Method for treating arching problem of charging by automatic control system of yellow phosphorus furnace electrode

An automatic control system and processing furnace technology, applied in electric heating devices, electrical components, heating by discharge, etc., can solve the problems of high labor intensity, unbalanced three-phase power, broken pole accident, etc., to avoid broken pole accident , The effect of reducing smelting power consumption and protecting from being broken

Active Publication Date: 2009-10-21
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, it often occurs that the furnace charge forms an arch in the furnace. When the arch is serious, a large-scale collapse will occur, and a large-scale collapse will lead to an electrode broken accident.
In order to avoid large-scale arching of the charge in the furnace, it is usually solved by manually raising and lowering the

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  • Method for treating arching problem of charging by automatic control system of yellow phosphorus furnace electrode

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[0021] All the features disclosed in this specification, or all the steps in the disclosed methods or processes, except for mutually exclusive features and / or steps, can be combined in any manner.

[0022] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless specifically stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is just one example of a series of equivalent or similar features.

[0023] 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. After transformation, the secondary output of the transformer B outputs a third of 80V to 500V. Phase alternating current is connected to the furnace through a large cross-sectio...

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Abstract

The invention discloses a method for treating arching problem of charging by an automatic control system of a yellow phosphorus furnace electrode, comprising the following steps of firstly calculating the needed smelting time according to the charging condition and smelting process, selecting the lifting time point of the electrode hereby, and controlling all electrodes to lift upwards and downwards simultaneously by a computer when each time points arrives. The method has the active effects that the large-scale arching phenomenon forming and broken electrode accidents in the furnace can be avoided, the electrodes can be effectively protected against breaking, the normal running of the smelting process is maintained and the objects of improving electric and thermal efficiency, reducing the electric consumption for smelting and improving the output can be achieved.

Description

technical field [0001] The invention relates to a method for processing furnace material arching by an automatic electrode control system, in particular to a method for processing furnace material arching by an automatic electrode control system for 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 sufficient high 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, it often occur...

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Application Information

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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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