Optimization of Modeling Parameters for Temperature

2019-9-7  Optimization of Modeling Parameters for Temperature Field of Iron Ore Fines Sintering Based on Sintering Velocity. Abstract: Sintering of iron ore fines in ironmaking production is a complex process involving gas-solid combustion and heat transfer. Modeling the temperature field of sinter bed is the key to optimizing the matching of temperature ...

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Thermodynamic optimization for reduction of iron ore

With the aim of improving the process efficiency of FINEX technology, a thermodynamic optimization was suggested in this paper. By the two-stage fluidized CO reduction experiments of iron ore fines, the relationship between the previous stage and the followed stage were investigated. The results show that the reduction degree of the followed stage firstly increased and then decreased with ...

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Development of alternative options for the optimization

2019-4-20  The reduction of iron ore reserves and the increase in the amount of fines generated by ore beneficiation operations raises the importance of agglomeration processes, which aim to make the ore more suitable for the reduction stages. For this reason, the pelletizing process of iron ore is studied in the literature due to its complexity

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A novel blending principle and optimization model for low ...

2019-10-1  Based on the energy flow analysis of coking, sintering and blast furnace ironmaking process, Lingen Chen et al. [ 12] established an optimization model for iron ore matching, in which energy consumption, CO 2 emission and cost minimizations are taken as optimization objectives.

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Optimization of iron ore sintering process based on ELM ...

2016-1-21  Optimization of iron ore sintering process is to maximize the productivity and the sinter ore quality while minimizing the energy consumption. However, these economic and technical criteria are sometimes contradictory and the improvement of one criterion generally leads to the deterioration of other criteria.

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(PDF) Mathematical Modeling and Optimization of Iron

In the iron ore sintering process, it is desirable to maximize the productivity and quality of sinter while minimizing the fuel consumption for any given raw material (iron ore, flux

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Optimization of Firing Temperature for Hematite Pellets

Optimization of external firing temperature and coke breeze addition in the green pellet mix is necessary to get the desired properties of the pellet for iron making units. Basket trials were carried out at pellet plant induration machine by varying the external firing temperature from 1220 to 1330°C and

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Pelletization of iron ore fines with parameter ...

2019-1-18  The most commonly employed agglomeration technique is pelletizing, wherein a mixture of iron ore, water and binder is rolled in a mechanical disc or drum to produce agglomerates (green balls or wet pellets).7‒9 The green pellet quality significantly affects the fired pellet quality. Bentonite is the most commonly used binder in iron ore Pelletization. It not only controls the moisture in iron concentrate but also remarkably improves physical properties of the pellets. However, there are some major drawbacks with the use of betonies. The most striking is the contamination of the product with gangue (silica). Addition of 1% betonies to an iron ore concentrate results in a lowering of acid pellet iron content by 0.6%. In case of direct reduction pellets, every percent of acid gangue addition is associated with an increased energy consumption of 30 kWh.10 Many researchers attempted to find suitable pellet production systems to achieve production of stronger pellets using either alternate binders or new methods against the conventional ones.11The iron ore

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Optimization of gaseous fuel injection for saving energy ...

2017-12-1  Raw materials, as listed in Table 1, contain iron ore fines, solid fuel, return fine and hydrated lime (95% purity).The basic analysis of the solid fuels for sintering tests is shown in Table 2.The available gaseous fuels in iron and steel production process are usually

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Usage of High-LOI Iron Ore Fines in Pellet Making ...

2019-6-8  From laboratory studies, it has been found that for utilization of e 100% high-LOI iron ore fines (7–9%) in pellet making to achieve desired pellet properties, induration firing cycle should be increased from 54 to 62 min (Drying: 2 min, Preheating: 3 min) and increase in firing temperature by 20 °C results in reduction in pellet production by 14.8% and additional raw material consumption is increased by

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Thermodynamic optimization for reduction of iron ore

With the aim of improving the process efficiency of FINEX technology, a thermodynamic optimization was suggested in this paper. By the two-stage fluidized CO reduction experiments of iron ore fines, the relationship between the previous stage and the followed stage were investigated. The results show that the reduction degree of the followed stage firstly increased and then decreased with ...

Get Price

Optimization of iron ore sintering process based on ELM ...

2016-1-21  Optimization of iron ore sintering process is to maximize the productivity and the sinter ore quality while minimizing the energy consumption. However, these economic and technical criteria are sometimes contradictory and the improvement of one criterion generally leads to the deterioration of other criteria. This paper aims to seek the optimal manipulated parameters from the production data ...

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Development of alternative options for the optimization

2019-4-20  The reduction of iron ore reserves and the increase in the amount of fines generated by ore beneficiation operations raises the importance of agglomeration processes, which aim to make the ore more suitable for the reduction stages. For this reason, the pelletizing process of iron ore is studied in the literature due to its complexity

Get Price

Optimization of Modeling Parameters for Temperature

Optimization of Modeling Parameters for Temperature Field of Iron Ore Fines Sintering Based on Sintering Velocity September 2019 DOI: 10.23919/IConAC.2019.8895171

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(PDF) Mathematical Modeling and Optimization of Iron

In the iron ore sintering process, it is desirable to maximize the productivity and quality of sinter while minimizing the fuel consumption for any given raw material (iron ore, flux and solid ...

