JP2005181075A - Separation method of glass cullet for vehicle and its device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a separation method of glass cullet for a vehicle and its device capable of separating excellently both glass cullets from the glass cullet wherein UV cut glass cullet and clear glass cullet are mixed. <P>SOLUTION: A glass cullet group wherein the UV cut glass cullet 30 and the clear glass cullet 32 are mixed is conveyed into a shielding chamber 50 by a conveyor 26. The glass cullet group conveyed into the shielding chamber 50 is irradiated with ultraviolet light having a wavelength band of about 380 nm from black lights 40, 40. When the UV cut glass cullet 30 fluorescing by irradiation of the ultraviolet light is detected by a CCD camera 42 through a visual field 54, a controller controls an air nozzle 44 by its output signal to thereby jet out compressed air toward the UV cut glass cullet 30. Hereby, the UV cut glass cullet 30 is blown down and recovered into a UV cut glass cullet recovery part 56. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to separation of a glass cullet for a vehicle for separating a UV cut glass cullet and a normal glass cullet (hereinafter referred to as “clear glass cullet”) from a cullet of a waste glass plate used in an automobile or a railway vehicle. The present invention relates to a method and an apparatus thereof.

  In order to give an ultraviolet ray blocking (UV (Ultra Violet) cut) function to a window glass of an automobile or a railway vehicle, a UV cut glass manufactured by containing a UV cut material such as cerium oxide is used.

  By the way, in recent years, from the viewpoint of preventing global environmental pollution, the legalization of recycling of scrapped vehicles has been advocated, and it is desired to use waste glass plates removed from scrapped vehicles as recycled materials. In this case, the waste glass plate can be culleted by a crusher, and the waste glass plate can be used as a recycled material for the plate glass by putting it into a float kiln for producing plate glass such as a float kiln. However, when UV cut glass cullet and normal clear glass cullet are mixed, it cannot be regenerated as UV cut glass, so it is necessary to separate UV cut glass cullet from clear glass cullet.

  Then, although the operation | work which isolate | separates both glass cullets is required, it is not easy to isolate | separate the clear glass cullet and UV cut glass cullet which do not change in appearance. Therefore, according to such circumstances, conventionally, the clear glass and the UV cut glass are stored separately, and are culleted separately by the crushers installed at these storage locations, and this is separately stored at the storage location. I kept it.

On the other hand, although it is not a glass cullet sorter, a color sorter that sorts foods such as soybeans and nuts by color has been proposed (for example, Patent Document 1). This color sorter has a plurality of memories storing sorting reference value data corresponding to the sorting raw material of the sorting object, and the sorting reference values stored in the memory corresponding to the sorting object among these memories The data is read out, and the setting value of each sorting function element is changed according to this data. After that, by irradiating the object to be sorted flowing through the chute with light, judging the quality of the object to be sorted according to the intensity of the reflected light, and blowing the defective product by compressed air from the air gun. Separate from good products. If this sorter is used, it is considered that transparent glass and colored glass (such as those in which a sintered body of black ceramics is formed) can be separated.
JP-A-8-309294

  However, in the conventional separation method in which UV cut glass and clear glass are collected, crushed and stored in different places, a vast storage place is required and a plant having a crusher for culleting is required. However, there is a drawback that the initial cost and the running cost become enormous.

  Moreover, since the color sorter of Patent Document 1 is a device that sorts a sorting object based on the intensity of reflected light from the sorting object, the clear glass cullet and the UV cut glass cullet that do not change in appearance are separated. There was a problem that it was difficult.

  This invention is made | formed in view of such a situation, Separation of the glass cullet for vehicles which can isolate | separate both glass cullet well from the glass cullet group in which UV cut glass cullet and clear glass cullet were mixed. It is an object to provide a method and apparatus.

  In order to achieve the above object, the present invention is a glass cullet group used for vehicles, and a glass in which a UV cut glass cullet and a clear glass cullet containing cerium oxide as an ultraviolet blocking material are mixed. In the separation method of the glass cullet for vehicles that separates the UV cut glass cullet and the clear glass cullet from the cullet group, the wavelength of about 380 nm from the illumination means is applied to the glass cullet group in which the UV cut glass cullet and the clear glass cullet are mixed. The UV-cut glass cullet that has been irradiated with the light of the band and is fluorescent when irradiated with the light is detected by the detection means, and the UV-cut glass cullet detected by the detection means is separated from the clear glass cullet by the separation means. Of glass cullet for vehicles To provide a release method.

