Study on the application of elliptic cross-section matrices for axial high gradient magnetic separation: key considerations for optimization

• Autorzy: Zheng Xiayu , Wang Yuhua , Lu Dongfang , Li Xudong

Identyfikatory

DOI

10.5277/ppmp18178

• Języki publikacji: EN

Abstrakty

EN

To reveal the key optimization considerations for the application of elliptic cross-section matrices in axial high gradient magnetic separation (HGMS), the performance of circular and elliptic matrices was investigated experimentally and theoretically, providing that the short axis of elliptic matrix was equal to the diameter of circular matrix. Three schemes were adopted to investigate the performance matrices with ratio of long axis to short axis λ of 1 (circular matrix), 1.6 and 2. Under the same matrix unit number, hematite recovery of elliptic matrices could be 5~20% higher than that of circular matrices. For the case that the separation space was fully filled under the same matrix unit spacing, elliptic matrices showed higher and lower hematite recovery in low and relatively high magnetic field. The particle capture cross section area of elliptic matrix could be 1.4~1.8 times larger than that of circular matrix. Analyses with particle capture models showed that higher hematite recovery was ascribed to the larger particle capture cross section of the elliptic matrices and overlapping of the capture cross section was responsible for the lower hematite recovery of elliptic matrices in relatively high magnetic field. For substitution of circular matrices with elliptic matrices in axial HGMS, overlapping of capture cross section of target particles should be taken into consideration.

Słowa kluczowe

EN

elliptic matrices; expanded capture models; capture cross section; overlapping

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2019
• Tom: Vol. 55, iss. 3
• Strony: 655--666
• Opis fizyczny: Bibliogr. 33 poz., rys. kolor.

Twórcy

autor

Zheng Xiayu

• Central South University, Yuelu District NO. 968, 410083 Changsha, China

autor

Wang Yuhua

• Central South University, Yuelu District NO. 968, 410083 Changsha, China

autor

Lu Dongfang

• Central South University, Yuelu District NO. 968, 410083 Changsha, China

autor

Li Xudong

• Central South University, Yuelu District NO. 968, 410083 Changsha, China

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