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在煤矿生产过程中,粉尘是困扰着安全生产的重大灾害之一.对于煤矿综掘工作面粉尘防治工作,重点是针对截割产尘源.为了降低工作面粉尘浓度,改善工作面劳动环境,通过分析综掘工作面粉尘的主要来源和现场测试综掘巷道粉尘浓度的分布规律,在传统综掘工作面高压喷雾降尘的基础上,提出了2种改进的综掘工作面高效喷雾降尘方案.方案1使用增压水泵,设计一台体积小、重量轻的水泵泵组,安装在掘进机机身上,通过增压水泵的特定转换,获得高压水;方案2使用掘进机上的液压油,驱动一台以液压水泵为核心的增压泵,获得高压水.2种方案均克服了传统方法的缺点和不足,结合抑尘剂配比装置,在实际应用中取得了良好的降尘效果,降尘率最高达到了84%.
In the process of coal mine production, dust is one of the major disasters plagued safety production.For the dust prevention and control work of fully mechanized coal mining face, the focus is on cutting dust source.In order to reduce the concentration of dust on the working face and improve working environment, Based on the analysis of the main sources of the dust in the fully mechanized mining face and the distribution of the dust concentration in the fully mechanized mining roadway, two kinds of improved high efficiency dust spraying schemes are put forward on the basis of the high pressure spray dustfall in the fully mechanized mining face. Scenario 1 The use of booster pumps, the design of a small, lightweight pump group, installed in the boring machine body, through the specific conversion booster pump to obtain high-pressure water; Option 2 using the hydraulic oil on the roadheader to drive A booster pump with hydraulic pump as its core and high pressure water are obtained.The two kinds of schemes have overcome the shortcomings and shortcomings of the traditional methods and combined with dust suppressant proportioning device have achieved good dust reduction effect in practical application, Up to 84%.