Planet flat die granulator

Abstract

The invention discloses a planet flat die granulator. The planet flat die granulator comprises a containing barrel for containing materials and an extrusion assembly coaxially arranged in the containing barrel to extrude the materials out of the containing barrel and form particles; extrusion holes are formed in the bottom of the containing barrel; the extrusion assembly comprises at least one circular truncated cone-structured extrusion roller for extruding the materials and a planet transmission mechanism for fixedly arranging the extrusion roller and driving the extrusion roller to rotate around the axis of the containing barrel and auto-rotate; the conical surface of the extrusion roller is tangential with the inside surface of the bottom of the containing barrel and the axis of the extrusion roller is coplanar with the axis of the containing barrel. According to the planet flat die granulator, the slippage and rotation stop phenomena existing in the slippage friction granulation mode are effectively avoided by the revolution and autorotation actions of the circular truncated cone-structured extrusion roller; the temperature rising in the granulation process is small, the humidity of the materials is convenient to control, the production efficiency is greatly improved, the compactness of the particles is enhanced and the product quality is greatly improved.

Description

technical field [0001] The invention relates to a granulator, in particular to a planetary flat die granulator. Background technique [0002] Granulation is an essential process in the production of solid dosage forms, and almost all solid dosage preparation processes are inseparable from the granulation process. The granules made may be final products, such as granules; or intermediate products, such as tablets; and in the production of tablets, granules are intermediates, not only to improve fluidity to reduce the weight difference of tablets, but also to Ensure the compression moldability of the pellets. [0003] The existing granulator extrudes the material from the granulator to form granules through the extruding device during processing, and the extruding device and the material holding device extrude the material through sliding friction, such as through a scraper, through a sliding Friction granulation has the following disadvantages: First, the form of sliding fr...

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Problems solved by technology

[0003] The existing granulator extrudes the material from the granulator to form granules through the extruding device during processing, and the extruding device and the material holding device extrude the material through sliding friction, such as through a scraper, through a sliding Friction granulation has the following disadvantages: First, the form of sliding friction mainly relies on the extruding device of the granulator to be forced to move under the action of the power gear, which is prone to slipping and stalling, resulting in low production efficiency. The friction coefficient of the material itself is very small, such as the material with high humidity, there will be sticky agglomeration, on the one hand, it will cause slippage and stop, and it will not be easily extruded to form particles, which will greatly affect the production efficiency, and the sliding friction extrusion method has a great impact on the production efficiency. The power requirement is high and the energy consumption is large. Secondly, due to the use of sliding friction to extrude the material, the temperature rise of the extrusion device is serious, which makes it difficult to control the humidity of the material, resulting in low quality and compactness of the produced particles, especially for Materials with high humidity requirements will affect product quality

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