B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 3/12 (2006.01) A01M 7/00 (2006.01) A01M 11/00 (2006.01) B01F 5/02 (2006.01) B01F 5/06 (2006.01) B01F 15/00 (2006.01) B01F 15/04 (2006.01) B01F 5/04 (2006.01) B01F 15/02 (2006.01)
Patent
CA 2206560
A description is given of a method for the contamination-free metering and conveying of solid powders, which are to be dispersed or dissolved, from a solids storage container to a dispersing or dissolving tank, the solids storage container having a discharge hopper, coaxially with which a downwardly widening cone is arranged, which in the closure position rests with its base edge on the hopper inner wall and in the open position is raised from the hopper wall so as to leave open an annular gap, which is characterized in that, the solid powder is supplied, in the open position of the cone, in a freely flowing manner to a liquid jet pump which is operated with the dispersing agent or solvent, is dispersed in the liquid jet and is conveyed by the latter into the dispersing or dissolving tank, the amount of solid being metered with reference to a calibration curve by controlling the time for which the cone is in the openposition, and the dispersing or dissolving tank being filled with the dispersingagent or solvent in accordance with the desired dilution level.
Description d'une méthode pour le dosage et le transport, sans contamination, de poudres solides, en vue de leur dispersion ou de leur dissolution, à partir d'un contenant de stockage de matières solides vers un réservoir de dispersion ou de dissolution; le contenant de stockage est muni d'une trémie de déchargement, associée coaxialement à un cône s'élargissant vers le bas, lequel repose, en position fermée, par son côté inférieur, sur la paroi interne de la trémie, et, en position ouverte, est soulevé au-dessus de la paroi de la trémie, de façon à laisser ouvert un passage annulaire, permettant à la poudre solide de s'écouler librement, lorsque le cône est ouvert, vers une pompe à jet liquide fonctionnant avec l'agent dispersant ou le solvant; la poudre est dispersée dans le jet et transportée par celui-ci jusque dans le réservoir de dispersion ou de dissolution; la quantité de solide est dosée à l'aide d'une courbe d'étalonnage, par régulation du temps pendant lequel le cône est ouvert et le réservoir de dispersion ou de dissolution rempli avec l'agent dispersant ou le solvant, en fonction du degré de dilution souhaité.
Klinksiek Bernd
Viets Alan
Wangermann Klaus
Aktiengesellschaft Bayer
Fetherstonhaugh & Co.
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