A Coordinated Blast Furnace Hot Blast Stove Gas Pipe Network Replacement Method

Abstract

The invention relates to the technical field of coordinated control of blast furnace hot blast stove changing timing, and discloses a method for coordinating the changing timing of blast furnace hot blast stoves based on the blast furnace hot blast stove firing state and future state prediction. Including the establishment of the optical fiber physical link between the server and the blast furnace hot blast stove, collecting the operating parameter data of each blast furnace hot blast stove, judging the operation status of each blast furnace hot blast stove in real time, and predicting the hot blast of each blast furnace according to the firing status of each hot blast stove The timing of furnace replacement, according to the predicted results, the strength of the blast furnace hot blast stove is corrected in advance, and at the end of the firing period, according to the firing and furnace replacement of each blast furnace hot blast stove, within the adjustable range of the exhaust gas temperature, adjust The timing of changing each hot blast stove. This method realizes the coordination of furnace replacement among multiple hot blast stoves through the early change of furnace intensity in the mid-term and the precise control of the timing of furnace replacement in the final stage, avoids overlapping furnace replacement to the greatest extent, reduces the pressure fluctuation of the gas pipeline network, and contributes to the maintenance of the pipeline network. Balance control lays the foundation.

Description

technical field [0001] The invention relates to the field of coordinated control of gas pipe networks of metallurgical blast furnace hot blast stoves, in particular to a method for coordinated replacement of gas pipe networks of blast furnace hot blast stoves. Background technique [0002] In the metallurgical industry, the hot blast stove is one of the main supporting equipment for the blast furnace in the ironworks. Its function is to continuously provide high-temperature hot air above 1000 degrees for the blast furnace. , Two burning and one sending, one burning and two sending, cross-parallel and other air supply systems. Blast furnace hot blast stoves in the metallurgical industry are one of the main users of blast furnace gas. The amount of blast furnace gas used by hot blast furnaces in various iron and steel metallurgical plants accounts for 30% to 60% of the total blast furnace gas production. The air volume process belongs to the periodic heat storage and heat rel...

AI Technical Summary

Problems solved by technology

[0003] At present, the management mode of hot blast stove gas pipeline network usually adopts manual command operation, communicates the current status of each blast furnace hot blast stove operation room by calling, and asks the coordination center whether the furnace replacement condition is available when changing the furnace, and the entire coordinated furnace replacement process is manually judged and complete, and the changeover operation is not proactive

The uncertain status of blast furnaces, manpower management costs and untimely communication are the biggest problems of this governance method

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