一、前言在一九八○年燃油锅炉改为烧煤锅炉时,我厂安装两台链条炉排锅炉(型号SZL-10-13-A)。投入运行后出现问题较多。为达到既保证生产又经济运行的目的,对这两台锅炉的改造就提到日程上来了。本炉在运行中出现的主要问题是:在燃烧中质煤时,经测热效率才65.49％;烧劣 I. Introduction When the oil-fired boiler was changed to a coal-fired boiler in 1980, our factory installed two chain grate boilers (Model SZL-10-13-A). Put into operation more problems. In order to achieve the purpose of ensuring both production and economic operation, the renovation of these two boilers is mentioned on the agenda. The main problems that occur in the operation of the furnace are as follows: when the quality coal is burned, the measured heating efficiency is 65.49%; the burning is inferior