Comparison on Process and Operational Parameters of HPGR in the Field of Pellet Pretreatment and Metal Ore Beneficiation
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摘要:
高压辊磨机能量利用率高，目前已在水泥行业、金属矿山、冶金球团等领域广泛应用。结合当前研究成果及工业现场数据，本文对比了高压辊磨机在金属矿山和球团预处理行业中的工艺流程，以及辊面比压力、辊面线速度、辊缝几个工艺参数，为高压辊磨机在金属矿山和球团预处理应用中工艺参数的选择提供参考。
Abstract:The high pressure grinding rolls (HPGR) is an energy-efficiency comminution equipment and has been commercialized in cement industry, metal mines, metallurgical pellets and other fields. Based on the current research results and industrial data, this paper compares the process flow of high-pressure roller mill in metal mine and pellet pretreatment industry, as well as operational parameters such as specific pressure of, roll linear speed and rolls gap. This will provide a reference when selecting operational parameters of HPGR for the metal mine and pellet pretreatment.
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Key words:
- high pressure grinding rolls (HPGR) /
- metal mines /
- pellet pretreatment /
- specific pressure /
- roll speed /
- roll gap
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表 1 几个金属矿山所采用的高压辊磨机辊面比压力参数
Table 1. Specific pressure of HPGR in some metal mines
公司 辊径/mm 辊宽/mm 辊面压力N/mm2 给矿粒度/mm 排矿粒度/mm SINM公司 1 700 1 800 5 -25 P65=1.6 CHM公司 1 700 1 800 5 -65 P80=6.5 研山铁矿 1 700 1 800 4.08 -50 -10 和尚桥选厂 1 500 1 500 4.5 -30 3 太和铁矿 1 500 1 700 5.1 F30=10 P70 < 10 凹山选矿厂 1 700 1 400 4.0 -20 -3 秘鲁Cerro Verde铜金矿 2 400 1 700 4.3 — — 
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表 2 部分球团厂所采用的高压辊磨机辊面比压力参数表
Table 2. Specific pressure of HPGR in some pelletizing plants
公司 辊径/mm 辊宽/mm 辊面压力/(N·mm-2) 细度提升值/(cm2·g-1) 巴西CVRD/HISPANOBRAF 1 400 1 400 3 300 印度Kudremukh公司 1 400 1 100 1.9 450 巴西CVRD/VITORIA 1 400 1 600 3 400 美国Iron Dynamics 1 400 800 2 400 武钢程潮铁矿 1 200 500 3.8 210
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