Audited Supplier
Electric arc furnace
2.According to the furnace cover rotating mechanism, it can be divided into independent foundation, foundation connected, large rotary bearing, and four-bar linkage structure types;
3.There are two types of operation modes: left operation and right operation;
4.According to the loading method, it can be divided into continuous feeding and discontinuous feeding.
5.Divided into DC electric furnace and AC electric furnace according to current.
6.Electric arc furnace equipment is composed of furnace body, furnace cover, tilting device, furnace cover lifting and rotating mechanism, electrode lifting mechanism, water cooling device, hydraulic device, electric furnace transformer, short network, high voltage cabinet, low voltage electrical appliances, and automation control system,The furnace tonnage ranges from 0.5t to 350t.
7.At present, SanRui Company can provide 0.5-120T AC arc furnaces and 0.5-50T DC arc furnaces.
High current system
1. Adopt a new energy-saving electric furnace transformer specialized for well-known domestic brands.
2. Large section water-cooled cable.
3. Copper steel composite/aluminum magnesium alloy conductive cross arm.
4. Customized alloy seamless tube processing water-cooled furnace cover, with an increase in usage times to over 10000 times.
5. The conductive chuck is made of chrome plated copper forgings, which have high-quality conductivity and super long service life.
SR control system
1.The operation is simple, intuitive, and the human-machine dialogue effect is very friendly.
2.The electrode lifting speed range is large and the action is fast, and the electrode can move sensitively during the smelting process.
3.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.
4.The system has a short response time and high adjustable accuracy.
5.Stable arc block and accurate current regulation. Less impact on the power grid.
6.Adopting PLC photoelectric isolation control technology, it has strong anti electromagnetic interference ability. Coupled with modular design, it works stably, reliably, and in case of faults The extremely low rate has energy-saving characteristics.
7.Using PLC programming for complex calculations, three-phase power, current, voltage balance control, etc., program data adjustment is easy to operate and maintain convenient.
8.High degree of digital automation, comprehensive data management, reserved communication interface for communication with the upper computer, achieving informationization of production management.
Parameters of Sanrui Electric Arc Furnace
| Type | Furnace shell diameter(mm) | Capacity (t) Rated/maximum | Transformer | Diameter of electrode distribution circle (mm) | Electrode diameter (mm) | |
| capacity (MVA) | Secondary voltage(V) | |||||
| HX-0.5 | 1700 | 0.5/1 | 0.63 | 200-98 | 620 | 150 |
| HX-1.5 | 2300 | 1.5/4 | 1.6 | 210-104 | 680 | 200 |
| HX-3 | 2700 | 3/5 | 2.2 | 210-104 | 750 | 250 |
| HX-5 | 3200 | 5/8 | 3.2/4.0 | 221-110 | 850 | 300 |
| HX-10 | 3500 | 10/15 | 6.3 | 260-139 | 1000 | 350 |
| HX-15 | 3800 | 15/20 | 8 | 260-139 | 1000 | 350 |
| HX-20 | 4000/4200 | 20/25 | 12.5 | 340-1195 | 1050 | 400 |
| HX-30 | 4600 | 30/45 | 25 | 570-350 | 1100 | 450 |
| HX-40 | 4800 | 40/60 | 32 | 650-350 | 1100 | 450 |
| HX-50 | 5000 | 50/65 | 32/40 | 436-185 | 1100 | 500 |
| HX-60 | 5200 | 60/75 | 36/50 | 670-370 | 1150 | 500 |
| HX-70 | 5600 | 70/95 | 50/60 | 800-400 | 1250 | 500 |
| HX-80 | 6100 | 80/100 | 56/64 | 610-250 | 1250 | 550 |
| HX-100 | 6200 | 100/120 | 60 | 800-400 | 1250 | 550 |
| 80 | 920-480 | 1350 | 600 | |||
| HX-120 | 6400 | 120/130 | 72 | 920-480 | 1350 | 600 |
| 90 | 1100-520 | 1350 | 600 | |||
| HX-130 | 7000 | 130/160 | 90 | 1100-520 | 1350 | 660 |
| 120 | 1200-600 | 1400 | 700 | |||
Specific parameters of a 20t electric arc furnace
| project | Unit | Numerical Value | Notes |
| Furnace | |||
| Rated capacity | t | 20 | |
| Average steel output | t | 20 | |
| Maximum steel output | t | 30 | |
| Furnace chamber size | |||
| Inner diameter of furnace shell | mm | 4000 | |
| Furnace shell height | mm | 2600 | |
| Electric furnace transformer | |||
| Rated capacity | KVA | 12500 | Level 9 on load voltage regulation |
| Primary voltage | KV | 35 | |
| Current once | A | 206 | |
| Secondary voltage | V | 340~308~195 | |
| Secondary current | A | 23432 | |
| Current frequency | HZ | 50 | |
| Electrode lifting | |||
| Diameter of graphite electrode | m | Φ400 | High power graphite electrode |
| Diameter of electrode distribution circle | m | Φ950 | |
| Electrode travel | m | 2800 | |
