JPH11192475A - Device and method for treating waste crt display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively disassemble and treat a waste CRT display by providing a cutting device for cutting a casing and a display body along the surface parallel to the front surface of a panel at the same time and a moving means for moving the waste CRT display relatively to the cutting device. SOLUTION: The waste CRT display 1 having a casing 1 and a display body 3 is conveyed by a conveying table 4, and during this conveying, an endless band saw 6 wound around four pulleys 5a-5d is circulated, thereby cutting the waste CRT display 1 along the surface parallel to the front surface thereof. At this time, to one of the pulleys 5a-5d, a motor for circulating and driving the band saw 6 is connected. The band saw 6 is guided by a pair of guides 8a, 8b above and below the waste CRT display 1. In this way, the efficiency of the whole treating work is bettered and the panel with the highest reusing value can easily be recovered.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing apparatus and a processing method for a discarded CRT display for disassembling a monitor of a discarded television or OA equipment.

[0002]

2. Description of the Related Art In recent years, televisions, refrigerators, washing machines,
Household appliances such as vacuum cleaners have contributed to the improvement of family life and have become indispensable to daily life. In recent years, microwave ovens, air conditioners, word processors, personal computers, and the like have also become widespread in ordinary households. In particular, competition for high-performance and low-cost OA equipment such as personal computers has been fierce, and the penetration rate of OA equipment such as personal computers in companies has also increased It has improved significantly.

As described above, while home electric appliances and OA equipment have become widespread, the amount of their disposal has also increased, and the recycling of them has become a problem. Conventionally, the recycling of home electric appliances has been performed through iron scrap collection routes. However, the constituent materials of home appliances are changing year by year, and in the current situation where metals, especially iron, are decreasing and plastics are increasing, recycling mainly of iron has reached a dead end.

[0004] In particular, recycling of OA equipment such as televisions and personal computers having a low iron content has not progressed, and at present it is crushed and landfilled. For example, in color television since the 1982s, which is now discarded,
Metals have decreased to about 15% and plastics have increased. Also, due to the miniaturization of the circuit, the ratio of CRT glass has increased to 57%, which is a situation that cannot be accommodated by the conventional iron recovery-based processing system. Therefore,
It is necessary to develop a comprehensive recycling technology that includes not only metal but also plastic and glass.

FIG. 35 is an explanatory diagram showing a flow of a conventional discarded television processing disclosed in Japanese Patent Laid-Open No. 5-185064, for example. In this example, the cathode-ray tube is taken out from the housing (cabinet or rear cover) of the waste television, and the reinforcing tube is removed from the cathode-ray tube, thereby dividing the cathode-ray tube into a panel and a funnel, and washing and crushing each of the funnel and the panel. It is carried out.

[0006]

However, in the above-mentioned conventional disposal television processing method, since the step of taking out the cathode ray tube from the housing is performed manually, many mounting screws are removed one by one. It takes a lot of trouble and the inside and outside of the housing are often dirty, resulting in unsanitary work. In addition, when an attempt is made to remove the mounting screws using an automated facility, it is difficult to recognize and position the mounting screws because the positions and the number of the mounting screws vary depending on the type of discarded television.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has been made in consideration of the above circumstances.
An object of the present invention is to obtain a processing device and a processing method for an RT display.

[0008]

According to a first aspect of the present invention, there is provided a processing apparatus for a waste CRT display, comprising: a cutting device for simultaneously cutting a housing and a display main body along a plane parallel to a front surface of a panel; Moving means for relatively moving the waste CRT display.

According to a second aspect of the present invention, there is provided a waste CRT display processing apparatus using a band-shaped band saw for cutting a waste CRT display by being circulated, and a motor for circulating the band saw. It is.

[0010] According to a third aspect of the present invention, there is provided a processing apparatus for a waste CRT display, wherein a band saw is inclined relative to a side surface of a housing.

