US 5,182,115 A · Device for cooling, drying and granulating strands

Abstract

A device for cooling, drying, and granulating molten strands issuing from nozzles with an outlet channel, the upper end of which is located below the nozzles, a device, generating a current of cooling liquid over the outlet channel, a granulator arranged downstream of the outlet channel and with a dehydrating section that is arranged upstream of the granulator and in which the strands rest on a support provided with orifices for the unrestricted passage of the cooling liquid. The outlet channel in the region following the dehydrating section is provided with inlet nozzles that inject a current of fluid and that are so close together and arranged over such a length in its bottom that the strands are guided with respect to the bottom virtually without friction along the outlet channel in the granulator arranged at its lower end and with a degree of dehydration that enables immediate further processing.

Claims20

Dependent claims

A device for cooling, drying, and granulating molten strands issuing from nozzles, said device comprising an outlet channel having an upstream end, a downstream end and a bottom extending from said upstream end to said downstream end, the upstream end of which is located below the nozzles, means for generating a current of cooling liquid over the outlet channel, and a granulator arranged downstream of the outlet channel, said channel including a dehydrating section that is arranged upstream of the granulator and in which the strands rest on a support provided with orifices for providing unrestricted passage of the cooling liquid, the outlet channel further including a region following the dehydrating section, said region being provided with inlet nozzles that inject a current of fluid upward through said outlet channel, said inlet nozzles being so close together and arranged over such a length in said bottom of said outlet channel so that the strands are guided with respect to the bottom virtually without friction along the outlet channel and into the granulator with a degree of dehydration that enables immediate further processing.

A device for cooling, drying, and granulating molten strands issuing from nozzles, said device comprising:

a channel having an upstream end and a downstream end, said channel defining a bottom for receiving the strands for movement from said upstream end to said downstream end, said channel further defining a cooling section, an initial drying section and a final drying section, said bottom of said channel in said cooling section being substantially imperforate for supporting a cooling liquid, said bottom of said channel in said initial drying section having a perforate construction through which said cooling liquid is substantially removed from said channel, and said bottom of said channel in said final drying section having openings through which a drying fluid is passed;
means for supplying the cooling liquid to said cooling section of said channel to cool the molten strands;
means for passing the drying fluid upward through said openings in said bottom of said channel in said final drying section so that said strands are further dried and so that said strands are passed along said channel toward said downstream end of said channel without incurring significant frictional resistance with respect to the bottom of said channel;
and
a granulator adjacent said downstream end of said channel for granulating said strands.

2 more elements

Dependencies are inferred from the claim text.

Device for cooling, drying and granulating strands

Life of this patent

Device for cooling, drying and granulating strands

Life of this patent

Abstract

Claims20