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51. 发明授权

US06174411B1 Continuous digester with inverted top separator 有权
标题翻译：连续消化器，倒置顶部分离器
公开(公告)号：US06174411B1
公开(公告)日：2001-01-16
申请号：US09192578
申请日：1998-11-17
申请人： Richard Laakso , C. Bertil Stromberg , Kaj O. Henricson
发明人： Richard Laakso , C. Bertil Stromberg , Kaj O. Henricson
IPC分类号： D21C700
CPC分类号： D21C7/06 , D21C3/24
摘要： A cellulose pulp continuous digester (e.g. for producing kraft pulp) is operated so that it has an inverted top separator and is hydraulically filled to above the level of the inverted top separator, and may be substantially completely hydraulically full. A plurality of different liquor flows may be extracted from the inverted top separator, and an in-line drainer may be provided in a conduit through which liquid is extracted.
摘要翻译：操作纤维素纸浆连续蒸煮器（例如用于生产牛皮纸浆）的操作使得其具有倒置的顶部分离器，并且液压填充到反向顶部分离器的水平面之上，并且可以基本上完全液压地充满。可以从倒置的顶部分离器中提取多个不同的液流，并且可以在导管中设置在线的排水器，通过该导管抽出液体。

52. 发明授权

US5985096A Vertical pulping digester having substantially constant diameter 失效
标题翻译：立式制浆蒸煮器具有基本恒定的直径
公开(公告)号：US5985096A
公开(公告)日：1999-11-16
申请号：US936047
申请日：1997-09-23
申请人： Bruno S. Marcoccia , J. Robert Prough , Jerry R. Johanson , C. Bertil Stromberg , Joseph R. Phillips
发明人： Bruno S. Marcoccia , J. Robert Prough , Jerry R. Johanson , C. Bertil Stromberg , Joseph R. Phillips
IPC分类号： D21C7/00
CPC分类号： D21C7/00
摘要： In a vertical digester for producing chemical pulp, or other vessel for treating a slurry of comminuted fibrous cellulosic material, the cost of manufacturing the shell is significantly reduced by eliminating the external step increases in the digester shell. The digester shell has a substantially constant internal diameter from just below the inlet to just above the outlet, screen assemblies being provided by an internal transition (e.g. conical) having an angle of convergence of less than 40.degree. (e.g. about 10-25.degree.) above each screen assembly so that the slurry flows through the transition without bridging or hang-up, and a step increase, or other increase, in diameter back to the first diameter after the screen assembly.
摘要翻译：在用于生产化学纸浆的立式蒸煮器或用于处理粉碎的纤维状纤维素材料的浆料的其它容器中，通过消除蒸煮器壳体的外部步骤增加，制造壳体的成本显着降低。蒸煮器壳体具有从入口正下方到出口正上方的基本上恒定的内径，筛网组件由倾斜角小于40°（例如约10-25°）的内部过渡（例如圆锥形）提供，在每个筛网组件之上，使得浆料流过过渡而不会桥接或挂起，并且在筛网组装之后，直径逐渐增加或者增加到第一直径。

