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公开(公告)号：US20180180284A1
公开(公告)日：2018-06-28
申请号：US15832400
申请日：2017-12-05
Applicant: Valmet Technologies Oy
Inventor： Jussi Nyman , Taisto Rajala , Ari Saarela
CPC classification number: F23J15/003 , D21C11/12 , F22B21/40 , F22B31/045 , F22G3/006 , F22G7/14
Abstract: A chemical recovery boiler (100), including a furnace (1), comprising a front wall (2), a back wall (3), and the back wall (3) comprising a nose arch (4). The boiler further comprises at least one superheater (5) arranged in upper part of the furnace (1), and a screen pipe system (6), comprising an obliquely arranged screen pipe section (7) positioned before/under the at least one superheater (5) in the furnace (1). The obliquely arranged screen pipe section (7) comprises screen pipes (8) ascending (i) either from the front wall (2) to the back wall (3), and arranged to turn back in a turn (13) from the back wall (3) and extend obliquely upwards from the back wall (3), or (ii) from the back wall (3) to the front wall (2), and arranged to turn back in a turn (13) from the front wall (2) and extend obliquely upwards from the front wall (2). The screen pipe system (6) further comprises a vertically arranged screen pipe section (9) extending from the obliquely arranged screen pipe section (7). The screen pipes (8) of the vertically arranged screen pipe section (9) are arranged to extend parallel with the at least one superheater (5) in upper part of the furnace (1).
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公开(公告)号：US09920476B2
公开(公告)日：2018-03-20
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).
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公开(公告)号：US09828726B2
公开(公告)日：2017-11-28
申请号：US14912730
申请日：2014-08-08
Applicant: Valmet Technologies Oy
Inventor： Seppo Hiljanen
CPC classification number: D21C11/0007 , C01B32/00 , C01B32/05 , C07G1/00 , Y02E50/14
Abstract: The invention provides a method and a system for separating lignin from a lignin containing liquid medium, such as pulp mill black liquor, and treating the separated lignin. The method comprises at least the following steps: a) a precipitation stage (1), wherein a pH lowering agent (A) is added to the lignin containing slurry for precipitating lignin, b) followed by a first separation stage (2), wherein the precipitated lignin is separated as a lignin cake from the remaining liquid phase of the lignin containing slurry, c) a suspending stage (3), wherein the lignin cake is suspended for obtaining a lignin suspension, d) a hydrothermal carbonization stage (4), wherein the lignin suspension is treated for obtaining a slurry of carbon containing material, and e) a second separation stage (5), wherein the carbon containing material is separated from the slurry.
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公开(公告)号：US20170275823A1
公开(公告)日：2017-09-28
申请号：US15511062
申请日：2016-03-18
Applicant: Valmet Technologies Oy
Inventor： Rauno Enqvist , Aira Liitola
IPC: D21F1/00
CPC classification number: D21F1/0036 , D21F1/0054
Abstract: The invention relates to a dryer fabric, which is woven of machine direction yarns (2) and cross machine direction yarns (3). The machine direction yarns (2) have free long float above at least seven cross machine yarns on a paper side (P) of the dryer fabric (1). Further, the fabric has double cloth structure having machine direction yarns in two successive layers (2a, 2b).
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公开(公告)号：US20170183572A1
公开(公告)日：2017-06-29
申请号：US15378837
申请日：2016-12-14
Applicant: Valmet Technologies Oy
Inventor： Teppo Riihimaeki , Antti Kaura , Lauri Kokko , Joakim Autio
CPC classification number: C10G31/09 , B01D29/0095 , B01D29/0097 , B01D29/114 , B01D29/117 , B01D29/118 , B01D29/56 , B01D2201/184 , C10G2300/208
Abstract: A filter for filtering pyrolysis oil and an arrangement. The filter is a split-flow filter (1, 1a, 1b), comprising a filter element (12), comprising plurality of apertures (17) extending through the filter element (12), a receiving channel (13) for receiving a flow (F) of pyrolysis oil to be filtered and for supplying said flow on first side (A) of the filter element (12), a main discharge channel (14) arranged on the first side (A) of the filter element (12) for discharging the portion of the flow (F) of pyrolysis oil having not penetrated through the filter element (12), and a filtrate channel (15) arranged on second side (B) of the filter element (12) for discharging the portion of the flow (F) of pyrolysis oil having penetrated through the filter element (12).
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Patent Agency Ranking
公开(公告)号：US20160376117A1
公开(公告)日：2016-12-29
申请号：US15193248
申请日：2016-06-27
Applicant: Valmet Technologies Oy
Inventor： Sami Hyötynen , Timo Hämäläinen , Vesa Riihelä , Risto Mäkinen
CPC classification number: B65H19/2253 , B65H18/20 , B65H2301/41361 , B65H2301/414
Abstract: A reel-up for reeling of a fiber web (W) around a reel spool (15B) to form a parent roll (20B; 20A) by use of a reeling nip (N) between a reeling cylinder (10) of the reel-up and the parent roll (20B) under reeling, has a primary reeling position and a secondary reeling position. The reel-up (10) has the reeling cylinder (10), substantially horizontal guides (14) and for each end of the reel spool (15A; 15B), loading arms (12,13; 16,17) and carriages (18) and the primary reeling position is fixed.
