Análisis de las Variables que Influyen en la Calidad de Coque Metalurgico

Abstract

This paper analyzes the main variables involved in the blending of coking coals for metallurgical coke production. The primary objective is to establish the necessary parameters for obtaining high-quality metallurgical coke that meets international standards and ensures optimal performance in blast furnaces during steel production. The Deming Cycle (PDCA) is incorporated as a continuous improvement strategy to generate value for the customer and create a competitive advantage in the international market. The variables analyzed include coal particle size distribution, reflectance, flowability, free swelling index, coal ash content, time, temperature, and charge density. Laboratory analyses were conducted to observe the behavior of each variable and its influence on the blends. Additionally, coke production results were evaluated, primarily considering cold mechanical strength, ash content, volatile matter content, CSR (Coke Strength after Reaction), and CRI (Coke Reactivity Index).The study was complemented by a literature review of previous research by various authors, and by the author's professional experience in quality control of minerals used in the steelmaking process.