Machine for crushing material

A machine for crushing material remains, which includes in combination

• (a) a storage container (20-26) for the material to be crushed,
• (b) a lower crushing roller (36) located close to a base of the storage container,
• which roller (36) comprises a plurality of crushing tools (32) projecting radially from a crushing roller core (34), and
• which cooperates with a first stationary crushing rack (30),
• (c) a first screen (38) disposed adjacent the lower crushing roller (36) through which crushed remains pass,
• (d) a collecting chamber (46) located below the first screen (38) for material chips produced at the time of crushing,
• (e) a slide (48) located above a base plate (44) of the storage container which is adapted to be moved across said base plate (44) intermittently towards said lower crushing roller (56) to initially feed material to the lower crushing roller (36),
• (f) an upper crushing roller (56) above said lower crushing roller (36) which
• is mounted on a crushing roller core (58) and supports a plurality of radially projecting crushing tools (60), and
• cooperates with a second stationary crushing rack (62),
• (g) an active peripheral region of the upper crushing roller (56) having a speed component directed towards said lower crushing roller (36), and
• (h) a second screen (66) positioned adjacent said upper crushing roller (56) through which crushed remains pass, and
• (i) a space behind the second screen (66) that is also connected to the collecting chamber (46),
• said upper crushing roller (56) thus crushing material not crushed by the lower crushing roller (36).