Abstract translation: 卷绕卷绕卷轴（15B）的纤维幅材（W）的卷取机，以通过使用卷轴辊筒（10）的卷取辊筒（10）之间的卷取辊隙（N）形成母辊（20B; 20A） 并且在卷取下的母辊（20B）具有初始卷取位置和次要卷取位置。 卷轴（10）具有卷取筒（10），基本上水平的引导件（14），并且对于卷轴（15A; 15B）的每个端部，装载臂（12,13; 16,17）和托架（18 ）并且主卷轴位置是固定的。
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公开(公告)号：US20160097528A1
公开(公告)日：2016-04-07
申请号：US14870628
申请日：2015-09-30
Applicant: Valmet Technologies Oy
Inventor： Jussi Nyman , Kari Haaga , Taisto Rajala
IPC: F22B1/18
CPC classification number: F22B1/1892 , D21C11/12
Abstract: An arrangement and a method in a soda recovery boiler. The soda recovery boiler comprises a second pass which is provided with at least one superheater and a second pass ash hopper, a front and/or rear wall of the ash hopper being connected to steam circulation of the soda recovery boiler.
Abstract translation: 在苏打水回收锅炉中的布置和方法。 苏打水回收锅炉包括设置有至少一个过热器和第二通过灰斗的第二通道，灰斗的前壁和/或后壁连接到苏打水回收锅炉的蒸汽循环。
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公开(公告)号：US20250059708A1
公开(公告)日：2025-02-20
申请号：US18719716
申请日：2023-01-05
Applicant: Valmet Technologies Oy
Inventor： Juha Aronen , Pekka Saukko
Abstract: A loading device (10) is used to adjust the size of a blade gap (9) in processing equipment for processing fibrous material. The loading device has a gearing (12) coupled in connection with a processing element (5, 6) to move the processing element (5, 6) in respect of another processing element (5, 6) for adjusting the size of the blade gap (9) between the processing elements. A cage induction motor (14) has a shaft (15) coupled to the gearing for operating the gearing, a position sensor (16) for measuring a rotational position (M-RP) of the shaft of the motor for indicating a position of the processing element in respect of the another processing element, and a frequency converter (17) coupled to the position sensor and to the motor for controlling the operation of the motor based on the measured rotational position of the shaft of the motor.
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公开(公告)号：US12123137B2
公开(公告)日：2024-10-22
申请号：US17754850
申请日：2020-11-06
Applicant: VALMET TECHNOLOGIES OY
Inventor： Tero Joronen
CPC classification number: D21C11/0007 , C01D3/00 , C10G1/002 , C10G1/045 , C10G1/086 , D21C11/0042 , D21C11/0071 , D21C11/0078 , C10G2300/202 , C10G2300/4006 , C10G2300/4012 , C10G2300/70 , C10G2300/805
Abstract: The invention relates to a method for producing an oil rich fraction (OF) from primary feedstock (FS) that comprises water, first salt, second salt, and biomass. The feedstock (FS) is provided to a first reaction zone (Z1) of a conversion reactor (100), where it is allowed to react at a temperature of at least 350° C. in a pressure of at least 160 bar to form converted primary feedstock. The method comprises separating from the converted primary feedstock a first salt rich fraction (SF1), a second salt rich fraction (SF2), and an oil rich fraction (OF). The method comprises withdrawing the oil rich fraction (OF) from the first reaction zone (Z1) and withdrawing the first salt rich fraction (SF1) and the second salt rich fraction (SF2) from the conversion reactor (100). In the method the first salt rich fraction (SF1) comprises at least some of the first salt dissolved in the water, the second salt rich fraction (SF2) comprises at least some of the second salt in solid form, and at least one of the first salt and the second salt is a salt capable of catalysing the reaction of the biomass of the primary feedstock (FS) with the water of the primary feedstock (FS) to produce the oil rich fraction (OF). A device for the same.
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公开(公告)号：US12091171B2
公开(公告)日：2024-09-17
申请号：US17751347
申请日：2022-05-23
Applicant: Valmet Technologies Oy
Inventor： Paul Arnold
CPC classification number: B64C39/024 , B64C1/08 , B64D47/08 , B64U10/10 , B64U50/19 , B64U2101/00
Abstract: An unmanned aerial vehicle (UAV) has a multicopter section for flying in air with an attached blower section for generating an air stream for blowing dust off surfaces. A flight controller controls the multicopter section, a blower controller controls the blower section, and a power supply supplies power to the multicopter and blower sections. The flight controller and the blower controller are connected, and the blower controller is adapted to supply blower control commands to the flight controller to compensate for the thrust of the air stream from the blower section by flight control of the multicopter section. The UAV may be enclosed by a protective cage in the form of a meshed polyhedron, wherein the rods of the meshes are elastically connected at the respective nodes.
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