Pig Iron Production in Submerged Arc Furnace

Pig iron production in submerged arc furnaces is not well-known. The submerged arc furnace is mainly used for reducing and smelting ores, carbonaceous reducing agents, solvents, and other raw materials. It mainly produces ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon manganese alloy, silicon chromium alloy, industrial silicon, calcium carbide, high titanium slag, and other ferroalloys, which are important industrial raw materials in the metallurgical industry and chemical raw materials such as calcium carbide.

The submerged arc furnace is an industrial electric furnace that uses carbon or magnesia refractory materials as the furnace lining, uses self-training electrodes, inserts the electrodes into the furnace charge for submerged arc operation, uses the energy and current of the arc to produce energy through the furnace charge due to the resistance of the furnace charge to smelt metal, successively charge, intermittently discharge iron slag, and continuously operate.

Main Equipment of Large Current System of Submerged Arc Furnace:

Combined holder

Bellows pressure ring holder

Tubular short net structure

Furnace transformer

Combined Holder

The combined gripper is a new type of combined gripper technology, including the pressure relief device. It is completely different from the traditional way, which not only simplifies the pressure release mechanism of the holder, but also adapts to electrodes of different diameters. Due to the corresponding change in the rib structure of the electrode shell, the current distribution on the electrode cross-section is more balanced, which is conducive to accelerating the electrode sintering and avoiding the occurrence of electrode accidents. At the same time, because the composite holder is rib conductive, the current flows directly to the center of the electrode through the rib of the composite holder, fundamentally changing the traditional surface conductivity and then to the center of the electrode. It is precise because of the different conductive principles that the electrode sparking phenomenon is solved, so the starting rate of the electric furnace is greatly improved, and the problem of the starting rate of the electrode is fundamentally solved. At the same time, the combined controller has a long service life, and can be repaired and reused to reduce production costs. It can not be solved by conductive copper tiles and has the advantages of reliable operation and a high operation rate.

Bellows Pressure Ring Holder

The main structural feature of the corrugated pipe pressure ring type holder is that the clamping copper tile part is a corrugated pipe clamping ring. It is composed of a water-cooled protective sleeve, water-cooled pressure ring, water-cooled pressure bellows, and hydraulic medium. In the clamping ring, the corrugated pipe presses the forged copper tile one-to-one to ensure that the gripping force of each copper tile to the electrode is balanced, and the pressure of the copper tile to the electrode is easy to adjust. It has the advantages of stable pressure, good randomness, and easy automatic pressing and adjusting.

Tubular Short Net Structure

The tubular structure short network is composed of copper tubes, and the flexible part is a water-cooled cable. The whole system is cooled by soft water. This short network structure has the advantages of reliable technology, strong current carrying capacity, good electrical performance, lightweight, less investment, etc. At the same time, it is an ideal match for the new controller system, and it realizes the "one-to-one" between the transformer outlet and the conductive parts. It is a practical technology worth popularizing.

Furnace Transformer of Pig Iron Production in Submerged Arc Furnace

All furnace transformers are designed by computer optimization. New technologies, new materials, and new processes are applied to make the products have low loss and high mechanical strength. It is made of a high-quality cold-rolled silicon steel sheet with high magnetic conductivity, oxygen-free copper electromagnetic wire, and other high-quality materials. The optimized magnetoelectric balance technology is used to make the dynamic and thermal stability excellent. The internal multi-point positioning, full anti-loosening treatment of fasteners, and no core lifting on site. The anti-oil aging measures of the fully sealed diaphragm oil conservator are reliable, and the sealing structure ensures no leakage.

Product Development Direction

Regarding pig iron production in submerged arc furnace, the submerged arc furnace equipment is developing towards large-scale, automation, closed type, environmental protection, and energy conservation. Our company has designed and manufactured ferromanganese, ferrosilicon, and ferrochrome electric furnaces with a capacity of 33000KVA; 3500KVA - 6300KVA refining electric furnace; 6300KVA DC electric furnace; 25000KVA industrial silicon electric furnace; 45000KVA calcium carbide furnace; 36000KVA ferrosilicon aluminum furnace. The production indicators have reached the best level and are highly praised by users.

Looking for a submerged arc furnace, please feel free to contact me.

Email: [email protected]; [email protected].

WhatsApp & WeChat: +8618392033938.

Website: www.hanmetallurgy.com; www.hanrm.com.