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An Optimal Economic Batching and Intelligent Control Model for lf Refining Furnace

An optimal economical and intelligent control technology, applied in the direction of energy efficiency improvement, design optimization/simulation, process efficiency improvement, etc., can solve the problems of reduced molten steel quality, unavoidable heat dissipation loss, and increased labor intensity of temperature measurement operators. , to achieve the effect of low power consumption per ton of steel

Active Publication Date: 2019-01-04
SINOSTEEL ANSHAN RES INST OF THERMO ENERGY CO LTD
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Problems solved by technology

[0004] The existing LF ladle refining furnace molten steel temperature measurement is the off-line temperature measurement mode, the heat loss is inevitable during the temperature measurement waiting period, which increases the power consumption, and the labor intensity of the temperature measurement operators in front of the furnace increases accordingly
[0005] The existing LF ladle refining furnace ingredients (slag material, ferroalloy and wire feed) all use offline calculation mode to manually calculate the ratio of slag material, ferroalloy and wire feed, which is not only cumbersome, but also lags behind in real time, which will indirectly lead to a decrease in the quality of molten steel

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  • An Optimal Economic Batching and Intelligent Control Model for lf Refining Furnace
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  • An Optimal Economic Batching and Intelligent Control Model for lf Refining Furnace

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Embodiment Construction

[0231] The specific embodiments provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0232] An LF refining furnace optimal economic batching and intelligent control model, including LF furnace optimal economic batching model and LF furnace molten steel temperature forecast and optimal power supply model;

[0233] One, the optimal economic batching model process of the LF furnace is as follows:

[0234] First, explain the parameters used in the formula:

[0235] The chemical composition, price and addition amount of LF slag material are shown in Table 1; the chemical composition and price of slag material are known quantities, and the addition amount is unknown quantity to be sought;

[0236] Table 1 Chemical composition and price of slag

[0237]

[0238] The chemical composition, price and addition amount of LF furnace alloy (including feeding wire) are shown in Table 2; the chemical composition and price of a...

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Abstract

The invention relates to an optimal economic batching and intelligent control model of an LF refining furnace, including an optimal economic batching model of an LF furnace, a molten steel temperature forecast and an optimal power supply model of the LF furnace; According to the characteristics of the furnace, the optimal economic batching mathematical model of the LF furnace, the molten steel temperature prediction mathematical model and the electrode intelligent adjustment mathematical model aiming at the lowest power consumption are derived, and the LF ladle refining furnace can be realized by compiling the VBS script program and embedding it into WINCC. Optimum economical ingredients and intelligent control. It is used to predict the temperature of molten steel online, automatically obtain the optimal economic ingredients, and minimize the power consumption per ton of steel under the condition that the process requirements are met.

Description

technical field [0001] The invention relates to the technical field of refining control outside a metallurgical furnace, in particular to an optimal economic batching and intelligent control model of an LF refining furnace. Background technique [0002] The LF ladle refining furnace is used for secondary refining treatment of the primary molten steel in the converter. That is: molten steel heating, temperature rise, composition adjustment, desulfurization, degassing, removal of inclusions, uniform composition and temperature of molten steel. After ladle refining treatment, higher quality molten steel can be obtained, the variety conversion is flexible, the composition and temperature control are more accurate, and as a buffer link between the converter and the slab continuous casting machine, the production of the converter and the continuous casting machine is balanced and coordinated. The rhythm relieves the worries of the continuous casting production and is the key equi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/10
CPCC21C7/0006C21C7/0056C21C7/076G06F30/20Y02P10/20Y02P10/25
Inventor 任铁良方会斌王卫红
Owner SINOSTEEL ANSHAN RES INST OF THERMO ENERGY CO LTD
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