Factors affecting the burner flame?

Gasifier burner flame? There are many factors that have an impact; the size and angle of the central oxygen neck, the oxygen flow rate, as well as the flow rate of the external oxygen, all affect the atomized flame emitted by the burner.

The factors that may affect the flame length of the burner are as follows: a) The better the premixing and initial atomization take place in the small mixing chamber within the burner head, enabling the water-coal slurry to mix and atomize evenly with oxygen as quickly as possible, the shorter the flame will be； When premixing and initial atomization are poor, the flame becomes longer. b) For larger coal particles, they possess a higher kinetic energy velocity after leaving the nozzle, and thus their residence time in the gasification furnace is shorter than that of smaller particles; when there are more large particles in the water-coal slurry, the flame becomes longer. c) When the load of the vaporization furnace is low, the dark zone of the flame shortens, and the flame length becomes shorter. d) Coal with a high ash fusion point, or coal slurry with a high ignition point, results in delayed ignition and longer flames. e) Moisture has a significant impact on the combustion process of individual droplets of water-coal slurry. Since the heating and evaporation of water takes some time, the volatiles in the slurry droplets begin to precipitate only after most of the water has evaporated; as a result, the water content in the slurry droplets delays the ignition of the water-coal slurry. When the concentration of the water-coal slurry is low, the flame becomes longer. f) When the oxygen flow rate at the center is high and the flow velocity is great, it enables the water-coal slurry to disperse backward, resulting in a longer flame. g) The youngest bituminous coal, whose degree of coalification is only slightly higher than that of lignite, has high volatile matter and high moisture content; it is commonly referred to as a long-flame coal, and when used in coal slurry gasification, it produces a longer flame. h) A burner with a large atomization angle results in a shorter flame. i) When the operating pressure of the vaporizer is high, the flame is short.