Effect of inlet area on the performance of a two-stage cyclone separator

doi:10.1016/j.cjche.2021.06.003

中国化学工程学报 ›› 2022, Vol. 44 ›› Issue (4): 8-19.DOI: 10.1016/j.cjche.2021.06.003

Effect of inlet area on the performance of a two-stage cyclone separator

Jihe Chen¹, Zhongan Jiang¹, Bin Yang², Yapeng Wang¹, Fabin Zeng¹

1 School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2 China Academy of Safety Science and Technology, Beijing 100029, China

收稿日期:2021-01-28 修回日期:2021-06-06 出版日期:2022-04-28 发布日期:2022-06-18
通讯作者: Zhongan Jiang,E-mail:jiangzhongan@ustb.edu.cn
基金资助:
This work was financially supported by the National Key Research and Development Program of China (2016YFC0801700), the Project of the National Natural Science Foundation of China (51604018), the Basic Research Funding of the China Academy of Safety Science and Technology (2019JBKY11 and 2019JBKY04).

Effect of inlet area on the performance of a two-stage cyclone separator

Jihe Chen¹, Zhongan Jiang¹, Bin Yang², Yapeng Wang¹, Fabin Zeng¹

1 School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2 China Academy of Safety Science and Technology, Beijing 100029, China

Received:2021-01-28 Revised:2021-06-06 Online:2022-04-28 Published:2022-06-18
Contact: Zhongan Jiang,E-mail:jiangzhongan@ustb.edu.cn
Supported by:
This work was financially supported by the National Key Research and Development Program of China (2016YFC0801700), the Project of the National Natural Science Foundation of China (51604018), the Basic Research Funding of the China Academy of Safety Science and Technology (2019JBKY11 and 2019JBKY04).

摘要/Abstract

摘要： The cyclone separator is an important separation device. This paper presents a new type of embedded two-stage cyclone, which includes a 2nd-stage cyclone (internal traditional cyclone) with multiple inlets and a 1st-stage cyclone (outer cylinder) that unifies the 2nd-stage cyclone inlets into one inlet. The Taguchi experimental method was used to study the two-stage cyclone separator's inlet area on its performance. Studies have shown that the increase of the 1st-stage cyclone inlet area and the increase in the number of 2nd-stage cyclone inlets (N) positively affect reducing the pressure drop and a negative effect on efficiency. It is recommended to use 2S (the original 1st-stage cyclone inlet area) of the 1st-stage cyclone inlet area and 2N of the 2nd-stage cyclone inlets when separating fine particles. Compared with a traditional cyclone, the pressure drop is reduced by 1303 Pa, the mass separation efficiency (E_q) is increased by 0.56%, and the number separation efficiency (E_n) is increased by 2.05%. When separating larger particles, it is recommended to use 2S of the 1st-stage cyclone inlet area and 4N of the 2nd-stage cyclone inlets. Compared with a traditional cyclone, although E_n decreases slightly, the pressure drop is reduced by 3055 Pa, and the E_q is increased by 0.56%. The research results provide new insight into the design of the cyclone.

关键词: Two-stage cyclone, Mass separation efficiency, Pressure drop, Taguchi method, Particle concentration

Abstract: The cyclone separator is an important separation device. This paper presents a new type of embedded two-stage cyclone, which includes a 2nd-stage cyclone (internal traditional cyclone) with multiple inlets and a 1st-stage cyclone (outer cylinder) that unifies the 2nd-stage cyclone inlets into one inlet. The Taguchi experimental method was used to study the two-stage cyclone separator's inlet area on its performance. Studies have shown that the increase of the 1st-stage cyclone inlet area and the increase in the number of 2nd-stage cyclone inlets (N) positively affect reducing the pressure drop and a negative effect on efficiency. It is recommended to use 2S (the original 1st-stage cyclone inlet area) of the 1st-stage cyclone inlet area and 2N of the 2nd-stage cyclone inlets when separating fine particles. Compared with a traditional cyclone, the pressure drop is reduced by 1303 Pa, the mass separation efficiency (E_q) is increased by 0.56%, and the number separation efficiency (E_n) is increased by 2.05%. When separating larger particles, it is recommended to use 2S of the 1st-stage cyclone inlet area and 4N of the 2nd-stage cyclone inlets. Compared with a traditional cyclone, although E_n decreases slightly, the pressure drop is reduced by 3055 Pa, and the E_q is increased by 0.56%. The research results provide new insight into the design of the cyclone.

Key words: Two-stage cyclone, Mass separation efficiency, Pressure drop, Taguchi method, Particle concentration

Jihe Chen, Zhongan Jiang, Bin Yang, Yapeng Wang, Fabin Zeng. Effect of inlet area on the performance of a two-stage cyclone separator[J]. 中国化学工程学报, 2022, 44(4): 8-19.

Jihe Chen, Zhongan Jiang, Bin Yang, Yapeng Wang, Fabin Zeng. Effect of inlet area on the performance of a two-stage cyclone separator[J]. Chinese Journal of Chemical Engineering, 2022, 44(4): 8-19.

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Effect of inlet area on the performance of a two-stage cyclone separator

Effect of inlet area on the performance of a two-stage cyclone separator

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