本发明涉及一种煤粉喷嘴装置，连接煤粉混合气体输入装置和炉膛，包括主体，主体内设有一次风喷嘴、二次风喷嘴、三次风喷嘴和中央混合气室，一次风喷嘴、二次风喷嘴和三次风喷嘴并行设置；一次风喷嘴与中央混合气室连通，以煤粉、空气和煤粉燃烧产生的烟气为主要成分的主气流从一次风喷嘴和中央混合气室进入炉膛；二次风喷嘴与一次风喷嘴连通，以空气或/和助燃剂为主要成分的二次气流从二次风喷嘴和一次风喷嘴的主气流会合再经过中央混合气室进入炉膛；以空气和煤粉燃烧产生的烟气为主要成分的三次气流从三次风喷嘴进入炉膛；本发明的煤粉喷嘴装置通过调整主气流、二次气流和三次气流的大小和成分比例来调整火焰大小，并使煤粉达到最高燃烧率。
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The utility model relates to a lens used for improving the diffraction efficiency of a blue-ray disc and a China high definition disc, which comprises a first lens surface (1) and a second lens surface (2), wherein the first lens surface is a free curved surface, and the second lens surface is an as.....
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The invention relates to the technical field of wireless communication and discloses a double radio frequency scheduling method for quick switching. The method comprises: calculating and collecting measurement data of a plurality intelligent triggers according to metric values of different layers of.....
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