CONVERGENT FLOW HEADBOX
    111.
    发明申请
    CONVERGENT FLOW HEADBOX 审中-公开
    转换流量HEADBOX

    公开(公告)号:WO1997047805A1

    公开(公告)日:1997-12-18

    申请号:PCT/US1997008299

    申请日:1997-05-06

    CPC classification number: D21F1/024 D21F1/02 D21F1/026 D21F1/028

    Abstract: A headbox (20) has a tube bank (28) of tubes (26) arranged in machine direction rows. The tubes (26) extend from an outlet wall (30) of a header to the inlet of a nozzle (42). The upper and lower walls (44, 46) of the nozzle (42) converge toward the nozzle outlet (48), and planes extending from the walls (nozzle roof and apron) converge to define an imaginary centerline extending in the cross-machine direction. The rows of tubes (26) lie along radially extending planes defined with respect to the centerline. The injection ends of the tubes define a cylindrical surface (64) extending between the nozzle walls (44, 46). Stock from each tube (26) is directed radially toward the centerline along flow paths (47) of equal length. Trailing vanes (68) may be positioned between the rows of tubes (26) so that each flow experiences almost identical flow boundary conditions as it moves towards the nozzle outlet (48), hence contributing to more uniform fiber orientation in the resultant paper web (51).

    Abstract translation: 流浆箱(20)具有沿机器方向排布置的管(26)的管堤(28)。 管(26)从集管的出口壁(30)延伸到喷嘴(42)的入口。 喷嘴(42)的上壁和下壁(44,46)朝向喷嘴出口(48)会聚,并且从壁(喷嘴屋顶和围裙)延伸的平面会聚,以限定在横机方向上延伸的假想中心线 。 管排(26)位于相对于中心线限定的径向延伸平面。 管的注射端限定了在喷嘴壁(44,46)之间延伸的圆柱形表面(64)。 来自每个管(26)的原料沿相同长度的流动路径(47)径向朝向中心线。 拖尾叶片(68)可以定位在管排(26)之间,使得每个流体在朝向喷嘴出口(48)移动时经历几乎相同的流动边界条件,从而有助于在所得到的纸幅中更均匀的纤维取向( 51)。

    CORE-INSERTION DEVICE FOR A WINDING MACHINE
    112.
    发明申请
    CORE-INSERTION DEVICE FOR A WINDING MACHINE 审中-公开
    一种绕线机的核心插入装置

    公开(公告)号:WO1997047547A1

    公开(公告)日:1997-12-18

    申请号:PCT/EP1997003101

    申请日:1997-06-13

    Abstract: The invention pertains to a core-insertion device for a winding machine with at least one support or carrier drum (21, 22) for winding of web-like material (1) to be wound, in particular paper or the like, with a means for feeding cores (10) to a take-up position running approximately parallel to the at least one support or carrier drum(s) (21, 22), with a displacement means (2) for holding, in a detachable way, and displacing the core(s) (10) from the take-up position to a winding position located at the surface of the at least one support or carrier drum(s) (21, 22). The displacement means comprises, firstly, an elongated core carrier (3) having a pivot joint (6) arranged above its center of mass and core-holding means (30) in its lower region, and secondly, an element which can be moved between the take-up position and the winding position for a free-swinging accommodation of the elongated core carrier (3) at its pivot joint (6) and for displacing the core carrier (3) including at least one core (10) from the take-up position to the winding position. Due to the invention, it is possible merely to move the winding cores (10) itself, but not its receiving recess (11), from the take-up position to the winding position on a predetermined path and at an unchanging angle with respect to the core axis, deeply into the winding bed (23), and then to release them there only when the winding cores (10) have come into contact with the support drums (21, 22).

    Abstract translation: 本发明涉及一种用于卷绕机的芯插入装置,其具有至少一个支撑或承载鼓(21,22),用于卷绕要卷绕的网状材料(1),特别是纸或类似物, 用于将芯(10)馈送到大致平行于至少一个支撑或承载鼓(21,22)的行走位置的卷取位置,具有用于以可拆卸的方式保持的位移装置(2) 所述芯部(10)从所述卷绕位置到位于所述至少一个支撑或承载鼓(21,22)的表面处的卷绕位置。 位移装置首先包括细长的芯托架(3),该细长的芯托架(3)在其下部区域中具有布置在其质心上方的枢转接头(6)和芯保持装置(30),其次,可以在 用于在其枢转接头(6)处的细长的芯托架(3)的自由摆动的容纳并且用于使包括至少一个芯部(10)的芯部托架(3)从卷取机构移位的卷取位置和卷绕位置 - 位置到卷绕位置。 由于本发明,可能仅将绕组芯(10)本身而不是其接收凹槽(11)从预定路径上的卷绕位置移动到绕组位置,并相对于 芯轴,深入到绕线床(23)中,然后仅在绕组芯(10)与支撑鼓(21,22)接触时将其释放。

