scholarly journals Digital transformation of pyrometallurgical technologies: State, scientifc problems and prospects of development

2021 ◽  
Vol 64 (8) ◽  
pp. 588-598
Author(s):  
N. A. Spirin ◽  
V. V. Lavrov ◽  
V. Yu. Rybolovlev ◽  
D. A. Shnaider ◽  
A. V. Krasnobaev ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Digital Transformation ◽  
Automated System ◽  
Production Cycle ◽  
Blast Furnace Smelting ◽  
Digital Twins ◽  
Technical Vision ◽  
Software Modules ◽  
Promising Area ◽  
Blast Parameters

The article considers an overview and critical analysis of the digitalization of the leading Russian ferrous metallurgy enterprises in accordance with the Industry 4.0 development concept. It provides for the creation of digital twins of pyrometallurgical technologies, the widespread use of machine vision and artifcial intelligence. The examples of domestic industrial systems using the technologies of machine (technical) vision in production cycle, digital assistants (twins) of metallurgical units and their sets are presented. With regard to blast­furnace production, technical vision systems used to control processes in the upper and lower zones of blast furnace are considered. A promising area is the integration of technical vision and decision support systems, including algorithms and software modules for implementation of deterministic mathematical models of individual phenomena of blast furnace smelting. They are based on fundamental physical concepts of blast­furnace smelting processes. One of the main directions of digital transformation of pyrometallurgical technologies is creation of intelligent control systems for technological process in metallurgy in real time. When formulating and solving problems, it is required not only to study the characteristics describing the effect of change in melting conditions on technical and economic indicators of the operation of individual furnaces, but also a detailed analysis for mathematical description of external and internal constraints. The authors present the examples of subsystems for control of heat losses in a blast furnace, predicting the parameters of tuyere hearths and controlling distribution of blast parameters around the perimeter of a blast furnace, an automated system for analyzing and predicting production situations in a blast furnace. Creation of such systems was carried out on the basis of modern principles and technologies for the development of appropriate mathematical, algorithmic and software support.

Automated System for Monitoring and Controlling the Slag Regime in Blast-Furnace Smelting

Metallurgist ◽  
2004 ◽  
Vol 48 (3/4) ◽  
pp. 147-152
Author(s):  
D. N. Togobitskaya ◽  
P. I. Otorvin ◽  
A. I. Bel'kova ◽  
A. Yu. Grin'ko
Keyword(s):  
Blast Furnace ◽  
Automated System ◽  
Blast Furnace Smelting ◽  
Slag Regime ◽  
Furnace Smelting

Blast Furnace Smelting by Water Gas

1900 ◽  
Vol 50 (1296supp) ◽  
pp. 20771-20772
Author(s):  
C. C. Longridge
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Smelting ◽  
Water Gas ◽  
Furnace Smelting

scholarly journals A Novel Automated System for the Handling of Car Seat Wires on Plastic Over-Injection Molding Machines

Machines ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 141
Author(s):  
F. J. G. Silva ◽  
M. R. Soares ◽  
L. P. Ferreira ◽  
A. C. Alves ◽  
M. Brito ◽  
...  
Keyword(s):  
Cycle Time ◽  
Added Value ◽  
Automated System ◽  
Production Cycle ◽  
Labor Costs ◽  
Molding Process ◽  
Car Seats ◽  
Car Seat ◽  
Productivity And Competitiveness ◽  
Plastic Injection

The structure of car seats is becoming increasingly complex, with mixing of wire conformation and plastic injection. The plastic over-molding process implies some labor, which can be reduced if novel solutions are applied in this manufacturing area. The handling of the wires used in car seats is the main problem identified in the process, wasting time both in the feeding and in the extraction of the molds used in the wire over-molding process. However, these machines are usually extremely compact and the free space around them is too short. In classic molding injection machines, there are just two half-molds, the female, and the male. In the over-molding process of wires used in car seats, three half-molds are used in order to increase the cycle time. Thus, to solve this problem, the classic robotic solutions are not appliable due to lack of space and elevated cost. This work describes the development of an automated solution able to handle the wires in both the feeding and the extracting phases of the production cycle, avoiding the traditional labor costs associated with this type of machine. Departing from an industrial need, the developed novel solution is described in detail and can be successfully adapted to other situations of low added-value products where it is needed to increase the productivity and competitiveness of the product. The system developed uses mechanical and pneumatic solutions which, combined, can be used to solve the identified problem, occupying a restricted space and requiring a small budget. This solution can be translated into guidelines that will allow the analysis of situations where the same system can be applied.

