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Electric furnace power control method and device suitable for electric furnace slump

A power control and electric furnace technology, applied in the direction of furnace control devices, furnaces, furnace components, etc., can solve the problems of reducing the service life of the electric furnace, damage to the electric furnace, inconvenience, etc., and achieve the effect of ensuring reliability and solving the problem of control imbalance

Active Publication Date: 2016-08-17
CHINA ENFI ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, for the jumping changes in the slumping process, the conventional control methods used by some smelters are difficult to adapt to. At this time, it is necessary to switch to manual adjustment, which is extremely inconvenient, easily leads to damage to the electric furnace, and reduces the service life of the electric furnace. Electric Furnace Reliability

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  • Electric furnace power control method and device suitable for electric furnace slump
  • Electric furnace power control method and device suitable for electric furnace slump
  • Electric furnace power control method and device suitable for electric furnace slump

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Embodiment Construction

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0039]In the present invention, unless otherwise clearly specified ...

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Abstract

The invention discloses an electric furnace power control method and an electric furnace power control device applicable to material collapse furnace conditions of electric furnaces. The electric furnace power control method includes steps of setting set power values of the electric furnaces and acquiring actual power values of the electric furnaces; computing set impedance values and measured impedance values of the electric furnaces according to the set power values and the actual power values of the electric furnaces; judging whether the electric furnaces are in material collapse states or not according to the set impedance values and the measured impedance values of the electric furnaces; controlling micro-movement of electrodes if the electric furnaces are in the material collapse states; computing lifting amplitude values of the electrodes according to the set impedance values and the measured impedance values of the electric furnaces if the electric furnaces are not in the material collapse states, and controlling the electrodes according to the lifting amplitude values. The electric furnace power control method and the electric furnace power control device in an embodiment of the invention have the advantages that whether the electric furnaces are in the material collapse states or not is judged, so that micro-movement of the electrodes can be controlled, or the electrodes can be controlled according to the lifting amplitude values, the electric furnace power control method and the electric furnace power control device are simple, convenient and speedy, the problem of control disorder due to material collapse of existing electric furnaces can be solved, and the reliability of the electric furnaces can be effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of smelting, in particular to an electric furnace power control method and device suitable for the furnace condition of electric furnace slump. Background technique [0002] Electric furnaces are widely used in smelting processes, such as holding electric furnaces in lead-zinc smelting, depletion and subsidence electric furnaces in copper smelting, smelting electric furnaces in nickel-iron smelting, etc. Among them, whether the electric furnace runs smoothly often has a crucial impact on the entire process and final products. However, due to the strong nonlinearity of the control object of the electric furnace, its power automatic control is very easy to lose stability. [0003] Specifically, when the automatic control loses stability, slump is a situation that often occurs in the operation of the electric furnace. It is manifested in that the electrode power drops rapidly to zero or a small value (dependin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27D19/00
Inventor 李刚
Owner CHINA ENFI ENGINEERING CORPORATION
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