Strength Enhancement of Oxide Pellet With Organic Binder

Preheated and fired strength of organic binder pellet is not high enough to satisfy the requirement of equipment in pellet production industry in China.Measures of enhancing the strength of preheated and fired oxide pellet with organic binder were put forward in order to solve this problem.The result showed that the strength of preheated and fired pellet was increased by wet grinding and adding additives.The strength of preheated and fired organic binder pellet was 175 N/pellet and 1 494 N/pellet.With wet grinding,it increased to 571 N/pellet and 2 534 N/pellet,while adding additives made it increase to 448 N/pellet and 2 406 N/pellet.With these measures,organic pellet can have the same strength as that of bentonite pellet but the adding quantity is smaller.And the benefit is increased by 0.1 yuan/t.The goal of using organic binder as substitutes for bentonite in order to increase iron grade and benefit is achieved.