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Method of cleaning porous ceramic filters

  • US 5,244,585 A
  • Filed: 06/25/1991
  • Issued: 09/14/1993
  • Est. Priority Date: 01/11/1991
  • Status: Expired due to Fees
First Claim
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1. A method of cleaning cylindrical porous ceramic filters in a filtration unit that removes impurities from a fluid by flowing said fluid in such a way that it passes through the side wall of each of said porous ceramic filters inwardly, which method uses a means of supplying a cleaning fluid, a path for circulating said cleaning fluid that includes said supply means and that accelerates said cleaning fluid up to a higher speed than a flow speed of said fluid, a means of supplying high-pressure air, and a mixing means that is provided downstream said circulation path and that jets said high-pressure air to mix with said cleaning fluid that has been accelerated in said circulation path and that flows at said higher speed, whereby a high-speed two-phase stream is generated, said porous ceramic filters being cleaned by supplying said high-speed two-phase stream which is a mixture of said high pressure air and the cleaning fluid in such a way that said stream passes through the side wall of each of said porous ceramic filters outwardly.

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