Method for calculating residual slag amount of converter in accordance with tilting angle of converter

Abstract

The invention provides a method for calculating the residual slag amount of a converter in accordance with a tilting angle of the converter. The method comprises the following steps of: after blowing is finished, recording a critical angle alpha when slag in the converter needs to flow out and does flow out in a slag pouring process to obtain a total volume V1 of a molten body in the converter; then, determining the height of a molten steel liquid surface by a secondary gun to obtain the volume Vsteel of molten steel of the converter; recording a converter tilting angle beta after the slag is poured to obtain a total volume V2 of the residual molten body; finally, combining furnace lining corrosion data provided by a furnace lining measurement system to calculate the total volume of the molten body in the converter before the slag is poured out and the volume of the poured slag, wherein the difference between the total volume and the volume is the volume of the residual slag in the converter; calculating the total slag amount by material balance; obtaining the residual slag amount in the converter according to a direct proportion of the mass to the quality. According to the method provided by the invention, detection equipment and weighing equipment do not need to be additionally arranged, so that the method is simple and feasible.

Description

technical field [0001] The invention relates to a simple method for calculating the amount of remaining slag in the furnace after slag pouring according to the tilting angle of the converter. Specifically, it is a method developed for the slag remaining or less slag method currently used in the converter process without adding any hardware equipment. It is a simple method to obtain the amount of slag remaining in the converter with an additional investment. Background technique [0002] Converter slag-retaining steelmaking is a steelmaking method in which a part of the final steelmaking slag is left in the furnace to participate in the slag making of the next furnace. Due to the high basicity, iron oxide content and temperature of the final slag, it is beneficial to the formation of initial slag and early dephosphorization, and improves the process of slag removal, so it can greatly reduce the consumption of iron and steel materials, lime consumption and increase the amount ...

AI Technical Summary

Problems solved by technology

[0003] (1) The weight of converter slag dumping and remaining slag is generally judged by the operator in front of the furnace based on experience. This weight value is extremely inaccurate and has a great impact on the calculation accuracy of the converter smelting process and the secondary model

[0004] (2) To add a weighing system, the general method is to install a weighing system on the slag truck where the slag tank is placed, which not only increases the investment in equipment, but also increases the workload of later maintenance

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