Impacts of energy-saving and emission-reduction on …
Performance of cement production has been explored using different methods. Liu et al. [13] applied life cycle assessment to environment impact comparison of cement, sintered bricks and non-sintered bricks manufacturing using water-based drilling cuttings from shale gas production in the Sichuan Basin, China.The results showed …
Design and Development of SPC90 Slag Pot Carrier of Large Steel Slag …
In order to ease the contradiction between steel slag transportation and the development of steel mills equipment technology of domestic, the SPC90 slag pot carrier has been designed and developed. The maximum rated load of SPC90 Slag pot Carrier is 90 ton, which can cooperate with many kinds of bridge machine for the railway …
Energy-saving and environmentally friendly MBS rod mill for …
The energy-saving steel slag rod mill has changed from traditional surface contact to line contact, with a wide coverage of steel slag grinding materials and a …
A review of energy use and energy-efficient
31.15 million/ slag powder production line: 3.4 [79] 61: ... Utilization of secondary energy is an important part of the energy saving of iron and steel enterprises. ... Hot air and steam recovery by wind quenching method: 49: 8.0: H2, CO recovery and power generation by chemical method: 88:
[PDF] Three-Stage Method Energy–Mass Coupling High …
High-temperature molten steel slag is a large amount of industrial solid waste containing available heat energy and resources. This paper introduces an efficient and comprehensive utilization process of high-temperature molten steel slag. The waste heat energy in the high-temperature molten steel slag can be fully recovered through …
Life cycle assessment of melting reduction treatment for iron and steel
1. Introduction. China has the largest output of steel and iron in the world (Zhang et al., 2022).In 2021, China's average annual pig iron output arrived at about 869 million ton (Stewart et al., 2021) and crude steel arrived at about 1.03 billion tons (Zhao et al., 2022).Meanwhile, the output of steel solid waste keeps at a high level and generally …
Research progress of hydrogen production and CO2 fixation …
According to the hydrogen price of 2480 $/t, the investment payback period of SE-CLR method based on steel slag is 4.02 years. Under the background of energy saving and emission reduction, the increase of carbon price and hydrogen demand makes the SE-CLR method of hydrogen production based on steel slag more competitive.
Steel Industry: Making Significant Energy Savings
According to a study by the International Energy Agency (IEA), the steel industry alone accounted for 7% of global energy consumption in 2019. Steel production is also responsible for 2.6 gigatons of CO2 emissions, or about 7% of man-made greenhouse gas emissions.
Energy Efficiency and Sustainability in Steel Production
2 from steel production. The first key factor is improved energy efficiency. A comprehensive study by IEA/OECD analyzed steel industries in different countries and published improvement potential for each country, respectively [10]. The study was based on data of 2006, and showed the worldwide average of 4.1 GJ/t steel corresponding to …
Cost of energy saving and CO2 emissions reduction in …
This paper estimated the cost curve of energy saving and CO 2 emissions reduction in China's iron and steel sector. Forty-one energy saving technologies which are widely used or popularized are selected, their investments, operation costs, energy savings and CO 2 abatement are collected and the data in 2010 are taken as a …
The steel production transformation process in Europe: New slag …
The main challenge of the steel industry for the next decade is the steel production transformation process, starting in Europe. The CO 2 intensive blast furnace/basic oxygen furnace (BOF) route will be substituted by a combination of Direct Reduced Iron (DRI), based on natural gas, later on "green" hydrogen, with an Electric Arc Furnace (EAF) or a …
Recycling of iron and steel slag for carbon reduction and low
1 INTRODUCTION. Blast furnace slag (BFS) and steel slag (SS), as industrial solid wastes produced in the process of steel-making, account for 80%–90% …
Waste heat recovery from hot steel slag on the production line
Finally, heat recovery was carried out under the Nontype flow field in an industrial test. The heat recovery efficiency increased from ∼76% and ∼78% to ∼81% when the steel slag thickness decreased from 400 and 300 to 200 mm, corresponding to reductions in the steel slag mass from 3.96 and 2.97 to 1.98 t with a blower air volume …
Comprehensive utilization of steel slag: A review
1. Introduction. Steel slag is the main solid waste generated in the steel-making process, accounting for 15 to 20% of crude steel output [1].China's crude steel output in 2021 was 1.035 billion tons [2], more than half of the global crude steel output (1.9505 billion tons) [3], and the steel slag output exceeded 120 million tons.In contrast, …
Energy recovery from high temperature slags
1. Introducition. Metal manufacturing industry has achieved tremendous improvements in its energy efficiency in the past several decades. The specific energy consumption of steel in the U.S., for example, has decreased from 48 to 20 GJ/ton in the period 1960–2000 [1].This accomplishment has been realized by implementing …
Recycling of Steel Slag for Energy Saving and its
The effectiveness of steel slag powder on suppressing alkali aggregate reaction (AAR) expansion was assessed using the method of ASTM C441 and accelerated test method. Experimental results show ...
