Distribution metering device for a roller mill, roller mill with such a distribution metering device, method for grinding grinding stock, and roller mill comprising a switching cabinet with a cooling system

A distributing and metering device (1) for a roller mill comprising:

• a housing (2) having at least one milling-material inlet (3) and at least one milling-material outlet (4),
• a feeding roller (5), which is arranged in the housing (2), for metering milling material into a milling gap of the roller mill through the milling-material outlet (4), which roller is rotatable about a feeding roller axis (SA),
• a conveying shaft (6), which is arranged in the housing (2), for distributing milling material along the feeding roller (5), which shaft is rotatable about a conveying shaft axis (FA),
• wherein the conveying shaft axis (FA) is arranged substantially parallel to the feeding roller axis (SA), and
• a first filling level sensor (7), which is arranged in the housing (2), for determining a first milling-material filling level of the housing (2),
• the distributing and metering device (1) further comprises:
• a second filling level sensor (8), which is arranged in the housing, for determining a second milling-material filling level of the housing (2),
• the milling-material inlet (3) and the first filling level sensor (7) are arranged at a first end, that is to say at a first third, of the feeding roller (5) and of the conveying shaft (6), and
• the second filling level sensor (8) is arranged at a second end, that is to say at a last third, of the feeding roller (5) and of the conveying shaft (6).