A demister, or also known as mist eliminator, is a high efficiency separation device often fitted to vapor liquid separator vessels to enhance the removal of liquid droplets entrained in a gas or vapor stream. Demisters may be a mesh type coalescer, vane pack or other structure intended to aggregate the mist into droplets that are heavy enough to separate from the vapor stream.
Mist eliminators/ demisters are fabricated from knitted materials with interlocking asymmetrical loops of metal or plastic with typical diameters being 0.1 – 0.3mm. Special applications for wire diameter 0.35mm to 0.024mm, tube width 1/4" to 42" diameter.
2.DEMISTER Materials:
Stainless Steel wire: 200, 300 and 400 series-AISI201?202?301?302?304?304L?321?316?316L,410S, etc.
Copper wire, Aluminium wire, Nickle wire, Titanium wire, Inconel, Monel, Hastelloy wire...
Plain Steel, Galvanized Steel...
Polypropylene, Polyethylene, PVC, Teflon(PTFE), Nylon, etc.
Stainless steel wire with cotton thread, fiber glass, etc.
3.FIXING METHODS&GRID
The demister should be horizontally fixed and supported. At the bottom or both the top and the bottom, a support grid which is welded with FB 25X3t, RB6Ø of the same material as that of the demister pad at proper intervals (APP150mm), is used. For fixing the grid and the pad, RB6Ø or 1.6Ø tie wire is used.
4.DEMISTER FEATURES (Mesh Pad type)
1).It shows 99% efficiency under general conditions and velocity (1~3m/sec or higher).
2). Over 98% open area is guaranteed under any conditions so pressure drop caused by the use of the demister can be disregarded (0.1”~1.0 W/G).
3). It can be made of any material suitable for the given temperature and corrosion-resistance.
4). It is possible to install by use of M/H so it is easy to handle.
5). There is no restriction in the conditions, place, and size for use. It is install-able on the existing systems.
6). Self-cleaning is possible. It is semi-permanent so it is economical.
5.USE OF DEMISTER
1).Vacuum Tower - The treatment quantity by the demister goes up by 35%. The quality of oil gas is improved.
2). Absorber - Some gasoline plants use a glycol absorber (Demister mounted) so the installation cost is being repaid within a month.
3). Knockout Drums and Separators - If Demister is used, ?inch drum is sufficient.
4). Gas Separator Vessels - Hydrocarbon in gases is collected so gas of 1/0.1 billion purity is produced out.
5). Evaporator - Product loss goes down and purity is remarkably improved.
6). Scrubber - In the field of caustic soda, the demister is used to prevent air pollution.
7). Distillation Column - If Demister is used, the cost for distillation goes up, the quantity of treatment increases by 20%, and purity is remarkably improved.
8). Dust Collectors - The dust collector of a wet type has excellent collection capacity.g is possible. It is semi-permanent so it is economical.
Wire mesh demister, or named wire mesh mist eliminator, is a kind of vapor-liquid separating device. It is widely used in chemical industry, petroleum, vitriol, medicine, light industry, metallurgy, machinery, construction, aviation, sea transportation and environmental protection. Characters: 1.simple structure, light weight; 2.big rate of porosity, small pressure drop; 3.big contact surface, high efficiency of eliminating mist; 4.convenient to install, operate and repair; 5.long life; The wire mesh used in wire mesh demister has to be made from gas-liquid filter mesh according to working condition.
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Materials: carbon steel and stainless steel (302,304,304L,316,316L etc). Characteristics:The welded stainless steel water well screen is made up of rods and warp. The rod can be round wire, triangular wire or trapezoid wire. The warp is triangular wire (V-shaped wire). Water well screens have a structure and high open area, as well as accurate slot dimension. At the same time, water well screen have heat-resisting, anti-corrosive, good machine capability, last long, safety and reliability and so on characteristics. It can be used in many kinds of medium filtering. Uses: The strainer is a kind of filtered water tubing with the perforation .it can use with the deep well pump, dive the water pump, also may use in the water-treating equipment, the environmental protection, the sea water transforms into the industrial water and life use water desalination treatment, running water treatment, water softening treatment, the petroleum industry: The petroleum product terminal filters and the chemical acid, the alkali liquid filters, the ethyl alcohol and so on the organic solution recycling filters. Continuous slots significantly increase discharge area,thus providing greater access to water-bearing zone . We can produce this pipe with diameter 80mm-550mm ,slot size 0.1mm-10mm,length 50mm-5850mm .
Wire size: 0.016 inch dia Mesh size: 20 mesh Opening area: 46.2% Opening width: 0.034 inch 48 inch wide x 100 linear feet Moc: stainless steel a316 Oem: gerard daniel & co, p/n: 9319t87 Test certificate required
Galvanized Crimped Wire Mesh material: carbon steel hole size: 25X25 mm mesh size: 1275X2000mm wire size: 3.5mm
Supplier: Rare-precious metal wire mesh, demister, filter disc, filter tube
Stainless Steel 304 Wire Mesh Material â?? SS304 Wire Diameter â?? 0.28mm Mesh size 3x4mm Width â?? 0.3m Length (roll) â?? 25m Weight approx. 7KG per roll