CN115091654A - Plastic identification and classification system and method based on mid-infrared detector - Google Patents
Plastic identification and classification system and method based on mid-infrared detector Download PDFInfo
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- CN115091654A CN115091654A CN202211017224.4A CN202211017224A CN115091654A CN 115091654 A CN115091654 A CN 115091654A CN 202211017224 A CN202211017224 A CN 202211017224A CN 115091654 A CN115091654 A CN 115091654A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0203—Separating plastics from plastics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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Abstract
The invention discloses a plastic identification and classification system and method based on a mid-infrared detector, relates to the technical field of plastic identification, and solves the technical problems that an existing plastic identification device is low in resolution ratio, prone to misjudgment and inaccurate in detection and classification. The system comprises an emission module, a middle infrared detector and a spectrometer; the emission module emits a radiation light source to the plastic piece to be detected; the plastic piece to be detected absorbs the light signal and then reflects the light signal to the mid-infrared detector; the middle infrared detector processes the collected optical signals and transmits the processed optical signals to the spectrometer; the spectrometer identifies the material of the plastic part to be tested by analyzing the received data. According to the invention, the emission module emits a radiation light source onto a plastic piece to be detected, the radiation light source is absorbed and then reflected, the intermediate infrared detector receives and photoelectrically converts a detected reflected light signal and then sends the reflected light signal to the spectrograph, the spectrograph processes the received signal and then identifies the material of the plastic piece to be detected, and then the plastic piece to be detected is classified and stored.
Description
Technical Field
The invention relates to the technical field of plastic identification, in particular to a plastic identification and classification system and method based on a mid-infrared detector.
Background
With the increasing growth of plastic wastes, the hazards of the plastic wastes attract great attention, and the recycling of waste plastic products bears the double roles of environmental protection and sustainable development of the plastic industry. At present, in view of the limited means of plastic waste recovery, only a small part of the plastic waste can be recycled, and most of the other plastic waste can be disposed of only by incineration and other modes, which is one of the important sources of environmental pollution.
One of the most problematic problems in the recycling of plastic products is how to properly sort the products. Except for the low-efficiency means of manual classification, the current intelligent sorting means is based on near infrared spectrum analysis, and plastic waste is sorted and recycled by adopting a near infrared linear array mid-infrared detector. The plastic product is usually a high molecular polymer, such as PE, PP, PVC (polyethylene, polypropylene, polyvinyl chloride), etc., and such molecules have weak absorption characteristics in the near infrared spectrum and low resolution. Therefore, in the spectral identification and judgment stage, due to mutual interference, misjudgment often occurs, and the plastic is inconvenient to sort.
In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:
the existing plastic identification device has low resolution, is easy to generate misjudgment and is inaccurate in detection and classification.
Disclosure of Invention
The invention aims to provide a plastic identification and classification system and method based on a mid-infrared detector, and aims to solve the technical problems that the existing plastic identification device in the prior art is low in resolution, prone to misjudgment and inaccurate in detection and classification.
The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a plastic identification and classification system based on a mid-infrared detector, which comprises an emission module, a mid-infrared detector and a spectrometer, wherein the emission module is used for emitting infrared rays; the emission module emits a radiation light source to the plastic piece to be detected; the plastic piece to be detected absorbs the optical signal and then reflects the optical signal to the mid-infrared detector; the middle infrared detector processes the collected optical signals and transmits the optical signals to the spectrometer; and the spectrometer identifies the material of the plastic part to be detected by analyzing the received data.
Preferably, the device also comprises a chopping module and a converging lens; the chopping module is arranged on an optical path between the emission module and the plastic part to be tested; the chopping module converts the radiation light source emitted by the emitting module into a pulse signal.
Preferably, the converging lens is arranged on a light path between the plastic piece to be detected and the mid-infrared detector; the converging lens converges the light signal reflected to the mid-infrared detector at a focal point.
Preferably, the spectrometer performs analog-to-digital conversion on the received signal through the data processing module, and performs comparative analysis on the signal and a plastic spectrum database.
