Introduction to Submerged Electric Arc Furnace
Submerged electric arc furnace is mainly used for reducing and smelting raw materials such as ore, carbonaceous reducing agent and solvent.
Submerged arc furnace mainly produces ferroalloys such as ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloy, etc.
The main mechanical device design of Sanui submerged electric arc furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.
Introduction to Submerged Electric Arc Furnace
The main mechanical device design of Sanui submerged electric arc furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate. It adopts hydraulic pressure ring, suspension cylinder hydraulic lifting mechanism, and independently developed submerged arc furnace electrode adjustment device, which is an automatic control voltage discharge device integrating machinery, electrical appliances, pneumatics, and hydraulics, water-cooled cables, space lattice copper tube short net copper reverse parallel connection, forged copper tiles, etc.
Submerged electric arc furnace is mainly used for reducing and smelting raw materials such as ore, carbonaceous reducing agent and solvent.
It mainly produces ferroalloys such as ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloy, etc. Its working characteristics are that it uses carbonaceous or magnesia refractory materials as furnace lining and uses self-training electrodes.
The electrode is inserted into the charge for submerged arc operation, and the energy of the arc and the current passing through the charge are used to generate energy due to the resistance of the charge to melt the metal, and the charge is added successively, and the iron slag is discharged intermittently. It is an industrial electric furnace with continuous operation.
Main Uses of Submerged Electric Arc Furnace
SAF mainly used to produce ferroalloys (such as ferrotungsten, high carbon ferromanganese, high carbon ferrosilicon, high carbon ferrochromium, ferronickel alloys).
SAF also used to produce industrial silicon, calcium carbide, corundum, yellow phosphorus, etc.
Submerged arc furnaces are used in steel, non-metal and other industries.
Characteristics of Submerged Electric Arc Furnace Equipment
1. High Temperature and Low Energy Consumption
The working temperature of the submerged arc electric furnace is as high as over 1500°C, so it can melt many high melting point metals and compounds. At the same time, because it can use waste gas such as blast furnace gas as fuel, the energy consumption during the smelting process is relatively low.
2. High Production Efficiency
The submerged arc furnace has a fast smelting speed, can handle a large amount of ore, and has the characteristics of continuous operation and efficient operation.
3. Reusable
The metal materials obtained by smelting in submersible arc furnaces can be reused, saving raw materials and reducing waste, which is in line with the concept of sustainable development.
4. Working Characteristics
Its working characteristics are that it uses carbon or magnesium refractory materials as furnace lining and uses self-training electrodes.The electrode is inserted into the charge for submerged arc operation, and the energy of the arc and the current passing through the charge are used to generate energy due to the resistance of the charge to melt the metal. The charge is added successively, and the iron slag is discharged intermittently. It is an industrial electric furnace that operates continuously.
5. The Load of the Transformer of the Submerged Electric Arc furnace is Continuous and Stable
The load of the transformer of the submerged arc electric furnace is continuous and stable, with low impedance voltage, more voltage regulation levels, smaller level difference and strong overload capacity.It can be divided into two types: load and non-excitation voltage regulation. Generally, the first few levels have constant capacity output, and the last few levels have constant current output.
Submerged Electric Arc Furnace Equipment Composition
The Submerged Arc Electric Furnace provided by submerged arc furnace suppliers mainly consists of furnace shell, furnace hood, furnace cover, furnace lining, short mesh system, water cooling system, smoke exhaust system, dust removal system, electrode shell, electrode holder, electrode pressure and lifting system, loading and unloading system, and controller , burn-through device, hydraulic system, cooling water system, tap casting system, submerged arc furnace transformer and high-voltage control and protection system, low-voltage control and protection system, computer operating system, water-cooled cable, etc.
Other accessories, dust removal, cooling tower systems, etc. are available as needed.
