초록 ▼

Granulating apparatus, for plastics melt and other materials comprising an extruder head with a perforated member, a rotating cutter to cut material extruded through the perforated member, a housing surrounding the cutter and forming a granulating chamber with a generally upright axis and liquid sup

Granulating apparatus, for plastics melt and other materials comprising an extruder head with a perforated member, a rotating cutter to cut material extruded through the perforated member, a housing surrounding the cutter and forming a granulating chamber with a generally upright axis and liquid supply means to supply cooling liquid to the top edge of the granulating chamber so that the cooling liquid flows in a film over the inner wall of the housing of the granulating chamber to prevent the cut material from sticking to said inner wall and to cool the cut material. The liquid supply means may include a perforated pipe encircling the granulating chamber or a weir at the inner edge of an annular chamber.

대표청구항 ▼

Apparatus for granulating plastics melt and similar materials, comprising: (a) an extruder head through which material to be extruded is passed, (b) a rotating cutter disposed in front of said cutter head for cutting said plastics material into granules, (c) a housing surrounding said cutter and inc

Apparatus for granulating plastics melt and similar materials, comprising: (a) an extruder head through which material to be extruded is passed, (b) a rotating cutter disposed in front of said cutter head for cutting said plastics material into granules, (c) a housing surrounding said cutter and including an outer shell and a spaced, cylindrical inner shell which forms a granulating chamber, said inner shell being smaller in diameter than said outer shell thereby to form an annular chamber open at its upper end between said shells, and being smaller in height than said outer shell thereby to form a weir extending around said granulating chamber at the upper end thereof; (d) cooling liquid supply means communicating with said annular chamber for supplying cooling liquid thereto, and (e) outlet means in said granulating chamber for removing therefrom the cooled granules and cooling liquid, whereby cooling liquid admitted to said annular chamber between said outer and inner shells can be directed into said granulating chamber overr said weir to form a film over the inner surface of said inner shell, said granules thus formed contacting said film of cooling liquid to cool said granules and prevent said granules from sticking together, said film constitutiong the sole means of coolant contact for said granules.