Cradle to Gate
Identity ID
63617c4f-e216-4a8b-9e02-b080bead6785
Energy
Associated ID
d1d8736a-31e8-462c-846d-9638b9822f81
Included activities starts
Included activities ends
Description
This process refers to the production activity of smelting 1 kg of high-carbon ferromanganese by the submerged arc furnace process. High-carbon ferromanganese is an alloy composed of manganese and iron with a carbon content of 7.0-8.0%. Electric-furnace high-carbon ferromanganese is mainly used in steelmaking as a deoxidizer, desulfurizer, and alloy additive; in addition, with the advancement of the production process for medium- and low-carbon ferromanganese, high-carbon ferromanganese can also be applied to the production of medium- and low-carbon ferromanganese. The dataset includes raw and auxiliary materials such as manganese ore, coke, and electrode paste, and inputs of energy and energy media such as electricity and water; the outputs include the product high-carbon ferromanganese, the by-product gas-fired power generation, the wastes slag and dust-collection ash (which can be recovered to cement plants), as well as emissions to water bodies and the atmosphere. The data inventory is formed by merging data from multiple sources, and the data representativeness is optimized using industry standards such as the Cleaner Production Standard for the Steel Industry (Ferroalloys) and the 3140 Ferroalloy Industry Coefficient Handbook.
Activity Description
The production of high-carbon ferromanganese by the submerged arc furnace method is a method of producing high-carbon ferromanganese in a reduction electric furnace with a short furnace body using electricity as the heat source and coke as the reducing agent. The smelting principle is mainly the process of thermal decomposition of high-valent oxides of manganese and reduction of low-valent oxides by carbon. The raw materials for the production of high carbon ferromanganese consist of manganese ore, electrode paste and coke. After the raw materials pass the inspection, they are stored in the raw material shed. The process flow includes: 1) batching and loading; 2) smelting section; 3) tapping and casting; 4) slag tapping; 5) finishing and packaging.
Process Description
High carbon ferromanganese is an alloy composed of manganese and iron. The high-carbon ferromanganese products in this data set comply with the quality standards for high-carbon ferromanganese in Ferromanganese (GB/T3795-2014), with a carbon content of 7.0%-8.0%. Electric furnace high carbon ferromanganese is mainly used in steelmaking as deoxidizer, desulfurizer and alloy additive. In addition, with the advancement of medium and low carbon ferromanganese production technology, high carbon ferromanganese can also be used to produce medium and low carbon ferromanganese.
Time period
2024
2026
Geography
China
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.