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公开(公告)号：US5338366A
公开(公告)日：1994-08-16
申请号：US997711
申请日：1993-01-04
申请人： Todd S. Grace , Mark D. Barrett , Vic L. Bilodeau , Gary L. McCarty , Brian F. Greenwood , J. Robert Prough , Louis O. Torregrossa
发明人： Todd S. Grace , Mark D. Barrett , Vic L. Bilodeau , Gary L. McCarty , Brian F. Greenwood , J. Robert Prough , Louis O. Torregrossa
摘要： Biomass, such as bagasse, is pre-hydrolyzed, to ultimately effect hydrolysis of hemicellulose to sugars. Biomass is mixed with a mineral acid solution to form a slurry having a consistency of about 8 to 12% so that the acid solution properly wets the biomass. Then the slurry is dewatered to about 35 to 50% consistency, and is heated to reaction temperature (e. g. about 320.degree. F.) by direct contact with steam in the vapor phase of a vertical pressurized reactor, having a pressure of about 40 psig. A fluffer is preferably provided in the top of the reaction vessel. After a reaction time of about 30 minutes, the biomass is diluted and cold blown out of the bottom of the reactor. Pressate from the dewatering has acid added to it and is heated by indirect heat exchange with a sugar solution obtained by washing of the biomass discharged from the reactor, and is then mixed with the biomass as the acid solution.
摘要翻译： 生物质如甘蔗渣被预水解，以最终将半纤维素水解成糖。 将生物质与无机酸溶液混合以形成具有约8至12％浓度的浆料，使得酸溶液适当地润湿生物质。 然后将浆料脱水至约35％至50％的稠度，并通过与垂直加压反应器的气相中的蒸汽直接接触将其加热至反应温度（例如约320°F），压力为约40psig。 优选在反应容器的顶部设置起绒毛。 在约30分钟的反应时间后，将生物质稀释并冷却从反应器的底部吹出。 从脱水中加入酸加入，并通过与通过洗涤从反应器排出的生物质洗涤得到的糖溶液进行间接热交换加热，然后与作为酸溶液的生物质混合。
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2.发明授权Method of removing latency from medium consistency pulps by pumping the pulp 失效通过泵送纸浆从中等稠度纸浆中去除潜伏期的方法
公开(公告)号：US4596631A
公开(公告)日：1986-06-24
申请号：US608191
申请日：1984-05-08
CPC分类号： D21F1/0018 , D21D5/00
摘要： The latency of mechanical pulp is removed in a quick and simple manner. After refining of comminuted cellulosic material to produce mechanical pulp, the pulp is diluted (if necessary) to a consistency of between about 8-25%, and the pulp is then merely pumped to a further treatment stage. Pumping is effected utilizing a centrifugal pump which fluidizes the pulp, the fluidization imparting sufficient energy to the pulp to remove the latent properties. The pulp may be pumped to a storage stage prior to passage to a screening stage, and can be pumped in a direct (non-return) path from the pump to the screening stage. If desired or necessary, a portion of the pumped pulp can be recirculated and pumped again to ensure that sufficient energy is imparted thereto to effect latency removal.
摘要翻译： 机械纸浆的潜伏期以快速简单的方式去除。 在粉碎的纤维素材料精制以产生机械纸浆后，将纸浆稀释（如果需要）至约8-25％的稠度，然后将纸浆泵送到另外的处理阶段。 使用离心泵来实现泵送，该离心泵使纸浆流化，流化赋予纸浆足够的能量以去除潜在性能。 纸浆可以在通过筛选阶段之前被泵送到储存阶段，并且可以在从泵到筛选阶段的直接（非返回）路径中泵送。 如果需要或需要，一部分泵送的纸浆可以再循环并再次泵送，以确保赋予足够的能量以实现等待时间的去除。
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公开(公告)号：US4577974A
公开(公告)日：1986-03-25
申请号：US607309
申请日：1984-05-04
CPC分类号： B01F7/00908
摘要： A mixer apparatus, and procedure, for mixing medium consistency (e.g., 6-15%) paper pulp, or like fibrous suspension, minimizes the power necessary to effect fluidization, and minimizes the speed for rotation of the rotor to effect fluidization. This is accomplished by preventing the formation of a shadow behind the rotor ribs as they rotate within the mixer housing, and similarly by preventing the formation of a shadow behind the stationary ribs formed on the housing (and cooperating with the rotating ribs). Such shadows are prevented by providing one wall of each of the ribs--the trailing wall in the direction of rotation of the rotor--so that it is sloped, and fills the volume the shadow would occupy.
