304/316/316L/PP Stainless Steel demister Mesh Pad Mist Eliminators
from a
1. high Quality Filter Elements Knitted Wire Mesh for Demister Pad
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.
2. Features
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 wire-mesh demister.The purpose of
removing foam will be achieved completely.
3. Knitted Mesh Pad Demister Typical Usages:
The demister is used to separate the liquid droplets entrained by
the gas in the tower to ensure the mass transfer efficiency, reduce
the loss of valuable materials and improve the operation of the
compressor after the tower, reduce the water content, and extend
the life of the compressor, generally at the top of the tower Set
up a demister. It can effectively remove 3--5um droplets. If a
demister is installed between the trays, it can not only ensure the
mass transfer efficiency of the trays, but also reduce the plate
spacing. Therefore, the wire mesh demister is mainly used for
gas-liquid separation. It can also be used for gas separation on
air filters.
Using: Chemical, petroleum, sulfate, medicine, light industry,
metallurgy, machine, building, construction, aviation, shipping and
environment protection
4. Knitted Mesh Pad Demister mesh density and its applications
Mesh density (stainless steel) | Application |
| 50 kg/m3 | Heavy fouling, e.g. evaporators |
| 80 kg/m3 | Moderate fouling, e.g. vessel boilers |
| 110 kg/m3 | Light fouling |
| 145 kg/m3 | Heavy duty, e.g. oil and gas separators |
| 170 kg/m3 | General purpose, not totally clean |
| 195 kg/m3 | Optimum efficiency & pressure drop |
| 240 kg/m3 | High density with high separation efficiency |
| 112 kg/m3 | General purpose, clean service |
| 145 kg/m3 | Find droplet removal in clean service |
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