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1. (WO2019030611) PROCESS AND APPARATUS FOR RECYCLING OF MIXED PLASTIC WASTE
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/030611 International Application No.: PCT/IB2018/055701
Publication Date: 14.02.2019 International Filing Date: 31.07.2018
IPC:
B29B 13/02 (2006.01) ,B29C 47/78 (2006.01) ,B29B 9/00 (2006.01) ,B29B 17/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
13
Conditioning or physical treatment of the material to be shaped
02
by heating
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
47
Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
08
Component parts, details or accessories; Auxiliary operations
78
Heating or cooling the material to be extruded or the stream of extruded material
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
9
Making granules
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
17
Recovery of plastics or other constituents of waste material containing plastics
Applicants:
STEYN, John Henry [ZA/ZA]; ZA
Inventors:
WESSELS, Johannes Tobias; ZA
Agent:
BRIAN BACON INC; 2ND FLOOR MARIENDAHL HOUSE, NEWLANDS ON MAIN, MAIN ROAD, NEWLANDS 7700 CAPE TOWN, ZA
Priority Data:
2017/0535508.08.2017ZA
Title (EN) PROCESS AND APPARATUS FOR RECYCLING OF MIXED PLASTIC WASTE
(FR) PROCÉDÉ ET APPAREIL POUR LE RECYCLAGE DE DÉCHETS PLASTIQUES MÉLANGÉS
Abstract:
(EN) Apparatus (10) for recycling mixed plastic waste, the recycling apparatus comprising a thermal extrusion system including a thermal extruder (12) including an elongate barrel (18) having a first end and a second end. The barrel (18) has a feed opening at the lower end of a hopper (22) into which a mixture of plastic waste and water is introduced. The barrel (22) has a number of heating zones (28.1, 28.2, 28.3) along the length thereof for heating the plastic waste / water mixture to a temperature at least above the boiling point of water so as to cause the water to change phase to steam. A steam vent opening (26) is provided near the second end of the barrel, through which steam is allowed to vent from the barrel. A water collection reservoir is disposed at an operative lower region thereof for collecting excess water which drains from the plastic waste / water mixture. The apparatus further includes an extrusion head including an extrusion die (44) near the second end of the barrel and rotatable a screw conveyer (12) located within the barrel (18) for conveying the mixture of plastic waste and water along the barrel from the first end thereof to the second end thereof.
(FR) L'invention concerne un appareil (10) pour le recyclage de déchets plastiques mélangés, l'appareil de recyclage comprenant un système d'extrusion thermique comprenant une extrudeuse thermique (12) comprenant un cylindre allongé (18) présentant une première extrémité et une deuxième extrémité. Le cylindre (18) dispose d'une ouverture d'alimentation en l'extrémité inférieure d'une trémie (22) dans laquelle est introduit un mélange de déchets de plastique et d'eau. Le cylindre (22) comporte un certain nombre de zones de chauffage (28.1, 28.2, 28.3) le long de la longueur correspondante pour chauffer le mélange déchets plastiques/eau à une température au moins au-dessus du point d'ébullition de l'eau de façon à provoquer le changement de phase de l'eau en vapeur. Une ouverture d'évent de vapeur (26) est située à proximité de la deuxième extrémité du cylindre, à travers laquelle de la vapeur peut s'échapper du cylindre. Un réservoir de collecte d'eau est disposé au niveau d'une région inférieure fonctionnelle correspondante pour collecter l'excès d'eau qui s'écoule du mélange déchets plastiques/eau. L'appareil comprend en outre une tête d'extrusion comprenant une filière d'extrusion (44) à proximité de la deuxième extrémité du cylindre et un transporteur à vis rotative (12) situé à l'intérieur du cylindre (18) pour transporter le mélange de déchets plastiques et d'eau le long du cylindre depuis la première extrémité correspondante à la deuxième extrémité correspondante.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)