US 11,376,604 B2 · Method for crushing of grinding material and corresponding mill

Abstract

A method is disclosed for crushing material to be ground with a mill which contains a grinding chamber which is connected to a feed for material to be ground and to an outlet for ground particles, and contains grinding devices for producing particles of the desired fineness from the fed material to be ground, wherein the grinding takes place in a reducing atmosphere which contains a reduction gas. Also disclosed, is a mill having a grinding chamber which is connected to a feed for material to be ground and to an outlet for ground particles, and contains grinding devices for producing particles of the desired fineness from the fed material to be ground, wherein the grinding chamber contains a reducing atmosphere in which the grinding takes place and which contains a reduction gas.

Claims18

Dependent claims

A method for the crushing of grinding material by a mill, which contains a grinding chamber that is connected to a grinding material feed and an outlet for ground particles, and grinding devices for producing particles of a desired fineness from the fed grinding material, said method comprises:

grinding the grinding material in the grinding chamber;
introducing a reduction gas into the grinding chamber during the grinding step to provide a reducing atmosphere;
and
adjusting operating parameters of the mill to ensure a reduction reaction between the reduction gas and ground particles which produces ground particles without oxygen contamination or ground particles with an oxygen contamination lower than that achieved by grinding in a protective gas atmosphere;
wherein the reduction gas includes carbon monoxide or hydrogen.

2 more elements

Dependencies are inferred from the claim text.

Method for crushing of grinding material and corresponding mill

Life of this patent

Method for crushing of grinding material and corresponding mill

Life of this patent

Abstract

Claims18