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近年来,循环流化床锅炉以其高效性能、清洁性能而应用广泛,然而在其运行的过程中,常常会出现一些故障,例如锅炉结焦,若出现锅炉结焦,将直接降低锅炉运行的经济性与安全性。本文结合近几年来循环流化床锅炉的运行情况,首先阐述循环流化床锅炉结焦的类型及现象,并就其结焦的原因,重点分析、论述其结焦的处理对策以及如何预防锅炉结焦,特别是燃用低发热量煤矸石的循环流化床锅炉在点火过程中容易出现结焦等方面,提出具体的操作方法,确保循环流化床锅炉运行的安全性与可靠性。
In recent years, circulating fluidized bed boilers have been widely used due to their high performance and cleaning performance. However, some faults often occur during operation, such as boiler coking. If boiler coking occurs, the boiler operation economy will be directly reduced And safety. Based on the operation of circulating fluidized bed boilers in recent years, this paper first describes the types and phenomena of coking in circulating fluidized bed boilers, and analyzes and discusses the reasons for the coking in circulating fluidized bed boilers, and discusses how to deal with coke and how to prevent boiler coking. Is to burn low-calorific coal gangue circulating fluidized bed boiler in the ignition process prone to coking and so on, put forward specific methods of operation to ensure the operation of circulating fluidized bed boiler safety and reliability.