Ferronickel Submerged Arc Furnace Introduction
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, and heat them through electrodes to make the raw materials react chemically at high temperature to smelt nickel-iron alloy.
Ferronickel Submerged Arc Furnace Introduction
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, and heat them through electrodes to make the raw materials react chemically at high temperature to smelt nickel-iron alloy.
The smelting temperature of the ferro nickel melting furnace is usually between 1600-1700℃, which is a high-temperature ferronickel SAF smelting furnace equipment.
Main Application of Ferronickel Arc Furnace
The Ferro nickel melting Furnace is mainly used in the production of nickel ferron alloy.
Qualified sintered nickel ore, carbonaceous reducing agent (such as coke) and limestone and other raw materials are added into the nickel-iron furnace according to a certain proportion.
The raw materials are heated by electrodes to cause a chemical reaction at high temperature and smelt to obtain nickel-iron alloy.
Characteristics of Ferronickel Furnace Equipment
1. Cylindrical, fixed, low smoke hood ferronickel submerged arc furnace factory.
2. Ferro-nickel furnace bottom cooling method: natural air cooling
3. Self-baking electrode, the electrode lifting adopts hydraulic manual and computer-controlled automatic lifting, the electrode is clamped by cone ring, the conductive plate hydraulic cylinder is loosened, two sets of friction rings and lifting cylinders are used to achieve automatic fixed-length pressing and release, and the electrode distribution circle diameter can be adjusted.
4. The short network (bus bar system) adopts 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 outer triangle arrangement.
5. The ferro-nickel furnace feeding system is high-level silo sliding pipe feeding or manual feeding in front of the furnace.
6. Smoke hood: cylindrical, water-cooled metal frame, movable water-cooled metal cover plate structure.
7. Circulating water cooling, and the equipment is required to have a high-level backup water system to prevent damage to parts caused by sudden power outages, and an over-temperature automatic alarm system is used.
Ferronickel Submerged Arc Furnace Equipment Composition
The ferronickel 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 network 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 Ferronickel Alloy Furnaces Technical Advantages
Closed furnace type, micro-positive pressure operation, automatic furnace pressure adjustment.
Optimize short-circuit technology to ensure three-phase balance and minimum impedance value.
Fully automatic feeding, multi-point feeding in the ferronickel SAF furnace, continuous feeding, continuous smelting, automatic matching and automatic adjustment of feeding speed and electrode input power.
Automatic electrode lifting and lowering adjustment technology to achieve automatic smelting, power adjustment, high electrical efficiency and low power consumption.
Automatic detection and alarm system for furnace wall and furnace bottom temperature to ensure safe production.
Simple and clear operation, easy maintenance.
Strong processability and advanced software programming.
Main Technical Parameters of 25.5MVA Ferronickel Submerged Arc Furnace
| S/N | Items | Unit | Parameter | Remark |
| 1 | Transformer apparent power | kVA | 3×8500 | Three single-phase furnace transformers |
| 2 | Primary voltage | kV | 35 | |
| 3 | Secondary voltage | V | 133-160-199-399 | |
| 4 | Secondary voltage level | 43 | 3V/3V/10V | |
| 5 | Furnace type | Cylindrical, fixed, low-hooded ferronickel submerged arc furnace | ||
| 6 | Production type | Ferronickel (high-carbon ferrochrome) | ||
| 7 | Furnace shell diameter | mm | 13500-14000 | inner diameter |
| 8 | Furnace shell height | mm | 5800 | The furnace shell extends out of the second floor platform 120 |
| 9 | Furnace hearth diameter | mm | 12000 | |
| 10 | Furnace hearth depth | mm | 3000 | |
| 11 | Iron outlet | 个 | 2个 | Angle 150° |
| 12 | Hood height | mm | 2200 | |
| 13 | Electrode diameter | mm | 1150 | Self-baking electrode |
| 14 | Number of electrodes | 根 | 3 | Inverted triangle arrangement |
| 15 | Electrode working stroke | mm | 1200/2000 | The denominator is the maximum stroke of the electrode |
| 16 | Electrode lifting speed | m/min | 0.5 | |
| 17 | Pole center diameter | mm | 3000±100 | Adjustable |
| 18 | Common secondary voltage | V | 269 | |
| 19 | Common secondary current | A | 48293 | |
| 20 | Power factor | cosφ | 0.82 | |
| 21 | Electrode current density | A/cm2 | 4.09 | |
| 22 | Pole center power density | kw/m2 | 3185 | |
| 23 | Furnace hearth area power density | kw/m2 | 279 | |
| 24 | Furnace hearth volume power density | kw/m3 | 93 | |
| 25 | Number of material pipes in the furnace | stick | 10 | |
| 26 | Operation platform height | mm | 5200 | |