    EXTENDED NIP PRESS WITH OSCILLATING BLANKET FOR EXTENDED WEAR
    113.
    发明申请
    EXTENDED NIP PRESS WITH OSCILLATING BLANKET FOR EXTENDED WEAR 审中-公开
    扩展NIP压力与振动毯子扩展磨损

    公开(公告)号:WO1997046756A1

    公开(公告)日:1997-12-11

    申请号:PCT/US1997007542

    申请日:1997-05-05

    CPC classification number: D21F3/0218 D21F3/0245

    Abstract: An Extended Nip-type press (20) has a blanket (30) which passes over a shoe (22) which is urged against a backing roll (24) to form a press nip (56). A hydraulic system (70) and controller (94) provides for automatic continuous oscillation of the blanket (30) in the cross machine direction. The oscillation results in a region of high fatigue (58, 59) continuously moving over the blanket (30) surface so that the amount of time any particular region sees wear is minimized. Positioning of the heads (38, 42) to which the blanket (30) ends are mounted is controlled by hydraulic pistons (60, 62) mounted between a support beam (26) and the heads (38, 42). A controller (94) operates a valve (74) to reverse the direction of motion of the blanket (30) when sensors (92, 98) indicate one end of the blanket (30) has reached a stop (64, 80). A throttle valve (86) controls the rate at which hydraulic fluid is supplied to the cylinders (60, 62) which urge the head (38, 42) away from the shoe (22).

    Abstract translation: 一个延长的尼普式压力机(20)具有一个穿过一个穿过一个支承辊(24)形成压榨压区(56)的鞋(22)的橡皮布(30)。 液压系统(70)和控制器(94)提供橡皮布(30)在横向上的自动连续振荡。 振荡导致在毛毯(30)表面上连续移动的高疲劳(58,59)区域,使得任何特定区域看到的磨损时间的量最小化。 安装橡皮布(30)端头的头部(38,42)的定位由安装在支撑梁(26)和头部(38,42)之间的液压活塞(60,62)控制。 当传感器(92,98)指示橡皮布(30)的一端已经到达停止(64,80)时,控制器(94)操作阀(74)以反转橡皮布(30)的运动方向。 节流阀(86)控制向液压缸(60,62)供应液压流体的速率,其将头部(38,42)推离鞋子(22)。

    HIGH NIP LOAD CALENDER
    114.
    发明申请
    HIGH NIP LOAD CALENDER 审中-公开
    高NIP负载CALENDER

    公开(公告)号:WO1997034046A1

    公开(公告)日:1997-09-18

    申请号:PCT/US1997002924

    申请日:1997-02-13

    CPC classification number: D21G1/0293 D21G1/00 D21G1/002

    Abstract: A calender employs an open-stack like arrangement with a single vertical beam (32) or support column on each end of the calender. In combination with the support beam (32), a special swing link (34) is used to support tension loads on the open side of the calender. The nip is thus straddled by structural members between the support column and the link. This combination has the ability to support high linear nip loads, as high as 2,500 PLI or higher. The link has pin connections (38, 44) at both ends so that when one pin is removed, the link can be swung open for roll removal or accessibility. Thus, the strength of the closed-stack calender is combined with the visibility and ease of access of the open-stack calender by the employment of tension links which replace one of the support columns utilized in a closed-stack calender.

    Abstract translation: 压光机采用开放堆叠式布置,在压延机的每一端都有单个垂直梁(32)或支撑柱。 与支撑梁(32)组合,使用特殊的摆动连杆(34)来支撑砑光机开口侧的张力。 因此,辊隙由支撑柱和连杆之间的结构构件跨接。 该组合具有支持高达2,500 PLI或更高的高线性压区负载的能力。 该连杆在两端都具有销钉连接(38,44),以便在拆下一个销时,链接可以打开以进行卷取或无障碍。 因此,通过使用替代在闭式砑光机中使用的支撑柱之一的张力连接,将闭式砑光机的强度与开式砑光机的可见性和易于访问相结合。

