Description

Precision Engineered Hydro Pulper Screen Plates: Maximize Efficiency & Pulp Quality

Product Overview

The Hydro Pulper Screen Plate is a critical, high-wear component designed for the demanding environment of modern pulping operations. Positioned at the bottom of a hydro pulper, this perforated plate plays a vital role in the initial separation of accepts (usable fiber slurry) from rejects (oversized material, contaminants, and unbroken flakes). Our Hydro Pulper Screen Plates are precision-engineered to deliver exceptional performance, maximizing pulping efficiency, improving pulp quality, and extending operational lifespan in virgin pulp and waste paper processing facilities worldwide.

Key Features

• Premium Material Construction:
  • High-Grade Stainless Steel (SS304, SS316, SS316L): Offers superior corrosion resistance, crucial for environments handling various chemicals and slurries.
  • Hardened Alloy Steel: Provides exceptional abrasion resistance and strength for heavy-duty applications, especially where tough contaminants are present.
  • Special Wear-Resistant Coatings: Optional coatings available for extended life in extreme abrasive conditions.
• Precision Perforation:
  • Optimized Hole/Slot Design: Available with round holes, slotted holes, or conical holes, precisely drilled or milled to ensure optimal open area and efficient screening.
  • Consistent Hole Diameter/Slot Width: Guarantees uniform pulp flow and effective separation of contaminants without excessive fiber loss.
  • Smooth Edge Finish: Minimized burrs and sharp edges prevent fiber hang-ups and promote better flow.
• Robust & Durable Construction:
  • Optimized Thickness: Engineered for maximum rigidity and resistance to deformation under high-stress pulping conditions.
  • Flatness Tolerance: Manufactured to tight flatness specifications to ensure proper sealing and uniform gap with the rotor.
  • Integrated Support Structure: Designed to withstand continuous impact and shear forces from the pulper rotor and incoming material.
• Enhanced Surface Treatment:
  • Polished/Deburred Surfaces: Reduces friction, minimizes fiber entanglement, and resists the build-up of sticky contaminants, leading to less clogging.
  • Optional Electropolishing: For ultra-smooth surfaces in critical applications requiring exceptional cleanliness and flow.
• Tailored for Compatibility:
  • Custom Dimensions: Available in a wide range of diameters and segment configurations to fit various pulper models (e.g., Hydrapulpers, High-Consistency Pulpers, Low-Consistency Pulpers).
  • Precision Mounting Holes: Drilled to match OEM specifications for easy and secure installation.

Technical Specifications

• Material Options:
  • Stainless Steel: SS304, SS316, SS316L (EN 1.4301, 1.4401, 1.4404)
  • Hardened Carbon Steel: Manganese Steel, Chromium Steel alloys
  • Custom alloys available upon request
• Plate Thickness: 6 mm to 25 mm (0.24" to 1")
• Hole/Slot Dimensions:
  • Round Holes: 2 mm to 20 mm diameter (0.08" to 0.8")
  • Slotted Holes: 0.8 mm to 3 mm width, up to 30 mm length (0.03" to 0.12" width, up to 1.2" length)
  • Conical Holes: Tapered design for anti-clogging.
• Hole Pattern: Staggered (triangular pitch), Straight (square pitch)
• Open Area: 15% to 45% (dependent on hole size and pattern)
• Overall Dimensions: Custom manufactured to specific pulper model requirements (e.g., diameter up to 4000mm, segment sizes).
• Surface Finish: Ra value typically < 3.2 µm, polished, deburred.
• Hardness: Varies by material, up to 60 HRC for hardened alloys.
• Manufacturing Tolerance: Conforms to ISO standards for plate dimensions and perforation accuracy.

Key Benefits

• Increased Pulping Efficiency: Optimized hole design and open area promote faster furnish breakdown and efficient separation, leading to higher throughput.
• Superior Pulp Quality: Effectively screens out contaminants, ensuring a cleaner, more consistent pulp slurry for subsequent processing stages.
• Extended Service Life: High-grade, wear-resistant materials and robust construction significantly reduce the frequency of replacements, lowering maintenance costs and downtime.
• Reduced Clogging & Fouling: Smooth surfaces and precise perforations minimize fiber hang-ups and the accumulation of sticky materials, ensuring continuous operation.
• Lower Operating Costs: Fewer shutdowns for plate changes and less energy wasted on inefficient screening contribute to overall operational savings.
• Optimized Energy Consumption: Efficient flow dynamics through the screen plate can reduce the energy required for pulping.
• Custom Fit for Peak Performance: Tailored dimensions and hole configurations ensure perfect integration with your existing pulper, maximizing its potential.

Applications

Our Hydro Pulper Screen Plates are ideal for use in:

• Waste Paper Recycling:
  • Old Corrugated Containers (OCC) pulping
  • Mixed Waste Paper pulping
  • Deinking processes
  • Aseptic packaging waste processing
• Virgin Pulp Mills:
  • Chemical pulp processing (Kraft, Sulfite)
  • Mechanical pulp processing (TMP, CTMP, GW)
• Any pulping operation requiring efficient separation of fiber slurry from oversized materials and contaminants.

Why Choose Our Hydro Pulper Screen Plates?

• Uncompromising Quality: Manufactured using only the highest quality raw materials and state-of-the-art precision machining.
• Engineering Expertise: Backed by years of experience in pulp and paper machinery components, ensuring optimal design for your specific needs.
• Customization Capability: We work closely with our clients to provide bespoke solutions that perfectly match their pulper specifications and operational demands.
• Reliability & Performance: Our plates are designed for maximum durability and consistent, high-level performance, even in the most challenging conditions.
• Competitive Pricing & Global Service: Offering a cost-effective solution without compromising on quality, supported by reliable global delivery.