Preferably, the spectrometer is further provided with a display module; the display module is electrically connected with the data processing module; the display module can display the result of the plastic part material to be detected analyzed by the data processing module.
Preferably, the mid-infrared detector can perform photoelectric conversion, amplification and filtering processing on the received optical signal.
Preferably, the system also comprises a photosensitive card or a beam quality analyzer; the photosensitive card and the beam quality analyzer can calibrate a radiation light source from the transmitting module to the plastic part to be detected and reflect the radiation light source to a light path through which the middle infrared detector passes.
Preferably, the sorting machine further comprises a sorting table and a plurality of sorting boxes; the sorting table is of a conveying structure and can convey the plastic pieces to be detected placed on the sorting table; a plurality of the classification box can be according to the material of the working of plastics that awaits measuring is categorised and is accomodate.
A plastic identification and classification method based on a mid-infrared detector comprises any one of the above plastic identification and classification systems based on the mid-infrared detector, and the method comprises the following steps:
s100, the emission module emits a radiation light source to a plastic piece to be detected on the sorting table;
s200, the plastic part to be detected absorbs the optical signal and then reflects the optical signal, and the reflected optical signal detected by the middle infrared detector is subjected to photoelectric conversion, amplification and filtering and then sent to a spectrometer;
s300, the spectrometer carries out analog-to-digital conversion on the received signals, compares the signals with a plastic spectrum database, and classifies the plastic parts to be detected after identifying the materials of the plastic parts.
Preferably, the S300 includes the steps of:
s310, comparing the received signal with a standard database after the analog-to-digital conversion is carried out on the signal by the spectrograph;
s320, identifying the material of the plastic piece to be detected through the characteristics of the collected spectrum signals by the spectrometer, and sending an instruction to the sorting table;
s330, the sorting table receives the instruction sent by the spectrometer, drives the plastic part to be detected to move, and the plastic part to be detected is stored in the classification box corresponding to the identification result.
The implementation of one of the technical schemes of the invention has the following advantages or beneficial effects:
according to the invention, the emission module emits a radiation light source to the plastic piece to be detected, the radiation light source is absorbed and then reflected, the middle infrared detector receives and photoelectrically converts the detected reflected light signal and sends the converted reflected light signal to the spectrometer, the spectrometer processes the received signal and then identifies the material of the plastic piece to be detected, and then the plastic piece to be detected is classified and stored.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural diagram of an embodiment of a plastic identification and classification system based on a mid-infrared detector according to the invention;
FIG. 2 is a spectrum diagram of an embodiment of the plastic identification and classification system based on a mid-infrared detector according to the invention;
FIG. 3 is a circuit diagram of an embodiment of the plastic identification and classification system based on mid-infrared detector of the present invention;
FIG. 4 is a first flowchart of an embodiment of the plastic identification and classification method based on a mid-infrared detector according to the invention;
FIG. 5 is a second flowchart of the plastic identification and classification method based on the mid-infrared detector according to the embodiment of the invention.
In the figure: 1. a transmitting module; 2. a mid-infrared detector; 3. a spectrometer; 4. a plastic part to be tested; 5. a chopping module; 6. a converging lens; 7. a sorting table; 8. and (7) sorting boxes.
Detailed Description
In order that the objects, aspects and advantages of the present invention will become more apparent, various exemplary embodiments will be described below with reference to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary embodiments in which the invention may be practiced. The same numbers in different drawings identify the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. It is to be understood that they are merely examples of processes, methods, apparatus, etc., consistent with certain aspects of the present disclosure, as detailed in the appended claims, and that other embodiments may be used, or structural and functional modifications may be made to the embodiments set forth herein, without departing from the scope and spirit of the present disclosure.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," and the like are used herein in an orientation or positional relationship as illustrated in the accompanying drawings for convenience in describing the present invention and to simplify description, and are not intended to indicate or imply that the referenced elements must have a particular orientation, be constructed in a particular orientation, and be operated. The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The term "plurality" means two or more. The terms "connected" and "coupled" are to be construed broadly and may include, for example, a fixed connection, a removable connection, an integral connection, a mechanical connection, an electrical connection, a communicative connection, a direct connection, an indirect connection via intermediate media, and may include, for example, a connection between two elements or an interaction between two elements. The term "and/or" includes any and all combinations of one or more of the associated listed items. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In order to explain the technical solution of the present invention, the following description is made by way of specific examples, and only the portions related to the examples of the present invention are shown.
