Method for taking samples

Antti Grönroos (Inventor), Jorma Ihalainen (Inventor), Hanna Kyllönen (Inventor), Hannu Mursunen (Inventor), Pentti Pirkonen (Inventor), Hannu Sekki (Inventor), Erkki Räsänen (Inventor), Pekka Savolahti (Inventor), Teemu Työppönen (Inventor), Pertti Vastamäki (Inventor), J. Rakkolainen (Inventor)

    Research output: PatentPatent application


    The invention relates to a method and equipment for taking a sample from a suspension containing solids and liquid. One or several samples are fractionated from the feed suspension in a fractionating chamber (1; 1.1 - 1.5) by means of one or several fractionating elements (2.1 - 2.5) so that the formation of a cake onto the surface of the fractionating element or the blocking of the fractionating element is prevented during fractionation by using ultrasonic technology and/or by rotating the fractionating element. The invention can be used, for example, for taking samples from process waters.
    Original languageEnglish
    Patent numberWO07135226 A1
    IPCG01N 1/18,B01J 19/10,B01D 33/54,C02F 1/36
    Priority date24/05/06
    Filing date23/05/07
    Publication statusPublished - 29 Nov 2007
    MoE publication typeNot Eligible


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