JPH0885614A - Garbage Conveyor at Garbage Disposal Facility - Google Patents

Abstract

(57) [Summary] [Purpose] In a refuse transfer device in a refuse treatment facility equipped with a device for detecting inappropriate treatment in a refuse treatment furnace, the labor saving and cost reduction of the sorting work of the inappropriate treatment are attempted. Further, the deterioration of the resolution of the monitor image and the accuracy of discriminating the inappropriate processing object is eliminated. [Arrangement] An X-ray fluoroscopic inspection apparatus 3 which irradiates X-rays 35 from an X-ray source on dust being conveyed, obtains an X-ray fluoroscopic image from a signal obtained from a first X-ray detector 34A, and displays it on a monitor 39A.
8A and the dust being conveyed on the upstream side of the X-ray irradiation position of this X-ray fluoroscopic inspection apparatus is irradiated with X-rays 35 from the X-ray source, and an X-ray fluoroscopic image is obtained by a signal obtained from the second X-ray detector 32A. An X-ray inspection device for automatic discrimination 36A that obtains image processing to determine whether or not the dust is inappropriate for processing and outputs a notification signal when the dust is inappropriate for processing is provided.
Two X-ray sources corresponding to the second X-ray detectors 34A and 32A are used.
One X-ray source 11A provided with one X-ray irradiation unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste transporting apparatus for transporting waste transported to a waste treatment facility to a processing furnace, and particularly to a non-combustible material, a material mainly made of metal (metal material), etc. The present invention relates to an improvement of a waste transport device in a waste treatment facility equipped with a device for detecting metal substances and the like mixed in the waste in order to remove it during transport.

[0002]

2. Description of the Related Art Today, most of the generated garbage is collected in municipalities except for self-treatment. Collection is carried out using a garbage truck or a general truck depending on the type of garbage. For example, burning garbage (paper, wood products, cotton, clothing, etc.),
Raw garbage (food scraps, etc.) and recyclable garbage (plastic, glass bottles, metal scraps, etc.) are collected by a garbage truck, and oversized garbage (home appliances, large items such as furniture) are collected by a general truck. Further, even in the case of collecting by garbage truck, burning garbage and raw garbage are collected at the same time, but recyclable garbage is generally collected on a different day or day.

The collected waste is sent to a waste treatment facility in the municipality and is mainly incinerated in a treatment furnace (incinerator, crushing furnace, etc.). In this incineration process, incombustibles,
In particular, metal objects such as iron gas cylinders are not only dangerous to explode, but when a fluidized bed furnace is used as an incinerator, it is not melted and the circulating fluidized sand outlet at the furnace bottom is blocked. It may also stop the operation of the furnace or cause a failure. In addition, the motor and large porcelain in the bulky refuse, which escaped the removal and removal before processing, also hinder the smooth operation of the incinerator.

Therefore, the above-mentioned gas cylinders, motors and other metal objects, large porcelains and other non-combustible materials, or those containing these non-combustible materials (which are referred to as unsuitable materials) are primarily collected by a garbage truck. Occasionally, an operator visually selects and removes secondary or finally on a refuse transporter in a treatment facility.

Recently, in order to save labor in the above-mentioned sorting and removal work on the waste transport device in the treatment facility, the waste transport device which transports the waste transported to the waste treatment facility to the processing furnace is in use. A device equipped with an X-ray fluoroscopic inspection device for detecting whether or not is an unsuitable object is considered.

This is because the dust put on a belt conveyor is irradiated with X-rays, and the X-ray fluoroscopic image is observed on a monitor to judge whether or not the dust is inappropriate for processing. If the material is unsuitable for processing, it is to be removed from the belt conveyor (Japanese Patent Application No. 6-152326).
No.).

[0007]

In the above-mentioned prior art, it is possible to judge whether or not the dust on the belt conveyor is unsuitable for processing, but it can be judged only by the operator observing it on the monitor, and the judgment subject is Since they are workers only, the labor saving of the work for sorting the inappropriate treatments on the waste transport device is not satisfactory.

