-
公开(公告)号：US5367894A
公开(公告)日：1994-11-29
申请号：US53729
申请日：1993-04-27
摘要： A flat bed, Fourdrinier-type, countercurrent washer for cellulosic pulp incorporates a pressing section at the downstream end thereof which includes the couch roll and additional rolls that carry out multiple mechanical pressing operations on the pulp after it has been subjected to multiple stages of displacement washing without mechanical treatment. As a result, where such washers without mechanical pressing deliver pulp of a consistency of the order of 15% solids, this washer increases the pulp consistency to as high as 40% while correspondingly increasing the effectiveness of the washing operation as a whole.
摘要翻译： 用于纤维素纸浆的长网式长纤维型逆流洗衣机的平床包括在其下游端的挤压部分，该挤压部分包括沙发辊和附加辊，其在经过多个位移位移之后对纸浆进行多次机械压制操作 洗涤无机械处理。 结果，在没有机械压力的这种垫圈提供具有15％固体含量的稠度的纸浆的情况下，该垫圈将纸浆稠度提高到高达40％，同时相应地提高了洗涤操作的整体效果。
-
公开(公告)号：US5221437A
公开(公告)日：1993-06-22
申请号：US726971
申请日：1991-07-08
CPC分类号： D21D5/026
摘要： Screening apparatus for separately removing knots and heavy reject particles from paper making stock comprises a generally cylindrical vertical housing having the interior thereof separated by a cylindrical perforated screening member into an annular screening chamber and an accepts space on the outer and inner sides of the screening cylinder respectively. Separate outlets for light and heavy reject particles are located at the top and bottom of the screening chamber, the supply flow of feed stock enters the screening chamber at the bottom thereof, and special provision is made to insure that maximum separation of the knots and other lighter reject particles from the heavy reject materials will be effected within the screening chamber with minimum contact with the screening cylinder itself.
摘要翻译： 用于从造纸原料分离除去结和重污垢颗粒的筛选装置包括一个大致圆柱形的垂直壳体，其内部由圆柱形穿孔筛分构件分隔成环形筛分室，并且在筛筒的外侧和内侧上的容纳空间 分别。 轻型和重型废弃颗粒的分离出口位于筛分室的顶部和底部，原料供应流在其底部进入筛分室，并特别规定确保结和其他物质的最大分离 来自沉重废料的较轻的废料颗粒将在筛分室内进行，与筛分筒本身的接触最小。
-
公开(公告)号：US08967341B2
公开(公告)日：2015-03-03
申请号：US14119922
申请日：2012-05-23
申请人： Matthias Niessner , Peter Seifert
发明人： Matthias Niessner , Peter Seifert
CPC分类号： F16D65/124 , B61H5/00
摘要： Wheel-mounted brake disks which are arranged on both sides of a wheel base of a railway wheel and are fastened by through bolts, the bolt head of every through bolt lying in a countersink of one wheel-mounted brake disk and a nut screwed onto the through bolt lying in a countersink of the other wheel-mounted brake disk, each resting either directly or indirectly on the bottom of the countersink. The wheel-mounted brake disks are designed so that every countersink has an undercut portion that extends down to the bottom.
摘要翻译： 轮毂制动盘，其布置在铁路车轮的车轮基座的两侧并通过螺栓紧固，每个贯穿螺栓的螺栓头位于一个轮式制动盘的锪孔中，螺母拧到 通过螺栓位于另一个轮式安装的制动盘的埋头孔中，每个直接或间接搁置在埋头孔的底部。 轮式制动盘被设计成使得每个沉孔具有向下延伸到底部的底切部分。
-
公开(公告)号：US5382327A
公开(公告)日：1995-01-17
申请号：US649232
申请日：1991-01-29
申请人： Peter Seifert , David E. Chupka
发明人： Peter Seifert , David E. Chupka
摘要： Embodiments of apparatus for thickening a liquid suspension of solid particles, such as papermaking pulp in water, include a pair of spaced apart rolls and a woven wire or plastic wire belt trained around these rolls. The suspension is supplied to the apparatus at the first roll for centrifugal extraction and is carried by the belt to the second roll for further water extraction and thickening, and is then discharged from the apparatus. In one embodiment, the first roll is formed with an open surface, and the suspension is delivered to the web at least partially by flowing through the first roll openings, from either a headbox in the on-running wedge zone or a headbox internal to the rolls to deliver stock outwardly through the roll. The apparatus may also include a second roll which is porous and has auxiliary water-removing appliances associated therewith, including blow boxes for forcing air either radially inwardly or radially outwardly of the second roll, and an auxiliary nip roll for creating a zone of higher compression for mechanical extraction of water from the mat of solid particles between the belt and the second roll. Rewetting of the mat caused by water entrained in the wire mesh cavities is reduced by the impingement of air jets to remove such water. In a further embodiment, one or both rolls may include a pair of disks spaced apart on a support shaft with the wire belt trained over the outer surfaces of the disks so that a substantial open extent of the belt is defined between the disks. The rolls may be mounted with the plane defined by their axes in any desired spatial orientation, from horizontal to vertical.
