Study on the Coupling Behaviour of Microwave Absorption for Sulphide Concentrate

Qiu Hong Mo; Xian Wen Zhou; Xiu Juan Su; Chun Lin He

doi:10.4028/www.scientific.net/AMR.881-883.1526

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 881-883Study on the Coupling Behaviour of Microwave...

Study on the Coupling Behaviour of Microwave Absorption for Sulphide Concentrate

Abstract:

Abstract. The microwave energy absorption of solid mineral in microwave field is the key problem of the microwave metallurgy application. For the calculation formula of absorbing microwave energy (P=2πfε₀ε"E²) the fundamental data is necessary, including dielectric constant and electric field strength etc. But these basic data varies in practice due to the variation of molecular structure, overall dimension, and electromagnetic parameter of the mineral. Therefore, the theoretical calculation formula is difficult to predict the microwave absorbing ability of solid mineral [1-3]. In this paper the ability of four kinds of sulphide concentrate and their mixture coupling in absorbing microwave was investigated by intermediate medium calorimetry. The results show that the microwave-absorbing ability of chalcopyrite concentrate is the strongest, sphalerite concentrate is the weakest, and sphalerite concentrate is stronger than silica, the mixture minerals still keep their own microwave absorbing characteristics. The mass percent of strong absorbent of microwave decide the microwave-absorbing ability of mixture, and affect energy transfer between microwave and mineral.

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Periodical:

Advanced Materials Research (Volumes 881-883)

Pages:

1526-1530

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.881-883.1526

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Online since:

January 2014

Authors:

Qiu Hong Mo*, Xian Wen Zhou, Xiu Juan Su, Chun Lin He

Keywords:

Intermediate Medium Calorimetry, Microwave, Microwave Absorbing Characteristic, Sulphide Concentrate

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