Therefore, in order to further improve the labor saving while maintaining the function of observing with the monitor, in addition to the X-ray fluoroscopic inspection apparatus, an X-ray inspection apparatus for automatic discrimination for automatically discriminating an inappropriate processing object. Can be installed.
In this X-ray inspection apparatus for automatic discrimination, dust sent by a belt conveyor is irradiated with X-rays to obtain an X-ray fluoroscopic image,
A method using a method of binarizing it with a predetermined threshold value in consideration of a pixel density value of an unsuitable object and counting pixels having a density value corresponding to the unsuitable object, and various unsuitable objects,
X-ray fluoroscopic images from various directions are stored in advance as sample patterns, and there is a method using a pattern recognition method in which the X-ray fluoroscopic images of dust actually sent by a belt conveyor are compared with the sample patterns. .

In these X-ray inspection apparatuses for automatic discrimination, particularly those using the pattern recognition method, edge extraction or 2 is performed in order to accurately collate the X-ray fluoroscopic image with the sample pattern.
Since it is necessary to perform the digitization processing and the like, it takes a lot of processing time. Therefore, when the automatic discrimination X-ray inspection apparatus is attached to the conveyor, the automatic discrimination X-ray inspection apparatus is provided on the upstream side of the X-ray fluoroscopic inspection apparatus that merely obtains the X-ray fluoroscopic image. It is provided at a predetermined distance from the device.

In any case, two X-ray detectors are required, one for the X-ray fluoroscopy inspection apparatus and one for the automatic discrimination X-ray inspection apparatus. On the other hand, it is conceivable that there is only one X-ray source, but in this case, the X-ray source must be positioned higher above the conveyor in order to widen the X-ray irradiation area. In addition, since X-ray attenuation due to this (attenuation in inverse proportion to the square of the distance) must be covered, a large output is required, which is not practical and the resolution of the obtained image is high. This causes problems such as poor visibility of the X-ray fluoroscopic image displayed on the monitor and a decrease in the accuracy of discriminating an inappropriate processing object.

Therefore, the X-ray source is the same as the X-ray detector in the X-ray detector.
It is conceivable to provide two units, one for the fluoroscopic inspection device and one for the X-ray inspection device for automatic discrimination (see FIG. 3).
There are merits and demerits, such as problems such as an increase in cost and an increase in the number of parts, and there has conventionally been a demand for improvement in this respect.

Further, when the width of the conveyor is increased to increase the waste processing capacity, one X-ray source and one X-ray detector are provided for the X-ray fluoroscopic inspection apparatus and the X-ray inspection apparatus for automatic discrimination. In the above-described configuration in which pairs are provided, an additional pair of X-ray source and X-ray detector is required, and in the case illustrated in FIG. 4, an additional 2 pairs (4 pairs in total) must be provided. Became more prominent. Here, when the conveyor width is widened, two pairs of X-ray sources and X-ray detectors are arranged side by side in the conveyor width direction as illustrated in FIG. This is because the X-ray irradiation area must be widened, and the resolution of the image obtained as described above will deteriorate.

In FIGS. 3 and 4, reference numeral 30 denotes a belt conveyer for conveying dust (not shown), which runs in the direction of arrow a. 31A to 31C are X-ray sources for X-ray inspection apparatuses for automatic discrimination, 32A to 32C are X-ray detectors for X-ray inspection apparatuses for automatic discrimination, and 33A to 33C are X-ray sources for X-ray fluoroscopy inspection apparatuses, 34A to 34C are X-ray detectors for X-ray fluoroscopy, and 35 is an X-ray (X-ray flux). In addition, 36A ~ 3
6C is an X-ray inspection apparatus main body for automatic discrimination, and X-rays of the above-mentioned dust are generated by signals from X-ray detectors 32A to 32C obtained by irradiating dust during transportation with X-rays 35 from X-ray sources 31A to 31C. A fluoroscopic image is obtained, and image processing is performed on the fluoroscopic image to determine whether or not the dust is an inappropriate processing object. When the transparent object is an inappropriate processing object, a processing inappropriate object detection notification signal is output. Reference numerals 37A to 37C are alarm devices which issue an alarm upon receipt of the processing improper object detection notification signal. Reference numerals 38A to 38C are X-ray fluoroscopic inspection apparatus main bodies, and X-rays of the dust are generated by signals from X-ray detectors 34A to 34C obtained by irradiating dust during transportation with X-rays 35 from X-ray sources 33A to 33C. Obtain a perspective image and monitor the television 39A-39
It is displayed on C.

