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气力输送粉末输送泵中接料器和供料器的选型原则

Time: 2016/8/26 9:32:47

    接料器和供料器是物料与空气混合并送入输料管的一种设备。在吸送式气力输送粉末输送泵装置中称为接料器,在压运式气力输送粉末输送泵装置中称为供料器。接料器的作用不仅要把物料送进输料管,而且要使物料与空气充分混合,并使物料容易加速。另外还有定量供料的作用。供料器是气力输送装置咽喉,它对提高生产率和减少管网压损有较大影响,是整个装置中的关键设备。在压运式气力输送粉末输送泵装置的供料器,还应有闭风的作用。因此,在设计和选用接料器和供料器时应该考虑以下原则:
    1.能定量、均匀、分散地供料,保证物料和空气在接料器中能充分混合。
    2.不漏气、不漏料、不产生物料颗粒的破碎。
    3.阻力小、功率消耗低,尽可能使进入气流的物料流向与气流的流动方向一致,避免逆向进料,以降低气流推动物料的能量消耗。
    4.喂料通顺,动作可靠,操作方便,经久耐用。
    5.供料器需具有气密性,以保证其供料量和防止空气外溢。
    6.结构简单、占地面积小、高度低、操作方便。

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