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The Iron Age 1883-01-18: Vol 31 Iss 3

1883 Reed Business Information US

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83, ES ae > a = 8, The Iron Age >. eee A Review of the Hardware, Iron and Metal Trades. Published every Thursday Morning by Davin Witx1ams, No. 83 Reade Street, New York. Entered at the Post Office, New York, as Second-Class Matter, Vol. XXXII: No. 3. The Siemens Direct Process. In a recent paper bearing the above title, Mr. James Davis, of the new steel works at Landore, England, embodies the result of a long practical experience of the working of the Siemens direct process in making wrought iron direct from the ore. The ore to be smelted is broken up into fragments not exceeding the size of peas or beans, and to it is added lime or other fluxing material | in such a proportion that the gangue con- | tained in the ore and flux combines, with only a little oxide of iron, into fluid slag. A | charge, say 20 cwt. of ore, 12 cwt. of roll | or hammer scale, together with 6 cwt. of soft free coal well mixed together, is charged into the furnace when fully heated. The coal is charged with the ore. During the first hour very little gas is required, but after this the rotative velocity is increased, to- gether with the heat, for a short time. At this stage a rapid reaction is the result, t…

Citation

The Iron Age 1883-01-18: Vol 31 Iss 3. Reed Business Information US. 1883.