连采机掘进工作面外喷雾优化设计与应用

发布时间：2018-02-04 03:33

本文关键词： 连采机掘进工作面外喷雾优化设计应用效果　出处：《矿业安全与环保》2015年01期 　论文类型：期刊论文

【摘要】：以山西中煤华晋王家岭煤矿胶带大巷连采机掘进工作面为工程背景,针对煤层煤质属性及连采机割煤产尘特点,结合连采机自身结构和现场外喷雾使用效果,优化并设计了连采机摇臂上部机面、前部、下侧和采集部后部大水量低压喷雾装置,实施大水量预湿润垮落煤体减少产尘、全方位喷雾封闭尘源控制粉尘逃逸扩散,以及快速集中喷雾降尘技术。现场应用表明:连采机喷雾优化后,降尘效率提升了90.3%,大量粉尘被控制在连采机前部2 m范围内,作业环境明显改善。
[Abstract]:Taking the driving face of belt belt roadway in Shanxi middle coal mine Huazin Wangjialing coal mine as the engineering background, aiming at the coal quality attribute of coal seam and the characteristics of dust production of coal cutting machine, combining the structure of the continuous coal mining machine and the effect of spray application outside the site. Optimization and design of the upper face of the rocker arm of the continuous mining machine, the front, the lower side and the back of the collection department of the large volume of low pressure spray device, the implementation of large amount of water pre-wetting coal body to reduce dust production. The technology of dust escape and diffusion controlled by omnidirectional spray sealed dust source and rapid centralized spray dust control technology. The field application shows that after spray optimization of continuous mining machine, the dust reduction efficiency has been increased by 90.3%. A large amount of dust is controlled within 2 m of the front of the continuous mining machine, and the working environment is obviously improved.
【作者单位】：山西中煤华晋能源有限责任公司;中煤科工集团重庆研究院有限公司;
【分类号】：TD714.4
【正文快照】： 随着掘进机械化程度的不断提高,矿井开采方法和采煤工艺向着高产、集约化生产的方向发展[1]。连采机掘进工作面具有掘进速度快、单位时间产量高的优点,是未来机掘工作面发展趋势,但同时该技术还容易导致掘进巷道粉尘产生量高,这也间接给矿井的粉尘防治工作带来了一定困难[2-3]

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