According to a fourth aspect of the present invention, there is provided a processing apparatus for a waste CRT display, comprising a movement control device connected to the moving means for controlling a moving speed and a moving direction of the waste CRT display relative to the cutting device by the moving means. It is a thing.

According to a fifth aspect of the present invention, there is provided a processing apparatus for a discarded CRT display, comprising a cutting load detecting device connected to the movement control device for detecting a cutting load applied to the cutting device.

According to a sixth aspect of the present invention, there is provided a processing apparatus for a waste CRT display, wherein a double-edged band saw having blades on both end surfaces is used.

According to a seventh aspect of the present invention, in the processing apparatus for a waste CRT display, the double-edged band saw constitutes a Mobius loop.

According to a further aspect of the present invention, there is provided a processing apparatus for a waste CRT display, comprising a water tank for containing a liquid, and a cutting device and a moving means arranged so that the cutting of the waste CRT display by the cutting device is performed in the liquid. Things.

According to a ninth aspect of the present invention, there is provided a processing apparatus for a waste CRT display, wherein a conductive coating material or a liquid capable of dissolving glass applied to the inner surface of the funnel is used.

The disposal apparatus for a waste CRT display according to the tenth aspect uses a liquid capable of dissolving lead.

According to the eleventh aspect of the present invention, there is provided a processing apparatus for a waste CRT display, comprising a foreign matter separating apparatus connected to a water tank and for separating foreign matter mixed by cutting from liquid.

According to a twelfth aspect of the present invention, there is provided a processing apparatus for a waste CRT display, comprising a liquid temperature control device connected to a water tank for controlling the temperature of the liquid.

According to a thirteenth aspect of the present invention, there is provided a processing apparatus for a waste CRT display, wherein high-pressure water is sprayed on the display body cut by the cutting device to apply the phosphor to the panel and the funnel to the funnel. And a cleaning device for cleaning and removing at least one of the conductive coating paints.

According to a fourteenth aspect of the present invention, there is provided a processing apparatus for a waste CRT display, wherein the display body cut by the cutting device is sprayed with water to which ultrasonic vibration is applied, so that the phosphor applied to the panel is sprayed. And a cleaning device for cleaning and removing at least one of the conductive coating paint applied to the funnel.

According to a fifteenth aspect of the present invention, there is provided a method of processing a waste CRT display, wherein the cutting device is used to move the housing and the display body along a plane parallel to the front surface of the panel, on the panel side relative to the connection between the panel and the funnel. It includes a step of cutting at the same time.

According to a sixteenth aspect of the present invention, there is provided a method for processing a discarded CRT display, wherein a cutting load is detected when the housing and the display main body are cut, and the relative position of the discarded CRT display with respect to the cutting device is determined in accordance with the detected cutting load. It controls the moving speed and moving direction.

According to a seventeenth aspect of the present invention, there is provided a method of processing a waste CRT display, wherein the waste CRT display is relatively moved at a constant speed with respect to the cutting device regardless of the cutting resistance when the housing and the display main body are cut. It is.

[0025] In the method for treating a waste CRT display according to the eighteenth aspect of the present invention, the waste CRT display is cut by the cutting device while the waste CRT display is immersed in the liquid.

The method for treating a waste CRT display according to the nineteenth aspect of the present invention is a step of crushing a panel and a funnel of a cut display main body, a step of separating a phosphor from the crushed panel, and a step of crushing the funnel. The method includes a step of separating the conductive coating paint.

According to a twentieth aspect of the present invention, there is provided a method of treating a waste CRT display, wherein the phosphor and the conductive coating material are separated by barrel polishing.

According to a twenty-first aspect of the present invention, there is provided a method of processing a waste CRT display, wherein barrel polishing is performed by mixing an abrasive.

A method of processing a waste CRT display according to a twenty-second aspect of the present invention uses a magnetic material as an abrasive, and separates and collects the abrasive by magnetic force after barrel polishing.

