• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a device for processing feed material, in particular for cleaning pre-shredded, film-shaped feed material, with a disk (9) rotating about an axis (7) within a housing (4), on whose front side first processing tools (10) are concentric with the axis (FIG. 7) are arranged and with this axial distance while maintaining a working gap (19) arranged second processing tools (18), wherein the feed material by means of a feeder (24) axially in a centrally in the housing (4) existing mixing gap (21) is abandoned and after Deflection in a radial direction through the working gap (19) flows through, wherein mixing gap (21) and working gap (19) form an agitation zone for the treatment of the feed, wherein the device has a supply means for a liquid with at least one outlet nozzle (31, 32) enters the agitation zone.
    公开号:AT14558U1
    申请号:TGM353/2014U
    申请日:2014-10-09
    公开日:2016-01-15
    发明作者:
    申请人:Pallmann Kg Maschf；
    IPC主号:
    专利说明:

    Description: [0001] The invention relates to a device for processing feedstock, in particular for cleaning pre-shredded, film-shaped feedstock, according to the preamble of claim 1 and a corresponding method according to the preamble of claim 14.
    In view of increasingly scarce resources, the treatment and recycling of valuable substances contained in the waste into the production cycle is increasingly gaining ground. The prerequisite for a high-quality reuse of the material obtained in the course of the treatment is that it is largely free of contaminants and adhesions such as labels, adhesive residues, sand, oil and other liquids, etc. The aim of the treatment of the feedstock is therefore to Adherent foreign matter from recyclable material.
    For the recycling of waste plastics, for example from DE 10 2006 054 770 A1, a method and a device are known in which pre-shredded plastic flakes are mixed with water and fed by means of a solids pump as a suspension to a toothed disc refiner. In the Mahl¬zone formed by axially opposing refining discs, the plastic flakes are ground, thereby releasing adhering pulps and other impurities from the plastic. After subsequent mechanical dewatering of the suspension, pulp and plastic are separated.
    As a disadvantage, it turns out the mixing of the plastic flakes and the water ineinem container before their promotion to Zahnscheibenrefiner. The solids content of the zufördernden suspension is usually between 20 wt .-% and 30 wt .-%, so that the relative to the solids content pumping power is relatively high and due to the associated energy requirements, an economic operation is basically in question. At the same time, the solids content of the suspension fed to the refiner is difficult to control, with the result that the suspension fed to the toothed disc refiner has very variable solids contents. The unsteady initial conditions during material processing adversely affect the quality of the material conditioning and the hydrodynamic pump action exerted by the rotating refiner disk.
    Against this background, the object of the invention is to provide an improved device and an improved method for processing feedstock.
    This object is achieved by a device having the features of the protection claim 1, as well as a method having the features of the protection claim 14.
    Advantageous embodiments will be apparent from the dependent claims.
    The basic idea of the device is to feed the feedstock and the liquid into the agitation zone in separate streams where they are mixed together and treated as a substantially solid phase and liquid phase. This does not exclude that liquid is added to the feedstock even before it enters the agitation zone, but to a small extent that the solids content does not fall below 75% by weight. This allows extremely efficient feeding of the feed to the agitation zone and precise adjustment of the mixing ratio of solids to liquid in the agitation zone within limits. The framework conditions for the treatment of the feed in the Agitati¬onszone thus remain constant, which ultimately leads to a consistently high quality of the product obtained in the course of treatment.
    The invention will be explained in more detail below with reference to an exemplary embodiment illustrated in the figures, wherein further features and advantages of the invention are disclosed.
    [0011] FIG. 1 shows a schematic view of a treatment plant with a device according to the invention, [0012] FIG. 2 shows a longitudinal section through the device shown in FIG. 1 in a larger scale
    And Fig. 3 is a flowchart illustrating the process flow.
