| 摘要 |
FIELD: mining. ^ SUBSTANCE: invention refers to the sphere of mining industry and may be used in secondary crushing of kimberlites. Method includes exposure of lump to various physical and technical processes, including thermal ones. Crushing of lump down to required grain size composition is carried out continuously by deepening narrow cuts, without development of any mechanical stress in kimberlite, by application of laser heating of removed material, in which diamond crystals in kimberlite thickness do not experience any loads, and diamonds that got into processing zone are heated to the temperature, which is safe for their quality and is not higher than 200250C. ^ EFFECT: provision of partial load mode for diamond crystals in secondary crushing of kimberlites in process of their breaking in open pit. ^ 1 tbl, 3 dwg |
