50t Precision Engineering Electric Arc Furnace for High Quality Steel Castings

• Customization: Available
• Certification: CE, ISO
• Place Style: Horizontal
• Model NO.: HX-50t
• Range of Applications: Industrial
• Type: Arc Furnace
• Usage: Steel Molding
• Fuel: Electric
• Weight (T): 50t
• Use: Melting Furnace
• Dimension(L*W*H): Customization Size
• Key Selling Points: Energy Saving
• Package: Plywood
• Final Product: Quality Carbon Steel
• Raw Material: Scrap Steel Iron
• Transport Package: Wilding Film + Wooden Case
• Specification: customised
• Origin: Shaanxi China
• HS Code: 8515390000
• Package Size: 180.00cm * 180.00cm * 180.00cm
• Package Gross Weight: 180.000kg

Product Description

Product Description

       

        Xi'an Sanrui Electric Furnace Co., Ltd. is a state-owned enterprise under the Ministry of Metallurgy in China. It was founded in 2009 by a retired Chief Technical Engineer from the Technical Department of Xi'an Heavy Electric Furnace Manufacturing Plant and is registered in Xi'an, Shaanxi Province, China, which has a long history.
     We are now a private high-tech enterprise specializing in the research, development, design, manufacturing, sales, installation, commissioning, and technical services of metallurgical equipment, electric furnace steelmaking, and electric heating equipment. We are an import and export enterprise mainly engaged in the production and manufacturing of metallurgical machinery and equipment. Our company focuses on the production, manufacturing, and sales of metallurgical machinery and related non-standard equipment.

     The steelmaking electric arc furnace is a specialized equipment that uses electric arc as a heat source and scrap steel (iron) as raw material to melt ordinary steel, high-quality carbon steel, alloy steel, and stainless steel. Electric arc is a physical phenomenon generated when current passes through gas. Electric arc can generate high temperatures of about 40000 ° C or above. About 90% of the heat in the furnace comes from electric arc, and other sources of heat include exothermic reactions of materials and electrode combustion. Since the birth of the world's first electric arc furnace in 1889, it has a history of over a hundred years. Its structural types and control methods have gradually improved and matured from simple to complex. Below is a brief introduction to its structural types and technical parameters.

Main purpose

1,Used for smelting low carbon steel and low alloy steel
2,Various alloy steels and stainless steels
3,Used for smelting ordinary steel
4,High quality carbon steel
5,Used for melting ordinary steel, stainless steel, and various alloys
 

Detailed Photos

 

 

Product Parameters

 

Project	parameter	notes
Rated capacity of transformer	3200kVA
Primary voltage	35kV
Secondary voltage	240V~121V	five levels
Pressure regulation method	Non excitation voltage regulation
Inner diameter of furnace shell	φ3200mm
Electrode diameter	φ300mm	graphite electrode
Electrode distribution circle diameter	φ900mm
Furnace capacity	5t(can be overloaded by 20%)
Electrode lifting stroke	1700mm
Electrode lifting speed	4/3 m/min(up/down)
The maximum inclination angle for steelmaking	43°
The maximum inclination angle for slag removal	15°
Open the furnace cover at an angle	85°
Furnace cover lifting height	300mm
Cooling water consumption	40t/h
Average steel output	8t

Note: The above parameters are part of the parameters for 5ton medium frequency furnace and are for reference only. Other capacity parameters and solutions need to be customized by contacting us.

Technological Advantages

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.

4.Easy to operate and convenient
   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.
 

EAF steelmaking process

1, The basic process of electric arc furnace steelmaking includes slag removal and reheating, loading metal furnace materials, power transmission, melting, oxidation, reduction refining, and steelmaking. According to the different characteristics of the steel being smelted, there may be different operating methods, and the smelting process mainly involves three stages of operation: melting, oxidation, and reduction
2, With the continuous development of technology, the electric arc furnace steelmaking process has undergone significant changes. During the melting period, auxiliary energy sources such as oil oxygen injection, natural gas oxygen injection, or coal powder oxygen injection are used to accelerate the melting process. The melting time per furnace has been shortened by 15-20 minutes, and electricity consumption can be reduced by 50-60 kWh/t;  
3, In the oxidation period, measures such as early dephosphorization, enhanced oxygen consumption, powder injection to produce foam slag, rapid temperature rise, etc. can reduce the amount of oxidative decarbonization from 0.3% of the traditional process to 0.1%~0.15%, thus reducing the oxidation period by more than 50%.
4, During the reduction period, the traditional process of diffusion deoxidation is mainly replaced by precipitation deoxidation, with diffusion deoxidation as a supplement. White slag or carbide slag needs to be produced, and each furnace requires 3-4 hours of smelting, with a high electricity consumption of 600-700 kWh/t. Not only can it achieve the expected refining effect, but the steel quality is guaranteed and the reduction time is shortened by more than 60%.
5, The improvement of process ensures the quality of molten steel while increasing productivity by about 20%, reducing electricity consumption by 10% to 15%, and electrode consumption by about 8%, achieving considerable economic benefits.

 

Services provided by SanRui

 

   After optimizing the electric arc furnace technology, Sanrui has achieved the optimal balance between raw materials, scrap preheating, energy conservation and environmental protection, smelting process control, automation control, smelting cycle, and production capacity. The electric arc furnace inputs electrical energy to the electric arc steelmaking furnace through graphite electrodes, using the arc between the electrode end and the furnace charge as the heat source for steelmaking.
   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 different needs
8. Production capacity can be adjusted according to customer requirements
9. Environmentally friendly and energy-efficient

Packaging & Shipping

    1,The customer receives the equipment at their own factory;

    2,Transport the equipment to the designated port according to customer requirements;

    3,Transport according to customer requirements to the designated receiving equipment country and the corresponding factory.