公开(公告)号：WO1990011170A1

公开(公告)日：1990-10-04

申请号：PCT/US1990001505

申请日：1990-03-20

Applicant: WEYERHAEUSER COMPANY

Inventor： WEYERHAEUSER COMPANY ,  NEOGI, Amar, N. ,  YOUNG, Richard, H., Sr.

IPC: B27K03/00

CPC classification number: D04H1/4382 ,  A61F13/511 ,  A61F13/531 ,  A61F2013/530007 ,  A61F2013/530131 ,  A61F2013/530343 ,  A61F2013/530496 ,  A61F2013/530569 ,  A61F2013/530583 ,  A61F2013/5395 ,  D04H1/407 ,  D04H1/413 ,  D04H1/425 ,  D06M11/46 ,  D06M11/74 ,  D21H17/48

Abstract: Discontinuous natural fibers have a coating of a thermoset binder. A substantial majority of the fibers, and any fiber bundles in the fibers, are unbonded to one another by the thermoset binder material. One or more solid particulate materials may be adhered to the fibers by the binder material as the binder material dries. The binder material is heat curable and the coated fibers can be mixed with other fibers for subsequent heat curing and used in producing a wide variety of products.

Abstract translation: 不连续的天然纤维具有热固性粘合剂的涂层。 大部分纤维和纤维中的任何纤维束通过热固性粘合剂材料彼此无粘结。 当粘合剂材料干燥时，一种或多种固体颗粒材料可以通过粘合剂材料粘附到纤维上。 粘合剂材料是可热固化的，并且涂覆的纤维可以与其它纤维混合以用于随后的热固化并用于生产各种各样的产品。

公开(公告)号：WO1989000282A1

公开(公告)日：1989-01-12

申请号：PCT/US1988001558

申请日：1988-05-11

Applicant: WEYERHAEUSER COMPANY

Inventor： WEYERHAEUSER COMPANY ,  ARIESSOHN, Peter, C.

IPC: G01K11/20

CPC classification number: G01K11/20 ,  G01K13/02

Abstract: The present invention is a method of measuring the temperature of a hot crystalline material. It is especially well adapted for measuring the temperature of mineral products within or being discharged from rotary or other types of kilns. The mineral material entering the kiln is doped with a rare earth compound at a level of at least 0.001 molar percent, preferably about 0.01 molar percent. During the process of calcination in the kiln, the rare earth is incorporated into the crystal lattice of the host mineral to form a phosphor. This is excited by laser light of an appropriate wavelength. The fluorescence emitted by the excited hot material is then measured and can be accurately related to the temperature. In one version of the invention the mineral material is used in a chemical process where it is recycled to the kiln for recovery. The lime cycle in a kraft pulping operation is such a process. In this way there is minimal loss of the rare earth material and all that need be added is a sufficient amount to make up process losses. Under such operating conditions the cost is minimum and is minor when compared to the potential savings in fuel by avoiding overburning. However, the amounts of rare earth dopant used are sufficiently small so that the process can be used with other calcined materials, such as cement, which are not recycled through the process. Praseodymium is a preferred dopant for use with lime kilns.

公开(公告)号：WO1988004704A1

公开(公告)日：1988-06-30

申请号：PCT/US1987002909

申请日：1987-11-06

Applicant: WEYERHAEUSER COMPANY

Inventor： WEYERHAEUSER COMPANY ,  GRAEF, Peter, Allen

IPC: D21C09/00

CPC classification number: D21H23/28 ,  A61L15/28 ,  D21C9/005 ,  D21H17/06 ,  C08L1/02

Abstract: A method of making a resilient hydrophilic cellulosic pulp particularly suitable for conversion into an absorbent fluff for products such as disposable diapers. The process involves treating a wet or partially dried cellulosic fiber web with an aqueous solution of a glycol an dialdehyde. Glyoxal and propylene glycol are preferred materials. These are desirable sprayed on a wet or only partially dried sheet at some convenient location on a conventional paper machine. This location is not critical, but a point about midway through the press section has given excellent results. The treated sheet is then dried conventionally. There is no need for the use of any catalysts or for a prolonged curing step at elevated temperatures. The products of the invention are characterized by a much increased absorbency rate and by a somewhat higher water holding capacity. The sheets also require less power for milling into a fibrous fluff. Knots ou fiber clumps are reduced and there is no significant increase in fiber fines due to embrittlement of the treated pulp product. The invention further includes the products made using the present method.

