怎么延长滤布使用寿命

2025-03-16 20:49:59
推荐回答(1个)
回答1:

压滤机上的滤布使用一段时间后,由于腐蚀、老化、机械磨损等原因,势必发生破损。滤布破损严重时,就需要全部换掉。滤布更换工作在常人眼里是一件既简单又容易的事情。其实不然,换滤布是一项需要细心与责任心的工作。滤布更换质量的好坏,与事前的准备工作、事中的工作态度密切相关。当然,正确的使用和维护也很重要。它们均直接影响滤布的过滤效果和使用寿命,并对后续工序或其它用酸装置的运行产生较大影响。
  1滤布更换前的准备工作在通常情况下,卸掉旧滤布前必须将压滤机滤板上方的所有部件清理、洗涤干净,最好将压滤机上进行的维修工作全部结束。取下旧滤布后,用高压水洗净滤板,保证滤板无结垢、滤孔无堵塞、滤板下方的导流孔畅通,即可进行新滤布安装。这样,一方面,可避免压滤机上方的垢物落到滤板上堵塞滤孔,影响新滤布的平整度,或垢物落到新滤布上,污染滤布,降低过滤效果;另一方面,可避免在压滤机上作业的人员踩到落在滤板或新滤布上的垢物,使之紧紧地粘附在滤板或新滤布上,或踩到落在滤布上的坚硬物,擦伤滤布。应禁止将工器具随意丢在滤布上损伤滤布。事实告诉我们:准备工作不到位,新滤布的使用情况将大打折扣,使用寿命也将大大缩短。有时,换上的新滤布,一使用就发现破洞,或使用一二天就出现破损,尽管经过修补,滤布的使用状况已经发生了改变,破损的频率必然加快,原本可使用三、五个月的滤布,最后顶多勉强维持个把月。滤布频繁破损,若不及时修补,成品稀酸或各洗涤液中的含固量必然增加。其后果是:一方面,稀酸质量下降,对后续浓缩生产及其他用酸装置的运行不利;另一方面,压滤机虑室及相关设备、管道结垢加剧,装置频繁停车,产能发挥必受影响。

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