Efficient Management of the Charging of Blast Furnaces and the Application of Contemporary Means of Control Over the Variable Technological Conditions

Semenov, Yu. S.; Shumel’chik, E. I.; Gorupakha, V. V.

doi:10.1007/s11015-018-0591-4

Cited by 18 publications

(6 citation statements)

References 2 publications

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“…The third DSS (name adopted at PrJSC "Kamet-steel": "Expert Module"), implemented in 2021-2022 in the automatic control system of the BF shop in combination with the installation of means for measuring the temperatures of the gas flow above the surface of the charge materials (thermoprobes), will make it possible to reasonably and in a timely manner correct the parameters of the charging mode [2,11,12,[14][15][16]53].…”

Section: Resultsmentioning

confidence: 99%

“…In recent years, to assess the distribution of the intensity of the gas flow, thermal probes are increasingly used, which are installed above the surface of the charge in the BF (Figure 4). An important advantage of thermal probes is continuous measurement of the temperature distribution of gases, where the information obtained helps with evaluating and correcting the BF charging mode [2,14,15], operational reliability, durability, and low cost of construction. The disadvantages of thermal probes include the change in readings when adjusting the level of filling of materials in the BF due to mixing and deflection of the gas flow, underestimation of temperatures under the influence of the refrigerant, and the formation of charge depressions under the thermal probes.…”

Section: Resultsmentioning

confidence: 99%

“…In addition to preliminary studies, it is necessary to equip BFs with additional means (systems) for monitoring process parameters. Such important and promising means of control for Ukraine include the following: means of temperature control of the gas flow over the burden surface [14][15][16], radar means for monitoring the configuration of the burden surface [17][18][19], means for controlling the distribution of the chemical composition of gases along the radius of the BF above the burden surface and (or) in the upper zone of the BF [20], control of blast distribution for each air tuyere, and multi-point control of static pressure along the height of the BF shaft [21].…”

Section: Introductionmentioning

confidence: 99%

“…To implement the third DSS for adjusting the parameters of the charging mode, it is proposed to use information on the dynamics of changes in the temperatures of the gas flow above the charge surface. This is due to the use of stationary thermal probes in Ukrainian BFs and a series of long-term studies of the influence of BF charging parameters on the gas flow distribution along the BF radius [2,12,[14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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Development and Implementation of Decision Support Systems for Blast Smelting Control in the Conditions of PrJSC “Kamet-Steel”

Semenov

Shumelchyk

Horupakha

et al. 2022

Metals

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This article presents a description of three decision support systems (DSS) in the mode of an adviser to the technological personnel of blast furnaces (BF), which were implemented by the Iron and Steel Institute of Z.I. Nekrasov (Dnipro, Ukraine) or underwent pilot testing as part of the automated control system of the BF shop of PrJSC “Kamet-steel” (Kamianske, Ukraine). The first DSS for managing the thermal state was implemented in 2021; it includes the entire list of information necessary for personnel in a convenient and compact form, generates recommendations in case of technology deviations, and, in the case of incorrect actions by the personnel, signals the need for correct actions. The main recommendations from the DSS are to correct the raceway adiabatic flame temperature, coke consumption when its characteristics are specified in (indicators of strength and abrasion, fractional composition, humidity, ash and sulfur), and ore load change. Using the system allows both reducing the specific coke consumption and preventing unplanned downtime. The second DSS for controlling the distribution of fuel additives over air tuyeres is based on information on thermal loads determined on water-cooled elements of tuyere tools. The main recommendations from the DSS are to adjust the amount of injected pulverized coal fuel on individual tuyeres in order to ensure a uniform distribution of the raceway adiabatic flame temperature around the circumference of the BF and, as a result, the energy efficiency of BF smelting. The third DSS for adjusting the parameters of the charging mode is based on information from the means of controlling the temperatures of the gas flow above the surface of the charge in the BF. The functioning of this DSS is based on determining the reference curves for the distribution of the gas flow along the BF radii, corresponding to the minimum consumption of coke and maximum productivity, and on the search for solutions by direct and iterative optimization methods, which allow one, by adjusting the charging parameters, to ensure a rational distribution of charge materials and gas flow in the BF.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Development and Implementation of Decision Support Systems for Blast Smelting Control in the Conditions of PrJSC “Kamet-Steel”

Semenov

Shumelchyk

Horupakha

et al. 2022

Metals

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“…Maintaining the reliable and efficient functioning of mining, metallurgical and chemical enterprises is one of the important challenges in the modern economy [23,3,30,31]. Roller presses with profiled rollers are widely used in the briquetting processes of fine-grained raw materials in various industries [4,9,35,7,8].…”

Section: Introductionmentioning

confidence: 99%

A Novel Approach to the Screw Feeder Design to Improve the Reliability of Briquetting Process in the Roller Press

Baiul¹,

Ващенко²,

Khudyakov³

et al. 2023

Eksploatacja i Niezawodność – Maintenance and Reliability

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The screw feeder design for the pre-compaction of bulk materials to be briquetted in a roll press is considered to increase the overall reliability. The relationship between the parameters of the screw feeder and its technological characteristics is investigated by the example of two fine-grained materials. A new mathematical model and design algorithm have been developed, which takes into account the properties of materials, the roller press parameters, the shape of the briquettes, and their deformation after compaction. The relationship between the pre-compaction pressure and the material stack height at the inlet is determined. The relations between the torque, the screw pitch, and the material stack height above the inlet, as well as the drive power and the screw pitch on productivity, are investigated. In experiments, using the proposed design, the compaction ratio of the peat increases by 22-27%, and hydrolyzed lignin – by 14-17%. The proposed approach allows for preventing drive overloading and ensures the reliable operation of pre-compaction devices for the roller presses.

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Model-Based Decision Support System for the Blast Furnace Charge of Burden Materials

Shumelchyk

Semenov

Horupakha

et al. 2021

Applied Condition Monitoring

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Efficient Management of the Charging of Blast Furnaces and the Application of Contemporary Means of Control Over the Variable Technological Conditions

Cited by 18 publications

References 2 publications

Development and Implementation of Decision Support Systems for Blast Smelting Control in the Conditions of PrJSC “Kamet-Steel”

Development and Implementation of Decision Support Systems for Blast Smelting Control in the Conditions of PrJSC “Kamet-Steel”

A Novel Approach to the Screw Feeder Design to Improve the Reliability of Briquetting Process in the Roller Press

Model-Based Decision Support System for the Blast Furnace Charge of Burden Materials

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