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我们应该如何预防热风炉的燃烧器灭火呢
发布时间:2020/09/10 浏览次数:

  很多的热风炉燃烧器都是存有缺陷的,在热风炉停炉之后对燃烧器检查发现,各个燃烧器钝体都会出现被磨损,变形比较大,特别是热风炉的燃烧器钝体因磨损已成零落,在炉内正常的空气动力工况会遭受到毁坏,因此就会引起炉内熄灭稳定性降低,炉内熄灭状况遭到较大扰动的时候热风炉非常容易出现灭火的情况。避免热风炉燃烧器灭火,就需求做到以下几点:

  

  Many hot blast stove burners are defective. After the stoppage of the hot blast stove, the inspection of the burner shows that the blunt bodies of each burner will be worn and deformed greatly. Especially the blunt bodies of the burner of the hot blast stove will be destroyed in the normal aerodynamic condition of the furnace because of wear and tear. When the extinguishing stability in the furnace is reduced and the extinguishing condition in the furnace is greatly disturbed, the hot blast stove is very prone to fire extinguishing. To avoid fire extinguishing by hot blast stove burner, the following points are needed: 1、进一步增强对运转人员的培训。经过技术讲课、现场技术考问等方式,进步运转人员技术程度;经过展开事故料想,反事故演习等方式,进步管理人员的处置事故才能,防止燃烧器灭火事故的扩展。

  

  1. Further strengthen the training of operators. Through technical lectures and on-site technical questioning, the technical level of operators will be improved; through unfolding accident anticipation and anti-accident exercises, the management personnel will be improved in dealing with accidents, so as to prevent the expansion of burner fire extinguishing accidents.

  

  2、增强对设备的检查维护,特别是停运备用机组,发现设备隐患,如燃烧器钝体磨损、零落等,及时通知检修人员停止处置。

  

  2. Strengthen the inspection and maintenance of equipment, especially the shutdown of spare units, find hidden troubles of equipment, such as burner blunt body wear, scattered, and so on, promptly notify maintenance personnel to stop disposing.

  

  3、增强对入炉煤的掺配工作的管理,减少入炉煤特别是煤质低位发热值的变化幅度,防止由于煤质变化(低位发热值高)而形成热风炉炉膛内结焦,大块焦落下时扰动炉内熄灭工况,惹起热风炉灭火事故的发作。入炉煤质的低位发热值太高时容易形成炉膛结焦;而入炉

  

  3. Strengthen the management of coal blending, reduce the variation of low calorific value of coal, especially coal quality, and prevent coking in the hearth of hot blast stove caused by coal quality change (high calorific value at low level), disturb the extinguishing condition in the furnace when large coke falls down, and cause fire extinguishing accident of hot blast stove. When the low calorific value of coal quality is too high, it is easy to form furnace coking; but when coal quality is too high, it is easy to form furnace coking.

  

  煤质低位发热值太低时则容易形成热风炉熄灭不稳定,热风炉主汽压力升不起,机组带不起负荷。如何掺配更适宜,有待做进一步的研讨工作。

  

  When the low calorific value of coal is too low, it is easy to form unstable quenching of hot stove, the main steam pressure of hot stove can not rise, and the unit can not carry load. How to mix it more appropriately remains to be further studied.

  

  4、增强对热风炉熄灭的调理,防止燃煤由于缺氧熄灭而产生复原性气体,使得燃煤的ST值降低,惹起热风炉内结焦。除此之外,依据煤质情况调整好炉内配风,防止由于炉内火焰偏斜贴壁而惹起炉内结焦。

  

  4. Strengthen the regulation of hot-blast stove extinguishing to prevent coal combustion from producing recoverable gas due to anoxic extinguishing, which reduces the ST value of coal combustion and causes coking in hot-blast stove. In addition, the air distribution in the furnace should be adjusted according to the coal quality to prevent coking in the furnace due to the deflection of the flame in the furnace and its adherence to the wall.


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