Method and apparatus for making crystalline pet pellets
    3.
    发明申请
    Method and apparatus for making crystalline pet pellets 审中-公开
    制造结晶宠物颗粒的方法和设备

    公开(公告)号:US20070132134A1

    公开(公告)日:2007-06-14

    申请号:US11607123

    申请日:2006-12-01

    Applicant: Michael Eloo

    Inventor: Michael Eloo

    Abstract: A method and apparatus for underwater pelletizing and subsequent drying of polyethylene terephthalate (PET) polymers and other high temperature crystallizing polymeric materials to crystallize the polymer pellets without subsequent heating. High velocity air or other inert gas is injected into the water and pellet slurry line to the dryer near the pelletizer exit. The slurry line has a substantially straight component, and air is preferably injected at the end of the straight component nearest the pelletizer exit and in a direction substantially coincident with the axis of the straight component. The air injection significantly increases the speed of the pellets into and out of the dryer such that the PET polymer pellets leave the dryer above at least 135° C., and preferably above 145° C., to self-initiate crystallization.

    Abstract translation: 一种用于水中造粒和随后干燥聚对苯二甲酸乙二醇酯(PET)聚合物和其它高温结晶聚合物材料以使聚合物颗粒结晶而不后续加热的方法和装置。 将高速空气或其他惰性气体注入水中并将颗粒浆料管线注入造粒机出口附近的干燥器。 浆料线具有基本上直的部件,并且空气优选地在最靠近造粒机出口的直线部件的端部处并且在与直部件的轴线基本一致的方向上被注入。 空气注入显着地增加了颗粒进出干燥器的速度,使得PET聚合物颗粒使干燥器离开至少135℃,优选高于145℃以自发起结晶。

    Centrifugal Pellet Dryer Screen
    5.
    发明申请
    Centrifugal Pellet Dryer Screen 审中-公开
    离心式造粒干燥机

    公开(公告)号:US20090126216A1

    公开(公告)日:2009-05-21

    申请号:US11793691

    申请日:2005-12-20

    CPC classification number: F26B17/24

    Abstract: A centrifugal pellet dryer screen (540) especially adapted for drying polymer pellets and micropellets includes an exterior or outer support screen (542), an inner screen (546) of an irregular or rough surface, and an optional middle screen(s) (544) sandwiched between the outer support screen and the inner screen. The screen layers are in intimate contact and the multi-layer screen assembly produces drier pellets and micropellets exiting the dryer. Plugging of the dryer screens and banding of the pellets or micropellets are significantly reduced.

    Abstract translation: 特别适于干燥聚合物颗粒和微丸的离心沉淀干燥器筛(540)包括外部或外部支撑筛(542),不规则或粗糙表面的内部筛网(546)和可选的中间筛网(544) )夹在外部支撑屏幕和内部屏幕之间。 筛网层紧密接触,多层筛网组件产生干燥颗粒和离开烘干机的微粒料。 干燥器筛网的堵塞和丸粒或微丸的捆扎显着减少。

    Sectioned adjustable water flow guide for pelletizer
    6.
    发明授权
    Sectioned adjustable water flow guide for pelletizer 失效
    用于造粒机的分段可调节水流导向器

    公开(公告)号:US06925741B2

    公开(公告)日:2005-08-09

    申请号:US10282095

    申请日:2002-10-29

    CPC classification number: B29B9/065 Y10S425/23

    Abstract: An adjustable sectioned water flow guide stationarily mounted in the water box of an underwater pelletizer to adjust the flow of pressurized water through the water box in order to accommodate a range of variable process requirements, such as pellet size, water flow, water temperature, melt flow, etc., while preventing pellet distortion and die hole freezing. The length and surface configuration of the water flow guide may be readily adapted through selection of an appropriate number of grooved or ungrooved sections to optimize fluid flow for particular pelletizer applications.

