Carbon element coreless electrode

Abstract

The present invention relates to a carbon electrode material used in ferroalloy electric furnace smelting and the structure thereof. The invention provides an electrode conductive material taking carbon as the main component and provides a carbon hollow electrode comprising the electrode body and electrode nipple; the electrode body and electrode nipple are both in hollow cylinder shape; upper and lower ends of the electrode body have concave stages; side wall of the concave stage is installed with internal thread; the electrode nipple is less than the electrode body; the electrode nipple is connected with the electrode body through the external thread. Under the situation with the same carbon volume; the carbon electrode material has higher surface ratio, larger working area and larger machining area, generates higher thermal efficiency, is able to save the using amount of carbon electrode, and the carbon hollow electrode has simple and ingenious structure, little energy consumption, high heat production and high heat utilization; when the furnace is lack of carbon, the carbon electrode material blows carbon in time; and when the carbon is more, the carbon electrode material reduces the carbon and blows material in time; and the addition is simple and is able to continuously work.

Description

technical field [0001] The invention relates to a consumable material for electric discharge heating of a smelting electric furnace heater, in particular to a carbon electrode raw material and its structure. Background technique [0002] Due to the high temperature resistance and good chemical stability of carbon, it is matched with the automatic power supply system to generate electricity. It has been widely used in national defense, machinery, metallurgy, light chemical, ceramics, semiconductors, analysis and testing, scientific research and other fields, and has become an electric heating element for various electric furnaces and kilns. [0003] DC electric furnaces, plasma electric furnaces, and low-frequency AC electric furnaces are new electric furnaces developed in the past 20 years. They have the advantages of high power density, low electrode consumption, low smelting power consumption, and high power factor. Therefore, it is convenient, safe and reliable to use ca...

AI Technical Summary

Problems solved by technology

[0006] The invention provides an electrode conductive material with carbon as the main component. This material is mainly used in the production of industrial silicon, which solves the problem of untimely partial supply of raw materials in the arc concentration area of ​​the silicon smelting furnace during the production of industrial silicon. , the problem of wasting resources, silicon raw materials can be replenished in time, and the productivity is greatly improved. The electrodes also have the advantages of low resistivity, high volume density, high flexural and compressive strength, small thermal expansion coefficient, and less ash content.

[0007] The present invention also aims at the problem that the existing carbon rods are difficult to be deeply inserted into the electric furnace, the position of the discharge arc is too concentrated, and the power consumption is large. Large, high thermal efficiency, can save the consumption of consumable carbon electrodes. It is a simple and ingenious structure, low energy consumption, high heat production, high heat utilization rate, timely carbon blowing when there is a lack of carbon in the furnace, and timely when there is more carbon. Carbon reduction, blowing, easy to add, carbon hollow electrode that can work continuously

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