A rotary charging device for a shaft furnace

C - Chemistry – Metallurgy – 21 – B

Patent

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Details

C21B 7/20 (2006.01) F27B 1/20 (2006.01)

Patent

CA 2671393

A rotary charging device (10) for a shaft furnace commonly comprises a rotary distribution means (12) for distributing charge material on a charging surface in the shaft furnace. A rotatable structure supports (16) the rotary distribution means and a stationary support (18) rotatably supports the rotatable structure. According to the invention, the charging device (10) is equipped with an inductive coupling device (30) including a stationary inductor (34) fixed to the stationary support and a rotary inductor (36) fixed to the rotatable structure. The stationary inductor (34) and the rotary inductor (36) are separated by a radial gap and configured as rotary transformer for achieving contact-less electric energy transfer from the stationary support (18) to the rotatable structure (16) by means of magnetic coupling trough the radial gap for powering an electric load arranged on the rotatable structure (16) and connected to said rotary inductor (36).

La présente invention concerne un dispositif de charge rotative (10) pour un four à arbre, qui comprend généralement un moyen de distribution rotatif (12) pour distribuer le matériau de charge sur une surface de charge dans le four à arbre. Une structure par pivotement soutient (16) le moyen de distribution rotatif et un support stationnaire (18) soutient par pivotement la structure par pivotement. Selon l'invention, le dispositif de charge (10) est équipé d'un dispositif de couplage inductif (30) comprenant un inducteur stationnaire (34) fixé sur le support stationnaire et un inducteur rotatif (36) fixé sur la structure par pivotement. L'inducteur stationnaire (34) et l'inducteur rotatif (36) sont séparés par un intervalle radial et configurés sous forme de transformateur rotatif pour parvenir à un transfert d'énergie électrique sans contact depuis le support stationnaire (18) vers la structure par pivotement (16) au moyen d'un couplage magnétique via l'intervalle radial pour alimenter une charge électrique placée sur la structure par pivotement (16) et reliée à l'inducteur rotatif (36).

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