摘要翻译： 用于混合介质稠度（例如6-15％）纸浆或类似的纤维悬浮液的混合器装置和方法使得实现流化所需的功率最小化，并使转子的旋转速度最小化以实现流化。 这是通过防止在混合器壳体内旋转时在转子肋后面形成阴影而实现的，并且类似地通过防止在形成在壳体上的固定肋（并与旋转肋配合）之后形成阴影。 通过提供每个肋的一个壁 - 转子的旋转方向上的后壁 - 使得其倾斜，并且填充阴影将占据的体积来防止这种阴影。
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公开(公告)号：US06616384B2
公开(公告)日：2003-09-09
申请号：US10194239
申请日：2002-07-15
申请人： J. Robert Prough
发明人： J. Robert Prough
IPC分类号： B65G5308
CPC分类号： B65G53/4633
摘要： 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.
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公开(公告)号：US06468006B1
公开(公告)日：2002-10-22
申请号：US09569042
申请日：2000-05-10
申请人： J. Robert Prough
发明人： J. Robert Prough
IPC分类号： B65G5308
CPC分类号： B65G53/4633
摘要： 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.
摘要翻译： 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％。
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公开(公告)号：US06451172B1
公开(公告)日：2002-09-17
申请号：US09573390
申请日：2000-05-18
IPC分类号： D21C700
CPC分类号： D21C7/06
摘要： A drainer for a feed system for a cellulose digester has a substantially open and hollow inlet (devoid of a spiral flow imparter or a like flow restriction) and a substantially annular screen within an elongated housing having a flow direction between the housing inlet and outlet. The screen is slotted and the slots are at an angle &agr; between 5-90° with respect to the flow direction, so as to minimize passage of cellulose material through the slots, or clogging of the slots.
摘要翻译： 用于纤维素消化器的进料系统的排水器具有基本上敞开和中空的入口（没有螺旋流动力矩或类似流动限制），以及细长壳体内的基本上环形的筛网，其具有在壳体入口和出口之间的流动方向。 屏幕是开槽的，并且槽相对于流动方向处于5-90°之间的角度α，以便最小化纤维素材料通过狭槽的通道或狭槽的堵塞。
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公开(公告)号：US06280575B1
公开(公告)日：2001-08-28
申请号：US09318797
申请日：1999-05-26
IPC分类号： D21C708
CPC分类号： D21C7/08
摘要： In a cellulose pulp handling vessel having a first diameter material storing or treating portion above a second diameter discharge which is at least 20% less than the first diameter, reduced compression of the material and reduced power requirements of an agitator (if used), compared to prior art constructions are provided. A first transition, preferably a substantially smooth interior surface substantially frusto-conical transition, is provided between the first and second diameters. A second single-convergent transition may be provided above the first transition. A rotating agitator with at least two arms and associated paddles may be mounted for rotation in the transition about a substantially vertical axis for agitating the material in the transition. If desired, the transition may be moved, such as with a vibrator or oscillator. The invention is particularly suitable for pulp digesters and impregnation vessels.
