Method for determining a time for charging an electric arc furnace with material to be melted, signal processing device, machine-readable program code, storage medium and electric arc furnace
A signal processing device, a technology of charging time, applied in the field of determining the charging time point for charging smelting charge in an electric arc furnace, a signal processing device, a machine-readable program code, a storage medium and an electric arc furnace, capable of solving Inability to fully and accurately determine the charging time point and other issues
Active Publication Date: 2013-01-02
PRIMETALS TECH GERMANY
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Problems solved by technology
[0019] The disadvantage of all these methods is that they cannot determine the charging point with sufficient accuracy and therefore cannot charge or recharge the electric arc furnace in an efficient manner, that is to say especially at the optimal point in time
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[0059] figure 1 An electric arc furnace 1 , in particular a three-phase electric arc furnace, is shown schematically. In the manufacture of molten metal, especially in the manufacture of molten steel pools, it is necessary to repeatedly put the smelting charge G into the electric arc furnace 1, especially into the furnace container 1' contained in the electric arc furnace, so that the furnace in the furnace The liquid metal present at the end of the melting process reaches the desired discharge amount. Scrap is frequently added twice to the electric arc furnace 1 for this purpose. However, it may also be necessary to make more or less than two additional additions. This depends, among other factors, on the electric arc furnace 1 and its capacity.
[0060] If it is necessary to charge scrap three times in order to achieve the discharge volume, the melting process starts first with the first charge or with the first charge of scrap.
[0061] These are mostly or completely me...
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The invention relates to an electric arc furnace, to a signal processing device, to a storage medium, to a machine-readable program code, and to a method for determining a time for charging, in particular recharging, an electric arc furnace (1) with material to be melted (G), in particular scrap, wherein the electric arc furnace (1) comprises at least one electrode (3a, 3b, 3c) for heating material to be melted (G) that is arranged inside the electric arc furnace (1) by means of an electric arc. By detecting a first signal (S) for determining a phase state of an electric arc root on the side of the material to be melted on the basis of a captured electrode current (Ik), by checking whether the first signal (S) exceeds a predetermined threshold value for a predetermined minimum duration, and by ensuring that the time for charging is reached at the earliest when the first signal exceeds the threshold value for the predetermined minimum duration, a state-oriented charging time for the operation of an electric arc furnace can be determined in order to reduce the use of energy, the use of resources, and the production time for a production cycle to reach a tap weight.
Description
technical field [0001] The invention relates to a method for determining the point in time for charging, in particular supplementary charging, of smelting charge, in particular scrap, in an electric arc furnace, wherein the electric arc furnace comprises at least one electrode for being arranged in the electric arc furnace by means of an arc pair The smelting charge inside is heated. Furthermore, the invention relates to a signal processing device, a machine-readable program code and an electric arc furnace for carrying out the method. Furthermore, the invention also relates to a storage medium on which a machine-readable program code is stored. Background technique [0002] When steel is produced in an electrode arc furnace, the scrap is melted. Here, during the melting process, the amount of charge is reduced by a factor of five to ten (depending on the relative bulk density of the scrap), so that one or two additional baskets are usually supplemented in the electric arc...
Claims
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IPC IPC(8): C21C5/52F27B3/28F27D21/00F27D19/00
CPCF27D21/0035C21C5/527F27B3/28C21C2300/06F27D19/00Y02P10/20Y02P10/25
Inventor 比约恩·迪特默德特勒夫·里格尔阿尔诺·德贝勒克劳斯·克吕格尔萨沙·利德贝特托马斯·马楚拉特
Owner PRIMETALS TECH GERMANY