    Figure 1 shows a system for the preparation of pre-shredded sheet-shaped Aufga¬begut means of a device according to the invention in the form of a Scheibenrefiners 1. Theanlage includes a dosing bunker 2 for storage with dry feed and a filled with a liquid tank 3. The feed is, for example pre-shrunk plastic flakes formed with a size of about 10 mm to 30 mm; the liquid is water, optionally supplemented by additives to provide improved conditioning. The disc refiner 1 is fed with feedstock from the metering hopper 2 and with liquid from the tank 3. To facilitate a modular combination with other plant components, both the disc refiner 1 and metering hopper 2 and tank 3 are integrated into a transportable frame structure 37 of steel profiles.
    As can be seen from Figures 1 and in particular from Figure 2, the Scheibenre¬finer 1 has a cylindrical housing 4, the rear wall 5 is held by a shaft bearing 6, which in turn integrates firmly into the frame structure 37. The shaft bearing 6 serves to rotatably receive a shaft 8 rotating about a horizontal axis 7. The shaft 7 extends through a centric opening in the rear wall 5 and, with its end located inside the housing 4, carries a refiner disc 9 fixed against rotation on the shaft end End of the shaft 8 is coupled to a rotary drive 23.
    On the rear wall 5 facing away from the front side Refinerscheibe 9 are arranged in the äuße¬ren peripheral region concentric with the axis 7 first processing tools 10, extending in the axial direction from the front of the refiner disc 9, on several concentric circumferential circles with respect to the axis 7 arranged teeth 11th
    The axis 7 immediately surrounding the central region of the refining disc 9 is formed by a conical deflecting plate 12, the tip of which rises in the axis 7 from the Refi¬nerscheibe 9 out and whose coat is fitted with strips 13, extending from the Spit¬ ze to the peripheral region of the baffle 12 extend. On the outer circumference of the Refinerscheibe9 first radially extending wings 14 are arranged at a uniform circumferential distance, which develop a pumping action in the course of the rotation of the Refinerscheibe 9. At the back of the Refinerscheibe 9 also sees second wing 15, which also support the pumping action of the rotating Refinerscheibe 9.
    The front wall of the housing 4 is formed by a housing door 16 which is pivotable about a vertical axis to ensure access to the housing interior. In the housing door 16, an opening 7, which is centric to the axis 7, is provided, via which the loading of the device 1 with feed material and liquid takes place. On the inside of the housing door 16, second fixed machining tools 18 are grouped around the opening 17, which are opposite the first machining tools 10 at an axial distance, forming a working gap 19. Also, the second processing tools 18 have axially extending teeth 20 which are arranged in concentric circles. By a Radia¬len offset of the teeth 11 of the first processing tools 10 relative to the teeth 20 of the second processing tools 18, a meshing arrangement of the first processing tools 10 and second processing tools 18 is possible.
    Housing door 16 and baffle 12 form a mixing gap 21, which forms together with the working gap 19 an agitation zone, in which the treatment of the mixture of feed and liquid takes place. By axial adjustment of the refiner 9, the Weitedes the working gap 19 and thus the intensity of the preparation of the feed is adjustable.
    To the central opening 17 of the housing door 16 includes a feeder 24 in the form of a screw conveyor, the coaxial worm shell 25 is fixedly connected to the housing door 16. The feeder 24 thus opens the baffle plate 12 gegenŸberliegend at the height of the axis 7 in the mixing gap 21. The worm shell 25 receives a coaxially extending worm shaft 26, whose within the screw shell 25 befind portion has a rotating conveyor coil 27 and the outboard Ab  section is coupled to a rotary drive 28. The worm shaft 26 is formed as a hollow shaft, whose one end opens centrally into the mixing gap 21 and the other end is acted upon with liquid.
    The feeding of the screw conveyor 24 via a feed slot 29 in the snail jacket 25, which is fed from the dosing bunker 2 by means of a metering device 30 in the form of a metering screw with feed material. To facilitate material transport, small amounts of liquid may be added to the feed material in the area of the metering device 30, but the solids content remains above 90% by weight, preferably above 95% by weight. A further supply of liquid may take place in the area of the feed device 24, the solids content of the material stream before entering the agitation zone being at least 75% by weight, preferably at least 80% by weight.