  Further, in order to achieve the above object, the present invention is a glass cullet group used for vehicles, and is a mixture of a UV cut glass cullet and a clear glass cullet containing cerium oxide which is an ultraviolet blocking material. In a vehicle glass cullet separating apparatus that separates a UV cut glass cullet and a clear glass cullet from a glass cullet group, the transport of the glass cullet group mixed with the UV cut glass cullet and the clear glass cullet into a light shielding chamber Means, illuminating means for irradiating the glass cullet group carried from the conveying means to the light shielding chamber with light having a wavelength band of about 380 nm, and the UV cut fluorescent by irradiating the light with the illuminating means Detection means for detecting glass cullet and U detected by the detection means There is provided an apparatus for separating a glass cullet for a vehicle, characterized by having air injection means for injecting compressed air toward the cut glass cullet and blowing the UV-cut glass cullet toward the UV-cut glass cullet collection unit. .

  In the present invention, when the UV cut glass cullet is irradiated with light having a wavelength band of about 380 nm, the cerium oxide contained in the UV cut glass cullet is excited by the light, and the entire UV cut glass cullet is fluorescent (426 nm light). ) To pay attention to. That is, the light in the wavelength band of about 380 nm in the present invention means light in a wavelength band in which cerium oxide fluoresces white. If cerium oxide fluoresces, the light to be irradiated has a width in the wavelength band. May be.

  Paying attention to the characteristics of such UV-cut glass cullet, the present invention carries the glass cullet group in which UV-cut glass cullet and clear glass cullet are mixed into the light-shielding chamber by the transport means, and the above-mentioned light-shielded chamber is carried The glass cullet group is preferably irradiated with ultraviolet light having a wavelength band of about 380 nm from an illumination means such as black light. Then, the UV cut glass cullet that is fluorescent when irradiated with ultraviolet light is detected by the detecting means. And by blowing compressed air from an air injection means toward the UV cut glass cullet detected by the detection means, the UV cut glass cullet is blown off toward the UV cut glass cullet collection part and separated from the clear glass cullet.

  In this separation step, preferably, when the glass cullet is discharged from the outlet of the conveying means, and the UV cut glass cullet is detected from the glass cullet by the detection means, the UV cut glass cullet is removed from the air injection means. Blow off with compressed air and collect in UV cut glass cullet collection section. In this case, the clear glass cullet freely falls by drawing a parabola from the exit of the conveying means, and is collected by the clear glass cullet collecting unit installed at the dropping place.

  As mentioned above, according to this invention, both glass cullet can be favorably isolate | separated from the glass cullet in which UV cut glass cullet and clear glass cullet were mixed. In addition, the present invention, in which both glass cullets are mixed and separated, can carry out the recovery, crushing, and storage of the UV cut glass and the clear glass with the same equipment, so that the initial cost and running cost of the equipment can be greatly reduced.

  According to the method and apparatus for separating a glass cullet for a vehicle according to the present invention, both glass cullets can be satisfactorily separated from a glass cullet mixed with a UV-cut glass cullet and a clear glass cullet. Since glass, clear glass can be collected, crushed, and stored in the same facility, the initial cost and running cost of the facility can be greatly reduced.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a vehicle glass cullet separation method and apparatus according to the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is an overall structural view schematically showing a glass cullet separation facility 12 in which the glass cullet separation device 10 for a vehicle according to the first embodiment is installed.

  The glass cullet separation facility 12 includes a glass recovery unit 14, a glass crushing device 16, a leveling device 18, a glass cullet separation device 10, and a glass cullet storage unit 20.

  In the collection box 15 of the glass collection unit 14, a large number of vehicle waste glass plates (waste glass plates in which UV cut glass and clear glass are mixed) G, G... Yes. These waste glass plates G are carried out of the collection box 15 by a robot (not shown), transferred to the conveyor 22, and then carried into the glass crushing device 16 by the conveyor 22, where they are crushed into cullet. In the glass breaker 16, the waste glass plate G was crushed in a state where the UV cut glass and the clear glass were mixed, and the culleted glass cullet group was a mixture of the UV cut glass cullet and the clear glass cullet. It has become a thing.

  The glass cullet group in which both glass cullets are mixed is conveyed to the leveling device 18 by the conveyor 24, where the excessive glass cullet and the excessive glass cullet are removed, and the glass cullet to be loaded into the glass cullet separation device 10 is removed. The size is leveled. Excessive glass cullet is separately collected and reintroduced into the glass breaker 16.

  The grouped glass cullet group is transferred to the conveyor (corresponding to the conveying means) 26 of the glass cullet separating apparatus 10 and is carried into the separating apparatus main body 28 by the conveyor 26. Here, after the glass cullet group is separated into the UV cut glass cullet 30 and the clear glass cullet 32 and temporarily stored, the UV cut glass cullet 30 is stored in the storage box 34 of the glass cullet storage unit 20 and stored. Clear glass cullet 32 is stored separately in box 36.

