Factory and industrial management . n by tlie timeit reaches the far end of the suction box. The sintered ore is stripped from the drum and automaticallv discharsred bv the pointed grizzly. .\moi tjiU 864 rilE ENGINEERING MAGAZINE. The drum type of machine has been found in practice to be oneof the most convenient for ordinary ores, but the same sequence ofoperations may be accompHshed in other ways. The inventors of theprocess have used various other mechanical means for carrying outthe sintering. The cost of operating this sintering process is considerably lessthan that of the pot-roas
Factory and industrial management . n by tlie timeit reaches the far end of the suction box. The sintered ore is stripped from the drum and automaticallv discharsred bv the pointed grizzly. .\moi tjiU 864 rilE ENGINEERING MAGAZINE. The drum type of machine has been found in practice to be oneof the most convenient for ordinary ores, but the same sequence ofoperations may be accompHshed in other ways. The inventors of theprocess have used various other mechanical means for carrying outthe sintering. The cost of operating this sintering process is considerably lessthan that of the pot-roasting it was designed to supersede. It is sim-ple to openate and is under complete control. The range of composi-tion of material from which a suitable sinter can be made is wideras to silica, iron, sulphur, etc., than the limits imposed by the require-ments of proper blast-furnace charges. No lime, limestone, or othersubstances are required to be mixed with the ore to be treated and iteffectively handles the finest slime SINTER CARRYING 50 PER CENT. LEAD, MADE FROM GALENA CONCENTRATES WITHOUx LIME. This process converts fine ore and slime into hard sintered massessuitable for smelting in blast furnaces. It also promotes economyin blast-furnace fuel, and largely increases the capacity of the blastfurnace by such reduction in fuel. The sintering of the ore reducesthe loss of metals by limiting the amount of flue dust. This methodof sintering enables fine ores suitable for pyritic smelting to be suc-cessfully treated in isolated districts in which many of the olderprocesses could not be utilized on account of the cost of the plant andother conditions. THE METALLURGY OF LEAD AND ZINC. 865 The sulphur gases evolved from the ore treated on the drum arehighly concentrated and can be easily controlled. It is consequentlypossible to utilize them for conversion into acids and other chemicalcompounds or to render them innocuous. The process readily lends itself to the solution
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Keywords: ., bookcentury1800, bookdecade1890, booksubj, booksubjectengineering