Sanrui Submerged Electric Arc Furnace Technical Advantages
The operation is simple and intuitive, and the human-machine dialogue effect is very friendly;
The electrode lifting speed adjustment range is large and the electrode can be raised quickly;
The non-sensitive area is continuously adjustable, and the size of the non-sensitive area can be adjusted at any time according to the furnace conditions; the system response time is short and the adjustment accuracy is high;
Fast arc stabilization, accurate current regulation, and small impact on the power grid;
Due to the use of PLC photoelectric isolation control, it has strong anti-electromagnetic interference capabilities. In addition, the system adopts a modular design, which makes the operation stable and reliable, and the failure rate is extremely low;
Using PLC programming, more complex calculations can be performed, such as three-phase power, current, voltage balance control, etc., and program modification is extremely convenient;
The operation is simple and clear, and the maintenance is convenient;
Low investment, quick results and low energy consumption.
It has strong craftsmanship and advanced software programming.
Main Technical Parameters of Submerged Electric Arc Furnace
| Capacity | Furnace Type | Materials | Secondary Voltage | Working Voltage | Dia of Electrode | Electrode distribution circle | Dia of Furnace Shell | Height of Furnace Shell |
| 6300KVA | Lower Gas Hood Semi-closed | Silicon iron | 94~126V | 110V | φ780 | φ2000 | φ6100 | 3600 |
| Manganese iron | 94~126v | 106V | φ780 | φ2000 | φ6200 | 3600 | ||
| Manganese-silicon alloy | 94~126V | 106V | φ780 | φ2000 | φ6200 | 3600 | ||
| High-carbon chromium iron | 94~126V | 106V | φ780 | φ2000 | φ6200 | 3600 | ||
| Silicon | 100~132V | 130V | φ600 | φ1900 | φ5900 | 3400 | ||
| Ferronickel | 128~272V | 200V | φ720 | φ2100 | φ7200 | 4200 | ||
| 12500KVA | Lower Gas Hood Semi-closed | Silicon iron | 120~168V | 141V | φ1020 | φ2600 | φ7600 | 4300 |
| Manganese iron | 120~168V | 138V | φ1020 | φ2600±50 | φ7600 | 4300 | ||
| Manganese-silicon alloy | 120~168V | 138V | φ1020 | φ2500±50 | φ7600 | 4300 | ||
| High-carbon chromium iron | 120~168V | 146V | φ1020 | φ2600 | φ7600 | 4300 | ||
| Silicon | 120~184V | 152V | φ900 | φ2500 | φ7300 | 4200 | ||
| Ferronickel | 222~322V | 250V | φ960 | φ2800 | φ8500 | 4800 | ||
| 16500KVA | Lower Gas Hood Semi-closed | Silicon iron | 136~190V | 154V | φ1200 | φ3000 | φ8200 | 4400 |
| Manganese iron | 136~190V | 144V | φ1200 | φ3200 | φ8600 | 4800 | ||
| Manganese-silicon alloy | 136~190V | 147V | φ1200 | φ3100±50 | φ8600 | 4800 | ||
| High-carbon chromium iron | 136~190V | 158V | φ1200 | φ3000 | φ8600 | 4800 | ||
| Ferronickel | 248~392V | 320V | φ1050 | φ3500 | φ9800 | 5200 | ||
| 25000KVA | Lower Gas Hood Semi-closed | Silicon iron | 90~180~240V | 200V | φ1250 | φ3200±100 | φ8600 | 4600 |
| Manganese iron | 130~169~208V | 181V | φ1300 | φ3800±100 | φ8600 | 5300 | ||
| Manganese-silicon alloy | 130~169~211V | 184V | φ1300 | φ3600±100 | φ8600 | 5300 | ||
| High-carbon chromium iron | 150~220~260V | 210V | φ1300 | φ3600±100 | φ8800 | 5300 | ||
| Ferronickel | 300~460V | 380V | φ1220 | φ3900 | φ11500 | 5600 |
Scope of Submerged Electric Arc Furnace Supply
As one of famous submerged arc furnace suppliers in China, Sanrui provide submerged arc furnace for sale with competitive price.
