Influence of quartz particles on wear in vertical roller mills. Part I: Quartz concentration

被引：13

作者：

Jensen, Lucas R. D. ^{[1
]}

Friis, Henrik ^{[4
]}

Fundal, Erling ^{[2
]}

Moller, Per ^{[3
]}

Brockhoff, Per B. ^{[5
]}

Jespersen, Mads ^{[1
]}

机构：

[1] FLSmidth AS, DK-2500 Valby, Denmark

[2] Fundal Consult, DK-4140 Borup, Denmark

[3] Tech Univ Denmark, DK-2800 Lyngby, Denmark

[4] Aarhus Univ, Dept Earth Sci, DK-8000 Aarhus C, Denmark

[5] Tech Univ Denmark, DK-2800 Lyngby, Denmark

来源：

MINERALS ENGINEERING | 2010年 / 23卷 / 05期

关键词：

Comminution; Limestones; Particle size; Wear; Vertical roller mills; Quartz; Wear mechanisms;

D O I：

10.1016/j.mineng.2009.11.014

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The standard closed circuit comminution process commonly employed in industrial vertical roller mills has been analyzed to determine the influence of typical abrasive minerals on wear rates. With the main focus on raw mixes used in cement plants, synthetic mixtures imitating were prepared. Using statistical planning, a total of 10 tests were carried out with two different limestones and one type of quartz sand. The size distributions were kept constant and only the mixing ratios were varied. It appears from the investigation that mixtures consisting of minerals with different grindabilities result in an increased concentration of abrasive particles in the grinding bed (R(2) > 0.99). The present study shows that the quartz concentration in the grinding bed is determining the wear rate. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：390 / 398

页数：9

共 9 条

[1]

[Anonymous], 1986, Abrasion and Erosion

[2]

[Anonymous], 1992, TRIBOLOGY FRICTION W

[3]

*BS ISO, 2006, 21988 BS ISO

[4]

DAMTOFT JS, 2009, 6 INT VDZ C PROC TEC