# US 2017/0282189 A1 · Plant and process for the recovery of wires from car fluff > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0282189 A1 - Document ID: US20170282189A1 - Status: Published application - Kind: A1 - Application number: 15/473,960 - Filed: 2017-03-30 - Published: 2017-10-05 - Earliest claimed: 2016-04-01 - Assignees: SGM Gantry S.p.A. - Applicants: SGM Gantry S.p.A. - Inventors: Danilo MOLTENI - Web page: https://patentgrep.com/patent/US20170282189A1 ## CPC - B02C 23/14: with more than one separator - B03B 9/061: {the refuse being industrial} - B03C 1/30: Combinations with other devices, not otherwise provided for - B03B 2009/068: {Specific treatment of shredder light fraction} - C22B 1/005: {Preliminary treatment of scrap (C22B1/02 - C22B1/26 take precedence)} - C22B 7/005: {Separation by a physical processing technique only, e.g. by mechanical breaking} - Y02P 10/20: Recycling - Y02W 30/52: Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly - Y02W 30/82: Recycling of waste of electrical or electronic equipment [WEEE] - B02C: CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN ({household tools and machines for pulverising foodstuffs, e.g. coffee and spice mills A47J42/00; pharmaceutical mortars A61J3/02; mechanical processing of refuse and garbage B03B9/06; dressing mould materials by grinding B22C5/04}; obtaining metallic powder by crushing, grinding or milling B22F9/04; {recovery of plastics by disintegrating B29B17/00; crushing raw materials in starch making C08B30/02; beaters for papermaking D21D1/02; crushing devices specially for transport in mines E21F13/002; slag crushing devices F23J1/00; fuel milling devices in combustion apparatus F23K1/00; household devices for crushing coal F24B15/02; ice disintegrating devices F25C5/02}) - B03B: SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS - B03C: MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS (separating isotopes B01D59/00; combinations of magnetic or electrostatic separation with separation of solids by other means B03B, B07B) - C22B: PRODUCTION AND REFINING OF METALS (electrolytic C25); PRETREATMENT OF RAW MATERIALS - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS - Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT ## Abstract A plant for the treatment of car fluff is disclosed having one or more magnetic iron separators, followed by one or more eddy current separators that receive the negative coming from the magnetic iron separators, followed by one or more inductive sensor-based recovery separators that receive the negative coming from the eddy current separators, followed by at least two inductive sensor-based polishing separators respectively calibrated for the separation of stainless steel and copper wires arranged for receiving the material separated by the inductive sensor-based recovery separators, an unravelling shredder also being arranged between the latter and the polishing separator(s) calibrated for the separation of copper wires. ## Claims ### Claim 1 A car fluff treatment plant comprising: a) one or more magnetic iron separators; b) one or more eddy current separators that receive the negative coming from said magnetic iron separators; c) one or more inductive sensor-based recovery separators that receive the negative coming from said eddy current separators; d) at least two inductive sensor-based polishing separators respectively calibrated for the separation of stainless steel and of copper wires, said inductive sensor-based polishing separators being arranged to receive the material separated by said inductive sensor-based recovery separators wherein the plant further includes an unravelling shredder arranged between the inductive sensor-based recovery separators and the inductive sensor-based polishing separator(s) calibrated for the separation of copper wires. ### Claim 2 (depends on 1) The plant according to claim 1, wherein the unravelling shredder is a single-shaft or double-shaft shredder of the low-speed high-torque type, optionally with a power in the range of 75-120 KW. ### Claim 3 (depends on 1) The plant according to claim 1, wherein the unravelling shredder is provided with a clutch that stops it in case it receives a piece too hard to be processed therein. ### Claim 4 (depends on 1) The plant according to claim 1, wherein the unravelling shredder receives the negative coming from an inductive sensor-based polishing separator calibrated for the separation of stainless steel. ### Claim 5 (depends on 1) The plant according to claim 1, wherein the unravelling shredder receives the material separated by an inductive sensor-based recovery separator calibrated for the separation of copper wires. ### Claim 6 (depends on 1) The plant according to claim 1, wherein it further includes one or more aeraulic separators arranged immediately upstream from the magnetic iron separators and/or the inductive sensor-based recovery separators and/or the unravelling shredder. ### Claim 7 (depends on 1) A process for the treatment of car fluff with a plant according to claim 1 comprising: a) iron removal, by means of one or more magnetic separators; b) main recovery of non-ferrous metals, by means of one or more eddy current separators that treat the negative resulting from step a); c) recovery separation of residual non-ferrous metals, by means of one or more inductive sensor-based recovery separators that treat the negative resulting from step b); d) polishing separation of the material separated in step b), by means of at least one inductive sensor-based polishing separator calibrated for the separation of stainless steel; and e) polishing separation of the material separated in step c) or of the negative resulting from step b), by means of at least one inductive sensor-based polishing separator calibrated for the separation of copper wires; wherein it further includes a step d′) of breaking up by means of an unravelling shredder of the material to be treated in step e). ### Claim 8 (depends on 7) The process according to claim 7, further comprising a step of separation of the material into a light fraction and a heavy fraction by means of an aeraulic separator immediately before step a) and/or step c) and/or step d′). ### Claim 9 (depends on 7) The process according to claim 7, wherein step c) is divided into two sub-steps c′) and c″) in which the recovery of stainless steel and copper wires is carried out separately, by means of two or more inductive sensor-based recovery separators respectively calibrated for the separation of said materials. ### Claim 10 (depends on 7) The process according to claim 7, wherein the treated material has a size between 16 and 120 mm. ### Claim 11 (depends on 7) The process according to claim 7, wherein the treated material has a size between 40 and 120 mm.