Sloping-plate sedimentation equipment

The invention relates to sloping-plate sedimentation equipment. After a sloping-plate sedimentation tank and a sloping-plate sedimentation tank with a small interval run for a certain period of time or when water quality and water amount change in a sedimentation process applied to water treatment, sedimentation efficiency and the water quality of drained water fall remarkably, severe sludge accumulation and blockage between a sloping pipe and a sloping plate are led and even the sloping pipe and the sloping plate are crushed by pressure. The equipment comprises a sedimentation tank (1), wherein a group of Y-shaped sloping plates (6) are connected to the sedimentation tank; the sloping plates are connected with one another through connecting ribs (7); the included angle between each sloping plate and the horizontal plane is 60 degrees; a water collecting groove (3) is formed on the sedimentation tank; a water outlet pipe (4) is arranged at the tail end of the water collecting groove; and a sludge discharge pi