High-Efficiency Vertical Screw Extruder - 30% Energy Saving for Tunnel Kiln Brick Plants
Equipment Introduction
This series of machines is manufactured using advanced European technologies, specifically designed for the extrusion molding of high-end ceramic materials, cement fiber products, and semi-rigid plastic viscous materials. The equipment's materials, technical structure, electrical systems, and operating systems are all produced in accordance with European standards.
Vertical Double Helix Vacuum Extruder is a core forming equipment in clay sintered brick production, mainly used to extrude homogenized clay materials into brick blanks with specific cross-sectional shapes.
- Vertical double helix structure: Two screw shafts arranged vertically, rotating in opposite or same directions to apply continuous extrusion and shearing forces on materials, ensuring uniform mixing and air discharge.
- Vacuum system: A vacuum chamber removes air bubbles from materials (typically with a vacuum degree of -0.08MPa to -0.095MPa) to improve brick blank density.
- Mold components: Replaceable extrusion molds determine brick blank shapes (standard bricks, perforated bricks, hollow bricks) for different product requirements.
Key Features
- Efficient double-helix mixing: Shearing action crushes agglomerates and enhances plasticity, especially for high-viscosity clay.
- High-vacuum forming: Increases brick blank density by 10%-15% and reduces shrinkage deformation after sintering.
- Automated control: PLC system enables real-time adjustment of screw speed, vacuum degree, and extrusion pressure.
- Multi-functional mold adaptation: Quick mold replacement (≤30 minutes) for different brick types.
- Large-capacity design: 80,000-150,000 bricks per shift (8 hours), with large models reaching 200,000 bricks.
Main Technical Parameters
| Model |
Production capacity (t/h) |
Maximum extrusion pressure (MPa) |
Installed power (kW) |
Weight (t) |
Dimension (mm) |
| VP35L |
7 |
3.5 |
55+15 |
10 |
5000*1800*3200 |
| VP40L |
10 |
3.5 |
75+18.5 |
12 |
5000*2000*3200 |
| VP56/45L |
15 |
4.5 |
90+30 |
14 |
5700*2000*3500 |
| VP35/35-2L |
10-25 |
3.0 |
75+30 |
16 |
4500*2000*4500 |
| VP40/40-2L |
15-30 |
3.0 |
110+30 |
20 |
5000*2500*5000 |
Core Forming Process
- Transforms mixed materials into uniform brick blanks for drying and sintering
- Improves product quality: Vacuum extrusion eliminates air holes, increasing brick strength (MU10-MU25)
- Connects with upstream and downstream equipment for continuous production
- Reduces material waste with precise extrusion control (≥95% utilization rate)
Technical and Economic Advantages
- Technical: 30% higher extrusion pressure than single-helix designs, stable vacuum control reduces porosity by 15%-20%
- Economic: 60% operator reduction, 12%-18% lower energy consumption per 10,000 bricks
- Maintenance: Wear-resistant alloy screw shafts (8,000-10,000 hour lifespan), automatic dust removal extends maintenance to 3,000 hour intervals