Cyclone desander for removing fine sand from surface water

Abstract

The invention discloses a cyclone desander, which belongs to a solid-liquid separation device. The cyclone desander is a cyclone desander for removing fine sand from surface water, which is developed for removing sand from river water sources or other water sources with high sand content effectively. The cyclone desander comprises a cavity, a feed pipe, an overflowing pipe and a bottom flow pipe, wherein the cavity consist of an upper cylindrical cavity, a middle large conical cavity and a lower small conical cavity; the feed pipe is connected from the side wall of the upper cylindrical cavity tangentially; the bottom part of the lower small conical cavity is connected with the bottom flow pipe; the overflowing pipe is led out upward from the center of the upper cylindrical cavity; a central air duct is arranged at the position of the central axis of the cavity of the cyclone desander; the lower end of the central air duct is open and positioned between the upper edge of the bottom flow pipe and the lower edge of the overflowing pipe; and the upper end of the central air duct passes through the overflowing pipe and leads out a central air column absorbed by the cyclone desander. Through the arrangement of the air duct, the processing capacity of the cyclone desander is improved by about 30 percent and the energy consumption of the cyclone desander is reduced by about 20 percent compared with those of the common cyclone desander.

Description

technical field [0001] The cyclone desander of the invention belongs to a solid-liquid separation device, and in particular relates to a cyclone desander with high sand removal efficiency, low energy consumption and underflow productivity suitable for fine particle separation. Background technique [0002] The hydrocyclone desander is a device that uses pressure to convert the linear motion of the fluid into a rotary motion, and relies on centrifugal sedimentation for separation. It has no moving parts inside, small footprint, easy installation, continuous operation, and simple maintenance. It is regarded as an ideal water treatment equipment for sand removal in water source heat pump systems. [0003] When choosing a cyclone desander for source water with a high amount of fine sand, a small diameter and small cone angle cyclone desander is usually used. Some studies use the form of double cone sections to improve the removal efficiency of fine particle sediment. The small-...

AI Technical Summary

Problems solved by technology

These two structures can effectively reduce the operating energy consumption of the cyclone desander and improve the separation efficiency, but the central solid rod occupies the inner space of the cyclone desander, resulting in a reduction in processing capacity; the central fin is placed inside the desander , not suitable for equipment application of desander

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