| Revista: | Anais da Academia Brasileira de Ciencias |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000417717 |
| ISSN: | 0001-3765 |
| Autors: | Rodrigues, Diulia C.Q1 Soares-Junior, Atilio P2 Costa-Junior, Esly F3 Costa, Andrea O.S3 |
| Institucions: | 1Universidade Federal do Espirito Santo, Programa de Engenharia Quimica, Alegre, Espirito Santo. Brasil 2Fabrica de Cimento Nassau, Cachoeiro de Itaperim, Espirito Santo. Brasil 3Universidade Federal de Minas Gerais, Escola de Engenharia, Belo Horizonte, Minas Gerais. Brasil |
| Any: | 2017 |
| Període: | Dic |
| Volum: | 89 |
| Número: | 4 |
| Paginació: | 3123-3136 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | Cement is one of the most used building materials in the world. The process of cement production involves numerous and complex reactions that occur under different temperatures. Thus, there is great interest in the optimization of cement manufacturing. Clinker production is one of the main steps of cement production and it occurs inside the kiln. In this paper, the dry process of clinker production is analysed in a rotary kiln that operates in counter flow. The main phenomena involved in clinker production is as follows: free residual water evaporation of raw material, decomposition of magnesium carbonate, decarbonation, formation of C3A and C4AF, formation of dicalcium silicate, and formation of tricalcium silicate. The main objective of this study was to propose a mathematical model that realistically describes the temperature profile and the concentration of clinker components in a real rotary kiln. In addition, the influence of different speeds of inlet gas and solids in the system was analysed. The mathematical model is composed of partial differential equations. The model was implemented in Mathcad (available at CCA/UFES) and solved using industrial input data. The proposal model is satisfactory to describe the temperature and concentration profiles of a real rotary kiln |
| Disciplines | Ingeniería |
| Paraules clau: | Ingeniería química, Hornos rotatorios, Cemento, Escoria, Análisis dinámico, Modelos matemáticos |
| Keyword: | Chemical engineering, Rotary kilns, Cement, Clinker, Dynamic analysis, Mathematical models |
| Text complet: | Texto completo (Ver HTML) |
