Based on the axial bed depth model of straight rotary kiln proposed by prior researchers,the equation of mean residence time of solids in carbon rotary kiln with variable diameter and turn-down rig was developed.Cold ...Based on the axial bed depth model of straight rotary kiln proposed by prior researchers,the equation of mean residence time of solids in carbon rotary kiln with variable diameter and turn-down rig was developed.Cold experiments were carried out on a laboratory rotary kiln under ambient conditions.The comparison between calculated results and experiment data showed that calculated results of the residence time of solids agreed well with measurements and the prediction error varied in a small range of-15%—+12%.No fitting parameter was necessary.The mass flow rate of solids increased and the mean residence time decreased with increasing kiln rotation speed and kiln slope.The mass flow rate of solids increased and the mean residence time might possibly decrease or increase with increasing dam height at the feed end.展开更多
针对加热炉钢结构在二维设计过程中存在投影关系复杂,难以表达空间结构的问题,以三维技术为核心,通过Visual Basic对Solid Edge进行二次开发.基于Active X Automation技术,采用先绘制布局再添加材料的处理方式,依照模块化设计思想,将整...针对加热炉钢结构在二维设计过程中存在投影关系复杂,难以表达空间结构的问题,以三维技术为核心,通过Visual Basic对Solid Edge进行二次开发.基于Active X Automation技术,采用先绘制布局再添加材料的处理方式,依照模块化设计思想,将整个钢结构分解为多个子结构.使用先独立生成再装配的自底向上设计模式,开发了交互式绘图程序,界面友好,使用方便,实现了Solid Edge环境下的三维参数化设计.有效地提高了设计效率和质量.并根据工程图纸进行实例设计,验证了所提方法的可行性和适用性.展开更多
文摘Based on the axial bed depth model of straight rotary kiln proposed by prior researchers,the equation of mean residence time of solids in carbon rotary kiln with variable diameter and turn-down rig was developed.Cold experiments were carried out on a laboratory rotary kiln under ambient conditions.The comparison between calculated results and experiment data showed that calculated results of the residence time of solids agreed well with measurements and the prediction error varied in a small range of-15%—+12%.No fitting parameter was necessary.The mass flow rate of solids increased and the mean residence time decreased with increasing kiln rotation speed and kiln slope.The mass flow rate of solids increased and the mean residence time might possibly decrease or increase with increasing dam height at the feed end.
