Apparatus for pulverizing and sorting municipal waste
AssigneeKeishin Matsumoto, President of Agency of Industrial Science and Technology
InventorsKanichi Ito, Yoshio Hirayama, Ryoichi Takeuchi, Masao Nomoto
Life of this patent
Estimating the term…
Abstract
An apparatus and a method for processing municipal waste with increased processing capacity are provided. The apparatus includes at least a cylindrical screen having ridge projections on the inner surface thereof and a group of beaters mounted on a central shaft extending axially through the cylindrical screen. In carrying out the method, the municipal waste charged into the cylinder receives powerful beating and shearing due to the interaction caused by the relative rotation between the tips of the beaters and the ridge projections thereby remarkably increasing the processing capacity.
Claims16
An apparatus for size-reducing and sorting waste, said apparatus comprising:
- a hollow cylindrical screen;
- a plurality of elongated ridge-like projections on the inner surface of said screen;
- a rotatable shaft longitudinally fitted through said cylindrical screen;
- a plurality of beaters mounted on said shaft for rotation therewith said beaters extending radially from said shaft and opposing said projections inside said cylindrical screen;
- anti-entangling means connected to said beaters and said shaft for preventing elongated constituents of waste being treated from entangling about said shaft;
- first rotating means connected to said shaft for rotating said shaft within said cylindrical screen;
- and
- second rotating means contacting said cylindrical screen for rotating said screen relative to said shaft therethrough.
An apparatus for size-reducing and sorting waste, said apparatus comprising:
- a hollow first cylindrical screen having inlet and discharge ends;
- a plurality of first ridge-like projections fixed to the inner surface of said first screen;
- a hollow second cylindrical screen axially aligned with the discharge end of said first screen and having inlet and discharge ends, said inlet end being aligned with the discharge end of said first screen;
- a plurality of second ridge-like projections fixed to the inner surface of said second screen;
- a rotatable shaft extending longitudinally through said first and second screens;
- a plurality of beaters mounted on said shaft for rotation therewith, said beaters extending radially from said shaft and opposing said projections inside said first and second screens;
- anti-entangling means connected to said beaters and said shaft for preventing elongated constituents of the waste being treated from entangling about said shaft;
- first discharge means beneath said first screen for removing the treated waste passing through the openings in said first screen;
- second discharge means beneath said second screen for removing the treated waste passing through the openings in said second screen;
- third discharge means at the discharge end of said second screen for removing the waste from said second screen which does not pass through the openings therein;
- first rotating means contacting said first and second screens for rotating said first and second screens relative to said shaft therethrough;
- and
- second rotating means connected to said shaft for rotating said shaft within said hollow screens.
Dependencies are inferred from the claim text.