燃氣燃油熱風爐
用途與特點:
在烘幹工藝以及濕法造粒的生產工藝中,熱風爐是一種必要的相關設備,它為烘幹機係統提供了必要的熱源。該係列燃氣燃油熱風爐具有溫度高、壓力低;控溫精確,熱能利用率高等特點。結構緊湊,節約了熱風爐的占地麵積; 大型熱風爐尾部設置空氣預熱器,提高熱風爐效率;對流受熱麵在嚴謹計算的基礎上采用較高的合理的煙氣流速,以保證爐體的充分換熱,保障熱風爐較高的熱效率。
Gas /Oil Hot Air Stove
Use and Features:
In the drying process and the wet granulation process, the hot air stove is a necessary related equipment, which provides the necessary heat source for the drier system. The series of gas/oil hot air stove has the features of high temperature, low pressure, accurate temperature control and high utilization of heat energy. The air pre-heater is set up in the tail of large hot air stove to improve the efficiency of the hot blast stove. The convective heating surface adopts a higher reasonable flue gas flow rate on the basis of rigorous calculation to ensure the full heat transfer of the furnace body and the high thermal efficiency of the hot air stove.
熱風爐鍋爐采用回水引射,解決了鍋殼式鍋爐的管板裂紋、鍋筒下部鼓包、水冷壁爆管、熱效率低、出力不足,煤種適應性差等問題。
爐膽內裝有內彎水管,增加了受熱麵積。但由於爐膽水冷程度較大,爐溫相應降低,因此,一般適於燒煤。如在爐內加砌耐火磚,保持爐膛較高溫度也可燒較差煤種。
烘幹機蒸汽鍋爐水循環較好,凡被煙氣衝刷的部位都有水冷卻,整個結構彈性好。燃燒部分采用雙層爐排燃燒室,升溫、升壓快,對未燃盡氣體經過二次燃燒,起到燃燒充分,消煙、除塵的作用。
爐體上部布置的彎水管為對流受熱區,爐體下部布置的爐排管及爐膽為受熱區,爐體結構和煙氣流程,布局合理,傳熱良好,結構緊湊。該鍋爐設計合理,結構簡單,操作、維修方便,占地麵積小,基建投資少,是小型企事業單位生產用汽,取暖等較理想的設備。