摘要
基于废气温度的烧结终点预报、调节方法预报准确性差、调节震荡性高,严重影响余热发电指标。研究各反应带料层厚度及垂直烧结速度的综合作用效果与反应带触底映像位置及长度的一一对应关系,建立基于烧结反应带触底映像位置及长度的烧结终点预报模型。新模型修正了现有预报模型关于烧结终点定义存在的根本性错误,采用反应带触底映像长度作为烧结终点预报指针,提出全程参与、分区预报、分级校正、补偿调节的烧结终点预报及自动调节新方法,并建立相应的烧结终点预报及调节动力决定模型。新模型采用数值模拟与实体数据关联相结合的方法面向生产实用,具有较高的可操作性。
The waste heat power generation indexes were affected seriously due to poor accuracy in sintering BTP prediction and poor adjustment method prediction of waste gas temperature and high adjustment concussion （fluctuation）. The comprehen- sive action effect of material bed depth of each zone and vertical sintering speed and the one-to-one corresponding relation be- tween position and length of bottom images of reaction zones were studied, and the BTP prediction model based on the length and position of bottom images of sintering reaction zone was established. The fundamental error of existing prediction model about BTP＇ s definition was corrected in the new model, the bottom image length of reaction zone was adopted as the BTP prediction in- dicator,the BTP prediction and new automatic adjustment methods such as participation in the whole process, forecast in different zones, classification and correction and compensation regulation were put forward, and the corresponding BTP prediction model and dynamic determination model of adjustment were established. The new model was based on numerical simulation in combina- tion with entity data correlation ,which is suitable for practical production and is of high maneuverability.
出处
《烧结球团》
北大核心
2016年第6期11-15,52,共6页
Sintering and Pelletizing
基金
国家重点研发计划课题资助项目(2016YFB0601403)
关键词
烧结
终点预报
垂直烧结速度
反应带触底映像
sintering
burn through point prediction
vertical sintering speed
bottom image of reaction zone
