Nozzle for injecting gas containing oxygen into a pig iron device having an injector insertion pipe

Nozzle for injecting gas containing oxygen into a pig iron device having an injector insertion pipe

  • CN 102,272,335 A
  • Filed: 11/05/2009
  • Published: 12/07/2011
  • Est. Priority Date: 11/28/2008
  • Status: Active Application
First Claim
Patent Images

1. be used for the nozzle (4) of oxygen containing gas spray feed to pig iron production unit, wherein said nozzle (4) has at least one gas passage, and wherein said nozzle (4) is characterised in that:

  • -an injecting type plug-in mounting pipe (5) that preferably can be inserted in the gas passage of described nozzle (4) so is set in the gas passage of described nozzle with changing;

    So that exist one to surround intermediate cavity (7) described injecting type plug-in mounting pipe (5), between the outer wall of the wall of described gas passage and injecting type plug-in mounting pipe (5) in the whole length of described injecting type plug-in mounting pipe (5);

    Wherein said injecting type plug-in mounting pipe (5) has spacing holder (10);

    Described spacing holder under installment state with described injecting type plug-in mounting piping support on the wall of described gas passage-described jet-type plug-in mounting pipe (5) is by the refractory materials manufacturing,-described jet-type plug-in mounting pipe (5) extends to the end face (11) of outlet of the contained gas passage of described nozzle at least,-and be connected with the ingress pipe that is used for oxygen containing gas (6) by the chamber that described jet-type plug-in mounting pipe (5) surrounds,-and the intermediate cavity (7) between the outer wall of the wall of described gas passage and described jet-type plug-in mounting pipe (5) be connected with the transport pipe that is used for shielding gas (8), or be used for oxygen containing transfer of gas pipeline and be connected.

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