一种烧结烟气脱硫灰回配烧结生产的方法和设备系统

By preparing pretreated fuel from desulfurization ash, coke powder, biomass char powder, and ethanolamine aqueous solution, and then mixing it with iron ore powder and other materials to form a lower sintering layer, the reaction conditions are improved by utilizing a flue gas circulation system. This solves the problems of reduced permeability of the sintering layer and excessive flue gas emissions, and achieves efficient resource utilization of desulfurization ash.

CN116607006BActive Publication Date: 2026-07-17ANGANG STEEL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANGANG STEEL CO LTD
Filing Date
2023-04-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the desulfurization ash from sintering flue gas is difficult to utilize as a resource, leading to reduced permeability of the sintering bed and excessive flue gas emissions.

Method used

By preparing pretreated fuel from desulfurization ash, coke powder, biomass char powder, and ethanolamine aqueous solution, and then mixing it with iron ore powder and other materials to form a lower sintering layer, the reaction conditions are improved by using a flue gas recirculation system to reduce the impact of the upper layer.

Benefits of technology

It improved the quality and yield of sintered ore, reduced solid fuel consumption, and enhanced desulfurization and denitrification efficiency, thus solving the problem of excessive emissions from sintering flue gas.

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Abstract

本发明提供一种烧结烟气脱硫灰回配烧结生产的方法和设备系统,方法为:对燃料进行预处理;制备烧结料;布料点火烧结;烧结烟气循环。设备系统包括烧结机、布料系统、点火系统、抽风系统、卸料破碎装置和环冷机,布料系统包括第一布料装置和第二布料装置,抽风系统包括烟气循环系统和烟气外排净化系统,烟气循环系统包括前部风箱系统、前部风箱烟道、第一除尘器、循环引流风机、烟气除湿混合器、循环烟气主管道、循环增压风机和循环烟气密封罩,烟气外排净化系统包括后部风箱系统、后部风箱烟道、第二除尘器、烟气外排风机、活性炭脱硫脱硝系统、硫氮污染物检测仪和外排烟囱。本发明解决了配加脱硫灰导致的烧结料层透气性降低和烟气排放超标问题。
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