Publish Time: 2021-07-19 Origin: Site
1. Industry Overview
Industry Trends
Coal-fired power plants worldwide must comply with ultra-low emission standards (e.g., SO₂ ≤35mg/m³), making efficient dewatering and recycling of desulfurization gypsum (CaSO₄·2H₂O) a critical process.
Wet limestone-gypsum desulfurization accounts for over 90% of applications, with byproduct gypsum requiring ≤10% moisture content for reuse in construction or cement industries.
Core Requirements Comparison
Requirement | Belt Vacuum Filter | Disc Cloth Vacuum Filter |
Capacity | Continuous, high-volume (50–200m³/h) | Intermittent, medium-volume (30–100m³/h) |
Moisture Target | ≤10% | ≤10% |
Footprint | Larger (horizontal layout) | Compact (vertical stacked discs) |
Maintenance | Periodic belt replacement | Quick cloth replacement |
2. Product Advantages
Industry Pain Points & Solutions
Pain Point | Belt Vacuum Filter Benefits | Disc Cloth Vacuum Filter Benefits |
Gypsum Clogging | Anti-clog belt + high-pressure washing (auto-cleaned every 2h) | Rapid cloth replacement (<30 minutes) |
High Energy Use | Multi-zone vacuum, 30% lower energy consumption | Low-pressure operation, 40% energy savings |
Corrosion/Wear | 316L stainless steel/rubber-coated components | Full PP disc construction, >8-year lifespan |
Shared Advantages
✅ High Stability: 24/7 operation, adaptable to load fluctuations
✅ Eco-Compliance: Filtrate SS <50mg/L, directly reusable in scrubbers
3. Case Studies
Case 1: Belt Vacuum Filter-Huaneng Yueyang Power Plant Phase
Client Type: State-owned power giant
Model:DU-45 ㎡/3000 Belt Vacuum Filter
Results:
l Moisture: 8.5%
l Belt lifespan: 6 months (vs. industry standard 3 months)
Case 2: Disc Cloth Vacuum Filter – Coastal Power Plant, Indonesia
Special Needs: Corrosion resistance (salt spray) + limited space
Solution: Custom PP discs + vertical design (35% smaller footprint)
Results:
l Energy use: 0.8kWh/ton gypsum (industry avg. 1.2kWh)
l Maintenance: <2 hours/week
5.Selection Guide
Choose Belt Vacuum Filters: For large-scale plants, continuous high-flow.
Choose Disc Cloth Filters: For space-constrained sites, intermittent operation, or highly corrosive environments.
Free Expert Support:
Material suitability testing
Lifecycle cost analysis
3D layout design