An object of the present invention is to make it possible to further reduce the labor of the work of selecting unsuitable processing while reducing the cost and the number of parts while maintaining the function of observing with a monitor, and to lower the image resolution. The object of the present invention is to provide a waste transport device in a waste disposal facility that does not reduce the accuracy of discrimination of inappropriate processing objects.

[0015]

Means for Solving the Problems The above-mentioned object is obtained by irradiating X-rays from an X-ray source on the refuse being conveyed in a refuse conveying apparatus for conveying the refuse conveyed to the refuse treatment facility to a processing furnace. An X-ray fluoroscopic inspection apparatus which obtains an X-ray fluoroscopic image of the dust by a signal from the first X-ray detector and displays it on a monitor so that it can be observed whether or not the object is inappropriate for processing, and an X-ray fluoroscopic inspection apparatus X X on the dust that is being transported on the upstream side of the line irradiation position.
An X-ray fluoroscopic image of the dust is obtained by a signal from the second X-ray detector obtained by irradiating X-rays from a radiation source, and image processing is performed to determine whether or not the dust is inappropriate for processing. An X-ray inspection device for automatic discrimination that outputs a processing-unsuitable object detection notification signal when the object is unsuitable for processing, and the X-ray sources corresponding to the first and second X-ray detectors have two X-ray irradiators. This is achieved by sharing one X-ray source provided.

[0016]

The X-ray fluoroscopic inspection apparatus obtains an X-ray fluoroscopic image of dust being conveyed and displays it on the monitor, and it is possible to observe whether or not the processing is inappropriate as in the conventional apparatus. Further, the automatic discrimination X-ray inspection apparatus obtains an X-ray fluoroscopic image of dust being conveyed, performs image processing on it to determine whether or not the dust is inappropriate for processing, and if the dust is inappropriate for processing, does not perform appropriate processing. Since the object detection notification signal is output, the labor of sorting the inappropriate processing objects is further reduced. In this case, the image processing in the X-ray inspection apparatus for automatic discrimination is
It takes more time than the X-ray fluoroscopic inspection device displays the X-ray fluoroscopic image on the monitor, but X-rays are irradiated to X-rays on the dust that is being conveyed upstream of the X-ray irradiation position of the X-ray fluoroscopic inspection device.
A signal for the image processing is obtained from the line detector. Therefore, it is possible to perform image processing in the X-ray inspection apparatus for automatic discrimination before the display on the monitor and discriminate whether or not the trash being conveyed is inappropriate for processing. As a result, it is possible to further perform visual inspection by the monitor of the X-ray fluoroscopic inspection apparatus after the automatic determination as to whether or not the processing is inappropriate.

Further, the X-ray irradiation to the first and second X-ray detectors is performed by one X-ray source, and the cost and the number of parts are reduced. And this one X-ray source is one X-ray source provided with two X-ray irradiation units, and one X-ray irradiation unit is provided.
There is no restriction on the arrangement position in the case of the X-ray source of the stand (the restriction that it must be positioned higher above the conveyor to widen the X-ray irradiation area), and simply one of the two X-ray irradiation units It is only necessary to direct the other toward the first X-ray detector side and the other toward the second X-ray detector side, and there is no need to widen the X-ray irradiation area. This will not reduce the image resolution,
Further, the accuracy of discriminating unsuitable processing will not be lowered.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a main part of an embodiment of a waste transport device in a waste treatment facility according to the present invention. In FIG. 1, 11A is an X-ray source provided with two X-ray irradiation units, and is composed of, for example, an X-ray tube device provided with two X-ray irradiation units arranged at a predetermined angle around the tube axis. The X-ray source 11A may be provided with an X-ray tube and a diaphragm, and two X-ray irradiation units may be provided by the diaphragm configuration such as the shape of the diaphragm, the position, and the number of parts. In addition, in FIG. 1, the same reference numerals as those in FIG. 3 indicate the same or corresponding portions.

