CN208906167U - A kind of sorting unit of waste plastic type - Google Patents
A kind of sorting unit of waste plastic type Download PDFInfo
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- CN208906167U CN208906167U CN201821455578.6U CN201821455578U CN208906167U CN 208906167 U CN208906167 U CN 208906167U CN 201821455578 U CN201821455578 U CN 201821455578U CN 208906167 U CN208906167 U CN 208906167U
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- light source
- conveying mechanism
- waste plastic
- sorting device
- waste plastics
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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
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Abstract
The utility model relates to a kind of sorting units of waste plastic type, including conveying mechanism, infrared light scanning light source above the conveying mechanism forward position, NIR light electric explorer positioned at infrared light scanning light source front end, the control mechanism being connect with the infrared light scanning light source and NIR light electric explorer, the high-pressure jet mechanism below the conveying mechanism front end；The high-pressure jet mechanism is connect with the control mechanism, and the front end of the high-pressure jet mechanism is additionally provided with classified partition.The utility model irradiates the SPECTRAL DIVERSITY of different plastics kinds by infrared light scanning light source; different types of waste plastic is sorted; substantially increase the classification effectiveness of waste plastic; improve the resource reusing rate of domestic waste; the value of product is improved by more accurately classifying; environment is preferably protected simultaneously, it is practical.
Description
Technical field
The utility model relates to waste plastic sorting technology fields, more specifically refer to a kind of point of waste plastic type
Screening device.
Background technique
Waste plastic is the important component in house refuse, is discarded with reference in related document China domestic waste
The accounting of plastics is about 7%-12%.Waste plastic enters refuse landfill and does not account for storage capacity singly, wastes land resource, and mould
The degradation cycle of material is extremely long, very big to soil harm.Waste plastic is also the main original that dioxin is generated in waste incineration disposition
Cause.
The big classification of sorting technology of existing waste plastic mixture can be divided into dry and wet.The principle of wet split is
According to the density variation of different types of plastics, applicable flotation medium is configured；The shortcomings that wet split is that environmental pollution is big, modeling
Drying after material gets wet needs to clean water consumption, dry energy consumption.Conventional dry sorting technology mainly has selection by winnowing, electrostatic separation；Selection by winnowing
Nicety of grading it is poor；The applicable object of electrostatic separation is limited.
Utility model content
The purpose of the utility model is to overcome the defects of the prior art, provide a kind of sorting dress of waste plastic type
It sets.
To achieve the above object, the utility model uses following technical scheme:
A kind of sorting unit of waste plastic type, including conveying mechanism, it is close above the conveying mechanism forward position
Infrared scanning light source, the NIR light electric explorer positioned at infrared light scanning light source front end, with the infrared light scanning
The control mechanism that light source is connected with NIR light electric explorer, the high-pressure jet mechanism below the conveying mechanism front end；It is described
High-pressure jet mechanism is connect with the control mechanism, and the front end of the high-pressure jet mechanism is additionally provided with classified partition.
Its further technical solution are as follows: the control mechanism includes communication interface, and the control connecting with the communication interface
Device processed；The infrared light scanning light source, NIR light electric explorer and high-pressure jet mechanism are connect with the communication interface.
Its further technical solution are as follows: the front end of the conveying mechanism is additionally provided with cover of becalming.
Its further technical solution are as follows: the conveying mechanism is conveyer belt or conveying roller；The front end of the conveying mechanism
To tilt down.
Its further technical solution are as follows: the conveying speed of the conveying mechanism is 0.05m/s-0.2m/s.
Its further technical solution are as follows: the NIR light electric explorer is equipped with several probes, each probe detection
Width be 30-60mm.
Its further technical solution are as follows: the detection cycle of the probe is 1-2s, when detection a length of 0.5-1s.
Its further technical solution are as follows: the vertical range of the probe and the conveying mechanism is 100-300mm.
Its further technical solution are as follows: the horizontal distance of the high-pressure jet mechanism and the classified partition is 200-
600mm。
The beneficial effect of the utility model compared with prior art is: irradiating different plastics by infrared light scanning light source
The SPECTRAL DIVERSITY of type sorts different types of waste plastic, substantially increases the classification effectiveness of waste plastic, improves
The resource reusing rate of domestic waste, the value of product is improved by more accurately classifying, while preferably protecting environment,
It is practical.
