A sieve bend screen is a curved, gravity-fed filtration panel designed to separate solids from liquids without the use of moving parts or mechanical components. Also called a DSM static screen, this unit features a stainless steel frame with a curved wedge wire surface that allows water or liquid to pass through while effectively capturing and removing suspended solids.
The combination of angled flow, curved geometry, and precise wedge wire slot openings ensures highly efficient screening, even for fine particles. This makes it an ideal choice for pre-treatment stages in a wide range of wastewater applications.
The Role of Wedge Wire in Static Screens
At the core of the sieve bend’s performance is wedge wire - a specially shaped stainless steel profile wire that forms the screen’s filtration surface. Unlike traditional mesh or perforated plates, wedge wire offers several key advantages:
• Non-clogging Design
• High Strength
• Precision Filtration
• Easy Cleaning
• Long Service Life
Applications in Wastewater Treatment
The sieve bend static screen is a reliable filtration solution for many sectors, including:
1. Food and Beverage Industry
Used in dairy, brewery, and meat processing plants for removing fibrous solids and suspended particles from effluent streams.
2. Pulp and Paper
In paper mills, wedge wire static screens are used to screen out pulp fibers before wastewater moves to biological treatment stages.
3. Textile and Dyeing
Textile manufacturers use DSM screens to remove lint, threads, and chemical sludge during effluent treatment.
4. Sludge Dewatering
In municipal and industrial WWTPs, sieve bend screens act as a pre-dewatering system, reducing the load on centrifuges and belt presses.
5. Sugar and Chemical Processing
Used for separating sugar juice from bagasse fibers or clarifying chemical waste with high solid content.
Technical Features and Design Options
Wedge wire DSM screens can be customized to meet specific flow rates, solid loads, and industry standards. Key specifications include:
• Slot Sizes: Available from 0.25 mm to 2 mm
• Screen Width: Typically ranges from 300 mm to 1500 mm or more
• Arc Radius: Adjustable curvature for flow optimization
• Material Options: 304, 316L, or duplex stainless steel
• Mounting Style: Fixed, frame-mounted, or drop-in designs for easy integration
These options allow engineers and plant designers to tailor sieve bend screens precisely to process needs.
Benefits of Wedge Wire Sieve Bend Screens
Professionals across industries choose wedge wire static screens because they offer practical and long-lasting performance:
• No Power Required: Operates entirely by gravity, lowering energy costs
• Minimal Maintenance: No moving parts, self-cleaning action
• Compact Footprint: Ideal for space-constrained facilities
• Scalable Design: Easily incorporated into small or large flow systems
• Cost-Effective: Long lifespan and reduced operational overhead
When selected and sized correctly, sieve bend screens can operate for years with minimal wear and high separation efficiency.
If designing a new system or upgrading an existing one, integrating a high-quality DSM screen is one of the most efficient ways to enhance your process. From municipal wastewater plants to industrial effluent treatment, the value of wedge wire technology is clear: reliable filtration, reduced downtime, and long-term savings.
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E-mail: sales@uboscreen.com
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Article Source: www.wedgewire-filter.com
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