弧形筛超细条筛板在粗煤泥分级中的应用
杨永亮^1，2，3
（1. 中煤科工集团唐山研究院有限公司，河北 唐山 063012；2. 唐山国选精煤有限责任公司，河北 唐山 063012；3. 河北省煤炭
洗选工程技术研究中心，河北 唐山 063012）
摘要： 为解决山西陆海工贸有限公司选煤厂振动弧形筛脱泥效果差，筛板阻尼性不好，筛上粗精煤灰分偏高，造成粗
精煤灰分影响总精煤灰分，从而影响精煤产率的问题，根据现有工艺，采用超细条弧形筛板，提高弧形筛板的开孔率，增
强筛板的阻尼效果，改善细颗粒煤泥的透筛效果，从而达到了降低粗精煤灰分、提高精煤产率、增加企业经济效益的目的。
关键词： 弧形筛；粗煤泥；分级脱水；超细筛条；开孔率；精煤灰分；精煤产率
中图分类号： TD94     文献标识码： A     文章编号： 2095-0802-(2021)07-0214-03
Application of Superfine Bar Sieve Bend on Sieve Bend in Separation of Coarse Slime
YANG Yongliang^1，2，3
(1. Tangshan Research Institute Co., Ltd., China Coal Technology & Engineering Group, Tangshan 063012, Hebei, China;
2. Tangshan Guoxuan Clean Coal Co., Ltd., Tangshan 063012, Hebei, China; 3. Coal Washing Engineering & Technology
Research Center of Hebei Province, Tangshan 063012, Hebei, China)
Abstract: The vibrating sieve bend of Coal Preparation Plant of Shanxi Luhai Industry and Trade Co., Ltd. has poor effect of mud
removal, bad damping of sieve plate, high content of coarse fine coal ash on sieve, which results in the influence of coarse fine
coal ash content on the total refined coal ash, thus affecting the yield of clean coal. As for the problems, according to existing
process, superfine bar sieve plate was used, aperture ratio was raised as well as damping effect of sieve bend and screening effect
of fine coal slime were improved, which had brought about better effect on reducing ash content of coarse clean coal, improving
yield of clean coal, and adding economic benefits of enterprises.

Key words: sieve bend; coarse slime; classification and dewatering; superfine bar; aperture ratio; clean coal ash; clean coal yield