That is, in the apparatus of the present invention, the X-ray detector 32
X-ray source corresponding to A, 34A (31A, 33A in FIG. 3
X-ray source corresponding to the X-ray source 11A, which is provided with two X-ray irradiators, in other words, capable of irradiating the X-rays 35 from two locations.
It is shared by one unit. In this case, the two X
The radiation irradiator (particularly its position and direction) is given by the shape of the diaphragm attached to the X-ray tube 11A, and the time required for the automatic discrimination of the automatic discrimination X-ray inspection apparatus main body 36A and the traveling of the belt conveyor 30. The X-ray detectors 32A and 34A arranged with a mutual distance set from the speed etc.
The lines 35 and 35 are formed so as to be properly incident.

In the above-described apparatus of the present invention, when dust (not shown) on the belt conveyor 30 reaches a predetermined position in front of the X-ray detector 32A (on the left side in the figure), the dust detector (not shown) detects it. As a result, the X-ray source 11A irradiates the X-ray 35 for a certain period of time, and the X-ray inspection apparatus main body 3 for automatic discrimination is used.
6A is an X-ray of the trash due to a signal from the X-ray detector 32A.
An X-ray fluoroscopic image is obtained, image processing is performed on the X-ray image, and it is determined whether or not the dust is an inappropriate processing object. When the processing improper object detection notification signal is output, the alarm device 37A issues an alarm and notifies that the dust that has just passed is a processing improper object (or includes an improper processing object. The same applies hereinafter).

On the other hand, dust (not shown) that has passed through the X-ray detector 32A portion is in front of the X-ray detector 34A (left side in the figure).
When reaching a predetermined position, a dust detector (not shown) detects it. As a result, the X-ray source 11A irradiates the X-ray 35 for a certain period of time, and the X-ray fluoroscopic inspection apparatus main body 38A causes the X-ray detector 3 to operate.
An X-ray fluoroscopic image of the dust is obtained by the signal from 4A and displayed on the television monitor 39A.

An operator (not shown) can know from the alarm that the dust that has just passed is an unsuitable material,
Also, by observing on the television monitor 39A, it is possible to confirm whether or not it is an inappropriate material for processing. If the material is unsuitable for processing, it is removed from the belt conveyor 30. The removal of the unsuitable material is performed by using an unsuitable material removal mechanism (not shown) for automatically removing the unsuitable material from the belt conveyor 30 on the downstream side of the X-ray detector 32A or the X-ray detector 34A, mainly in the X direction.
If the processing inappropriate object detection notification signal from the automatic discrimination X-ray inspection apparatus main body 36A is provided on the downstream side of the line detector 34A and is used as a drive signal of the processing inappropriate object removing mechanism by delaying the signal for a certain period of time, the processing inappropriate object is detected. It is possible to automatically remove objects.

If the dust passing through the X-ray detector 32A portion (the dust inspected by the automatic X-ray inspection device) is not suitable for processing, the alarm 37A gives an alarm, so that the observer of the television monitor 39A observes it. From that point on, it is only necessary to strengthen the monitoring of unsuitable materials, and when there is no alarm, it is not necessary to concentrate too much on observation, so the burden of long-term observation work is reduced. Normally, the final judgment of the inappropriate processing object to be removed is made through the observation on the television monitor 39A.
It is made by the manual operation of the observer A.

Here, when the X-ray 35 irradiation timing and irradiation time are finely adjusted, when the two X-ray irradiation portions of the X-ray source 11A are formed by separate and independent diaphragms, each of the diaphragms can be adjusted. A shutter may be provided and controlled by controlling the shutter.

As the automatic discrimination X-ray inspection apparatus (the automatic discrimination X-ray inspection apparatus main body 36A), the belt conveyor 3 is used.
The dust sent at 0 is irradiated with X-rays to obtain an X-ray fluoroscopic image, which is binarized with a predetermined threshold value in consideration of the pixel density value of the processing-unsuitable object to obtain a value corresponding to the processing-unsuitable object. X-ray fluoroscopic images from various directions are stored in advance as a sample pattern for those using a method of counting pixels and various inappropriate treatments, and the X-rays of dust actually sent by the belt conveyor 30. For example, there is a method using a pattern recognition method for matching a perspective image with the above sample pattern.