The first embodiment is as follows:
as shown in fig. 1-3, the present invention provides a plastic identification and classification system based on mid-infrared detector, which includes an emission module 1, a mid-infrared detector 2 and a spectrometer 3; the emission module 1 emits a radiation light source to the plastic piece 4 to be detected; the plastic part 4 to be detected absorbs the optical signal and then reflects the optical signal to the mid-infrared detector 2; the middle infrared detector 2 processes the collected optical signals and transmits the processed optical signals to the spectrometer 3; the spectrometer 3 identifies the material of the plastic part 4 to be tested by analyzing the received data. Specifically, the mid-infrared detector 2 collects a spectrum signal reflected by a plastic part 4 to be detected after absorbing a light signal by polymer plastics such as a mid-infrared ray, PE, PP, PVC (polyethylene, polypropylene, polyvinyl chloride) and the like, and the spectrum signal has obvious characteristics on the spectrum of the mid-infrared ray, thereby perfectly making up the limitation of the existing near-infrared method, improving the resolution of the plastic, having wider application range, and enabling the characteristics of various polymers on the mid-infrared ray to be unique, and being convenient for recycling or treating plastic waste; meanwhile, the radiation light source emitted by the emitting module 1 is superposed to a certain frequency, the middle infrared detector 2 can respond at a high speed, the interference of environmental signals can be effectively avoided, and the detection accuracy is ensured. After the plastic part 4 to be measured absorbs the optical signal, waveform characteristics appear on the spectrum, and the waveform characteristics caused by plastics of different materials are different. The material of the plastic part 4 to be tested is accurately analyzed through the spectrometer 3, so that the plastic garbage can be accurately classified and independently collected conveniently, the labor is saved, the treatment cost is reduced, and the emission of carbon dioxide is reduced; the invention utilizes infrared spectrum analysis, is not affected by electromagnetic interference, has strong detection capability and long acting distance of the mid-infrared detector 2, and fully exerts the real-time on-line high efficiency. According to the invention, the emission module 1 emits a radiation light source to the plastic part 4 to be detected, the radiation light source is absorbed and then reflected, the middle infrared detector 2 receives and photoelectrically converts the detected reflected light signal and sends the converted reflected light signal to the spectrometer 3, the spectrometer 3 processes the received signal and then identifies the material of the plastic part 4 to be detected, and then the plastic part 4 to be detected is classified and stored.
As an alternative embodiment, as shown in fig. 1, the device further includes a chopper module 5 and a converging lens 6; the chopping module 5 is arranged on an optical path between the emission module 1 and the plastic part 4 to be tested; the chopping module 5 converts the radiation source emitted by the emitting module 1 into a pulsed signal. Specifically, the chopper module 5 is disposed on the light path between the emission module 1 and the plastic part 4 to be measured, so as to modulate the radiation light source emitted by the emission module 1 into a pulse signal with a fixed frequency, preferably into a pulse signal with a frequency of about 5hz, and the frequency of the pulse signal depends on the rotation speed of the chopper wheel of the chopper module 5.
As an alternative embodiment, as shown in fig. 1, the converging lens 6 is disposed on the light path between the plastic part 4 to be tested and the mid-infrared detector 2; the condensing lens 6 condenses the light signal reflected to the mid-infrared detector 2 at a focal point. Specifically, the converging lens 6 is arranged on a light path between the plastic part 4 to be detected and the middle infrared detector 2, so that light signals reflected to the middle infrared detector 2 are converged at a focus and transmitted to the middle infrared detector 2, and the middle infrared detector 2 can detect strong middle infrared rays. The converging lens 6 is preferably a lens with a large diameter and a small focal length, and is convenient for converging the optical signal diffusely reflected by the plastic part 4 to be detected.
