Patents Assigned to Pegaso Industries S.p.A.
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Publication number: 20240159461Abstract: A drying plant (1) for granular polymer material based on polyethylene terephthalate (PET) comprises a hopper (2), which the granular polymer material is dried and a supply and recirculation circuit (10) for a process gas which is provided to dry the granular polymer material and comprising a catalysing group (25) which is configured to promote a decomposition reaction of contaminating substances which are present in the process gas and which are released from the granular polymer material in the hopper.Type: ApplicationFiled: March 18, 2022Publication date: May 16, 2024Applicant: Pegaso Industries S.P.A.Inventor: Rinaldo PIVA
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Publication number: 20230382014Abstract: A plant for drying granular polymer material comprises a hopper, in which granular polymer material is dried, and a process gas circuit which is configured to supply a process gas to the hopper in order to dry the granular polymer material.Type: ApplicationFiled: October 15, 2021Publication date: November 30, 2023Applicant: PEGASO INDUSTRIES S.P.A.Inventor: Rinaldo PIVA
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Patent number: 11707866Abstract: A process for drying granular polymeric material, comprising the steps of: dehumidifying the granular polymeric material by means of a first flow of gas at a first temperature of between 100° C. and 150° C.; heating the dehumidified granular polymeric material to a second temperature, greater than the first temperature; drying the granular polymeric material heated to the second temperature, by applying a predefined vacuum level; and transferring the dried granular polymeric material to a feed hopper (40) provided upstream of a working machine (100).Type: GrantFiled: April 19, 2018Date of Patent: July 25, 2023Assignee: PEGASO INDUSTRIES S.P.A.Inventor: Rinaldo Piva
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Publication number: 20230158713Abstract: A process for drying granular polymeric material, includes: dehumidifying the granular polymeric material by a first flow of gas at a first temperature of between 100° C. and 150° C.; heating the dehumidified granular polymeric material to a second temperature, greater than the first temperature; drying the granular polymeric material heated to the second temperature, by applying a predefined vacuum level. The pressure-sealing elements include a filling unit, which includes a small tank blocked upstream and downstream by shut-off valves, as well as a discharge unit, which includes a small tank blocked upstream and downstream by respective shut-off valves.Type: ApplicationFiled: January 25, 2023Publication date: May 25, 2023Applicant: Pegaso Industries S.p.A.Inventor: Rinaldo PIVA
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Patent number: 11639825Abstract: A process for drying polymeric granular material (2) comprises the steps of: —introducing into said drying hopper (10) a process gas having a predefined flow rate so as to heat and dry the polymeric granular material, —discharging a portion of the heated polymeric granular material into a transformation unit (100) for the polymeric material; —loading an amount of fresh polymeric granular material (2a) into the drying hopper. The process gas flow rate is regulated by measuring the inlet temperature of the fresh polymeric granular material (2a) and comparing it with a predefined inlet temperature of the fresh polymeric granular material, on the basis of which the predefined process gas flow rate has been calculated. If the measured inlet temperature is different from the predefined inlet temperature, the flow rate of the process gas is regulated on the basis of the measured inlet temperature.Type: GrantFiled: June 15, 2018Date of Patent: May 2, 2023Assignee: PEGASO INDUSTRIES S.P.A.Inventor: Rinaldo Piva
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Publication number: 20220024076Abstract: A process for treating polymer granular material (2) comprising the steps of heating and drying the polymer granular material in a drying hopper (10) by means of a drying gas, discharging a portion of the polymer granular material into an extruder (101), inside which the polymer granular material is brought to a molten or semi-molten state and transported along the extruder by a rotating screw (104) in order to be injected into a mould (102) or caused to pass through an extrusion head. The process provides for measuring a control parameter which is correlated with the rotation of the screw inside the extruder and regulating the flow rate of the drying gas on the basis of the control parameter.Type: ApplicationFiled: December 12, 2019Publication date: January 27, 2022Applicant: PEGASO INDUSTRIES S.P.A.Inventor: Rinaldo PIVA
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Publication number: 20220024103Abstract: A plastics material transformation plant (100) comprises a transformation machine (10) for the plastics material by means of moulding or extrusion, a feeding hopper (13) which is positioned upstream of the transformation machine and a metering device (1) which is arranged to add a liquid additive to the transformation machine. The metering device (1) comprises a container (4) in which the liquid additive is contained, a metering pump (5) which is connected to the container in order to take the liquid additive and to supply it to the transformation machine (10), and a thermo-regulation system of the liquid additive which is arranged to maintain the temperature of the liquid additive in a range of 2° C. more or 2° C. less than a predetermined temperature value.Type: ApplicationFiled: December 12, 2019Publication date: January 27, 2022Applicant: PEGASO INDUSTRIES S.P.A.Inventor: Rinaldo PIVA
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Publication number: 20210276224Abstract: A process for drying granular polymeric material, comprising the steps of: dehumidifying the granular polymeric material by means of a first flow of gas at a first temperature of between 100° C. and 150° C.; heating the dehumidified granular polymeric material to a second temperature, greater than the first temperature; drying the granular polymeric material heated to the second temperature, by applying a predefined vacuum level; and transferring the dried granular polymeric material to a feed hopper (40) provided upstream of a working machine (100).Type: ApplicationFiled: April 19, 2018Publication date: September 9, 2021Applicant: Pegaso Industries S.p.A.Inventor: Rinaldo PIVA
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Publication number: 20200200474Abstract: A process for drying polymeric granular material (2) comprises the steps of: —introducing into said drying hopper (10) a process gas having a predefined flow rate so as to heat and dry the polymeric granular material, —discharging a portion of the heated polymeric granular material into a transformation unit (100) for the polymeric material; —loading an amount of fresh polymeric granular material (2a) into the drying hopper. The process gas flow rate is regulated by measuring the inlet temperature of the fresh polymeric granular material (2a) and comparing it with a predefined inlet temperature of the fresh polymeric granular material, on the basis of which the predefined process gas flow rate has been calculated. If the measured inlet temperature is different from the predefined inlet temperature, the flow rate of the process gas is regulated on the basis of the measured inlet temperature.Type: ApplicationFiled: June 15, 2018Publication date: June 25, 2020Applicant: Pegaso Industries S.p.A.Inventor: Rinaldo PIVA