Supplementary Material for Integrated Report 2018
The デュエルビッツ 評判el Group undertakes environmental management that takes the environment into consideration at every stage of its operations. As part of this approach, the Group continuously strives for greater energy efficiency; effective use of byproduct gases, waste heat, water and other resources; and the recycling of byproducts.
At デュエルビッツ 評判el, 95 percent of the energy used is in the Iron & Steel Business. In fiscal 2017, this business unit used 11.43 million tons of iron ore; 6.08 million tons of coking coal and coke; 10PJ*1 of fuels such as coal, oil and city gas; and 610,000 MWh of purchased power. Nearly all of the byproduct gases—including coke oven gas, blast furnace gas and converter gas—derived from production processes are effectively reused as fuel for reheating steel or for use in in-house power plants. デュエルビッツ 評判el also proactively undertakes power generation that utilizes waste heat. Combined with the power generated from byproduct gases, over 60 percent of the power required by production processes is generated through energy recovery.
In addition, byproducts produced during production processes, such as iron and steel slag*2, dust and sludge, are also turned to effective use as raw materials in applications such as cement and roadbeds. Together with in-company reuse, 97 percent of the byproducts are recycled デュエルビッツ 評判is manner.
In the future, デュエルビッツ 評判el will continue to carry out environmentally friendly manufacturingpractices throughout all aspects of its operations, striving for more efficient use of resources and energy and advancing the development of new technologies to that end.
*1:PJ=1015J
*2:Iron slag and steel slag are byproducts separated and recovered during iron and steel refining. They are also called blast furnace slag and steelmaking slag.
Using metal wire rods, hoops, fluxes, soluble glass and other raw materials, the Welding Business produces welding electrodes and welding wires. In fiscal 2017 the Fujisawa, Ibaraki, Saijo and Fukuchiyama plants used a total of 160,デュエルビッツ 評判ons of raw materials, 62,000 MWh of electricity, and 0.2 PJ of city gas and other fuels to manufacture 160,デュエルビッツ 評判ons of products. This generated 15,デュエルビッツ 評判ons of byproducts, of which 98 percent was successfully recycled.
Input | Output | ||
---|---|---|---|
Raw materials | Products | ||
Wire rods, hoops, fluxes, soluble glass, etc. | 160,デュエルビッツ 評判 | Welding rods, welding wires, etc. | 160,デュエルビッツ 評判 |
Energy | Byproducts | ||
Purchased power | 62,000 MWh | Amount produced | 15,デュエルビッツ 評判 |
City gas, etc. | 0.2 PJ | Recycling ratio* | 98% |
Using ingots and scrap as raw materials, the Aluminum & Copper Business produces a variety of aluminum and copper products. In fiscal 2017 the business unit used 490,デュエルビッツ 評判ons of raw materials, 520,000 MWh of electricity, and 4.2 PJ of city gas and other fuels to create 450,デュエルビッツ 評判ons of products.
During melting and casting, 32,デュエルビッツ 評判ons of byproducts, such as slag, dust and wastewater sludge, were produced. However, 97 percent of these byproducts were successfully recycled.
Input | Output | ||
---|---|---|---|
Raw materials | Products | ||
Aluminum ingots, copper ingots, etc. | 490,デュエルビッツ 評判 | Aluminum and copper products | 450,デュエルビッツ 評判 |
Energy | Byproducts | ||
Purchased power | 520,000 MWh | Amount produced | 32,デュエルビッツ 評判 |
City gas, etc. | 4.2 PJ | Recycling ratio* | 97% |