As an alternative embodiment, the spectrometer 3 performs analog-to-digital conversion on the received signal through the data processing module, and performs comparative analysis with the plastic spectrum database. Specifically, the spectrometer 3 performs analog-to-digital conversion on the received signals through the data processing module, so that the converted data and the data in the spectrum database are visually compared, the material of the plastic part 4 to be detected is analyzed, and the plastic is accurately classified. The spectrometer 3 has a very wide spectral range of 3-14 μm, can cover most common living plastic products and engineering plastic products, and can meet more customized requirements by replacing the mid-infrared detectors 2 with different wave bands.
As an optional embodiment, the spectrometer 3 is further provided with a display module; the display module is electrically connected with the data processing module; the display module can display the result of the material quality of the plastic part 4 to be tested analyzed by the data processing module. Specifically, a display module on the spectrometer 3 is electrically connected with the data processing module, so that the result analyzed by the data processing module can be conveniently displayed. The display module is also provided with an operation interface which can adjust the scanning frequency and the result refreshing speed of the system, so that the system is more convenient, intelligent, flexible and accurate to operate.
As an alternative embodiment, the mid-infrared detector 2 can perform photoelectric conversion, amplification, and filtering processing on the received optical signal. Specifically, after the mid-infrared detector 2 performs photoelectric conversion, amplification and filtering on the received optical signal, the spectrum data received by the spectrometer 3 is clearer, and the material of the plastic part 4 to be detected is easier to analyze; be provided with ray apparatus scanning assembly on well infrared detector 2, can increase whole well infrared detector 2's detection range, more effective space of utilization. The circuit diagram of optical signal processing and amplification is shown in fig. 3, the signal is amplified through the series-parallel amplifier, after the mid-infrared detector 2 is powered on, the built-in temperature controller starts to cool, and reaches the required temperature in less than 5 seconds, at which time Vamp and Vcooler are started. TEMP _ OK is a simple comparator that detects that the module temperature is near or below expected when the output is asserted high. The TEMP _ OUT provides the current temperature dependent voltage, at steady state, and the TEMP _ OUT and TEMP _ REF are equal. The middle infrared detector 2 is made of a mercury cadmium telluride material, the lower the temperature of the material is, the better the performance is, the temperature of the material is reduced by a built-in temperature controller, and the purpose is to improve the signal-to-noise ratio and the sensitivity of the detector, so that the detection and identification precision of the whole system is improved.
As an optional embodiment, the system further comprises a photosensitive card or a light beam quality analyzer; the photosensitive card and the beam quality analyzer can calibrate the radiation light source from the emission module 1 to the plastic part 4 to be detected and reflect the radiation light source to the light path through which the middle infrared detector 2 passes. Specifically, through the photosensitive card, light beam quality analysis appearance calibration radiation light source is from emission module 1 to working of plastics 4 that awaits measuring to the light path that reflects 2 process of well infrared detector, be convenient for to emission module 1, well infrared detector 2 is installed fixedly based on the position of letter sorting platform 7, the radiation light source of better assurance emission module 1 transmission can shine on the working of plastics 4 that await measuring on the letter sorting platform 7, the optical signal who is reflected by the working of plastics 4 that awaits measuring simultaneously can be detected by well infrared detector 2.
As an optional embodiment, a sorting table 7 and a plurality of sorting boxes 8 are further included; the sorting table 7 is of a conveying structure and can convey the plastic pieces 4 to be detected placed on the sorting table 7; a plurality of categorised boxes 8 can be based on the material of the working of plastics 4 that awaits measuring and classify and accomodate. Specifically, the equidistant of a plurality of working of plastics 4 that await measuring is placed on letter sorting platform 7, and letter sorting platform 7 is the conveying structure, can drive the working of plastics 4 that await measuring and remove, puts into corresponding categorised box 8 after being detected the discernment in proper order. The sorting table 7 can be set as a circulating conveying belt, a plurality of sorting boxes 8 are placed below the sorting table 7, pop-up windows are arranged at the places where the to-be-detected plastic pieces 4 are placed, after the to-be-detected plastic pieces 4 are detected and identified, the to-be-detected plastic pieces are conveyed to the positions above the sorting boxes 8 corresponding to the identification results, the pop-up windows are opened, and the identified to-be-detected plastic pieces 4 automatically fall into the sorting boxes 8 to be stored; also can set up to sort platform 7 and can carry out reciprocating motion, after the working of plastics 4 that await measuring is detected discernment, sort platform 7's end removes the categorised box 8 top that corresponds with the discernment result, and the conveyer belt motion drives to be discerned on the conveying and is accomodate in the categorised box 8 by the automatic dropping of the working of plastics 4 that await measuring after the discernment, and sort platform 7 moves back initial position, discerns next working of plastics 4 that await measuring.
