Excess material recovery device

The utility model belongs to the technical field of concrete pump pipe cleaning, and discloses an excess material recovery device which can receive cleaning water discharged by a cleaning water discharge pipe, the cleaning water comprises coarse aggregate, fine aggregate and waste water, and the excess material recovery device comprises a waste water collection mechanism, a fine aggregate pool, a coarse aggregate pool and a screening roller; the fine aggregate tank is communicated with a wastewater collecting mechanism; the coarse aggregate tank and the fine aggregate tank are arranged side by side; the screening roller is communicated with the cleaning water discharge pipe, is obliquely arranged in the fine aggregate tank and extends to the coarse aggregate tank, a plurality of screening holes are formed in the outer wall of the screening roller, the screening holes are configured to block coarse aggregates, and the screening roller can rotate to increase centrifugal force. The excess material recovery devic