EFFICIENT COMBUSTION OF COAL IN BAGASSE/COAL FIRED BOILERS USED FOR COGENERATION IN THE SUGAR INDUSTRY

摘要

Cogeneration with bagasse/coal fired boilers has become increasingly important in the sugar industry. This has not only led to increased steam temperatures and pressures but also to more reliable and efficient coal firing systems. Reliability and efficiency have become key factors, especially when firing coal. Various ways to optimize these factors, both from an operational as well as a design point of view are discussed in the poster paper. Coal grading varies considerably throughout the industry. In many cases the quality of the available coal has dropped. This has required new studies into how the clean efficient combustion of lower quality coal can be ensured on spreader stoker fired boilers. Some results and some main influences are discussed in the paper.