The utility model is further described in the following with reference to the drawings and specific embodiments.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the sorting unit of waste plastic type of the utility model；
Fig. 2 is the schematic diagram of the NIR map of common plastics；
Fig. 3 is the block diagram of the control system of the sorting unit of waste plastic type；
Fig. 4 is the radiation scope and wavelength schematic diagram of different light；
Fig. 5 is the schematic diagram of different resonant frequencies of the different waste plastics in resonance；
Fig. 6 is the spectral technique schematic diagram that the sorting unit of the utility model waste plastic type uses；
Fig. 7 is the schematic diagram for the different optical frequency trap curves that controller receives；
Fig. 8 is a kind of flow chart of the method for separating of waste plastic type.
10 conveying mechanism, 20 infrared light scanning light source
30 NIR light electric explorer, 40 control mechanism
41 communication interface, 42 controller
50 high-pressure jet mechanism, 60 classified partition
70 becalm cover
Specific embodiment
In order to more fully understand the technology contents of the utility model, combined with specific embodiments below to the skill of the utility model
Art scheme is further described and illustrates, but not limited to this.
Such as Fig. 1 to specific embodiment shown in Fig. 8, the utility model discloses a kind of sorting of waste plastic type dresses
It sets, including conveying mechanism 10, the infrared light scanning light source 20 above 10 forward position of conveying mechanism, is located at infrared light scanning
The NIR light electric explorer 30 of 20 front end of light source, the control machine being connect with infrared light scanning light source 20 and NIR light electric explorer 30
Structure 40, the high-pressure jet mechanism 50 below 10 front end of conveying mechanism；High-pressure jet mechanism 50 is connect with control mechanism 40, high
The front end of pressure jet mechanism 50 is additionally provided with classified partition 60.
Wherein, the SPECTRAL DIVERSITY that different plastics kinds are irradiated by infrared light scanning light source, to different types of discarded
Plastics are sorted, and the classification effectiveness of waste plastic is substantially increased, and the resource reusing rate of domestic waste are improved, by more
Accurately classification improves the value of product.
Specifically, as shown in Figure 1, control mechanism 40 includes communication interface 41, and the controller connecting with communication interface 41
42；Infrared light scanning light source 20, NIR light electric explorer 30 and high-pressure jet mechanism 50 are connect with communication interface 41, are convenient for
Communication and intelligent control.
Wherein, in the present embodiment, communication interface 41 is RS232 communication interface.
Wherein, the front end of conveying mechanism 10 is additionally provided with cover 70 of becalming, avoid because the reason of wind, everywhere sorting error
Situation improves the efficiency of separation.
Wherein, in the present embodiment, conveying mechanism 10 is conveyer belt or conveying roller；Structure is simple, and transfer efficiency is high；
The front end of conveying mechanism 10 is to tilt down, and falls from conveying mechanism 10 convenient for waste plastic, improves the efficiency of separation.
Wherein, the conveying speed of conveying mechanism 10 be 0.05m/s-0.2m/s, in the present embodiment, conveying mechanism 10 it is defeated
Sending speed is 0.1m/s, and conveying is steady, improves scanning effect.
Wherein, NIR light electric explorer 30 is equipped with several probe (not shown)s, and the width of each probe detection is
30-60mm, with more detection efficient.
Wherein, the detection cycle of probe is 1-2s, when detection a length of 0.5-1s；In the present embodiment, the detection week of probe
Phase is 1s, when detection a length of 0.5s, speed of detection is fast, and precisely.
Further, the investigative range of NIR light electric explorer 30 about 2000mm2。
Wherein, popping one's head in the vertical range of conveying mechanism 10 is 100-300mm, in the present embodiment, probe and conveyer
The vertical range of structure 10 is 200mm, and Effect on Detecting is best.
Wherein, the horizontal distance of high-pressure jet mechanism 50 and classified partition 60 is 200-600mm, is convenient for high-pressure jet mechanism
The 50 waste plastic delivery that will be excluded are to abandoned stope.
Wherein, in the present embodiment, high-pressure jet mechanism 50 is high pressure air rifle, and structure is simple and high-efficient.