摘要翻译： 在具有比第一直径小至少20％的第二直径排出口上方的第一直径材料储存或处理部分的纤维素纸浆处理容器中，材料的减小的压缩和搅拌器的功率要求（如果使用的话）被比较 提供了现有技术的结构。 在第一直径和第二直径之间提供第一过渡，优选地基本上平滑的内表面基本上截头圆锥形过渡。 可以在第一过渡之上提供第二单收敛过渡。 具有至少两个臂和相关桨叶的旋转搅拌器可以被安装成围绕基本上垂直的轴线在转变中旋转以在过渡中搅拌材料。 如果需要，可以移动转换，例如用振动器或振荡器。 本发明特别适用于纸浆消化器和浸渍容器。
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8.发明授权Method and apparatus for pulping with controlled heating to improve delignification and pulp strength 失效用控制加热制浆以提高脱木质素和纸浆强度的方法和装置
公开(公告)号：US5736006A
公开(公告)日：1998-04-07
申请号：US729022
申请日：1996-10-10
申请人： J. Robert Prough
发明人： J. Robert Prough
摘要： Low temperature steaming and slurrying of wood chips results in significant improvement in treatment, the chips being maintained at a temperature below 110.degree. C. (more desirably at about 105.degree. C. or less, and most desirably at about 100.degree. C. or less) until actually heated to cooking temperature. Steaming may be accomplished utilizing a vertical chip bin with one dimensional convergence and side relief or a horizontal steaming vessel, the steaming device connected to a high pressure feeder. A pump having an NPSHR less than the NPSHA may be used for drawing slurry into the high pressure feeder from the steaming device, or a pump may be disposed between the steaming device and the high pressure feeder for forcing slurry into the high pressure feeder through a conduit including a radiused elbow. The steaming is practiced at a pressure of 5 psig or less, preferably substantially atmospheric steaming is practiced. The pulp produced typically has strength properties at least about 10% greater than the pulp produced from material where it is steamed and slurried at temperatures in excess of 110.degree. C.
摘要翻译： 木片的低温蒸煮和浆料化处理显着改善，芯片保持在110℃以下（更优选约105℃或更低，最优选约100℃或更低） ）直到实际加热到烹调温度。 蒸汽可以利用具有一维会聚和侧面浮雕的垂直切屑仓或水平蒸汽容器来实现，蒸汽装置连接到高压进料器。 具有小于NPSHA的NPSHR的泵可以用于从蒸汽装置将浆料引入高压进料器中，或者可以在蒸汽装置和高压进料器之间设置泵，以将浆料通过一个 导管包括一个圆角的弯头。 蒸汽在5psig或更低的压力下实施，优选基本上是大气蒸汽。 生产的纸浆通常具有的强度特性比从其蒸出并在超过110℃的温度下制浆的材料产生的纸浆大至少约10％。
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9.发明授权Method and apparatus for the facilitating the servicing of drive-shaft assemblies for pressurized vessels 失效用于促进加压容器的驱动轴组件的维修的方法和装置
公开(公告)号：US5690341A
公开(公告)日：1997-11-25
申请号：US665284
申请日：1996-06-17
CPC分类号： F16J15/188
摘要： Apparatus and a method allow shaft packings and bearing assemblies to be serviced for a shaft penetrating a pressurized vessel without requiring the vessel to be emptied.
摘要翻译： 装置和方法允许轴封和轴承组件为穿透加压容器的轴而被维修，而不需要将容器排空。
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公开(公告)号：US5622598A
公开(公告)日：1997-04-22
申请号：US428302
申请日：1995-04-25
申请人： J. Robert Prough
发明人： J. Robert Prough
CPC分类号： D21C7/06
摘要： A system for feeding wood chips entrained in cooking liquor to a high pressure feeder connected to a continuous digester includes a vertical treatment (e.g. steaming) vessel, a metering device connected to the discharge from the steaming vessel, a generally vertical chip chute extending downwardly from the metering device, and a slurry pump having an inlet. The slurry pump pumps the slurry from an outlet thereof to a high pressure feeder low pressure inlet. In order to minimize the effect of changes in liquid volume upon the operation of the system, and to provide separate control of liquor volume and chip volume, a substantially vertical liquor tank having a top and bottom the bottom including a discharge opening above the slurry pump inlet is provided. A conduit directly connects the liquor tank discharge opening with the slurry pump inlet. A pressure isolating device may be used in the system if it is to operate at superatmospheric pressure rather than atmospheric pressure.
摘要翻译： 用于将夹带在蒸煮液中的木片喂入连接到连续蒸煮器的高压进料器的系统包括垂直处理（例如蒸汽）容器，连接到来自蒸煮容器的排出口的计量装置， 计量装置和具有入口的浆料泵。 浆料泵将浆料从出口泵送到高压进料器低压入口。 为了最小化液体体积变化对系统操作的影响，并且提供对液体体积和碎屑体积的单独控制，具有顶部和底部底部的基本上垂直的液体容器包括在浆料泵上方的排出口 提供入口。 导管将液罐排放口与浆料泵入口直接连接。 如果要在超大气压力而不是大气压下运行，则可以在系统中使用压力隔离装置。
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