| Electrode lifting control method | PLC+Proportional valve | ||
| Maximum electrode lifting speed | m/min | 12 | When manually operated |
| Minimum electrode deceleration | m/min | 9 | When manually operated |
| Tilt furnace angle for steel tapping direction | |||
| Steel tapping/slag tapping direction | (.) | 20/15 | |
| Furnace cover opening angle | (.) | 82 | |
| Slag removal method | Slag tank | ||
| Furnace cover lifting height | mm | 400 | |
| Hydraulic system | |||
| working pressure | Mpa | 10~12 | |
| Working medium | Water ethylene glycol | ||
| Cooling water consumption | m³/h | ~450 | |
| short network | |||
| Impedance value | mQ | ≤0.65+j2.65 | |
| Three phase impedance imbalance | ≤4% | ||
| Furnace door carbon oxygen gun | |||
| Oxygen consumption (Max) | Nm3 /h | 2000 | |
| Carbon consumption | Kg/T | 3 | Ceramic lined carbon powder tube |
| Oxygen pressure | Mpa | ≥1.0 | |
| water consumption | T/H | 50 | |
Advantages of Sanrui Electric Arc Furnace Technology
1.Low power consumption reduces costs
The high current system of the electric arc furnace uses pure copper as the conductive medium, and the overall circuit resistance is small. Taking into full consideration the skin effect when current passes through a conductor, the cross arm adopts a box shaped copper steel composite plate structure, which can effectively reduce the generation of resistance and heat on the side. Reasonable arrangement of high current system to reduce the impedance of various currents.
2.Safety and stability of electric furnace equipment
The entire hydraulic drive system is equipped with an accumulator, which stabilizes the hydraulic system and ensures more stable operation of the equipment. At the same time, in the event of sudden accidents such as power outages, incomplete equipment operations can continue to be carried out, improving the safety of smelting.
3.Reduce electrode consumption
The use of an anti electrode breakage system can effectively reduce the probability of electrode breakage during the smelting process. Especially in the process of melting scrap steel, avoiding electrode breakage is equivalent to saving an entire furnace of molten steel and reducing economic losses.
The electrical automation control adopts a human-machine interface, which simulates the real furnace body form and is easy to operate. Ingredients, feeding, smelting, and steelmaking can all be operated on a computer.
5.High arc initiation efficiency
Adopting a new type of electrode adjustment system, the electrode lifting control of the electric arc furnace breaks the traditional single signal return control technology. It adopts multi signal acquisition and PLC signal comparison technology to improve the electrode arc starting speed and avoid long-term impact on the upper level power grid system during the arc starting process of the electric arc furnace.
6.Diversified dust removal systems
Our dust removal systems are diverse and can be equipped with different forms of dust removal equipment according to the environmental requirements of different countries.
Electric arc furnaces use electrical energy as a heat source and can adjust the atmosphere inside the furnace, which is extremely advantageous for melting steel grades containing more easily oxidizable elements. By utilizing high-temperature flue gas from electric furnaces and preheating raw materials through technology and equipment, high efficiency, energy conservation, environmental protection, and high yield can be achieved.
With the improvement of electric arc furnace equipment and smelting technology, as well as the development of the power industry, the cost of electric furnace steel continues to decrease. Nowadays, electric furnaces are not only used for producing alloy steel, but also for producing ordinary carbon steel and iron concentrate pellets.
1. As an exporter of small electric arc furnaces in China, Sanrui can provide basic and layout plans
2. Sanrui will send engineers to your factory to install and debug machines, providing reliable after-sales service
3. Sanrui provides training for operation and maintenance personnel, making smelting equipment easy to operate and maintain
4. The purchased electric arc furnace has competitive prices and excellent quality
5. Low investment, high production efficiency, and high return on investment
6. Stable performance of smelting equipment and safe production
7. Purchasing an electric arc furnace can be customized according to differe
nt needs
8. Production capacity can be adjusted according to customer requirements
9. Environmentally friendly and energy-efficient
