Model: | DM02 |
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Brand: | 369 |
Origin: | Made In China |
Category: | Industrial Supplies / Chemical Machinery |
Label: | knitted wire mesh , demister pad , up style demister pa |
Price: |
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Min. Order: | - |
Last Online:23 Aug, 2023 |
The principle of wire-mesh demister:
The diameter of the separated drops in the gas which comes out in the ordinary chemical industry operation is about 0.1~5000μm.The separation of drops
which have the diameter of above 100μm can be solved easily, for the sedimentation speed of such drops is relatively high. The drops which have the
diameter above 50μm can be separated by gravitational settling method, the ones which have the diameter above 5μm can be separated by inertial
impaction and centrifuge method; the smaller ones should be congregated to become lager, or be separated by using fiber filter and static demister.
wire-mesh demister(or mist eliminator)
is mainly used to separate drops of the diameter between 3μm to 5μm, the operating principle is showed in the fig at the right side. When the gas with
liquid drops rises at a certain speed, passing through the wire mesh on the grid bar, the inertia of the rising drops make them collide with the wire and
then adhere to the surface of the wire. The drops on the wire will diffuse and subside. It makes the drops form bigger ones and then flow along the
wire to the intertexture of the wire. Because the wire can be humidified, and because of the surface tension of liquid and the capillarity effect of the wire,
the drops will become bigger and bigger. They will be separated and fall when their own weight exceed the resultant force of buoyancy of the rising gas
and surface tension of liquid. They will flow to the device of the container in the backward position. As long as the speed of the gas is properly
controlled and with other proper condition, the efficiency of foam remove will be as high as 97% after the gas pass through wiremesh demister.
The purpose of removing foam will be achieved completely.
Introduction
Mist in Gas has bad impact in various aspects, including environmental pollution, corrosion, and loss of raw materials. mist that are mechanically generated
from scrubber, cooling tower and vaporizing pipes, generally has relatively large mist with tens to hundreds of microns in diameter. Micro mist is generated
by condensations or chemical reaction of gas.
Style |
Applications |
DSM-80 |
Provides low pressure drop at high velocity and general collection efficiency. Used for collecting lager particles. |
DSM-144 |
Mainly used in the field of petrochemical plants. Provides relatively low pressure drop and collection efficiency
|
DSM-193 |
Most commonly used. Provides collection efficiency of up to 98~99% on 5~10 microns at velocity of 1~5m/sec. |
DSM-390 |
Provides high pressure drop at low velocity of 1m/sec and collecion efficiency of up to 90% or greater. |
DSM-220 |
Used for collecting minute particles sized for 1 micron, Thicker is better in case of minute particles with low density (approximately 10g/m3) |
DSM-432 |
Used for collecting sub-micron particles 0.05~1 micronc More effective than DS-220 Style |