Plant and method for separating labels and other materials from plastic bottles
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B07B-009/00
B29B-017/02
B07B-011/04
B07B-007/01
B29L-031/00
B29L-031/56
B29K-067/00
출원번호
US-0893453
(2014-05-23)
등록번호
US-9827693
(2017-11-28)
우선권정보
IT-MI13A0849 (2013-05-24)
국제출원번호
PCT/EP2014/060736
(2014-05-23)
국제공개번호
WO2014/187992
(2014-11-27)
발명자
/ 주소
Previero, Flavio
출원인 / 주소
PREVIERO N. S.R.L.
대리인 / 주소
Whitmyer IP Group LLC
인용정보
피인용 횟수 :
0인용 특허 :
19
초록
A plant and a method for separating labels, caps and other contaminating materials from containers and bottles made of plastics, in particular bottles made of PET, in the field of treating and recycling plastics.
대표청구항▼
1. A plant for separating labels, caps and other contaminating materials from containers and bottles made of plastics, suitable for being positioned downstream of a rotating drum apparatus for removing said labels from the respective bottles, comprising: a collector for receiving products coming fro
1. A plant for separating labels, caps and other contaminating materials from containers and bottles made of plastics, suitable for being positioned downstream of a rotating drum apparatus for removing said labels from the respective bottles, comprising: a collector for receiving products coming from said drum apparatus, a conduit extending along a conveying path and connecting said collector to a storing group for said labels, along said conduit there are defined: a first-stage separating unit, configured for separating from said products a first fraction containing bodies and heaviest materials of said products, and configured for allowing a second fraction of said products containing bottles and/or containers and labels to advance along said conveying path;a second-stage separating unit configured for separating from said second fraction a third fraction of said products that comprises said bottles and/or containers, and configured for allowing a fourth fraction of said products that mainly contains said labels to advance along said conveying path; and whereinat one end of said conduit, located downstream of said conveying path, there is defined an end-stage unit for receiving and accumulating, in said storing group, said fourth fraction containing said labels;a fan positioned upstream of said first-stage separating unit and configured for generating a first air flow suitable for conveying said second fraction of products to said second-stage separating unit;a suction apparatus positioned near said end-stage unit and configured for generating a second air flow suitable for taking and conveying to said storing group said fourth fraction containing labels;said conduit including a first conduit portion near said first-stage separating unit having a variable section with a chamber having a converging zone with a first adjustable wall configured for accelerating said first air flow near said collector according to a Venturi effect, and the chamber also having an expanding zone with a second adjustable wall disposed downstream of said first adjustable wall; andthe position of said first adjustable wall can be adjusted for varying fluid-dynamic parameters of said first air flow, such as speed and pressure, so as to subject said second fraction of products to a desired thrusting and dragging action along said conveying path. 2. The plant according to claim 1, wherein said first-stage separating unit is configured for separating by gravity said first fraction from said products through a first evacuating opening obtained on said conduit, and wherein said second-stage separating unit is configured for separating by gravity said third fraction, comprising bottles and/or containers, from said second fraction through a second evacuation opening obtained on said conduit, said second-stage separating unit being interposed between said first-stage separating unit and said end-stage unit. 3. The plant according to claim 1, wherein said adjustable wall comprises a deflecting wall, located upstream of a discharge opening of said collector, that delimits, on one side, an outflow port for the flow of air coming from said fan, the position of said deflecting wall being adjustable to vary the passage section of said outflow port for said flow of air. 4. The plant according to claim 1, wherein said adjustable wall comprises a guiding wall, located downstream of the discharge opening of said collector and delimiting, on one side, a reception and channelling zone for said first air flow, the position of said guiding wall being adjustable to vary the inlet section and/or the geometrical conformation of said reception and channelling zone for said first air flow. 5. The plant according to claim 3, wherein said deflecting wall and/or said guiding wall are rotatably adjustable to vary the tilt thereof with respect to said conveying path. 6. The plant according to claim 1, wherein said first-stage separating unit is configured for separating by gravity said first fraction from said products through a first evacuating opening obtained on said conduit, and wherein said second-stage separating unit is configured for separating by gravity said third fraction, comprising bottles and/or containers, from said second fraction through a second evacuation opening obtained on said conduit, said second-stage separating unit being interposed between said first-stage separating unit and said end-stage unit, and wherein said first evacuating opening is placed below said first conduit portion with a variable section, and wherein said collector comprises a hopper element suitable for receiving products exiting said drum apparatus. 