中子活化技术提升烧结矿碱度稳定率的应用

Application of neutron activation technology to improve basicity stability index of sinter

针对传统烧结生产控制方式存在的严重滞后和取样代表性差的问题,本文采用无损、全断面的瞬发伽马中子活化分析(PGNAA)技术实时在线检测烧结混合料的元素成分,由于其不受物料粒度以及环境粉尘、蒸汽等因素的影响,烧结厂应用该技术分析仪指导生产之后,碱度稳定率提升了3.98%,一级品率提升了4.64%,解决了传统烧结配料控制的弊端。最后,为了使其更好的应用于生产,对该技术分析仪在使用中的问题进行了总结,并给出了相应的解决措施。

In view of the long lag and poor sampling representativeness of the traditional sintering production control method, a non-destructive and full cross-section prompt gamma neutron activation analysis(PGNAA) technology is used to deal with a real-time online detection to the element composition of sintering mixture.Because the PGNAA technology is not affected by the particle size of materials, environmental dust, steam and other factors, the basicity stability index is increased by 3.98% and the first-grade product rate is increased by 4.64% after using PGNAA technology analyzer to guide the production, which solves the disadvantages of traditional sintering ingredients control.Finally, in order to make it better used in production, the problems in the use of the analyzer are summarized, and the corresponding solutions are given.