Method and apparatus for continuously mixing battery pastes

Details Method and apparatus for continuously mixing battery pastes Method and apparatus for continuously mixing battery pastes

H - Electricity

01

M

H01M 4/20 (2006.01) H01M 4/14 (2006.01) H01M 10/06 (2006.01) H01M 10/12 (2006.01)

Patent

CA 2654595

A process and apparatus for continuously mixing and applying paste to battery grids for use in lead-acid battery systems, in which particulate lead oxide, water and sulphuric acid are reacted in an elongated mixer having a mixing to conveying ratio of about 65 : 35 to 80 : 20 with controlled reaction temperature for an exit product temperature in the range of above 60°C to about 80°C. Additives including reinforcing fibres can be added in an amount up to 0.6 wt% of the lead oxide and carbon and graphite powder can be added in an amount up to 6 wt% of the lead oxide.

L'invention concerne un procédé et un appareil pour mélanger en continu et appliquer une pâte à des grilles de batteries pour une utilisation dans des systèmes de batteries plomb-acide. Selon ce procédé, de l'oxyde de plomb particulaire, de l'eau et de l'acide sulfurique sont mis en réaction dans un mélangeur allongé présentant un rapport mélange sur transport allant d'environ 65:35 à 80:20 à une température de réaction régulée pour obtenir une température du produit sortant comprise entre plus de 60 °C et environ 80 °C. Des additifs, par exemple des fibres de renforcement, peuvent être ajoutés dans une quantité maximale de 0,6 % en poids de l'oxyde de plomb, et de la poudre de carbone et de graphite peut être ajoutée dans une quantité maximale de 6 % en poids d'oxyde de plomb.

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