| 摘要 |
Mill (1) for crushing a bed of materials by compression and comprising: a horizontal-axis cylinder (2) the interior wall of which is provided with a runway track for a crushing roller (3) placed inside said cylinder, means for driving the cylinder in rotation about its axis at a speed that spins the material outward, said crushing roller (3), means for pressing said crushing roller against the runway track of said cylinder, an inlet (7) for supplying material for crushing and situated at one of the ends of the cylinder and an outlet (8) for crushed material at the other end of said cylinder, means for controlling the movement of the material so that it travels over only a fraction of the length of the cylinder in each revolution and passes between the cylinder and the roller several times before reaching the outlet. According to the invention, the runway track is followed by a downstream lip intended to oppose the flow of the material, situated downstream of said crushing roller in the direction in which the material travels, said downstream lip comprising several elements (4) arranged along an interior perimeter of said cylinder (2). |
