Method for controlling automatic alloy feeding of converter steel ladle

Abstract

The invention discloses a method for controlling automatic alloy feeding of a converter steel ladle. The method comprises the following steps: establishing an alloy bin list and a steel grade list library; according to steel grade brands, selecting a corresponding steel grade list, confirming the information in the steel grade list, sending an automatic alloy feeding start instruction, and combining the steel grade list with the alloy bin list so as to automatically generate weighing information and feeding information of each batch in an alloy weighing-feeding list; according to the generated weighing information in the alloy weighing-feeding list, controlling the automatic weighting of each weighting feeder; according to the generated feeding information in the alloy weighing-feeding list combined with a steel tapping clock, controlling a weighing hopper to discharge automatically and a collecting bucket to feed automatically; and repeating the steps so as to finish the alloy weighing and feeding tasks of the molten steel in each converter. By virtue of the method, the full-automatic control on the alloy feeding of the converter steel ladle can be achieved, the working efficiency is enhanced, the feeding operation is specified, and the accidents of weighing and feeding alloys by mistake are effectively avoided.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to an automatic feeding control method for a converter ladle alloy. Background technique [0002] After the molten steel is smelted in the steelmaking converter, it is poured into the ladle through the outlet of the converter, and then various alloy materials are added to the ladle to adjust the composition of the molten steel. The converter ladle alloy feeding system is a process system set up to complete alloy weighing and feeding tasks for adjusting the composition of molten steel. [0003] At present, domestic steelmaking plants generally adopt the process of alloy silo-frequency conversion weighing feeder-weighing hopper-collecting hopper-steel ladle to realize the feeding operation of converter ladle alloy. The typical process flow diagram of the existing converter ladle alloy feeding system is as follows: figure 2 shown. The alloy operator sets the weighing setti...

AI Technical Summary

Problems solved by technology

[0005] 1. For the same steel type, different operators have different choices of alloy weighing type, weighing sequence, and feeding timing due to different personal experience, and the alloy feeding operation is difficult to standardize

[0006] 2. Although the semi-automatic operation mode of the existing alloy feeding control system can realize the automatic and accurate weighing of the alloy, in the process of smelting a furnace of molten steel, the operator still needs to touch the mouse and keyboard many times to set the alloy weight and start the process. Alloy weighing, starting weighing hopper discharge, starting intermediate hopper feeding and other operations; and usually the alloy operator also needs to take into account the operation task of argon blowing at the bottom of the ladle, and the work is very labor-intensive

Due to many and complicated operations, accidents of misproportion and miscasting of alloys occur from time to time, seriously affecting the quality of tapping

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