Scholarlink

This study systematically investigates the impact of iron ore fines moisture, bentonite propertiesProperties, and pelletizing operational parameters on green pellet quality and associated energy consumption in iron ore pelletizing through experimental and industrial practice. Key findings reveal: (1) Inherent moisture in ore fines (~8.0%) outperforms external water addition, significantly enhancing green pellet drop strengthStrength (by 4–6 drops/0.5 m) and reducing bentonite dosage by 0.3–0.5%. (2) Bentonite water absorption must be optimized; high absorption (> 500%) elevates pellet moisture (> 9.6%), causing plastic deformation during sinteringSintering and increased energy consumption. (3) Mechanical force can partially substitute wetting force: Increasing disc rotation speed (5.8 → 7.3 rpm) maintains pellet strengthStrength while reducing water spray, lowering mixture moisture (8.6 → 8.1%) and green pellet moisture (9.0 → 8.6%). (4) An intelligent control system centered on core water flow regulation was developed, integrating particle-size feedback and dynamic PID algorithms for real-time moisture optimization. This research provides actionable pathways for quality improvement and energy reductionReduction in pelletizing operations.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Optimization of Moisture Control on Green Pellet Performance and Its Intelligent Control Practice in Iron Ore Pelletizing

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Dawei Sun,
  • Guangwei Wang,
  • Shengli Wu,
  • Yunqing Tian,
  • Jian Chen,
  • Ming Li,
  • Ruiqing Qian

摘要

This study systematically investigates the impact of iron ore fines moisture, bentonite propertiesProperties, and pelletizing operational parameters on green pellet quality and associated energy consumption in iron ore pelletizing through experimental and industrial practice. Key findings reveal: (1) Inherent moisture in ore fines (~8.0%) outperforms external water addition, significantly enhancing green pellet drop strengthStrength (by 4–6 drops/0.5 m) and reducing bentonite dosage by 0.3–0.5%. (2) Bentonite water absorption must be optimized; high absorption (> 500%) elevates pellet moisture (> 9.6%), causing plastic deformation during sinteringSintering and increased energy consumption. (3) Mechanical force can partially substitute wetting force: Increasing disc rotation speed (5.8 → 7.3 rpm) maintains pellet strengthStrength while reducing water spray, lowering mixture moisture (8.6 → 8.1%) and green pellet moisture (9.0 → 8.6%). (4) An intelligent control system centered on core water flow regulation was developed, integrating particle-size feedback and dynamic PID algorithms for real-time moisture optimization. This research provides actionable pathways for quality improvement and energy reductionReduction in pelletizing operations.