    In order to deliver the feed material, which in this way is substantially dry to the disk refiner 1, to the processing tools 10 and 18 with the liquid stored in the tank 3 in a predetermined mixing ratio, the disk refiner 1 has a plurality of nozzles which enter the mixing gap 21 lead. A first nozzle 31 is formed from the end of the hollow screw shaft 26. Another eight nozzles 32 are arranged concentrically in a uniform Um¬fangsabstand around the opening 17 in the housing door 16. The nozzles 31 and 32 are fed with liquid from the tank 3 via a line system 33, a pump 34 providing the required pressure. Via the valves 35 and 36, the supplied amount of liquid via the nozzles 31 and 32 can be set differentiated. In addition, one or more further nozzles may be arranged on the rear wall 5, through which liquid is conveyed to the interior of the housing 4, where it mixes with the flow of material leaving the working gap 19. After supply of the liquid via the nozzles 31 and 32, the solids content of the material stream is a maximum of 20 wt .-%, preferably at most 12 wt .-%, wherein the minimum solids content is preferably at least 1 wt .-%.
    Already in the mixing gap 21, where an intensive mixing of the feed with the liquid takes place, but especially in the region of the working gap 10 strong frictional forces act on the feed material, which are responsible for a detachment of foreign substances from the surface of the feed. As a result of the addition of liquid according to the invention in the region of the agitation zone, the feed material remains essentially undiminished during its passage through the working gap, which has an advantageous effect on the subsequent process steps.
    After the radial exit from the working gap, the processed feedstock and the liquid laden with foreign matter are guided tangentially out of the slab refiner 1 via the outlet 22 and subjected to mechanical dehydration, for example in a centrifuge, where the separation and thus recovery of foreign substances freed Auf¬gabeguts from the rest of the material flow takes place.
    Figure 3 illustrates the sequence of the method according to the invention with reference to a Flußdia¬gramms. It can be clearly seen the two initially separate streams of material (feed / liquid), which are brought together only in the agitation zone.
    权利要求:
    Claims (16)
    [1]
    Claims 1. A device for processing of feed material, in particular for cleaning vorzerklei¬ nertem, foil-shaped feed, with a within a housing (4) about an axis (7) rotating disc (9), on the front side first processing tools (10) kon¬ are arranged centrally with respect to the axis (7) and with second processing tools (18) arranged at an axial distance while maintaining a working gap (19), wherein the feed material is fed axially by means of a feed device (24) into a mixing gap (21) provided centrally in the housing (4) and, after being deflected in a radial direction, through the working gap (19), wherein mixing gap (21) and working gap (19) form an agitation zone for processing the feed, characterized in that the device has a liquid supply means with at least one outlet nozzle (31, 32) leading to the agitation zone and the apparatus having a plurality of fluid nozzles (32) of which at least a part is arranged concentrically around the axis (7) and opens into the agitation zone.
    [2]
    2. Device according to claim 1, characterized in that the solids content of the feedstock prior to its entry into the agitation zone is at least 75 wt .-%, preferably at least 80 wt .-%.
    [3]
    3. Apparatus according to claim 1 or 2, characterized in that the solids content of the feed material after supply of the liquid in the agitation zone a maximum of 20 wt .-% be¬trägt, preferably at most 15 wt .-%.
    [4]
    4. Device according to one of claims 1 to 3, characterized in that the min¬destens an outlet nozzle (31) coaxial with the axis (7) opens into the agitation zone, preferably in the mixing gap (21).
    [5]
    5. The device according to claim 4, characterized in that the feed device (24) is formed for the feed material from a feed screw, the worm shaft (26) is designed as a hollow shaft, the end of which forms the at least one outlet nozzle (31).
    [6]
    A device according to any one of claims 1 to 5, characterized in that the part of the plurality of fluid nozzles (32) arranged concentrically about the axis (7) opens into the mixing gap (21).
    [7]
    7. Device according to one of claims 1 to 6, characterized in that the Vor¬richtung has at least one further fluid nozzle for introducing liquid into the Gehäuse¬innere, wherein the at least one further fluid nozzle on the rear wall of the Gehäu¬ses (4) is arranged.
