| The gas pollution produced in the steel workshop furnace is quite severe, especially inthe tap hole area. The improper increasing of wind quantity for the tap hole dedusting causeserious energy consumption; the sealing measurement for pollution resource restrict theoperating room, leading to variable industrial incidents. It is inconvenient and infeasible tomake field test on the dedusting in tap hole area. A numerical simulation is conducted on thegas particle capture to provide suggestions for the structure and wind distribution optimizing.Firstly, the amount of air draft; height of sealed room and size of dust cage arequalitatively analyzed for the affection on particle capture efficiency. It is determined that asmaller height of the room and a larger amount of air draft and width of the cage maycontribute to the particle capture. It is recommended that: size for mouth of the dust cage is2.2×2m; height of the room is below2m; air draft rate is72180m3/h.Secondly, the application of gas curtain is studied. Velocity; method and location of theair blow are discussed, and it is concluded that: a larger blow velocity; an upward blowmethod; a closer location of blow mouth to the tap hole area and a longer blow mouth alsobenefit the efficiency of particle capture. The recommended operating condition is that: thewind blow rate is5m/s and can increase the gas particle capture rate by9.14％.Finally, the affection of fluid flow direction; press loss in the cover; velocity and flowfield on the dust collection are discussed. The recommended structure is that: the angle ofinclination is45°,the diameter of tube is the same as the width of dust cover. |
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