Patent application number | Description | Published |
20090091054 | Device and Process for Producing Pellets From a Plastic Melt - The invention relates to a device for producing pellets from a plastic melt by extrusion, comprising a perforated plate from which the plastic melt is extruded at a pressure above the ambient pressure; a process chamber into which the plastic melt is extruded; a chopping device for chopping strands of the plastic melt extruded from the perforated plate into individual granules, the process chamber being filled with a process fluid; and a pumping device which supplies the process fluid to the process chamber at a pressure above the ambient pressure, the pressure of the process fluid with the therein contained granules being reduced downstream of the process chamber. According to the invention, an energy converter is provided downstream of the process chamber, wherein said energy converter extracts at least some of the pressure energy from the process fluid with the therein contained granules, reduces the pressure of the process fluid with the therein contained granules and converts at least some of the extracted energy into a reusable form of energy. The invention further relates to a corresponding process for producing pellets from a plastic melt by extrusion and also to a corresponding application. | 04-09-2009 |
20130287876 | PERFORATED PLATE - A perforated plate of a granulating device for thermoplastic plastic material, having nozzle openings, and wherein at least one side of the perforated plate has a functional layer in at least one region. The functional layer is thermally insulating as compared to the base material of the perforated plate, and is more abrasion-resistant than the base material of the perforated plate, and consists of an enamel coating. | 10-31-2013 |
20140042659 | METHOD FOR PRODUCING PHARMACEUTICAL PRODUCTS FROM A MELT MATERIAL - A method for producing pharmaceutical products from a melt material, wherein the melt material emerges from nozzles in a perforated plate, and is then granulated. A motor-driven cutter arrangement having at least one blade is opposite the perforated plate so that it cuts pellets emerging from nozzles in the perforated plate. A gaseous coolant flows through a housing which adjoins the perforated plate and encloses the at least one blade. The pellets of the melt material are then solidified in the coolant. Coolant is introduced from a separate inlet chamber that circumferentially encloses the housing in the area of rotation and from an inlet nozzle arrangement extending circumferentially between the inlet chamber and the housing. Coolant is introduced circumferentially from all sides essentially radially inward. A substantially centripetal flow of the coolant is produced in the area of rotation, and the coolant and pellets are conveyed to an outlet. | 02-13-2014 |