一种超细粒铁精矿球团矿及其制备方法
By pre-agglomerating ultrafine iron concentrate and adding multifunctional additives, the pellet structure is regulated, which solves the problems of uneven strength and poor reducibility of ultrafine iron concentrate pellets, and improves the mechanical strength and smelting performance of the pellets.
CN117845048BActive Publication Date: 2026-07-17ANSTEEL GROUP MINING CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANSTEEL GROUP MINING CO LTD
- Filing Date
- 2023-12-21
- Publication Date
- 2026-07-17
Smart Images
Figure SMS_1
Abstract
本发明针对超细粒铁精矿制备高品质球团矿存在强度不均匀、还原性差的问题，提供了一种超细粒铁精矿球团矿及其制备方法。本发明的超细粒铁精矿球团矿，包括超细粒铁精矿，团聚剂，复合粘结剂和多功能添加剂；所述超细粒铁精矿包括磁铁精矿、赤铁精矿中的至少一种，粒度满足：小于0.074mm粒级占质量百分比95％以上，且小于0.030mm粒级占质量百分比不低于75％。本发明的方法通过部分超细粒铁精矿预先团聚长大优化混合料粒度组成，并耦合具有改善球团孔隙率、促进铁氧化物结晶长大等多功能添加剂同步改善球团成球、干燥、固结性能，从而实现强化难处理超细粒铁精矿制备优质球团矿。
Need to check novelty before this filing date? Find Prior Art