Abstract translation: 一种制造弹性亲水性纤维素纸浆的方法，特别适用于将产品如一次性尿布转化成吸收性绒毛。 该方法包括用二醇和二醛的水溶液处理湿的或部分干燥的纤维素纤维网。 乙二醛和丙二醇是优选的材料。 这些需要在常规造纸机上的一些方便的位置喷涂在湿的或仅部分干燥的片材上。 这个位置并不重要，但通过新闻部分的中间点已经取得了很好的成果。 然后将经处理的片材经常干燥。 在升高的温度下不需要使用任何催化剂或延长固化步骤。 本发明的产品的特征在于吸收速率大大提高，保水能力更高。 片材也需要更少的功率来铣削成纤维绒毛。 纤维团的结节减少，并且由于处理后的纸浆产品的脆化而导致的纤维细粉没有显着增加。 本发明还包括使用本方法制造的产品。

公开(公告)号：WO1987001179A1

公开(公告)日：1987-02-26

申请号：PCT/US1986001001

申请日：1986-05-08

Applicant: WEYERHAEUSER COMPANY

Inventor： WEYERHAEUSER COMPANY ,  LINCOLN, James, Frederick, Lewis ,  BUDER, Manfred, Konrad ,  BROWN, Craig, Allan ,  GOLIKE, Gregory, Philip ,  SPURRELL, Robert, Melven

IPC: F23D01/00

CPC classification number: F23G5/02 ,  C10L5/44 ,  F23G2201/10 ,  F23G2201/602 ,  F23G2201/80 ,  F23G2209/261 ,  F23K1/00 ,  Y02E50/10 ,  Y02E50/30

Abstract: The recovery of heat values from biomass materials such as wood waste or peat. Wood waste or ''hog fuel'' from the forest industries is of particular interest. It has been discovered that this material can be burned with no fossil fuel support in an air suspension-type burner, located in a boiler (34), without the need to finely pulverized the full fuel stream. One portion of the biomass fuel stream is ground (16) so that it is less than 100 mu m in diameter and fed (30) to the burner. This fine portion serves as an ignition component and should comprise about 20% of the total heating value of the fuel, using a conventional air suspension burner, or 10% of the total heating value using a staged burner, when the burners are operated at full load. The balance of the fuel fed (32) to the burner can be of much larger particle size. This can be up to 10 mm or even greater in maximum dimension if used with a grate equipped boiler. If the boiler lacks a grate, the principal fuel component should not exceed about 1 mm in thickness and 4 mm in any other dimension if carryover is to be avoided. A key aspect of the invention is the discovery that the total amount of ignition fuel component should be maintained constant regardless of burner load.

Abstract translation: 从木材废物或泥炭等生物质材料回收热量。 森林工业的木材废料或“猪肉燃料”特别令人感兴趣。 已经发现，这种材料可以在位于锅炉（34）中的空气悬浮式燃烧器中不用化石燃料支持物燃烧，而不需要将完整的燃料流精细地粉碎。 一部分生物质燃料流被研磨（16），使其直径小于100微米，并向燃烧器供给（30）。 当燃烧器完全运行时，该细小部分用作点火组件，并且应使用常规空气悬架燃烧器占燃料总热值的约20％，或使用分段式燃烧器的总热值的10％ 加载。 燃料供给的燃料（32）的平衡可以是大得多的粒度。 如果与装有炉排的锅炉一起使用，最大尺寸可达10 mm甚至更大。 如果锅炉没有炉排，主要燃料组分的厚度不应超过约1mm，任何其他尺寸都不应超过4 mm，如果要避免残留物。 本发明的一个关键方面是发现，不管燃烧器负载如何，点燃燃料组分的总量应该保持恒定。

