关键词: 预处理技术　高效破碎设备　磨矿设备　节能降耗

Abstract: As a key energy-consuming link in the mineral processing process,the energy efficiency optimization of miner al crushing and grinding is of great significance to the sustainable development of the mining industry.This paper systematically summarizes the progress and industrialization prospects of new crushing and grinding technology and equipment in the links of ore pretreatment,crushing and grinding.In the field of pretreatment,supercritical CO2 comminution technology promotes miner al dissociation through phase change energy release;High-pressure slurry ablation comminution technology achieves selective crushing by making particles collide using high-pressure slurry jets;Microwave-assisted comminution induces microcracks based on dielectric differences;And high-voltage electrical pulse comminution realizes efficient dissociation of coarse particles through the electrical difference of ores.In terms of high-efficiency crushing equipment,the VeRo Liberator achieves selective crushing of ores through high-speed impact;The conjugate anvil hammer mill combines the advantages of impact and laminar comminution to achieve energy conservation and consumption reduction;The HPGR significantly improves the crushing efficiency by using laminar comminution technology,and the industrial application of the direct connection configuration between the high-pressure grinding roll and the tower mill provides a new idea for efficient crushing and grinding of materials;The GRolls achieves efficient crushing through the meshing movement of the "V"-shaped main rotating drive roller and the opposite rotating roller,with the synergistic effect of pulse forces and shear forces;The EDS multi-shaft mill improves comminution effec tiveness via high-frequency impact energy transfer.For grinding equipment,The vertical roller mill realizes energy efficiency optimization through the extrusion grinding of the grinding roller and grinding disc as well as air classification;The vertical stirred mill (VPMTM/HIG mill) extends application boundaries via structural innovation,enabling not only ultrafine grinding but also the processing of -6 mm coarse feed,thereby supporting combined coarse grinding and high-efficiency crushing configura tions.Such innovative technology and equipment not only achieves a significant reduction in energy consumption,but also creates ideal conditions for the subsequent separation process by optimizing mineral dissociation characteristics.Although some equipment is still in the conceptual or experimental stage,it has shown good energy efficiency advantages and application potential.

Key words: pretreatment technology,high-efficiency crushing equipment,grinding equipment,energy conservation and consumption reduction