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唐钢长材部转炉一次除尘系统采用干法除尘工艺,该工艺流程为:冷却烟道、无“香蕉弯”蒸发冷却器、静电除尘器、离心风机、电动蝶阀切换系统等组成。干法除尘工艺对传统的转炉炼钢工艺提出了更高的要求。本文根据CO-Air-(N2/CO2)三元图的爆炸范围分析了静电除尘器泄爆机理,并结合转炉吹炼脱碳曲线阐述了转炉冶炼期间和非冶炼期间静电除尘器泄爆的原因,并提出了控制静电除尘器泄爆的措施。实践证明,通过调整和优化转炉工艺操作,可以有效控制泄爆的发生。突破了干法除尘工艺对终点w(C)<0.15%方可拉碳的技术要求,为干法除尘技术的推广应用起到示范作用。
The primary dust removal system of the long steel part of Tangshan Iron & Steel Co., Ltd. adopts the dry dust removal process. The technological process is as follows: cooling flue, no “banana bend” evaporative cooler, electrostatic precipitator, centrifugal fan and electric butterfly valve switching system. Dry dust removal process of the traditional converter steelmaking process put forward higher requirements. Based on the explosion range of the CO-Air- (N2 / CO2) ternary diagram, this paper analyzes the leakage mechanism of the electrostatic precipitator and expounds the reason of the electrostatic precipitator explosion during the smelting process and the non-smelting process , And put forward measures to control the electrostatic precipitator explosion. Practice has proved that by adjusting and optimizing the converter process operation, can effectively control the occurrence of leakage. Breaking the dry dedusting process for the end of w (C) <0.15% before carbon pulling technical requirements for the promotion of dry dust removal technology to play an exemplary role.