| 掘进面出风口风流与风幕调控下的粉尘分布响应曲面优化研究* |
| |
| 引用本文： | 龚晓燕,费颖豪,牛虎明,陈龙,刘壮壮,李相斌,薛河.掘进面出风口风流与风幕调控下的粉尘分布响应曲面优化研究*[J].中国安全生产科学技术,2022,18(12):80-88. |
| |
| 作者姓名： | 龚晓燕 费颖豪 牛虎明 陈龙 刘壮壮 李相斌 薛河 |
| |
| 作者单位： | （1.西安科技大学 机械工程学院，陕西 西安 710054；2.陕西陕北矿业有限责任公司，陕西 榆林 719000） |
| |
| 基金项目： | * 基金项目: 国家自然科学基金项目（51874235）；陕西省自然科学基础研究计划-企业陕煤联合基金项目(2021JLM-01) |
| |
| 摘 要： | 为了解决煤矿掘进面风筒出风口参数不能动态变化，而传统风幕全断面控尘效果不理想引起的粉尘浓度高等问题，通过分析风幕和出风口参数对粉尘分布规律的影响，以此得到合理的出风口风流与风幕综合调控方案，降低粉尘浓度。以陕西神木柠条塔煤矿N1212巷道为研究对象，利用Fluent软件建立出风口风流与风幕综合调控的粉尘场有限元模型，设计出风口风流及风幕综合调控响应曲面实验，得到最佳综合调控方案为:风幕射流出口宽度为0.16 m，风幕射流出口速度为6 m/s，出风口口径为0.9 m，出风口右偏角度为3°。搭建相似模拟实验平台来验证最佳综合调控方案，研究结果表明:调控后回风侧行人呼吸处和司机位置处粉尘平均浓度分别降低89%和81%，有效改善掘进面作业环境。
|
| 关 键 词： | 掘进面 风流调控 风幕调控 粉尘优化 响应曲面法 |
Study on response surface optimization of dust distribution under regulation of air flow and air curtain at air outlet of excavation face |
| |
| GONG Xiaoyan,FEI Yinghao,NIU Huming,CHEN Long,LIU Zhuangzhuang,LI Xiangbin,XUE He.Study on response surface optimization of dust distribution under regulation of air flow and air curtain at air outlet of excavation face[J].Journal of Safety Science and Technology,2022,18(12):80-88. |
| |
| Authors: | GONG Xiaoyan FEI Yinghao NIU Huming CHEN Long LIU Zhuangzhuang LI Xiangbin XUE He |
| |
| Affiliation: | (1.College of Mechanical Engineering,Xi’an University of Science and Technology,Xi’an Shaanxi 710054,China;2.Shaanxi Shanbei Mining Co.,Ltd.,Yulin Shaanxi 719000,China) |
| |
| Abstract: | In order to solve the problems that the parameters of air outlet at the air duct of excavation face in coal mine cannot be dynamically changed,and then the dust control effect of the traditional air curtain in the whole section is not satisfactory,which cause the high dust concentration,the reasonable comprehensive regulation scheme of air flow and air curtain at air outlet was obtained to reduce the dust concentration through analyzing the influence of air curtain and air outlet parameters on the dust distribution.Taking N1212 roadway of Ningtiaota coal mine in Shaanxi Shenmu as the research object,a finite element model of dust field with the comprehensive regulation of air flow and air curtain at air outlet was established by using Fluent software,and the response surface experiment was designed for the comprehensive regulation of air flow and air curtain at air outlet.The optimal comprehensive regulation scheme was obtained,in which the jet outlet width of air curtain was 0.16 m,the jet outlet velocity of air curtain was 6 m/s,the air outlet diameter was 0.9 m,and the right offset angle of air outlet was 3°.A similar simulation experiment platform was established to verify the optimal comprehensive regulation scheme,and the results showed that the average dust concentration at the height of pedestrian breathing zone on the air return side and the driver’s position was reduced by 89% and 81% after the regulation,which effectively improved the working environment of excavation face. |
| |
| Keywords: | excavation face air flow regulation wind curtain regulation dust optimization response surface method |
|
| 点击此处可从《中国安全生产科学技术》浏览原始摘要信息 |
|
点击此处可从《中国安全生产科学技术》下载全文 |
|