    [8]
    Device according to any one of Claims 1 to 7, characterized in that the mixing gap (21) is delimited by a deflecting disc (12) opposite the feeding means (24), which preferably has a conical shape.
    [9]
    9. Device according to one of claims 1 to 8, characterized in that the mixing gap (21) widens axially in the flow direction.
    [10]
    10. Apparatus according to claim 8 or 9, characterized in that the deflecting disc (12) about the axis (7) is rotated and equipped with strips (13), from the center of Um¬lenkscheibe (12) in the direction of the outer periphery of the deflection disc (12).
    [11]
    11. Device according to one of claims 1 to 10, characterized in that the disc (9) has at its outer periphery and / or its rear side substantially radially extending wings (14, 15).
    [12]
    12. The device according to one of claims 1 to 11, characterized in that the first processing tools (10) and second processing tools (18) axially in the working gap (19) extending and intermeshing teeth (11,20).
    [13]
    13. Device according to one of claims 1 to 12, characterized in that the first processing tools (10) and / or second processing tools (18) are formed by ring discs, wherein the annular discs are preferably divided into ring segments.
    [14]
    14. A process for the treatment of feed material, in particular for the cleaning of vorzerklei¬ nertem, sheet-like feed material, wherein the feed material is mixed before its preparation with ei¬ner liquid and the treatment is effected by acting on the feed friction forces within an agitation zone, characterized in that the feed material and the liquid is fed in separate streams to the agitation zone and mixed in the agitation zone.
    [15]
    15. The method according to claim 14, characterized in that the feedstock before its entry into the agitation zone has a solids content of at least 75 wt .-%, preferably of at least 80 wt .-%.
    [16]
    16. The method according to claim 14 or 15, characterized in that the feed after supplying the liquid in the agitation zone has a solids content of not more than 20 wt .-%, preferably of at most 15 wt .-%. For this 3 sheets of drawings
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    同族专利:
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    DE102013017136B4|2017-09-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1782456A1|1968-09-05|1971-09-02|Supraton Bruchmann & Zucker Kg|Production of solutions or dispersions|
    WO1983002788A1|1982-02-16|1983-08-18|Klinga, Leif|Method and apparatus for producing fibre pulp from fibrous lignocellulose containing material|
    DE10330756A1|2003-07-07|2005-02-17|Jupiter Gmbh|Fiberous material production for subsequent use with binder for pressing into panels involves mixing wood based fibers and particles with plastic fibers and particles recovered from recycled material|
    AT398991B|1993-05-24|1995-02-27|Andritz Patentverwaltung|MIXERS, IN PARTICULAR HIGH-PERFORMANCE MIXERS FOR REFINING PRE-CRUSHED SUBSTANCES|
    DE19712653C2|1997-03-26|2002-10-24|Voith Paper Fiber Systems Gmbh|Method and device for dispersing a waste paper pulp|
    JP3417802B2|1997-07-08|2003-06-16|財団法人電力中央研究所|Pulverizer and method for producing solid / liquid slurry using the same|
    DE102005013693A1|2005-03-21|2006-09-28|Cvp Clean Value Plastics Gmbh|Process and plant for producing a pulp from agglomerated mixed plastic|
    DE102006054769A1|2006-11-17|2008-05-21|Cvp Clean Value Plastics Gmbh|Recycling process for all waste plastics including mixed plastics involves milling in first stage using toothed disc refiner|DE102015111000A1|2015-07-08|2017-01-12|Cvp Clean Value Plastics Gmbh|Process for cleaning plastics, in particular plastic chips and apparatus for carrying out the process|
    CN108201924B|2016-12-19|2019-12-10|浙江大博文鞋业有限公司|Material crushing mechanism with double-rotation grinding disc|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102013017136.9A|DE102013017136B4|2013-10-16|2013-10-16|Apparatus and method for cleaning pre-shredded, film-shaped feedstock|
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