According to a twenty-third aspect of the present invention, there is provided a method of processing a waste CRT display, wherein an abrasive larger than a crushed glass piece is used, and the abrasive is separated and recovered by a sieve after barrel polishing.

In the method for treating a waste CRT display according to the present invention, after separating the conductive coating paint from the crushed funnel, the glass piece of the funnel is washed with a liquid capable of dissolving lead to remove lead. This includes the step of performing

[0032]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. FIG. 1 is a side view showing a processing apparatus for a waste CRT display according to Embodiment 1 of the present invention, and FIG. 2 is a front view of FIG. In the figure, a waste CRT display 1 has a housing 2 and a display main body 3 mounted in the housing 2. The waste CRT display 1 is transported by the transport table 4 as a moving means.

A band-like band saw 6 whose both ends are connected endlessly is wound around the four pulleys 5a to 5d. The band saw 6 is circulated to cut the waste CRT display 1 along a plane parallel to the front surface thereof. A motor 7 for circulating the band saw 6 is connected to one of the pulleys 5a to 5d. The band saw 6 is guided above and below the waste CRT display 1 by a pair of guides 8a and 8b. The cutting device 10 in this example has pulleys 5a to 5d, a band saw 6, a motor 7, and guides 8a and 8b.

FIG. 3 is a sectional view showing a schematic configuration of the waste CRT display 1 of FIG. In the figure, an opening 2 a is provided on the front surface of the housing 2. The display body 3 has a glass panel 11 disposed in the opening 2a, a glass funnel 12 connected to the rear of the panel 11, and a neck 13 connected to the rear end of the funnel 12. doing. An explosion-proof reinforcing member 14 is provided on the outer periphery of the connection between the panel 11 and the funnel 12.
Are adhered over the entire circumference via an adhesive. For example, at the four corners of the display body 3, the display body 3
Is fixed to the housing 2. These mounting members 15 are fixed to the outer peripheral portion of the display main body 3 by being partially sandwiched between the explosion-proof reinforcing member 14 and the display main body 3.

A phosphor 16 is applied to the inner surface of the panel 11, and a shadow mask 17 is mounted thereon. In addition, a part of the inner surface and the outer surface of the funnel 12 includes:
The conductive coating 18 is applied.

Next, FIG. 4 shows a discard CR according to the first embodiment.
FIG. 4 is an explanatory diagram showing a processing method of the T display 1. The discarded CRT display 1 is transported on the transport table 4, and the casing 2 and the display main body 3 are simultaneously cut by the band saw 6 along the line AA in FIG. 3 (step S1). FIG. 5 is a front view showing a state in the middle of the cutting process by the cutting device 10 of FIG. 2, and shows a part of the band saw 6 removed.

Thereafter, the mounting member 15, the shadow mask 17, the printed circuit board (not shown), the speaker (not shown), and the like are removed from the two divided waste CRT displays 1 (step S2). This disassembly operation can be easily performed manually. Then, the waste plastic such as the housing 2, the mounting member 15, the shadow mask 17
And metal such as speakers, and printed circuit boards. Further, the funnel 12 and the neck portion 13 are separated (Step S3), and the inner surface of the panel 11 is cleaned (Step S4), and the phosphor 16 is collected.

According to such a disposal CRT display processing method, the casing 2 and the display main body 3 are simultaneously cut almost parallel to the front surface of the panel 11, so that the subsequent disassembly and separation work is facilitated. A panel 1 with the highest efficiency of reuse and the highest value of reuse
1 can be easily collected. Further, since the display main body 3 is cut on the panel 11 side from the connection portion between the panel 11 and the funnel 12, the funnel 12 containing many impurities such as lead is prevented from being mixed into the collected panel 11. Furthermore, a cutting device 10 having a band saw 6
Is used, the apparatus can be downsized in the height direction of the waste CRT display 1.

