电厂脱硫工艺的石灰石输粉系统的原理是什么?

2025年04月08日 05:21
有4个网友回答
网友(1):

1、电厂脱硫工艺的石灰石输粉系统简介:
系统包括一个石灰石粉仓,粉仓设置一个出口,出口配置1套石灰石粉一级气力输送系统。石灰石粉仓的物料由散装罐车运来送入石灰石粉仓内。
物料从石灰石粉仓的下部手动插板阀,通过气动进料阀进入计量料仓,装料量达到设定值后,打开计量料仓下的排料阀,物料进入下料料仓,流入变频调节给料螺旋输送机,利用压缩空气将物料吹送到锅炉炉膛。
2、电厂脱硫工艺的原理
将石灰石粉磨至150目左右,用压缩空气喷射到炉内最佳温度区,并使脱硫剂石灰石与烟气有良好的接触和反应时间,炉膛内的热量将吸收剂(石灰石粉、消石灰或白云石等)煅烧成具有活性的CaO粒子,这些粒子与烟气中的SO2反应生成硫酸钙(CaSO4)和亚硫酸钙(CaSO3)。
CaCO3→Cao+CO2
CaO+SO2+1/2O2→CaSO4

这些反应产物和飞灰一起被除尘设备所捕获。

网友(2):

炉内添加石灰石,炉内固硫双碱法脱硫海水脱硫 等等。 温度低是完全可以采用玻璃钢外壳,内部设置填料、喷头等脱硫工艺 脱硫技术分类(按相对燃烧

网友(3):

可以机械输送,如提升机、螺旋机等,细点的粉可以气体输送

网友(4):

是用气压送粉的

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