Cradle to Consumer
Identity ID
ed9b6129-5e8a-4d4c-ae65-ae6d84f9fa55
Materials
Associated ID
d9884495-2c2d-4712-9e7e-421698a8e27c
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-barium alloy by the submerged arc furnace process. Silicon-barium alloy is a ferroalloy composed of silicon and barium, mainly used for deoxidation and desulfurization in the steelmaking process, and can also serve as an inoculant for cast iron. This dataset includes the input of raw and auxiliary materials such as barite, silica, steel scrap and coke, and energy and energy media such as electricity and water; the output includes the product silicon-barium alloy, the waste dedusting ash and smelting slag (which can be recycled for comprehensive utilization), as well as 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
Silicon-barium alloy is mainly produced by the submerged arc furnace method. This method uses barite, silica, coke and steel scraps as the main raw and auxiliary materials. In the submerged arc furnace, the reduction of silicon is mainly carried out according to the reaction mechanism of smelting 75% ferrosilicon, that is, after the SiO2 in the silica is reduced to SiC and SiO, the two intermediate products react with each other or react with SiO2 and C in the charge ingredients to generate silicon, and then the silicon dissolves into iron to form ferrosilicon. The reaction process of barium in the submerged arc furnace is relatively complicated. Since the properties of BaO are similar to CaO, it can be considered that the smelting process of silicon-barium alloy is similar to that of calcium-silicon alloy. The smelting process is continuously carried out in a closed or semi-closed submerged arc furnace. The high temperature in the furnace is maintained through electrode arc heat and resistance heat to achieve efficient reduction and alloying. After the reaction is completed, the silicon-barium alloy melt is separated from the slag, and after being discharged, cast, cooled, crushed and finished, the finished silicon-barium alloy is obtained. The main process flows include: (1) raw material pretreatment and batching; (2) submerged arc furnace charging and smelting; (3) tapping and casting; (4) alloy cooling and crushing; (5) product finishing and packaging.
Process Description
Silicon-barium alloy is an iron alloy composed of silicon and barium. It is usually made by mixing silicon- and barium-containing raw materials in a certain proportion and then smelting them at high temperature. It is an important raw material in the steel smelting industry and is mainly used for deoxidation and desulfurization in the steelmaking process. It can also be used as an inoculant for cast iron.
Time period
2008
2026
Geography
China,Shanxi
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Submerged arc furnaces use carbon as a reducing agent to reduce oxides in ores to produce ferroalloys. The mixed charge is added into the furnace, and the electrodes are buried in the charge. Heating is achieved by arc heat and resistance heat generated by the electric current passing through the charge. The molten metal and slag collect at the bottom of the furnace, and iron and slag are regularly tapped through the taphole. The production process is continuous.