Modular pulverizer

A pulverizer comprising:

• a top having an inlet;
• a bottom discharge portion having an outlet offset from the top;
• a modular drum having a plurality of drum panels each extending between the top and the bottom discharge portion and connected together along lateral sides to define a perimeter of the modular drum;
• and
• a drum liner disposed inside the modular drum and configured to protect the drum panels from impact, the drum liner including a plurality of drum liner portions separated in a vertical direction by seams, each drum liner portion being independently detachable from the other drum liner portions;
• a plurality of shelves, wherein at least one shelf covers each seam, each one of the at least one shelf connected to the modular drum along an upper end and extending downwardly relative to a horizontal direction into the drum for directing flow inside the pulverizer;
• and
• a rotating shaft mounted within the modular drum and having radially extending arms creating flow currents within the pulverizer for reducing a size of product input fed into the inlet and producing a size reduced material that is discharged at the outlet,
• wherein the bottom discharge portion is distinct from the modular drum and is secured thereto, the bottom discharge portion including a curved substantially annular inner surface defining a substantially cylindrical bottom cavity in communication with an interior of the modular drum,
• wherein the plurality of drum panels each including a first planar panel portion and a second planar panel portion disposed adjacent, and angled relative to, the first the planar panel portion,
• wherein each drum panel has lips, the lips of adjacent drum panels cooperating together to provide a location for connecting the adjacent drum panels together, wherein the lips extend inwardly into the modular drum at an obtuse angle respectively relative to the first and second planar panel portions.

A pulverizer comprising:

• a top having an inlet;
• a bottom discharge portion having an outlet offset from the top in a vertical direction;
• a plurality of modular drum panels each extending between the top and the bottom discharge portion and connected together along lateral sides to define a circumference of a pulverizing chamber along inner walls;
• and
• a plurality of drum liner portions attached to the inner walls of the plurality of modular drum panels and configured to protect the drum panels from impact, each of the plurality of drum liner portions being independently detachable, the plurality of drum liner portions being separated in the vertical direction by seams;
• a plurality of shelves each connected to the inner walls of the plurality of modular drum panels and extending downwardly relative to a horizontal direction into the pulverizing chamber for directing flow inside the pulverizer, wherein at least one shelf covers each seam between the drum liner portions;
• and
• a rotating shaft mounted within the modular drum and having radially extending arms creating flow currents within the pulverizer for reducing a size of product input fed into the inlet and producing a size reduced material that is discharged at the outlet,
• wherein the bottom discharge portion is distinct from the modular drum and is secured thereto, the bottom discharge portion including a curved substantially annular inner surface defining a substantially cylindrical bottom cavity in communication with the pulverizing chamber defined by the modular drum panels,
• wherein the plurality of drum panels each including a first planar panel portion and a second planar panel portion disposed adjacent, and angled relative to, the first the planar panel portion,
• wherein each drum panel has lips, the lips of adjacent drum panels cooperating together to provide a location for connecting the adjacent drum panels together, wherein the lips extend inwardly into the modular drum at an obtuse angle respectively relative to the first and second planar panel portions.