Slag blocking device

The utility model discloses a residue blocking device, and belongs to the technical field of sewage treatment equipment, the residue blocking device comprises a filtering mechanism and a cleaning mechanism, one side of the filtering mechanism is provided with the cleaning mechanism, the filtering mechanism comprises a filtering plate, a bottom plate, a first clamping groove, a first hydraulic cylinder and a first connecting rod, and the two ends of the filtering plate are inserted into the first clamping groove; one end of the filter plate is connected with a push rod of the first hydraulic cylinder through a first connecting rod, the end, away from the first connecting rod, of the filter plate is connected with the bottom plate, the cleaning mechanism comprises a second hydraulic cylinder and a scraper, a push rod of the second hydraulic cylinder is connected with the scraper, a brush is arranged on the face, close to the filter plate, of the scraper, and the scraper is located on one side of the sewage chan