As the band saw 6, for example, a diamond cutting band saw on which diamond abrasive grains are mounted is preferable, and a quenching tapping screw, a display main body 3, a display main body 3, which is mostly made of glass, a core magnet of a speaker, and the like. Can be cut relatively easily. Also, cBN (cubic Bor)
A cBN cutting band saw equipped with on-nitride abrasive grains can also be used.

In the above example, the housing 2 and the display main body 3 are cut along the line AA in FIG. 3. However, if the explosion-proof reinforcing member 14 and the mounting member 15 can be easily removed from the panel 11, For example, the glass material of the panel 11 may be cut along the line BB in FIG. 3, and more glass material of the panel 11 can be collected.

Further, in the above example, the waste CRT display 1 is transported, but the cutting device 10 may be moved, or both the waste CRT display 1 and the cutting device 10 may be movable.

Embodiment 2 FIG. 6 is a front view showing a processing apparatus according to Embodiment 2 of the present invention. In this example,
A spacer 9 is interposed at the bottom of the rear end of the waste CRT display 1 in the transport direction. Thereby, the band saw 6
Are arranged to be inclined relative to the side surface of the housing 2.

Here, when the side surface of the housing 2 and the band saw 6 are parallel to each other, the contact area of the band saw 6 at the start of the contact with the housing 2 is large, so that the cutting resistance and the friction resistance are large. On the other hand, when the waste CRT display 1 is inclined by the spacer 9, the band saw 6 starts cutting from the corner portion of the housing 2, so that the cutting resistance and the frictional resistance are reduced, the wear of the band saw 6 is reduced, and the life is shortened. Extends.

Embodiment 3 FIG. In the above example, the discarded CRT display 1 is inclined using the spacers 9. However, as shown in FIG.
May be arranged inclining with respect to, and the same effect can be obtained.

Embodiment 4 Further, in the above example, the band saw 6 is inclined with reference to only the side surface of the housing 1. However, there is a method of determining the inclination angle with reference to the panel 11 having higher hardness than the housing 1. That is, the hatched portion in FIG. 8 shows the cross section of the panel 11 cut along the line AA or BB in FIG. 3, but the contact length between the band saw 6 and the glass cross section of the panel 11 is small. You may make it incline by angle (theta) with respect to CC line which becomes the maximum. In this case, the area of contact between the band saw 6 and the glass cross section of the panel 11 at the time of cutting is reduced, cutting resistance and frictional resistance with respect to the band saw 6 are reduced, wear of the band saw 6 is reduced, and the life is extended.

Embodiment 5 FIG. Next, FIG. 9 is a front view showing a processing apparatus according to Embodiment 5 of the present invention. In this example, a waste CRT display 1 that is placed stationary
In response, the cutting device 10 is moved in the left and right direction in the figure along the transfer table 21 as moving means. Further, a movement control device 22 is connected to the transfer table 21, and the movement speed and the movement direction of the cutting device 10 are controlled.

In such a device, when the waste CRT display 1 is large or when the glass cutting length of the display main body 3 is long, the moving speed of the cutting device 10 is reduced or the band saw 6 is prevented from being clogged. In addition, the moving direction of the band saw 6 can be slightly reversed every fixed cutting feed, so that the cutting resistance and frictional resistance to the band saw 6 are reduced, the wear of the band saw 6 is reduced, and the life is extended.

Embodiment 6 FIG. FIG. 10 is a front view showing a processing apparatus according to Embodiment 6 of the present invention. In this example, a movement control device 23 for controlling the movement speed and movement direction of the transfer CRT display 1 is connected to the transfer table 4, and a rotation control device 24 for controlling the rotation of the motor 7 is connected to the motor 7. I have.

In such an apparatus, when the waste CRT display 1 is large or when the glass cutting length of the display main body 3 is long, the moving speed of the waste CRT display 1 is reduced or the band saw 6 is prevented from being clogged. The waste CRT display 1 can be slightly inverted every time a fixed cutting feed is performed, so that the cutting resistance and frictional resistance to the band saw 6 are reduced, the wear of the band saw 6 is reduced, and the life is extended. Further, the rotation of the motor 7 can be adjusted according to the cutting resistance.

