综掘工作面门型风幕控尘除尘系统粉尘防治研究  

Research on dust prevention and control of door-type air curtain dust control and removal system in fully mechanized excavation face

作　　者：马胜利[1] 张强 龚晓燕[1] MA Shengli;ZHANG Qiang;GONG Xiaoyan(College of Mechanical Engineering,Xi’an University of Science and Technology,Xi’an 710054,China)

机构地区：[1]西安科技大学机械工程学院,陕西西安710054

出　　处：《矿业安全与环保》2022年第2期16-20,共5页Mining Safety & Environmental Protection

基　　金：国家自然科学基金项目(51874235)。

摘　　要：针对综掘工作面粉尘防治问题,提出了利用风幕控尘结合压抽混合式通风除尘的门型风幕控尘除尘系统。通过理论分析计算确定各风幕参数之间的函数关系,根据玉华煤矿2410综掘工作面实际条件建立几何模型,应用Fluent软件对门型风幕控尘除尘系统的风流场和粉尘场进行仿真分析,并与现场实测数据进行对比分析。研究结果表明:门型风幕能有效地将粉尘控制在距工作面5 m范围内,同时配合除尘风机将含尘风流抽排过滤,风幕后方粉尘质量浓度明显降低,呼吸带粉尘平均质量浓度降至32.67 mg/m^(3),与原有压抽混合式通风除尘相比粉尘质量浓度降低了86%,显著提高了除尘效率,工作面环境得到明显改善。In view of the problem of dust prevention and control in fully mechanized excavation face,a door-type air curtain dust control and removal system was proposed,which combined air curtain dust control with pressure extraction mixed ventilation and dust removal.Through theoretical analysis and calculation,the functional relationship between air curtain parameters was determined.According to the actual conditions of 2410 fully mechanized excavation face in Yuhua Coal Mine,a geometric model was established.Fluent software was used to simulate and analyze the air flow field and dust field of the door-type air curtain dust control and removal system,and the comparison and analysis were made with the field measured data.The research results show that:the door-type air curtain can effectively control the dust within 5 m from the working face,at the same time,the dust-containing air flow can be extracted and filtered by the dust removal fan,and the dust mass concentration behind the air curtain is significantly reduced,the average mass concentration of dust in the respiratory zone decreased to 32.67 mg/m^(3).Compared with the original pressure extraction mixed ventilation dust removal,the dust mass concentration is reduced by 86%,which significantly improves the dust removal effect and significantly improves the environment of working face.

关 键 词：综掘工作面 粉尘防治 门型风幕 控尘除尘系统 风幕参数 数值模拟 

分 类 号：TD714.4[矿业工程—矿井通风与安全]