| 陈亚利，杨学忠.高温灰渣在斜面冷渣器中的流动分析[J].轻工机械,2014,32(6): |
| 高温灰渣在斜面冷渣器中的流动分析 |
| Study on Flow Characteristic of High Temperature Slag in Slag Cooler |
| |
| DOI：IO. 3969/j. issn. 1005 -2895. 2014. 06. 005 |
| 中文关键词: 冷渣器 灰渣颗粒 颗粒流动程序 离散单元法 数值模拟 临界角 |
| 英文关键词:slag cooler slag particle flow Discrete Element Method( DEM) numerical simulation critical angle |
| 基金项目: |
|
| 摘要点击次数: 1388 |
| 全文下载次数: 1329 |
| 中文摘要: |
| 为了分析工业生产中的高温灰渣在斜面上的流动特性，采用基于离散单元法的颗粒流动程序( PFC2D)，建立料
仓和斜面的仿真模型，首先分析颗粒通过斜面的临界角，然后针对颗粒在不同斜面倾角，进行了颗粒运动的数值模拟，为
下一步分析颗粒传热做准备。通过模拟发现：①颗粒通过斜面的临界角为28。- 29。；②在斜面倾角大于临界角的前提
下，颗粒的堆积厚度随着通过斜面的距离的增大而减小，堆积厚度拟合直线的斜率逐渐增大，在40。之前呈现直线增长
的趋势，400 - 500增长速度逐渐平缓，拟合直线的截距随着倾角的增大，逐渐较小。 |
| 英文摘要: |
| To analyze flow characteristics of high temperature slag on the inclined plane in industrial production, the
procedure of particle flow code ( PFC2D) based on discrete element method ( DEM) was used to build the discrete
element model of the slag cooler and material particle. Firstly, found out material particle critical angle flow on the
inclined plane, then the relationship of different angle of the inclined plane with the thickness of the accumulation of
particles and the surface particle velocity to preparation for the material particle heat transferred. It is found to have some
advantages:①Material particle critical angle was 280 - 2go.(②On condition that the inclined plane angle was larger
than the critical angle, the thickness particles decreased with the inclined plane angle. In addition. the fitting line slope
of the thickness increased with the inclined plane angle. It has grown linearly before 400 and smoothly 400 t0 500. the
fitting line intercept increased with the inclined plane angle. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
