Development of injection of reduction gas into the blast ... - klimazwei
Development of injection of reduction gas into the blast ... - klimazwei
Development of injection of reduction gas into the blast ... - klimazwei
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upper belly area and <strong>the</strong> installation <strong>of</strong> so called hot <strong>gas</strong> generators (HGG) for <strong>the</strong><br />
production and <strong>injection</strong> <strong>of</strong> hot reducing <strong>gas</strong>.<br />
2. BF-Process with <strong>injection</strong> <strong>of</strong> hot reducing <strong>gas</strong><br />
Several <strong>the</strong>oretical and operational stages were carried out for <strong>the</strong> modification <strong>of</strong><br />
<strong>the</strong> BF-process. The procedure <strong>of</strong> investigation is listed as follows.<br />
� definition <strong>of</strong> <strong>the</strong> required consumption <strong>of</strong> <strong>the</strong> reducing <strong>gas</strong> (equilibrium<br />
calculations)<br />
� CFD calculation for determination <strong>of</strong> expectable penetration depth <strong>of</strong> <strong>the</strong><br />
reducing <strong>gas</strong> <strong>into</strong> <strong>the</strong> BF-shaft<br />
� energy and mass balance calculations for BF operation with <strong>injection</strong> <strong>of</strong> hot<br />
reducing <strong>gas</strong><br />
� technical development <strong>of</strong> HGG<br />
� implementation and commissioning <strong>of</strong> HGG at BF 1<br />
� operational trials at BF 1 with <strong>injection</strong> <strong>of</strong> hot reducing <strong>gas</strong><br />
� optimisation <strong>of</strong> <strong>the</strong> <strong>injection</strong> <strong>of</strong> hot reducing <strong>gas</strong> <strong>into</strong> <strong>the</strong> BF shaft<br />
The <strong>injection</strong> <strong>of</strong> hot reducing <strong>gas</strong> was carried out at BF 1 (Arcelor<br />
Eisenhüttenstadt) (figure 1) with a av. production <strong>of</strong> about 1,600 tHM/d.<br />
Figure 1: BF 1 at Arcelor Eisenhüttenstadt<br />
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