Ferroalloy Refining Furnace Introduction
The main mechanical device of Sanui ferroalloy furnace design combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.
Ferroalloy refining furnace is mainly used for desiliconization and refining of ore, high silicon low carbon ferroalloy refining products and flux and other furnace materials, so as to obtain medium carbon, low carbon and micro carbon ferroalloy products;
Ferroalloy Refining Furnace Introduction
As one of the famous ferroalloy submerged arc furnace suppliers in China, the main mechanical device of Sanrui ferroalloy furnace design combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.
Ferroalloy submerged arc furnace adopts hydraulic pressure ring, suspension cylinder hydraulic lifting mechanism, and independently developed ferrosilicon ore furnace electrode adjustment device, which is an automatic control voltage discharge device integrating mechanical, electrical, pneumatic and hydraulic.
Submerged arc furnace ferroalloy also has water-cooled cables, space lattice copper tube short net copper reverse parallel connection, forged copper tiles, etc.
Ferroalloy refining furnace, ferroalloy adopts different smelting methods according to product variety and quality requirements, mainly carbon reduction method (blast furnace, electric furnace), metal heat reduction method and electrolysis method; and can be refined by desiliconization refining, oxygen blowing, vacuum solid decarburization and other methods.
Main Application of Ferroalloy Refining Furnace
Ferroalloy refining furnace is mainly used for desiliconization and refining of ore, high silicon low carbon ferroalloy refining products and flux and other furnace materials, so as to obtain medium carbon, low carbon and micro carbon ferroalloy products;
Currently used for smelting of medium chromium iron, low chromium iron, low micro chromium iron, nickel iron, manganese iron, high titanium slag, rare earth alloy, zirconium and other ferroalloy products.
Users can choose to design and manufacture ferroalloy refining furnace equipment according to the smelting alloy variety and process parameters.
Characteristics of Ferroalloy Refining Furnace Equipment
1. The ferroalloy refining furnace has a low hood structure.
2. Semi-enclosed low smoke hood structure ferroalloy submerged arc furnace.
3. Steel tapping method: high and low package
4. A type similar to an electric arc furnace, using graphite or carbon electrodes, with functions such as electric arc heating, furnace body tilting, iron tapping, slag removal, and furnace top feeding required by the process;.
5. A type similar to a reduction electric furnace, equipped with continuous self-baking electrodes, the furnace body has various forms such as fixed and rotating, and adopts a closed (or semi-closed) fixed furnace cover; the iron tapping, slag removal and automatic feeding system for the smelting process are consistent with the operation of the reduction electric furnace.
6. The ferroalloy submerged arc furnace short network (bus bar system) adopts a water-cooled compensator, water-cooled copper pipe, water-cooled cable and water-cooled conductive plate, and adopts a new energy-saving short network structure with an outer triangle layout.
7. Circulating water cooling, and the equipment is required to have a high-level backup water system to prevent damage to components caused by sudden power outages, and an over-temperature automatic alarm system is adopted.
8. The submerged arc furnace ferroalloy tilting mechanism adopts a large roller structure, and the furnace body has no horizontal displacement during tilting, and the package is fixed during steel tapping, which improves safety.
9. All secondary gears of the transformer adopt constant power to maximize the utilization rate of the transformer, and the natural power factor of the transformer reaches more than 92%.
Ferroalloy Refining Furnace Equipment Composition
The ferroalloy refining furnace is mainly composed of furnace body, furnace shell, semi-enclosed furnace cover, furnace lining, short-grid system, water cooling system, smoke exhaust system, dust removal system, electrode shell, electrode holder, electrode pressing and lifting system, loading and unloading system, gripper, burn-through device, hydraulic system, cooling water system, short-grid system, submerged arc furnace transformer and high-voltage control and protection system, low-voltage control and protection system, discharging system, computer operating system, water-cooling cable, etc.
Other accessories, dust removal, cooling tower system, etc. can be provided as needed.
Sanrui Ferroalloy Refining Furnace Technical Advantages
Semi-enclosed low smoke hood structure.
Optimize submerged arc furnace ferroalloy short network (bus bar system) technology, guarantee three-phase balance and minimize impedance value.
Fully automatic feeding, multiple points of material distribution in the furnace, continuous feeding and continuous smelting, automatic matching and automatic adjustment of feeding speed and electrode input power.
Fully automatic feeding, multipoint distribution in the furnace, continuous feeding and smelting, automatic matching and automatic adjustment of feeding speed and electrode input power.
Automatic regulation technology of electrode lifting realizes automatic smelting, power regulation, high electrical efficiency and low power consumption.
Furnace wall and bottom temperature automatic detection and alarm system to ensure safe production.
Simple and intuitive operation, very friendly human-computer interaction effect.
Low investment, quick effect and low energy consumption.
Strong processability and advanced software programming.
