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Inert grinding and direct firing in coal burning systems

  • US 4,226,371 A
  • Filed: 04/06/1979
  • Issued: 10/07/1980
  • Est. Priority Date: 04/06/1979
  • Status: Expired due to Term
First Claim
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1. Apparatus for grinding a fuel material in an inert atmosphere and transporting the ground fuel material to fire a consuming unit, said apparatus comprising:

  • grinding means for reducing the fuel material to a transportable and combustible size;

    primary propelling means connected to said grinding means for moving a gaseous transporting medium through said grinding means;

    separator means connected between said grinding means and said primary propelling means for separating the ground fuel material from the gaseous transporting medium and returning the gaseous transporting medium to said primary propelling means;

    secondary propelling means connected between said primary propelling means and said grinding means and a consuming unit, said connection between said secondary propelling means and consuming unit having an inlet for receiving ground fuel material from said separator means for movement by the gaseous transporting medium to the consuming unit;

    inert hot gas producing means having an outlet connected to said grinding means;

    conduit means connecting said inert hot gas producing means with said connection between said secondary propelling means and the consuming unit for supplying inert gaseous transporting medium and ground fuel material to be used in said inert hot gas producing means.

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