Energy-saving VPSA Oxygen Generator for Gold Mine Leaching and Sparging
The VPSA Oxygen Generator extracts oxygen from air on a large scale using vacuum pressure swing adsorption technology. It utilizes molecular sieves to preferentially adsorb nitrogen, completing adsorption near atmospheric pressure followed by vacuum desorption for regeneration. This automated equipment reliably produces oxygen with 90%-95% purity, serving industries including metallurgy, chemicals, environmental protection, and healthcare.
Global Customer References
| No. |
Plant Model |
Capacity (Nm³/h) |
Purity (%) |
Application |
Country |
| 1 | VPSA-300/93 | 300 | 93 | Chemical | Malysia |
| 2 | VPSA-2600/90 | 2600 | 90 | Non-ferrous | Brazil |
| 3 | VPSA-100000/85 | 10000 | 85 | Non-ferrous | Indonesia |
| 4 | VPSA-12000/93 | 12000 | 93 | Non-ferrous | Indonesia |
| 5 | VPSA-20000/85 | 20000 | 85 | Non-ferrous | Indonesia |
| 6 | VPSA-40000/85 | 40000 | 85 | Non-ferrous | Indonesia |
| 7 | VPSA-13400/85 | 13400 | 85 | Non-ferrous | Indonesia |
| 8 | VPSA-5000/93 | 5000 | 93 | Steel | India |
| 9 | VPSA-3125/80 | 3125 | 80 | Cooper | Congo |
| 10 | VPSA-8400/90 | 8400 | 90 | Gold | Tajikistan |
| 11 | VPSA-2400/90 | 2400 | 90 | Waste Combustion | Thailand |
| 12 | VPSA-100/93 | 100 | 93 | Water Treatment | Italie |
| 13 | VPSA-17490/90 | 17490 | 90 | Steel | India |
| 14 | VPSA-17850/90 | 17850 | 90 | Steel | India |
| 15 | VPSA-12000/90 | 12000 | 90 | Steel | India |
| 16 | VPSA-6000/90 | 6000 | 90 | Steel | India |
| 17 | VPSA-5000/90 | 5000 | 90 | Cement | Korea |
| 18 | VPSA-15000/92 | 15000 | 92 | Copper | Russia |
| 19 | VPSA-6000/90 | 6000 | 90 | Steel | India |
| 20 | VPSA-11666/90 | 11666 | 90 | Steel | India |
Startup and Parameter Setting Procedures
The intelligent design of VPSA Oxygen Generators simplifies startup while requiring strict operational adherence. Pre-startup inspection includes verifying stable power supply, correct pipeline valve positions (inlet/outlet valves open, bypass closed), and proper blower/vacuum pump lubricant levels.
After powering the main switch, the PLC control system performs a 30-60 second self-check of sensors, valves, and motors. Operators then set parameters via touchscreen: oxygen flow rate (e.g., 50Nm³/h), target purity (typically 93%), and pressure (0.2MPa for pipeline supply). System startup initiates the blower first, followed by the vacuum pump at 0.1MPa pressure, beginning the adsorption-desorption cycle.
The 15-30 minute warm-up period gradually increases oxygen purity from atmospheric 21% to target levels. Operators must monitor control panel data; if purity doesn't reach set values within 30 minutes, inspect molecular sieve status or air pretreatment.
Daily Operation and Shutdown Guidelines
Routine operation requires 2-4 hour inspections monitoring oxygen purity (±1% deviation), system pressure (0.15-0.25MPa), and equipment temperature (motors ≤85°C, adsorption towers ≤60°C). Process adjustments should not exceed 10% of rated flow per change to protect molecular sieves.
Normal shutdown involves reducing flow to 50% before system shutdown, allowing 60-90 seconds for cycle completion. Emergency stops immediately cut power and close main valves; subsequent restarts require full system inspection.
Operational Advantages
- Fast startup: 15-30 minutes versus 4-6 hours for cryogenic systems
- Low maintenance: Annual costs at 2-3% of equipment investment
- Environmental adaptability: Operates from -10°C to 45°C at altitudes up to 3000m
- Automated adjustment: Maintains stable output in varying conditions
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