  As shown in FIG. 2, the glass cullet separating apparatus 10 includes a conveyor 26, a separating apparatus body 28, a black light (corresponding to illumination means) 40, a CCD camera (corresponding to detecting means) 42, and an air nozzle (corresponding to separating means). 44 etc.

  The UV-cut glass cullet 30 and the clear glass cullet 32 carried into the separation device main body 28 by the conveyor 26 are put in a light shielding chamber 50 formed between an upper casing 46 and a lower casing 48 constituting the separation device main body 28. Led. Above the light shielding chamber 50, a plurality of (six in FIG. 2) straight bar-shaped black lights 40, 40... That irradiate these glass cullets 30 and 32 with ultraviolet light of approximately 380 nm are transported in the conveyor 26. Are arranged in parallel in the orthogonal direction. Further, three black lights 40 are accommodated in the reflectors 52 and 52, respectively, and the ultraviolet light from the black light 40 is efficiently irradiated to the glass cullets 30 and 32 by the reflectors 52. The black light 40 is a standard product slightly longer than the width of the conveyor 26 and uniformly irradiates the glass cullets 30 and 32 conveyed by the conveyor 26 with ultraviolet light.

  The two reflectors 52, 52 are spaced apart by a predetermined distance, and a field of view 54 of the CCD camera 42 is formed between them. The visual field 54 is formed in parallel with the black light 40 and is positioned above the trajectory through which the glass cullets 30 and 32 immediately after being emitted from the conveyor 26 pass. The UV cut glass cullet 30 is detected by the CCD camera 42.

  That is, when the UV cut glass cullet 30 is irradiated with ultraviolet light of approximately 380 nm from the black light 40, the cerium oxide contained in the UV cut glass cullet 30 is excited, and the entire UV cut glass cullet 30 becomes pale with a wavelength of approximately 426 nm. Fluoresce. On the other hand, the clear glass cullet 32 that does not contain a material excited by ultraviolet light does not fluoresce. Therefore, when the fluorescent UV cut glass cullet 30 passes below the field of view 54, light having a wavelength different from the reflected light (ultraviolet light) of the clear glass cullet 32 is emitted and detected by the CCD camera 42. The CCD camera 42 is a line sensor camera in which light receiving elements are arranged along the visual field 54, and detects the UV cut glass cullet 30 emitted by the conveyor 26.

  The air nozzle 44 is provided at a position above the downstream locus of the locus through which the glass cullets 30 and 32 discharged from the conveyor 26 pass and located below the visual field 54. A number of air nozzles 44 are arranged in parallel with the black light 40 at a predetermined interval. The number of air nozzles 44 and the number of light receiving elements of the CCD camera 42 are not in a one-to-one correspondence, and a plurality of light receiving elements are assigned to one air nozzle 44. Not shown so that when an output signal is detected from at least one light receiving element among a plurality of light receiving elements corresponding to one air nozzle 44, compressed air is ejected from the air nozzle 44 corresponding to the light receiving element. The solenoid valve of the air nozzle 44 is controlled to open and close by the controller.

  That is, when the CCD camera 42 detects the UV cut glass cullet 30 through the field of view 54, the air nozzle 44 ejects compressed air at a timing when the UV cut glass cullet 30 passes below the air nozzle 44. So that it is controlled. As a result, the UV cut glass cullet 30 is blown off by the compressed air and falls to the UV cut glass cullet collection part 56 formed below the air nozzle 44. Further, the clear glass cullet 32 is not blown off by the compressed air, but is freely dropped while drawing a parabola as it is, and is recovered by the clear glass cullet recovery unit 58. In addition, since each collection | recovery parts 56 and 58 are formed in the lower casing 48, and are partitioned off by the partition plate 60, the UV cut glass cullet 30 and the clear glass cullet 32 are not mixed.

  Reference numeral 62 denotes an optical system of the CCD camera 42, and a UV cut filter 64 for cutting light having a wavelength of 400 nm or less is attached to the objective part of the optical system 62. The UV cut filter 64 cuts the ultraviolet light of approximately 400 nm or less, mainly about 380 nm, of the black light 40, and only the above-mentioned 426 nm light is detected by the CCD camera 42, and the accuracy is improved. Since the strong ultraviolet light by the lights 40, 40... Is also removed, the malfunction of the CCD camera 42 due to the ultraviolet light is prevented. Reference numeral 66 denotes a transparent plate.

  Next, the operation of the glass cullet separating apparatus 10 configured as described above will be described.

