File:Tourangin's direct reduction furnace.png
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Français : Procédé de réduction directe breveté par Ernest Tourangin (brevet US.268.840, 1er mai, 1888). Le minerai est chargé sans combustible dans la chambre centrale B. Il est réduit par un flux de monoxyde de carbone chaud arrivant par les chambres D et D' (ce gaz y est produit par une combustion incomplète de charbon/coke/etc.). Les gaz s'échappant au sommet de B (le gueulard) sont récupéré pour chauffer le vent. Les chambres C et C' sont remplies de charbon de bois et de ferrailles, ces dernières désulfurant le monoxyde de carbone. Le fer est refroidi dans les conduits F. Selon Howe, qui ne cite pas de concrétisation de ce procédé, un tel four ne peut être industriel, son bilan thermique étant défavorable. Ce four est très proche du four de Gurlt.
English: Direct reduction process patented by Ernest Tourangin (patent US.268.840, May 1st, 1888). The ore is charged without solid fuel in central chamber B. It is reduced by a hot stream of carbon monoxyde coming from D and D' chambers (this gas is produced here by a partial combustion of coal/coke/etc.). The waste gas escaping from the top of B are burned to heat the blast. The chamber C and C' are filled with charcoal and scrap iron, the latter serving to desulphurize the gas. The spongy iron is cooled in the F legs. According to Howe, who don't cite realization of this process, such a furnace can not be an industrial appartus, due to its bad heat balance. This furnace is pretty similar to Gurlt's furnace. |
| Date | |
| Source | The metallurgy of steel, p. 276 |
| Author | Henry Marion Howe (1848-1922) |
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| current | 18:56, 11 August 2015 | | 752 × 506 (343 KB) | Borvan53 (talk | contribs) | User created page with UploadWizard |
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