The production practice indicated that pellets produced with Peru and Brazil CVRD and GPRJ concentrates have higher strength, but those produced with PF concentrates have slightly lower strength.

• 生产实践表明,配用秘鲁精粉、巴西CVRD精粉、巴西卡拉加斯精粉均可生产出强度较高的球团矿,而配用PF精粉生产出的球团矿强度次之。