    OXYGEN DELIGNIFICATION OF MEDIUM CONSISTENCY PULP SLURRY
    115.
    发明申请
    OXYGEN DELIGNIFICATION OF MEDIUM CONSISTENCY PULP SLURRY 审中-公开
    中等一致性浆液的氧气定标

    公开(公告)号:WO1997020983A1

    公开(公告)日:1997-06-12

    申请号:PCT/US1996019742

    申请日:1996-11-18

    CPC classification number: D21C9/147 D21C9/1052

    Abstract: An improved process is described for oxygen delignification of medium consistency pulp slurry which teaches control parameters and their resultant effect on final product characteristics. Specifically, a process is described wherein pulp slurries of from approximately eight percent to sixteen percent consistency, are heated to a temperature of at least 170 DEG F and impregnated with oxygen gas and alkali to bring the slurry to a pH of from approximately 11-12.5. The slurry is mixed in a high shear mixer, for agitating mixing therein, under pressure of from approximately 20-180 psig for a first reaction time of typically 5 minutes. Additional alkali is added to the slurry to return the pH to at least 11, preferably at least 12, and the residual alkali concentration to at least 4.0 gpl at the end of the first reaction time. The temperature of the slurry is raised to at least 170 DEG F followed by mixing for a second reaction time of typically 55 additional minutes.

    Abstract translation: 描述了一种改进的方法,用于中等稠度纸浆的氧脱木质素,其教导控制参数及其对最终产品特性的影响。 具体地,描述了一种方法,其中将约8%至16%的稠度的浆浆浆加热至至少170°F的温度,并用氧气和碱浸渍以使浆料达到约11-12.5的pH 。 将浆料在高剪切混合器中混合,搅拌混合,在约20-180psig的压力下进行通常5分钟的第一反应时间。 在第一反应时间结束时,向浆液中加入额外的碱使pH值至少为11,优选至少12,残余碱浓度至少为4.0gp1。 将浆料的温度升至至少170°F,然后混合第二反应时间,通常为55分钟。

    CENTERWIND ASSIST FOR A PAPER WINDER SYSTEM
    116.
    发明申请
    CENTERWIND ASSIST FOR A PAPER WINDER SYSTEM 审中-公开
    用于纸张风机系统的中心配件

    公开(公告)号:WO1997013714A1

    公开(公告)日:1997-04-17

    申请号:PCT/US1996015120

    申请日:1996-09-16

    Abstract: A drive shaft is moved in a machine direction and a cross-machine direction to engage a spool on a winder. The drive shaft has an inner drive shaft which is elastically linked to an outer cylindrical shell, thereby allowing misalignment between the inner shaft and the outer shell and allows angular as well as horizontal and vertical displacement when the drive head engages the spool to provide centerwind assist to a roll of paper being formed thereon. The location of the drive shaft axis is determined at all times from geometric considerations and this data is used to position the drive shaft on the axis of the winding spool.

    Abstract translation: 驱动轴沿机器方向和跨机器方向移动以接合卷绕机上的线轴。 驱动轴具有内部驱动轴,该内部驱动轴弹性地连接到外部圆柱形壳体,从而允许内轴和外部壳体之间的未对准,并且当驱动头接合线轴时允许角度以及水平和垂直位移,以提供中心风辅助 到其上形成的一卷纸。 驱动轴的位置始终根据几何考虑因素决定,该数据用于将驱动轴定位在绕线轴的轴线上。

    PROCESS AND DEVICE FOR AUTOMATED FEED OF CORES IN REEL CUTTERS OF THE BACK-UP ROLLER TYPE
    117.
    发明申请
    PROCESS AND DEVICE FOR AUTOMATED FEED OF CORES IN REEL CUTTERS OF THE BACK-UP ROLLER TYPE 审中-公开
    方法和设备全自动套OUT IN SUPPORT辊式ROLL CUTTERS

    公开(公告)号:WO1997008088A1

    公开(公告)日:1997-03-06

    申请号:PCT/EP1996003699

    申请日:1996-08-22

    Abstract: In a process and device for automated feed of winding cores in a reel cutter of the back-up roller type, the winding cores (33) are advanced to the feed device (60) individually and placed in their transfer position, where they are delivered to one of the conveyors for the two take-up stations (40, 50) such that only one winding core (33) is situated in the feed device (60) and the winding cores (44, 54) for the two take-up stations (40, 50) are raised or lowered together into the clamping position and are clamped in by the take-up devices (41, 51) of the take-up station (40, 50). For this purpose the conveyor comprises core support beams (70, 80) for the two take-up stations (40, 50), which can be raised and lowered and which are equipped with retention members (71, 81) for the winding cores (44, 54). The core support beams (70, 80) are fitted with means (62) which in the advance position form the gutter (61) for a winding core (44, 54) of the core support beams (70, 80) for the two take-up stations (40, 50), in conjunction with the corresponding means (62) of the other core support beams (70, 80). The means (62) are designed in such a way that a winding core (44, 54) situated in the gutter can be transferred to the retention members (71, 81) of one or the other core support beams (70, 80).

