Protruded spiral groove type swirler

Abstract

The invention relates to a protruded spiral groove type swirler. The swirler is of a hollow structure, wherein a hollow cylinder section is arranged at the upper part of the swirler, and a hollow cone section is arranged at the lower part of the swirler; a feeding pipe is communicated to the upper end of the cylinder section, downward inclines relative to the cylinder section and is tangent to the cylinder section, an overflow pipe is inserted into the cylinder section, and the bottom of the cone section is a closed end; a spiral groove is formed in the wall of the swirler in a manner that the wall of the swirler spirally and externally protrudes from top to bottom along the circumferential direction, the upper end of the spiral groove is communicated with the feeding pipe, and the lower end of the spiral groove is communicated with an underflow pipe; light and heavy mediums enter the swirler through the feeding pipe, the heavy mediums slide downward in the spiral groove and are discharged through the underflow pipe, and the light mediums are discharged through the overflow pipe, thereby realizing the separation of the light and heavy mediums. According to the protruded spiral groove type swirler, the separation of the light and heavy mediums can be led passingly when a swirling flow field is not changed, so that the grading efficiency is improved, the division diameter is decreased, and common overflow and thickening phenomena of the swirler are reduced.

Description

technical field [0001] The invention belongs to the field of material separation, in particular to the fields of gas-solid, liquid-solid, liquid-liquid, gas-liquid separation, and specifically relates to an outwardly protruding spiral groove type cyclone. Background technique [0002] The cyclone is a commonly used separation device at present. When working, a pump is used to drive the mixed phase into the cyclone from the feed pipe at the upper end under a certain pressure. Due to the difference in centrifugal force, two vortices, inner and outer, are formed in the cyclone. The heavy phase is thrown to the wall, slides down the wall, and is discharged from the bottom flow port, and the light phase flows out from the upper overflow port through the inner vortex. The cyclone has a simple structure, no moving parts, a small footprint, and a large production capacity, so it is widely used in the fields of gas-solid, liquid-solid, liquid-liquid, and gas-liquid separation. [00...

AI Technical Summary

Problems solved by technology

As far as the overall structure of the cyclone is concerned, this improvement is only partial, and the effect is still not ideal in terms of greatly improving the separation efficiency of the cyclone

In addition, the problem that the separated particles of the cylinder bounce back into the central light medium flow area on the wall of the cylinder and the problem that the deposited particles are rolled up again at the bottom of the round table is still unsolved, and the phenomenon of overflow and roughness is serious. This defect has an impact on the separation efficiency. very big

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