| 27 | Transformer platform height | mm | 8600 | |
| 28 | Electrode pressing and releasing platform height | mm | 15000 | |
| 29 | Furnace top material bin platform height | mm | 22000 | |
| 30 | Furnace top hanging rail height | mm | 28000 |
Scope of Ferronickel Alloy Furnace Supply
Sanrui Electric Furnace ias the ferronickel submerged arc frunace factory and supplier. Sanrui can provide customized ferro nickel melting furnaces and their accessories. Some ferro-nickel furnace spare parts can be customized according to drawings as following:
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 net 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
Burning device: burning device short net, 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
Ferronickel submerged arc 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
Ferronickel Furnace Steelmaking Process
01
The process flow of smelting nickel iron in ferro-nickel furnace is: nickel ore → dehydration, agglomeration → adding coke and flux → ferronickel submerged arc furnace smelting → crude nickel iron → C, Si, P, S refining → nickel iron.
02
The electric furnace method uses C as a reducing agent to reduce Ni0, Fe0 and other oxides in nickel ore under high temperature conditions of electric energy to smelt nickel iron. Therefore, in the process of electric furnace smelting, adjusting the appropriate carbon amount and limiting Fe0 reduction can produce electric furnace nickel ferron with a high Ni content.
03
This process is mainly used for pyrometallurgical smelting of nickel ferron abroad, and it is also widely used by domestic manufacturers when producing products containing more than 10% Ni. The main smelting equipment is the ferronickel furnace. Some domestic manufacturers also use electric furnaces with similar structures to electric arc furnaces (the maximum capacity of their equipment is 9MVA). Their nickel ore pretreatment methods, specific operations of the smelting process, matching of refining process equipment and refining effects are not the same, and there are certain differences in the comparison of various indicators.
04
This process can produce ferronickel of any nickel content using any iron-nickel grade ore. Technically, this is achieved by controlling the reduction rate of iron in the rotary kiln stage (all of the nickel is reduced to metal, and part of the iron is reduced to metal and low-valent oxides). This is the biggest feature of this process and the reason for its vitality. However, the production cost is relatively high due to the huge power consumption of the blast furnace. In addition, Ferronickel furnace factories cannot be built in areas with power shortages.
Sanrui Ferronickel Alloy Furnace Technology Optimization
Introduce advanced smelting equipment and control systems to improve the operating efficiency and stability of nickel-iron furnaces.
Improve Ferronickel SAF furnace structure and refractory materials to reduce heat loss and improve energy efficiency. ,
Use energy-efficient burners and waste heat recovery technology to reduce energy consumption.
Strictly control exhaust gas emissions and reduce pollutant emission concentrations through desulfurization, dust removal and other processes.
Optimize Ferronickel SAFfurnace charge ratio to improve raw material utilization and product quality.
Improve Ferronickel SAF smelting technology to reduce energy consumption and pollutant emissions during smelting.
Introduce advanced automation technology to improve the intelligence level of the smelting process.
Services Provided by Sanrui
1. As ferronickel submegred arc furnace factory in China, Sanrui can provide basic Ferronickel Submerged Arc 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. Products can be customized according to different needs
8. Production capacity can be adjusted according to customer requirements
9. Environmentally friendly, low energy consumption
Sanrui provides 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 Ferronickel Submerged Arc Furnace 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.
Titanium slag production adopts titanium slag electric furnace (circular furnace and rectangular furnace according to its shape) smelting process.
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.
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 ferrosilicon furnace combines China's national conditions and draws on international advanced technologies such as Demark and Pyremate.
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.
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. It mainly produces ferroalloys such as ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloy, etc.
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.
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.
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
