Method and apparatus for feeding and conveying material

{
  "publication_number": "US11577912B2",
  "country": "US",
  "kind": "B2",
  "title": "Method and apparatus for feeding and conveying material",
  "abstract": "An apparatus and method for feeding and conveying material in a sorted manner in a pneumatic material conveying system, in which at least two material fractions re fed from a feed aperture and conveyed in a channel space further to a delivery end of a material conveying channel by gravity and/or suction Material is fed from at least one feed aperture of at least one input point and a first material fraction is conducted to the channel space and stored temporarily in the channel space or conducted to the outside of the channel space, and material is fed into a feed-in container, in which a second material fraction fed therein is held in temporary storage by a stopper means.",
  "claims": [
    "1. A method for feeding and conveying material in a sorted manner in a pneumatic material conveying system, the method comprising: receiving a first material fraction using at least one first input point, the at least one first input point comprising a first feed-in container and a first feed aperture; conducting the first material fraction to a channel space of a material conveying channel via the first feed aperture of the at least one first input point and storing the first material fraction temporarily in the channel space or conducting the first material fraction from the channel space to outside of the channel space; receiving a second material fraction using at least one second input point, the at least one second input point comprising a second feed-in container and a second feed aperture and temporarily holding the second material fraction in the second feed-in container with a stopper, wherein, in a first operating state, said stopper prevents the passage of the second material fraction from the second feed-in container to the channel space of the material conveying channel, and wherein the first input point with the first feed-in aperture and the first feed-in container and the second input point with the second feed-in aperture and the second feed-in container are disposed in proximity to each other, in a vertical direction one on top of the other.",
    "2. The method according to claim 1, wherein, in a second stage, the method comprises conveying the first material fraction stored temporarily in the channel space of the material conveying channel in a material conveying pipe of the pneumatic material conveying system to a separator device or to a container and separating the first material fraction from transport air.",
    "3. The method according to claim 1, wherein, in a third stage, the method comprises releasing the second material fraction stored temporarily in the second feed-in container by moving the stopper to a second operating state in which the stopper does not prevent the passage of material to the channel space of the material conveying channel, whereby the second material fraction may pass from the second feed-in container to the channel space of the material conveying channel via the second feed aperture.",
    "4. The method according to claim 1, wherein the method comprises feeding the first material fraction and the second material fraction simultaneously into the first and second feed-in containers of the first and second input points.",
    "5. The method according to claim 1, wherein the method further comprises guiding the first material fraction from the channel space by opening a passageway to the outside of the channel space by a guide means.",
    "6. The method according to claim 1, wherein the method further comprises opening and closing a material feed aperture to the first feed-in container of the first input point using a first hatch.",
    "7. The method according to claim 1, wherein the method further comprises opening and closing a material feed aperture to the second feed-in container of the second input point by a second hatch.",
    "8. The method according to claim 1, wherein the method further comprises feeding a third material fraction to at least one third input point, into a third feed-in container of the at least one third input point, and temporarily holding the third material fraction in the third feed-in container with a second stopper, wherein, in a first operating state of the second stopper, the second stopper prevents the passage of the third material fraction from the third feed-in container to the channel space of the material conveying channel.",
    "9. The method according to claim 8, wherein the method further comprises discharging the third material fraction stored temporarily in the third feed-in container of the at least one third input point, by moving the second stopper to a second operating state of the second stopper in which the second stopper does not prevent the passage of the third material fraction to the channel space of the material conveying channel, whereby the third material fraction may pass from the third feed-in container to the channel space of the material conveying channel via a third feed aperture of the at least one third input point.",
    "10. The method according to claim 1, wherein in the method further comprises conveying the first material fraction in a material conveying pipe of the pneumatic material conveying system by means of a pressure difference generated by the partial-vacuum generator of the pneumatic material conveying system and/or a transport air flow to a separator device or container, and separating the first material fraction from transport air.",
    "11. The method according to claim 1, wherein in the method, at least one of the first material fraction or the second material fraction comprises unpacked waste material, waste material packed into bags, recyclable material, or one or more of the following: glass, plastic, paper, paperboard, organic material, biomaterial, and mixed waste.",
    "12. The method according to claim 1, wherein in the method further comprises introducing replacement air in the channel space of the material conveying channel.",
    "13. The method according to claim 1, wherein the method further comprises conveying waste material or recyclable material as the first material fraction or the second material fraction in buildings or vessels.",
    "14. The method according to claim 1, wherein in the method further comprises arranging part of the channel space of the material conveying channel to extend in a direction different from the vertical direction.",
