公开(公告)号：US20140110069A1

公开(公告)日：2014-04-24

申请号：US14049275

申请日：2013-10-09

Applicant: Andritz Inc.

Inventor： Joseph Monroe RAWLS ,  Thomas PSCHORN ,  Bertil STROMBERG ,  Patrick PEPIN

IPC: D21B1/12

CPC classification number: D21C1/02 ,  D21B1/36

Abstract: An apparatus, for the steam explosion treatment of biomass, having a pressurized reactor vessel to receive a biomass material and steam, discharge lines connecting the pressurized reactor vessel to the separation device, the lines sized and positioned to allow for the steam explosion of biomass material. At the outlet end of the discharge lines is a collection-expansion manifold to connect the outlet end of each of the discharge lines to a collection line, wherein the collection line provides a passage for biomass material and steam flowing from the discharge lines. The collection line passage has a substantially larger cross-sectional area than the cross-sectional area of a single discharge line. The collection line is coupled to a separation device such that the separation device receives the biomass material and steam from the collection line.

Abstract translation: 一种用于蒸汽爆炸处理生物质的装置，具有用于接收生物质材料和蒸汽的加压反应器容器，将加压反应器容器连接到分离装置的排出管线，其尺寸和位置允许生物质材料的蒸汽爆炸 。 在排出管线的出口端是收集 - 膨胀歧管，用于将每个排出管线的出口端连接到收集管线，其中收集管线为生物质材料和从排出管线流动的蒸汽提供通道。 收集线通道具有比单个排出管线的横截面面积大得多的横截面面积。 收集线连接到分离装置，使得分离装置从收集管接收生物质材料和蒸汽。

公开(公告)号：US08685205B2

公开(公告)日：2014-04-01

申请号：US13908308

申请日：2013-06-03

Applicant: Andritz Inc.

Inventor： Walter Edward Nellis ,  Tyson Bradford Hunt ,  Richard M. Grogan

IPC: D21C11/00

CPC classification number: D21C11/0071 ,  D21C7/10

Abstract: A flash tank for concentrating fluids including a wall defining a rounded interior chamber bounded by a top elliptical head opposite to a bottom elliptical head; an inlet nozzle of the chamber; a steam chamber operatively engaged to the top elliptical head, wherein the steam chamber includes baffles and a conduit that directs condensate from the steam chamber to the level of liquid condensate; a gas discharge port operatively engaged to the steam chamber; and a liquid discharge port engaged to the bottom elliptical head below a vortex breaker. Changes to the flow passage of the steam chamber have been made by extending the baffles further into the internal chambers of the steam chamber.

Abstract translation: 用于集中流体的闪蒸罐，包括限定由与顶部椭圆形头相对的顶部椭圆形头部限定的圆形内部室的壁; 腔室的入口喷嘴; 蒸汽室可操作地接合到顶部椭圆形头部，其中蒸汽室包括挡板和将冷凝物从蒸汽室引导到液体冷凝物水平面的导管; 可操作地接合到蒸汽室的气体排出口; 以及在涡流破坏器下方接合到底部椭圆形头部的液体排出口。 已经通过将挡板进一步延伸到蒸汽室的内部室中来对蒸汽室的流动通道进行改变。

公开(公告)号：US20140069876A1

公开(公告)日：2014-03-13

申请号：US13964618

申请日：2013-08-12

Applicant: ANDRITZ INC.

Inventor： Todd GRACE

IPC: B01D33/21 ,  B01D33/46

CPC classification number: B01D33/215 ,  B01D33/21 ,  B01D33/23 ,  B01D33/466 ,  B01D33/76

Abstract: The adaptation of a rotary drum filter structure to a accommodate filter discs within the existing rotary drum filter structure while using the existing rotary drum structure foundation, piping, etc. to allow a filter disc operation.

Abstract translation: 旋转鼓过滤器结构适应现有旋转鼓过滤器结构内的过滤盘，同时使用现有的旋转鼓结构基础，管道等来允许过滤盘操作。

公开(公告)号：US20130270377A1

公开(公告)日：2013-10-17

申请号：US13849267

申请日：2013-03-22

Applicant: ANDRITZ INC.

Inventor： Luc GINGRAS

IPC: D21B1/26

CPC classification number: D21B1/26 ,  B02C7/06 ,  D21D1/30 ,  D21D1/306

Abstract: A system for refining lignocellulosic material including a first stator plate segment refining zone and a first rotor place segment refining zone, each of which has grooves. The rotor plate groove width is larger than the stator plate groove width in the inner part of the refining zone, but substantially similar in the outer part of the refining zone.

Abstract translation: 一种用于精炼木质纤维素材料的系统，包括第一定子板段精炼区和第一转子位置段精炼区，每个具有凹槽。 转子板槽宽度大于精炼区内部的定子板槽宽度，但在精炼区的外部部分基本相似。

公开(公告)号：US20040026051A1

公开(公告)日：2004-02-12

申请号：US10633536

申请日：2003-08-05

Applicant: ANDRITZ INC.

Inventor： C. Bertil Stromberg

IPC: D21C009/12 ,  D21C009/14 ,  D21C009/153 ,  D21C003/20 ,  D21C009/16

CPC classification number: D21C9/1057 ,  D21C3/222 ,  D21C9/144 ,  D21C9/147 ,  D21C9/153 ,  D21C9/163

Abstract: An environmentally friendly (ECF), yet commercially viable, process produces fully bleached (typically having a brightness of over 89 or 90% ISO) cellulose pulp using a (ZEND) treatment. Typically pulp is produced in an essentially sulphur-free pulping process (such as an soda/AQ process), and is then treated by a D-EO-, D-EP-, or D-EOP-sequence before the (ZEND) treatment. Optional oxygen delignification may also be used, and subsequent elemental-chlorine-free bleaching sequences may also be employed, although normally not necessary since the pulp after the (ZEND) treatment has high brightness and good viscosity (e.g. over 21 cP).

