Comprehensive utilization of electric furnace bottom ash/fly ash in direct current arc furnace

Construction features:
Power supply system: It is powered by a DC power supply, usually converted into DC power by transformers and rectification devices, providing stable arc discharge energy for the electrodes. The stability and output power control capability of the power system are crucial for the heating effect and melting speed.   
Electrode system: Electrodes are generally made of silicon carbide or graphite, which have good conductivity and high temperature resistance. The position and spacing of electrodes can affect the stability and energy transfer efficiency of arc melting. Some DC arc furnaces use rotating or inclined electrode designs to improve melting efficiency and pool uniformity.   
Electrode melting system: It is a key component of a DC arc furnace, which generates high temperatures through arc discharge between electrodes and molten metal or materials, melting metal materials or materials such as fly ash.   
Cooling system: used to cool the electrodes and furnace body, ensure the normal operation of equipment, and extend the service life of components, usually including water or air cooling devices.   
Control system: It is the intelligent core of the DC arc furnace, which achieves accurate control and optimization of the melting process inside the furnace by monitoring and adjusting parameters such as power supply, temperature, and atmosphere.   
Advantages:
Efficient and energy-saving: It can achieve high temperature and high energy density melting, with an arc temperature of up to 4000 ℃, which can quickly reach the melting point of the melted material and shorten the smelting time. At the same time, the power factor of the DC arc furnace is as high as 0.95-0.98, which has a significant energy-saving effect compared to traditional AC arc furnaces and can effectively reduce energy consumption.   
High product quality: The temperature of the molten pool in the furnace is uniform, and the electromagnetic stirring characteristics of the DC plasma electric furnace are utilized to increase the fluidity and thermal conductivity of the melt, making the melting process more uniform and conducive to improving product quality, such as producing high-quality metals or alloys such as aluminum silicon iron alloy.   
Good environmental performance: It has a good purification effect on metal materials, and the treatment of waste gas and slag generated during the smelting process is relatively simple, which meets environmental protection requirements. For example, when dealing with fly ash, it can reduce the pollution of solid waste to the environment and achieve resource recycling.   
High metal recovery rate: Combined with its high-temperature melting and electromagnetic stirring characteristics, it can more effectively enrich and separate valuable metals in fly ash, improving the metal recovery rate.   
Application areas:
Metal smelting: It can be used to extract metal elements such as aluminum, iron, and silicon from fly ash, produce alloy products such as aluminum silicon iron alloy, and achieve the recycling and utilization of metal resources in fly ash.   
Preparation of building materials: High performance building materials such as ceramic particles and microcrystalline glass can be prepared by melting fly ash at high temperatures in a DC electric arc furnace. These materials have advantages such as high strength, good durability, and thermal insulation performance, and can be widely used in the field of construction engineering.   
In other fields, it can also be used to treat fly ash containing harmful substances such as heavy metals. Through high-temperature melting, the solidification and stabilization of harmful substances can be achieved, reducing their harm to the environment. At the same time, valuable metals may be recovered from it. In addition, in some studies and experiments, it can also be used as a high-temperature reaction equipment to explore new utilization pathways and material preparation processes for fly ash.

FAQ
Q1: Are you trading company or manufacturer?
A: We are manufacturer.
Q2: How long is your delivery time?
A: Generally it is 60 days, it is according to quantity requires.
Q3: What is the term of payment?
A: Payment <=1000USD,100%in advance. Payment>=1000USD,30% T/T in advance, balance before shipment.