Improved (Segregated) Charging of Materials

In order to overcome the productivity problems caused by coarse limonate particles an improved charging method was developed in Japan. Using a drum chute Segregation Slit Wire (SSW), this system maintains a constant particle size, thereby increasing the sinter permeability and sintering efficiency.  By also reducing the material return rate due to poor sintering this method improves productivity, product quality and energy efficiency. 

Development Status Products
Commercial

Improved (Segregated) Charging of MaterialsCosts & Benefits

Parent Process: Sinter Plant
Energy Savings Potential

Energy consumption is reduced by around 79 MJ/t-sinter due to reduced coke consumption. Productivity increases by around 5% (NEDO, 2008. p. 63). 
CO2 Emission Reduction Potential
Costs

In a Japanese sinter plant with 1 million t/y capacity, installation of this system costed ¥80 million for equipment and ¥30 million for construction.  With a coke price of ¥16/kg-coke, equipment cost was recovered in 1.8 years, and total costs were recovered in 2.4 years (NEDO, 2008. p. 63). 

Improved (Segregated) Charging of MaterialsSchematic

Improved (Segregated) Charging of Materials Publications

Global Warming Countermeasures: Japanese Technologies for Energy Savings / GHG Emissions Reduction

Date: 

2008

Source: 

New Energy and Industrial Technology Development Organization

Format: 

PDF

Type: 

Publications

This revised 2008 version of the publication from New Energy and Industrial Technology Development of Japan includes information on innovative Japanese technologies for energy efficiency and for the reduction of CO2 emissions.  

http://www.iipinetwork.org/wp-content/Ietd/sites/ietp/files/Japanese%20Technologies%20for%20Ener...

Page Number: 

62

Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry

Date: 

Oct
2010

Source: 

United States Environmental Protection Agency

Format: 

PDF

Type: 

Publications

The U.S. Environmental Protection Agency’s (EPA) energy guide, Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry, discusses energy efficiency practices and technologies that can be implemented in iron and steel manufacturing plants. This guide provides current real world examples of iron and steel plants saving energy and reducing cost and carbon dioxide emissions.

http://www.energystar.gov/ia/business/industry/Iron_Steel_Guide.pdf?25eb-abc5

Page Number: 

77