Double-layer cone cyclone separator and anti-backmixing method thereof

Abstract

The invention discloses a double-layer cone cyclone separator and an anti-backmixing method thereof. The double-layer cone cyclone separator comprises a barrel, an outer cone, an inner cone, an inverted cone, a dust collector and a lifting mechanism, the cylinder body, the outer cone, the inverted cone and the dust collector are coaxially and vertically arranged in sequence from top to bottom, and are communicated with one another through flanges in a sealing manner; the lower end of the outer cone is a small-caliber end, and the upper end of the inverted cone is a small-caliber end; an inner cone with an open upper end is coaxially sleeved in the outer cone at intervals, the lower end of the inner cone is a small-caliber end, and the inner cone vertically moves up and down along the outer cone through a lifting mechanism, so that the size of a slit between the inner cone and the lower end of the outer cone is adjusted; an air inlet pipe horizontally penetrates through the upper end of one outer side face of the barrel, and an exhaust pipe vertically penetrates through the middle position of the upper end face of the barrel. The inner cone and the lifting mechanism are additionally arranged to restrain the problem that dust in the dust collector is brought out by upper rotational flow, and consequently the separation efficiency is reduced.

Description

technical field [0001] The invention relates to a cyclone separator, in particular to a double-layer cone cyclone separator and an anti-backmixing method thereof. Background technique [0002] The cyclone separator is a device that uses the centrifugal force of the airflow to throw the particles to the wall to achieve separation. During the separation process, it is necessary to consider the complex interactions of the airflow, the characteristics of the particles themselves, and the static electricity and adsorption between the two phases. Although the cyclone separator has been widely used in engineering practice, with the development of economy, the change of the environment and the increase of production scale, the performance requirements of the cyclone separator are becoming more and more stringent. The internal flow of the cyclone separator is a complex three-dimensional strong swirling flow, in addition to the main vortex, it is also accompanied by local secondary fl...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a double-layer cone cyclone separator and its anti-backmixing method. Based on the analysis of the movement law of the dust and air flow field, an inner cone and a lifting mechanism are added on the basis of the traditional design to contain the The problem that the dust in the dust collector is carried out by the upper swirl flow leads to a decrease in separation efficiency

Images