Volm Vacuum Pumps Solve Blackwater Treatment Challenges at Coal Deep-Processing Base
A leading Chinese coal deep-processing facility faced multi-faceted challenges in gasification blackwater treatment, including corrosive media, temperature sensitivity, high-altitude operation (1,100m), and complex vibration conditions. Leveraging 20+ years of industrial vacuum expertise, Volm delivered a customized solution ensuring reliable long-term performance under extreme conditions.
Four Operational Challenges
1.Media Corrosion
• Inlet gas contained trace H₂S/NH₃, forming corrosive solutions when hydrated.
2.Temperature Control
• Required stabilizing exhaust temperature at 40~42°C with 67°C inlet gas.
3.High-Altitude Adaptation
• Outdoor installation at 1,100m elevation demanded stable operation during winter at -20℃.
4.Maintenance Constraints
• Particulate clogging in liquid ring circuits and vibration-induced instrument drift.
Volm’s Customized Solutions
1. Corrosion Defense
• 316L austenitic stainless steel for critical components such as pump body and impellers (aqueous H₂S/NH₃ solutions resistance);
• API 681 compliance: Hydrostatic test chloride ≤50ppm (eliminates stress corrosion).
2. Precision Temperature Control
• Isothermal compression technology: Working fluid absorbs heat, effectively lowering the exhaust temperature.
3. High-Altitude & Cold Adaptation
• Plateau-optimized motors: Optimized winding configuration ensures zero power decay under high-altitude conditions;
• Low-temperature grease (-40°C to 120°C): Enables -20°C cold starts ≤30 seconds.
4. Contamination & Vibration Resistance
• Dual self-cleaning filters (50μm precision) + rotor flowmeters;
• Filled-system level gauges and vibration-proof pressure gauges with snubbers are mounted at vibration-sensitive locations.
Operational Results (18-Month)
| Metric | Performance |
|---|---|
| Corrosion Resistance | ≤0.1 mm/year |
| Temperature Stability | Exhaust: 40~42°C (±1°C) |
| High-Altitude Operation | Motor power decay ≤3% |
| Cold Start Performance | ≤30 seconds at -20°C |
| Contamination Control | ≥99% particle capture |
| Vibration Tolerance | Gauge lifespan >2 years |
| System Reliability | MTBF ≥10,000 hrs |
| Operational Flexibility | Parameter deviation ≤±5% under combined stresses |