摘要翻译： 用于增稠固体颗粒（例如水中造纸纸浆）的液体悬浮液的装置的实施例包括一对间隔开的辊和围绕这些辊训练的编织线或塑料丝带。 将悬浮液供给到第一辊的设备用于离心提取，并由带子承载到第二辊以进一步的水分抽取和增稠，然后从设备中排出。 在一个实施例中，第一辊形成有敞开的表面，并且悬挂物至少部分地通过流过第一辊开口而从运动中的楔形区域中的流浆箱或内部的流浆箱 卷通过卷轴向外传送。 该设备还可以包括多孔的第二辊，并且具有与之相关联的辅助除水设备，包括用于迫使空气径向向内或径向向外的第二辊的吹气箱，以及用于产生较高压缩区域的辅助辊隙 用于从带和第二辊之间的固体颗粒的垫子机械提取水。 由夹带在丝网孔中的水引起的垫的回收通过喷射器的冲击而减少以除去这种水。 在另一个实施例中，一个或两个辊可以包括在支撑轴上间隔开的一对盘，其中丝带在盘的外表面上训练，使得在盘之间限定带的基本敞开的程度。 辊可以以其轴线在从水平到垂直的任何期望的空间方向上限定的平面安装。
-
公开(公告)号：US5189775A
公开(公告)日：1993-03-02
申请号：US840460
申请日：1992-02-25
申请人： Peter Seifert
发明人： Peter Seifert
CPC分类号： F16C13/028 , D21F7/02 , D21G1/0006 , D21G1/022
摘要： A deflection controlled roll has a rotatable shell supported on a non-rotating central beam by a plurality of individual shoes which are positioned transversely of the beam between the beam and the shell. A curved semicylindrical surface of the shoe bears against an inside surface of the shell and is hydrodynamically lubricated by an oil film, in the nature of a plain bearing. The shoes are biased by inflatable air lift bellows which are positioned within recesses within the shoe, between the shoe and the beam. The shoes are mounted on the beam on pins which provide at least three degrees of freedom of movement. An improved drive for the roll shell has a cog belt sheave mounted on the shell in concentric relation to one of the shell support bearings. A cog-type drive belt is threaded on the sheave, and a drive pulley for the drive belt is positioned normal to the direction of shell deflection such that the deflections do not change the spacing between the pulley and the sheave.
