一种从铁水脱硫渣中回收钝化镁和钝化钙的方法
By heating the desulfurization slag of molten iron in a heating furnace and separating the upper layer material, combined with air classification and wet screening technology, the problem of unrecovered passivated magnesium and passivated calcium in the desulfurization slag of molten iron has been solved, achieving efficient recovery and resource reuse.
CN116814962BActive Publication Date: 2026-07-17PANZHIHUA GANGCHENG GROUP
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PANZHIHUA GANGCHENG GROUP
- Filing Date
- 2023-06-26
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In existing technologies, the residual passivated magnesium and passivated calcium in molten iron desulfurization slag cannot be effectively recovered, resulting in serious waste of resources.
Method used
By heating the desulfurization slag of molten iron in a heating furnace and making it liquid, the upper material is separated after being heated with the assistance of iron particles. Combined with air classification and wet screening technology, passivated magnesium and passivated calcium are separated and recovered.
Benefits of technology
It achieves efficient recovery of passivated magnesium and passivated calcium, with a recovery rate of 70-80% and a purity of 75-80%, realizing the classified reuse of resources.
✦ Generated by Eureka AI based on patent content.
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Figure CN116814962B_ABST
Abstract
本发明涉及废弃资源回收技术领域，尤其是涉及一种从铁水脱硫渣中回收钝化镁和钝化钙的方法，包括以下步骤：S1、将铁水脱硫渣配加铁粒置于加热炉内加热升温，保持铁水脱硫渣为液态，加热炉内铁下沉渣上浮，铁和渣逐渐分层；S2、将加热炉内的上层物料倒出，缓慢冷却至室温，加热炉内的下层物料为含铁物料；S3、将冷却至室温的上层物料通过风选选出轻飘物料，将剩余的沉积物料用水浸泡后，采用多层筛网进行湿法筛分，分选出不同粒度的物料，并将物料烘干。本发明的方法能够从铁水脱硫渣中回收钝化镁和钝化钙，以便资源分类回收利用。
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