Wedge wire screen tube is a filter element welded or woven with special V-shaped profile metal wire (wedge wire). Its unique structural design gives it significant advantages in solid-liquid separation, graded filtration, and other fields. The following are five common application industries and their detailed descriptions of their uses:
Oil and gas industry
In the process of oil extraction and refining, wedge wire screen tubes are mainly used for sand control filtration and mud treatment.
Downhole sand control: installed as a screen in oil or gas wells to prevent formation sand from entering the pipeline while ensuring smooth passage of oil and gas. For example, the gravel packing screen system of horizontal wells.
Mud shaker: used in the drilling fluid solid control system to separate drill cuttings from circulating mud. The wedge wire gap can be precisely controlled (usually 50-200 microns) and is resistant to high pressure and corrosion.
Oil, gas, and water separator: filters suspended matter in the pretreatment stage to protect downstream equipment.
Water treatment and the environmental protection industry
Wedge wire screen tube is the core filtering component of sewage treatment and the recycled water system.
Sewage treatment plant: used for effluent screening of primary and secondary sedimentation tanks to remove suspended solids (SS), with a gap as low as 0.1mm.
Rainwater collection system: used as the lining of a cyclone separator to intercept impurities such as leaves and silt.
Seawater desalination pretreatment: filter algae and shellfish larvae in seawater to protect the reverse osmosis membrane.
Garbage leachate treatment: acid and alkali-resistant wedge wire screen is used for high-concentration wastewater filtration.
Mining and mineral processing industry
In mineral processing, a wedge wire screen is used for classification and dehydration.
Cyclone underflow screen: separates heavy media (such as magnetite powder) from tailings, with a gap of usually 0.5-3mm.
High-frequency vibrating screen: particle size classification of coal or iron ore, such as the separation of lump coal and fine coal.
Tailings dry discharge system: used in conjunction with a ceramic filter to achieve rapid dehydration of tailings.
Food and pharmaceutical industry
In sanitary production, wedge wire screens are used for material filtration and process fluid purification.
Syrup filtration: remove crystalline impurities in sugar solution, using food-grade 304 stainless steel.
Beer brewing: Replace traditional filter cloth when filtering wort to improve filtration efficiency.
Liquid fine filtration: In the production of biological agents, 0.05mm micron screens are used for pretreatment before terminal sterilization.
Chemical and energy industry
Wedge wire screen tubes perform well in corrosive environments and high-temperature conditions.
PTA production: filtering catalyst particles (such as palladium carbon) in acetic acid solution.
Nuclear power plant: filtering condensate system to prevent pipe scaling.
Biomass energy: pre-treating straw slurry in biogas projects to separate fiber impurities.
