1. Core Technological Breakthrough
This utility model introduces a continuously rotating filtration mechanism that integrates automatic mesh cleaning, achieving 92-95% suspended solids (SS) removal efficiency for particles >200μm. The circular isolation fence design enables simultaneous filtration and cleaning cycles, overcoming traditional static filter clogging issues.
2. System Architecture & Component Specifications
2.1 Structural Configuration
Circular Isolation Fence Assembly
Diameter: 1.2-3.6m (customizable)
Rotation speed: 0.5-2rpm (variable frequency control)
Material: 316L stainless steel frame + PP mesh
Filter Mesh Plate
| Parameter | Specification |
|---|---|
| Mesh Size | 50-500μm (ISO 9044) |
| Open Area Ratio | ≥35% |
| Tensile Strength | 120-150N/cm² |
2.2 Drive Mechanism
Dual motor system (main + backup)
Torque capacity: 150-300Nm
IP68 waterproof rating
2.3 Spray Cleaning System
Nozzle type: Full cone (Spraying Systems 1/4GG-SS)
Operating pressure: 2-4 bar
Flow rate: 5-15m³/h per meter length
3. Operational Workflow
Phase 1: Continuous Filtration
Wastewater enters tangential inlet
Centrifugal force drives particle separation
Clean water exits through central outlet
Phase 2: Automatic Cleaning
1. Rotary fence positions dirty mesh section under sprayers
2. High-pressure jets (50° impact angle) remove debris
3. Washed solids fall into sludge hopper
4. Clean mesh re-enters filtration cycle
4. Performance Advantages
4.1 Efficiency Metrics
| Parameter | Conventional System | This Innovation | Improvement |
|---|---|---|---|
| SS Removal (>200μm) | 80-85% | 92-95% | +12% |
| Cleaning Water Usage | 8-10m³/h·m | 3-5m³/h·m | -60% |
| Maintenance Interval | Weekly | Quarterly | +400% |
4.2 Energy Optimization
Power consumption: 0.8-1.2kW per meter diameter
Smart control system reduces 30% energy use during low-flow periods
5. Installation & Maintenance Protocol
5.1 Pre-Installation Requirements
Tank diameter tolerance: ±15mm
Inlet/outlet elevation difference: ≥300mm
Foundation load capacity: ≥5t/m²
5.2 Commissioning Steps
Laser-align rotational axis (≤0.5mm runout)
Program PLC control parameters:
Max torque limit: 80% rated value
Emergency stop threshold: 110% rated current
Test cleaning cycle with simulated load
5.3 Preventive Maintenance
Monthly checklist:
Grease bearings (NLGI #2 lithium complex)
Inspect mesh integrity (UV degradation test)
Calibrate spray nozzle angles
6. Industrial Application Cases
6.1 Municipal Wastewater Plant
Location: Berlin Waterworks
Results:
Reduced screen replacement cost by €45,000/year
Increased throughput by 22%
6.2 Food Processing Wastewater
Challenge: High fat content causing mesh clogging
Solution:
Integrated hot water spray (60-70°C)
PTFE-coated mesh for anti-adhesion
7. Technical Q&A
Q1: Maximum handling capacity?
A: 1500m³/h per unit (3.6m diameter configuration)
Q2: Suitable for seawater applications?
A: Requires super duplex stainless steel upgrade (EN 1.4410)
Q3: Noise level during operation?
A: ≤65dB(A) at 1m distance (ISO 4871 compliant)