  A glass cullet group in which the UV cut glass cullet 30 and the clear glass cullet 32 are mixed is carried into the light shielding chamber 50 by the conveyor 26. Then, the glass cullet group carried into the light shielding chamber 50 is irradiated with ultraviolet light having a wavelength band of approximately 380 nm from the black lights 40, 40. Then, when the UV cut glass cullet 30 that has been fluorescent when irradiated with ultraviolet light is detected by the CCD camera 42 via the field of view 54, a controller (not shown) generates an output signal from the light receiving element corresponding to the position. The air nozzle 44 corresponding to the light receiving element is controlled to inject compressed air toward the UV cut glass cullet 30. As a result, the UV cut glass cullet 30 is blown off and collected by the UV cut glass cullet collection unit 56. Further, the clear glass cullet 32 freely falls by drawing a parabola from the exit of the conveyor 26 and is collected by the clear glass cullet collection unit 58.

  Thereby, according to the glass cullet separation apparatus 10, both glass cullet 30 and 32 can be favorably isolate | separated from the glass cullet group in which the UV cut glass cullet 30 and the clear glass cullet 32 were mixed. Moreover, since the glass cullet separation apparatus 10 that separates both glass cullets 30 and 32 by mixing them can perform the recovery, crushing, and storage of the UV cut glass and the clear glass with the same glass cullet separation equipment 12, the glass cullet separation is performed. The initial cost and running cost of the facility 12 can be greatly reduced.

  FIG. 3 is a cross-sectional view of a main part of the glass cullet separating apparatus 100 according to the second embodiment, and the same or similar members as those in the glass cullet separating apparatus 10 shown in FIG. To do.

  The glass cullet separating apparatus 100 shown in the figure is characterized in that the reflectors 52, 52 of the black light 40 are formed in an arc shape, and the black lights 40, 40... Are staggered along the inner peripheral surface of the reflectors 52, 52. By arranging, the black light 40 as much as possible is arranged in a limited space, and the ultraviolet light from the black lights 40, 40... At the arc center O of the arc-shaped inner peripheral surface of the reflectors 52, 52. The glass cullet passing through the center O is detected by the CCD camera 42 through the field of view 54. Thereby, since the glass cullet 30 and 32 is irradiated with a large amount of ultraviolet light, the UV cut glass cullet 30 is surely fluorescent, and thus the separation accuracy is improved.

  In the embodiment, the UV cut filter 64 is used to cut light of a wavelength region of 400 nm or less, and the CCD camera 42 is detected to detect 426 nm light, thereby detecting the UV cut glass cullet 30. The detection method is not limited to this, and the UV cut glass cullet 30 may be detected by detecting the color, that is, measuring the spectral spectrum and detecting the spectrum having a wavelength of 426 nm.

Whole structure figure of glass cullet separation equipment to which glass cullet separation device for vehicles of a 1st embodiment was applied The principal part expanded sectional view of the glass cullet separation device for vehicles of a 1st embodiment. The principal part expanded sectional view of the glass cullet separation device for vehicles of a 2nd embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10,100 ... Glass cullet separation apparatus, 12 ... Glass cullet separation equipment, 14 ... Glass collection | recovery part, 16 ... Glass breaker, 18 ... Leveling apparatus, 20 ... Glass cullet storage part, 26 ... Conveyor (equivalent to a conveyance means) 28 ... Separator main body, 30 ... UV cut glass cullet, 32 ... Clear glass cullet, 40 ... Black light (equivalent to illumination means), 42 ... CCD camera (equivalent to detection means), 44 ... Air nozzle (air injection means) 50 ... Light-shielding chamber, 52 ... Reflector, 54 ... Field of view

Claims (2)

A group of glass cullet used for vehicles, from a group of glass cullet containing UV-cut glass cullet and clear glass cullet containing cerium oxide which is an ultraviolet blocking material, UV-cut glass cullet and clear glass cullet In the method for separating the glass cullet for vehicle,
The glass cullet group in which the UV cut glass cullet and the clear glass cullet are mixed is irradiated with light having a wavelength band of about 380 nm from the illumination means,
Detecting the UV cut glass cullet that is fluorescent by irradiating the light with a detecting means,
A method for separating a glass cullet for a vehicle, wherein the UV cut glass cullet detected by the detecting unit is separated from the clear glass cullet by a separating unit. A group of glass cullet used for vehicles, from a group of glass cullet containing UV-cut glass cullet and clear glass cullet containing cerium oxide which is an ultraviolet blocking material, UV-cut glass cullet and clear glass cullet In a glass cullet separation device for vehicle,
Conveying means for carrying the glass cullet group in which the UV cut glass cullet and the clear glass cullet are mixed into a light shielding chamber;
Illumination means for irradiating the glass cullet group carried into the light shielding chamber from the transport means with light having a wavelength band of approximately 380 nm;
Detecting means for detecting the UV cut glass cullet that has been fluorescent by irradiating the light with the illumination means;
Air injection means for injecting compressed air toward the UV-cut glass cullet detected by the detection means, and blowing the UV-cut glass cullet toward the UV-cut glass cullet collection unit;
An apparatus for separating a glass cullet for vehicles.

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