公开(公告)号：WO1986006308A1

公开(公告)日：1986-11-06

申请号：PCT/US1986000798

申请日：1986-04-21

Applicant: WEYERHAEUSER COMPANY

Inventor： WEYERHAEUSER COMPANY ,  WRIGHT, James, Leroy

IPC: B23D61/06

CPC classification number: B23D65/00 ,  B23C5/22 ,  B23D61/06

Abstract: Rotary machining tool and a method of making it using an easily replaceable cutter element assembly. A circular saw is exemplary of a cutting tool which can be made using the present invention. The cutter element assembly (50) comprises two portions. The first is an inverted, generally U-shaped clevis (52) with spaced apart side portions (60) that fit over the circumference edge of a sawplate (42). The clevis has an upper portion (64) which extends outwardly from the sawplate edge (48) thereby defining a tooth retaining socket (65) between the sawplate edge (48) and the clevis (52). The side portions (60) of the clevis are apertured at (57) to accept a pin (56) for attachment to the sawplate which has a corresponding aperture (59). A buttress (58) attached to the clevis (52) normally bears against the leading edge (45) of a gullet (44) and prevents rearward rotation when in use. The second member is an insertable tooth (54) having a head and an elongated tapered shank (66). The shank (66) has a taper on its upper surface sufficient to form a self-releasing taper, usually between 3 and 10 . The sides of the shank (66) have less taper so as to form a self-locking taper, typically between 0 and 2.5 . The tooth shank (66) is driven into the socket (65) formed between the clevis (52) and the sawplate (48). As the tooth (54) is driven in, the clevis (52) is forced radially outward against the attaching pin (56) so as to tightly lock the assembly until the tooth (54) is again driven out for sharpening or replacement. While the teeth may be sharpened in place on the sawplate, it is frequently advantageous to disassemble the saw and sharpen the teeth separetely. This permits a number of grinding configurations to be used which are not otherwise possible when the saw is fully assembled. The only tools required for saw assembly and disassembly are a hammer and punch. A 1.5 m diameter saw having 60 teeth can be completely retoothed in place in as little as 6 minutes.

Abstract translation: 旋转加工工具以及使用易于更换的刀具组件的方法。 圆锯是可以使用本发明制造的切削工具的示例。 切割元件组件（50）包括两部分。 第一个是倒置的大致U形U形夹（52），其具有配合在锯板（42）的圆周边缘上的间隔开的侧部（60）。 U形夹具有从锯片边缘（48）向外延伸的上部（64），从而在锯片边缘（48）和U形夹（52）之间形成一个保持牙槽（65）。 U形夹的侧部（60）在（57）处开孔以接收用于附接到具有相应孔（59）的锯片的销（56）。 附接到U形夹（52）的支撑件（58）通常抵靠齿槽（44）的前缘（45），并在使用时防止向后旋转。 第二构件是具有头部和细长锥形柄部（66）的可插入齿（54）。 柄（66）在其上表面上具有足以形成通常在3°和10°之间的自动释放锥度的锥形。 柄（66）的侧面具有较小的锥度，以形成通常在0和2.5之间的自锁锥度。 齿柄（66）被驱动到形成在U形夹（52）和锯板（48）之间的插座（65）中。 当齿（54）被驱动时，U形夹（52）被迫径向向外抵靠附接销（56），以便紧紧地锁定组件，直到齿（54）再次被驱出以进行磨削或更换。 虽然齿可能在锯片上的位置被磨削，但是经常有利的是拆开锯并分开磨齿。 这允许使用多个研磨构造，当锯完全组装时，这些磨削构型是不可能的。 锯组装和拆卸所需的唯一工具是锤子和冲头。 具有60个齿的1.5米直径的锯可以在短短6分钟内完全旋转到位。