The principle that the utility model uses is as follows: as shown in Fig. 2, the near infrared spectrum of different types of plastics is different,
It can choose applicable photoelectric detector to be identified；Mainly there is common waste plastic in domestic waste: polythene PE,
Polypropylene PP, polyvinylchloride, polystyrene PS, polyethylene terephtalate, acrylonitrile-butadiene-styrene (ABS)
ABS, polycarbonate, polymetylmethacrylate, polyamide PA, PE polyurethane etc..Near infrared ray be between
Electromagnetic wave between visible light and middle infrared ray refers to 14300~4000cm of wave number-1, wavelength be 0.75-2.5 μm of electromagnetic wave；English
Literary fame Near Infrared, hereinafter referred to as NIR.In analytical chemistry principle, near infrared ray shakes to hydric group C-H, N-H, O-H
Move selective absorption；To the selective absorption of the NIR of different frequency.Therefore by photodetector, sample difference can be measured
The content of component.
Wherein, infrared light scanning light source 20 and NIR light electric explorer 30 are sensed using fpga chip and high speed linear array CCD
Device, major function is to carry out dynamic scan to the waste plastic bottle at the uniform velocity passed through by ccd sensor, by image digitization transfer
Parallel operation carries out signal condition, A/D conversion to ccd output signal, and FPGA carries out high speed processing to the image data after conversion, complete
At the output for rejecting signal.
Wherein, the hardware design of detection system includes the design of fpga core circuit, the design of Linear Array CCD Driving Circuit,
The design of the interface circuit design and telecommunication circuit of image digitizer.
Further, the software section of detection system completes the design of CCD driver' s timing including the use of DCM；Image digitization
The control interface of converter and the design of correlated-double-sampling timing；Formulate and sorting unit master controller between communication protocol and
The filtering of data message；The acquisition and median filter process of image data；Binary conversion treatment is carried out to filtered image data
With the judgement of foreign matter position；The design of adjustable delay time is carried out to detection signal using the BlockRAM inside FPGA；High pressure
The timing Design of air gun control system；Detect the design of driving timing sequence of indicating circuit；The calibration of CCD pixel position；CCD digitized map
As the storage of data.
As shown in Figures 3 to 5, the control system of the sorting unit of the waste plastic type can be divided into: feed unit, optics
Four unit, culling unit and electronic control unit component parts.
Wherein, the effect of feed unit is to adjust waste plastic to be selected sorting flow, be optical unit observation detection and
The Weeding of culling unit provides safeguard.Material to be selected is adjusted and is arranged by it, its flow velocity is made to keep relatively steady with individual posture
It is fixed, guarantee that waste plastic can be detected in observation area by one by one observation, can be rejected by easily sorting in sorting area.
Wherein, optical unit is the key position of sorting unit, and effect mainly carries out optical detection to waste plastic
Analysis provides accurately sorting information for sorting.It is made of light source, background board, receiver and camera lens, this sorting unit
Light source using xenon lamp and sodium vapor lamp etc.；Background colour uses butadiene rubber conveyer belt, the reflection signal and back for generating waste plastic
Scenery difference is big, to reach preferable separating effect.Receiver, that is, high speed linear array CCD sensor can believe the light on receiving plane
Number it is converted into electric signal, detects optical signal with silicon photocell, its great advantage is low in cost, production, debugging and production
It is easy, subsequent signal processing part parallel circuit is simple, and matched optics uses simple electric eye, simply saturating by two panels
Microscope group is not at needing to adjust, cost is relatively low.For the detection light source that the sorting unit uses for middle infrared ray, principle is radiation
Molecular vibration is caused, the molecular resonance frequency of different plastics is different.
As shown in Figure 6 to 7, the sorting unit of the waste plastic type of the utility model is using optical principle, to object
The constituent and structure of matter are detected, the scientific equipment analyzed and handled.Spectrum can be divided into four parts: light source illumination divides
Light, detection receive and transmission storage display.The effect of NIR light electric explorer is to realize that the standard of photosignal is changed, i.e., is by imaging
Received spectral energy is converted into the electric signal for being easy to measure on system focal plane, and goes out each monochromatic wave by electric signal measurement
Long and intensity, to obtain the characterisitic parameter of studied substance, controller transmits storage display, and function is will to detect reception to turn
The electric signal come that swaps out carries out preliminary treatment, can be stored after processing or send controller to by high-speed transmission interface,
Further data processing and display etc. are carried out to spectroscopic data by controller.
