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FILTRATION APPARATUS AND METHOD

  • US 3,679,052 A
  • Filed: 03/27/1970
  • Issued: 07/25/1972
  • Est. Priority Date: 03/27/1969
  • Status: Expired due to Term
First Claim
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2. A pressure filter according to claim 1 and further comprising a receptacle for storing the filter aid in suspension in a liquid, means for selectively supplying filter aid from the storage receptacle to the inlet of the filter chamber, a holding tank, means for conducting material from the cleaning outlet of the filter chamber to the holding tank, means for separating a mixture of filter aid liquid and the impurities extracted upon filtering, such mixture constituting the aforesaid material, into a first fraction containing predominantly filter aid and a second fraction containing predominantly impurities, means for supplying the material from the holding tank to the separating means, means for supplying the first fraction from the separating means to the filter aid storage receptacle, and means for supplying the second fraction from the separating means to the holding tank.

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