旋转式造粒喷头制造技术改进及应用

doi:10.16085/j.issn.1000-6613.2019-1953

化工进展 ›› 2020, Vol. 39 ›› Issue (S1): 39-42.DOI: 10.16085/j.issn.1000-6613.2019-1953

旋转式造粒喷头制造技术改进及应用

齐刚¹(), 董瑞伟¹, 侯明¹, 龚婷², 杨歌¹, 刘孝弟²()

^1.首都航天机械有限公司，北京 100076
^2.北京航天普霖科技有限公司，北京 100070

收稿日期:2019-12-09 出版日期:2020-05-20 发布日期:2020-06-29
通讯作者: 刘孝弟
作者简介:齐刚（1978—），男，硕士，高级工程师，主要从事金属结构件工艺技术研究。E-mail：qigang_2006@sina.com。

Manufacturing technology improvement and application for rotating urea prilling bucket

Gang QI¹(), Ruiwei DONG¹, Ming HOU¹, Ting GONG², Ge YANG¹, Xiaodi LIU²()

^1.Capital Aerospace Machinery Co. , Ltd. , Beijing 100076, China
^2.Beijing Aerospace Pulin Technology Co. , Ltd. , Beijing 100070, China

Received:2019-12-09 Online:2020-05-20 Published:2020-06-29
Contact: Xiaodi LIU

摘要/Abstract

摘要：

针对旋转式造粒喷头在使用过程中喷洒不均匀、焊缝易开裂、使用寿命低等问题，对设备结构、工作原理、原加工方案开展研究，通过比较分析直孔与斜孔喷头的优缺点，并结合使用效果，确定了斜孔喷头的研究方向。通过理论推导与计算，确定了最优斜孔角度，有效保证了造粒喷头的工作效率与喷粒质量。通过调整加工方案，采用喷筒双面自动焊接和下盖水切割分体的工艺方法，保证了造粒喷头的各项指标，提高了使用寿命。最终改进型喷头通过工程实践证明了可行性，并在国内多家化工厂内得到了推广应用，逐步取代进口技术，达到了尿素生产关键设备、部件国产化的目标。

关键词: 造粒喷头, 制孔, 焊接, 工程应用

Abstract:

Aiming at the problem of uneven spraying, easy cracking and low service life of rotary granulation sprinkler during use, the equipment structure, working principle and original processing scheme were studied. Based on the comparative analysis of the advantages and disadvantages of the straight hole bucket and the inclined hole bucket, and combined with the application effect, the research direction of the inclined hole nozzle was determined. Through theoretical derivation and calculation, the optimal angle of inclined hole was determined, which effectively guarantees the working efficiency and the quality of prilling bucket. By adjusting the processing scheme, adopting the process of double-sided automatic welding of spray drum and water cutting of lower cover, the indexes of prilling bucket are guaranteed and the service life of prilling bucket is increased. Finally, the feasibility of the improved prilling bucket has been proved by engineering practice, and it has been popularized and applied in many domestic chemical plants, gradually replacing the imported technology, achieving the goal of localization of key equipment and components in urea production.

Key words: prilling bucket, hole machining, welding, engineering application

中图分类号:

TQ 441.41

齐刚, 董瑞伟, 侯明, 龚婷, 杨歌, 刘孝弟. 旋转式造粒喷头制造技术改进及应用[J]. 化工进展, 2020, 39(S1): 39-42.

Gang QI, Ruiwei DONG, Ming HOU, Ting GONG, Ge YANG, Xiaodi LIU. Manufacturing technology improvement and application for rotating urea prilling bucket[J]. Chemical Industry and Engineering Progress, 2020, 39(S1): 39-42.

图/表 7

图1 塔式尿素造粒机结构

图2 直孔喷头出口尿素液柱合成速度

图3 斜孔喷头出口尿素液柱合成速度

图4 直孔喷头和斜孔喷头在造粒塔内横向喷洒密度对比

图5 喷头斜孔的加工过程

图6 造粒喷头的结构

图7 喷筒纵焊缝焊接情况

参考文献 5

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	YUAN Y. Urea [M]. Beijing: Chemical Industry Press, 1997: 228-236.
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旋转式造粒喷头制造技术改进及应用

Manufacturing technology improvement and application for rotating urea prilling bucket

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