61.
    发明专利
    未知

    公开(公告)号:DE602005018233D1

    公开(公告)日:2010-01-21

    申请号:DE602005018233

    申请日:2005-07-08

    Inventor: MATULA JOUNI

    Abstract: A method of feeding chemical to a liquid in an open space or flowing in an open space so that the chemical is fed to the liquid by means of a special mixing device or several special mixing devices by means of feed liquid introduced to the mixing device separately from the chemical by allowing the chemical and the feed liquid to discharge essentially simultaneously through the nozzle opening of the mixing device, the opening being located under the liquid level in the space, to the liquid in the space or flowing in the space.

    63.
    发明专利
    未知

    公开(公告)号:FI20031468A0

    公开(公告)日:2003-10-08

    申请号:FI20031468

    申请日:2003-10-08

    Inventor: MATULA JOUNI

    Abstract: A method to feed a chemical into a liquid flow using a feed device including a nozzle casing having an isolated mixing space including: feeding the chemical to the isolated mixing space in the feed device; feeding a mixing liquid to the isolated mixing space; mixing the chemical and the mixing liquid in the isolated mixing space to form a mixture of chemical and mixing liquid, and feeding the mixture of chemical and mixing liquid to the liquid flow.

    Method and apparatus for feeding chemicals into liquid flows

    公开(公告)号:FI110015B

    公开(公告)日:2002-11-15

    申请号:FI20012322

    申请日:2001-11-28

    Inventor: MATULA JOUNI

    Abstract: A liquid chemical solution is mixed into a second liquid in a mixing apparatus(34). An annular flow of white water is formed in the mixer through flange(52). A retention chemical solution is fed tangentially into the mixer to give a spiraling chemical flow that is guided inside the annular flow of the white water. The chemical is allowed to mix with the white water and is then fed into a pulp suspension stock flow traveling towards a papermaking machine headbox. An independent claim is included for: apparatus for mixing a liquid chemical solution into another liquid using the method detailed above. Preferred Features: - Use of a third fluid flow inside the spiral feed chemical flow is disclosed as is the use of a range of different liquids. The retention chemical is at least partly a polymeric chain. Various configurations for the mixer(34) are detailed as are means to regulate some or all of the liquid flows.

    66.
    发明专利
    未知

    公开(公告)号:FI108802B

    公开(公告)日:2002-03-28

    申请号:FI980437

    申请日:1998-02-26

    Inventor: MATULA JOUNI

    Abstract: The present Invention relates to a method of and apparatus for feeding a chemical into a liquid flow. The method and apparatus according to the invention are most preferably utilized for feeding a retention aid into fiber suspension flow going to the headbox of a paper machine so that in a mixing apparatus (34) feeding liquid is added into said retention chemical solution, prior to introducing said solution into the fiber suspension flow (70) guided to the paper machine, which feeding liquid is preferably some circulation water from the paper mill or some other non-clean liquid.

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