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根据从高炉风口部位吹入废塑料,由脱机(脱离计算机)模型进行的热分解、燃烧和气化反应的实验结果分析,得到了以下结论。(实验使用的原料是将不含氯的电线包裹材料——聚乙稀破碎后的废塑料) (1)尽管在风温1250℃,富氧率为0的送风支管内吹入1000~2000μm的废塑料,仅其表面呈熔融状态,送风支管及风口内均未发生燃烧。将废塑料与煤粉混合吹入也没有发生燃烧。 (2)在高炉风口部位和循环区内颗粒滞
The following conclusions are drawn from the experimental results of the pyrolysis, combustion and gasification reactions taken from the off-line (off-computer) model based on blowing waste plastic from the blast tuyere site. (Raw materials used in the experiment are non-chlorinated wire wrapping materials - Polyethylene crushed waste plastic) (1) Although the air blowing at an air temperature of 1250 ° C and an oxygen enrichment rate of 0 is blown into the air manifold of 1000 to 2000 μm Of the waste plastic, only the surface was molten state, the air supply branch and the tuyere did not burn. Combustion of waste plastics and pulverized coal injection did not occur. (2) In the blast furnace tuyere site and the cycle of particle lag