辊压机终粉磨系统在生产钢铁渣微粉上的应用

Application of the Roller Press Final Grinding System in the Production of Blast Furnace Slag and Steelmaking Slag Micropowder

简述了几种常见的钢铁渣微粉的生产技术,介绍了天津水泥工业设计研究院有限公司开发的邦信建材有限责任公司年产30万吨矿渣微粉辊压机终粉磨系统和中泰建材有限公司年产60万吨矿渣微粉辊压机终粉磨系统,邦信项目在产量为50~55t/h(干基)时,系统电耗<35kWh/t,中泰项目产量为86.6t/h(干基)时,系统电耗34.69kWh/t。辊压机终粉磨系统在粉磨钢铁渣时,较辊磨系统效率更高,系统电耗更低,在运行中能及时除去金属铁,减轻了辊面的磨损,辊面的修复费用亦比辊磨低二分之一左右。

This paper summarizes several kinds of popular production technology of blast furnace slag and steelmaking slag micropowder, and introduces the final grinding system of roller press(RP), which developed by Tianjin Cement Industry Design & Research Institute Co., Ltd. and used for 300 kt/a slag micropowder project of Bangxin Building Materials Co.,Ltd. and 600 kt/a slag micropowder project of Zhongtai Building Materials Co., Ltd. The output of Bangxin project is 50~55 t/h(dry basis) and power consumption of the system is less than 35 kWh/t. The output of Zhongtai project is 86.6 t/h(dry basis)and power consumption of the system is 34.69 kWh/t. Compared with the vertical roller mill, the final grinding system of RP is more efficient in grinding blast furnace slag and steelmaking slag, and the power consumption is lower. In addition, the metal iron can be removed in time of production,reducing the wear of the roller surface, the repair cost of the RP is about one-half lower than vertical roller mill.