The present application relates to a
sediment screening device for water conservancy projects, belonging to the technical field of
sediment screening, and comprising: a screening box; a first screen, located inside the screening box and hinged with a first connecting column, the first connecting column being connected to the side wall of the screening box; a
second screen, located inside the screening box and below the first screen, the
second screen being hinged with a second connecting column, the second connecting column being connected to the side wall of the screening box, and the screening accuracy of the
second screen being higher than that of the first screen; a first vibration
assembly, arranged on the first screen; a second vibration
assembly, arranged on the second screen and having the same structure as the first vibration
assembly; wherein, the first vibration assembly is used to vibrate and screen the
sediment on the first screen in a manner of large amplitude and low vibration frequency, and the second vibration assembly is used to vibrate and screen the sediment on the second screen in a manner of low amplitude and high vibration frequency. The present application has the effect of improving the
screening effect of sediments with different particle sizes.