CO2膨胀烟丝线燃油焚烧炉熄火问题的解决

Solution to Flameout of Oil-fueled Incinerator in CO_2 Expanded Tobacco Line

CO2膨胀烟丝生产线在运行过程中存在焚烧炉熄火现象,造成焚烧炉工作稳定性差,难以满足生产和工艺的要求。通过对燃烧条件和故障原因分析可知,导致焚烧炉熄火的主要原因:一是油气配合比例失调;二是喷嘴处柴油雾化效果差,根部火焰虚弱。为此对焚烧炉进行了改进:①对差压式调节阀进行改造,使油气混合比合适;②在喷油枪前端的铜垫圈上开一个小油槽,增加二次引火源,使火焰根部更加稳定。通过改造有效解决了焚烧炉熄火问题,使焚烧炉的工作状况和燃烧的稳定性得到了改善。

The flameout of oil-fueled incinerator in CO2 expanded tobacco line deteriorated its working stability. By analyzing the conditions of combustion and causes of failure, the flameout was attributed to that oil and air were out of proportion, oil was not well atomized at nozzle and ill burning status existed at combustion zone. The incinerator was improved as following： 1 ） improving the differential pressure regulating valve to obtain proper proportion of oil to air; 2） machining an oil groove on the copper washer at the front end of oil nozzle as a secondary ignitor to stabilize oil combustion. The problem of flameout was effectively resolved, and the working status and combustion stability of the incinerator were improved accordingly.