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公开(公告)号:US20160230099A1
公开(公告)日:2016-08-11
申请号:US15016993
申请日:2016-02-05
Applicant: Valmet Technologies Oy
Inventor: Tuomo Hilli , Pekka Tynjaelae , Henrik Romar
CPC classification number: C10B53/02 , C01B32/336 , C07G1/00 , C08H6/00 , C08K3/04 , C10L5/442 , C10L5/445 , C10L9/086 , Y02E50/10 , Y02E50/30
Abstract: A method of treating lignin-based material is provided, comprising the steps of subjecting lignin separated from lingo-cellulosic raw material to hydrothermal carbonization process at an elevated temperature, where carbonized lignin having increased carbon content is obtained, and stabilizing the obtained carbonized lignin under inert atmosphere at a stabilization temperature higher than the temperature of the hydrothermal carbonization process.
Abstract translation: 提供了一种处理木质素基材料的方法,包括以下步骤:在高温下将从纤维素原料分离的木质素进行水热碳化处理,其中得到碳含量增加的碳化木质素,并使得到的碳化木质素稳定在 在稳定温度高于水热碳化过程的温度下的惰性气氛。
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公开(公告)号:US20150275427A1
公开(公告)日:2015-10-01
申请号:US14428884
申请日:2013-09-18
Applicant: VALMET TECHNOLOGIES OY
Inventor: Piia Niemi , Markku Isoniemi , Tero Juutilainen , Kari Haaga
CPC classification number: D21C11/12 , F22B1/20 , F22B21/343 , F22G1/02 , F23J15/06
Abstract: An arrangement and a method in a soda recovery boiler, in a furnace (1) of which recovery boiler there are arranged screen tubes (7) and which recovery boiler comprises a second pass (9) in which is arranged at least one superheater (4′). The second pass (9) is arranged for being cooled with cooling medium coming from the screen tubes (7).
Abstract translation: 一种在苏打水回收锅炉中的装置和方法,在炉子(1)中,回收锅炉设置有筛管(7),并且该回收锅炉包括第二通道(9),其中布置有至少一个过热器 ')。 第二通道(9)布置成用来自筛管(7)的冷却介质冷却。
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33.
公开(公告)号:US11952226B2
公开(公告)日:2024-04-09
申请号:US17867441
申请日:2022-07-18
Applicant: Valmet Technologies Oy
Inventor: Jaakko Haapanen
CPC classification number: B65H19/126 , B65H19/2207 , B65H2301/41734
Abstract: An assembly for handling reel spools, comprising
linear support rails, having a first end and a second end, arranged parallel to each other, and
a reel spool cart arranged on the support rails,
the support rails being arranged at a first distance from each other, the first distance being greater than axial length of the reel spool, and
the cart being provided with a hoisting device configured to hoist the reel spool vertically from beneath of at least one of the support rails to at least partly above at least one of the support rails.-
34.
公开(公告)号:US20240003534A1
公开(公告)日:2024-01-04
申请号:US18251811
申请日:2021-11-02
Applicant: Valmet Technologies Oy
Inventor: Juha HILJANEN , Pekka LEHTONEN , Pertti TAPIAINEN , Mikko VARONEN
Abstract: A method for heating a heat exchange medium in a fluidized bed boiler (100), the method comprising burning first fuel (165) in a first furnace (162) of the fluidized bed boiler (100) to produce first flue gas (163); recovering heat from the first flue gas (163) to a heat exchange medium using a first heat exchanger (310); conveying the heat exchange medium from the first heat exchanger (310) to a second heat exchanger (320), of which at least a part is arranged in contact with a fluidized bed of the fluidized bed boiler (100); burning second fuel (175) in a second furnace (172) of the fluidized bed boiler (100) to produce second flue gas (173); conveying the heat exchange medium from the second heat exchanger (320) to a third heat exchanger (330); and recovering heat from the second flue gas (173) to the heat exchange medium using the third heat exchanger (330). A fluidized bed boiler (100) for performing the method. A loopseal heat exchanger (400) that is, when installed in a loopseal of a circulating fluidized bed boiler, configured to burn second fuel (175) in a second furnace (172) of the loopseal heat exchanger (400) to produce second flue gas (173); convey the heat exchange medium from the second heat exchanger (320) to a third heat exchanger (330); and recover heat from the second flue gas (173) to the heat exchange medium using the third heat exchanger (330).
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35.
公开(公告)号:US11859345B2
公开(公告)日:2024-01-02
申请号:US17628147
申请日:2020-09-03
Applicant: Valmet Technologies Oy
Inventor: Jorma Naamanka , Juha Nieminen
Abstract: A fabric for a paper or pulp technology has a longitudinal direction (MD) and a cross direction (CMD), and a first surface (FS) and a second surface (SS) in a fabric thickness direction (TD). The fabric (1) extends in the cross direction (CMD) from a first edge (FG) to a second edge (SG). The fabric (1) has an adaptable medium comprising at least one sensor. The adaptable medium is a deformable structure that adapts to the fabric where it is inserted and may be a string or a sheet configured to detect temperature, temperature profile, wear, volatile organic compounds (VOC), humidity, pH, microbial level, organic and inorganic material content, dirt content, flow rate and flow velocity field, or pressure in a nip. The invention also relates to a method for manufacturing a fabric for a paper or pulp technology.
