Raw mill

Raw mill means a ball or tube mill, vertical roller mill or other size reduction equipment, that is not part of an in-line kiln/raw mill, used to grind feed to the appropriate size. Moisture may be added or removed from the feed during the grinding operation. If the raw mill is used to remove moisture from feed materials, it is also, by definition, a raw material dryer. The raw mill also includes the air separator associated with the raw mill.

Source

40 CFR § 60.2265

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Scoping language

Terms used but not defined in this subpart are defined in the Clean Air Act and subpart A (General Provisions) of this part.

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