Raw material supply system: hopper, feeding pipe
Furnace body: furnace body, furnace shell, furnace bottom support beam, furnace top ring, furnace lining
Semi-enclosed furnace cover: semi-enclosed furnace top, furnace cover side panels and furnace door, electrode sealing device, chimney, outlet smoke hood and exhaust pipe
Short network: compensator, conductive copper bar, short network hanging system, collector ring and bracket, cable, conductive plate
Electrode device: electrode holding tube, electrode shell, electrode clamping device, electrode pressing device, electrode lifting device, electrode guide and distribution circle adjustment, steel platform
Short network: stainless steel bracket, compensator, water-cooled cable, stainless steel bracket, water-cooled conductive copper pipe
Cooling water system: water inlet distributor, return water tank, pressure gauge, thermometer, valve
Hydraulic system: motor, pump, filter, oil tank, control valve, accumulator
Submerged arc furnace transformer
Low-voltage electrical system
Low-voltage electrical system: low-voltage electrical control, low-voltage power supply cabinet, low-voltage protection cabinet, electrode lifting control console
Automation control system: Siemens PLC
Submerged Electric Arc Furnace Smelting Process
01
Submerged Electric arc furnace (SAF) is a closed environmentally friendly and energy-saving solution, suitable for ferroalloys (such as ferrotungsten, high carbon ferromanganese, high carbon ferrosilicon, high carbon ferrochrome, nickel ferroalloy) and industrial silicon, calcium carbide, corundum , yellow phosphorus, etc. Submerged arc furnace preheating can eliminate water and volatile components, thereby stabilizing smelting process conditions and reducing the unit energy consumption of the furnace.
02
Water injection into the furnace shell and forced ventilation at the bottom of the furnace ensure effective cooling. The thermally conductive carbon lining combined with effective cooling forms a spontaneous freezing layer on the hot side of the lining, minimizing lining erosion and improving thermal efficiency.
03
The characteristics of the submerged electric arc furnace are that it uses carbon or magnesium refractory materials as the furnace lining and uses self-trained electrodes.
04
The electrode is inserted into the charge to perform a submerged arc operation. The energy of the arc and the current passing through the charge are used to generate energy due to the resistance of the charge to smelt the metal. It is an industrial electric furnace that continuously feeds materials, taps iron slag intermittently, and operates continuously.
05
The submerged arc furnace transformer has a continuous and stable load, low impedance voltage, many voltage regulation stages, small step differences and strong overload capability.
06
Submerged arc furnaces can achieve extremely low specific energy consumption, low reducing agent and electrode consumption, and very high production throughputs. The enclosed design also minimizes dust emissions into the factory environment and surrounding atmosphere.
Sanrui Submerged Electric Arc Furnace Technology Optimization
Using the best available technology (BAT), the submerged electric arc furnace designed and manufactured by Sanrui adopts advanced tubular water-cooled furnace cover technology, tubular water-cooled furnace wall technology, copper-steel composite plate conductive cross arm technology, EBT tapping technology, large Cross-section water-cooled cable technology, PLC control technology, high-impedance technology, auxiliary energy technology such as carbon-oxygen lance and oxygen burner, oxygen-enriched operation technology and hot-metal hot charging technology, etc.
We offer a range of furnace cover designs to suit different submersible furnace applications. Closed furnace lid solutions make smelting and maintenance safer. Furnace lids are usually made of water-cooled steel plates, but combined solutions combining water-cooled steel plates and refractory materials are also available. The air-tight seal ensures low emissions and efficient collection and utilization of CO gas.