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公开(公告)号:US11814793B2
公开(公告)日:2023-11-14
申请号:US17844549
申请日:2022-06-20
Applicant: Valmet Technologies Oy
Inventor: Pasi Viitasalo , Mikko Kaasalainen
CPC classification number: D21G3/005 , D21F1/02 , D21F1/523 , D21F3/0272 , D21F3/105
Abstract: An elongated planar or profiled component for a manufacturing machine of a fibrous cellulosic web, such as paper, board or tissue web, is at least partially formed from a composite material having a continuous polymer matrix, and reinforcing inorganic fibers embedded in the continuous polymer matrix. The continuous polymer matrix is biodegradable and the reinforcing inorganic fibers are biodegradable glass fibers. A method is disclosed for recycling elongated planar and/or profiled components used for manufacture of a fibrous web.
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公开(公告)号:US11801612B2
公开(公告)日:2023-10-31
申请号:US17505292
申请日:2021-10-19
Applicant: Valmet Technologies Oy
Inventor: Marko Jorkama
IPC: B26D7/27 , B26D1/24 , B65H18/14 , B65H23/195
CPC classification number: B26D1/245 , B26D7/27 , B65H18/145 , B65H23/1955 , B65H2301/4148 , B65H2513/10 , B65H2513/11
Abstract: A measuring device is releasably received within a winding core of a customer roll wound on a slitter-winder (10). The measuring device (20) is releasably fastened within the winding core by fastening element(s) (21) securing the device to the winding core (10) for rotation during winding of the fiber web around the winding core to form the customer roll. Eccentricity of the customer roll as it is wound is determined from movement, speed and/or acceleration data received from at least two sensors of the measuring device and data is stored for use in unwinding the fiber web from the customer roll and serving as control information. Tension variations in unwinding can thus be anticipated and premeditative steps taken to ensure smooth running of the fiber web in unwinding in further processing.
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公开(公告)号:US11761716B2
公开(公告)日:2023-09-19
申请号:US17051645
申请日:2019-05-09
Applicant: Valmet Technologies Oy
Inventor: Juha Ojanperä
CPC classification number: F28F9/0131 , F22B37/205 , F28D1/0475 , F28F9/26
Abstract: A heat exchanger having a first heat transfer tube with a first primary straight part and a first secondary straight part is provided. The heat exchanger includes a first primary bond part and a first secondary bond part. The first primary bond part is welded to the first secondary bond part to form a first primary bond that bonds the first primary straight part and the first secondary straight part of the first heat transfer tube. The first primary bond limits a first primary aperture and a first secondary aperture formed by the holes of the bond parts, wherein the straight parts of the first heat transfer tube extend through the first primary bond via the apertures.
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公开(公告)号:US20230250583A1
公开(公告)日:2023-08-10
申请号:US18104998
申请日:2023-02-02
Applicant: Valmet Technologies Oy
Inventor: Vesa-Matti Riihioja
IPC: D21F3/02
CPC classification number: D21F3/0236
Abstract: This invention relates to a method for manufacturing a belt for a paper, board, pulp or tissue machine, the belt (5) comprising a body (14), and a reinforcing structure (31, 32), the belt (5) having an inner surface (10) and an outer surface (11), wherein the method comprises: applying a coating comprising a solid lubricant on to a casting cylinder (18), drying the coating comprising the solid lubricant, thereby obtaining solid lubricant particles (29) on the casting cylinder (18), casting a body material (21) onto the casting cylinder (18) in order to form the body (14) on the solid lubricant particles, and providing the reinforcement structure (31, 32) into the belt, thereby obtaining the belt in which the solid lubricant particles forms at least part of the inner surface of the belt. This invention relates to an arrangement for manufacturing a belt for a paper, board, pulp or tissue machine. The invention further relates to a belt for a paper, board, pulp, or tissue machine.
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公开(公告)号:US20230191349A1
公开(公告)日:2023-06-22
申请号:US17926066
申请日:2021-06-02
Applicant: Valmet Technologies Oy , Neste Oyj
Inventor: Matti YLITALO , Teppo RIIHIMÄKI
CPC classification number: B01J6/008 , B01D53/24 , B01J8/02 , B01J19/0066 , B01J29/04 , B01J35/023 , B01J38/00 , B01J2219/00765 , B01J2219/00894
Abstract: A system for producing catalytically treated pyrolytic vapor.The system comprises a pyrolysis reactor (100) configured to produce pyrolytic vapor and a catalytic reactor (200) limiting abed area (B) into which a fluidized catalyst bed is configured to form in use. The catalytic reactor (200) comprises a static mixer (300) configured to spread the particulate catalyst within the bed area (B). Thus, the catalytic reactor (200) is configured to produce a mixture of the particulate catalyst and the catalytically treated pyrolytic vapor from the pyrolytic vapor. A method for producing catalytically treated pyrolytic vapor. The method comprises producing pyrolytic vapor and allowing at least a clean part of the pyrolytic vapor to chemically react in the presence of the particulate catalyst to produce a mixture of the particulate catalyst and catalytically treated pyrolytic vapor. The method comprises mixing, in the bed area, the pyrolytic vapor and the particulate catalyst with a static mixer.
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