gas for spray processing to obtain biological oil and fuel gas. An INDEPENDENT CLAIM is also included for fast pyrolysis of sewage sludge fast pyrolysis system comprising (i) drying sludge using drying unit to obtain dry sludge, (ii) taking into reaction space through sludge inlet, introducing combustible gas and air are into the regenerative radiant tube and carrying out fast pyrolysis process at not greater than 30 degrees C to obtain high-temperature semi-coke and pyrolysis gas, and (iii) spraying cooling liquid into pyrolysis gas using spray tower to obtain obtain bio-oil and fuel gas, where Regenerative radiant tube preheating section temperature of 550-900 degrees C, fast pyrolysis section temperature of 500-800 degrees C and complete pyrolysis section temperature of 500-800 degrees C.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the sewage sludge fast pyrolysis system.