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Apparatus for processing plastic material

A technology of plastic materials and plastics, applied in the direction of plastic recycling, transportation and packaging, recycling technology, etc., can solve the problems of reducing the cross section of the feeding port, reducing the material throughput, and poor feeding performance, so as to prolong the maintenance. effect of intervals, reduced downtime, accurate fill levels

Active Publication Date: 2014-06-25
EREMA ENG RECYCLING MASCH & ANLAGEN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And this will cause material to accumulate in this area, reducing the cross-section of the feed port, resulting in poor feeding performance and low material throughput
Furthermore, an increase in the feed pressure in this region can cause melting, so that the problems raised in the beginning part reappear

Method used

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  • Apparatus for processing plastic material
  • Apparatus for processing plastic material
  • Apparatus for processing plastic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0072] The containers, screws and mixing tools themselves and their relative relationship to each other are not to scale in the drawings. Thus, for example, in practice the containers are in most cases larger than shown here, and the screws are longer than shown here.

[0073] figure 1 and figure 2 The advantageous combined cutting and compacting device and extruder shown for the production or recycling of plastics material has a cylindrical container or cutting and compacting device or crusher 1 with a flat horizontal bottom 2 and a vertically oriented Vertical cylindrical shell-shaped side wall 9.

[0074] At a shorter distance from the bottom 2, at most about 10-20% of the side wall 9, if necessary also at a lower height (measured from the bottom 2 to the highest edge of the side wall 9), there are A flat support disc or tool holder 13 oriented parallel to the bottom surface 2, which can rotate in the direction of rotation or movement direction 12 marked with arrow 12 a...

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PUM

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Abstract

The invention relates to an apparatus for preprocessing and subsequently conveying or plasticizing plastics, comprising a container (1) with a mixing and / or comminuting tool (3) that can rotate about a rotational axis (10), wherein an opening (8) is formed in a lateral wall (9) through which the plastic material can be discharged and a conveyor (5) is provided with a screw (6) rotating in a housing (16). The invention is characterized in that the imaginary extension of the longitudinal axis (15) of the conveyor (5) passes by the rotational axis (10) counter the conveying direction (17), wherein the longitudinal axis (15) is on the outlet side offset by a distance (18) in relation to the radial (11) that is parallel to the longitudinal axis (15). The length / diameter ratio of the screw (6) is >= 7, and the effect of compression of the screw (6) starts only at a distance (A) of more than 1.5 times the diameter (d) of the screw (6).

Description

technical field [0001] The invention relates to a device according to the preamble of claim 1 . Background technique [0002] The prior art discloses a large number of similar devices in different configurations, which include holding containers or cutting and compacting devices for crushing, heating, softening and preparing the plastic material to be recycled and conveyors connected thereto or for melting Extruder of the material thus prepared. The aim is to obtain a mostly granular end product of the highest possible quality. [0003] For example, in EP 123 771 or EP 303 929, a device with a holding container and an extruder connected thereto is described, wherein by rotating the crushing and mixing means, the plastic material fed to the holding container is crushed and swirled around, It is heated at the same time by the energy added. This results in a mixture with sufficiently good thermal homogeneity. After a corresponding residence time, the mixture is discharged f...

Claims

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Application Information

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IPC IPC(8): B29B13/10B29B17/04B29C47/60B02C18/08B01F15/02B29C48/03B29C48/04B29C48/395
CPCB29C47/0011B29C47/38B29B7/14B29B13/10B01F15/0289B29B17/0412B02C18/2216B29B17/04B29B2017/048B29C47/0009B29B7/10B29B7/18B29B17/0026B02C18/086Y02W30/62B29C48/03B29C48/04B29C48/395B01F35/754551B29B7/60B29B7/38B29B7/66B29B7/885B01F35/71B02C18/08
Inventor K.菲奇廷格M.哈克尔
Owner EREMA ENG RECYCLING MASCH & ANLAGEN GMBH
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