Blast furnace bell-less furnace top failure diagnosis forecasting system

Abstract

The invention relates to a blast furnace bell-less furnace top failure diagnosis forecasting system for detecting and monitoring the operation state of a furnace top distributor on line. A great amount of history data are stored in a computer database, the heated and pressed conditions in all positions of the distributor, the weighting condition of a furnace top discharging tank during distribution and the operation vibration condition of the distribution are programmed and analyzed, and the operation state of the distributor is diagnosed and analyzed for a long term so as to preprocess failures, or sum up the detection period of a gearbox, prevent over-repair or disrepair phenomena and greatly decrease the production operation cost. Moreover, the invention solves the problem that a displacement value between a large gear disc and a relatively stationary gearbox shell in a traditional sealed furnace can not be detected and output. The invention also provides a practical concrete implementation mode.

Description

technical field [0001] The present invention is a blast furnace bellless furnace roof, referred to as a bellless furnace roof distributor fault diagnosis and prediction system, which is a real-time detection and calculation of the operating parameters of the furnace roof distributor. The model tracks and compares various parameters to realize a real-time online monitoring system for the bellless top distributor of the blast furnace. Background technique [0002] Blast furnace top distributor is the key equipment for normal production of blast furnace for reasonable distribution. Its main function is to realize the detection of material weight on the top of the furnace and the rotation and tilting function of the distribution nozzle, so as to achieve a comprehensive and reasonable distribution effect. Material weight detection: detect the material weight of each batch of materials required; Rotate 0--360 degrees in the horizontal direction, and run at a slow speed of 0.133HZ...

AI Technical Summary

Problems solved by technology

Its main function is to realize the detection of the weight of the material on the top of the furnace and the rotation and tilting of the distribution nozzle to achieve an all-round reasonable distribution effect. Material weight detection: to detect the material weight of each batch of materials required; Rotate 0--360 degrees in the horizontal direction, and run at a slow speed of 0.133HZ in 7.5 seconds; tilting function: realize the movement of the mouth in the vertical direction 0--75 degrees, and the rotation and tilting actions are all through the external rotating motor Different ways of gear meshing with the gear box driven by the tilting motor are realized. The inside of the gear box is filled with a large amount of lubricating oil, which will inevitably cause corresponding wear and tear during long-term operation, or the entry of small foreign objects may cause the gear box to malfunction. It must be found in time and shut down. Maintenance, otherwise the expansion of the accident will be caused, and the replacement of the gearbox requires a maintenance period of 15 days, which seriously affects the normal production of the blast furnace

[0003] For equipment spot inspection, the current gearbox spot inspection is completed once per shift by the operator, and the gearbox is installed on the top of the blast furnace and belongs to the gas area. The spot inspection equipment is more dangerous, and the disadvantages of manual inspection and judgment: 1. Operators stay in the gas area for a long time, and there are great personal safety hazards; 2. Manual inspection can only realize periodic inspections, and cannot detect faults in time; 3. Manual judgment lacks scientific comparison and cannot effectively analyze fault phenomena

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