摘要翻译： 偏转控制辊具有通过多个独立的鞋支撑在不旋转的中心梁上的可转动的壳，其横向于横梁和壳之间的梁定位。 鞋的弯曲半圆柱形表面抵靠壳体的内表面，并且由滑动轴承的性质由油膜进行流体动力学润滑。 鞋子由位于鞋内的凹槽内，位于鞋和梁之间的充气式气举波纹管偏压。 鞋子被安装在提供至少三个运动自由度的销上的梁上。 用于辊壳的改进的驱动器具有安装在壳体上的同轴带轮，其与壳体支撑轴承中的一个同心。 齿轮式齿轮传动皮带被拧在滑轮上，用于传动皮带的驱动皮带轮定位成垂直于壳体偏转的方向，使得偏转不会改变皮带轮和滑轮之间的间隔。
-
6.发明授权Solution of a polyurethane in a polyol and a process for using such a solution in the production of polyurethane plastics 失效聚氨酯在多元醇中的溶液以及在制备聚氨酯塑料中使用这种溶液的方法
公开(公告)号：US4371630A
公开(公告)日：1983-02-01
申请号：US236949
申请日：1981-02-23
申请人： Klaus Konig , Hans-Walter Illger , Peter Seifert , Holger Meyborg
发明人： Klaus Konig , Hans-Walter Illger , Peter Seifert , Holger Meyborg
IPC分类号： C08G18/00 , C08G18/08 , C08G18/65 , C08G18/66 , C08L75/04 , C08G18/14 , C08G18/32 , C08G18/42
CPC分类号： C08G18/0857 , C08L75/04 , Y10S521/914
摘要： A solution of a polyurethane in a polyol is made from (a) the reaction product of a polyisocyanate and a diprimary diol, and (b) a polyether in which the reaction product constitutes from 3 to 60 wt. % of the solution. Suitable diprimary diols have a molecular weight of from 90 to 800 and a structure at both hydroxyl groups corresponding to the general formula: ##STR1## in which R.sub.1 represents chlorine, an alkyl, cycloalkyl, aralkyl or aryl radical having from 1 to 10 carbon atoms, which carbon atoms may be substituted or interrupted by chlorine, ester groups, ether groups, amide groups, urethane groups or nitrile groups, andR.sub.2 represents hydrogen or a radical within the definition of R.sub.1.Polyethers which may be employed have at least two hydroxyl groups (at least 80% of which are secondary hydroxyl groups) and an average molecular weight of from 500 to 12,000. The disclosed solutions are particularly useful in the production of flexible polyurethane plastics which are suitable for flamecoating and high frequency bonding.
摘要翻译： 聚氨酯在多元醇中的溶液由（a）多异氰酸酯与二元二元醇的反应产物和（b）反应产物构成3〜60重量％的聚醚制成。 ％的解决方案。 合适的二原子二醇的分子量为90至800，并且在两个羟基上的结构对应于以下通式：其中R 1表示氯，具有1至10个碳原子的烷基，环烷基，芳烷基或芳基 ，哪些碳原子可以被氯，酯基，醚基，酰胺基，氨基甲酸酯基或腈基取代或中断，并且R 2表示氢或R 1定义中的基团。 可以使用的聚醚具有至少两个羟基（其中至少80％是仲羟基），平均分子量为500至12,000。 所公开的解决方案在生产柔性聚氨酯塑料时特别有用，这些塑料适合于熔融和高频粘合。
-
7.发明授权Dialkoxy-phosphonyl-N-alkyl-formic acid amides and their use as additives for the production of polyurethane foams which are capable of being flame laminated and high frequency welded 失效二烷氧基 - 膦酰基-N-烷基 - 甲酸酰胺及其作为生产能够被火焰层压和高频焊接的聚氨酯泡沫的添加剂的用途
公开(公告)号：US4328321A
公开(公告)日：1982-05-04
申请号：US185870
申请日：1980-09-11
申请人： Peter Haas , Heinz Muller , Peter Seifert , Kuno Wagner , Kurt Findeisen , Klaus Konig
发明人： Peter Haas , Heinz Muller , Peter Seifert , Kuno Wagner , Kurt Findeisen , Klaus Konig
CPC分类号： C08J9/0038 , C07F9/4065 , C08J2375/04
摘要： The present invention relates to a process for the preparation of polyurethane foams capable of being flame laminated and high frequency welded, comprising reacting:(a) polyisocyanate,(b) a compound having a molecular weight of from 400 to 10,000 containing at least two isocyanate-reactive hydrogen atoms and(c) a dialkoxy-phosphonyl-N-alkyl-formic acid amide of the formula: ##STR1## wherein m represents an integer of from 1 to 3,n represents an integer of from 0 to 8,X represents halogen, hydrogen, C.sub.1 to C.sub.6 alkyl, --OR, or ##STR2## R represents C.sub.1 to C.sub.6 alkyl, R.sub.1 represents hydrogen, C.sub.1 to C.sub.10 alkyl, C.sub.1 to C.sub.10 alkylene, C.sub.6 to C.sub.10 aryl or C.sub.6 to C.sub.10 arylene, andR.sub.2 and R.sub.3, which may be the same or different, represent C.sub.1 to C.sub.10 alkyl in the presence of water and/or blowing agent.The present invention also relates to dialkoxy-phosphonyl-N-formic acid amides.
