The external heated singeing machine adopts the new type of double-slit radiant high-efficiency burner to heat the roller, fabrics pass through the hot surface of the roller for contact singeing.
外热式圆筒烧毛机采用新型双狭缝辐射式高效火口加热圆筒，使织物经过灼热的圆筒表面进行接触式烧毛。
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Experiments show that a new-type pulverized coal burner with a slit bluff-body designed on the said principle is suitable for the ignition and flame stability of low volatile pulverized coal.