Further, the X-ray detector 32A is divided into two in the direction of conveyance of dust, one X-ray detecting portion is covered with a layer having a wavelength selectivity of X-rays, and the other X-ray detecting portion covers it. The dust passing through between the X-ray source 11A and the X-ray detector 32A without being formed and using the difference signal of the signals from both X-ray detectors at the time of X-ray irradiation is a low atomic number substance or a high atomic number substance. If it is a numbered substance, an image is obtained by color-coding or changing the image density according to the selection result, and when the color or concentration pixel on the high atomic number substance side is counted, and it becomes equal to or more than a predetermined threshold value, The alarm may be issued from the alarm device 37A when it is determined that the object is not suitable for processing.

Further, the automatic discrimination X-ray inspection apparatus (automatic discrimination X-ray inspection apparatus main body 36A) may also perform image processing such as distance measurement and missing determination. For example, even an unsuitable material such as a gas cylinder, which has a risk of explosion, can be processed in a processing furnace if it has a hole or is significantly corroded. Further, the maximum size that can be processed differs depending on the scale of the processing furnace, and it is often the case that even a metal object must be judged to be processable if it is a certain size or smaller. In such a case, the diameter of the hole of the processing-unsuitable object such as a gas cylinder, the presence / absence determination or the size measurement of the processing-unsuitable object itself such as the gas cylinder may be performed in combination with the pattern recognition method. According to this, the automatic discrimination target can be finely adjusted and the discrimination accuracy can be improved.

Each of the image processings requires a longer processing time than obtaining an X-ray fluoroscopic image by the X-ray fluoroscopic inspection apparatus (X-ray fluoroscopic inspection apparatus main body 38A). Therefore, when the automatic discrimination X-ray inspection apparatus is attached to the belt conveyor 30,
The X-ray detector 32A of this X-ray inspection apparatus for automatic discrimination is
It is provided upstream of the X-ray detector 34A of the fluoroscopic inspection apparatus and at a predetermined distance from the X-ray detector 34A of the fluoroscopic inspection apparatus.

The automatic discrimination X-ray inspection apparatus main body 36A
An image in the middle of image processing by, for example, a binarized image or a color-coded image of a dust X-ray fluoroscopic image with a predetermined threshold is displayed on the television monitor 39A in time division with the X-ray fluoroscopic image from the X-ray fluoroscopic inspection apparatus main body 38A. The display may be switched automatically or manually. At that time, various parameters in the image processing of the automatic discrimination X-ray inspection apparatus main body 36A are adjusted by the operation on the side of the X-ray fluoroscopic inspection apparatus main body 38A so that the contrast or coloring of the binarized image or the color-coded image can be changed. May be. Further, when displaying the image of the unsuitable-treatment portion and the other portion in one garbage in different colors, the color of the unsuitable-treatment portion is made to be the same color as the color of the other portion at regular time intervals, and You may make it display on the television monitor 39A as if it were blinking.

Furthermore, among the garbage that is transported one after another,
Although it may be difficult to associate the specific wastes with the downstream side of the belt conveyor 30 even if it is finally determined that the wastes are not suitable for processing, the X-ray detector 34A of the X-ray fluoroscopic inspection apparatus.
A paint spraying mechanism is installed in the vicinity of the downstream side, and the paint spraying mechanism is driven by a viewer's manual operation of the television monitor 39A at a desired time so that the paint can be sprayed on the refuse that is the final judgment inappropriate for processing. May be.

In the above embodiment, the belt conveyor 30 is used.
The X-ray source 11A is arranged above and the X-ray detectors 32A and 34A are arranged below it.
The arrangement positions of the line detectors 32A and 34A are not limited to this example, and the X-ray source 11A and the X-ray detector 32 are not limited thereto.
It may be arranged at any position as long as it has a positional relationship such that dust is transported between the A and 34A. Also, X
The line detectors 32A and 34A are also L-shaped instead of being linear as shown in the drawing, one side of which is raised from the side of the belt conveyor 30 and the other side is arranged so as to cross the upper side of the belt conveyor 30. Alternatively, the X-ray source 11A may be arranged at a position where the X-ray 30 is irradiated with the belt conveyor 30 interposed therebetween.