Embodiment 7 FIG. FIG. 11 is a front view showing a processing apparatus according to Embodiment 7 of the present invention. In this example, a cutting load detecting device 25 that detects a cutting load applied to the band saw 6 is connected to the movement control device 23. The cutting load detecting device 25 detects a cutting load by, for example, an ammeter or a torque meter provided on a drive motor (not shown) of the transport table 4.

In such an apparatus, when the cutting resistance applied to the band saw 6 exceeds a certain value, the transfer table 4
The cutting and feeding by the carrier table 4 is decelerated, or the cutting and feeding by the transport table 4 is retracted and the band saw 6 is stopped, and then the band saw 6 is replaced.
Line stoppage due to breakage of the band saw 6 in the display 1 cutting step can be prevented.

Embodiment 8 FIG. In addition, the cutting load detecting device 2
12 may be connected to the movement control device 23 in a feedback-controllable manner as shown in FIG. 12, so that the cutting feed speed and cutting feed of the transport table 4 are optimized so that the cutting resistance applied to the band saw 6 is optimized. The pattern can be automatically controlled, the wear of the band saw 6 is reduced, and the life is further extended.

Embodiment 9 FIG. Next, FIG. 13 is a front view showing a processing apparatus according to Embodiment 9 of the present invention. In this example, a rotation load detection device 26 that detects the rotation load of the motor 7 is connected to the rotation control device 24 so as to be able to perform feedback control. Further, the rotation load detection device 26 and the disconnection load detection device 25 can mutually input and output signals,
When the cutting load detected by the cutting load detection device 25 exceeds the set value, the motor 7 is decelerated by the rotation control device 24 via the rotation load detection device 26.

Similarly, when the rotational load detected by the rotational load detector 26 exceeds the set value, the disconnection load detector 2
5, the cutting control of the discarded CRT display 1 can be slowed down by the movement control device 23, or the cutting feed can be temporarily retracted, and the line stop due to the breakage of the band saw 6 in the cutting process of the discarded CRT display 1 The cutting feed speed and the cutting feed pattern of the discarded CRT display 1 can be controlled so as to prevent the cutting of the band saw 6 beforehand and to optimize the cutting resistance applied to the band saw 6, thereby reducing the wear of the band saw 6 and extending its life.

Embodiment 10 FIG. Next, FIG. 14 is a front view showing a processing apparatus according to Embodiment 10 of the present invention.
In this example, a constant speed control device 27 is connected to the transport table 4, and the discarded CRT display 1 is transported at a constant speed and cut regardless of the cutting resistance. Therefore, the cutting time can be estimated by calculation, and the number of processing units within a predetermined time can be estimated.

Embodiment 11 FIG. Next, FIG. 15 is a side view showing a processing apparatus according to Embodiment 11 of the present invention.
Is a cross-sectional view taken along the line XVI-XVI in FIG. 15, and FIG. 17 is a cross-sectional view taken along the line XVII-XVII in FIG. In this example, a double-edged band saw 31 having an I-shaped cross section is guided by being sandwiched between a pair of upper and lower roller guides 32a and 32b.
Other configurations are the same as those of the first embodiment.

In such an apparatus, since the double-saw band saw 31 having the blades at both end surfaces is used, an overload is applied to the double-saw band saw 31, and when the double-saw band saw 31 is retracted, the once cut portion and the double-saw band saw 31 are used. And the friction with the band saw 31 can be suppressed, and the temperature rise of the double-edged band saw 31 can be suppressed. Further, when one of the blades cannot be cut, the whole blade saw 31 can be turned upside down to be cut.

Embodiment 12 FIG. FIG. 18 is an explanatory diagram showing a manufacturing process of the double-edged band saw according to Embodiment 12 of the present invention. In this example, a band-shaped band saw base material 33 as shown in FIG. 18A is twisted as shown in FIG.
By combining the corners 33a and 33d, and the corners 33b and 33c, a double-edged band saw 34 forming a Mobius loop as shown in FIG. 18C is manufactured.

