中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

1404 records (took 0.031 seconds)

    Method, system and a computer program product for condition monitoring of a continuous element moving in a fiber web or paper finishing machine
    61.
    发明授权
    Method, system and a computer program product for condition monitoring of a continuous element moving in a fiber web or paper finishing machine 有权

    公开(公告)号：US10662584B2

    公开(公告)日：2020-05-26

    申请号：US16079877

    申请日：2017-02-24

    Applicant: Valmet Technologies Oy

    Inventor： Heikki Kettunen ,  Gerald Kramer ,  Tatu Pitkänen ,  James Sipprell ,  Todd Vandenheuvel

    IPC: B65H18/26 ,  D21G9/00 ,  G01L5/108

    Abstract: The invention relates to a method for monitoring the condition of a continuous element (44) moving in a fiber web or paper finishing machine, said monitoring being performed with a rotating machine element (41), which is equipped with a sensor assembly (24) that measures force or pressure and against which the continuous element moves. In the method, the machine element is made to rotate against the continuous element, a measurement signal (25) is generated between the machine element and the continuous element with the sensor assembly, and a cross-directional profile (21) of force or pressure generated between the machine element and the continuous element is formed from the measurement signal. Said moving continuous element is a fabric (32, 33) installed in a fabric run (22, 23) traveling via the machine element. In the method, the fabric is additionally installed in a fabric run, wherein it moves via said machine element equipped with a sensor assembly, a reference profile (35) is formed for the cross-directional profile after installing the fabric in the fabric run, the cross-directional profile formed from the measurement signal and representing force or pressure generated between the machine element and the fabric is compared with the reference profile, and information (37) is produced from the comparison for monitoring the condition of the fabric. The invention also relates to a corresponding system and a computer program product.

    Method for producing solid lignin
    62.
    发明授权
    Method for producing solid lignin 有权

    公开(公告)号：US10239904B2

    公开(公告)日：2019-03-26

    申请号：US15292079

    申请日：2016-10-12

    Applicant: Valmet Technologies Oy

    Inventor： Eric Enqvist ,  Ville Tarvo ,  Panu Tikka ,  Tobias Wittmann ,  Henrik Wallmo ,  Anders Littorin

    IPC: C07G1/00 ,  C08H7/00

    Abstract: Lignin-rich starting material is suspended in a first medium, which is acidic and aqueous, to form a aqueous acidic suspension, which is heated and allowed to form two continuous phases, a thermoplastic lignin phase and an aqueous phase. The thermoplastic lignin phase is separated from the aqueous phase and passed through a shape giving process into a second medium which is at a temperature lower than that of the thermoplastic lignin phase and in which the thermoplastic lignin phase is essentially insoluble. Solid lignin formed in the second medium is recovered.

    PRESS BELT, AN ARRANGEMENT IN A LONG NIP AND A METHOD OF MANUFACTURING A PRESS BELT
    63.
    发明申请
    PRESS BELT, AN ARRANGEMENT IN A LONG NIP AND A METHOD OF MANUFACTURING A PRESS BELT 审中-公开

    公开(公告)号：US20190040580A1

    公开(公告)日：2019-02-07

    申请号：US16066955

    申请日：2016-12-28

    Applicant: Valmet Technologies Oy

    Inventor： Jari Jannetyinen ,  Petteri Halme ,  Jori Onnela

    IPC: D21F3/02

    Abstract: The invention relates to a press belt for a shoe press. A press belt (5) is an endless loop made of elastomeric material and its outer surface (11) is provided with several grooves (13) to remove water. On the outer surface (11) of the press belt, there is at least one section where the depths (GD) of adjacent drain grooves, from the outer surface, change constantly. The invention also relates to an arrangement in a long nip and to a method of manufacturing a press belt.

    Industrial textile and use of the same
    64.
    发明申请
    Industrial textile and use of the same 审中-公开

    公开(公告)号：US20190040579A1

    公开(公告)日：2019-02-07

    申请号：US16075866

    申请日：2017-02-17

    Applicant: Valmet Technologies Oy

    Inventor： Rauno ENQVIST ,  Juha PAAVOLAINEN

    IPC: D21F1/00 ,  D03D13/00

    Abstract: The invention relates to an industrial fabric and its use. The industrial fabric (1) comprises several machine direction (MD) yarns (2, 2a, 2b) and several cross machine direction (CMD) yarns (3). The MD-yarns are twisted relative their longitudinal axis so that the twisted yams have sloped surfaces (4) at least on a web side surface (P) of the textile. The textile is usable in paper machine, pulp machine or filtering machine.

    METHOD AND ARRANGEMENT
    66.
    发明申请
    METHOD AND ARRANGEMENT 审中-公开

    公开(公告)号：US20180178222A1

    公开(公告)日：2018-06-28

    申请号：US15842439

    申请日：2017-12-14

    Applicant: Valmet Technologies Oy

    Inventor： Juha Tolvanen

    IPC: B03C3/08 ,  B03C3/02 ,  B03C3/41 ,  B03C3/47

    CPC classification number: B03C3/08 ,  B03C3/013 ,  B03C3/025 ,  B03C3/41 ,  B03C3/47 ,  B03C3/68

    Abstract: An electrostatic precipitator for removing particulates from boiler flue gas, the electrostatic precipitator comprising: discharge electrodes and collecting electrodes fitted in a gas passage, said electrodes being arranged in at least two electrical fields that are placed successively in relation to gas flow, the electrical field establishing at least one electrical unit in transversal direction of said gas passage, the electrical unit constituting a portion of the precipitator having ability to be de-energised independently, separately from the other electrical units of the electrostatic precipitator. The first electrical field of said at last two electrical fields is arranged to be first in said gas flow. The first electrical field comprises more electrical units than a second field following said first field.

    Production Line for Producing Fiber Webs and a Cooler
    69.
    发明申请
    Production Line for Producing Fiber Webs and a Cooler 审中-公开

    公开(公告)号：US20170292221A1

    公开(公告)日：2017-10-12

    申请号：US15484025

    申请日：2017-04-10

    Applicant: Valmet Technologies Oy

    Inventor： Tapio Pitkäniemi ,  Mika Viljanmaa ,  Jari Ilomäki

    IPC: D21F7/00

    CPC classification number: D21F7/00 ,  D21F9/00 ,  D21G1/00 ,  D21G1/0093

    Abstract: A cooler (144) providing gas blows and comprising at least one cooler module having at least one cooler module (41, 42, 43, 44) of the cooler (144) is curved to provide a gas turn module for turning run of the fiber web (W) from its main running direction 80-190°. The cooler (144) includes moisturizing at least one surface of the fiber web. Having a blowing zone (45, 46, 53) in which gas is blown toward a surface of the fiber web and that the cooler comprises at least one suction zone (51), in which the fiber web evaporated moisture is drawn away from the proximity of a surface of the fiber web. There are cooler modules on both sides of the fiber web. The cooler has a gas turn module located inside a curved fiber web run, which provides gas blows toward the curved fiber web during the run.

Patent Agency Ranking