Chromium Oxide Melting Electric Arc Furnace

1. Equipment Name: Chromium Oxide Smelting Furnace

2. Smelting variety and capacity: Chromium oxide sand, with a maximum capacity of about 40t.

3. Equipment usage: Mainly used for melting various refractory materials and abrasives such as chromium alloys, chromium oxide, calcium oxide, mullite, etc., while conducting multiple furnace melting, cooling, crystallization, and shelling.

4. Working principle
The chromium oxide smelting electric arc furnace mainly relies on three-phase AC power supply for operation. The current is transmitted to the electrode system stably and accurately through a carefully designed power supply system. Electrodes are usually made of high-purity graphite material because under extreme conditions of high temperature and high current, graphite electrodes can continuously and stably conduct current, ensuring long-term stable combustion of the arc. Throughout the entire smelting process, with the help of a high-precision electrode lifting control system, the system quickly and flexibly adjusts the electrode position based on real-time reaction conditions, temperature changes, and arc power fluctuations in the furnace, thereby accurately controlling the arc length and achieving precise control over the size and distribution of heat input into the furnace. This meets the strict temperature requirements of each stage in the chromium oxide smelting process, ensuring that the melted products have stable and excellent quality and performance. ​

5. Structural design
Ultra high temperature resistant furnace body: The overall structure of the furnace body is compact and sturdy, and the shell is made of specially customized high-quality heat-resistant stainless steel. This stainless steel not only efficiently resists high temperature radiation and prevents heat loss, but also has strong corrosion resistance, greatly extending the overall service life of the equipment.
Precise and stable electrode system: Three carefully crafted electrodes are arranged in an equilateral triangle, vertically passing through the furnace cover and penetrating deep into the core reaction area inside the furnace. The electrode is closely connected to a specially customized high-efficiency furnace transformer, which stably and efficiently transmits electrical energy to the electrode through low resistance, high current carrying capacity cables and water-cooled conductive tubes. The electrode holder adopts high-precision design, which not only firmly and accurately clamps the electrode, ensuring that the electrode will not shift under high temperature and high current conditions, but also has good conductivity and heat dissipation performance, effectively ensuring the stable operation of the electrode under extreme working conditions. ​
Intelligent and flexible control system: The chromium oxide melting arc furnace is equipped with an advanced mechanical control system to meet the convenience and precision requirements of chromium oxide melting operations. There are three high-precision electrode supports installed on one side of the furnace body, each supporting a high-resolution electrode lifting column. The lifting column is equipped with a flexible horizontal electrode cross arm, and the water-cooled electrode clamp at the end of the cross arm can quickly respond to control system instructions and accurately adjust the electrode position. The electrode lifting column can capture subtle changes in the arc power inside the furnace in real time. Under the precise instructions of the intelligent automatic control system, the electrode position can be quickly and accurately adjusted to maintain the stability of the arc length and ensure that the arc power input into the furnace remains constant throughout the entire melting process, meeting the strict requirements for temperature stability in chromium oxide melting.

6. Performance advantages
High purity product guarantee
Efficient melting operation
Flexible process adaptation
Energy saving and environmental protection features