    Abstract translation: 其特征在于一个自动卷取管供给的供给装置(60),在一种方法和装置用于自动供给卷绕套筒在辊切割,其中实现了卷芯(33)单独地输送背衬辊型,带至其接管位置,两个,其中一个的机 绕线工位(40,50)相关联的传输手段被传递,以便只有一个卷绕套筒(33)是在所述进给装置(60)和两个卷绕工位与卷绕套筒(44,54)相关联的所述一个(40,50)一起 升高或降低夹紧位置和由卷绕装置(41,51),所述卷绕工位(40,50)被夹紧。 为此目的,输送装置包括可升高和降下,与套筒支撑梁(70,80)相关联的两个卷绕工位(40,50),其设置有用于卷绕管(44,54)接收构件(71,81)。 在此,导纱杆是(70,80)在进料位置与套筒支撑梁(70,80)在合作与相应的装置相关联的两个卷绕工位(40,50)的卷绕套筒(44,54)设置有装置(62) (62)其他的套筒支撑梁(70,80)形成通道(61)的。 形成装置(62),使得位于一个的接收构件(71,81)或另一个套筒支撑梁(70,80)的所述通道(44,54)的绕线管可以被转移。

    METHOD FOR REPROCESSING AN OZONE-CONTAINING GAS PRESENT IN A PULP BLEACHING PLANT
    118.
    发明申请
    METHOD FOR REPROCESSING AN OZONE-CONTAINING GAS PRESENT IN A PULP BLEACHING PLANT 审中-公开
    在浆料漂白设备中代替含有臭氧的气体存在的方法

    公开(公告)号:WO1997006305A1

    公开(公告)日:1997-02-20

    申请号:PCT/US1996012776

    申请日:1996-08-06

    CPC classification number: D21C11/06 D21C9/153

    Abstract: A method for reprocessing an ozone-containing gas present in a pulp bleaching plant comprising the steps of supplying the ozone-containing gas to a scrubber and reducing the ozone concentration of the gas as the gas flows through the scrubber. The step of reducing comprises the steps of supplying an alkaline medium to the scrubber and flowing the ozone-containing gas in countercurrent relationship with the alkaline medium within the scrubber so as to provide intimate contact between the ozone-containing gas and the alkaline medium, thereby converting the ozone-containing gas into a substantially ozone-free gas. The alkaline medium may comprise one of the following: a sodium hydroxide solution; white liquor; post oxygen stage filtrate; weak black liquor; or filtrate from an Eo stage of the pulp bleaching plant. The method further comprises the step of separately discharging the ozone-containing gas and the alkaline medium from the scrubber. The ozone-containing gas may comprise an off-gas, which has been partially reacted with a pulp within a pulp bleaching stage or alternatively may comprise fresh bleaching gas, having an ozone concentration ranging from about 6 % to about 14 % by weight within a carrier gas, with the fresh bleaching gas being supplied directly from an ozone generator to the scrubber.

    Abstract translation: 一种用于再处理存在于纸浆漂白设备中的含臭氧气体的方法,包括以下步骤:当气体流过洗涤器时,将含臭氧的气体供给洗涤器并降低气体的臭氧浓度。 还原步骤包括以下步骤:向洗涤器供应碱性介质,并使含臭氧气体与洗涤器内的碱性介质呈逆流关系,从而提供含臭氧气体和碱性介质之间的紧密接触,从而 将含臭氧气体转化为基本上无臭氧的气体。 碱性介质可以包括以下之一:氢氧化钠溶液; 白酒 后氧阶段滤液; 弱黑液 或来自纸浆漂白设备的Eo阶段的滤液。 该方法还包括从洗涤器分离排出含臭氧气体和碱性介质的步骤。 含臭氧的气体可以包含废气,废气已经在纸浆漂白阶段中与纸浆部分反应,或者可以包含新鲜漂白气体,其中臭氧浓度范围为约6重量%至约14重量% 载气,新鲜漂白气体从臭氧发生器直接供应到洗涤器。

