Leakage control system for treatment of moving webs

    公开(公告)号:US06579418B2

    公开(公告)日:2003-06-17

    申请号:US09899314

    申请日:2001-07-05

    IPC分类号: D21F300

    CPC分类号: D21F5/18 D21F1/48 D21F3/0272

    摘要: Pressurized web treatment systems include a moving web that passes through a pressurized treatment chamber having a sealing assembly with a leakage control system. Leakage control is achieved by the cooperative effect of localized leak detectors and leak reduction means that applies a local sealing force on the seal assembly responsive to a signal from the leak detectors such that increased sealing occurs in the vicinity of the leak. In particular, an air press for paper web dewatering has improved efficiency by virtue of the leakage control system, which features local leak detectors and local force generation means associated with a flexible seal assembly to reduce leakage at the edges of the stationary plenum of the air press. Local leak detection can be based on sonic measurement with microphones, detection of escaping tracer gas, optical signals, and other means. Other embodiments of web treatment systems include those for continuous production of activated carbon fabrics and steam and chemical treatment of textiles and other fibrous webs.

    Leakage control system for treatment of moving webs
    2.
    发明授权
    Leakage control system for treatment of moving webs 失效
    用于处理移动腹板的泄漏控制系统

    公开(公告)号:US06280573B1

    公开(公告)日:2001-08-28

    申请号:US09133064

    申请日:1998-08-12

    IPC分类号: D21F300

    CPC分类号: D21F5/18 D21F1/48 D21F3/0272

    摘要: Pressurized web treatment systems include a moving web that passes through a pressurized treatment chamber having a sealing assembly with a leakage control system. Leakage control is achieved by the cooperative effect of localized leak detectors and leak reduction means that applies a local sealing force on the seal assembly responsive to a signal from the leak detectors such that increased sealing occurs in the vicinity of the leak. In particular, an air press for paper web dewatering has improved efficiency by virtue of the leakage control system, which features local leak detectors and local force generation means associated with a flexible seal assembly to reduce leakage at the edges of the stationary plenum of the air press. Local leak detection can be based on sonic measurement with microphones, detection of escaping tracer gas, optical signals, and other means. Other embodiments of web treatment systems include those for continuous production of activated carbon fabrics and steam and chemical treatment of textiles and other fibrous webs.

    摘要翻译: 加压网处理系统包括通过具有泄漏控制系统的具有密封组件的加压处理室的移动网。 通过局部泄漏检测器和泄漏减少装置的协同效应来实现泄漏控制,泄漏检测器和泄漏减小装置响应于来自泄漏检测器的信号对密封组件施加局部密封力,使得在泄漏附近发生增加的密封。 特别地,用于纸幅脱水的空气压榨机通过泄漏控制系统提高了效率,泄漏控制系统具有局部泄漏检测器和与柔性密封组件相关联的局部力产生装置,以减少空气的固定气室的边缘处的泄漏 按。 本地泄漏检测可以基于用麦克风进行声波测量,检测出示踪气体,光信号等手段。 网处理系统的其它实施例包括用于连续生产活性炭织物和蒸汽的那些实施方案,以及织物和其它纤维网的化学处理。

    Apparatus and method for dewatering a fabric
    6.
    发明授权
    Apparatus and method for dewatering a fabric 失效
    织物脱水的装置和方法

    公开(公告)号:US07452446B2

    公开(公告)日:2008-11-18

    申请号:US11252522

    申请日:2005-10-18

    IPC分类号: D21F1/32

    摘要: A fabric dewatering apparatus for use after a fabric cleansing apparatus in a paper machine including: an endless wicking substrate disposed for rotation about a dryer roll; the endless wicking substrate and the fabric brought into surface contact as the fabric traverses at least a portion of the dryer roll's circumference; and a wicking substrate dewatering apparatus disposed along the wicking substrate's travel path after the dryer roll.

