Liquid Metal Management with the Metaullics MZR
Metaullics Systems, headquartered in Solon, Ohio, USA, is a division of Pyrotek, Inc., based in Spokane, Washington, USA. It has manufacturing and sales offices in over 60 countries worldwide. Pyrotek specialises in the development, manufacture and supply of high temperature materials, technologies and engineered systems for liquid metal management and associated metallurgical applications. Metaullics is a global supplier of molten metal pumps, distribution systems, alloying systems and scrap and waste recovery systems for all sectors of the zinc primary, secondary and die-casting industries. A specialised form of pump is used by continuous galvanisers to remove drosses from the inaccessible snout area in the galvanising pot. This set of two pumps is known as a push-pull system. One pump draws clean metal from the main bath and transfers it over the surface of the metal in the snout towards the second pump, which removes the dross laden surface skims and discharges them back to the open bath for easy dross removal. Metallics also have preferential access to two new technologies of special significance to the continuous galvanising industry. One involves a new generation of alloys designed for long term stability/low solubility in CGL bath chemistries.The other relates to a new self-aligning bearing design for use with submerged rolls on continuous galvanising lines. Similar positions of creative engineering and innovation are being offered by Metaullics in waste material and dross management systems to maximise process metal recovery on all types of galvanising lines. In-house recovery of process metals from materials previously considered as waste is now possible using the Metaullics Zinkoff Recovery unit (MZR). The MZR is a patented unit designed for simple, highly effective in-house recovery of zinc metal from surface skimmings, drosses and wastes generated during galvanising and other metal coating processes. It consists of a process drum designed and fitted to allow free zinc in the waste products to melt and flow to its base when heated in the main process chamber. The drum is tapped when all the free metal available in the waste mix is melted. The liquid zinc is collected in an ingot mould for return to the main production process.
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