Power constant system capable of automatically adjusting electrode position and working method of power constant system

Abstract

The invention relates to a power constant system capable of automatically adjusting an electrode position and a working method of the power constant system. The system comprises a current transformer,an isolation transformer, a first rectifier, a second rectifier, a first sliding rheostat, a three-station three-way servo valve, a plunger cylinder, an oil return path and an oil injection path, wherein the current transformer is connected with an input end of the first rectifier, the isolation transformer is connected with an input end of the second rectifier, a first output end of the first rectifier is connected with a first output end of the second rectifier and a sliding end of the first sliding rheostat, a second output end of the first rectifier is connected with the first end of thefirst sliding rheostat and the servo valve, a second output end of the second rectifier is connected with a second end of the first sliding rheostat and the servo valve, and the plunger cylinder is connected with the oil return path and the oil injection path via the servo valve. Compared with the prior art, the system has the advantages that an idea of automatically adjusting the electrode position is employed, constant power of electric furnace smelting is achieved, and the smelting production quality and efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of electric furnace steelmaking, in particular to a constant power system capable of automatically adjusting electrode positions and a working method thereof. Background technique [0002] During electric furnace steelmaking, how to design a constant power electro-hydraulic servo system that controls the lifting of electrodes has always been a major technical problem that plagues quality improvement. Fast and accurate electrode position control is one of the key factors for saving electric energy, shortening smelting cycle, reducing electrode consumption and extending furnace lining life. [0003] During smelting, because the electrode position cannot be adjusted automatically, the current and voltage fluctuate too much, resulting in many disadvantages such as long smelting time, decreased output, increased power consumption, and increased electrode consumption. Contents of the invention [0004] The purpose of the...

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Problems solved by technology

[0003] During smelting, because the electrode position cannot be adjusted automatically, the fluctuation of current and voltage is too large, resulting in many shortcomings such as long smelting time, decreased output, increased power consumption, and increased electrode consumption.

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