In this paper, a knowledge-based information system for the plant operation of steel making company has been proposed. The system, which is named as K-VRS(Knowledge-based Virtual Reality System), provides a connection between ERP plant maintenance module and knowledgebased engineering methodologies, and thus, enables network-based highly effective plant maintenance process. The developed system...

Poor air quality is a common fact for all areas with base industry. The city of Zenica was once the metallurgical centre of Ex-Yugoslavia and is therefore highly polluted at present. Air pollution peaked in 1987 when average concentration of pollutants was extremely high (daily average concentration of SO(2) was 1800 μg m(-3)). With the beginning of the war in 1992, integral production in the s...

Steel-making and continuous/mould casting are the key processes of modern iron and steel enterprises. The continuous and mould casting schedule of mixed whole/half charging plan is the bottleneck for the steel-making and continuous/mould casting process. However, it is very difficult to find a solution against the characteristics and complicated environment. This paper proposed a heuristic batc...

B. Wang, Z. G. Yang, X. F. Zhang, Y. T. Wang, C. P. Nie, Q. Liu, State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing, China Z. G. Yang, Special Steel Plant, Laiwu Iron & Steel Co. Ltd., Laiwu, China B. Wang, H. B. Dong, Department of Engineering, University of Leicester, Leicester, UK In the current study, a 260 mm × 300 mm bloom mould was investig...

The biomass and lipid productivity of Chlorella sp. MTF-15 cultivated using aeration with flue gases from a coke oven, hot stove or power plant in a steel plant of the China Steel Corporation in Taiwan were investigated. Using the flue gas from the coke oven, hot stove or power plant for cultivation, the microalgal strain obtained a maximum specific growth rate and lipid production of (0.827 d(...

The integrated scheduling problem of steel-making and continuous casting is discussed. To solve the problem we develop a scheduling system with the architecture of three tiers. Its main functions include: schedule making and adjusting, matching and optimization, abnormal logistics handling and production information management. A hybrid heuristic and optimization algorithm is developed for the ...

Conveyor belts reinforced with steel cords fail during operation for various of reasons, including corrosion of the cords from hostile solutions, impact fracture of the cords, splice failure, wear and longitudinal tears. Though steel cord belts are generally confined to applications requiring high belt tensions, they also have applications as high-lift short belts for in-plant handling of parti...

In the article methods of vibroacoustic diagnostics of high-power toothed gears are described. It is shown below, that properly registered and processed acoustic signal or vibration signal may serve as an explicitly interpreted source of diagnostic symptoms. The presented analysis were based on vibration signals registered during the work of the gear of a rolling stand working in Katowice Steel...

We describe the application of simulation modeling to estimate and improve quality and productivity performance of a steel cord manufacturing system. We describe the typical steel cord manufacturing plant, emphasize its distinguishing characteristics, identify various production settings and discuss applicability of simulation as a management decision support tool. Besides presenting the genera...

The optimal material processing in steel industry is difficult because of the multi-constituent and multiphase character of the commercial steels, variety of the possible processing paths, and plant specific equipment characteristics. This paper shows implementation of the genetic programming approach for crack presence modeling after rolling. The data (110 samples covering 7 different steel gr...