Planetary roller mill for processing high moisture feed material

A grinding mill for processing feed material, the grinding mill comprising:

• a vessel assembly mounted to a stationary frame, the vessel assembly comprising a vessel having a vessel wall with an inside surface which defines an interior area of the vessel;
• a material feed supply in communication with the interior area via a feed outlet extending through the vessel wall, the feed outlet having a bottom edge and an upper edge;
• a grinding assembly positioned in the vessel, the grinding assembly comprising:
• a grinding ring being in fixed relation to the vessel assembly and having an axially upward facing surface and an inwardly facing grinding surface;
• and
• a plurality of grinding rollers rotatably mounted relative to the grinding surface, the plurality of grinding rollers being configured to grind the feed material against the grinding surface;
• a cover having a front sloped wall, the cover being positioned over the feed outlet;
• and
• the cover has a top cover end that is secured to the inside surface above the upper edge of the feed outlet and there is a space between the cover and the inside surface above the upper edge of the feed outlet;
• and a ramp removably secured to the inside surface below the feed outlet.

A grinding mill for processing feed material, the grinding mill comprising:

• a vessel assembly mounted to a stationary frame, the vessel assembly comprising a vessel having a vessel wall with an inside surface which defines an interior area of the vessel;
• a material feed supply in communication with the interior area via a feed outlet extending through the vessel wall, the feed outlet having a bottom edge and an upper edge;
• a grinding assembly positioned in the vessel, the grinding assembly comprising:
• a grinding ring being in fixed relation to the vessel assembly and having an axially upward facing surface and an inwardly facing grinding surface;
• and
• a plurality of grinding rollers rotatably mounted relative to the grinding surface, the plurality of grinding rollers being configured to grind the feed material against the grinding surface;
• a ramp having an upper ramp end and a lower ramp end, the upper ramp end being removably secured to the inside surface proximate the feed outlet, the ramp extending downwardly and radially inward from the feed outlet, and the lower ramp end being located radially outward from the grinding surface and radially inward from the inside surface;
• a cover having a front sloped wall, the cover being positioned over the feed outlet;
• and
• a lowermost end of the cover and radially inward located portion of the ramp define an opening that faces downwardly and projects vertically over both a radially innermost segment of the axial upper edge of the grinding ring and a radially outermost segment of the rollers.

A grinding mill for processing feed material, the grinding mill comprising:

• a vessel assembly mounted to a stationary frame, the vessel assembly comprising a vessel having a vessel wall with an inside surface which defines an interior area of the vessel;
• a material feed supply in communication with the interior area via a feed outlet extending through the vessel wall, the feed outlet having a bottom edge and an upper edge;
• a grinding assembly positioned in the vessel, the grinding assembly comprising:
• a grinding ring being in fixed relation to the vessel assembly and having an axially upward facing surface and an inwardly facing grinding surface;
• and
• a plurality of grinding rollers rotatably mounted relative to the grinding surface, the plurality of grinding rollers being configured to grind the feed material against the grinding surface;
• a ramp having an upper ramp end and a lower ramp end, the upper ramp end being removably secured to the inside surface proximate the feed outlet, the ramp extending downwardly and radially inward from the feed outlet, and the lower ramp end being located radially outward from the grinding surface and radially inward from the inside surface;
• a cover having a front sloped wall, the cover being positioned over the feed outlet and extending vertically below the bottom edge of the feed outlet.