Demister pad, also called mist pad, wire mesh demister, mesh mist eliminator, catching mist, mist eliminator, is used in gas entrained mist separation column to guarantee the filtering efficiency.
Demister pad is commonly placed at the top of the packing tower, which can not only ensure the mass transfer efficiency, but also reduce the board spacing. Demister pad is widely used in chemical, petroleum, pharmaceutical, light industry, metallurgy and other industrial production in the vertical cylindrical equipment vapor-liquid separation device. It can also be used in the desulfurization and other productions to remove oil mist, toxic and poisonous gas.
Features of demister pad
Simple structure.
Lightweight and easy to transport.
High porosity, less pressure drops.
Large surface area and high separating efficiency.
Easy to install, operate and maintain.
Durable and long service life.
Corrosion and rust resistance.
Selected wire mesh form of demister pad and domestic standards
Selected wire mesh form：Selected demister pad forms have four categories: standard type, efficient type, high penetration type and shock absorber type.
Domestic standards
Wire mesh demister pad domestic standards are divided into HG5-1404 (1405, 1406) - 81, HG/T 21618-1998, HG/T 21586-98.
HG5-1404(1405, 1406)-81
The standards are divided into the riser-type (1404), the necking type (1405) and full bore type (1406).
The diameter of demister is from 300 mm to 6400 mm and height is 100 mm and 150 mm.
Mark example: HG5-1406-81-11, 304 refers to the 304 stainless steel of grating and wire mesh, dull bore coat type, 1600 mm diameter, 100 mm height demister pad.
HG/T 21618-1998
New standard merges riser type, reducing necking type and full bore type installation form and divide into SP, HP, DP and HR four kinds of network types and expanded the type of material section.
Mark example: HG/T 21618 wire mesh demister S1600-100 SP 304 indicates that 304 stainless steel of gratings and wire mesh, coat type, 1600 mm diameter, 100 mm height, SP screen demister grid.
HG/T 21586-98 (drawer mesh demister device)
This standard is appropriate for the demister element, which is often needed to be replaced or cleaned, for example sulfuric acid drying tower and absorber device. The nominal diameter has 56 kinds ranging from DN 30 mm to DN 5000 mm.
Mark example: HG/T 21586.11-98 WME 1600-100 304/Q235-A refers to the wire mesh using 304 carbon steel grill, 1600 mm in diameter, 100 mm in height drawer type demister pad.
Other non-standard wire mesh demister
Wavelike type, embedded type, external loading type, SWD1 type, square, rectangular and irregular and so on.
Knitted metal wire mesh is also known as gas-liquid filter mesh, gas-liquid mesh, demister mesh, foam catching mesh, foam breaking mesh, metal wire woven knitted mesh, foam mesh, knitted metal mesh, knitted filter mesh, shielding wire mesh, silencer mesh, shock-absorbing mesh, flat wire woven mesh, knitted mesh, braided wire mesh, shielding metal wire mesh, demister mesh, demister mesh, etc.
Knitted metal wire mesh is also known as gas-liquid filter mesh, gas-liquid mesh, demister mesh, foam catching mesh, foam breaking mesh, metal wire woven knitted mesh, foam mesh, knitted metal mesh, knitted filter mesh, shielding wire mesh, silencer mesh, shock-absorbing mesh, flat wire woven mesh, knitted mesh, braided wire mesh, shielding metal wire mesh, demister mesh, demister mesh, etc.
Knitted metal wire mesh is also known as gas-liquid filter mesh, gas-liquid mesh, demister mesh, foam catching mesh, foam breaking mesh, metal wire woven knitted mesh, foam mesh, knitted metal mesh, knitted filter mesh, shielding wire mesh, silencer mesh, shock-absorbing mesh, flat wire woven mesh, knitted mesh, braided wire mesh, shielding metal wire mesh, demister mesh, demister mesh, etc.