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Method for intelligent lifting control of electrode of electro-fused magnesia furnace

A technology of electrode lifting and fused magnesia furnace, applied in electric heating devices, electrical components, improving energy efficiency, etc., can solve the problems of unstable control, high energy consumption of products, and low content of high-quality products

Inactive Publication Date: 2010-06-30
沈阳东大自动化有限公司
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  • Application Information

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Problems solved by technology

[0004] Aiming at the problems of unstable control, high energy consumption of products and low content of high-grade products in the traditional control method, the present invention provides an intelligent control method for the lifting and lowering of electric fused magnesium furnace electrodes that can save energy, improve product taste and reduce labor intensity of workers

Method used

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  • Method for intelligent lifting control of electrode of electro-fused magnesia furnace
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  • Method for intelligent lifting control of electrode of electro-fused magnesia furnace

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Embodiment Construction

[0237] Such as figure 1 As shown, an intelligent control method for the lifting of electrodes of a fused magnesium furnace, which uses a lifting device for an electrode of a fused magnesium furnace, includes the following steps:

[0238] Step 1: Perform program initialization;

[0239] Program initialization includes setting the program interrupt time, assigning initial values ​​to variables, clearing flags, etc.

[0240] Step 2: Carry out data collection;

[0241] The real-time instantaneous value of the three-phase current is collected through the data input / output module EM235 and stored in the PLC memory.

[0242] Step 3: Preprocessing the collected data;

[0243] During the smelting process of fused magnesia, the working conditions in the furnace change drastically and the interference is serious. These disturbances have a serious impact on the instantaneous value of the three-phase current in the process data, so it is necessary to filter the collected instantaneous ...

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Abstract

The invention relates to a method for the intelligent lifting control of the electrode of an electro-fused magnesia furnace, belonging to the technical field of process control in metallurgical industry. The method is suitable for controlling the lifting of the electrode during the production of electro-fused magnesia. The method for the intelligent lifting control of the electrode of the electro-fused magnesia furnace has the advantages that the energy is saved, the product quality is improved and the labor strength of workers is reduced. The control method of the invention adopts an electro-fused magnesia furnace electrode lifting device and comprises the following steps: step one: initializing a program; step two: acquiring data; step three: preprocessing the acquired data; step four: judging whether five continuous current changes are larger than 5,000A, if so, calling an exhaust subprogram; and if not, calling an automatic control subprogram; and step five: ending.

Description

Technical field: [0001] The invention belongs to the technical field of process control in the metallurgical industry, and in particular relates to an intelligent control method for lifting and lowering electrodes of an electric fused magnesium furnace, which is suitable for controlling the lifting and lowering of electrodes in the production process of electric fused magnesium. Background technique: [0002] Fused magnesium is a basic refractory material with high purity, high melting point and compact structure. It is widely used in many fields such as metallurgy industry, glass industry, cement industry, home appliance heater and high temperature chemical industry. Its production mainly adopts the electric melting method, and the electric fused magnesium furnace is one of the most widely used production equipment in the current electric fused magnesium production industry. [0003] The fused magnesium furnace is a controlled object with strong nonlinearity, time-varying a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B7/148
CPCY02P10/25
Inventor 张杰卿吴志伟岳恒柴天佑宋志泉
Owner 沈阳东大自动化有限公司
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