NOVELTY - Biogas tank waste cleaning device comprises a base (1), a liquid storage tank (2), a residue liquid separation tank (3), a driving device (4), a spiral shaft (6), a slag pipe pump, a water pump and a return pipe. The liquid storage tank is set on base. The slag liquid separating tank is set in liquid storage tank. The driving device driven by a support installed on base. An input shaft can drive spiral shaft to rotate. The spiral shaft is connected to slag liquid separating tank by a rotatory shaft. The two sides of residue liquid separation tanks are set with a slag inlet and a slag outlet.    USE - Used as biogas tank waste cleaning device.    ADVANTAGE - The device has low labor intensity, and achieves effective separation of biogas residue and biogas slurry.    DETAILED DESCRIPTION - Biogas tank waste cleaning device comprises a base (1), a liquid storage tank (2), a residue liquid separation tank (3), a driving device (4), a spiral shaft (6), a slag pipe pump, a water pump and a return pipe. The liquid storage tank is set on base. The slag liquid separating tank is set in liquid storage tank. The driving device is driven by a support which is installed on base. An input shaft can drive the spiral shaft to rotate. The spiral shaft is connected to slag liquid separating tank by a rotatory shaft. The two sides of the residue liquid separation tanks are respectively provided with a slag inlet and a slag outlet. The liquid storage tank is set with at least one liquid storage tank which is connected to a liquid outlet. The slag inlet is connected to pump pipe and water pump by a slag port. A water pump is set along a portion of a bottom biogas tank. The liquid storage tank is set with an upper inlet. The inlet is connected to biogas tank by return pipe.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the biogas tank waste cleaning device.    Base (1)    Liquid storage tank (2)    Residue liquid separation tank (3)    Driving device (4)    Spiral shaft (6)