7. The plant according to claim 1, wherein said conduit have a cross-section profile that is geometrically shaped to obtain laminar fluid-dynamic operating conditions for said first air flow so as to promote a floating action for said bottles and/or said containers inside said first air flow. 8. The plant according to claim 1, wherein said conduit comprises, downstream of said first-stage separating unit, a first, substantially horizontal, conduit segment, to which, further downstream, a second conduit segment is connected that extends in a tilted manner upwards at a progressively increasing height along said conveying path, and wherein said conduit comprises, downstream of said second conduit segment, a third conduit segment that extends further upwards, said second-stage separating unit being defined astride said second conduit segment and said third conduit segment. 9. The plant according to claim 8, wherein on said third conduit segment, near said second-stage separating unit, an air intake opening is obtained that is configured for enabling said suction apparatus to suck air from the outside to the inside of said conduit to generate said second air flow downstream of said second stage unit. 10. The plant according to claim 9, wherein said air intake opening comprises a pierced plate with which a port element is coupled that is movable for closing to a desired extent said air intake opening, so as to control the quantity of air sucked through said air intake. 11. The plant according to claim 1, wherein in said second stage unit a manifold portion is provided with a shape that is tapered downwards, on which said second evacuation opening is below obtained for said third fraction comprising bottles and containers. 12. The plant according to claim 8, wherein said third conduit segment comprises a zigzag part, suitable for hindering a possible advancement of bottles and/or containers to said storing group. 13. The plant according to claim 8, wherein said conduit further comprises: a fourth conduit segment that in part extends horizontally at a maximum height,a fifth conduit segment that descends by extending downwards as far as said suction apparatus, andan end conduit section that connects said suction apparatus to said storing group. 14. The plant according to claim 1, wherein said first-stage separating unit is configured for separating by gravity said first fraction from said products through a first evacuating opening obtained on said conduit, and wherein said second-stage separating unit is configured for separating by gravity said third fraction, comprising bottles and/or containers, from said second fraction through a second evacuation opening obtained on said conduit, said second-stage separating unit being interposed between said first-stage separating unit and said end-stage unit, and wherein said fan and the part of said conduit that is comprised between said first-stage unit and said second stage unit, are configured so that said first air flow is such as to give to the bottles and containers of said second fraction a kinetic energy and a thrust sufficient to enable the bottles and containers to reach but not go past said second stage unit so as to subsequently fall and exit through said second evacuation opening, and wherein said suction apparatus and the further part of said conduit, that is comprised between said second stage unit and said end stage unit, are configured in such a manner that said second flow is not able to act on said bottles and containers to attract and drag the bottles and containers further along the conveying path but is on the other hand sufficient to attract and drag only the fourth fraction containing labels towards said storing group. 15. The plant according to claim 1, further comprising a control unit operationally connected to, and configured for controlling the driving speed of, said fan and said suction apparatus for obtaining determined fluid-dynamic parameters of said first air flow and said second air flow on the basis of specific process needs and/or on the basis of the types and characteristics of said products. 