针对陶瓷干法造粒机造粒过程温度场对造粒效果的影响,结合实验与数值模拟对比分析造粒过程温度场对造粒效果的影响.基于CFD方法建立模拟造粒过程温度场的数学模型,模拟造粒过程中温度场随时间变化情况,并实验测得造粒室温度值、造粒成品率随时间变化情况.仿真结果与实验数据对比表明:当造粒时间为7 min时,仿真结果显示造粒室内的温度值都低于80℃,实验测得颗粒成品率占整体颗粒质量的56％;当造粒时间为9 min时,仿真结果显示造粒室内温度值高于80 ℃的区域占造粒体积3％,实验测得颗粒成品率占整体颗粒质量的72％;当造粒时间为11 min时,仿真结果显示造粒室内温度值高于80℃的区域占造粒体积21％,实验测得颗粒成品率占整体颗粒质量的61％.仿真结果与实验数据对比分析说明:当造粒室内温度值高于80℃时,将在一定程度上降低造粒的成品率.
参考文献
| [1] | 李绍勇;周荣光;梁飞峰.超细化干法造粒制备陶瓷粉料技术[J].佛山陶瓷,2010(8):20-22. |
| [2] | 曾令可;邓伟强;刘艳春;税安泽;王慧;刘平安;张海文.陶瓷工业能耗的现状及节能技术措施[J].陶瓷学报,2006(1):109-115. |
| [3] | Cecile Pagnoux;Nicolas Tessier-Doyen;Antoine Pringuet.Influence of the suspension flocculated state on the microstructure of alumina spheres elaborated by colloidal granulation[J].Journal of the European Ceramic Society,20098(8):1379-1385. |
| [4] | 杨洪儒;陶晓文.陶瓷墙地砖干法制粉工艺技术现状及发展[J].陶瓷,2001(3):18-20. |
| [5] | Santl M;Ilic I;Vrecer F;Baumgartner S.A compressibility and compactibility study of real tableting mixtures: the impact of wet and dry granulation versus a direct tableting mixture.[J].International Journal of Pharmaceutics,20111/2(1/2):131-139. |
| [6] | Yuhua Pan;Peter J. Witt;Dongsheng Xie.CFD simulation of free surface flow and heat transfer of liquid slag on a spinning disc for a novel dry slag granulation process[J].Progress in computational fluid dynamics: An international journal,20105/6(5/6):292-299. |
| [7] | Xingtao Chen;Tiecheng Lu;Nian Wei.Effect of ball-milling granulation with PVB adhesive on the sinterability of co-precipitated Yb:YAG nanopowders[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2014:448-454. |
| [8] | 李元媛;曾金涛;康艳婷;梁华娟;黄炳辉.佛山陶瓷产业升级问题研究[J].经济研究导刊,2010(24):146-148,151. |
| [9] | 杨洪儒;苏桂军;曾明锋.我国建筑卫生陶瓷工业能耗现状及节能潜力研究[J].陶瓷,2005(11):9-20. |
| [10] | Michiel Nijemeisland;Anthony G.Dixon.CFD Study of Fluid Flow and Wall Heat Transfer in a Fixed Bed of Spheres[J].AIChE Journal,20045(5):906-921. |
| [11] | Anthony G. Dixon;Gregory Walls;Helen Stanness.Experimental validation of high Reynolds number CFD simulations of heat transfer in a pilot-scale fixed bed tube[J].Chemical engineering journal,2012:344-356. |
| [12] | 吴南星;廖达海;占甜甜.陶瓷干法制粉机搅拌轴偏心距对颗粒分散性的影响[J].硅酸盐通报,2014(12):3300-3303. |
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