Hopper for shredding fibrous material

A system for shredding fibrous material comprising:

• a cart comprising a cart left side, a cart right side, a cart length extending from the cart left side to the cart right side, a cart front, a cart rear, a cart width extending from the cart front to the cart rear, a cart top, a cart bottom, and a cart height extending from the cart top to the cart bottom;
• a handle extending upwardly from the cart bottom and located on the cart right side;
• a plurality of lockable caster wheels extending downwardly from the cart bottom and located on the cart right side, the plurality of lockable caster wheels configured to allow the cart to be moved along the ground;
• a pair of left wheels extending downwardly from the cart bottom and located on the cart left side, the pair of left wheels configured to allow the cart to be moved along the ground;
• a pair of front forklift access apertures located on the cart front and a pair of rear forklift access apertures located on the cart rear and aligned with the front forklift access apertures, the front and rear forklift access apertures configured to allow forks of a forklift to extend across the cart;
• a hopper located above the cart bottom and comprising a left wall, a right wall, a bin length extending from the left wall to the right wall and parallel to the cart length, a front wall, a rear wall, a bin width extending from the front wall to the rear wall and perpendicular to the bin length and parallel to the cart width, a bottom, a top, a height extending from the bottom to the top and perpendicular to the bin length and bin width and parallel to the cart height, the front, rear, left and right walls separating a hopper interior from a hopper exterior;
• a pair of augers located in the hopper interior and configured to shred fibrous material;
• an auger motor configured to rotate the augers in opposite directions and at different speeds;
• a hopper interior outlet located below the pair of augers in the hopper interior;
• and
• a blower comprising a blower motor configured to blow shredded fibrous material received from the hopper interior outlet out a system outlet, the system outlet in communication with the hopper interior outlet and configured to attach to a hose,
• wherein the front wall of the hopper comprises a rotatable shelf, the rotatable shelf configured to rotate from a deployed configuration in which the rotatable shelf is oriented horizontally to an inbound configuration position in which the rotatable shelf rotates toward the hopper interior.