    Abstract translation: 固定安装在水下造粒机的水箱中的可调剖式水流引导器,以调节通过水箱的加压水流,以适应一系列可变过程要求,例如颗粒尺寸,水流量,水温,熔体 流动等,同时防止颗粒变形和模孔冻结。 水流引导件的长度和表面结构可以通过选择合适数量的槽形或未槽形部分来容易地适应,以优化特定造粒机应用的流体流动。

    Filtration device
    7.
    发明授权

    公开(公告)号:US09962634B2

    公开(公告)日:2018-05-08

    申请号:US13880480

    申请日:2010-10-22

    CPC classification number: B01D33/461 B01D33/04

    Abstract: A filtration apparatus for filtering and separating solids from liquids is provided that includes at least one liquid-permeable, continuously or intermittently drivable filter belt, an intake for charging the liquid/solid mixture to be filtered onto the filter belt in a charging zone and a belt cleaner for removing the solids deposited at the filter belt from a belt section conveyed out of the charging zone in an expulsion zone. The belt cleaner has at least one rotatingly drivable brush with which a brush cleaner having a scraper is associated which is arranged in the path of the bristles of the rotating brush. The rotating brush efficiently removes the deposited solids from the filter belt, while the scraper of the brush cleaner simultaneously ensures that the dissolved solids do not settle at the brush and clog it.

    Pelletizing device and blade head and/or grinding head for such a pelletizing device
    8.
    发明授权
    Pelletizing device and blade head and/or grinding head for such a pelletizing device 有权
    用于这种造粒装置的造粒装置和刀片头和/或研磨头

    公开(公告)号:US09079333B2

    公开(公告)日:2015-07-14

    申请号:US12734337

    申请日:2008-08-11

    CPC classification number: B29B9/06 B26D1/16 B29B9/065

    Abstract: A pelletizer, preferably in the form of an underwater pelletizer, having a cutter and/or grinding head and a tool carrier is provided. The tool carrier can rotatably be driven about a tool carrier axis of rotation, and at least one cutting and/or grinding tool, which is attached to the tool carrier and is spaced from the tool carrier axis of rotation, is used to knock off plastic melt emerging from a pelletizer die plate and/or for grinding the pelletizer die plate. In one embodiment, the cutting and/or grinding tool rotates together with the tool carrier about its tool carrier axis of rotation, and in another embodiment, the cutting and/or grinding tool can rotate about its own axis of rotation relative to the tool carrier.

    Abstract translation: 提供了具有切割器和/或研磨头和工具架的优选为水下造粒机形式的造粒机。 工具托架可以围绕工具托架的旋转轴线旋转地被驱动,并且至少一个连接到工具托架并与工具托架旋转轴线间隔开的切割和/或研磨工具被用于击倒塑料 从造粒机模板和/或用于研磨造粒机模板的熔体熔化。 在一个实施例中,切割和/或研磨工具与工具托架围绕其工具托架的旋转轴线一起旋转,并且在另一个实施例中,切割和/或研磨工具可围绕其自身的相对于刀架的旋转轴线旋转 。

    Method and apparatus for making crystalline polymeric pellets and granules
    10.
    发明申请
    Method and apparatus for making crystalline polymeric pellets and granules 有权
    制备结晶聚合物颗粒和颗粒的方法和设备

    公开(公告)号:US20090134537A1

    公开(公告)日:2009-05-28

    申请号:US11920698

    申请日:2006-05-24

    Abstract: A method and apparatus for underwater pelletizing and subsequent drying of crystallizing polymers to crystallize the polymer pellets without subsequent heating is shown in FIG. 5. High velocity air or other inert gas is injected into the water and pellet slurry line (120) toward the dryer near the pelletizer exit (102) at a flow rate of from about 100 to about 175 m3/hour, or more. Such high-speed air movement forms a vapor mist with the water and significantly increases the speed of the pellets into and out of the dryer such that the polymer pellets leave the dryer with sufficient latent heat to cause self-crystallization within the pellets. A valve mechanism in the slurry line (150) after the gas injection further regulates the pellet residence time and a vibrating conveyor after the dryer helps the pellets to achieve the desired level of crystallinity and to avoid agglomeration.

    Abstract translation: 用于水下造粒和随后干燥结晶聚合物以使聚合物颗粒结晶而不后续加热的方法和装置如图1所示。 高速空气或其他惰性气体以约100至约175m 3 /小时或更高的流速向造粒机出口(102)附近的水和颗粒浆料管线(120)中朝向干燥器注入。 这种高速空气运动与水形成蒸汽雾,并且显着地增加了颗粒进出干燥器的速度,使得聚合物颗粒离开干燥器具有足够的潜热以在颗粒内引起自结晶。 在气体注入之后的浆液管线(150)中的阀机构进一步调节颗粒停留时间,并且干燥器之后的振动输送机帮助颗粒达到期望的结晶度并避免结块。

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