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LF refining furnace optimal economical burdening and intelligent control model

An optimal economical and intelligent control technology, applied in the direction of improving energy efficiency, design optimization/simulation, instruments, etc., can solve the problems of molten steel quality reduction, cumbersome, inevitable heat loss, etc., and achieve the effect of low power consumption per ton of steel

Active Publication Date: 2017-08-15
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

Method used

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  • LF refining furnace optimal economical burdening and intelligent control model
  • LF refining furnace optimal economical burdening and intelligent control model
  • LF refining furnace optimal economical burdening and intelligent control model

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Embodiment Construction

[0228] The specific embodiments provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0229] 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;

[0230] One, the optimal economic batching model process of the LF furnace is as follows:

[0231] First, explain the parameters used in the formula:

[0232] 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;

[0233] Table 1 Chemical composition and price of slag

[0234]

[0235] 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 LF refining furnace optimal economical burdening and intelligent control model which comprises an LF furnace optimal economical burdening model and an LF furnace molten steel temperature prediction and optimal power supply model. Defects and shortcomings of an existing LF control technology are overcome, characteristics of an LF furnace are combined, the LF furnace optimal economical burdening mathematical model, the molten steel temperature prediction mathematical model, and an electrode intelligent adjusting mathematical model with the minimum power consumption as the target are elicited, and a VBS script program is written and embedded into WINCC, so that LF steel ladle refining furnace optimal economical burdening and intelligent control are achieved. The model is used for online prediction of the temperature of molten steel, automatic obtaining of the optimal economical burdening, and enabling the electric power consumption per ton steel to reach the minimum under the condition that 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 Applications(China)
IPC IPC(8): C21C7/00C21C7/076G06F17/50
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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