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Method for recognizing electrode defection of yellow phosphorus stove electrode automatic control system

The technology of an automatic control system and an identification method is applied in the identification field of electrode deflection of a yellow phosphorus furnace, which can solve the problems of oversight, electrode breakage, and the monitoring method for electrode deflection has not yet been seen, so as to increase production, reduce smelting power consumption, The effect of protection from being broken

Active Publication Date: 2009-09-09
南通江海港建设工程有限公司
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Problems solved by technology

[0003] During the smelting process of the yellow phosphorus furnace, whether the electrodes are deflected or not is judged by manual observation. Due to manual limitations, there are often production accidents that cause the electrodes to break due to oversight.
So far, no effective electrode deflection monitoring method can avoid the occurrence of electrode breakage accidents

Method used

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  • Method for recognizing electrode defection of yellow phosphorus stove electrode automatic control system

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Embodiment Construction

[0017] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0018] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0019] figure 1 It is a block diagram of the control circuit of the present invention. The 110KV (35KV) three-phase alternating current of the power grid is connected to the primary of the submerged arc furnace transformer B through the isolation switch GK and the vacuum switch ZK. Phase alternating current enters the furnace to provide electric power through a large cross-section short network composed of large cross-section copper tubes or ...

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Abstract

The invention provides a method for recognizing electrode defection of a yellow phosphorus stove electrode automatic control system, comprising the following steps: pull difference value is calculated according to pull of 3 hoisting chains of each electrode; when pull difference value of any two hoisting chains is more than a given value, the polar electrode is judged to be in a deflective state, and then the polar electrode is needed to withdraw from the automatic control state , switches to a manual control state and gives a warning prompt. The positive effect of the method is: being capable of monitoring whether the electrode is deflective or not, effectively protecting the electrode from being snapped, maintaining normal operation of smelting process, so as to achieve the purpose of improving electric and thermal efficiency, reducing smelting power consumption and improving production.

Description

technical field [0001] The invention relates to a method for identifying deflection of electrodes, in particular to a method for identifying deflection of electrodes in a yellow phosphorus furnace. Background technique [0002] Yellow phosphorus furnace is a kind of submerged arc furnace series. The smelted product is yellow phosphorus. The core theory of its smelting is: through ionized air to form a directional high-temperature ion flow arc, convert electrical energy into heat energy, and provide a high enough temperature for the reduction reaction. Temperature Field. The state of the arc depends on the distance between the electrode tip and the discharge body, the conductivity of the discharge body, the voltage, the temperature around the electrode, and the resistance characteristics of the charge medium. [0003] During the smelting process of the yellow phosphorus furnace, whether the electrodes are deflected or not is judged by manual observation. Due to manual limita...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B7/144
CPCY02P10/25
Inventor 崔存生
Owner 南通江海港建设工程有限公司
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