Separation device and separation method of activated carbon and pickling solution in preparation of activated carbon from sludge

The separation device of activated carbon and a pickling solution in the preparation of activated carbon from sludge, disclosed by the invention, comprises a main body device. The main body device comprises a support tray, a lifting ring is arranged at the edge of the support tray, a liquid drainage pipe is arranged in the center of the support tray, two fixed columns are connected to two sides of the liquid drainage pipe, the lower ends of the fixed columns are connected with the support tray, the upper ends of the liquid drainage pipe are in socket joint with one end of a pickling solution pipe, two connecting pipes are in socket joint with the other end of the pickling solution pipe respectively, the two connecting pipes are communicated with a pickling solution receiving container and a buffer triangular flask respectively, and the buffer triangular flask is connected with a mini negative pressure pump. The invention further discloses a method for separating activated carbon and a pickling solution using