In such a double-edged band saw 34, since the blades on both sides continuously contribute to the cutting at the time of cutting, the apparent length of the blade becomes twice as long as the single-edged band saw, the wear of the double-edged band saw 34 is reduced, and the life is shortened. Extends.

Embodiment 13 FIG. Next, FIG. 19 is a front view showing a processing apparatus according to Embodiment 13 of the present invention.
In the figure, water 42 as a liquid is placed in a water tank 41, and the transport table 4 and the cutting device 10 are arranged so that the waste CRT display 1 is immersed in the water 42. Further, in order to facilitate the transportation of the waste CRT display 1 in the water 42, the transport table 4 is provided with a constant cutting load device 43. The constant cutting load device 43 uses a constant weight of waste CRT
A device that pulls the display 1 or a device that presses the waste CRT display 1 with a constant force by a conston spring is used.

As described above, CR discarded by the band saw 6
By cutting the T display 1 in the water 42,
The heat generated in the band saw 6 at the time of cutting can be cooled, the temperature rise of the band saw 6 can be suppressed, and the wear of the band saw 6 is reduced and the life is extended. Further, the inside and outside of the waste CRT display 1 can be cleaned at the same time.

In the above example, water 42 was used.
For example, other liquids having high cooling efficiency such as cutting oil, electric discharge machining oil or ion-exchanged water may be used.

Embodiment 14 FIG. In the above example, the waste CRT display 1 is moved in the water tank 41,
As shown in FIG. 20, the waste CRT display 1 may be placed in a water tank 41 in a stationary state, and the cutting device 10 may be moved by the transport table 21. In this case, the constant cutting load device 43 may be provided on the transport table 21. As described above, by moving the cutting device 10 side, the cutting feed space can be reduced, and the water tank 41 can be downsized.

Embodiment 15 FIG. FIG. 21 is a front view showing a processing apparatus according to Embodiment 15 of the present invention. In this example, a water purifying and circulating device 44 for circulating and purifying water 42 in a water tank 41 is connected to the water tank 41. Thereby, deterioration of the cooling characteristic of the water 42 is prevented, and the number of replacements of the water 42 can be reduced.

Embodiment 16 FIG. Next, FIG. 22 is a front view showing a processing apparatus according to Embodiment 16 of the present invention.
In this example, a hydrofluoric acid aqueous solution 45 is placed in the water tank 41, and the waste CRT display 1 is cut in the hydrofluoric acid aqueous solution 45. Further, in the water tank 41, a hydrofluoric acid purification circulating device 46 for circulating and purifying the hydrofluoric acid aqueous solution 45 and a conductive coating paint separating device 47 for separating and recovering the conductive coating paint in the circulating hydrofluoric acid aqueous solution 45 are provided. It is connected. This conductive coating paint separation device 4
7 is a filter (not shown) for filtering waste liquid in which the hydrofluoric acid aqueous solution 45 and the conductive coating paint are mixed and dissolved, and a tank (not shown) for lowering the temperature of the filtered waste liquid (about 4 ° C.) for precipitation. And

In such an apparatus, by cutting the waste CRT display 1, the inner surface of the funnel 12 shown in FIG. 3 comes into contact with the hydrofluoric acid aqueous solution 45, and the conductive coating 18 is dissolved and removed. Then, the dissolved conductive coating 18 is collected by the conductive coating paint separating device 47. Note that the inner surface of the panel 11 in contact with the phosphor 16 and a part of the phosphor 16 are also
5, the slurry of the phosphor 16 is blocked by the shadow mask 17.