    METHOD AND APPARATUS FOR BLEACHING HIGH CONSISTENCY PULP WITH A GASEOUS BLEACHING REAGENT
    119.
    发明申请
    METHOD AND APPARATUS FOR BLEACHING HIGH CONSISTENCY PULP WITH A GASEOUS BLEACHING REAGENT 审中-公开
    用气相漂白试剂漂洗高度一致性浆液的方法和装置

    公开(公告)号:WO1997005324A2

    公开(公告)日:1997-02-13

    申请号:PCT/US1996012903

    申请日:1996-07-16

    CPC classification number: D21C9/14 D21C9/10 D21C9/153

    Abstract: A method and apparatus for bleaching hig consistency pulp with a gaseous bleaching reagent. The pulp is shredded and then fluffed in the presence of a contacting gas which includes the gaseous bleaching reagent within an upstream vessel (52) comprising a pin/foil contactor so as to suspend the pulp in the contacting gas and react the bleaching reagent with the pulp. The pulp is retained in the contactor for a predetermined time which is sufficient to consume about 75 % to about 90 % of a selected dose of the gaseous bleaching reagent which is required to delignify the high consistency pulp from an initial Kappa number to an intermediate Kappa number. The pulp and contacting gas are then separately supplied to a porous bed reactor where the reaction of the selected dose of the gaseous bleaching reagent with the pulp is substantially completed so as to further delignify the high consistency pulp from the intermediate Kappa number to a final Kappa number.

    Abstract translation: 一种用气态漂白剂漂白高浓度纸浆的方法和装置。 在包含引脚/箔接触器的上游容器(52)内包含气态漂白试剂的接触气体存在下,将纸浆切碎,然后起毛,以便将纸浆悬浮在接触气体中并使漂白试剂与 纸浆。 将纸浆保留在接触器中预定的时间,其足以消耗选择剂量的气态漂白试剂的约75%至约90%,其将高浓度纸浆从初始卡伯值脱木质化至中间体卡帕 数。 然后将纸浆和接触气体分别供应到多孔床反应器,其中选定剂量的气态漂白试剂与纸浆的反应基本上完成,以便将高稠度纸浆从中间体卡伯值进一步脱木素至最终的卡帕 数。

    WINDER WITH ELEVATED SPOOL SUPPORT RAIL
    120.
    发明申请
    WINDER WITH ELEVATED SPOOL SUPPORT RAIL 审中-公开
    WINDER带高架支撑轨道

    公开(公告)号:WO1996015059A1

    公开(公告)日:1996-05-23

    申请号:PCT/US1995010213

    申请日:1995-08-11

    Abstract: A winder in a papermaking machine has a frame (40) with horizontal rails (42) which are positioned above a rotatable reel support drum (34), which is fixedly mounted. As a relatively large diameter wound paper web reel, or jumbo, is formed on a spool riding on the rails, the surface of the jumbo remains tangent to the top of the support drum as the spool moves from a position vertically over the reel drum to a position laterally displaced horizontally along the rail. Centerwind drive(s) (36, 38) control spool torque. As the jumbo increases in size, it is moved linearly away from the initial position, while maintaining the paper web reel rotatively supported and in a nipping engagement with the support drum. Nip pressure between the support drum and the jumbo is controlled by the force of gravity and the horizontal positioning of the jumbo along the rails. The positioning of the jumbo along the rail may be controlled by a conventional pneumatic or hydraulic cylinder, or a screw mechanism. An alternative embodiment winder utilizes primary (121) and secondary arms (123) to position the jumbo and its spool along the reel rails.

    Abstract translation: 造纸机中的络纱机具有框架(40),该框架(40)具有水平导轨(42),其被定位在可旋转的卷轴支撑滚筒(34)的上方,其被固定地安装。 由于在卷绕在轨道上的卷轴上形成相对较大直径的缠绕纸幅卷轴或巨型卷轴,当卷轴从卷轴滚筒上垂直移动的位置时,巨型轮的表面保持与支撑滚筒的顶部相切, 横向沿着轨道横向移位的位置。 中风驱动(36,38)控制阀芯扭矩。 随着巨型尺寸的增加,它将从初始位置线性地移动,同时保持纸幅卷轴可旋转地支撑并与支撑滚筒夹紧接合。 支撑滚筒和巨型之间的压力由重力的作用力控制,并且巨型导轨沿着导轨的水平定位。 巨型物沿轨道的定位可以由传统的气动或液压缸或螺杆机构来控制。 替代实施例的卷绕机利用主(121)和次臂(123)来定位巨型及其卷轴沿着卷轴轨道。

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