Stainless Steel Wedge Wire Screen

Stainless steel wedge wire screens are filtration and separation elements manufactured using high-precision processing. Their core structure consists of cross-welded wedge wires (metal wires with trapezoidal or triangular cross-sections) and support wires, forming a mesh structure with uniform gaps. Leveraging the corrosion resistance of stainless steel and the high strength of the wedge wire structure, this product is widely used in water treatment, mining, food processing, and other industrial fields, serving as a key piece of equipment for solid-liquid separation and solid-solid classification. 

I. Core Product Characteristics Unique Structural Design The wedge wires are designed with a "wider top, narrower bottom" cross-section, ensuring a consistent gap width from the surface to the interior. This prevents particle clogging (large particles cannot enter deep into the gaps) and ensures stable filtration accuracy. The support wires are arranged horizontally and firmly connected to the longitudinal wedge wires using resistance welding, laser welding, or other processes. The overall structure is highly rigid and can withstand high working pressure and impact loads. Superior Material Performance: Mainstream materials used include 304 stainless steel (resistant to general corrosion), 316L stainless steel (resistant to acids, alkalis, and seawater corrosion), and duplex stainless steel (high strength + resistance to harsh working conditions). The appropriate material can be selected based on the application environment. Stainless steel not only resists chemical corrosion but also features high temperature resistance (up to 600℃) and aging resistance, resulting in a service life far exceeding that of ordinary carbon steel or plastic screens. Precise and Stable Filtration Accuracy: Gap width can be customized to meet specific needs, ranging from 0.02mm (fine filtration) to 50mm (coarse grading), with an error controlled within ±0.01mm. Compared to woven screens, which are prone to accuracy fluctuations due to uneven wire diameter, the gaps in wedge wire screens are directly formed by machining, resulting in an accuracy decay rate of less than 5% after long-term use. 

II. Core Advantages: Why Choose Stainless Steel Wedge Wire Screens? Strong anti-clogging ability: The "wide on the outside and narrow on the inside" structure of the wedge-shaped wires ensures that particles remain only on the surface. Combined with backwashing and vibration, impurities can be quickly removed, avoiding the "clogging means scrap" problem of traditional screens, reducing maintenance frequency by more than 60%. High strength and durability: The welded mesh structure has no weak points and can withstand working pressures up to 1.5MPa. The stainless steel material is not easily deformed or rusted, and its service life can reach 5-8 years under harsh conditions (such as mine tailings treatment and seawater filtration), which is 3-5 times that of traditional screens. Easy to clean and low maintenance cost: The smooth surface of the wedge-shaped wires does not easily attract impurities and can be quickly maintained through high-pressure water washing and steam cleaning, eliminating the need for frequent replacements and significantly reducing the company's operating costs. 

III. Main Application Scenarios Due to its strong adaptability, stainless steel wedge wire mesh has been applied in multiple industrial fields. Typical applications include: Water Treatment Industry Municipal Wastewater Treatment: As a core filter element in sedimentation tanks and filters, it separates suspended solids and sludge from wastewater; Drinking Water Purification: Removes algae and sediment from raw water, ensuring that the effluent turbidity meets standards; Industrial Wastewater Treatment: Resistant to corrosion from acidic and alkaline wastewater (such as electroplating wastewater and chemical wastewater), it separates heavy metal precipitates. Mining and Metallurgical Industry Ore Screening: After the crushing process, it grades ore particles and screens ore of qualified particle size; Tailings Treatment: Recovers useful minerals from tailings while filtering wastewater, achieving water resource recycling; Metal Powder Filtration: Separates metal dust and coolant generated during the metallurgical process. Food and Pharmaceutical Industries: Food Processing: Filtering pulp and impurities from fruit juices and beer, or separating fiber in starch production; Pharmaceutical Manufacturing: GMP-compliant 316L stainless steel screens used for filtering pharmaceutical solutions and grading raw materials to prevent contamination. Petroleum and Chemical Industries: Crude Oil Filtration: Removing silt and paraffin from crude oil, protecting pipelines and pumps; Chemical Reactors: Serving as a filter layer for reaction media, ensuring the purity of reaction products. 

IV. Key Selection Considerations When selecting stainless steel wedge wire screens, the following four core parameters should be considered in conjunction with the actual working conditions: Gap Width: Determined based on the particle size to be separated. For example, 0.1-1mm is required for water treatment, and 5-20mm for ore screening. 

Material Selection:304 stainless steel is selected for general working conditions, 316L stainless steel for acid/alkali/seawater conditions, and duplex stainless steel (such as 2205) for high-strength requirements. 

Structural Form:Select "flat screen" (for vibrating screens and filters), "cylindrical screen" (for centrifuges and filter cartridges), or "arc screen" (for dewatering equipment) based on equipment compatibility. 

Working Pressure and Temperature: Confirm that the screen's pressure resistance (≤1.5MPa) and temperature resistance (≤600℃) match the working conditions to avoid structural damage due to overload. V. Maintenance and Care Recommendations

Regular Cleaning: Depending on the degree of clogging, rinse the screen surface with high-pressure water (0.8-1.2MPa) every 1-2 weeks. If stubborn impurities are attached, soak in a neutral detergent before cleaning.

Corrosion Protection: Before long-term storage, dry the screen surface with compressed air to prevent residual moisture from causing rust.

Regular Inspection: Check weld points for looseness and gaps for deformation every 3 months. If local damage is found, it can be repaired by welding (only for 304/316L materials).

Avoid Impact: Avoid impacts from hard objects during installation and use to prevent deformation of the wedge wires, which could lead to accuracy failure.