Preparation of BF Burden from Titanomagnetite Concentrate by Composite Agglomeration Process (CAP)

Jiang, Tao; Yu, Zhibin; Peng, Zhiwei; Rao, Mingjun; Zhang, Yuanbo; Li, Guanghui

doi:10.2355/isijinternational.isijint-2015-094

Cited by 31 publications

(29 citation statements)

References 23 publications

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“…A schematic of the experiment is shown in Fig. 1 6 , 26 , 27 . The raw materials were blended manually according to the proportions presented in Table 1 .…”

Section: Methodsmentioning

confidence: 99%

Partial substitution of anthracite for coke breeze in iron ore sintering

Zhang

Zhong

Liu

et al. 2021

Sci Rep

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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. In this study, the basic characteristics of anthracite and coke breeze were compared and the sintering performance at different substitution ratios of anthracite for coke breeze was investigated. The porosity of anthracite is lower than that of coke breeze, but its density and combustion reactivity are higher. The substitution of anthracite for coke breeze has no influence on the granulation effect of the sintering blend. As the anthracite proportion increased, the sintering speed and productivity increased and the sintering yield and tumbler index decreased. As the substitution ratio increased from 0 to 60%, the melting temperature duration and the melt quantity index decreased from 2.59 to 2.03 min and from 3218.28 to 2405.75 °C·min, respectively, leading to insufficient sintering mineralization and bad sintering indexes. For an anthracite substitution ratio of 40%, the sintering speed, sintering productivity, sintering yield and tumbler index were 22.34 mm min−1, 1.49 t·(m2 h)−1, 71.65% and 63.59%, respectively, which entirely satisfies the production requirements. Furthermore, hematite (Fe2O3), calcium ferrite (CaO–Fe2O3), and compound calcium ferrite (CaO–SiO2–Fe2O3) were the major mineral phases, which were embedded with an interwoven structure.

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“…A schematic of the experiment is shown in Fig. 1 6 , 26 , 27 . The raw materials were blended manually according to the proportions presented in Table 1 .…”

Section: Methodsmentioning

confidence: 99%

Partial substitution of anthracite for coke breeze in iron ore sintering

Zhang

Zhong

Liu

et al. 2021

Sci Rep

Self Cite

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“…Jiang et al [6][7][8] proposed the new agglomeration technology of composite agglomeration process (CAP), where magnetite concentrates is prepared into pellets and sintered together with other raw materials. The pellets play a "skeleton" role in the sintering material layer, which can effectively improve the gas permeability and reduce wind resistance of the material layer.…”

Section: Comprehensive Technologies For Iron Ore Sintering With a Bedmentioning

confidence: 99%

Comprehensive Technologies for Iron Ore Sintering with a Bed Height of 1000 mm to Improve Sinter Quality, Enhance Productivity and Reduce Fuel Consumption

Liu

Niu

Zhang³

et al. 2020

ISIJ Int.

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“…The igniter was moved away after ignition completing, the negative pressure of the draft fan was raised to 14 kPa and the temperature of the flue gas at the bottom of the grate was measured during the sintering and maintained till the end of the sintering process. When the temperature of the flue gas reached its maximum value, PCDD/Fs testing devices were closed and the sintering pot test ended (Jiang et al, 2015;Cheng et al, 2017). Compared with the commercial sintering process, the sintering pot test was a discontinuous process and one sintering time was about 30 min.…”

Section: Sintering Pot Testsmentioning

confidence: 99%

Inhibition Behavior of PCDD/Fs Congeners by Addition of N-containing Compound in the Iron Ore Sintering

Wang

Qian

et al. 2020

Aerosol Air Qual. Res.

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PCDD/Fs are typical toxic persistent aromatic compounds that greatly reduce air quality and harm human health. In this study, urea's suppressive effect on PCDD/Fs and their congener emissions was investigated via sintering pot tests, and the inhibition mechanisms were studied. The results showed that the I-TEQ values for the total PCDD/Fs decreased from 0.50 to 0.20, 0.12 and 0.20 ng I-TEQ Nm-3 after adding solid 0.02, 0.035 and 0.05 wt.% urea particles, respectively, to the iron ore sintering mixture, but these values increased for the low-chlorinated TeCDFs (from 0.003 to 0.009, 0.006 and 0.006 ng I-TEQ Nm-3) and TeCDDs (from 0.014 to 0.020, 0.018 and 0.020 ng I-TEQ Nm-3). Moreover, the average I-TEQ values for the chlorine substituents in the PCDFs and PCDDs decreased, indicating that urea inhibited chlorination or enhanced dechlorination. The potential mechanisms by which urea suppresses the total PCDD/Fs and hydrodechlorinates the highchlorinated PCDD/Fs are discussed.

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Preparation of BF Burden from Titanomagnetite Concentrate by Composite Agglomeration Process (CAP)

Cited by 31 publications

References 23 publications

Partial substitution of anthracite for coke breeze in iron ore sintering

Partial substitution of anthracite for coke breeze in iron ore sintering

Comprehensive Technologies for Iron Ore Sintering with a Bed Height of 1000 mm to Improve Sinter Quality, Enhance Productivity and Reduce Fuel Consumption

Inhibition Behavior of PCDD/Fs Congeners by Addition of N-containing Compound in the Iron Ore Sintering

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