Minimize energy, coke and electrode paste consumption
Achieve high productivity and metal recovery, especially when using pellets
Purified CO gas can be effectively utilized in different factory applications
Preheat to 600ºC, each 100ºC temperature rise saves 70 kWh per ton of metal smelted
Allows you to reduce operating costs and reduce CO₂ and dust emissions
Services Provided by Sanrui
1. As one of famous submerged arc furnace suppliers in China, Sanrui can provide basic layout and layout drawings
2. Sanrui will send engineers to your factory to install and debug the machine, providing trustworthy after-sales service.
3. Sanrui provides operation and maintenance personnel training, and the smelting equipment is easy to operate and maintain.
4. Submerged arc furnace for sale with competitive price and excellent quality
5. Submerged arc furnace for sale in low investment, high production efficiency and high rate of return
6. Smelting equipment has stable performance and safe production
5. Subemerged arc electric furnace can be customized according to different needs
6. SAF production capacity can be adjusted according to customer requirements
7. Environmentally friendly, low energy consumption
As one of famous submerged arc furnace suppliers in China, Sanrui provides engineering, consulting, R&D, design, equipment supply, system integration and software preparation, construction, installation, commissioning, project management, technical services and training, production guidance, operation and maintenance, spare parts supply and other comprehensive engineering and technical services.
Send us your project details and our team of engineers will design a submerged electric arc furnace price offer and commercial solution based on your needs.
Related Products
Customized metallurgical machinery and equipment range: Electric Arc Furnace, Submerged Arc Furnace, LF Refining Furnace, Vacuum Furnace, Induction Furnace, Dust Remove System, Water Treatment Equipment, etc. Providing the most advanced equipment integration services, metallurgical equipment can be customized according to different needs of customers, and production capacity can be adjusted according to customer requirements.
25500KVA Industrial Silicon Submerged Arc Melting Furnace
Industrial silicon submerged arc furnace is an important equipment in silicon ore processing, playing a key role in the silicon industry.
The design of the submerged arc furnace main mechanical device by Sanui is based on China's national conditions and draws on international advanced technologies such as Demark and Perlmutter.
High Carbon Ferrochrome Furnace
The main mechanical device design of Sanui high carbon ferrochrome furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.
25.5MVA Ferronickel Submerged Arc Furnace
The Ferronickel submerged arc furnace is a special submerged arc furnace used for smelting nickel-iron alloy. Its main function is to add nickel ore, carbonaceous reducing agent (such as coke) and limestone and other raw materials into the furnace in a certain proportion
2×36000KVA Closed Pig Iron Submerged Arc Furnace
The closed pig iron furnace (submerged arc furnace iron making) is a non-blast furnace iron making method. Under the premise of guaranteeing the power supply, it is easy to solve the problem by using the reducing agent required by the submerged arc furnace iron making.
The main mechanical device design of Sanui ferroalloy refining furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.
The main mechanical device design of Sanui ferrosilicon furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.
Manganese Silicon Alloy Furnace
The manganese silicon alloy furnace is mainly used to smelt silicon-manganese alloy, which is an alloy containing silicon and manganese.
Our Completed Projects
Sanrui metallurgy furnace equipment integration services are submerged arc furnaces and electric arc furnaces. Sanrui metallurgy furnaces are manufactured using cutting-edge technology to ensure an efficient, high-quality melting process. These furnaces are capable of melting a variety of materials, including steel, iron and alloys, ferroalloys (such as ferrotungsten, high carbon ferromanganese, high carbon ferrosilicon, high carbon ferrochromium, ferronickel alloys) and industrial silicon, calcium carbide, corundum, yellow phosphorus, etc. with precise temperature control and minimal energy consumption. By using Sanrui metallurgy furnace equipments, metallurgical companies can increase productivity and reduce production costs, ultimately increasing profitability.
Sanrui is well experience in design, manufacturing, installation, commissioning of steelmaking furnace process equipment. Send us your project details inquiry and our team of engineers will design a metallurgical furnace equipment system solution from A to Z based on your needs.
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