铁水脱硫方法

By adding limestone to molten iron at high temperature and controlling the rotation of the stirring head to form a vortex, the amount of desulfurizing agent used can be calculated, thus solving the problems of desulfurizing agent waste and high cost in the KR desulfurization method. This achieves the goal of reducing the amount of desulfurizing agent used and lowering costs while ensuring the desulfurization effect.

CN117660727BActive Publication Date: 2026-07-17HENGYANG RAMON SCI & TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HENGYANG RAMON SCI & TECH CO LTD
Filing Date
2023-11-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing mechanical stirring desulfurization method (KR desulfurization) is prone to waste of desulfurizing agent and high cost, mainly due to the reliance on manual experience, which leads to excessive use of desulfurizing agent.

Method used

When the temperature of the molten iron to be desulfurized is higher than the first preset temperature, a first amount of limestone is added and the stirring head is controlled to rotate. After a vortex is formed, a second amount of desulfurizing agent is added. The stirring head is controlled to stir and desulfurize according to the stirring parameters. The total amount of desulfurizing agent is reduced by calculating the amount of limestone and desulfurizing agent.

Benefits of technology

By reducing the agglomeration of desulfurizing agents, the desulfurization effect can be improved, the amount of desulfurizing agent used can be reduced, and the cost can be saved. At the same time, the decomposition products of limestone can be used to replace part of the desulfurizing agent, thereby improving the utilization rate of the desulfurizing agent.

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Abstract

本申请涉及一种铁水脱硫方法,该方法包括:在待脱硫铁水的温度高于第一预设温度的情况下,向待脱硫铁水中加入第一用量的石灰石;在加入的第一用量的石灰石融化的情况下,控制搅拌头进行旋转;在待脱硫铁水中形成旋涡的情况下,向待脱硫铁水中加入第二用量的脱硫剂;获取搅拌参数,并根据搅拌参数控制搅拌头进行搅拌脱硫。这样,可以在待脱硫铁水的温度高于第一预设温度的情况下,向待脱硫铁水中加入第一用量的石灰石来降低待脱硫铁水的温度,从而降低脱硫剂团聚现象,提高脱硫剂的脱硫效果;并且,由于石灰石的分解产物能够起到脱硫作用,因而可以代替部分脱硫剂,进一步减少了脱硫剂的用量,达到节约成本的目的。
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