Dwight Lloyd Plant in the course of construction, Mount Isa, 1930

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Where: Queensland, Mount Isa, Australia

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When: Unknown

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Location: Mount Isa, Queensland.

View the original image at the State Library of Queensland: onesearch.slq.qld.gov.au/permalink/61SLQ_INST/dls06p/alma...

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Owner: State Library of Queensland, Australia
Source: Flickr Commons
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    • 28/Feb/2023 10:24:25

    Dwight Lloyd Sinter Plant, right, construction. April/May 1930. The sinter plant is the first stage of the smelting process. The lead concentrate for the mill, the opposite of this hill, was transferred to the Filter Plant, the higher building towards the middle of the image. Here the water was extracted and then the dried concentrate, around 28% lead was mixed with coke and limestone and then made into cakes by a pug mill. These cakes were then roasted on a travelling grate in the sinter plant. By "cooking" the cakes the sulphur in the concentrate was burnt out. This left lead sinter. This was then dumped into bins and an electric charge car loaded up the other "ingredients" as well the sinter and travelled to the furnaces and dumped the load into the top of the blast furnaces where the crude lead was created. The "sintering machine" was manufactured by Morrison and Bearby in Newcastle N.S.W.