Method and Device for Granulating Plastics and/or Polymers

    公开(公告)号:US20090115091A1

    公开(公告)日:2009-05-07

    申请号:US11884462

    申请日:2006-02-15

    Abstract: The present invention relates to a method for the pelletization of plastics and/or polymers, wherein a melt coming from a melt generator is supplied via a diverter valve having different operating positions to a plurality of pelletizing heads through which the melt is pelletized. The invention furthermore relates to a pelletizing apparatus for the pelletization of plastics and/or polymers having a diverter valve which has at least one melt generator connection, at least two pelletizer connections as well as a switching gate for selectively connecting the melt generator connection to at least one of the pelletizer connections, with a respective pelletizing head being connected to the at least two pelletizer connections and a melt generator having a variable melt volume flow being connected to the melt generator connection. Finally, the invention also relates to a diverter valve for such a pelletizing apparatus having a melt generator connection, a pelletizer connection as well as a melt passage for the connection of the melt generator connection to the pelletizer connection. The present invention therefore starts from the idea of using a plurality of pelletizing heads with different passage capacities and of hereby enlarging the throughput window to be able to work largely continuously without intermediate interruptions and to shorten unavoidable start-up processes by switching in pelletizing heads having small throughput capacities or to minimize them with respect to the start-up products which occur. In accordance with an aspect of the present invention, a plurality of pelletizing heads having different throughput capacities are used sequentially for the start-up of the pelletizing process, with the melt first being supplied to a first pelletizing head having a smaller throughput capacity and then the melt volume flow being increased and the diverter valve being switched over such that the melt is diverted by the diverter valve to a second pelletizing head having a larger throughput capacity. The time and thus the amount of the start-up product until the melt generator reaches the lower throughput limit of the pelletizing head and the pelletizing process can be started are cut by the use of initially one pelletizing head having a throughput capacity which is as low as possible. No further start-up product is incurred from the start onwards of the pelletizing process at the lower throughput limit of the said first pelletizing head. The melt volume flow is increased quantitatively for so long until the diverter valve can be switched to the second pelletizing head having the larger throughput capacity with no start-up product being incurred during this time period. Moreover, the throughput window is enlarged in total so that the number of unavoidable start-up procedures with start-up product arising therein is reduced since it is possible, on a ramping down of the melting performance below the lower throughput limit of the larger pelletizing head which may become necessary for various reasons, to switch back to the first pelletizing head.

    Underwater pelletizer with positively controlled cutter HUB
    12.
    发明授权
    Underwater pelletizer with positively controlled cutter HUB 有权
    水下造粒机带有精确控制的刀具HUB

    公开(公告)号:US07033152B2

    公开(公告)日:2006-04-25

    申请号:US10434357

    申请日:2003-05-09

    CPC classification number: B29B9/065

    Abstract: A cutter hub and blade assembly supported and driven for rotational and axial movement in relation to the die face of a die plate in an underwater pelletizer including a positive control of such axial movement to obtain and maintain optimal axial position of the cutter hub and blades during the pelletizing operation and to minimize wear of the mechanical components involved. Positive control of the axial movement of the cutter hub and blades is obtained by a hydraulic/pneumatic actuation system controlling an elongated motion rod that extends through a driven hollow motor shaft. One end of the motion rod is connected with a hydraulic/pneumatic control and the other end of the rod is connected to a cutter hub holder that supports the cutter hub and blades for axial movement toward or away from the die face.