    摘要翻译: 一种织物脱水装置,用于在造纸机中织物清洁装置之后使用的织物脱水装置,包括:环绕芯吸基材,设置成围绕烘干辊旋转; 当织物穿过干燥器辊的圆周的至少一部分时,无端芯吸基底和织物进入表面接触; 以及在干燥器辊之后沿着芯吸基板的行进路径设置的芯吸基板脱水装置。

    Tissue sheets having good strength and bulk
    7.
    发明申请
    Tissue sheets having good strength and bulk 有权
    组织片具有良好的强度和体积

    公开(公告)号:US20080271862A1

    公开(公告)日:2008-11-06

    申请号:US12218468

    申请日:2008-07-15

    IPC分类号: D21H27/00

    摘要: A method of making soft, strong, high bulk tissue is disclosed. The method includes pre-conditioning a wet web by straining the wet web in the cross-machine direction prior to transferring the wet web to a throughdrying fabric. The pre-conditioned web provides improved sheet softness and conforms more readily to the surface contour of the throughdrying fabric, thereby creating greater caliper (bulk) in the resulting dried sheet. The bulk is maintained during a subsequent creping step by maintaining the dried sheet in registration with the throughdrying fabric when the dried sheet is applied to the surface of the creping cylinder.

    摘要翻译: 公开了一种制造软,强,高体积组织的方法。 该方法包括在将湿网状物转移到穿透干燥织物之前,通过在横向方向上拉紧湿纸幅预湿湿纸幅。 预处理织物提供了改善的片材柔软度并且更容易地符合穿透干燥织物的表面轮廓,从而在得到的干燥片材中产生更大的厚度(本体)。 当干燥的片材施加到起皱圆筒的表面时,通过将干燥的片材与穿透干燥织物保持对齐,在随后的起皱步骤期间保持体积。

    Method for making tissue sheets on a modified conventional wet-pressed machine
    9.
    发明授权
    Method for making tissue sheets on a modified conventional wet-pressed machine 有权
    在改进的常规湿式压榨机上制造薄页纸的方法

    公开(公告)号:US06497789B1

    公开(公告)日:2002-12-24

    申请号:US09607711

    申请日:2000-06-30

    IPC分类号: D21F1100

    摘要: A tissue sheet is made using a modified wet pressing machine in a modified wet pressing process employing an integrally sealed air press. After initial formation and conventional vacuum dewatering, the wet web is conformed to the surface contour of a relatively coarse fabric to give the web a textured surface. By creating a pressure differential across the web of at least 30 inches of mercury and an air stream through the web of at least 500 SCFM/in2, the air press noncompressively dewaters the wet web to a consistency of about 30 to about 40 percent prior to a heated drying cylinder. The web is dried to substantially preserve its three-dimensional, throughdried-like texture. The process provides a web having an exceptionally high degree of bulk and absorbency not expected in wet-pressed products.

    摘要翻译: 使用改进的湿式压制机,采用整体密封的空气压榨机进行改进的湿式压制方法制成薄页纸。 在初始形成和常规真空脱水之后,湿纸幅与相对粗糙的织物的表面轮廓一致,以使纸幅具有纹理表面。 通过在整个幅材上形成至少30英寸汞柱的压差和通过幅材的至少500SCFM / in2的空气流,空气压榨机将湿纸幅压缩脱水至约30%至约40%的稠度,然后 加热干燥筒。 将纸幅干燥以基本上保持其三维,通过干燥状的纹理。 该方法提供了在湿压制品中不期望的非常高的体积和吸光度的网。

    Method for making tissue sheets on a modified conventional crescent-former tissue machine
    10.
    发明授权
    Method for making tissue sheets on a modified conventional crescent-former tissue machine 有权
    用于在改良的常规新月形织机上制备薄片的方法

    公开(公告)号:US06454904B1

    公开(公告)日:2002-09-24

    申请号:US09607712

    申请日:2000-06-30

    IPC分类号: D21F1100

    摘要: A tissue sheet is made using a modified wet pressing process employing an integrally sealed air press. After initial formation and conventional vacuum dewatering, the wet web may be conformed to the surface contour of a relatively coarse fabric to give the web a textured surface. By creating a pressure differential across the web, the air press noncompressively dewaters the wet web to a consistency of about 30 to about 40 percent prior to a heated drying cylinder. The web may be dried to substantially preserve its three-dimensional, throughdried-like texture. The process provides a web having an exceptionally high degree of bulk and absorbency not expected in wet-pressed products.

    摘要翻译: 使用采用整体密封的空气压机的改进的湿压法制成薄页纸。 在初始形成和常规真空脱水之后,湿纸幅可以与相对粗糙的织物的表面轮廓一致,以使纸幅具有纹理表面。 通过在纸幅上形成压力差,空气压榨机在加热的干燥筒之前将湿纸幅非压缩性脱水至约30%至约40%的稠度。 纤维网可以被干燥以基本上保持其三维的,通过干燥的纹理。 该方法提供了在湿压制品中不期望的非常高的体积和吸光度的网。