The invention discloses a waste heat boiler system with double inlet air and double air outlet, which comprises a superheater, an evaporator, a coal economizer, a water preheater, a high temperature air inlet, a middle temperature air inlet, an intermediate exhaust product and a tail exhaust port. The waste heat boiler system of the invention improves the quality of the steam by increasing the air inlet temperature of the waste heat boiler, and improves the generating capacity of the waste heat generating set. The utility model is suitable for the low temperature waste heat recovery system such as sintering, thereby improving the energy utilization efficiency and reducing the energy consumption.
【技术实现步骤摘要】
【技术保护点】
一种双进风、双出风的余热锅炉系统,包括锅炉本体(1),其特征在于:所述锅炉本体(1)的设高温进气管(11)、中温进气管(10)、中间排气管(3)、尾部排气管(2),所述设过热器(13)、蒸发器(12)、水预热器(25),所述高温气体由高温进气管(11)进入余热锅炉(1)的过热器(13)前的高温段,中温气体由中温进气管(10)进入余热锅炉(1)的蒸发器(12)前的中温段,然后经换热后,一部分气体从锅炉的蒸发器(12)或高压省煤器(23)后的中间排气管(3)被高温循环风机(5)引出,并送去冷却设备,循环使用,另一部份气体从尾部排气管(2)被低温循环风机(4)引出。
【技术特征摘要】
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