The Construction and Operation of the Vertical Retort Zinc Plant

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  • 立型蒸溜亜鉛工場の建設と操業
  • タテガタ ジョウリュウ アエン コウジョウ ノ ケンセツ ト ソウギョウ

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With the purpose of rehabilitation and modernization of zinc smelting, the vertical retort- plant was constructed at Miike smelter, and it was put into operation in January 1954. This plant is characterized from the regular process with the following features;<BR>(1) The application of compression spring for the retort binding.<BR>(2) The separate support of the retort upper extension.<BR>(3) The application of AMCO-Recuperator separately installed from the distillation furnace.<BR>The operation result has shown that an average output of 1100 tons of metallic zinc per month from 8 retorts with 97% elimination and 94% recovery has been maintained by firing at 1250°C. The grade of zinc from vertical retort is 99.7-99.9%.<BR>The three zinc smelting processes of horizontal retort, electrolytic zinc and vertical retort are now in operation in parallel at Miike. The smelting cost of the vertical retort process is the cheapest among them.

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