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公开(公告)号：US09976739B2
公开(公告)日：2018-05-22
申请号：US14442378
申请日：2013-11-07
Applicant: Valmet Technologies Oy
Inventor： Vesa Kainu , Jukka-Pekka Leppälä
Abstract: An air nozzle arrangement for a fluidized bed boiler, comprising an air feed pipe and an air nozzle which limit an air feed duct configured to supply air to the furnace of the fluidized bed boiler. The air nozzle arrangement comprises a surface configured to guide coarse material along said surface. At least part of said surface is thermally insulated from the air nozzle and/or the air feed pipe. Furthermore, at least part of said surface is configured to protect at least part of said air nozzle and/or air feed pipe. Thus, the temperature of said surface is configured to be high when the fluidized bed boiler is in operation, whereby the solidification of molten material of the fluidized bed in the air nozzle arrangement is reduced.
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32.发明申请公开(公告)号：US20160245599A2
公开(公告)日：2016-08-25
申请号：US14649542
申请日：2013-11-25
Applicant: Valmet Technologies Oy
Inventor： Joni Maunula
CPC classification number: F28G15/003 , F23J3/023 , F23M11/042 , G01B11/0616 , G01B11/0625
Abstract: An arrangement of a thermal device and a surface reflecting and/or scattering electromagnetic radiation in the inner part of the thermal device. A source of electromagnetic radiation is arranged at a first distance (L1) from the surface, and a detector of electromagnetic radiation is arranged at a second distance (L2) from the surface. The source is configured to emit radiation to the surface, which is reflected and/or scattered from the surface as reflected radiation. The detector receives reflected radiation; and the processing unit determines data dependent on the first and/or second distance by the emitted and reflected radiation. A wall of the thermal device has a window or aperture for emitting an optical signal from the light source to the surface. An electromagnetic distance measurement device measures the thickness or the increase in the thickness of a contamination layer from a thermal device.
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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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公开(公告)号：US12281439B2
公开(公告)日：2025-04-22
申请号：US18008625
申请日：2021-06-03
Applicant: Valmet Technologies Oy
Inventor： Marko Loijas , Tomi Iisakkila
IPC: D21D1/30
Abstract: A blade segment (4, 8) for a refiner (1) for refining fibrous material has a first (20) and a second (21) end edge and a first (22) and a second (23) side edge opposite to the first side edge (22) and a refining surface (5, 9) having blade bars (27, 27a, 27b) and grooves (28, 28a, 28b) therebetween on a front surface (25). At least one opening (14, 15) is on at least at one side edge (22, 23) which extends through the whole thickness of the blade segment body (24). There is at least one feed groove (29) on the refining surface, the feed groove (29) extending from the opening and crossing the blade bars and the blade grooves for feeding the material to be refined across the refining surface. The blade bars (27, 27a, 27b) of the blade segment are interlaced at the feed groove.
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Patent Agency Ranking
36.发明授权公开(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.-
37.发明公开公开(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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38.发明授权公开(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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