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    Application of single dust collector with convenient installation in cement industry
    share  | 19-07-31release views ID:20522
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Application of single dust collector with convenient installation in cement industry
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单机除尘器的工作原理是:含尘气体由进风口进入灰斗,然后向上进入过滤室,粉尘附着在滤袋外表面,净化后的气体由出风口经风机排到大气中。滤袋清灰由脉冲阀控制压缩空气脉冲清灰,每排滤袋配置一个脉冲阀,清灰时,清灰控制器发出指令,脉冲阀动作释放出高压气体,通过喷吹管上正对滤袋的小孔高速冲入滤袋,同时诱生一股二次气流,产生一种瞬间向下的冲击波,使滤袋上粉尘落入料斗排出。

  从原料进厂到水泥出厂所有环节的扬尘点均采用脉冲布袋除尘器进行粉尘捕集,所用布袋除尘器有三类,即单机脉冲布袋除尘器、气箱式脉冲布袋除尘器、回转喷吹式布袋除尘器。其中鉴于单机除尘器体积小、除尘效率高、安装方便,被大量应用到原料输送、配料、水泥发货等扬尘点位置。

  某水泥厂除尘系统运行中存在的问题与措施

单机除尘器由于其清灰方式属于在线清灰方式,且出厂设置均为依次喷吹清灰,在使用中发现存在如下问题:

(1)初次安装能很好地解决物料转运扬尘,但对物料变化不能适应,当随着转运物料中含粉量增加,其除尘效果有明显变差趋势;

(2)除尘器长期使用后内部清灰效果变差,压差增大,吸风罩时常出现正压,现场冒灰;


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