53. 发明授权

US5813758A Concentric ring fluidizing mixer 失效
标题翻译：同心环流化搅拌机
公开(公告)号：US5813758A
公开(公告)日：1998-09-29
申请号：US164889
申请日：1993-12-10
申请人： Thomas R. Delcourt , Johan Gullichsen , Ronald G. Bain , C. Bertil Stromberg
发明人： Thomas R. Delcourt , Johan Gullichsen , Ronald G. Bain , C. Bertil Stromberg
IPC分类号： B01F5/00 , B01F7/00 , B01F5/04
CPC分类号： B01F7/008 , B01F7/00191 , B01F7/00833 , B01F2005/0008
摘要： A mixer, having a unique rotor, is particularly suitable for mixing paper pulp having a consistency of about 6-15% (medium consistency) with a bleaching gas having an ozone content of at least one percent, and typically at least six percent. The rotor comprises a disc shaped base, a hub at the center of the base for connecting it to a drive mechanism for driving the rotor at an angular velocity of 1000-6000 rpm, and one or more rings concentric with the base and extending outwardly from the base at least about three inches (and of the same for different heights). A number of blades may extend radially through the center of the base along the contour of the rings, extending outwardly from the base, rings, and hub. Degassing holes may be formed in the hub and connected up to a suitable degassing structure in the mixer. The rings may have a cross-sectional shape corresponding to that of a truncated right circular cone frustum, or may have a rectangular cross-section. The rotor is mounted in a housing having a pulp inlet and outlet, and the stator has complimentary shaped cooperating surfaces with the rotor defining annular mixing volumes, the cooperating surfaces having a spacing of 0.5 inches or less (preferably 0.25 inches or less). The fluid to be mixed with the pulp is introduced into the inlet adjacent the rotor and into the mixing volumes, for example at the extremity of the rings from the base.
摘要翻译：具有独特转子的混合器特别适用于混合具有约6-15％（中等稠度）稠度的纸浆与臭氧含量至少为1％，通常至少6％的漂白气体。转子包括盘形基座，位于基座中心的轮毂，用于将其连接到用于以1000-6000rpm的角速度驱动转子的驱动机构，以及一个或多个与基座同心并且从底部向外延伸的环基座至少约三英寸（对于不同的高度也是相同的）。许多叶片可以沿着环的轮廓径向延伸穿过基部的中心，从基部，环和轮毂向外延伸。脱气孔可以在轮毂中形成并且在混合器中连接到合适的脱气结构。环可以具有对应于截头圆锥形截头锥体的横截面形状，或者可以具有矩形横截面。转子安装在具有纸浆入口和出口的壳体中，并且定子具有互补的成形配合表面，转子限定环形混合体积，配合表面具有0.5英寸或更小（优选0.25英寸或更小）的间距。要与纸浆混合的流体被引入到与转子相邻的入口中，并被引入到混合体积中，例如在环的离开底部的末端。

54. 发明授权

US5795438A Method and apparatus for feeding multiple digesters 失效
标题翻译：多种消化池供料方法及装置
公开(公告)号：US5795438A
公开(公告)日：1998-08-18
申请号：US744857
申请日：1996-11-04
申请人： C. Bertil Stromberg , Bruno S. Marcoccia , J. Wayne Chamblee
发明人： C. Bertil Stromberg , Bruno S. Marcoccia , J. Wayne Chamblee
IPC分类号： D21C7/06
CPC分类号： D21C7/06
摘要： A number of distinct parallel digesters are fed with chips from a common steaming vessel. After steaming the chips are slurried and pressurized, and substantially simultaneously the steamed, slurried, and pressurized chips are transferred to at least some of (and typically each of) the distinct parallel digesters. A material stream is split into a number of individually controllable material streams (one for each of the digesters) either at the discharge from the steaming vessel, after slurrying (or at the discharge from a slurrying vessel), or after pressurizing (e.g. in a high pressure transfer device). For example a multi-branch conduit may be connected to the slurry outlet from the high pressure transfer device, the conduit having a branch directly connected to each of the digesters. A distinct return conduit may also be provided from each of the digesters to the high pressure transfer device, each return conduit preferably has a distinct flow control device and/or pump which are individually controlled.
摘要翻译：许多独特的平行蒸煮器由普通的蒸汽容器供给碎屑。在蒸汽之后，碎片被浆化和加压，并且基本上同时将蒸出的，浆化的和加压的碎屑转移到不同的平行蒸煮器的至少一些（并且典型地每个）。物料流在从蒸汽容器排出之后，在浆料化（或从浆浆容器排出）之后或在加压之后（例如在一个或多个蒸发器中）分离成多个可单独控制的材料流（每个消化器一个）高压输送装置）。例如，多分支导管可以连接到来自高压输送装置的浆料出口，导管具有直接连接到每个消化器的分支。也可以从每个消化器到高压输送装置提供独特的返回导管，每个返回管道优选地具有单独控制的不同的流量控制装置和/或泵。