Review Occurrence of steel converter slag and its high value …
Reusing converter slag for sintering has been practiced by Chinese iron and steel companies such as "Bao Steel" and "Lianyuan Steel" since 1996, and "Bao Steel" …
CN217127455U
The utility model provides a hot sediment energy-conserving processing apparatus of steel smelting relates to smelting hot sediment and handles technical field, including energy-conserving processing box, the top fixed mounting of energy-conserving processing box has the mounting panel, the top of mounting panel runs through there are a plurality of …
Recent progress in sustainable and energy-efficient technologies …
Iron ore sinter plants are energy-intensive components of integrated iron and steel production (see Table 1), where the iron ore fines (<5 mm) are converted into larger (>5 mm) lump sinter cakes with greater gas permeability, which are the most important burden materials for iron making in blast furnaces (BFs) [7].The main process is shown …
Three-Stage Method Energy–Mass Coupling High-Efficiency …
When the waste heat is recovered through cogeneration, the results of mass balance and energy balance are shown in Figures 12 and 13. The high-temperature water vapor …
Benefits of using steel slag in cement clinker production for
The substitution of iron ore with steel slag in clinker production provides an environmentally friendly modification to the manufacturing process. During production, using steel slag as the raw material can reduce CO 2 emissions, fossil fuel combustion, and power consumption. In experimental studies, increasing the substitution amount of …
Research progress of hydrogen production and CO2 fixation …
According to the hydrogen price of 2480 $/t, the investment payback period of SE-CLR method based on steel slag is 4.02 years. Under the background of energy …
Control of slag formation in the electric furnace smelting of
This work verifies the feasibility of decreasing the smelting temperature by controlling the slag formation for an energy-saving production. The slag regulation method was upgraded through the coordination of the quaternary basicity [ = R 4 = m(CaO + MgO)/m(SiO 2 +Al 2 O 3)] and FeO content. The melting temperature was decreased, …
Comprehensive utilization of steel slag: A review
1. Introduction. Steel slag is the main solid waste generated in the steel-making process, accounting for 15 to 20% of crude steel output [1].China's crude steel …
Waste heat recovery from hot steel slag on the production …
Finally, heat recovery was carried out under the Nontype flow field in an industrial test. The heat recovery efficiency increased from ∼76% and ∼78% to ∼81% …
Recycling of steel slag and glass cullet from energy saving lamps …
The paper reports on some experimental results obtained from the production of ceramics containing steel slag and glass cullet from exhaust energy saving lamps mixed in different proportions.
Basic Oxygen Steelmaking Slag: Formation, …
1 Introduction. The basic oxygen steelmaking (BOS) process produced over 70% of the global crude steel in 2018, [] generating 100 to 150 kg of slag ("BOS slag") for every tonne of crude steel produced. BOS slag, a …
Review Occurrence of steel converter slag and its high value …
That is, under the condition of ensuring the efficiency and quality of steel production, a more suitable and cost-effective steel slag treatment process selected to separate the steel slag from the steel production line and to ensure that the steel slag has sufficient activity and stability to realize the secondary use and even to promote the ...
Three-Stage Method Energy–Mass Coupling High-Efficiency …
Steel slag volume expansion has been recorded to be as much as 10 pct. Therefore, before steel slag is prepared for building materials, measures need to be taken to remove f-CaO.[30,31] In recent years, China's research on the utilization of steel slag has mainly focused on the treatment of steel slag by the thermal braising …
Recycling of steel slag and glass cullet from energy saving …
DOI: 10.1016/j.wasman.2010.03.030 Corpus ID: 29517814; Recycling of steel slag and glass cullet from energy saving lamps by fast firing production of ceramics. @article{Furlani2010RecyclingOS, title={Recycling of steel slag and glass cullet from energy saving lamps by fast firing production of ceramics.}, author={Erika Furlani …