Design and application of digital management system for the sinter raw material plant
To solve the problems existed in iron and steel enterprise material plant, such as complex sources resulting in variety of materials, inaccurate inventory statistics leading to high cost, unpredictable external factors affecting material plant, etc., a digital management system is introduced in this paper. Firstly, the practical requirements and the process of material plant are analyzed. Based on the analysis, the new grid management and material balance methods are developed. Applying these methods, a new management system for material plant is designed, whose system configuration, hardware architecture, data flow, and functions of modules are introduced in details. Such system has been implemented in a large-scale iron and steel corporation sinter raw material plant. The operation results show that, this system has excellent capabilities and a promising application future in industries.
TECHNICAL PROGRESS IN BF BURDEN BENEFICIATION AT ANYANG STEEL
In recent years, a series of technique for BF burden preparation have been adopted at Anyang Iron Steel Co., to stabilize raw materials and sinter properties, especially strength and metallurgical properties, and BF operation has been improved.
Metodologia de análise do desempenho da usina de concentração da Samarco Mineração S.A. baseada em simulação das operações.
This project has for objective to create a methodology for analysis of the iron ore concentrator performance at Samarco Mineracao S.A., based on the operations simulation. The adopted boarding restricts to the equipment operational efficiency and the productive process stages that, by the way, can be classified as a continuous industrial process. For the plant operations modeling was used the ARENA software from Rockwell Software, which is a simulation system of discrete events. An adaptation, aiming at to adjust this software for application in a continuous system was necessary to make possible the project. The created tool is a discrete simulation system from a discrete events model where the continuous production process was separated in time and modeled, using stochastic (resources availability) and deterministic variables (resources capacity). With the use of this tool it was possible to develop a specific simulator for plant operational scenes analyses. This simulator allows that changes in the plant operation form can be evaluated without direct intervention necessity in the real system, what it makes of this powerful tool an allied one in the operations strategical planning, answering in clear way are evaluated questions it type? “What would happen if...?”, so common when alterations in productive systems are planned.