Method and apparatus for feeding a pulverized material

C - Chemistry – Metallurgy – 03 – B

Patent

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C03B 3/00 (2006.01) G01F 11/28 (2006.01) G01G 13/02 (2006.01)

Patent

CA 2701611

The present invention is referred to a method and an apparatus for feeding a pulverized material. The apparatus comprises fuel feeding means to supply pulverized fuel. Flexible means are coupled be-tween the fuel feeding means and dosing means for the filling of the dosing means. The dosing means are closed and pressurized once that the dosing means have been filled. The pulverized material is discharged from the dosing means while controlling the pressurization during the discharge, in order to provide a continuous and constant discharge of the pulverized fuel. The apparatus includes means for detecting a minimum level or weight of pulverized fuel in the dosing means, and means for depressurizing the dos-ing means once that the minimum level of the pulverized fuel has been reached.

La présente invention porte sur un procédé et un appareil d'apport de matière pulvérisée. L'appareil comporte des moyens d'alimentation en combustible pour fournir un combustible pulvérisé. Des moyens souples sont couplés entre les moyens d'alimentation en combustible et des moyens de dosage en vue du remplissage des moyens de dosage. Les moyens de dosage sont fermés et mis sous pression une fois que les moyens de dosage ont été remplis. La matière pulvérisée est déchargée à partir des moyens de dosage simultanément à la régulation de la mise sous pression pendant la décharge, de façon à garantir une décharge continue et constante du combustible pulvérisé. L'appareil comprend des moyens pour détecter un niveau ou poids minimum du combustible pulvérisé dans les moyens de dosage, et des moyens pour réduire la pression des moyens de dosage une fois que le niveau minimum du combustible pulvérisé a été atteint.

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