Coal characteristics and extension plan of Xiaoyugou coal preparation plant
CHEN Jun
Abstract：In order to improve handing capacity of Xiaoyugou coal preparation plant,taking raw coal as research objects,the screen analy-sis and float-and-sink analysis were conducted,then the quality and quantity of products were compared.The main equipments and specif-ic extension plan were determined based on the raw coal properties.The results showed that,the slack coal which accounted for 65% a-mong raw coal was separated by two-product dense medium cyclone.The yield of tailings was 40%.The handing capacity of Xiaoyugou coal preparation plant was increased from 3.80 Mt/a to 5.00 Mt/a by extending the main separation building,pressure filtration and con-centration building,transforming some devices in the main separation building,adding slack coal separation system.After transformation, the system was adaptable to a wide range of lump coal and slack coal.The medium system for lump coal and slack coal were completely in-dependent,so the separation density,ash of products and calorific value of products could be controlled flexibly.The moisture of lump clean coal and slack clean coal decreased by 1%,the medium consumption reduced by 0.20 kg/t.
Keywords：extensioncoal quality characteristicslack raw coalslack gangue
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 29-31 )