Abstract translation: 环保（ECF），但商业上可行的方法使用（ZEND）处理产生完全漂白（通常具有超过89或90％ISO的亮度）纤维素纸浆。 通常，纸浆以基本上不含硫的制浆方法（例如苏打/ AQ方法）生产，然后在（ZEND）处理之前用D-EO-，D-EP-或D-EOP-序列处理 。 也可以使用任选的氧脱木素，并且也可以使用随后的无元素 - 氯的漂白顺序，尽管通常不需要，因为（ZEND）处理后的纸浆具有高亮度和良好的粘度（例如超过21cP）。

公开(公告)号：US20030113171A1

公开(公告)日：2003-06-19

申请号：US10356623

申请日：2003-02-03

Applicant: Andritz, Inc.

Inventor： J. Robert Prough

IPC: B65G053/08

CPC classification number: B65G53/4633

Abstract: A high pressure transfer device has a rotor mounted in a housing for rotation with respect to inlet and outlet ports and having through going pockets. The pockets have interior surface configurations substantially devoid of nooks, crannies, and related flow restrictions. This can be accomplished by providing inserts in the pockets, or by constructing the pockets so that there are substantially smooth interior wall tubes extending from one end of the rotor and the other and cooperating with an inlet and an outlet at the same time. Using the high pressure transfer device to feed wood chips or the like in a slurry using a high pressure transfer pump can result in flow through the rotor pockets that is more uniform by at least 5% compared to in conventional high pressure transfer devices.

公开(公告)号：US20030089470A1

公开(公告)日：2003-05-15

申请号：US10321550

申请日：2002-12-18

Applicant: Andritz Inc.

Inventor： Auvo K. Kettunen ,  Richard O. Laakso ,  C. Bertil Stromberg ,  J. Robert Prough ,  Jay J. Miele

IPC: D21C003/26 ,  D21C007/06 ,  D21C007/08 ,  D21C007/12

CPC classification number: D21C7/06

Abstract: In the feeding of a slurry of comminuted cellulosic fibrous material to a digester (continuous or batch) in the production of chemical pulp, one of the tanks used in the feed system (which preferably includes a high pressure feeder) may be eliminated without consequent loss of its function by providing a single tank with the combined functions of controlling the level of liquid in a slurrying conduit which supplies slurry to a slurry pump, and storing and substantially continuously supplying liquid to a make-up liquid pump connected to the digester. The single tank preferably surrounds the slurrying conduit and is substantially concentric, and in liquid communication, with it. A gap of 3-48 inches may be provided between the bottom of the conduit and a connection to the slurry pump. A screen or strainer may be provided in the gap, which is substantially surrounded by the tank. The return system from the low pressure outlet of the high pressure feeder to the slurrying device (like the conduit and tank surrounding it, or a conventional clip tube) may be devoid of one or more of an in-line drainer, level tank, centrifugal separator, and surge tank.

公开(公告)号：US20240295075A1

公开(公告)日：2024-09-05

申请号：US18409748

申请日：2024-01-10

Applicant: ANDRITZ INC.

Inventor： Luc Gingras

IPC: D21D1/28

CPC classification number: D21D1/28

Abstract: A refiner plate includes at least one refining zone including a first plurality of refining bars and a plurality of grooves. At least one groove of the plurality of grooves has a first width between adjacent refining bars of the first plurality of refining bars at an inlet of the at least one refining zone narrower than a second width along a remaining portion of the at least one groove. At least one of the adjacent refining bars of the first plurality of refining bars has a widened portion in a circumferential direction of the refiner plate at an inlet portion of the at least one refining zone.

公开(公告)号：US20240272629A1

公开(公告)日：2024-08-15

申请号：US18637074

申请日：2024-04-16

Applicant: Andritz Inc.

Inventor： Neeraj Nagpal ,  Peter Antensteiner

IPC: G05B19/418

CPC classification number: G05B19/41875 ,  G05B2219/32201 ,  G05B2219/32368

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for optimizing material processing. In one aspect, a method includes collecting, from a set of sensors, a set of current manufacturing conditions. Based on the set of current manufacturing conditions collected from the sensors, a set of current qualities of a material currently being processed by manufacturing equipment is determined. A baseline production measure for processing the material according to the set of current qualities is obtained. A candidate set of manufacturing conditions that provide an improved production measure relative to the baseline production measure is determined. A set of candidate qualities for the material produced under the candidate set of manufacturing conditions is determined. A visualization that presents both of the set of candidate qualities of the material and the set of current qualities of the material currently being processed is generated.

公开(公告)号：US20240011221A9

公开(公告)日：2024-01-11

申请号：US17451661

申请日：2021-10-21

Applicant: ANDRITZ INC.

Inventor： Luc Gingras

IPC: D21C5/02

CPC classification number: D21C5/025

Abstract: A plate segment includes a substrate having a front side and a back side, wherein the back side is configured to be mounted to a support disc of a disperser; rows of teeth protruding from the front side of the substrate, wherein each of the rows are arranged along an arc extending from one side of the plate segment to an opposite side of the plate segment. In at least one of the rows of teeth, adjacent teeth are joined by a bridge spanning a gap between the adjacent teeth. The bridge is elevated above the front side of the substrate such that the bridge is separated from the front side by an open space in the gap.