A kind of multi-channel composite mist eliminator and its mist removal method

Abstract

The invention discloses a multichannel-type composite demister and a demisting method. The multichannel-type composite demister comprises a demister case and a cylindrical structure enclosed by a baffle plate and arranged in the demister case with axial direction, the inner part of the cylindrical structure is divided into a filling material chamber and an intermediate rectification chamber; a second baffle plate and a third baffle plate are arranged between an upper end of the cylindrical structure and the demister case as well as a lower end of the cylindrical structure demister case; a support plate is arranged between central section of the outer wall of the cylindrical structure and the demister case, a bottom circulation chamber is formed by a cavity defined by the second baffle plate and the support plate, a top circulation chamber is formed by a cavity defined by the support plate and the third baffle plate; air flow is introduced into the bottom circulation chamber, an intermediate rectification chamber, a filling material chamber and the top circulation chamber from the bottom of the demister case in order, and is discharged from the top of the demister case. By employing a composite demisting effect with combination of multichannel separating, baffle plate inertia separating and filling material separating, little liquid drop can be removed, so that the demister can better solve the raining or gypsum rain phenomenon of a chimney.

Description

technical field [0001] The invention relates to the field of gas-liquid separation, in particular to a multi-channel composite demister and a demister method thereof. Background technique [0002] Mist eliminators are widely used in processes such as flash demisting, oil and gas separation, and acid mist purification in chemical and environmental fields. The currently commonly used mist eliminators include: gravity sedimentation separation, packing separation, filter screen separation, baffle separation, and centrifugal separation. [0003] The baffle plate demister uses the collision between the liquid droplets and the solid surface to condense and remove the liquid droplets. After the liquid droplets gather on the vertical wall surface of the zigzag channel and the bend in the zigzag place, they flow along the wall surface and are separated. Because there are more chances of collision between the droplet and the wall, the separation efficiency is higher, and the pressure ...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings and deficiencies of the above-mentioned prior art, provide a multi-channel composite demister and its demister method, and solve the problem of low demister efficiency, low space utilization and large pressure drop of traditional demisters The problem

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