Method and system for controlling flue gas in PS converter tilting and returning process

The invention discloses a method and a system for controlling flue gas in PS converter tilting and returning processes, which can realize the control of the flue gas escape amount in the PS converter tilting and returning processes by monitoring the tilting angle of the converter in the PS converter tilting and returning processes in real time and performing interlocking control on each mechanism by a PLC (Programmable Logic Controller) control system, so that the flue gas escape amount is greatly reduced. And moreover, the flue gas trapping rate in the furnace tilting and returning processes can be increased to 95.12%, SO2 in the process flue gas is increased, and SO2 in the collected flue gas is reduced, so that the pollution to the environment and the injury to personnel are reduced. 本发明公开了一种PS转炉倾、回炉过程烟气控制方法及系统，通过对PS转炉的倾炉和回炉过程中转炉的倾转角度进行实时监控以及PLC控制系统对各个机构的连锁控制，可以实现对PS转炉倾、回炉过程中的烟气外逸量的控制，使烟气外逸量大幅减少，并且可将倾炉和回炉过程中的烟气捕集率提高至95.12％，工艺烟气中SO2增加，环集烟气中SO2减少，从而减少对环境的污染以及对人员的伤害。