55. 发明授权

US5753075A Method and system for feeding comminuted fibrous material 失效
标题翻译：喂粉碎纤维材料的方法和系统
公开(公告)号：US5753075A
公开(公告)日：1998-05-19
申请号：US738239
申请日：1996-10-25
申请人： C. Bertil Stromberg , J. Wayne Chamblee , Bruno S. Marcoccia , Rolf C. Ryham , Erwin D. Funk
发明人： C. Bertil Stromberg , J. Wayne Chamblee , Bruno S. Marcoccia , Rolf C. Ryham , Erwin D. Funk
IPC分类号： B60W40/076 , D21C1/10 , D21C7/06
CPC分类号： D21C7/06 , D21C1/10
摘要： 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 one or more slurry pumps 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. A return line from the top of the digester may, but need not necessarily, be operatively connected to the one or more pumps and if connected to the pumps the pressure in the return line may be reduced utilizing a pressure reduction valve and/or a flash tank. Steam from the flash tank may be used in steaming the chips. Pressure relief prevention may be provided by isolation valves in the lines leading to and from the top of the treatment vessel controlled by a controller which is responsive to the pressure sensed in the slurry line leading to the top of the treatment vessel.
摘要翻译：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，使用位于处理容器顶部至少三十英尺处的一个或多个浆料泵来加压蒸汽和浆化的碎屑，并将浆料加压至至少约10巴的压力。来自蒸煮器顶部的返回管线可以但不一定可操作地连接到一个或多个泵，并且如果连接到泵，则可以使用减压阀和/或闪光灯来减少返回管路中的压力坦克。来自闪蒸罐的蒸汽可用于蒸制芯片。通过控制器控制的通向和离开处理容器顶部的管线可以通过隔离阀来提供防泄压，该控制器响应于通向处理容器顶部的浆液管线中感测到的压力。

56. 发明授权

US5401361A Completely coutercurrent cook continuous digester 失效
标题翻译：完全辅助循环煮连续蒸煮
公开(公告)号：US5401361A
公开(公告)日：1995-03-28
申请号：US963492
申请日：1992-10-20
申请人： J. Robert Prough , C. Bertil Stromberg , Richard O. Laakso , Bruno S. Marcoccia
发明人： J. Robert Prough , C. Bertil Stromberg , Richard O. Laakso , Bruno S. Marcoccia
IPC分类号： D21C3/24 , D21C7/00 , D21C11/00
CPC分类号： D21C3/24 , D21C11/0021 , D21C7/00
摘要： A conventional continuous digester is modified so as to provide a countercurrent cook throughout the entire height of the digester. Instead of connecting an upper mid-point extraction screen to a flash tank, that screen is closed off and extraction is provided at the top of the digester, utilizing an in-line drainer to remove some of the liquor and feed it to a flash tank. The liquor not removed recirculates through a pressure screen to an impregnation vessel, and then back to the digester. A cooling circulation is provided just below the top extraction. Valves are provided in the liquor discharged from the drainer and a conduit from the upper mid-point extraction which may be manipulated to return the digester to conventional operation, including the addition of white liquor to the bottom recirculation.
摘要翻译：常规的连续蒸煮器被修改为在蒸煮器的整个高度上提供逆流烹饪。代替将上部中点提取屏幕连接到闪光罐，该屏幕被关闭并且在蒸煮器的顶部提供提取，利用在线排水器去除一些液体并将其送入闪蒸罐。未除去的液体通过压力筛网再循环到浸渍容器中，然后返回到蒸煮器。在顶部提取物的正下方提供冷却循环。在从排水器排出的液体中提供阀和来自上中点萃取的管道，其可以被操作以将蒸煮器返回到常规操作，包括向底部再循环中加入白液。

57. 发明授权

US4927312A Chip gates with air lock 失效
标题翻译：带气锁的芯片门
公开(公告)号：US4927312A
公开(公告)日：1990-05-22
申请号：US195890
申请日：1988-05-19
申请人： Michael D. Meredith , Joseph R. Phillips , Richard O. Laakso , C. Bertil Stromberg
发明人： Michael D. Meredith , Joseph R. Phillips , Richard O. Laakso , C. Bertil Stromberg
IPC分类号： B65D90/62 , D21B1/02 , D21C7/06
CPC分类号： B65D90/623 , D21B1/021 , D21C7/06
摘要： Chip gates are provided adjacent the lower end of an inlet chute to a presteaming vessel for a digester in a pulp production system. The chip gates are operated to maintain a level of chips within the inlet chute sufficient such that the chips preclude egress of noxious odorous gas from the presteaming vessel, while simulataneously the chips are discharged into the vessel.
摘要翻译：芯片浇口邻近入口槽的下端设置到纸浆生产系统中用于蒸煮器的预蒸发容器。操作芯片闸门以保持入口槽中的芯片水平足够，使得芯片排除来自预蒸发容器的有害恶臭气体的排出，同时将芯片排放到容器中。

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