综采工作面粉尘分布实测及降尘技术探析

陈荣柱1，谭聪2，谢中强1

(1.平顶山天安煤业股份有限公司 五矿，河南 平顶山 467000；2.北京科技大学 土木与环境工程学院，北京 100083)

[摘要]为了降低综采工作面的粉尘浓度，对平顶山天安煤业股份有限公司五矿综采工作面各作业工序粉尘浓度进行现场测定并分析，结果表明：割煤作业时滚筒附近粉尘浓度急剧增加，随后又迅速下降；移架作业时在移架点下风侧5 m粉尘浓度达到最大；转载作业时在转载点处粉尘浓度急剧增加，随后缓慢下降。针对目前粉尘控制方面的不足之处，结合各工序的产尘特点，提出了煤层注水、降尘水幕、气水喷雾等粉尘控制技术措施。经现场实际应用表明，所采取的粉尘控制技术效果显著，全尘降尘率达到了75.5%，呼尘降尘率达到63.8%。

[关键词]综采工作面；粉尘分布；煤层注水；捕尘水幕

[中图分类号]TD714.2[文献标识码]A

[收稿日期]2014-03-14

DOI[]10.13532/j.cnki.cn11-3677/td.2015.01.029

[基金项目]国家自然科学基金(51274024)：综放工作面多尘源多场耦合机理及仿真模拟和控制方法的研究

[作者简介]陈荣柱(1969-)，男，重庆云阳人，高级工程师，平顶山天安煤业股份有限公司五矿总工程师，从事煤矿安全生产、技术管理、经营管理方面的工作。

Dust Distribution Measurement of Full-mechanized Mining

Face and Dust Alleviation Technology

CHEN Rong-zhu1, TAN Cong2, XIE Zhong-qiang1

(1.5th Mine of Pingdingshan Tian'an Coal Co., Ltd., Pingdingshan 467000, China;

2.Civil & Environment Engineering School, Beijing University of Science & Technology, Beijing 100083, China)

Abstract:In order to reduce dust concentration of full-mechanized mining face, dust concentration of every process of full-mechanized mining face, 5th Mine of Pingdingshan Tian'an Coal was measured.Analysis result showed that during coal mining, dust concentration abruptly rose near the rollers of coal cutter and rapidly declined; during moving supports, dust concentration at 5m down from moving point reached the maximum; in transiting, dust concentration at the transiting point sharply rose and then slowly declined. For the problem in dust control, considering dust production characteristic of every process, water infusion in coal-seam, dust-reduction water curtain and gas-water spraying were put forward.On-the-spot application showed that the effect of dust control technology was excellent.All dust reduction ratio reached 75.5%, respirable dust reduction reached 63.8%.

Keywords:full-mechanized mining face; dust distribution; water infusion in coal-seam; dust-capturing water curtain

[引用格式]陈荣柱，谭聪，谢中强.综采工作面粉尘分布实测及降尘技术探析[J].煤矿开采，2015，20(1)：99-101.

随着煤矿生产机械化水平的提高，井下生产所产生的粉尘越来越大，特别是对人体危害比较大的呼吸性粉尘浓度也大幅上升[1-3]。粒径在7μm以下的呼吸性粉尘长时间在肺部积累极易形成尘肺病，同时高浓度的煤尘还有发生爆炸的危险。……