Process for producing foamed slag

Process for producing foamed slag

  • CN 102,089,446 A
  • Filed: 07/03/2009
  • Published: 06/08/2011
  • Est. Priority Date: 07/07/2008
  • Status: Active Application
First Claim
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1. be used on stainless steel melt, producing the method for foam slag at electric arc furnace, wherein the mixture of metal oxide and carbon is dosed in the stove, under slag at metal-slag at the interface, by the carbon reduction metal oxide, and it is inhomogeneous that Wingdale becomes calorifics, and the gas that occurs causes bloating because of the formation of bubble, be characterised in that, with moulded products for example the mixture of dosing that adds of agglomerate or pill form contain basic components from following group:

  • Ferriferous oxide (Fe 2O 3, Fe 3O 4), be in as burning slag, dried converter dust or dried EAF/LF flue dust, any form of wet converter dust (residue) Coke, graphite, carbon (C)The ballast material of all stainless steel types is in the form of FeCr, ferrite iron and steel scrapThe ballast material of stainless austenite and duplex steel type is in FeCr, ferrite iron and steel scrap, austenite iron and steel scrap, duplex iron and steel scrap, nickel oxide (NiO x) form Wingdale (CaCO 3) Randomly,Unslaked lime or fluorite (CaO and CaF 2) Aluminum oxide (Al 2O 3) And tackiness agent is for example;

    SyrupCementOr other tackiness agent.

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