System and method for adjusting a material bed depth in a pulverizer mill

A system for adjusting a depth of a material bed in a pulverizer mill comprising:

• a rotatable bowl having a surface operative to support the material bed while the bowl rotates such that particles of the material bed are pulverized against the surface by one or more grinding rollers of the pulverizer mill;
• an extension ring disposed about a circumference of the rotatable bowl extending away from the surface and operative to define the depth of the material bed with respect to the surface;
• an extension mechanism operative to adjust the extension ring, the extension mechanism including at least one of a hydraulic lift, a pneumatic lift, an electric motor, and a hydraulic motor;
• and
• wherein adjusting the extension ring via the extension mechanism moves the extension ring in relation to the surface so as to adjust the depth of the material bed.

A system for adjusting a depth of a material bed in a pulverizer mill comprising:

• a rotatable bowl having a surface operative to support the material bed while the bowl rotates such that particles of the material bed are pulverized against the surface by one or more grinding rollers of the pulverizer mill;
• an extension ring disposed about a circumference of the rotatable bowl extending away from the surface and operative to define the depth of the material bed with respect to the surface;
• an extension mechanism operative to adjust the rotatable bowl while the rotatable bowl rotates;
• and
• wherein adjusting the rotatable bowl via the extension mechanism moves the surface of the rotatable bowl in relation to the extension ring so as to adjust the depth of the material bed.