16. A method for separating labels, caps and other contaminating materials from containers and bottles made of plastics, comprising the steps of: receiving in a collector the products that exit a removing drum apparatus and that consist of said labels, caps, other containing materials and said containers and/or bottles made of plastics; andperforming a first separating stage in which from said products a first fraction containing bodies and heaviest materials of said products is removed by gravity;generating a first air flow for advancing and conveying, inside a conduit and along a conveying path, a remaining second fraction of the products containing labels and bottles and/or containers, including accelerating the first air flow through a converging zone of a chamber of a first conduit portion of the conduit, and including directing the first air flow through an expanding zone of the chamber of the first conduit portion;performing a second separating stage in which from said second fraction a third fraction is separated of said products that comprises said bottles and/or containers;generating a second air flow for removing and further conveying along said conveying path a remaining fourth fraction of the products that prevalently contains labels; andperforming an end stage in which said fourth fraction containing labels is received and accumulated in a storing group. 17. The method according to claim 16, wherein the first separating stage occurs by evacuating by gravity said first fraction through a first evacuating opening of said conduit, and wherein the second separating stage is subsequent to said first stage and occurs by evacuating by gravity said third fraction, comprising bottles and/or containers, through a second evacuation opening obtained on said conduit, wherein said end stage for receiving and accumulating labels occurs subsequently to said second separating stage, and wherein a Venturi-type effect is generated to vary the speed and pressure of the first air flow along said conveying path near said first evacuating opening, accelerating, by zones with a cross section that is progressively reduced, and subsequently slowing said first air flow by advancing it through an expanding zone with a progressively increasing section. 18. The method according to claim 16, wherein fluid-dynamic parameters of said first air flow, are controlled, so as to subject said second fraction of products to a desired thrusting and dragging action along said conveying path, wherein the cross section of said conduit is configured for the passage of said first flow of air to obtain laminar operating fluid-dynamic conditions for said first air flow so as to promote a floating action for said bottles and/or said containers inside said first air flow, and wherein advancing said first air flow is provided first along a first, substantially horizontal conduit segment, and subsequently along a second conduit segment that extends in a tilted manner upwards at a progressively increasing height along said conveying path, and wherein said second flow is advanced, starting from an air intake zone for sucking air from the outside, along a third conduit segment that extends further upwards, partly with a zigzag part, to hinder any further advancement of bottles and/or containers, and wherein said second flow is subsequently advanced through a fourth conduit segment that partially extends horizontally at a maximum height, and subsequently, through a fifth conduit segment that descends by extending downwards as far as said suction apparatus. 19. The method according to claim 16, wherein the fan is driven and controlled and the conduit is configured for obtaining fluid-dynamic conditions of said first air flow so as to give the bottles and containers of said second fraction a kinetic energy and a thrust that are sufficient to reach but not exceed the second evacuation opening, so as to cause the exit and fall of said containers and/or bottles, and wherein said suction apparatus is driven and controlled and the downstream part of said conduit is configured to obtain respective fluid-dynamic conditions, such that said second air flow is not able to act on said bottles and containers to attract and drag said bottles and containers further along the conveying path but is on the other hand sufficient to attract and drag only the fourth fraction containing labels to said storing group. 20. The method according to claim 16, wherein the driving speed of said fan and of said suction apparatus is controlled by a control unit that is operationally connected thereto, to obtain determined fluid-dynamic parameters of said first flow of air and of said second air flow on the basis of specific process needs and/or on the basis of types and features of said products.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (19)
Abbott Kenneth E. (4400 N. Bidahochi Tucson AZ 85749) Lyons Patrick J. (1392 Via Rhonda Oriente Tucson AZ 85715) Satariano Richard M. (4765 E. 24th St. Tucson AZ 85711), Air-flow control for particle cleaning systems.
Bahri ; deceased Marcel Selim (LATE OF Saltsjo-Duvnas SW) Bahri ; heir and legal successor by Elin (Saltsjo-Duvnas SW) Bahri heir and legal successor by Kristin (Saltsjo-Duvnas SW) Eneroth Jan-Mats (, Method and apparatus for separating paper and plastic.
Previero, Flavio, Method and system for removing and separating labels, caps and contaminants in general from bottles and containers of plastic material.
Previero Flavio (Lipomo ITX), Plant for the separation at high temperature of contaminants of various types from plastic material in small pieces or l.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.