Description

Static Screen for Pulp and Paper Industry – Fiber Recovery & Screen Rejects Dewatering

Product Overview

The DAGYEE Static Screen is a proven solution for pulp and paper mills seeking to recover valuable fiber from process water, dewater screen rejects, and reduce solids loading on downstream treatment systems. With no moving parts and zero energy consumption, it offers the lowest possible operating cost for solids removal in paper mill applications.

Paper mills generate large volumes of white water, clarified water, and effluent containing recoverable fiber. This fiber represents both a lost revenue opportunity and a treatment cost — it must be removed before discharge. The DAGYEE static screen captures this fiber efficiently, allowing mills to return recovered fiber to the process or sell it as a byproduct.

Working Principle

The static screen operates on a simple gravity-based principle with no moving components. Here's how it works:

Uniform Water Distribution – Wastewater enters the screen box and flows over a weir, evenly distributing across the full width of the inclined wedge wire screen.

Solid-Liquid Separation – As water passes through the screen, liquid flows through the narrow gaps between the wedge wires. Suspended solids larger than the slot opening are captured on the screen surface.

Automatic Solids Discharge – Captured solids slide down the inclined screen surface under the force of gravity and the hydraulic push of incoming flow. They discharge continuously from the lower end of the screen without needing a scraper or mechanical conveyor.

Clean Filtrate Collection – The filtered liquid (filtrate) collects in a hopper or trough beneath the screen and flows to the next stage of treatment.

Slot openings are typically available from 0.25mm to 3.0mm, depending on the application and required removal efficiency.

Table 1: 5-Year Total Cost Breakdown

See that? The purchase price is only one-third. The other two-thirds come after you buy the machine.
So the real way to save money isn't just beating down the upfront price. It's reducing the other two-thirds too.
Let me give you an example:
Machine A costs $3,000 upfront, but needs $700 in maintenance every year. Over 5 years, total cost is $6,500.
Machine B costs $4,000 upfront, but only needs $150 in maintenance every year. Over 5 years, total cost is $4,750.

The more expensive one actually saves you money. That's why you need to look at the big picture.

Key Features

Advantages

1. No Energy Costs
Because the static screen has no moving parts and operates by gravity, it consumes zero electricity. For facilities running 24/7, this represents significant annual savings compared to mechanical screens.

2. Virtually Maintenance-Free
With no motors, bearings, or chains to maintain, the static screen requires only periodic visual inspection and occasional cleaning. No lubrication, no belt replacement, no gearbox oil changes.

3. Reliable 24/7 Operation
There are no mechanical components to break down. As long as water flows, the static screen keeps working. This makes it ideal for unattended or remote installations.

4. Self-Cleaning Screen Design
The wedge wire profile creates a continuous shearing action that helps dislodge trapped particles. This self-cleaning effect reduces blinding and maintains consistent hydraulic capacity.

5. Low Installation Cost
With no electrical connections, no control panels, and no moving parts, installation is simple and inexpensive. The unit can be placed over an open channel or flume with minimal civil work.

6. Environmentally Friendly
Zero energy consumption and no chemical additives make the static screen a green technology for solids removal.

7. Handles High Solids Loading
Static screens are particularly effective for applications with high concentrations of fibrous solids — such as paper mill effluent, slaughterhouse wastewater, or textile processing.

Technical Specifications

Applications

The static screen is suitable for a wide range of industries and applications:

How to Size a Static Screen

To select the right static screen for your application, you will need:

1.Flow Rate – Peak and average flow (m³/h or GPM)
2.Solids Loading – Concentration and type of solids (fibrous, granular, etc.)
3.Slot Opening – Based on particle size you need to remove
4.Available Head – Height difference between inlet water level and discharge point
5.Channel Width – If installing in an existing channel

Contact DAGYEE with your site parameters, and we will recommend the optimal screen size and configuration.

Why Paper Mills Choose DAGYEE

1. Paper Industry Experience – DAGYEE engineers understand paper mill processes and challenges

2. Proven Performance – Dozens of static screens installed in pulp and paper mills worldwide

3. Rugged Construction – SS316 standard for paper mill applications

4. Fast ROI – Most installations pay for themselves in 3-12 months

5. Lowest Operating Cost – Zero energy, zero moving parts, minimal maintenance

Maintenance Guidelines

While the static screen requires far less maintenance than mechanical screens, we recommend:

Ordering Information

To request a quote or receive technical drawings, please provide:

• Flow rate (average and peak)
• Required slot opening (mm)
• Channel width or desired screen width
• Available gravity head
• Wastewater type and solids characteristics
• Material preference (SS304 or SS316)

Contact Us

DAGYEE – Reliable Solid-Liquid Separation Solutions

Just tell me:
• What material are you processing?
• How many tons per hour?
• Is the material wet? Corrosive? Abrasive?
• How much space do you have?
I'll help you put together a specification — no unnecessary features, no missing essentials, no wasted money.

Inquiry Us

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