公开(公告)号：WO1986004621A1

公开(公告)日：1986-08-14

申请号：PCT/US1985000205

申请日：1985-02-11

Applicant: WEYERHAEUSER COMPANY

Inventor： WEYERHAEUSER COMPANY ,  GESS, Jerome, Murray ,  GAINES, Robert, Charles ,  MARDING, Margot, Jean

IPC: D21C09/00

CPC classification number: C08B11/145 ,  D21C9/005 ,  D21C9/1026 ,  D21H11/22

Abstract: A fibrous, cationic cellulose pulp product and the method for preparing it. A water suspension of cellulosic fiber is treated under alkaline conditions with a polymer of epichlorohydrin and dimethylamine. Up to 30 molar percent of the DMA may be replaced by a crosslinking agent such as ammonia or a lower aliphatic diamine. The process may be carried out at room or elevated temperatures. It is practical to add the polymer at one of the later alkaline stages of a bleaching process: e.g., an alkaline extraction or peroxide stage. This is most preferably done later than any chlorination or hypochlorite stages. The product shows greatly improved retention of acid and other anionic dyes as shown in figure 1. It also shows superior retention of some pigments and latices without the need for other cationic aids. In some cases a small amount of alum appears to have a synergistic retention effect with the cationic pulp product when used with titanium dioxide and certain anionic latices.

Abstract translation: 纤维状阳离子纤维素纸浆制品及其制备方法。 在碱性条件下用表氯醇和二甲胺的聚合物处理纤维素纤维的水悬浮液。 高达30摩尔％的DMA可以由交联剂如氨或低级脂族二胺代替。 该方法可以在室温或高温下进行。 在漂白过程的较后碱性阶段之一中添加聚合物是实用的：例如碱性提取或过氧化物阶段。 这最好比任何氯化或次氯酸盐阶段晚。 该产品显示出大大改善了酸和其它阴离子染料的保留性，如图1所示。它还显示出一些颜料和胶乳的优异保留性，而不需要其它阳离子助剂。 在一些情况下，当与二氧化钛和某些阴离子胶乳一起使用时，少量的明矾似乎与阳离子纸浆产品具有协同的保留效果。

公开(公告)号：WO1986002729A1

公开(公告)日：1986-05-09

申请号：PCT/US1985001965

申请日：1985-10-10

Applicant: WEYERHAEUSER COMPANY

Inventor： WEYERHAEUSER COMPANY ,  MATTHEWS, Peter, Charles ,  SOEST, Jon, Fredrick

IPC: G01N21/55

CPC classification number: G01N21/4738 ,  G01N2021/4716

Abstract: Method for measuring fiber angle in a fibrous solid material (12) relative to three mutually orthogonal reference axes. It is particularly well suited for measuring diving grain and grain surface angle in wood. The method is based on the measurement of the intensity of reflected light at different azimuthal angles when a beam of light (14) of small diameter is impinged upon the surface (12). The nature of the specular reflections (20) from a light beam (14) striking the surface of a cylinder (12) serves as a model for the system. A preferred apparatus for practicing the method comprises a light source, which may be a low powered laser, aimed normal to the surface of the fibrous material (12). A plurality of photosensors (22, 24, 26, 28, 32) lying in a plane (30) normal to the axis of the light beam (14) are placed around the light source to detect the light reflected at various azimuthal angles. When the fibers of the material (12) lie normal to the light beam (14), reflected light maxima are seen 180 apart at positions normal to the longitudinal axis of the fibers. If the fiber axes in the material (12) are tilted out of normalcy with respect to the incoming light beam (14), even though the surface of the material (12) is normal, the azimuthal angle between the reflected light maxima decreases as a function of the tilt angle. Various alternative methods include the use of an on-axis (52) photosensor with a multiplexed series of light sources (58) arranged around the axis (52). These lights (58) may be used simultaneously if they are of different wavelengths and the photosensors (92, 94, 96, 98) employs a beam splitting (86) and filtering system sensitive to each different light source (72, 74, 76, 78).