Main Technical Parameters of Ferroalloy Refining Furnace
| Model | Capacity(KVA) | Inner Diameter of Furnace Body (mm) | Secondary Voltage（V） | Electrode Diameter（mm） | Diameter of electrode distibution circle(mm) | Smelting type |
| 1250KVA | 1250 | 3000 | 200～60 | 250 | 800 | Ferrovanadium Ferronickel Medium manganese Ferrochrome |
| 1500KVA | 1500 | 3200 | 200～90 | 300 | 900 | |
| 2200KVA | 2200 | 3500 | 160～80 | 300 | 900 | |
| 2500KVA | 2500 | 3800 | 240～104 | 300 | 950 | |
| 3000KVA | 3000 | 4100 | 270～135 | 350 | 1000 | |
| 3600KVA | 3600 | 4500 | 290-255-155 | 400 | 1200 | |
| 4500KVA | 4500 | 4800 | 305-265-162 | 400 | 1250 | |
| 6300KVA | 6300 | 5200 | 312-282-170 | 400 | 1300 | |
| 7000KVA | 7000 | 5000 | 320-288-182 | 400 | 1350 | |
| 9000KVA | 9000 | 5500 | 328-294-188 | 450 | 1400 | |
| 12000KVA | 12000 | 6500 | 336-302-194 | 450 | 1450 |
Scope of Ferroalloy Refining Furnace Supply
As one of the famous ferroalloy submerged arc furnace suppliers in China, provide customized ferroalloy refining furnace OEM manufacture service as follows:
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 cover, 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 column, electrode shell, electrode clamping device, electrode pressing device, electrode lifting device, electrode guide and distribution circle adjustment, steel platform
Burning device: burning device short network, burning device guide rails and guide rods, burner body, graphite electrode, insulating material
Cooling water system: water inlet distributor, return water collection tank, cooling water pipe, return water pipe, pressure gauge, thermometer, valve
Hydraulic system: electrode clamping cylinder, friction ring clamping and releasing cylinder, electrode pressing and releasing cylinder, hydraulic pump station, motor, control valve, accumulator, external oil pipe
Ferrosilicon furnace transformer
Low-voltage electrical system: low-voltage electrical control, low-voltage power supply cabinet, low-voltage protection cabinet, electrode lifting control console
Discharging system: discharging pot, discharging car
Loading winch
Ferroalloy Refining Furnace Smelting Process
01
Ferroalloy refining furnace is the main equipment for smelting ferroalloys. Ferroalloy electric furnaces are divided into two categories: reduction furnaces and refining furnaces. Reduction furnaces are also called submerged arc furnaces or ore-fired electric furnaces. They adopt submerged arc operation with electrodes inserted into the charge. Reduction furnaces are open, closed (or semi-closed), and the furnace body is fixed, rotating, and other forms. Refining furnaces are used to refine medium-carbon, low-carbon, and micro-carbon ferroalloys. The capacity of the electric furnace is generally 1500 to 6000 kVA, and it adopts an open fixed or covered tilting form. The former is similar to the reduction furnace and can be equipped with continuous self-baking electrodes; the latter is similar to the electric arc steelmaking furnace and uses graphite or carbonaceous electrodes.
02
With the continuous development of technology, the electric arc furnace steelmaking process has also undergone great changes. During the melting period, auxiliary energy is used to accelerate melting, such as injection of oil-oxygen, natural gas-oxygen or pulverized coal-oxygen. The melting time of each furnace is shortened by 15 ~20min, power consumption can be reduced by 50~60kWh/t;
03
The ferroalloy refining furnace adopts intermittent smelting method, and the charge is added to the furnace in batches or in batches. It is generally divided into two periods: melting and refining. During the melting period, the electrode is buried in the charge; while during the refining period, the arc is exposed. After the refining is completed, the alloy and slag are discharged, and new materials are loaded to continue the next furnace smelting.
04
Since the intermittent smelting method is carried out periodically, it is also called the periodic smelting method.
05
In view of the different operating process characteristics of each period of smelting, the operating power is also different. Intermittent smelting is used to smelt medium and low carbon ferromanganese, medium, low and micro carbon ferrochrome, etc.
Sanrui Ferroalloy Refining Furnace Technology Optimization
Using the best available submerged arc furnace ferroalloy technology (BAT), the ferroalloy submerged 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, large-section water-cooled cable technology, PLC control technology, high impedance technology, auxiliary energy technology such as carbon-oxygen gun oxygen burner, oxygen-enriched operation technology and hot iron charging technology.
We provide a series of furnace cover designs to adapt to different ferroalloy refining furnace applications. The closed furnace cover solution makes smelting and maintenance safer. The furnace cover is usually made of water-cooled steel plate, but a combined solution combining water-cooled steel plate and refractory materials can also be used. The airtight seal ensures low emissions and efficient collection and utilization of CO gas.
Minimizes energy, coke and electrode paste consumption
Achieves high productivity and metal recovery, especially when using pellets
Purified CO gas can be used effectively in different plant applications
Preheating to 600ºC saves 70 kWh per ton of metal smelted for every 100ºC increase in temperature
Allows you to reduce operating costs and reduce CO₂ and dust emissions
Services Provided by Sanrui
1. As one of the famous ferroalloy submerged arc furnace suppliers in China, Sanrui can provide basic ferroalloy refining furnace layout and layout drawings
2. Sanrui will send engineers to your factory to install and debug the machine, and provide reliable after-sales service.
3. Sanrui provides training for operators and maintenance personnel, and the smelting equipment is easy to operate and maintain
4. Competitive price and excellent quality
5. Low investment, high production efficiency, high rate of return
6. Stable performance of smelting equipment, safe production
7. Ferroalloy furnace can be customized according to different needs
8. Production capacity can be adjusted according to customer requirements
9. Environmentally friendly, low energy consumption
As one of the famous ferroalloy submerged arc furnace suppliers in China, Sanrui provides ferroalloy furnace engineering consulting, R&D, design, equipment supply, system integration and software development, 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 detailed project requirements, and our engineering team will design a ferroalloy refining furnace production line 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.
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.
Titanium slag production adopts titanium slag electric furnace (circular furnace and rectangular furnace according to its shape) smelting process.
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.
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.
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.
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
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.
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.
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.
Navigation
E-mail: anna@srfurnace.com
Tel: +86 159 2955 5868
WhatsApp: +86 159 2955 5868
Add:
Room 102, Building 7A, Free Trade Xintiandi, Fengdong Avenue, Fengdong New Town, Xi'an City, Shaanxi Province
