| 摘要 |
The present invention relates to the apparatuses for crushing material and can be used in mining, metallurgical and energy industries. A drum-roll mill comprises a rotating hollow drum which contains a working roll and an additional roll with a rotation drive regardless of the drum, as well as breaker knives and nozzles connected to a source of compressed air. According to the invention, the breaker knives are flat and mounted on an additional roll in parallel to its longitudinal axis in several rows with possibility of automatic displacement in guide slots. The knives are made with stop blocks, and along entire length of additional roll, in parallel to the cutting edges of knives, the air nozzles are in the knives and are connected to the source of compressed air through the axle of additional roll. The invention provides improved performance of the mill. |
