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采用正交试验和单因素试验研究粘结剂、粘结剂用量、成型压力、水分加入量等因素对钒钛磁铁矿球团生球性能的影响,得到优化的各因素工艺参数,确定最佳的造球方案。结果表明:有机粘结剂J对生球强度影响最大,有机粘结剂H次之,无机粘结剂P最小;在铁精矿球团中添加有机粘结剂J时,在粘结剂用量2.5%~3.0%、成型压力15~17.5 MPa、造球水分4%~5%的条件下,可以得到质量较好的生球。
The orthogonal test and single factor test were used to study the effect of binder, binder dosage, forming pressure and water addition on the properties of green ball of vanadium-titanium magnetite pellets. The optimized process parameters of each factor were determined Good ball making program. The results show that the organic binder J has the most influence on the green ball strength, the organic binder H is the second, and the inorganic binder P is the smallest. When the organic binder J is added to the iron concentrate pellets, 2.5% ~ 3.0%, forming pressure 15 ~ 17.5 MPa, pelletizing water 4% ~ 5% under the conditions, you can get better quality of the ball.