| 制粉系统防堵煤综合治理改造技术研究及工程实践 |
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| 引用本文： | 成志红,李德波.制粉系统防堵煤综合治理改造技术研究及工程实践[J].热能动力工程,2017,32(11):109-112. |
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| 作者姓名： | 成志红 李德波 |
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| 作者单位： | 广东珠海金湾发电有限公司,广东电网有限责任公司电力科学研究院 |
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| 基金项目： | 国家自然科学基金重点项目(No. 51376161). |
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| 摘 要： | 本文通过分析某电厂制粉系统雨季堵煤的原因,提出使用降低给煤机出口煤流的速度的方法,并加大给煤机到磨煤机之间落煤管的距离,同时对磨煤机内部流动过程进行了三维数值模拟,获得了磨煤机内部风粉混合物运动的规律,达到了煤流顺利通过落煤管而不与内壁接触的目的,取得了良好的工程改造效果。
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| 关 键 词： | 堵煤，煤流水平速度，落煤管 |
Investigations on the modifications of coal blockage and practical running for a coal fired furnace |
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| Zhihong Cheng and Debo Li.Investigations on the modifications of coal blockage and practical running for a coal fired furnace[J].Journal of Engineering for Thermal Energy and Power,2017,32(11):109-112. |
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| Authors: | Zhihong Cheng and Debo Li |
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| Affiliation: | Zhuhai Jian Wan Power Plant of Guang Province and Electric Power Research Institute of Guangdong Power Grid Corporation |
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| Abstract: | Owing to the problems on the coal blockage with the rainy day, some practical modifications are conducted in this paper. The coal flow rate at the outlet of feeding coal device is decreasing, and the pipe length between the feeding coal device and mill is increasing to a higher value. From these modifications, very good results are obtained in the practical running considering the coal blockage. It is beneficial for other power plants on the coal blockage prevention in future running. |
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| Keywords: | Coal blockage coal flow horizontal velocity coal tube |
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