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鞠艳旭,黄泊霖,闻岩,等. 水泥熟料堆积体强制对流换热系数实验研究[J]. 科学技术与工程, 2019, 19(28): 253-257.
ju yan xu,et al.Experimental Research on Forced Convective Heat Transfer Coefficient of Cement Clinker Accumulation Body[J].Science Technology and Engineering,2019,19(28):253-257.
水泥熟料堆积体强制对流换热系数实验研究
Experimental Research on Forced Convective Heat Transfer Coefficient of Cement Clinker Accumulation Body
投稿时间:2019-03-14  修订日期:2019-04-30
DOI:
中文关键词:  篦冷机  水泥熟料  堆积体  强制对流换热系数
英文关键词:grate cooler  cement clinker  accumulation body  forced convection heat transfer coefficient
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目);河北省自然科学基金项目
           
作者单位
鞠艳旭 燕山大学机械工程学院
黄泊霖 燕山大学机械工程学院
闻岩 燕山大学机械工程学院
袁林 燕山大学机械工程学院
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中文摘要:
      水泥熟料堆积体的强制对流换热系数是研究其换热规律的重要参数,针对目前没有关于篦冷机内水泥熟料堆积体的强制对流换热关联式的现状,本文通过实验获得了适用于水泥熟料堆积体的强制对流换热系数。首先,通过渗透率实验得到了能够有效表征水泥熟料堆积体宏观物理特性的最小单元体—体特征元,由此确定了换热实验料筐尺寸;然后,基于自主设计的对流换热实验装置,通过测量水泥熟料颗粒温度及出入口空气温度,根据能量守恒定律及牛顿冷却公式分析得到水泥熟料堆积体的强制对流换热系数为19.13 。
英文摘要:
      Forced convection heat transfer coefficient of cement clinker accumulation body is an important parameter for studying its heat transfer law. In view of the fact that there is no correlation for forced convection heat transfer of cement clinker accumulation body in grate cooler at present, this paper obtained more accurate forced convection heat transfer coefficient of cement clinker accumulation based on the experiment.Firstly, through the permeability experiment, the minimum unit which can effectively characterize the macro-physical properties of cement clinker accumulator was obtained, and the size of heat transfer experiment basket was determined. Then, based on the self-designed convective heat transfer experimental device, the temperature of cement clinker particles and the air temperature at the entrance and exit were measured. According to the law of conservation of energy and Newton"s cooling formula, the forced convective heat transfer coefficient of cement clinker stack is 19.13 .
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