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一、二次风的作用移动火床炉(不带拋煤机的。下同)二次风有如下几方面作用: 1.加强扰动,促使炉膛中的氧气同可燃气体(挥发物和还原性气体)及悬浮的燃料颗粒充分混合,从而起到强化燃烧和稳定燃烧的作用。这是二次风的主要作用。因此,空气、水蒸汽、烟气以及它的混合物均能作为二次风介质。实际运行证明,即使是分段送风,也会出现炉排前段(新燃料区及挥发物析出与燃烧区)和后段(燃尽区)的氧气过剩以及中段
The role of the primary and secondary air moving fire bed furnace (without the coal thrower. The same below) the secondary air has the following functions: 1. To strengthen the disturbance, to promote the oxygen in the furnace with combustible gases (volatile and reducing Gas) and suspended fuel particles are thoroughly mixed, thereby enhancing combustion and stabilizing combustion. This is the secondary role of the wind. Therefore, air, water vapor, flue gas and its mixture can be used as secondary air media. The actual operation proves that even in the case of staged blowing, the oxygen excess in the front section of the grate (new fuel zone and volatile deposition and combustion zone) and the rear section (burnout zone), and the middle section