Abstract translation: 用于相对于三个相互正交的参考轴测量纤维状固体材料（12）中的纤维角度的方法。 特别适用于测量木材中的潜水颗粒和颗粒表面角度。 该方法基于当小直径的光束（14）撞击在表面（12）上时，测量不同方位角处的反射光的强度。 来自撞击气缸（12）表面的光束（14）的镜面反射（20）的性质用作该系统的模型。 用于实施该方法的优选装置包括光源，其可以是低功率激光器，其垂直于纤维材料（12）的表面。 位于与光束（14）的轴线垂直的平面（30）中的多个光电传感器（22,24,26,38,32）被放置在光源周围，以检测以各种方位角度反射的光。 当材料（12）的纤维垂直于光束（14）时，反射光最大值在垂直于纤维的纵向轴线的位置处被看到180°。 如果材料（12）中的纤维轴相对于入射光束（14）倾斜超出正常状态，即使材料（12）的表面是正常的，反射光最大值之间的方位角随着 功能的倾斜角度。 各种替代方法包括使用布置在轴线（52）周围的多路复用系列光源（58）的轴上（52）光传感器。 如果这些光（58）具有不同的波长并且光电传感器（92,94,96,98）采用对每个不同光源（72,74,76,98）敏感的分束（86）和滤光系统， 78）。

公开(公告)号：WO1985003094A1

公开(公告)日：1985-07-18

申请号：PCT/US1984001807

申请日：1984-11-07

Applicant: WEYERHAEUSER COMPANY

Inventor： WEYERHAEUSER COMPANY ,  WELLS, Roger

IPC: D21F05/00

CPC classification number: D21F7/003 ,  D21F7/008

Abstract: A steam box or hood (10) for controlling the moisture profile of a fibrous web such as paper during forming and pressing. The steam hood (10) includes a plenum (12) filled with nonturbulent, substantially atmospheric pressure steam which delivers the steam into a series of side-by-side compartments (17) which extend across the width of and adjacent to the web. Each compartment includes a damper (20), the position of which is individually controllable through a rod (22) adjustment from the operating side of the machine. The position of the damper (20) determines the amount of steam applied to the web from a compartment and hence the moisture content of the web adjacent to the particular compartment (17) being adjusted. Each compartment (17) is adjusted to achieve a desired uniform moisture content across the width of the web.

公开(公告)号：WO1984004597A1

公开(公告)日：1984-11-22

申请号：PCT/US1984000740

申请日：1984-05-16

Applicant: WEYERHAEUSER COMPANY

Inventor： WEYERHAEUSER COMPANY ,  SPEAKS, Jerry, Robert ,  WARRICK, Ronald, Paul ,  ROZWOD, Thomas, Gordon

IPC: G01N31/08

CPC classification number: G01N33/343 ,  G01N31/00

Abstract: A process and apparatus for measuring carbonate and sulfide concentrations in white and green pulp mill liquor and in the slaker/causticizing cells and controlling the causticizing reaction and other stages using this information. Specifically the causticizing control logic is based on determining the concentration of sodium carbonate and sodium sulfide in the green liquor, in the white liquor-mud slurry at the slaker (S) or first causticizer (C1) and in the white liquor being sent to the digester house and using this information to control the entire process. The apparatus takes a sample from an appropriate line, filters the sample if necessary, takes a measured quantity, reacts that measured quantity with an acid to generate hydrogen sulfide and carbon dioxide and measures the quantities of these gases in a gas chromatograph (GC). The apparatus has four main circuits: the filter circuit, the sampling circuit, the reactor circuit and the gas chromatograph circuit. A mud separation circuit is also utilized if the apparatus is to analyze liquor from the slaker or causticizing cells.

