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

A tilting angle, converter technology, applied in calculation, manufacturing converter, electrical digital data processing, etc., can solve the problems of inaccurate weight value, increased equipment investment, converter smelting process and the influence of secondary model calculation accuracy, etc., to save The effect of investment, control algorithm is simple, easy to implement and apply

Active Publication Date: 2013-11-20
INST OF RES OF IRON & STEEL JIANGSU PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0036] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and a preferred embodiment.

[0037] A method of calculating the amount of slag remaining in the converter according to the tilting angle of the converter in this embodiment is applied to a 180t converter in a steel plant. The process of slag dumping is shown in Figure 1 .

[0038] The implementation process of the technical solution is described in detail as follows.

[0039] Since the specific weight of the forehearth slag cannot be determined, the converter needs to be emptied before the calculation, and since the slag adhering to the furnace mouth may have a certain impact on the observation of the critical angle, maintenance personnel are required to clean the furnace mouth, and the furnace lining measurement data must be Export ahead of time.

[0040] The operator in front of the furnace observes the critical angle α when the slag will not...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/28G06F19/00
CPCY02P10/20
Inventor 高文达卢金强王哲程奎生
Owner INST OF RES OF IRON & STEEL JIANGSU PROVINCE
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