How Sinter Pellet Coke Consumption

Kakogawa Works of Kobe Steel, Ltd. has a set of sinter and pellet plants for the production of blast furnace raw materials. Recently, the use of magnetite fine ore has attracted attention while ...

Enlarging the pellets ratio in BF burdens contributes not only to save energy in furnace burden preparation, but also to reduce emission in iron making by lowering coke consumption. The Fe content of pellet is higher than the average Fe content in sinter products (ca. 50–55%) (Fu et al., 1996). Fe content of blast furnace burden significantly ...

innovative technique help improving 30% microfines utilization in sinter bed, reduce coke breeze/energy consumption, reduce overall basicity of sinter and decrease flux composition. KEY WORDS: microfines; sintering; pelletization; agglomeration; Pellet-Sinter Composite Agglomerate. 1. Introduction Micro-fines are generated in steel plant as ...

The use of agglomerated burden (pellet and sinter) enhances the bed permeability and burden reducibility in BF. The average use of agglomerated burden in BFs is around 90%. …

The starting temperature for reduction of sinter and pellet in the OBF decreased 60 and 150°C compared with that in the TBF and, by the time the temperature reached 1100°C the reduction degree ...

Mini steel mills normally use the EAF to produce steel from scrap and DRI. Since coke making and sintering operations are not required, the EAF process is less energy- and CO 2-intensive, generating considerably less CO 2 for every ton of crude steel produced. Compared with 1.9 ton CO 2 per ton crude steel from the BF–BOF process, the EAF process emits only …

ore nes in terms of sintering performance are studied. The results show that, compared with traditional sintering, the pellet-sintering process can signicantly reduce the coke level while ensuring the quality of sinter. Pellet sintering required 10.54 kgce/t lower solid fuel rate in total and 26.28 kgCO 2 /t lower CO 2

Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. DOI: 10.1002/srin.202000047 Ablast furnace (BF) is the dominantprocess formaking iron in the world. The BF is charged with metallurgical coke and iron burden materials including iron ore pellets, sinter, and ...

BF in North America also predominantly use pellet ore in their burden structure [26]. Chinese steel mills such as Shougang Jing Tang, ... (i.e., CO 2 generated from coal and coke consumption) occurring during sintering, coking, and ironmaking processes. These findings were validated in the study by Lu et al [19]. The characterization result for ...

Iron-making (by BF): melting reduction at high temperature in BF with input of sinter/pellet, coke, limestone, and output of HM, BFG and slag. Artificial lump ore consumption per ton of HM is around 1470 kg/t HM, and the comprehensive coke ratio is 498.58 kg coke/t HM. Energy consumption of iron-making process is 385.05 kgce/t HM, in which ...

Use of pellet gives rise to uniform bed permeability in comparison with iron ore or sinter. This leads to better gas–solid contact resulting in higher productivity at reduced coke and fuel rate.

The pellet-indurating furnace has self-regenerative gas flow, which leads to higher energy efficiency, thus resulting in lower consumption of fossil fuels. The consequence is the reduction in ...

Download scientific diagram | Sinter series coke breeze consumption. from publication: THE EFFECT OF HIGH GRADE PELLET FEED ON SINTERING PERFORMANCE | With the progressive deterioration of sinter ...

Sinter, pellet, and lump ore are typical ferrous raw materials for BFs worldwide. While the burden composition varies significantly from BF to BF, sinter is the predominant ferrous material for BFs particularly in countries in East Asia. ... Table 1 shows the heat of reaction in the sintering process. Coke consumption is considered the primary ...

Blast furnaces, as the world's leading ironmaking units, consume the most energy and produce the most CO 2 in the steel production process [1].The ironmaking process accounts for more than 60% of CO 2 emissions in the iron and steel industry [2], and blast furnace ironmaking is the main contributor.Improving gas utilization is one of the effective ways to …

The main raw material of blast furnace is sinter, even in the Kakogawa Works which has a set of sinter and pellet plants, the blending ratio of sinter in blast furnace raw mate-rials accounts for 40 to 50 mass%. Sinter plant use mainly iron ore with a …

The modified blast furnace charge is also characterized by a decrease in skip sinter and dry skip coke consumption. The results of calculating the options of 10, 20, and 30% partial sinter replacement in the charge are provided. ... (up to 20 kg/ton of sinter and 2 kg/ton of pellets for sintering and pelletizing, respectively).

The current BFs require specific characteristics for charged materials (pellets, sinter, coke) to maintain efficient performance. Hot and cold burden strengths play a significant role in sustaining the permeability of the shaft. Thus, bio-agglomerates (bio-composite, bio-sinter, and bio-coke) must have a minimum strength to maintain the quality ...

Sintering Using Coke Powder in Pellet. ... The developed process for P-SCA increase 30% micro-fines use in sinter bed, consumes less coke breeze and less flux. Acknowledgement. Authors thankfully acknowledge the financial assistance offered by M/s Tata Steel Ltd., Jamshedpur to carry out this investigation and they wish to express their sincere ...

Unlike sinter and pellets, direct contact of iron and carbon oxides is provided in the body of ore-coal bri- ... consumption of 496 kg/t of cast iron and coke consumption equivalent to 336 kg/t of cast iron. As a result, both the blast furnace experiment and simulation tests showed nearly identical characteristics of

Under the respective recommended coke ratio, the total energy consumption of traditional-sintering (5.0%) and pellet-sintering (3.5%) processes is shown in Table 7. The total …

Download scientific diagram | Sinter series coke breeze consumption. from publication: THE EFFECT OF HIGH GRADE PELLET FEED ON SINTERING PERFORMANCE | With the progressive deterioration of...

For example, charging pellets with the grain size of 10 mm and coke of 80 mm might be worse than charging pellets with the grain size of 10 mm and coke of 40 mm despite advantages of large size coke (see Section 13.3.1) because in the first case the grain size ratio d s /d l = 0.125 and in the second case, d s /d l = 0.25.

Compared with iron sintering, pelletizing process is more environmentally friendly with lower energy consumption and less GHG emissions. In addition, the SO 2, NOx and dust …

These results indicate that during blast furnace hot metal production, the use of coke has the most significant impact on CO 2 emissions. Therefore, adopting efficient technologies that …

Keywords Iron ore sintering · Pellet nes · Sinter mix granulation · Productivity · Sinter strength · Sintering time 1 Introduction Sintering is a crucial process in integrated steel plants where a mixture of iron ores, uxes, and coke are fused to produce a sinter. During sintering, various mineral phases crystal-

sintering the pellets, meaning that the process has very low external energy consumption. The off-gas flows are cleaned in the Outotec Cascade Scrubbers. The efficient utilization ... or concentrates, as well as fine anthracite or coke. These feed materials are ground in a ball mill, de-watered in capillary-effect ceramic filters, and then ...

Using double layer mini-pellet improves productivity and reduces coke consumption. 1. Introduction. The main raw material of blast furnace is sinter, even in the Kakogawa Works …

energy-intensive process.2 The sintering process is an alternative to using the fineconcentrate through the hybrid-pellet sintering process to maintain bed permeability by reducing the overall energy consumption of making iron and steel.3 Effectiveutilization of low and lean-grade iron ore fines is a critical issue from both environmental and ...

The S-value for the pellet only, sinter only and the mixed ferrous burden is shown in Figure 10. Clearly, the pellet only bed shows the lowest S-value. Mixing the pellets with sinter has increased the gas permeability of the ferrous bed. The principal reason for such behaviour is discussed in the next section (Quenched ferrous bed).