Dry process gunning of refractory castable

Details Dry process gunning of refractory castable Dry process gunning of refractory castable

B - Operations, Transporting

28

B

B28B 19/00 (2006.01) B05B 7/14 (2006.01) C04B 28/06 (2006.01) C21B 7/06 (2006.01) F27D 1/16 (2006.01)

Patent

CA 2204330

A process for applying a refractory castable onto a surface, comprising the steps of: (a) introducing metered amounts of a clay-free, dry refractory castable into a delivery hose, the dry refractory castable having an alumina content of about 40-95%; (b) conveying the dry refractory to a dispensing assembly under pneumatic pressure; (c) introducing water and a set modifying admixture into thedry refractory prior to dispensing the refractory castable from the dispensing assembly; and (d) spraying the hydraulic refractory castable onto a surface.

Procédé pour l'application d'une matière réfractaire pouvant être coulée sur une surface, comprenant les étapes ci-après : a) introduction de quantités mesurées de matière réfractaire sèche sans argile, coulable, dans un tuyau d'alimentation, la matière réfractaire sèche ayant une teneur en alumine de 40 à 95 %; b) transport de la matière réfractaire sèche vers un ensemble de distribution sous pression pneumatique; c) introduction d'eau et d'un adjuvant influant sur la prise de la matière réfractaire sèche, avant distribution de la matière à partir de l'ensemble de distribution; et d) projection de la matière réfractaire coulable sur une surface.

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