An ore-blending optimization model for the sintering process is an intelligent system that includes iron ore characteristics, expert knowledge and material balance. In the present work, 14 indices are proposed to represent chemical composition, granulating properties and high temperature properties of iron ores. After the relationships between …
In order to improve the green manufacturing of iron ore sintering, a low-carbon and low-cost iron ore blending method is proposed and the corresponding optimization model is established in this paper. The main conclusions can be …
The purpose of this study is to develop a low-cost and low-carbon iron ore sintering technology. Through the use of natural gas and steam coupling injection to strengthen the sintering indexes, so as to reduce fossil fuel …
Sintering process helps utilization of iron ore fines (0-10 mm) generated during iron ore mining operations. Sintering process helps in recycling all the iron, fuel and flux bearing waste materials in the steel plant. …
Optimizing iron ore proportion is significant for improving the performances of sintering process, and the cost of iron ores is important for iron and steel company. Linear programming is an effective optimization method, which can consider both the indices of ore proportion and the cost of iron ores at the same time. Therefore, in the …
In case of chromite, the temperature required for sintering is about 200 0 C more than that required for iron ore sintering. The process conditions for manganese ore sintering are almost similar to that for iron ore. The author has actively contributed to projects for setting up of batch type (capacity 15000 tpa) sinter plants at industry site.
Various innovative initiatives undertaken to intensify the sintering process are narrated in this paper. Intensification of the iron ore sintering process is approached with a four-way framework covering granulation improvement, waste gas recycling, fuel gas injection into the sinter bed, and reduction of stack emissions.
KEY WORDS: comprehensive technologies; ultra-thick bed sintering; air permeability; air leakage; full active quicklime. begins to develop rapidly all over the country and the aver- …
This paper examines near-term options to rapidly reduce greenhouse gas (GHG) emissions in steel production and seeks to identify and explain near-term …
The current issues of sintering technology in the iron and steel making industry are how to increase productivity of sintering process and to maintain proper quality of sintered ore. In the … Expand
News. / Understanding of Iron Ore Sintering Process: From Raw Material to the Final Product. Iron ore is the focal raw material for ferrous metallurgy. Like any …
Along with the rapid development of deep learning technology, process modelling and simulation incorporating sintering theory and large-scale production data information are one of the important tools for future technological innovation in iron ore sintering and the entire iron and steel metallurgical industry, and deep learning …
In order to maintain a stable blast furnace operation, artificial lumping of iron ore is a necessary practice via iron ore sintering technology. It has dramatically reduced production fluctuations, and more importantly has expanded the sources of access to various types of iron ore, permitting low-grade iron ore to be utilized.
This paper explores existing approaches and potential decarbonization paths of the global iron and steel industry: fuel switching to low-C hydrogen, solid biomass, zero-carbon electricity substitution, and retrofit with carbon capture and storage (CCS).
Ore Sintering. The aim of the MEBIOS process is the formation of a ventilation route in the sintering bed by creating a low-density area around the large pellets arising from a kind of wall effect and suppression of sinter bed shrinkage due to support of the load by the dense large pellets in the upper part of the sinter bed.
Moreover, the low-temperature sintering process depresses the iron ore self-densification. Micro pores under 1 μm remain in unmelted ores and improve sinter reducibility.
Optimizing Iron Ore Proportion Aimed for Low Cost by Linear Programming Method YULU ZHOU, XIN JIANG, XIAOAI WANG, LIN WANG, LIANG HE, ... can obviously reduce the cost of iron ores in sintering process with keeping good sintering performances and good quality of sinter. ... Technology Research Institute, Shijiazhuang, Hebei 050023, China. ...
The iron and steel industry has made an important contribution to China's economic development, and sinter accounts for 70–80% of the blast furnace feed charge. However, the average grade of domestic iron ore is low, and imported iron ore is easily affected by transportation and price. The intelligent ore blending model with an …
Optimization of sinter ore allocation is a key step in the steel production process, which has become the most important measure for steel enterprises to effectively reduce cost, improve quality, save energy and reduce emissions. In this paper, the first intelligent recommendation model for the sintering dosing scheme considering cost, …
The main iron ore sintering sub-models include the pressure drop in ... The other motivation for selecting FGR technology in iron ore sintering involves the reuse of the sensible heat of the flue gas and the heat released by CO oxidation in the flue gas. ... Methods for producing pre-granulated and coated fuels at a low cost and in a simple ...
Low-cost natural ores or industrial wastes are the most likely raw materials for large-scale OC preparation. In our previous work, iron ore with sintering resistance and copper ore with high reactivity were combined to solve the problems of poor reaction performance of iron ore and easy sintering of copper ore at high temperatures, …
The objective of iron ore agglomeration is to generate a suitable product of granules in terms of thermal, mechanical, physical, and chemical properties. Sintering and pelletization processes are largely influenced by the source of iron ore and the way in which the beneficiation flowsheet is adopted.
New understanding about the relationship between surface ignition and low-carbon iron ore sintering performance. Author links open overlay panel Xiaohui Fan a ... Gas injection sintering technology has been widely used in industry for more than ten years, but the replacement ratio of solid fuels by hydrogen-rich gas has been stagnated …
In order to improve the green manufacturing of iron ore sintering, a low-carbon and low-cost iron ore blending method is proposed and the corresponding …
Learn about the technology used in sintering, the process that converts fine-sized raw materials, including iron ore, limestone, etc. into product for blast furnace.
The technology for dioxins reduction in co-sintering process of WM-FA was proposed. ... moderate reaction conditions, low cost, high detoxification efficiency, and has a certain fixation effect on heavy metals. ... the utilization of iron and steel furnace to treat MSWI-FA has become a research hotspot. Iron ore sintering is the first high ...
The low-temperature wet oxidation behavior of semi-dry desulfurization ash from iron ore sintering flue gas in ammonium citrate solution was investigated for efficiently utilizing the low-quality desulfurization ash. The effects of the ammonium citrate concentration, oxidation temperature, solid/liquid ratio, and oxidation time on the wet …
The flexibility of the sintering process permits conversion of a variety of materials, including iron ore fines, captured dusts, ore concentrates, and other iron …
Aiming at reduction of carbon and nitrogen oxides emission in Iron ore sintering process and increasing of sintering productivity, a new technology of double-layer pre-sintering has been developed.
In the sintering of iron ores, the partial substitution of anthracite for coke breeze has been considered to be an effective way of reducing pollutant emissions and production cost.