System and method for controlling electrode of ore-smelting electric furnace

A submerged thermal electric furnace, electrode control technology, applied in the direction of furnace control devices, furnaces, furnace components, etc., can solve the problems of electrode control hysteresis, low efficiency, poor stability, etc., achieve high accuracy, improve control accuracy, reduce Effect of Line Reactive Loss

Inactive Publication Date: 2012-01-25
云南文山斗南锰业股份有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to at least solve the above-mentioned technical defects, especially solve the defects of hysteresis, poor stability and low efficiency of electrode control in the prior art

Method used

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  • System and method for controlling electrode of ore-smelting electric furnace
  • System and method for controlling electrode of ore-smelting electric furnace
  • System and method for controlling electrode of ore-smelting electric furnace

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Embodiment Construction

[0018] 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 only for explaining the present invention and should not be construed as limiting the present invention.

[0019] Such as figure 1 Shown is a structural diagram of the submerged arc furnace electrode control system according to the embodiment of the present invention. The system adopts C / S (Client customer service end / Server server end) architecture, which is mainly composed of three layers: field control layer, operation management layer and network communication layer. Among them, the field control layer is composed of controllers, such as PLC server, DCS server, etc., and the controller can be selected according to the size and operation ...

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Abstract

The invention provides a system for controlling an electrode of an ore-smelting electric furnace. The system comprises a current signal acquisition module, a setting module, a computation module, an electrode controller, a transformer controller and a control module, wherein when a current detection value obtained by the current signal acquisition module does not exceed the range of a current change comparison region computed by the computation module, the control module does not change the stroke of the electrode and / or the voltage class of a transformer. According to the embodiment of the invention, the electrode load of the ore-smelting electric furnace can be automatically adjusted so as to ensure balanced load control of the three-phase electrode of a large-sized ore-smelting circuit, thus reducing the reactive loss of the circuit, prolonging the service lives of the circuit transformer and a high-voltage circuit breaker, and achieving high precision and good real-time property; a primary current is taken as the most principal load control parameter, which is beneficial to improvement on the control precision; and by means of judgment of electrode faults, the safety operatingperformance of the ore-smelting electric furnace can be further improved.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to an electrode control system and method for a submerged thermal electric furnace. Background technique [0002] At present, the load control of large submerged heat electric furnace is mainly realized by manually adjusting the hydraulic system to control the lifting cylinder of the electric furnace. By changing the area where the electrode contacts the charge, that is, adjusting the working position of the electrode in the arc section, the load of the electric furnace electrode is controlled, and the manual control method cannot achieve the requirements of precise and continuous tracking control. [0003] The disadvantage of the prior art is that the current manual control method has defects such as hysteresis, poor stability, and low efficiency. Contents of the invention [0004] The object of the present invention is to at least solve the above-mentioned technical defects,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D19/00
CPCY02P10/25
Inventor 马清龙李金成汤顺祥谢子洪
Owner 云南文山斗南锰业股份有限公司
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