Scholarlink

Abstract <p>The article exhibits possibility of efficient treatment of coal siftings 0–13 mm in size as a case-study of the combined dry and wet separation of coking low-caking, low-metamorphized coal. On the basis of estimation of processing behavior of the initial material, as well as the sieve, fraction and mineral analyses of different size grades of coal, several process flow sheets are developed. These process flow sheets include dry pneumatic separation of coal size grades of 1–13 mm, wet spiral separation of coal slime 0.2–3.0 mm in size, as well as flotation and oil agglomeration to separate coal and rock particles in fine coal slime. The proposed process flow sheets allow producing concentrates with the ash content from 15.3 to 9.9% at the mineral-free matter recovery to 90% and the calorific value over 7000 kcal/kg.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Combining Dry and Wet Separation Methods toward Improved Quality of Coal Siftings

  • 期刊论文

  • 发表日期：

    2025年12月1日

查看全文
  • Yu. F. Patrakov,
  • S. A. Semenova,
  • A. A. Stepanenko,
  • M. S. Klein,
  • T. E. Vakhonina

摘要

Abstract

The article exhibits possibility of efficient treatment of coal siftings 0–13 mm in size as a case-study of the combined dry and wet separation of coking low-caking, low-metamorphized coal. On the basis of estimation of processing behavior of the initial material, as well as the sieve, fraction and mineral analyses of different size grades of coal, several process flow sheets are developed. These process flow sheets include dry pneumatic separation of coal size grades of 1–13 mm, wet spiral separation of coal slime 0.2–3.0 mm in size, as well as flotation and oil agglomeration to separate coal and rock particles in fine coal slime. The proposed process flow sheets allow producing concentrates with the ash content from 15.3 to 9.9% at the mineral-free matter recovery to 90% and the calorific value over 7000 kcal/kg.