由于采用磨矿或直接销售给烧结厂来消化球团返矿的方法无法取得较好的经济效益,本试验以球团返粉为原料进行压团焙烧试验,考察了混合料水分、除尘灰配比、粘结剂添加量、成型压力、焙烧温度、焙烧时间对制备球团矿的影响。结果表明:在混合料水分10%、返矿∶除尘灰=7∶3、粘结剂添加量9%、成型压力30MPa、焙烧温度1 175℃、焙烧时间15 min的条件下,制备出的氧化球团矿能够满足高炉冶炼要求,实现了球团返粉的简单高效利用。 As the use of grinding or direct sales to the sinter plant to digest pellet return method can not get better economic benefits, the test pellet back to the raw material for the pressure-mass roasting test investigated the mixture moisture, dust and ash Than the amount of binder, forming pressure, calcination temperature, calcination time on the preparation of pellets. The results showed that under the conditions of 10% moisture in the mixture, return dust: dusting 7: 3, binder addition 9%, molding pressure 30MPa, calcination temperature 1 175 ℃ and calcination time 15 min, Pellets to meet the blast furnace smelting requirements, the pellet to achieve a simple and efficient use of powder.