岩巷炮掘工作面长抽短压式通风降尘技术研究及实践

doi:10.11799/ce201511024

煤炭工程 ›› 2015, Vol. 47 ›› Issue (11): 74-77.doi: 10.11799/ce201511024

岩巷炮掘工作面长抽短压式通风降尘技术研究及实践

李继良¹,谭强²,王志宝³,谢华东⁴,付伟⁵

1. 兖矿集团有限公司东滩煤矿
2. 重庆市粉尘所
3. 中煤科工集团重庆研究院有限公司
4. 兖矿集团东滩煤矿
5. 山东省兖州煤业股份有限公司东滩矿

收稿日期:2014-09-28 修回日期:2014-12-03 出版日期:2015-11-12 发布日期:2015-12-07
通讯作者: 谭强 E-mail:zgsydx7@163.com

Research and practice of ventilation and dust-reducing technology at the rock heading blast advancement face with FANP ventilation

Received:2014-09-28 Revised:2014-12-03 Online:2015-11-12 Published:2015-12-07

摘要/Abstract

摘要： 为了解决岩巷掘进工作面的高浓度粉尘问题，利用Fluent对长抽短压通风除尘方式的流场进行解算，得出了压抽比对粉尘浓度分布规律与风流运动的影响规律，结果表明：岩巷掘进工作面合理的压抽比取值范围为0.5～0.75。并在东滩煤矿六采区岩巷掘进工作面进行现场应用，工作面的粉尘浓度降至10mg/m3以下，达到了预期的目标。

关键词: 岩巷掘进工作面, 长抽短压, 压抽比, 通风降尘

Abstract: In order to solve the problem of high dust concentration of rock drivage face, the flow field of far-absorption-near press(FANP) ventilation and dust removal was calculated by Fluent, and the influence law of pressure extraction ratio to distribution of dust concentration and wind flow. The results show that: reasonable pressure extraction ratio of rock drivage face is between 0.5 and 0.75. Using reasonable pressure extraction ratio in rock drivage face of the sixth mining area of Dongtan coal mine, dust concentration of the working face was reduced to less than 10 mg/m3, and achieved the desired goal.

Key words: rock drivage face, far-absorption-near press, pressure extraction ratio, dust

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