Example two:
as shown in fig. 4 to 5, a plastic identification and classification method based on a mid-infrared detector includes a plastic identification and classification system based on a mid-infrared detector according to a first embodiment, and includes the following steps:
s100, the emission module emits a radiation light source to a plastic piece to be detected on the sorting table;
s200, reflecting the plastic part to be detected after absorbing the optical signal, and sending the reflected optical signal detected by the middle infrared detector to a spectrometer after photoelectric conversion, amplification and filtering;
s300, the spectrometer compares the received signals after analog-to-digital conversion with a plastic spectrum database, and classifies the materials of the plastic parts to be detected after the materials of the plastic parts to be detected are identified.
As an alternative embodiment, S300 includes the following steps:
s310, comparing the received signal with a standard database after analog-to-digital conversion is carried out on the received signal by a spectrometer;
s320, identifying the material of the plastic piece to be detected through the characteristics of the collected spectrum signals by the spectrometer, and sending an instruction to a sorting table;
s330, the sorting table receives an instruction sent by the spectrometer, drives the plastic part to be detected to move, and the plastic part to be detected is stored in the classification box corresponding to the identification result. Specifically, the control command that the spectrum appearance sent to the letter sorting platform is decided according to the discernment result of spectrum appearance, and through the different results of discerning, letter sorting platform receives different control command, can with the working of plastics that await measuring move to with the corresponding categorised box top of result, accomodate the working of plastics that await measuring after the discernment.
While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A plastic identification and classification system based on a mid-infrared detector is characterized by comprising an emission module (1), a mid-infrared detector (2) and a spectrometer (3); the emission module (1) emits a radiation light source to a plastic piece (4) to be detected; the plastic piece (4) to be detected absorbs the optical signal and then reflects the optical signal to the mid-infrared detector (2); the middle infrared detector (2) processes the collected optical signals and transmits the processed optical signals to the spectrometer (3); the spectrometer (3) identifies the material of the plastic part (4) to be detected by analyzing the received data.
2. The plastic identification and classification system based on the mid-infrared detector is characterized by further comprising a chopping module (5) and a converging lens (6); the chopping module (5) is arranged on a light path between the emission module (1) and the plastic part to be tested (4); the chopping module (5) converts the radiation light source emitted by the emitting module (1) into a pulse signal.
3. The plastic identification and classification system based on the mid-infrared detector as claimed in claim 2, wherein the converging lens (6) is arranged on the light path between the plastic part (4) to be detected and the mid-infrared detector (2); the converging lens (6) converges the light signal reflected to the mid-infrared detector (2) at a focal point.
4. The plastic identification and classification system based on the mid-infrared detector as claimed in claim 1, wherein the spectrometer (3) performs analog-to-digital conversion on the received signals through a data processing module, and performs comparison analysis with a plastic spectrum database.
5. The plastic identification and classification system based on the mid-infrared detector as claimed in claim 4, characterized in that the spectrometer (3) is further provided with a display module; the display module is electrically connected with the data processing module; the display module can display the result of the material of the plastic part (4) to be tested analyzed by the data processing module.
6. The plastic identification and classification system based on the mid-infrared detector as claimed in claim 1, characterized in that the mid-infrared detector (2) can perform photoelectric conversion, amplification and filtering processing on the received optical signal.
