Wedge Wire Screen Tubes for Acidic and Alkaline Environments in the Chemical and Environmental Industries

In the chemical and environmental industries, efficient and durable filtration equipment is key to ensuring production stability and environmental compliance. Wedge wire screen tubes are the ideal filtration solution for acidic and alkaline environments due to their unique V-seam design, excellent corrosion resistance, and self-cleaning capabilities. In this article, we will discuss the advantages of wedge wire screen tubes in chemical wastewater treatment, acid gas purification, high viscosity fluid filtration and other scenarios, and analyze how to choose the right material and specifications to maximize filtration efficiency and reduce operating costs.

Wedge Wire Screen Tube Structure and Corrosion Resistance

Wedge Wire Screen Tube is made of V-shaped stainless steel wires (such as 304, 316L, 904L or titanium alloy) welded with support bars, and its core advantages include:

1.Acid and alkali corrosion resistance: 316L stainless steel remains stable in strong acids (e.g., sulfuric acid, hydrochloric acid) and strong bases (e.g., sodium hydroxide) environments, while titanium alloys and Hastelloys are suitable for extremely corrosive media.

2.V-shaped slit anti-clogging design: the wedge-shaped filament structure creates a self-cleaning effect that reduces particle buildup and the risk of clogging, and supports high-pressure backwashing for longer service life.

3.High porosity (more than 60%): Compared with traditional water filter hose (such as bridge water filter hose), the flow rate is increased by 3 times, which reduces energy consumption and improves filtration efficiency.

4.High temperature and high pressure resistance: it can withstand high temperature above 200℃ and pressure above 10MPa, suitable for chemical reactor, oil and gas separation and other harsh environments.

Typical applications of wedge wire screen tubes in chemical and environmental protection industries 

1. Chemical wastewater treatment 

In electroplating, pharmaceutical, pesticide and other industries, wastewater often contains heavy metals, strong acids and alkalis and organic pollutants. Wedge wire screen tube can be used for:

• Pre-treatment filtration: to remove suspended solids (SS), resin particles, and prevent clogging of subsequent membrane systems .

• Activated carbon adsorption system: as a support cartridge to ensure uniform water distribution in the carbon bed and avoid short flow.

• Acid/alkali regeneration device: in ion exchange system, corrosion-resistant wedge wire screen tube optimizes acid/alkali distribution and prevents resin leakage.

2. Petrochemical and sand prevention filtration 

In the filtration of high viscosity fluids such as wax oil and asphalt, the large opening area of wedge wire screen tubes reduces the pressure drop, while the 316L material resists the corrosion of hydrogen sulfide (H₂S), and is suitable for:

• Oil and gas well sand prevention: prevent sand particles from entering the pipeline and reduce equipment wear.

• Refinery catalyst recovery: filtration precision 0.02mm-1mm, efficient separation of precious metal catalyst.

3. Environmental protection industry (flue gas desulphurization, solid waste treatment) 

• Flue gas desulphurization (FGD) system: acid-resistant sieve pipe is used for limestone slurry filtration to prevent clogging of spray head.

• Sludge dewatering and screening: pre-filtration before centrifuge or belt filter press to improve dewatering efficiency.

How to choose the suitable wedge wire screen tube for acid and alkaline environment?

Why do chemical companies worldwide choose wedge wire screen tubes?

• Reduced operating costs: long life (10+ years) reduces replacement frequency.

• Customization: Support for non-standard sizes (25mm-2400mm diameter) and special welding processes.

• Environmental Compliance: Compliance with ISO 14001 and industry emission standards, contributing to sustainable development.

Conclusion: Get your exclusive filtration solution 

Wedge wire screen tube manufacturer Hebei YUBO Filtration Equipment Co.,Ltd. has senior technical engineers who can provide free technical consultation to customize the optimal sieve tube solution according to your media characteristics (pH, temperature, particle size).For samples or quotes, contact our engineers today to get a high-efficiency filtration solution for your industry!

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