FIG. 2 is a perspective view showing a main part of another embodiment of the waste transport device in the waste treatment facility according to the present invention. In FIG. 2, 11B and 11C are two Xs, respectively.
An X-ray source equipped with an X-ray irradiation unit, which is the same as the X-ray source 11A in FIG.
It is a radiation source. 2 that are the same as those in FIG. 1 indicate the same or corresponding parts.

Here, in the case of widening the conveyor width in order to increase the dust processing capacity, in order to prevent the deterioration of the image resolution, the X-ray inspection apparatus for automatic discrimination, the X-ray fluoroscopy inspection apparatus, the conveyor This is an example of a case where two sets of X-ray irradiation systems are arranged side by side in the width direction. As can be seen from the figure, in the device of the present invention, there are two X-ray sources 11B and 11C,
Four of the conventional devices shown in FIG. 4 (31B, 31C, 3
3B, 33C) can be halved.

In FIG. 2, the X-ray inspection apparatus main body 36B for automatic discrimination, the alarm 37B and the X-ray fluoroscopic inspection apparatus main body 38 are shown.
B, the television monitor 39B on the right side in the traveling direction of the belt conveyor 30, the X-ray inspection apparatus main body 3 for automatic discrimination.
Although 6C, the alarm device 37C, the X-ray fluoroscopic inspection apparatus main body 38C, and the television monitor 39C are arranged on the left side, respectively, they may be integrally arranged on any one side. In particular, the television monitor 39B and the television monitor 39C are connected to the belt conveyor 3
If they are uniformly arranged adjacent to each other on one side of 0, it is possible to observe the unsuitable objects in the entire width of the belt conveyor 30 at one place, which improves the efficiency of the unsuitable objects selection work and reduces the number of observers. Can be achieved.

FIG. 5 is a diagram for explaining another example of the X-ray source 11A, and FIG. 6 is a plan view of the first diaphragm plate and the second diaphragm plate in FIG. As shown, the X-ray source 11A includes an X-ray tube 51 and a diaphragm 52, and the diaphragm 5 is provided.
Reference numeral 2 denotes a pair of slits sl1 and sl1 fixedly provided in a position near the X-ray irradiation window of the X-ray tube 51 and facing the X-ray irradiation window.
And a second diaphragm plate 52b having a pair of slits sl2, sl2 facing the first diaphragm plate 52a and provided in parallel with the first diaphragm plate 52a. It becomes. According to this, the second diaphragm plate 5
By moving 2b in parallel with respect to the first diaphragm plate 52a whose position is fixed, it is possible to adjust the X-ray emission positions (more specifically, the position and the spacing) in the two X-ray irradiation units x1 and x2. It is possible to adjust the X-ray irradiation position (similar position and interval) on the belt conveyor 30.

[0036]

As described above, according to the present invention, the X-ray fluoroscopic image of the dust being conveyed is displayed on the monitor, so that it is possible to observe whether or not the treatment is inappropriate as in the conventional apparatus. Further, the automatic discrimination X-ray inspection apparatus is provided, and when the waste being conveyed is an inappropriate processing object, the processing inappropriate object detection notification signal is output, so that it is possible to further reduce the labor for sorting the inappropriate processing object.

Further, X-rays are radiated onto X-rays which are being conveyed on the upstream side of the X-ray irradiation position of the X-ray fluoroscopic inspection apparatus.
A signal for image processing in the X-ray inspection apparatus for automatic discrimination is obtained from the line detector. Therefore, it is possible to perform image processing in the X-ray inspection apparatus for automatic discrimination before the display on the monitor and discriminate whether or not the trash being conveyed is inappropriate for processing. As a result, it is possible to further perform visual inspection by the monitor of the X-ray fluoroscopic inspection apparatus after the automatic determination as to whether or not the processing is inappropriate.

