中国钼业2024，Vol.48Issue(5)：57-64,8.DOI:10.13384/j.cnki.cmi.1006-2602.2024.05.011
基于CFD-DPM模型的高浓度矿浆输送90°弯管冲蚀磨损特性研究
Erosion and Wear Characteristics of High-Concentration Slurry Conveying 90° Elbow Pipe Based on CFD-DPM Model
卜显忠 1武栋平 1何川 2李九洲 2李新宏1
作者信息
- 1. 西安建筑科技大学资源工程学院,陕西 西安 710055
- 2. 金堆城钼业股份有限公司,陕西 西安 710077
- 折叠
摘要
Abstract
In slurry pipelines with complex working conditions,the main cause of pipeline failure is erosion and wear.Erosion in pipelines occurs mainly at locations where the flow direction or structure changes such as typical elbows,reducers.This article is based on the CFD-DPM coupling model to simulate and study the effects of solid particle size,slurry flow rate,and slurry concentration on the erosion and wear of a 90°bend pipe in a slurry conve-ying pipeline of a certain beneficiation plant under complex operating conditions in liquid-solid two-phase flow.The results showed that the erosion wear of the bent pipe was the most severe,and the erosion wear rate at the 90°bend was linearly related to the slurry concentration;when the flow rate reaches 5 m/s,the erosion and wear rate at the 90° bend changes significantly;when the particle size is in the range of 0.037 4～0.075 0 mm,there is no signifi-cant change in the erosion wear rate at the 90° bend,while the erosion wear rate at the 90° bend changes signifi-cantly when the particle size reaches 0.150 mm.This paper can effectively evaluate the erosion wear area and wear rate of slurry transportation pipelines,and provide a technical basis for pipeline safety operation and maintenance and life prediction.关键词
矿浆/数值模拟/弯管/冲蚀磨损Key words
pulp/numerical simulation/elbow/erosion and wear分类
交通工程引用本文复制引用
卜显忠,武栋平,何川,李九洲,李新宏..基于CFD-DPM模型的高浓度矿浆输送90°弯管冲蚀磨损特性研究[J].中国钼业,2024,48(5):57-64,8.
