摘要
环冷机组是钢铁烧结生产工艺的重要设备之一,用于冷却经过焙烧和破碎的高温烧结矿,该设备通过支撑在环形轨道上、绕固定回转中心旋转的圆环来通风和冷却散热。传统环冷机在长期的生产实践中,由于结构和功能模式的限制,暴露出一系列诸如能源浪费、环境污染等问题。基于烧结环冷机组的实际生产模式搭建物理模型,设定并记录观测点在整个运行周期的参数变化,分析多种因素对烧结矿冷却效果的影响,在满足企业对矿层冷却需求的情况下筛选出4套高效工况方案,建立有机朗肯循环热力学模型,对各工况点和方案进行发电功率和发电量的预测评估,预计可提升年发电量1100×10^(4) kWh,年节约标准煤3320 tce,年碳减排量9220 t-c,对实际生产具有指导意义。
The circular cooling unit is one of the important equipment in the steel sintering production process.It is used to cool the roasted and crushed high-temperature sinter.The equipment ventilated and cools heat through a circular ring supported on a circular track and rotating around a fixed center of rotation.In the long-term production practice,traditional circular coolers have exposed a series of problems such as energy waste and environmental pollution due to the limitations of structural and functional models.Based on the actual production mode of the sintering ring cooling unit,a physical model was built,parameter changes at the observation points during the entire operation cycle were set and recorded,and the impact of various factors on the sintering cooling effect was analyzed.Four sets of efficient working conditions were screened out while meeting the enterprise's needs for mineral layer cooling were established,and an organic Rankine cycle thermodynamic model was established to predict and evaluate the power generation and power generation at each working condition point and plan.It is expected that the annual power generation will be increased by 1100×10^(4) kWh.Annual standard coal is saved by 3320 tce/a,and annual carbon emission reduction is 9220 t-c/a,which is of guiding significance for actual production.
出处
《科技创新与应用》
2025年第20期94-98,102,共6页
Technology Innovation and Application
关键词
烧结环冷机
物理建模
冷却效率
烟气温度
发电量
sintered circular cooler
physical modeling
cooling efficiency
flue gas temperature
power generation
作者简介
第一作者:王浩锋(1999-),男,硕士。研究方向为余热回收发电;通信作者:张铁臣(1972-),博士,副教授,硕士研究生导师。研究方向为余热回收。