Abstract translation: 用于测量白色和绿色纸浆浆液中的碳酸盐和硫化物浓度的方法和装置，并且使用该信息控制苛化反应和其它阶段。 具体来说，苛化控制逻辑是基于确定绿液中的碳酸钠和硫化钠的浓度，在洗涤剂（S）或第一苛化剂（C1）的白液 - 泥浆中，并将白液送至 消化室和使用这些信息来控制整个过程。 该装置从合适的管线取样品，必要时过滤样品，测量数量，用酸反应测量的量，产生硫化氢和二氧化碳，并在气相色谱仪（GC）中测量这些气体的量。 该装置具有四个主要电路：滤波电路，采样电路，电抗器电路和气相色谱电路。 如果设备要分析来自洗涤剂或苛化单元的液体，也会使用泥浆分离回路。

公开(公告)号：WO1984004552A1

公开(公告)日：1984-11-22

申请号：PCT/US1984000739

申请日：1984-05-16

Applicant: WEYERHAEUSER COMPANY

Inventor： WEYERHAEUSER COMPANY ,  SPEAKS, Jerry, Robert ,  McCALL, Thomas, Franklin ,  WARRICK, Ronald, Paul

IPC: D21C11/04

CPC classification number: D21C11/0064

Abstract: A process and apparatus for measuring carbonate and sulfide concentrations in white and green pulping liquor and in the slaker/causticizing (S, C1) cells and controlling the causticizing reaction and other stages using this information. Specifically the causticizing control logic is based on determining the concentration of sodium carbonate and sodium sulfide (GC/A) in the green liquor, in the white liquor-mud slurry at the slaker or first causticizer (ML3) and in the white liquor being sent to the digester house and using this information to control the entire process. Th e concentration and flow rate of the green liquor may be measured and controlled quite easily. The proposed strategy will control the green liquor flow rate (V41) to the slaker to maintain the desired Na2CO3 concentration in the slaker/causticizer liquor despite variations which occur in the lime. The green liquor concentration is also controlled in a control loop. Weak wash liquor (L40) is added to the green liquor to maintain the concentration of the Na2CO3 in the green liquor. The slaking/causticizing process is controlled by adjusting the flow rate and concentration of the green liquor. This strategy will control the process based on direct measurements of the critical component in the system, sodium carbonate. The green liquor flow rate will be automatically adjusted by a control loop to maintain the desired Na2CO3 concentration in the white liquor. The last measurement is to determine the concentrations of sodium hydroxide, sodium carbonate, and sodium sulfide in the white liquor which is sent to the digester house to be used in the cooking process. It is important to measure the sodium hydroxide and sodium sulfide concentrations in the white liquor (RS3, GC/A) so that the amount of liquor to be charged in the digester(s) may be correctly determined. Changes in sodium sulfide concentration (generated at the recovery boiler) can affect white liquor (AA/EA) concentration.

Abstract translation: 用于测量白色和绿色制浆液体中的浓度和硫化物浓度（S，C1）的碳酸盐和硫化物浓度的方法和装置，并使用该信息控制苛化反应和其它阶段。 具体来说，苛化控制逻辑基于确定绿液中的碳酸钠和硫化钠（GC / A）的浓度，在洗液或第一苛性剂（ML3）的白液 - 泥浆中和在白液中的浓度 到消化室，并使用这些信息来控制整个过程。 可以很容易地测量和控制绿液的浓度和流速。 所提出的策略将控制绿液的流速（V41），以保持所需的Na 2 CO 3浓度，即使在石灰中发生变化，也可以在酸洗/苛化剂液中保持所需的Na 2 CO 3浓度。 绿液浓度也在控制回路中控制。 将弱洗液（L40）加入绿液中以保持绿液中Na 2 CO 3的浓度。 通过调节绿液的流速和浓度来控制消化/苛化过程。 该策略将基于系统中关键成分的直接测量来控制过程碳酸钠。 绿液流速将通过控制回路自动调节，以保持白液中所需的Na2CO3浓度。 最后一个测量是确定送到蒸煮室的白液中的氢氧化钠，碳酸钠和硫化钠的浓度用于烹饪过程。 测量白液（RS3，GC / A）中的氢氧化钠和硫化钠浓度是重要的，以便可以正确确定在蒸煮器中加入的液体的量。 硫化钠浓度的变化（在回收锅炉中产生）可影响白液（AA / EA）浓度。