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| 水分对港口煤炭粉尘起动风速的影响研究 | |
| 引用本文： | 王建峰,马兰,詹水芬,张晓春,彭士涛,马春.水分对港口煤炭粉尘起动风速的影响研究[J].水道港口,2009,30(3):209-212. |
| 作者姓名： | 王建峰 马兰 詹水芬 张晓春 彭士涛 马春 |
| 作者单位： | 1. 福建华电储运有限公司,福州,350512 2. 神华天津煤炭码头有限责任公司,天津,300456 3. 交通部天津水运工程科学研究所,水路交通环境保护技术实验室,天津,300456 4. 南开大学环境科学与工程学院,天津,300071 |
| 基金项目： | 国家自然科学基金项目，交通部科技项目 |
| 摘 要： | 为了量化港口煤炭粉尘起动过程中水分产生的影响,采用风洞实验测定含水率变化对粉尘颗粒起动风速的影响。结果表明,水分含量的变化对粉尘颗粒起动风速有影响,且对不同粒径颗粒的影响程度不同;当含水率达到一定数值时,较小颗粒的起动风速明显增大。根据实验数据建立了水分作用下粉尘颗粒起动风速的数学模型,经验证相关性优于传统模型,实测值与理论计算值基本一致,可以定量评价不同水分条件下粉尘颗粒的起动风速。 |
| 关 键 词： | 煤炭粉尘 水分 起动风速 数学模型 |
Effects of moisture on threshold velocity of coal dust |
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| WANG Jian-feng,MA Lan,ZHAN Shui-fen,ZHANG Xiao-chun,PENG Shi-tao,MA Chun.Effects of moisture on threshold velocity of coal dust[J].Journal of Waterway and Harbour,2009,30(3):209-212. | |
| Authors: | WANG Jian-feng MA Lan ZHAN Shui-fen ZHANG Xiao-chun PENG Shi-tao MA Chun |
| Institution: | 1.Huadian Storage and Transportation Co.Ltd.of Fujian Province;Fuzhou 350512;China;2.Shenhua Tianjin Coal Terminal Co.Ltd.;Tianjin 300456;3.Tianjin Research Institute for Water Transport Engineering;Laboratory of Environmental Protection in Water Transport Engineering;4.College of Environmental Science and Engineering;Nankai University;Tianjin 300071;China |
| Abstract: | In order to research effect of moisture on threshold velocity of coal dust,a wind tunnel experiment that measured effect of changes in the moisture content of dust particles on threshold velocity is conducted.The results show that the moisture content of dust particles affects the threshold velocity and the degree relates on size of particles.According to the experimental data,a new threshold velocity model of coal dust that considering with effect of moisture has been set up.The new model is better fitted ... |
| Keywords: | coal dust moisture threshold velocity mathematical model |
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