Method of and apparatus for distribution of paper stock in paper or board making machinery
AssigneeSandusky Technologies Limited
InventorsHarry Bowler, John William Leach
Life of this patent
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Abstract
An inlet chamber is connected to a nozzle section by way of a plurality of tubes. Diluting liquid for mixing with paper stock flowing through one or each of said tubes is fed into the tube via annular inlet means. To ensure thorough mixing, channel means leading into the annular inlet means is configured to create turbulent flow of diluting liquid prior to its introduction into the tube, for example, by consisting of a helical or spiral duct, or by being provided internally with baffle means.
Claims11
Paper stock distribution apparatus for a paper or board making machine comprising an inlet chamber connected to a nozzle section by way of a plurality of tubes, at least one of said tubes having annular inlet means whereby a diluting liquid can be fed in for mixing with paper stock flowing through said tube and having channel means leading into said annular inlet means, said channel means comprising a helical duct of reducing radius having an inlet tangential to said tube to create turbulent flow of diluting liquid prior to its introduction into said tube.
Paper stock distribution apparatus for a paper or board making machine comprising an inlet chamber connected to a nozzle section by way of a plurality of tubes, at least one of said tubes having annular inlet means whereby a diluting liquid can be fed in for mixing with paper stock flowing through said tube and having channel means leading into said annular inlet means, said channel means comprising a spiral duct of reducing radius having an inlet tangential to said tube to create turbulent flow of diluting liquid prior to its introduction into said tube.
Paper stock distribution apparatus comprising at least one tube positioned between an inlet header and a nozzle section, said tube having a mixing chamber for paper stock and diluting liquid, said mixing chamber being connected to a helical duct of reducing radius having an inlet portion being tangential to said tube and an annular inlet being in communication with said mixing chamber, whereby said duct creates turbulent flow of diluting liquid prior to its introduction into said mixing chamber through said annular inlet.
Dependencies are inferred from the claim text.