Round middle ring water and sand separating device

Abstract

The invention discloses a round middle ring water and sand separating device, which comprises a direct culvert pipe communicated with an inlet channel, and a sand basin provided with a water outlet and arranged in the sealing ring of an annular catchment channel. A through hole arranged on the top surface of the direct culvert pipe arranged in the sand basin is communicated with the water outlet of the sand basin; the connector of the direct culvert pipe and an annular sand sluicing canal is provided with a sand sluicing gate in the sand basin; a sand sluicing culvert pipe connected with the annular sand sluicing canal passes through the lower part of the annular catchment channel, and the outlet of the annular sand sluicing canal is connected with a sand sluicing channel; the sand sluicing channel is provided with an outer sand sluicing gate; an annular water blocking wall hanging into the sand basin is supported and fixed on the inner weir wall of the annular catchment channel; and filtering devices are evenly arranged on the water surface between the bottom of the annular water blocking wall and the inner weir wall of the annular catchment channel. The invention has good water and sand separating effect on sand-carried stream, little desanding time and little water consumption of sand sluicing, can realize continuous water supply, has good water filtering effect, can separate sand with smaller particles and suspended particles in sediment water in a sedimentation basin, thereby improving the water supply quality.

Description

technical field [0001] The invention relates to a water conservancy project, and belongs to a device for separating water and sand in a river course by utilizing the energy of dynamic water flow itself, in particular a water and sand separation device for a circular central ring. Background technique [0002] Mountain stream rivers have large sediment content and uneven thickness, and the sediment concentration reaches tens to hundreds of kilograms per cubic meter, which brings great inconvenience to people's domestic water, agricultural and industrial water; in terms of agricultural production: Sediment often silts up the channel, which affects the channel's water-passing capacity and reduces the service life of the water conservancy project. [0003] At present, the engineering measures to solve the sedimentation problem in the river course are: linear grit chamber and curved grit chamber. [0004] Linear grit chambers can be divided into single-chamber grit chambers, dou...

AI Technical Summary

Problems solved by technology

The desilting tank takes less time to discharge sand, the water consumption for sand flushing is small, the separation effect of water and sand is good, and continuous water supply can be realized. However, the desilting tank can only settle large sand particles, and suspended particles with a specific gravity greater than 1 can Sediment to the bottom of the pool by its own gravity

Smaller particles of sediment and suspended particles with a specific gravity of less than 1 in the sand-laden water cannot be separated in the water, and the water supply quality is relatively low

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