Wherein, as shown in fig. 7, in the present embodiment, the schematic diagram for the different optical frequency trap curves that controller receives,
Near infrared ray photon absorbing intensity goes out each monochromatic wavelength and intensity by electric signal measurement, and image analysis can be used after digitization
Software quickly calculates Wave crest and wave trough, to be judged by operation, the type of the plastic bottle of scanning.Such as the absorption intensity of PET
Trough is in 1660nm, and the absorption intensity trough of PVC is in 1715nm.Calculate after judging the type of plastic bottle, by controller to
High pressure air rifle, which issues, rejects signal, and different plastic bottles is blown with compressed air stream, is sent into different specification areas.
As shown in figure 8, the invention also discloses a kind of method for separating of waste plastic type, comprising the following steps:
S1, power-up initializing, waste plastic is placed on conveying mechanism；
S2, infrared light scanning light source are scanned waste plastic；
S3, NIR light electric explorer detect scanning signal, and will test information and be sent to control mechanism；
S4, control mechanism are analyzed and processed detection information, judge whether the waste plastic passed through should exclude；If
It is, into S5, if it is not, then entering S6；
S5, high-pressure jet mechanism sprays compressed air, by waste plastic delivery to abandoned stope；
S6, high-pressure jet mechanism do not work, and waste plastic freely falling body falls into collecting region.
The utility model irradiates the SPECTRAL DIVERSITY of different plastics kinds by infrared light scanning light source, to different types of
Waste plastic is sorted, and the classification effectiveness of waste plastic is substantially increased, and improves the resource reusing rate of domestic waste, is led to
It crosses more accurately classification and improves the value of product, while preferably protecting environment, it is practical.
The above-mentioned technology contents that the utility model is only further illustrated with embodiment, in order to which reader is easier to understand,
But the embodiments of the present invention is not represented is only limitted to this, any technology done according to the utility model extends or recreation,
By the protection of the utility model.The protection scope of the utility model is subject to claims.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201821455578.6U CN208906167U (en) | 2018-09-05 | 2018-09-05 | A kind of sorting unit of waste plastic type |
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| CN201821455578.6U CN208906167U (en) | 2018-09-05 | 2018-09-05 | A kind of sorting unit of waste plastic type |
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| CN208906167U true CN208906167U (en) | 2019-05-28 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971026A (en) * | 2018-09-05 | 2018-12-11 | 深圳市朗坤生物科技有限公司 | A kind of sorting unit and its method for separating of waste plastic type |
| CN113095388A (en) * | 2021-04-01 | 2021-07-09 | 福建师范大学 | Solid waste plastic material identification method based on double-layer classification algorithm |
| CN114850078A (en) * | 2022-05-23 | 2022-08-05 | 安徽大学 | Dark plastic material sorting unit system based on raman spectrum |
-
2018
- 2018-09-05 CN CN201821455578.6U patent/CN208906167U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971026A (en) * | 2018-09-05 | 2018-12-11 | 深圳市朗坤生物科技有限公司 | A kind of sorting unit and its method for separating of waste plastic type |
| CN113095388A (en) * | 2021-04-01 | 2021-07-09 | 福建师范大学 | Solid waste plastic material identification method based on double-layer classification algorithm |
| CN113095388B (en) * | 2021-04-01 | 2023-06-30 | 福建师范大学 | Solid waste plastic material identification method based on double-layer classification algorithm |
| CN114850078A (en) * | 2022-05-23 | 2022-08-05 | 安徽大学 | Dark plastic material sorting unit system based on raman spectrum |
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Address after: Honghualing environment Park, 56 Longling South Road, Pingxi community, Pingdi street, Longgang District, Shenzhen City, Guangdong Province 518000 Patentee after: Shenzhen Langkun Biomass Energy Co.,Ltd. Country or region after: China Address before: Honghualing environment Park, 56 Longling South Road, Pingxi community, Pingdi street, Longgang District, Shenzhen City, Guangdong Province 518000 Patentee before: SHENZHEN LANGKUN BIOTECHNOLOGY CO.,LTD. Country or region before: China |