惰粉流化床协同分离消失模等黏性烟尘的除尘新方法研究

Study on new dust removal method of Filtering Adhesive Dusts Like Vanishing Mold Smokes with Inert Powder Fluidized Bed

创造性地把惰性粉剂流化床植入脉冲过滤除尘器中,使惰粉在脉冲喷吹清灰后,在线地预涂滤芯表面,隔离和过滤黏性气溶胶烟尘,尤其在消失模和树脂砂铸造高效除尘上有着广阔应用前景。惰粉鼓泡流化床对黏性烟尘的循环调质和分层属性使得惰粉得到充分使用,如此脉冲喷吹过滤器对消失模气化等黏性气溶胶烟尘的长效除尘成为可行。阐述了该除尘新方法的模型和运行机理,并对黏性聚团颗粒鼓泡流化床的属性,惰性粉剂碳酸钙的选型以及耗用量等计算做了有效的研究。

The inert powder fluidized bed has been creatively implanted into the pulse dust collector, so that the inert powder is pre-coated on the surface of the filter elements after the pulse is sprayed and cleaned, and the viscous aerosol smoke has been isolated and filtered. It specially has wide application prospect on the dust removal of lost foam and resin sand casting. The inertia powder bubbling fluidized bed has circular tempering and stratifying properties of the adhesive dust to make the inertia powder fully used. Thus in this way, a pulse jet filter is feasible for the long-term dust removal of sticky aerosol like adhesive casting dusts. The model and operation mechanism of the new dust removal method have been expounded. The properties of the viscous agglomerated particle bubbling fluidized bed, the selection of the inert powder calcium carbonate and the consumption have been effectively studied.