Cradle to Consumer
Identity ID
decfe104-b43b-406e-b033-fa386a0e3b4f
Materials
Associated ID
014eceec-83db-41d0-84ee-6195272701b2
Included activities starts
Included activities ends
Description
This dataset is a market dataset representing the consumption market of the region. The dataset includes the transport of the product from the gate to the consumption end, and the transport service is calculated based on the transport situation of the product in the region. This process refers to the production activity of producing 1 kg of silicon-aluminium-iron alloy by the medium frequency furnace process. Silicon-aluminium-iron alloy is a composite strong deoxidizer that is relatively widely used in the steelmaking process. This dataset includes the input of raw and auxiliary materials such as ferrosilicon, aluminium and scrap steel, and energy such as electricity; outputs include the product silicon-aluminium-iron alloy, waste dust and smelting slag (recoverable for comprehensive utilization), and emissions to air and water. The data inventory is formed by merging multi-source data, and the data representativeness is optimized using industry standards such as the '3140 Ferroalloy Industry Coefficient Handbook'.
Activity Description
This production activity uses ferrosilicon, aluminum ingots, scrap aluminum, and scrap steel as raw materials. The raw materials are added to a medium frequency induction furnace in a specified ratio for melting. After melting is complete, the molten material enters the mold of the casting machine for cooling, resulting in the finished silicon-aluminum-iron alloy, which is then packaged for sale. The process steps included in this production activity are: (1) batching; (2) smelting; (3) casting; (4) product packaging.
Process Description
Silicon-aluminum ferroalloy is a composite strong deoxidizer widely used in the steelmaking process. Silicon-aluminum ferroalloy has high density and low burning loss. The product formed by deoxidizing with silicon-aluminum ferroalloy has a low melting point and easily floats to the surface of molten steel to reduce inclusions in the steel, purify the molten steel, and improve the quality of steelmaking. In the steelmaking process, the use of silicon-aluminum ferroalloy is significantly better than pure aluminum deoxidizer in deoxidizing, desulfurizing, and changing the morphology of inclusions in molten steel. Meanwhile, silicon-aluminum ferroalloy can also be used to produce silicon-aluminum series alloys and reducing agents for metallothermic reduction.
Time period
2021
2026
Geography
China,Sichuan
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The production of silicon-aluminum-iron alloys includes batching, smelting, casting, and finished product packaging processes. In the core smelting process, heat the cold furnace to about 600°C and start feeding. First, add aluminum ingots to the bottom of the furnace, melt them for about 8 minutes, then add ferrosilicon, and finally add scrap steel. When the raw materials in the furnace are free of granular materials, start stirring. The melting time of each furnace is controlled at about 35 minutes, and the melting temperature is 1000~1400°C.