| 摘要: |
| 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%. |
| 关键词: 综掘工作面 粉尘防治 喷雾降尘 |
| DOI： |
| 分类号:TD714 |
| 基金项目:国家自然科学基金委员会国际合作交流项目（2011ZX024） |
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| Full-mechanized excavation face efficient sprinkler & dust fall system |
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Xu Mangui1，２，Liu Xinkai1，２，Wen Xinqiang31,2,3
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1.College of Energy Science and Engineering ,Xi’an University of Science and Technology,Xi’an 710054,China;2.Key Laboratory of Western Mine Exploitation and Hazard Prevention of Education, Xi’an 710054,China;3.Shaanxi Star Coal Mine Safety Equipment Compang Limited,Xi’an 710018,China
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| Abstract: |
| Dust is one of the major disasters in coal mine production process. For coal mine dust prevention and control work spray dust is very important. The main source of dust and field test the dust concentration distribution in full-mechanized excavation face were introduced, and two efficient plans for spray dust were presented. Without the traditional large volume of water tanks and complicated water control system, plan A used booster pumps to design a small size and light weight pump group, which installed on the body of machine, and got high-pressure water though the specific conversion of booster pumps. Plan B getting high-pressure water was through the hydraulic oil of the machine to drive a booster pump which based on the hydraulic pump as a core. Both schemes were overcame the shortcomings and the insufficiency of traditional methods and obtained very good dustproof effects combined with the use of additive equipment of dust suppression after application. Dust highest rate reached 84%. |
| Key words: comprehensive tunneling working face dust prevention and control spray dust |