Recycling metallurgical waste in blast-furnace smelting

2007 ◽  
Vol 37 (10) ◽  
pp. 898-899 ◽  
Author(s):  
L. D. Nikitin ◽  
V. A. Dolinskii ◽  
S. A. Kudashkina ◽  
L. V. Portnov ◽  
S. F. Bugaev
Keyword(s):  
Blast Furnace ◽  
Metallurgical Waste ◽  
Blast Furnace Smelting ◽  
Furnace Smelting

Influence of the consumption of pellets with different basicity on indicators of blast-furnace smelting

2021 ◽  
pp. 4-10
Author(s):  
R. R. Dema ◽  
◽  
A. N. Shapovalov ◽  
S. N. Baskov ◽  
◽  
...  
Keyword(s):  
Blast Furnace ◽  
High Temperature ◽  
Pressure Drop ◽  
Optimal Level ◽  
Coke Rate ◽  
Specific Pressure ◽  
Blast Furnace Smelting ◽  
Gas Dynamic ◽  
Fluxed Pellets ◽  
Furnace Smelting

The results of the analysis of production data on the operation of blast furnace No. 1 (useful volume 1007 m3) of Ural Steel JSC for the period from 2013 to 2018 are presented. During this period, pellets from the Mikhailovsky GOK were used with varying degrees of fluxing: pellets of natural basicity in the ratio of CaO/SiO2 equal to 0.08 ± 0.02 units. (2013-2015) and partially fluxed pellets with a basicity of 0.52 ± 0.05 units. (from 2016 to the present). It has been established that the effectiveness of the use of pellets of various basicities is determined by their behavior in the blast furnace and depends on the proportion of pellets in the iron ore part of the charge. The gas-dynamic conditions of the smelting worsen with an increase in the proportion of pellets in the charge, which is accompanied by an increase in the specific pressure drop and forces the flow rate to be adjusted. There is an optimal level of specific pressure drop (53–55 Pa per 1 m3 of blast per minute) for the operating conditions of blast furnace No. 1 of Ural Steel, which ensures the optimum combination of the melting characteristics. Deviation from the optimal level of pressure drop leads to an increase in coke rate and a decrease in the degree of CO use, which is associated with gas distribution disturbance. Due to the increase in high-temperature properties, the replacement of non-fluxed pellets with off-fluxed pellets improves the gas-dynamic conditions in the lower part of the mine (in the cohesive zone). This leads to a decrease in the total pressure drop and specific pressure drop at a constant flow rate of the blast, and is a reserve for melting intensification. To minimize coke rate and maintain the high-performance operation of blast furnaces of Ural Steel JSC, it is necessary to work on 40–45 % of fluxed or 20–25 % acid pellets in a charge. An increase in pellet consumption while maintaining the efficiency of blast-furnace smelting is possible only if their high-temperature properties are improved. The improvement of these properties is possible as a result of optimizing the basicity and increasing the MgO content, which affects the structure and properties of the silicate bond. This work is carried out within a framework of the government order (No. FZRU-2020-0011) of the Ministry of Science and Higher Education of the Russian Federation.

Influence of Partially Reduced Pellets on Technical and Economic Features of Blast-Furnace Smelting

2021 ◽  
Vol 51 (7) ◽  
pp. 461-467
Author(s):  
I. S. Bersenev ◽  
I. S. Vokhmyakova ◽  
A. V. Borodin ◽  
Yu. A. Chesnokov ◽  
S. P. Pigarev ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Smelting ◽  
Reduced Pellets ◽  
Furnace Smelting

Digital Technology Advancements in Knowledge Management in Domestic Tour Products in the Russian Federation

2021 ◽  
pp. 135-148
Author(s):  
Vardan Mkrttchian ◽  
Viacheslav Voronin
Keyword(s):  
Artificial Intelligence ◽  
Knowledge Management ◽  
Supply Chain ◽  
Life Cycle ◽  
Russian Federation ◽  
Practical Implementation ◽  
Digital Twins ◽  
Software Modules ◽  
Multi Agent ◽  
The Russian Federation

This chapter discusses the capabilities with problem-oriented digital twin avatars, supply chain, volumetric hybrid, and federated-consistent blockchain use to the nature of knowledge. The goal of this chapter is a theoretical study and practical implementation in the form of basic models and software modules and artificial intelligence algorithms in managing the life cycle of an internal Russian tour product. A laboratory for digitization and management, using multi-agent models of intelligent digital twins-avatars, is created. The purpose of these studies is to solve a scientific problem.

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