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Wire mesh demister, which is mainly used for the separation diameter greater than 3μm ~ 5μm droplets, works as shown on the right. When the gas mist with a certain speed to rise in the frame by a metal mesh grid, since the inertia of the rising mist, so that the filaments collide with the mist adheres to the surface of the filaments. Mist further spread on the surface of the filament itself, and gravitational settling mist, the mist is formed so that larger droplets to flow along its filament interleaving. Since the wettability of the filaments, the capillary effect of the liquid surface tension on the wire, making the droplets increases, until the force of its own weight exceeds the buoyancy of the rising gas and liquid surface tension, the drop was separated, flow downstream equipment to the container. As long as gas velocity conditions right choices, in addition to the gas through the screen demister, demister its efficiency can reach above 97%, we can achieve complete removal of the mist purposes.

Wire mesh demister features
• Simple structure, small size, light weight
• porosity, pressure drop
• contact with a large surface area, in addition to high foam separation efficiency
• Installation, operation, maintenance
• Long life

The new standard incorporates riser type reducer and type the full path to install three forms; proposed SP, HP, DP and four kinds of web-based HR and expanded the types of materials used; and set the sizes of the interval density increased.
Mark example: HG/T21618 screen demister S1600-100 SP 304/304
That means that the grille and screen are made of 304 stainless steel, coat type, diameter of 1600mm, height 100mm, using the SP-grid mesh demister.
3. HG/T21586-98 (drawer screen demister)

This standard is primarily applicable to the occasion by the need to clean or replace the foam element in addition to, for example, sulfuric acid drying tower and absorber device. Their choice of the nominal diameter range of 56 to DN300mm ~ DN5000mm species. Just provide figure number when ordering and selection of materials (which 316L, NS-80 and RS-2 as sulfuric acid plant selection screen material).
Mark example: HG/T21586.11-98 WME-1600-100 NS-80/Q235A
That means that the screen using NS-80, grille Q235A diameter 1600mm, height 100mm drawer screen demister.
4 waveforms (diversion type) screen demister
Waveform screen demister has the following features: • gas to go to achieve a gas line, liquid-liquid way to go, basically eliminated the secondary entrainment phenomenon, skimming effect is significantly improved.
• Since there is network block tilt, the actual skimming area increased 15 percent, adjusting air flow, speed, resistance and ease of design when skimming effect.
• waveform with a layer of wire mesh demister can be achieved in addition to the two wire mesh demister effect demister, saving installation space, down at the end of a single tower demister cost.

Other non-standard screen demister

Wire mesh demister is widely used, our company can produce a variety of special shapes for users and all kinds of import substitution demister. For example wavy, embedded, exterior type, SWD1 type, square, rectangular and irregular and the like. Demister thickness and density can be produced according to user needs.

Users who choose our products, if necessary, I can provide supporting demister installation and support parts diagram in Fig.

In addition to the parameter selection screen demister
1. HG5 series demister mesh parameters
(A) Standard

(B) efficient type

(C) high penetration type

2. HG/T21618-1998 demister mesh parameters

3 parameters to choose demister mesh

In several decades of production practice, Ann Hui has accumulated a lot of screen mesh parameters and the development of related design software. In addition to the standard required in accordance with specifications are available, the other hundreds of models of demister screen for users to choose. We can provide design services paid based on process conditions and data tables. Also provide samples or according to customer requirements for our customers to choose the right type of science.

Material selection

Examples of some devices