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A novel blending principle and optimization model for low ...

2019-10-1  It leads to deviation and lag in optimization process of ore blending. Sintering is a typical high-temperature reaction process. The physical and chemical properties of iron ore fines under high temperature directly affect its sintering performance.

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Cold briquetting of iron ore fines for DRI production ...

The iron ore fines cannot be ... and introduces the production process and application of iron coke and then focuses on the production process of carbon composite iron hot briquette, its cold ...

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Multi-objective optimization of iron ore induration ...

2021-8-4  Thus, optimization of induration process is necessary for conservation of a significant amount of energy in steelmaking industries. To realize this, a highly non-linear, industrially validated, 22 dimensional first principles based model for induration is created and a multi-objective optimization problem is designed.

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Usage of High-LOI Iron Ore Fines in Pellet Making ...

2019-6-8  Loss on ignition (LOI) in the mineral represents the chemically bonded water which can be removed at high temperatures only. High LOI in iron ore fines has an adverse affect during pellet induration process. High-LOI iron ore fines are required for detailed laboratory pelletization studies and are used in pellet making. The received iron ore is martite–goethitic and hematite–goethitic form ...

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Model-Based Optimization of Industrial Gas-Solid Reactors

2015-1-9  mentioned above. Case studies from the iron and steel industry on model-based optimization of production of direct reduced iron in a rotary kiln and induration of wet iron ore pellets on a moving packed bed reactor are discussed here. Keywords: multiphase reactors, modeling, optimization, soft-sensors, iron and steel, pelletization 1. Introduction

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Development of alternative options for the optimization

2019-4-20  The reduction of iron ore reserves and the increase in the amount of fines generated by ore beneficiation operations raises the importance of agglomeration processes, which aim to make the ore more suitable for the reduction stages. For this reason, the pelletizing process of iron ore is studied in the literature due to its complexity

Get Price

A novel blending principle and optimization model for low ...

2019-10-1  It leads to deviation and lag in optimization process of ore blending. Sintering is a typical high-temperature reaction process. The physical and chemical properties of iron ore fines under high temperature directly affect its sintering performance.

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Production Process Optimization of Mongolian Iron Ore ...

Baogang Group imported large quantities of Mongolian iron ore to solve the shortage of ironmaking raw materials. But the basic parameters of Mongolian iron ore in pellets production are deficient. In this paper, orthogonal experimental method was used in the optimization of roasting production process of Mongolian iron ore pellets. The results show that when the content of Mongolian iron ore ...

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Optimization of Firing Temperature for Hematite Pellets

The production of iron ore pellets at JSW Steel Limited involves the drying of iron ore fines to get the moisture less than 1% and grinding the dried material to get the required fineness –45 μm size ≥62.0%.Prior to the formation of green pellets, the ground ore is mixed with small amounts of binding agents such as bentonite (0.7 to 0.9%), fluxes such as limestone to get the pellet ...

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Optimization of the Iron Ore Direct Reduction Process ...

Iron ore direct reduction is an attractive alternative steelmaking process in the context of greenhouse gas mitigation. To simulate the process and explore possible optimization, we developed a systemic, multiscale process model. The reduction of the iron ore pellets is described using a specific grain model, reflecting the transformations from hematite to iron.

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Model-Based Optimization of Industrial Gas-Solid Reactors

2015-1-9  mentioned above. Case studies from the iron and steel industry on model-based optimization of production of direct reduced iron in a rotary kiln and induration of wet iron ore pellets on a moving packed bed reactor are discussed here. Keywords: multiphase reactors, modeling, optimization, soft-sensors, iron and steel, pelletization 1. Introduction

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Multi-objective optimization of iron ore induration ...

2021-8-4  Thus, optimization of induration process is necessary for conservation of a significant amount of energy in steelmaking industries. To realize this, a highly non-linear, industrially validated, 22 dimensional first principles based model for induration is created and a multi-objective optimization problem is designed.

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System Integration of Automated Mine Optimization

2017-2-4  Ore type soft senor (ore tracking system) 4.1 Mine Production Optimizer The mine production optimizer is developed using the principle of constraint based global optimization [2]. The production optimizer includes the following basic components: Objective function System transfer function System identification Optimal search engine Fig. 7.

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Process optimization of a chrome ore gravity

2020-5-19  Process optimization of a chrome ore gravity concentration plant for sustainable development Y. Rama Murthy1 and S.K. Tripathy1,2 Synopsis India has limited resources of chromite. To optimally exploit this valuable and strategic raw material, numerous chrome ore beneficiation plants have been established. Most of these plants suffer chromite

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