Title:
APPARATUS FOR REMOVING FOREIGN SUBSTANCES FROM WASTE PLASTIC
Document Type and Number:
WIPO Patent Application WO/2023/080256
Kind Code:
A1
Abstract:
Provided is an apparatus for removing foreign substances from waste plastic, the apparatus being capable of assuredly removing foreign substances such as stainless steel and a feebly-magnetic material mixed in waste plastic, and being able to supply, to a reuse step and together with general plastic bags, aluminum-deposited or aluminum-film-coated bags without removing the same. This apparatus for removing foreign substances from waste plastic removes foreign substances mixed in waste plastic, which includes aluminum-deposited or aluminum-film-coated plastic bags, in a stage prior to reuse of the waste plastic. The apparatus comprises: a conveyance path for conveying waste plastic; an X-ray device comprising an X-ray source for irradiating waste plastic being conveyed on the conveyance path with X-rays and a line sensor for receiving the radiated X-rays; a foreign substance detection unit for detecting a stainless steel foreign substance and a feebly-magnetic foreign substance on the basis of data of images captured by the line sensor; and a foreign substance removal unit for removing the stainless steel foreign substance and the feebly-magnetic foreign substance detected by the foreign substance detection unit from the conveyance path.
Inventors:
ONO AKINORI (JP)
Application Number:
PCT/JP2022/041606
Publication Date:
May 11, 2023
Filing Date:
November 08, 2022
Export Citation:
Assignee:
NIHON SENBETSU KAKO CO LTD (JP)
International Classes:
B07C5/12; B09B3/30; B29B17/02; C08J11/08; G01N23/04; G01N23/087; G01N23/18
Domestic Patent References:
| WO1998011456A1 | 1998-03-19 |
Foreign References:
| JP2002267637A | 2002-09-18 | |||
| JPH09127017A | 1997-05-16 | |||
| JP2007105582A | 2007-04-26 | |||
| JP2015158406A | 2015-09-03 | |||
| JP3152920U | 2009-08-20 |
Attorney, Agent or Firm:
KYOSEI INTERNATIONAL PATENT OFFICE (JP)
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