Thermoplastic elastomer prilling process

A granulation and process technology, applied in the field of thermoplastic elastomer granulation processing technology, can solve the problems of caking after product packaging, easy adhesion and clogging of colloidal particles, preventing adhesion and clogging, achieving uniformity and stability, increasing The effect of heat exchange cooling effect

Active Publication Date: 2015-11-11
HUNAN BORUIKANG NEW MATERIAL
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The technical scheme of the present invention can fully disperse the colloidal particles and further dissipate heat in the process of conveying through the granulation

Method used

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  • Thermoplastic elastomer prilling process

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Embodiment 1

[0017] The improved granulation system of the present invention is as figure 1 As shown, the granulation system includes a granulation unit T1, a granulation water heat exchanger T2, a colloidal dispersing tank T3 and a centrifugal dehydrator T4, between the granulation unit T1 and the granulation water heat exchanger T2, and a centrifugal dehydrator T4 It is connected with the pelletizing water heat exchanger T2, the centrifugal dehydrator T4 and the pelletizing unit T1 through pipelines, and the colloidal particle dispersion kettle T3 is set on the pipeline between the centrifugal dehydrator T4 and the pelletizing unit T1, and the colloidal particle dispersion The lower part of the tank T3 is connected to the pelletizing unit T1 through the pipeline, and the upper part of the rubber particle dispersion tank T3 is connected to the centrifugal dehydrator T4 through the pipeline. Colloidal particle dispersing tank T3 is equipped with a mechanical stirrer.

[0018] When the gra...

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Abstract

The invention discloses a thermoplastic elastomer prilling process. According to the thermoplastic elastomer prilling process, a double-screw extruder is used for melting and extruding thermoplastic elastomer; a granulator is used for granulation and forming under the effect of water-phase atmosphere, and colloidal particles and colloidal particle water are dispersed in a dispersion still after granulation; meanwhile, the water phase pushes materials to enter a centrifugal dehydrator to be dehydrated and then enter a vibration classifier to be classified; and the water phase is filtered, enters a cooler to be subjected to heat exchange and cooling, and can be reused. Granulated particles obtained through the process are round and full. Adhesion and deformation of products are effectively avoided. Production stability and product quality are improved.

Description

technical field [0001] The invention relates to a thermoplastic elastomer granulation processing technology, which belongs to the field of material processing. Background technique [0002] Extrusion molding is a molding processing method with many changes, high productivity, strong adaptability, wide application and the largest proportion in the field of polymer material processing. Extrusion molding is the continuous molding of polymer melt (or viscous fluid) through a die of a certain shape under the extrusion of the extruder screw, and the obtained product is a continuous profile with a constant cross-sectional shape. [0003] After extrusion molding, under the condition of not using or not being able to pull the rod, a new type of granulation method that contacts the cooling water at the moment when the melt is extruded from the die surface and directly pelletizes. obvious advantage. This type of granulation optimizes particle shape with a smooth and uniform surface, ...

Claims

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Application Information

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IPC IPC(8): B29B9/06B29B9/16
Inventor 张志斌
Owner HUNAN BORUIKANG NEW MATERIAL
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