Individual Components of the Coal Firing Systems with Fluidised Beds and their Influence on the Downtime and Maintenance of Energy Conversion Equipment

摘要

The SKO-ENERGO Co. in Mlada Boleslav put online in the autumn of 1998 two coal-fired boilers with circulating fluidised bed. The output of the boilers in question is 140 tonnes of hot steam per hour. The boilers were jointly delivered by the consortium of the two companies, namely ALSTOM and VITKOVICE. To this day, the boilers have been in operation for about 28,000 hours. The following paper deals with the history of origin, development and solutions of several operational problems that have been encountered during the period of boilers' service.