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Multi-axis screw machines for devolatilization of polymer melts

A devolatilization, polymer technology, applied in the field of multi-axis screw machines, can solve the problem of high technical expenditure

Active Publication Date: 2016-05-18
COPERION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this extrusion plant is that the technical outlay is high due to the number of required screw machines or extruders

Method used

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  • Multi-axis screw machines for devolatilization of polymer melts
  • Multi-axis screw machines for devolatilization of polymer melts
  • Multi-axis screw machines for devolatilization of polymer melts

Examples

Experimental program
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Effect test

Embodiment Construction

[0029] Refer below Figure 1~4 A first embodiment of the present invention is described. A twin-shaft screw machine 1 has a housing 2 which comprises a plurality of housing parts 3 - 9 arranged behind one another, which are referred to as housing segments. The housing segments 3 - 9 each have a flange 10 , 11 at the end, by means of which the housing parts 3 - 9 are connected to one another to form the housing 2 .

[0030] In the housing 2 are formed two housing holes 12 , 13 parallel to each other and penetrating each other, the housing holes having a horizontal "8" shape in cross-section. In the penetration region of the housing bores 12 , 13 , the housing parts 3 - 9 have so-called spandrels 14 , 15 .

[0031]Arranged concentrically in the housing bores 12 , 13 are two shafts 16 , 17 which can be rotatably driven by a drive motor 18 about relative axes of rotation 19 , 20 . A transfer gear 21 is arranged between the shafts 16 , 17 and the drive motor 18 , and a clutch 22...

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Abstract

The invention relates to a multi-shaft screw machine (1) for devolatilization of polymer melts, having at least one devolatilization unit (38, 39) with a corresponding devolatilization unit (40, 41), said The devolatilization unit extends from the housing (2) to the shaft (16) in the housing bore (12) and is designed such that the surface area of ​​the polymer melt increases over the devolatilization unit (40, 41). Integrating the devolatilization unit (40, 41) in the multi-spindle screw machine (1) significantly increases the devolatilization performance in the devolatilization zone (30, 31), wherein the structure of the multi-spindle screw machine (1) remains Simple.

Description

technical field [0001] The invention relates to a multi-shaft screw machine for devolatilization of polymer melts (polymer melt devolatilization), comprising a housing having a plurality of housing parts and At least two housing holes are formed in the housing, the at least two housing holes are parallel to each other and penetrate each other; at least two shafts are concentrically arranged in the housing holes and can rotatably driven about an associated axis of rotation; a plurality of processing elements for processing polymer melts, which are non-rotatably arranged one behind the other in the direction of the respective axis of rotation on the at least two shafts and in close engagement with each other; and at least one devolatilization device for removing volatile components contained in the polymer melt. Background technique [0002] Devolatilization of polymer melts to improve polymer quality is common in the industrial production of plastic materials. Volatile comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/76B29C48/03B29C48/40B29C48/405B29C48/54B29C48/57B29C48/76
CPCB29C2045/605B29C48/03B29C48/2565B29C48/6801B29C48/268B29C48/362B29C48/402B29C48/54B29C48/57B29C48/682B29C48/767B29B7/483B29B7/488B29B7/845B29C48/405B29C48/40B29B7/489
Inventor C·尤里奇F·莱希纳J·舍弗尔
Owner COPERION
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