Cradle to Consumer
Identity ID
a4ddd260-dda5-4967-979c-c8c51fe633ff
Materials
Associated ID
d719998a-8ea6-43a0-9352-1db5629eabd2
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 medium- and low-carbon ferromanganese by the rocking furnace - electric furnace process. Medium- and low-carbon ferromanganese is an alloy material composed of manganese and iron, divided by carbon content into low-carbon ferromanganese (<0.7%) and medium-carbon ferromanganese (0.7%-2.0%), mainly used for deoxidation and alloying in steelmaking, and can improve the hardness, ductility and wear resistance of steel. This dataset includes the input of raw and auxiliary materials such as manganese ore, liquid silicomanganese and lime, and energy and energy media such as electricity and water; outputs include the product medium- and low-carbon ferromanganese, waste slag and dust (recoverable to cement plants), and emissions to water and air. The data inventory is formed by merging multi-source data, and the data representativeness is optimized using industry standards such as the 'Cleaner Production Standard - Iron and Steel Industry (Ferroalloy)' and the '3140 Ferroalloy Industry Coefficient Handbook'.
Activity Description
The medium and low carbon ferromanganese is smelted using the production process of shaking ladle electric furnace method. First, mix the liquid medium manganese slag produced by the refining furnace into the shake bag, and then mix the liquid manganese alloy produced by the submerged arc furnace into the shake bag. Shake the shake bag at a speed of 55 to 60 r/min. Under good kinetic conditions, the silicon in the manganese-silicon alloy is used to reduce the MnO in the medium manganese slag. The chemical heat released by the reaction ensures the normal progress of smelting. After the MnO in the slag liquid is depleted to the specified requirements, the furnace is tilted, the waste slag is poured out, and the liquid alloy is mixed into the refining furnace, where it is mixed with manganese ore, lime, etc. until qualified medium-low carbon ferromanganese is produced. The production process includes batching, refining, shaking, tapping, pouring and finishing.
Process Description
Medium and low carbon ferromanganese is an alloy material composed of manganese and iron. According to the carbon content, it is divided into low carbon ferromanganese (<0.7%) and medium carbon ferromanganese (0.7%-2.0%). It is mainly used for deoxidation and alloying in steelmaking, and can improve the hardness, ductility and anti-wear properties of steel. The product complies with the quality standards of medium and low carbon ferromanganese in "Ferromanganese" (GB/T3795-2014).
Time period
2024
2026
Geography
China,Beijing
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The medium and low carbon ferromanganese is smelted using the shaking ladle electric furnace method. First, the liquid medium manganese slag from the refining furnace is charged into the shaking ladle, and then the liquid manganese alloy produced by the submerged arc furnace is also charged into the shaking ladle. The ladle is shaken at a speed of 55 to 60 r/min. Under favorable kinetic conditions, the silicon in the manganese-silicon alloy reduces the MnO in the medium manganese slag, and the chemical heat released by the reaction ensures the normal progress of smelting. After the MnO in the slag is depleted to the specified requirement, the furnace is tilted to pour out the waste slag, and the liquid alloy is charged into the refining furnace, where it is combined with manganese ore, lime, etc., until qualified medium and low carbon ferromanganese is produced.