• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal Of The South African Institute Of Mining & Metallurgy >Improved ultrafine coal dewatering using different layering configurations and particle size combinations
【24h】

Improved ultrafine coal dewatering using different layering configurations and particle size combinations

机译：使用不同的分层配置改进超细煤脱水和粒度组合

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Coal fines produced during processing are difficult to dewater and result in a lower quality product and consequent lower value. A South African coal mine experiences severe difficulties with belt filter dewatering operations due to the presence of fines reporting from the thickener underflows. Plant 2 currently handles super-fine particles of size -34 um and has low belt filter efficiency: excessive moisture retention lowers the product quality and strains downstream processing. It was necessary to determine an alternative method for dewatering these fines. Blending of fine material with coarser material was proposed as a solution. The effect of coal particle size and layering during ultrafines belt filter dewatering was evaluated using various blends of the fine Plant 2 material with coarser Plant 1 material. The best layering arrangement of the two materials and its optimum blend required to achieve reduced filter cake moisture content was determined in practise using a vacuum filter to simulate belt filtration. A blend of the two materials gave improved dewatering efficiency for the belt filters compared with that of the Plant 2 material alone. The best layering configuration was with Plant 2 material at the bottom and Plant 1 material on top. The optimum blend for industrial applications comprised 48% fines from Plant 2.
机译：加工过程中产生的煤含量难以脱水，并导致较低的质量产品和随之而来的较低值。南非煤矿因皮带过滤器脱水业务而经历严重困难，由于从增稠剂下排的罚款存在。植物2目前处理大小的超细颗粒-34μm并具有低带滤波器效率：过度保湿降低产品质量和菌株下游加工。有必要确定脱水这些细粒的替代方法。提出了用较粗材料的细材料混合作为溶液。使用具有较粗植物1材料的细植物2材料的各种共混物评价超细带式过滤脱水期间的煤粒径和层状的影响。使用真空滤光器在实践中确定了两种材料的最佳分层布置及其最佳共混物所需的最佳共混物，以模拟带过滤。与单独的植物2材料相比，两种材料的混合物对皮带过滤器进行了改善的脱水效率。最好的分层配置在底部和工厂1材料上有植物2材料。工业应用的最佳混合物包括来自植物2的48％罚款。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号