| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to high-pressure roll crusher rolls for grinding in material layer. Grinding roll comprises multiple shaped elements with their one section fitted into roll body bores and remaining portion extending above roll body surface. With roll new state, bores in roll body subjected to different load in certain sections over roll width have different depth while shaped elements have different length. Invention covers method of reconditioning used grinding roll and its versions. ^ EFFECT: longer life, low-costs reconditioning. ^ 7 cl, 4 dwg |
