Parallel-Flow Regenerative Shaft Kiln And Method For Calcining Carbonate Rock
Patent No. EP4182281 (titled "Parallel-Flow Regenerative Shaft Kiln And Method For Calcining Carbonate Rock") was filed by Maerz Ofenbau on Jul 7, 2021. The application was issued on Jun 12, 2024.
Patent Summary
Direct current countercurrent regenerative shaft furnace for burning and cooling carbonate rocks, featuring a novel switching mechanism between combustion and regeneration modes. The furnace employs a high-pressure fan system that can operate at pressures up to 500 mbar, with the fan speed adjusted during switching between combustion and regeneration. The system maintains operational reliability even during switching by employing a pressure-volume characteristic curve optimized for the fan's operation. This allows efficient compression of process gases while maintaining furnace performance during switching between combustion and regeneration modes.
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Date
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EP4182281
- Application Number
- EP21748796A
- Filing Date
- Jul 7, 2021
- Status
- Granted And Under Opposition
- May 10, 2024
- Publication Date
- Jun 12, 2024
- External Links
- Slate, Register , Google Patents