7. The plastic identification and classification system based on the mid-infrared detector is characterized by further comprising a photosensitive card or a beam quality analyzer; the photosensitive card and the beam quality analyzer can calibrate a radiation light source from the transmitting module (1) to the plastic part (4) to be detected and reflect the radiation light source to a light path through which the middle infrared detector (2) passes.
8. The plastic identification and classification system based on mid-infrared detector as claimed in claim 1, characterized by further comprising a sorting table (7) and a plurality of classification boxes (8); the sorting table (7) is of a conveying structure and can convey the plastic pieces to be tested (4) placed on the sorting table (7); the classification boxes (8) can be classified and stored according to the material of the plastic part (4) to be detected.
9. A plastic identification and classification method based on a mid-infrared detector, which is characterized by comprising the plastic identification and classification system based on a mid-infrared detector as claimed in any one of claims 1 to 8, and the method comprises the following steps:
s100, the emission module emits a radiation light source to a plastic piece to be detected on the sorting table;
s200, the plastic part to be detected absorbs the optical signal and then reflects the optical signal, and the reflected optical signal detected by the middle infrared detector is subjected to photoelectric conversion, amplification and filtering and then sent to a spectrometer;
s300, the spectrometer performs analog-to-digital conversion on the received signals, compares the signals with a plastic spectrum database, and classifies the plastic parts to be detected after identifying the materials of the plastic parts to be detected.
10. The plastic identification and classification method based on mid-infrared detector as claimed in claim 9, wherein the S300 includes the steps of:
s310, comparing the received signal with a standard database after the analog-to-digital conversion is carried out on the signal by the spectrograph;
s320, identifying the material of the plastic piece to be detected through the characteristics of the collected spectrum signals by the spectrometer, and sending an instruction to the sorting table;
s330, the sorting table receives the instruction sent by the spectrometer, drives the plastic part to be detected to move, and the plastic part to be detected is stored in the classification box corresponding to the identification result.
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| CN202211017224.4A CN115091654A (en) | 2022-08-24 | 2022-08-24 | Plastic identification and classification system and method based on mid-infrared detector |
| CN202223159061.1U CN218803350U (en) | 2022-08-24 | 2022-11-28 | Plastic identification and classification system based on mid-infrared detector |
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| JPS6089732A (en) * | 1983-10-21 | 1985-05-20 | Mitsubishi Heavy Ind Ltd | Automatic sample feeder of diffuse reflection device |
| JP2002131310A (en) * | 2000-10-25 | 2002-05-09 | Sony Corp | Device for regenerating portion of plastics used for identification and method of regenerating portion of plastics used for identification |
| CN103940772A (en) * | 2013-01-21 | 2014-07-23 | 三菱电机株式会社 | Resin type identification method and resin type identification apparatus |
| CN107344405A (en) * | 2017-06-21 | 2017-11-14 | 临川环境技术（天津）有限公司 | A kind of method of ductile plastics recovery volume reduction in house refuse |
| CN109719055A (en) * | 2017-10-30 | 2019-05-07 | 松下知识产权经营株式会社 | Resin determination method and resin decision maker |
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- 2022-08-24 CN CN202211017224.4A patent/CN115091654A/en active Pending
- 2022-11-28 CN CN202223159061.1U patent/CN218803350U/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6089732A (en) * | 1983-10-21 | 1985-05-20 | Mitsubishi Heavy Ind Ltd | Automatic sample feeder of diffuse reflection device |
| JP2002131310A (en) * | 2000-10-25 | 2002-05-09 | Sony Corp | Device for regenerating portion of plastics used for identification and method of regenerating portion of plastics used for identification |
| CN103940772A (en) * | 2013-01-21 | 2014-07-23 | 三菱电机株式会社 | Resin type identification method and resin type identification apparatus |
| CN107344405A (en) * | 2017-06-21 | 2017-11-14 | 临川环境技术（天津）有限公司 | A kind of method of ductile plastics recovery volume reduction in house refuse |
| CN109719055A (en) * | 2017-10-30 | 2019-05-07 | 松下知识产权经营株式会社 | Resin determination method and resin decision maker |
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