    Abstract translation: 支撑和驱动的切割轮毂和叶片组件,用于在水下造粒机中相对于模板的模具面进行旋转和轴向移动,包括这种轴向运动的积极控制,以获得并保持切割轮毂和叶片的最佳轴向位置 造粒操作并使所涉及的机械部件的磨损最小化。 通过控制延伸穿过被驱动的空心电动机轴的细长运动杆的液压/气动致动系统获得对切割轮毂和叶片的轴向运动的积极控制。 运动杆的一端与液压/气动控制器连接,杆的另一端连接到支撑切割轮毂和刀片的切割轮毂保持器,用于朝向或远离模具面轴向移动。

    Filtration device
    13.
    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
    14.
    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
    15.
    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。

    Method and apparatus for making crystalline PET pellets
    16.
    发明申请
    Method and apparatus for making crystalline PET pellets 有权
    制造结晶PET颗粒的方法和设备

    公开(公告)号:US20050110184A1

    公开(公告)日:2005-05-26

    申请号:US10717630

    申请日:2003-11-21

    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。

    PELLETIZING DEVICE AND BLADE HEAD AND/OR GRINDING HEAD FOR SUCH A PELLETIZING DEVICE
    18.
    发明申请
    PELLETIZING DEVICE AND BLADE HEAD AND/OR GRINDING HEAD FOR SUCH A PELLETIZING DEVICE 有权
    用于这种装置的柔性装置和叶片头和/或研磨头

    公开(公告)号:US20100255135A1

    公开(公告)日:2010-10-07

    申请号:US12734337

    申请日:2008-08-11

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

    Abstract: The present invention relates to a pelletizer, preferably in the form of an underwater pelletizer. In particular, this invention relates to a cutter and/or grinding head for such pelletizer, comprising a tool carrier which can rotatorily 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, for knocking off plastic melt emerging from a pelletizer die plate and/or for grinding said pelletizer die plate. In accordance with the invention, the cutting and/or grinding tool is rotatably mounted on the tool carrier about an axis of rotation spaced from the tool carrier axis of rotation. This provides a second component of movement for the cutting and/or grinding tool. On the one hand, the cutting and/or grinding tool rotates together with the tool carrier about its tool carrier axis of rotation, and on the other hand, the cutting and/or grinding tool can rotate about its own axis of rotation relative to the tool carrier. The tool carrier has a pivot bearing for the cutting and/or grinding tool, by means of which the cutting and/or grinding tool can rotate about itself.

    Abstract translation: 造粒机本发明涉及造粒机,优选为水下造粒机的形式。 特别地,本发明涉及一种用于这种造粒机的切割器和/或研磨头,包括可围绕工具架旋转轴线旋转地移动的工具托架,以及至少一个切割和/或研磨工具,其连接到 工具托架并与工具托架的旋转轴线间隔开,用于敲击从造粒机模具板排出的塑料熔体和/或用于研磨所述造粒机模具板。 根据本发明,切割和/或研磨工具围绕与工具架旋转轴线间隔开的旋转轴线可旋转地安装在工具架上。 这为切割和/或研磨工具提供了第二移动部件。 一方面,切割和/或研磨工具围绕其工具架的旋转轴线与工具架一起旋转,另一方面,切割和/或研磨工具可以围绕其自身的旋转轴线相对于 刀架 工具托架具有用于切割和/或研磨工具的枢转轴承,借助于该工具,切割和/或研磨工具可绕其自身旋转。

    Method and apparatus for making crystalline pet pellets
    19.
    发明申请
    Method and apparatus for making crystalline pet pellets 有权
    制造结晶宠物颗粒的方法和设备

    公开(公告)号:US20090028975A1

    公开(公告)日:2009-01-29

    申请号:US12081903

    申请日:2008-04-23

    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. Air is injected into the slurry line at a velocity 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 PET polymer pellets leave the dryer at a temperature sufficient to self-initiate crystallization within the pellets. A valve mechanism in the slurry line 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: 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。 空气以约100至约175m 3 /小时或更高的速度注入浆料管线。 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PET聚合物颗粒离开干燥器足以在颗粒内自引发结晶的温度。 在气体注入之后的浆料管线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。

    Method and apparatus for making crystalline PET pellets
    20.
    发明授权
    Method and apparatus for making crystalline PET pellets 有权
    制造结晶PET颗粒的方法和设备

    公开(公告)号:US07157032B2

    公开(公告)日:2007-01-02

    申请号:US10717630

    申请日:2003-11-21

    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。

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