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Method and device for granulating melted material

A material and equipment technology, used in the field of molten material granulation, can solve the problems of the shell part and other machine parts to which the particles adhere, internal turbulence, etc., and achieve high material production capacity, uniform flow behavior, and good cooling. Effect

Inactive Publication Date: 2015-02-18
AUTOMATIK PLASTICS MASCH GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The associated dimensions and the low coolant gas flow rate lead to internal turbulence, causing a fraction of the particles to come into contact too quickly with housing parts and other machine parts where they may stick

Method used

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  • Method and device for granulating melted material
  • Method and device for granulating melted material
  • Method and device for granulating melted material

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Embodiment Construction

[0039] figure 1 Schematically shows a longitudinal sectional view of a granulation plant for a molten material, eg a pharmaceutical molten material, which is discharged from a nozzle 1 on a perforated plate 2 .

[0040] figure 1 The granulation device shown schematically in has a perforated plate 2 with nozzles 1 arranged thereon, wherein the arrangement of the nozzles 1 is substantially rotationally symmetrical, and the rest of the design of the plant is also rotationally symmetrical or substantially rotationally symmetrical. Such as figure 1 Associated with the perforated plate 2 is shown a cutter device with at least one blade 3 comprising a blade seat 4 on a blade shaft 5 . The cutter device is driven by a motor ( figure 1 not shown in ) so that at least one blade 3 passes over the nozzle 1 on the perforated plate 2 and cuts particles such as molten material of medicine discharged from the nozzle 2 during this time. The molten mass can be melted in a conventional manne...

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PUM

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Abstract

Disclosed are a device and a method for producing pellets from a melt, said device comprising a perforated plate (2) in which nozzles (1) are arranged, the melt being discharged from said nozzles. The device further comprises a cutting chamber (7) in a housing (6, 6a, 6b). The cutting chamber adjoins the perforated plate (2) and surrounds at least part of the cutting arrangement. A gaseous cooling medium flows through the cutting chamber so that the pellets made of the melted material solidify in the cooling medium which is introduced into the cutting chamber (7) via a feeding unit (8, 9). Furthermore, the cooling medium and the pellets located therein are fed to an outlet (11) in the cutting chamber (7), the gaseous cooling medium being cooled by means of a throttle mechanism (9, 10) using adiabatic expansion.

Description

technical field [0001] The present invention relates to a method and an apparatus for granulating molten materials according to claim 1 or the preamble to claim 7, for example, materials or mixtures of materials with active pharmaceutical ingredients, or for example plastic molten materials such as polymer melts material), granulated into granules, especially for the manufacture of e.g. medicaments. Background technique [0002] Molten materials are now usually processed and handled by, for example, pelletizing. In general, extruders or melt pumps are often used in the pelletization of molten materials, hitherto in particular eg plastics. These extruders or melt pumps extrude molten plastic raw material through nozzles in a perforated plate and into a coolant, such as water. In this process, the material discharged through the opening of the nozzle is cut into particles by a cutter device having at least one rotating blade. A corresponding device for carrying out the unde...

Claims

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Application Information

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IPC IPC(8): B29B9/06
CPCB29B9/065B29B9/06B29B7/826B29B7/72B29B7/38B29C48/345B29C48/05B29C48/0022B29K2827/18
Inventor 林哈特-卡斯滕·穆布
Owner AUTOMATIK PLASTICS MASCH GMBH
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