| 摘要 |
The subject of the invention is a method for milling of material with different grain size and/or with different range of grindability from 30 up to 90 according to Hargrowe (Hg) in more, mutual consequential milling steps and with using of middle-pressure roll presses. According to the invention, the milled material is gradually pre-formed, pre-milled and calibrated as to height and finally after-milled, whilst thrust of milling rolls in separate steps is increasing and dimension of rest slots are, on the contrary, gradually decreasing. Further subject of the invention is a definition of advantageous choice of material properties, entering different phases of milling, expressed either in stage of their grindability and either in range of their grain size. |