    "15. An apparatus for feeding and conveying material in a sorted manner in a pneumatic material conveying system, the apparatus comprising: a material conveying channel comprising a channel space and a delivery end, wherein the material conveying channel is configured to selectively convey a first material fraction and a second material fraction to the delivery end; a first input point comprising a first feed-in container and a first feed aperture to the channel space, wherein the first feed-in container defines a first passageway, wherein the first passageway is open, and wherein the first input point is configured to receive the first material fraction; and a second input point comprising a second feed-in container and a second feed aperture to the channel space, wherein the second input point is configured to receive the second material fraction, wherein second input point further comprises a stopper, wherein, in a first operating state, the stopper is configured to prevent the passage of the second material fraction from the second feed-in container to the channel space of the material conveying channel and the second feed-in container a temporary storage for the second fraction material, wherein, in a second operating state, the stopper is configured to release the second material fraction to pass from the second feed-in container to the channel space of the material conveying channel, wherein a channel part of the material conveying channel is provided with means for temporarily storing material fed into the channel space and with guide means for conducting material to the outside of the channel space, and wherein the first input point with the first feed-in aperture and the first feed-in container and the second input point with the second feed-in aperture and the second feed-in container are disposed in proximity to each other, and in a vertical direction one on top of the other.",
    "16. The apparatus according to claim 15, wherein the guide means is configured for opening a passageway to the outside of the channel space in a first position thereof and for closing the passageway to the outside of the channel space in a second position.",
    "17. The apparatus according to claim 15, wherein the first input point further comprises a first hatch, wherein the first hatch is openable and closable relative to the first feed aperture.",
    "18. The apparatus according to claim 15, wherein the second input point further comprises a second hatch, wherein the second hatch is openable and closable relative to the second feed aperture.",
    "19. The apparatus according to claim 15, wherein the stopper is a plate or rod or pipe part moved by a drive device.",
    "20. The apparatus according to claim 15, wherein the material conveying channel is provided with a plurality of spaced-apart input stations, each input station comprising the first input point and the second input points.",
    "21. The apparatus according to claim 20, wherein the stoppers of each second input point are movable from the first operating state to a second operating state in stages, starting with a lowest stopper disposed in the first operating state and moving in an upwards vertical direction to a vertically adjacent stopper until all stoppers of the material conveying channel have been moved from the first operating state to the second operating state.",
    "22. The apparatus according to claim 15, wherein the apparatus further comprises means for conducting replacement air to the channel space of the material channel.",
    "23. The apparatus according to claim 15, wherein the apparatus is configured for a building or a vessel and for conveying waste material or recyclable material as the first material fraction or the second material fraction.",
    "24. The apparatus according to claim 15, wherein a material feed aperture to the first feed-in container of the first input point is openable and closable by a first hatch which is hinged to open and close about a vertical axis.",
    "25. The apparatus according to claim 15, wherein a material feed aperture to the second feed-in container of the second input point is openable and closable by a second hatch which is of a hopper type and hinged to open and close about a horizontal axis."
  ],
  "description_excerpt": "The invention relates to a method according to the preamble of claim 1.\n\nThe invention also relates to an apparatus according to claim 16.\n\nThe invention relates generally to material conveying systems, such as to pneumatic partial-vacuum transporting systems, particularly to the collection and conveying of wastes, such as to the conveying of household wastes. Such systems are presented e.g. in publications WO 2009/080880, WO 2009/080881, WO 2009/080882, WO 2009/080883, WO 2009/080884, WO 2009/080885, WO 2009/080886, WO 2009/080887 and WO 2009/080888. The invention also relates to waste feeding means, such as to input points or refuse chutes, with which waste is conveyed, typically by gravity, for example in residential buildings from higher feed apertures to a lower collection space or corresponding container.\n\nSystems wherein wastes are conveyed in piping by means of a pressure difference or suction are known in the art. In these systems, the wastes are conveyed for long distances in the piping by sucking. It is typical to these systems that a partial-vacuum apparatus is used to achieve the pressure difference, in which apparatus a negative pressure is brought about in the conveying pipe with partial-vacuum generators, such as with vacuum pumps or with an ejector apparatus. The conveying pipe typically comprises at least one valve means which is opened and closed in order to regulate the replacement air coming into the conveying pipe.",
  "cpc": [
    "B65F 5/005",
    "B65F 1/105",
    "B65G 43/08",
    "B65G 51/22",
    "B65G 53/34"
  ],
  "ipc": [
    "B65F 5/00",
    "B65G 43/08",
    "B65G 51/22",
    "E04F 17/12"
  ],
  "assignees": [
    "Maricap Oy"
  ],
  "inventors": [
    "Göran Sundholm"
  ],
  "filing_date": "2020-01-13",
  "publication_date": "2023-02-14",
  "grant_date": "2023-02-14",
  "priority_date": "2019-01-25",
  "application_number": "US-202017420422-A",
  "family_id": "71736215",
  "cited_by_count": 0,
  "citations": [
    "US3490813A",
    "US3951461A",
    "US4013551A",
    "US3986590A",
    "US4076321A",
    "US4995765A",
    "US4902482A",
    "US5253766A",
    "US5213402A",
    "US5280688A",
    "FR2807083A1",
    "WO2009080885A1",
    "WO2009080883A1",
    "WO2009080886A1",
    "WO2009080884A1",
    "WO2009080882A1",
    "WO2009080881A1",
    "WO2009080887A1",
    "WO2009080888A1",
    "WO2009080880A1",
    "US9434541B2",
    "US20100243405A1",
    "US20120155975A1",
    "WO2011110740A2",
    "US20130243536A9",
    "WO2014049197A1",
    "US20150246773A1",
    "WO2015015054A1",
    "US10399799B2",
    "US20160097206A1",
    "US20160145057A1",
    "CN106429127A",
    "US20210172629A1"
  ]
}