Method and plant for the production of zinc dust
AssigneeZinchem, A Division of Zimco Group (Pty) Ltd.
InventorsMichael Hanneman, Roy William Heslop
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Abstract
A method of production of Zinc dust, which includes melting Zinc products in a melting furnace on a semi-continuous basis, transferring at least a part of the molten Zinc products to a vaporizing furnace, vaporizing the molten Zinc in the vaporizing furnace into Zinc vapour on a substantially continuous basis, transferring Zinc vapour from the vaporizing furnace to a condenser, and condensing the Zinc vapour to form Zinc dust.
Claims15
-65. (canceled)
A method of production of Zinc dust, which includes pre-heating a melting furnace to a temperature of between 400° C. to 700° C.;
- melting Zinc products in the melting furnace on a semi-continuous basis;
- transferring at least a part of the molten Zinc products to a vaporizing furnace;
- vaporizing the molten Zinc in the vaporizing furnace into Zinc vapour on a substantially continuous basis;
- transferring Zinc vapour from the vaporizing furnace to a condenser;
- and
- condensing the Zinc vapour to form Zinc dust.
A Zinc dust production plant, which includes
- a vertical crucible melting furnace into which Zinc products are receivable;
- a vertical crucible vaporizing furnace into which molten Zinc products from the melting furnace are receivable via a dip tube with a top end of the dip tube being in flow communication with molten material transport means and a bottom end of the dip tube opening into a lower portion of the vaporizing crucible;
- and a condenser in fluid flow communication with the vaporizing furnace for receiving Zinc vapour into the condenser, the condenser operable to condense the vaporized Zinc into Zinc dust.
Dependencies are inferred from the claim text.