立式搅拌磨设计简化实验室试验的开发与验证

IF 2.6 4区 材料科学 Q3 ENGINEERING, CHEMICAL
M. G. Bergerman, H. D. Júnior
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引用次数: 1

摘要

在过去的几十年里,由于对更细的矿石磨矿的需求不断增长,立式搅拌磨矿机在采矿业中的使用显著增加。与传统的管状磨相比,该设备被认为在精细研磨操作中提供更高的能源效率。立式搅拌磨的设计方法包括操作经验、中试和台架试验。一个重要的问题是,在标准的8“×10”罐中进行的实验室规模测试需要至少10-20公斤的材料,具体取决于矿石密度,这在许多情况下是不可用的,特别是在绿地项目的早期阶段。对于浮选精矿的再磨,需要进行多次实验规模的浮选试验来生成这样的样品。本文描述了一种简化的实验室罐磨试验的开发和验证,该试验使用6“×8”罐,该罐小于8“×10”罐,后者通常用于标准试验,所需质量约为标准试验所需质量的十分之一。与标准程序相比,所提出的测试结果相似。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development and Validation of a Simplified Laboratory Test to Design Vertical Stirred Mills
The use of vertical stirred mills in the mining industry has increased remarkably over the past few decades as a result of the growing demand for finer ore grinding. This equipment is recognized to deliver higher energy efficiency in fine grinding operations when compared to conventional tubular mills. Methods of designing vertical stirred mills involve operational experience, pilot plant tests and bench tests. An important issue is that the laboratory-scale test, conducted in the standard 8"×10" jar, requires at least 10–20 kg of material, depending on ore density, which is not available in many cases, particularly in the early stages of greenfield projects. For regrinding of flotation concentrates, several bench scale flotation tests are required to generate such a sample. The paper describes the development and validation with six different ore samples of a simplified laboratory jar mill test using a 6"×8" jar, which is smaller than the 8"×10" size, the latter commonly used which requires about one-tenth of the mass required in the standard test. The proposed test indicated similar results as compared to the standard procedure.
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来源期刊
KONA Powder and Particle Journal
KONA Powder and Particle Journal 工程技术-材料科学:综合
CiteScore
8.40
自引率
4.90%
发文量
35
审稿时长
>12 weeks
期刊介绍: KONA publishes papers in the broad field of powder science and technology, ranging from fundamental principles to practical applications. Papers describing technological experience and critical reviews of existing knowledge in special areas are also welcome.
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