Further, the X-ray irradiation to the two X-ray detectors for the X-ray fluoroscopic inspection apparatus and the X-ray inspection apparatus for automatic discrimination is performed by one X-ray source, and the cost and the number of parts are reduced. It And this one X-ray source is one X-ray source provided with two X-ray irradiation units, and the arrangement position in the case of one X-ray source provided with one X-ray irradiation unit There is no restriction (restriction that it must be positioned higher above the conveyor in order to widen the X-ray irradiation area), and only one of the two X-ray irradiation units is placed on the side of the first X-ray detector and the other is placed on the side of the first X-ray detector. It suffices to direct each to the 2X-ray detector side, and there is no need to widen the X-ray irradiation area. As a result, there is an effect that the image resolution is not lowered, and the accuracy of discriminating the inappropriate processing object is not lowered.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of an embodiment of a device of the present invention.

FIG. 2 is a perspective view showing a main part of another embodiment of the device of the present invention.

FIG. 3 is a perspective view showing a main part of a conventional device.

FIG. 4 is a perspective view showing a main part of a conventional device different from FIG.

5 is a diagram for explaining another example of the X-ray source 11A in FIG. 1. FIG.

FIG. 6 is a plan view of a first diaphragm plate and a second diaphragm plate in FIG.

[Explanation of symbols]

11A, 11B, 11C X equipped with two X-ray irradiation units
X-ray source 30 Belt conveyor 31A-31C X-ray source for X-ray inspection apparatus for automatic discrimination 32A-32C X-ray detector (second X-ray detector) for X-ray inspection apparatus for automatic discrimination 33A-33C X-ray fluoroscopic inspection X-ray source for apparatus 34A-34C X-ray detector (first X-ray detector) for X-ray fluoroscopy apparatus 35 X-rays 36A-36C X-ray inspection apparatus main body for automatic discrimination 37A-37C Alarm device 38A-38C X Fluoroscopic inspection apparatus main body 39A to 39C TV monitor 51 X-ray tube 52 Aperture 52a First aperture plate 52b Second aperture plate

Claims (4)

[Claims] 1. A signal from a first X-ray detector obtained by irradiating X-rays from an X-ray source on the refuse being conveyed in a refuse conveying device that conveys the refuse conveyed to a refuse processing facility to a processing furnace. An X-ray fluoroscopic inspection apparatus which obtains an X-ray fluoroscopic image of the above-mentioned dust on a monitor and makes it possible to observe whether or not the object is inappropriate for processing, and conveys it on the upstream side of the X-ray irradiation position of this X-ray fluoroscopic inspection apparatus. An X-ray fluoroscopic image of the dust is obtained by a signal from a second X-ray detector obtained by irradiating the dust inside with X-rays from an X-ray source, and image processing is performed to determine whether the dust is inappropriate for processing. And an X-ray inspection apparatus for automatic discrimination that outputs a detection-problem detection notification signal when the treatment is inappropriate, and the X-ray source corresponding to the first and second X-ray detectors is 2
A waste transport device in a waste treatment facility, characterized in that one X-ray source equipped with two X-ray irradiation units is shared. 2. An X-ray source provided with the two X-ray irradiators comprises two X-ray sources arranged at a predetermined angle around a tube axis.
The refuse transport apparatus in a refuse treatment facility according to claim 1, which is an X-ray tube apparatus including a radiation irradiation unit. 3. The refuse transporting apparatus according to claim 1, wherein the X-ray source includes an X-ray tube and a diaphragm, and the two X-ray irradiation units are provided by the diaphragm configuration. 4. The first diaphragm plate having a pair of slits fixedly provided in a position near the X-ray irradiation window of the X-ray tube and facing the X-ray tube, and the first diaphragm plate facing the first diaphragm plate. A second diaphragm plate having a pair of slits provided so as to be movable in parallel to the first diaphragm plate, and by moving the second diaphragm plate in parallel with the first diaphragm plate. The waste transport device in a waste treatment facility according to claim 3, wherein the X-ray emission positions of the two X-ray irradiation units can be adjusted.