Top EAF charging is convention type, from 0.5t to 200t, each capacity requires a bucket charge from the top. The first step in any EAF tap-to-tap cycle is "charging" into the scrap. The EAF roof and electrodes are raised and are swung to the side of the electric arc furnace charging furnace to allow the scrap EAF charging crane to move a full bucket of scrap into place over the EAF charging furnace. The bucket bottom is usually a clam shell design - i.e. the bucket opens up by retracting two segments on the bottom of the bucket. The scrap falls into the EAF charging furnace and the scrap crane removes the scrap bucket. The roof and electrodes swing back into place over the electric arc furnace charging furnace.
Electric arc furnace that uses the high temperature produced by electrode arc to melt ore and metal, DRI, HBI. When gas discharge forms an arc, this energy is very concentrated, and the temperature of the arc zone is above 3000 ℃. For metal smelting, electric arc furnaces have greater flexibility in the process compared to other steel-making furnaces, effectively removing impurities such as sulfur and phosphorus. The electric arc furnace charging furnace temperature is easy to control, and the equipment occupies a small area, making them suitable for the melting of high-quality alloy steel.
EAF from CHNZBTECH, a professional EAF charging furnace supplier, is the ideal melting unit for the production of all types of steel, from standard carbon grades up to high-alloyed and stainless steel grades. Its overall EAF furnace performance can be additionally enhanced with the latest oxygen- and carbon-injection technologies. The idea of CHNZBTECH for the choice of the various systems making up the plant is strictly related to the achievement of the following high-priority objectives, namely:
Ultra High Power
High Efficiency
High-quality
High Flexibility to meet different needs
Less investment
The energy required to meltdown and superheat the scrap and slag including all losses is balanced by the energy input by means of electrical energy and exothermic reactions. Electric Arc Furnace (EAF) is designed consider always for short tap-to-tap times because of several technologies such as:
Ultra-high power is the most prominent feature of the new generation of EAF charging equipment so that high secondary voltages and longer arc can be achieved.
Extensive use of alternative energy sources (chemical energy, like oxygen, and natural gas) by wall-mounted burners and manipulators from EAF charging furnace door.
With DRI/HBI top feeding by overhead belt, heavy construction design to sustain hard working conditions, allowing very fast movements and safe operations.
Know-how technology of electrode control system, hot heel and better skin-effect of copper-steel cladded electrode arm to improve melting.
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