البحث في مجموعات البراءات الوطنية والدولية

1. (WO2018054698) DEVICE AND METHOD FOR PRODUCING PULVERULENT PLASTICS WITH A SPHERICAL STRUCTURE

Pub. No.:    WO/2018/054698    International Application No.:    PCT/EP2017/072558
Publication Date: Fri Mar 30 01:59:59 CEST 2018 International Filing Date: Sat Sep 09 01:59:59 CEST 2017
IPC: B29B 9/10
B01J 2/04
F25C 1/00
B29B 9/12
Applicants: DRESSLER GROUP GMBH & CO. KG
Inventors: DRESSLER, Axel
Title: DEVICE AND METHOD FOR PRODUCING PULVERULENT PLASTICS WITH A SPHERICAL STRUCTURE
Abstract:
The invention relates to a device for producing pulverulent plastics with a structure which is as spherical as possible, having a container (30) which delimits an interior (32); a nozzle device (7) which is arranged in an upper region of the interior (32) and which is connected to a supply delivery line (3) for a hot melt of the product (2), wherein the melt exits the nozzle device (7) and is individualized into small drops which fall into the interior (32); and a supply unit (6) for a cryogas, said supply unit having multiple outlet openings to which the cryogas is supplied in a largely liquid state and out of which a cryogas flow exits into the interior (32), said cryogas flow coming into contact with the small drops. The supply unit (6) is located above or at the same height as the nozzle device (7). According to the method, the hot melt of the product (2) exits the nozzle device (7) in the form of a spray cone, the cryogas flow exits the supply unit (6) in the form of a cone, and the spray cone is located within the cone.