Liquid or pulp aeration device

C - Chemistry – Metallurgy – 22 – B

Patent

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Details

C22B 1/00 (2006.01) B05B 1/00 (2006.01) B05B 7/00 (2006.01) B05D 1/02 (2006.01) C23C 18/12 (2006.01)

Patent

CA 2661140

"LIQUID OR PULP AERATION DEVICE" that projects liquid or pulp (P) through a spreading nozzle on a chain curtain (C) and captures air bubbles from the liquid or pulp (P) while the fluid outflows through the curtain links (C) by gravity forming films by virtue of an interaction of the surface strain and wettability between the three surfaces in question. As far as the outflow is concerned, these films end up interacting between themselves capturing the remaining air between them, thus forming profuse bubbles, resulting in the formation of liquid or foaming pulp (P) by virtue of the chain discharge (C).

Dans le cadre d'un processus de lixiviation de minerai en tas pour l'obtention de métal à l'aide de l'énergie solaire, on utilise un dispositif d'aération de liquide ou de pâte consistant à projeter du liquide ou de la pâte (P) via une buse d'étalement sur un rideau de chaînes (C) et à capturer des bulles d'air présentes dans le liquide ou dans la pâte (C) pendant l'écoulement par gravité du fluide à travers les maillons du rideau (C) où il forme des films par interaction des contraintes de surface et la mouillabilité entre les surfaces en question. Concernant l'écoulement, ces films finissent par interagir entre eux et à capturer l'air restant entre eux, ce qui se traduit par la formation profuse de bulles et, du coup de liquide ou d'une pâte mousseuse (P).

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