摘要翻译： 本发明涉及一种制备能够进行火焰层压和高频焊接的聚氨酯泡沫体的方法，包括使（a）多异氰酸酯，（b）分子量为400至10,000的含有至少两种异氰酸酯的化合物 - 反应性氢原子和（c）下式的二烷氧基膦酰基-N-烷基 - 甲酸酰胺其中m表示1至3的整数，n表示0至8的整数，X表示 卤素，氢，C1至C6烷基，-OR或R表示C1至C6烷基，R1表示氢，C1至C10烷基，C1至C10亚烷基，C6至C10芳基或C6至C10亚芳基，R2和 R 3可以相同或不同，在水和/或发泡剂的存在下表示C1至C10烷基。 本发明还涉及二烷氧基 - 膦酰基-N-甲酸酰胺。
-
公开(公告)号：US4155839A
公开(公告)日：1979-05-22
申请号：US855157
申请日：1977-11-28
申请人： Peter Seifert , Derald R. Hatton , Terry L. Bliss
发明人： Peter Seifert , Derald R. Hatton , Terry L. Bliss
CPC分类号： D21B1/32 , B04C5/04 , D21B1/322 , D21D5/24 , Y02W30/646
摘要： A system and method for separating paper fibers from contaminants of lower specific gravities employ a reverse centrifugal cleaner wherein the inlet port is of substantially greater flow area than previously used or proposed for either normal or reverse centrifugal cleaning, each of the apex and base ports are of greater flow area than the inlet port, and the discharge flows are controlled to provide an accepts flow through the apex port which is less than the reject flow through the base port. The system provides substantial advantages over prior practice, particularly in the areas of both capital and operating costs, capacity, and cleaning efficiency in terms of the energy requirements for given tonnage of accepted fiber.
摘要翻译： 用于将纸纤维与较低比重的污染物分离的系统和方法采用反向离心清洁器，其中入口端口具有比先前使用的或建议用于正常或反向离心清洗的流动面积大得多的顶点和底部端口中的每一个 具有比入口更大的流动面积，并且排放流量被控制以提供通过顶端口的接受流量，其小于通过基端口的排出流量。 该系统比以前的实践提供了显着的优点，特别是在给定吨位的可接受纤维的能量需求方面，资本和运营成本，能力和清洁效率方面。
-
公开(公告)号：USRE28677E
公开(公告)日：1976-01-13
申请号：US481882
申请日：1974-06-21
CPC分类号： B02C18/0092
摘要： A waste treatment system which is capable of handling materials of widely different physical characteristics such as glass, metal, and fibrous and plastic waste, incorporates a rotor rotatably mounted in a waste receiving vessel, the rotor being adapted to fracture brittle material, compact malleable material, and otherwise pulverize the frangible waste to a particulate form small enough to be extracted through a perforated plate. The rotor also circulates the material in a slurry form within the vessel in a vortical pattern so that the waste is repeatedly treated until it is ejected from the vessel. A series of space attrition bars are mounted outwardly of the rotor to provide an annularly shaped, discontinuous attrition surface, and hammers or flails are pivotally mounted on the rotor to reduce into smaller pieces materials which are flung upon or between the attrition bars by the rotor. Where the waste material contains a high proportion of rags, tubing and other stringy material, a rotating chopper blade is provided to chop this portion of the waste into smaller pieces which are more readily handled by the rotor and flails. Waste materials which are not readily reduced to a pulverized state by the system are segregated from those which are and removed separately.
-
公开(公告)号：US20060053566A1
公开(公告)日：2006-03-16
申请号：US11172063
申请日：2005-06-29
申请人： Biancamaria Prozzo , Peter Seifert
发明人： Biancamaria Prozzo , Peter Seifert
IPC分类号： C11D3/00
CPC分类号： D06P1/525 , C11D1/662 , C11D1/72 , C11D1/8255 , C11D3/2044 , C11D3/3765 , D06L1/12 , D06L4/40 , D06M13/148 , D06M13/17 , D06M13/207 , D06M15/03 , D06M15/263 , D06M2101/06 , D06P1/48 , D06P1/6133 , D06P1/65118 , D06P1/65131 , D06P1/6533
摘要： Compositions that include a mixture of three different ethoxylated alcohols with or without further products are useful for pretreating textile materials, especially cotton fabrics. The compositions have acceptable viscosities and are preferably used in the form of aqueous solutions or dispersions. These have little if any tendency to form foam, are highly compatible with enzymes and impart very good rewettability to textiles treated therewith.
-
-
-
-
-
-
-
-
-
搜索结果
55 条记录 (耗时 0.025 秒)