Efficient thickener

The utility model discloses an efficient thickener and relates to the technical field of machinery. Comprising a thickener box body, a material collecting groove, a pipeline, a material scraping device, a bridge frame and a driving device, an overflow groove is formed in the top of the thickener box body, and a concentration tank is arranged at the bottom of the thickener box body; the material collecting tank is communicated with the concentration tank; pipelines are arranged in the overflow groove and the material collecting groove; the scraping device comprises a main shaft longitudinally arranged in the thickener box body, a harrow frame fixedly connected with the main shaft, first scraping plates fixedly connected to the two sides of the harrow frame, a second scraping plate fixedly connected to one side of the bottom of the harrow frame and a third scraping plate fixedly connected to the other side of the bottom of the harrow frame, and the second scraping plate and the third scraping plate are symmetri