公开(公告)号：US20020176752A1

公开(公告)日：2002-11-28

申请号：US10194239

申请日：2002-07-15

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.

Abstract translation: 高压传送装置具有安装在壳体中的转子，用于相对于入口和出口旋转并具有穿过口袋。 这些口袋具有基本上没有角落，颅骨和相关流动限制的内表面配置。 这可以通过在袋中提供插入物，或者通过构造袋来实现，使得从转子的一端延伸的基本平滑的内壁管和另一端并且同时与入口和出口配合。 使用高压转移装置使用高压输送泵将木屑等进料到浆料中可以导致与传统的高压转移装置相比更均匀的流过转子袋的至少5％。

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：US20030215293A1

公开(公告)日：2003-11-20

申请号：US10438850

申请日：2003-05-16

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：US20030173047A1

公开(公告)日：2003-09-18

申请号：US10354179

申请日：2003-01-30

Applicant: Andritz, Inc.

Inventor： C. Bertil Stromberg ,  Aaron T. Leavitt ,  J. Robert Prough

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

CPC classification number: D21C1/10 ,  D21C7/06

Abstract: A system and method for feeding comminuted cellulosic fibrous material such as wood chips to the top of a treatment vessel such as a continuous digester provide enhanced simplicity, operability, and maintainability by eliminating the high pressure transfer device conventionally used in the prior art. Instead of a high pressure transfer device the steamed and slurried chips are pressurized using a single vane slurry pump in series with a centrifugal slurry pump both of which are located at least thirty feet below the top of the treatment vessel and for pressurizing the slurry to a pressure of at least about 10 bar gauge.

Abstract translation: 将诸如木屑的粉碎的纤维素纤维材料进料到诸如连续蒸煮器的处理容器的顶部的系统和方法通过消除现有技术中常规使用的高压转移装置提供了增强的简单性，可操作性和可维护性。 代替高压转移装置，使用与离心式浆液泵串联的单一叶片浆料泵来加压蒸出和制浆的碎屑，两者均位于处理容器顶部至少三十英尺处，并将浆料加压至 至少约10巴表压的压力。

公开(公告)号：US20030089469A1

公开(公告)日：2003-05-15

申请号：US10321439

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 ,  D21C007/14

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：US20030089467A1

公开(公告)日：2003-05-15

申请号：US10321428

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 ,  D21C007/14 ,  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：US20030089466A1

公开(公告)日：2003-05-15

申请号：US10321424

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: D21C001/10 ,  D21C003/26 ,  D21C007/06 ,  D21C007/08

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：US20030231933A1

公开(公告)日：2003-12-18

申请号：US10438878

申请日：2003-05-16

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：US20030089468A1

公开(公告)日：2003-05-15

申请号：US10321436

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

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.