Sand discharging device for river regulation

Abstract

The invention provides a sand discharging device for river regulation, and relates to the technical field of river regulation. The sand discharging device comprises a sand blowing device and a sand sucking device; the sand blowing device comprises a sand flushing cavity, a streamline top cover and a sand rake; the sand flushing cavity is formed in the sand blowing device in a hollow mode, the topof the sand flushing cavity is covered with the streamline top cover, and a water flushing opening is formed in the front end of the streamline top cover; an opening is formed in the bottom of the sand flushing cavity, wherein the sand rake is mounted at the opening in the bottom; and the rear end of the sand flushing cavity communicates with the sand sucking device. According to the sand discharging device for river regulation, river water is ingeniously applied to the sand discharging device, the streamline top cover is utilized so that the sand discharging device can be attached to the river bottom in the advancing process, and it is guaranteed that the sand rake at the bottom can raise silt on a lower layer; and meanwhile, the river water is introduced into the sand flushing cavity through the water flushing opening formed in the front end of the streamline top cover, the silt entering the sand flushing cavity is flushed into the sand sucking device in time, and the silt is prevented from being deposited and blocked in the sand flushing cavity, in this way, the sand discharging device can effectively and efficiently clear and discharge the silt on the lower layer of a river channel.

Description

technical field [0001] The invention relates to the technical field of river channel regulation, in particular to a sand discharge device for river channel regulation. Background technique [0002] In some rivers in our country, sedimentation is quite serious. Water and soil loss in the upper reaches and sediment accumulation in the lower reaches forced the levee to be raised continuously. [0003] In order to discharge the silt deposited on the river bottom out of the river, sand discharge ships are often used to carry underwater sand discharge devices to suck the silt deposited on the river bottom. [0004] Most of the current sand discharge devices use submersible sand discharge pumps connected to sand suction pipes to directly suck the river bottom sediment, often only can suck out the floating sand on the upper layer of the river bottom, and the lower layer of sediment is compressed under the long-term action of river water pressure In fact, it is difficult to be lift...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a sand discharge device for river channel management, which solves the problem that the sand discharge device is difficult to discharge the sediment in the lower layer of the river channel

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