Embodiment 17 FIG. FIG. 23 is a front view showing a processing apparatus according to Embodiment 17 of the present invention. In the figure, a circulation path of water 42 by a water purification circulation device 44 includes a foreign matter separation device 48 that separates and collects foreign matter such as cutting powder mixed in the water 42 using a filter, a magnet, or the like, and a water 42.
And a liquid temperature control device 49 for controlling the temperature of the liquid crystal. As the liquid temperature control device 49, for example, a cooler (chiller) using a compressor or the like is used.

With such a configuration, foreign substances such as dust, dirt, and cutting powder inside and outside the waste CRT display 1 can be removed from the water 42.
The band saw 6 can be easily removed from the cutting section, and the intrusion of cutting powder and the like into the cutting portion can be prevented, the wear of the band saw 6 can be reduced, and the life of the band saw 6 can be extended. In addition, it is possible to maintain the water temperature at an appropriate temperature and prevent the cooling characteristic of the water 42 from deteriorating, thereby prolonging the life of the band saw 6.

Embodiment 18 FIG. The foreign matter separating device 48
As shown in FIG. 24, the liquid temperature control device 49 can be provided in a device using a hydrofluoric acid aqueous solution 45 as a liquid, and the same effect can be obtained. In addition, by adjusting the temperature of the hydrofluoric acid aqueous solution 20, the dissolution characteristics of the glass surfaces of the panel 11, the funnel 12, the phosphor 16, and the conductive coating 18 can be improved.

Embodiment 19 FIG. FIG. 25 is a front view showing a processing apparatus according to Embodiment 17 of the present invention. In this example, a sulfuric acid aqueous solution 50 is used as a liquid, and a lead separation device 51 and a sulfuric acid purification circulation device 52 are connected to a water tank 41. Thereby, the temperature rise of the band saw 6 can be suppressed as in the case of water. In addition, lead contained in the display body 3 and lead such as solder of a printed circuit board are harmful substances. These harmful leads can be dissolved and removed by a sulfuric acid aqueous solution 50 and separated and recovered by a lead separation device 51. .
As the lead separation device 51, a device that filters with a filter, a device that precipitates lead in a tank, or a device that separates lead by centrifugal force is used. Further, when a filter is used, the processing capacity can be improved by employing a circulation movement method. Further, an acetic acid aqueous solution can be used instead of the sulfuric acid aqueous solution.

Embodiment 20 FIG. Next, FIG. 26 is a configuration diagram showing a cleaning apparatus for a processing apparatus of a waste CRT display according to a twentieth embodiment of the present invention. In the figure, a cut panel 11 is fixed on a panel fixing base 61 with its inner surface facing upward. A water receiving cover 62 is provided around the panel fixing base 61. Above the panel fixing base 61, a nozzle 63 for jetting high-pressure water (water jet) to the inner surface of the panel 11 is provided. The nozzle 63 is mounted on a straight table 64 and an arc table 65 so that the angle can be adjusted.

The nozzle 63 is connected to a water jet generation controller 66 for generating high-pressure water.
A water purifying circulating device 6 that circulates the jetted water to a water jet generation control device 66 is provided on the water receiving cover 62.
7 is connected. Further, a phosphor separation device 68 for separating and recovering the phosphor 16 is connected between the water receiving cover 62 and the water purification circulation device 67. Also, the cleaning device 6
0 denotes a panel fixing base 61, a water receiving cover 62, a nozzle 6
3, a straight table 64, an arc table 65, a water jet generation control device 66, a water purification circulation device 67, and a phosphor separation device 68. As the phosphor separating device 68, a device that filters with a filter, a device that evaporates water with a heater or ultrasonic waves, or a device that precipitates the phosphor 16 in a tank is used. In the method of evaporating water, the evaporated water can be cooled and reused. Further, when a filter is used, the processing capacity can be improved by adopting a circulation movement method.

Next, the operation will be described. As shown in FIG. 4, the shadow mask 1 is cut from the panel 11 side of the waste CRT display 1 cut by the cutting device 10.
7 is removed, and the phosphor 16 is removed by a washing step. The apparatus shown in FIG. 26 is used in the cleaning step of the phosphor 16. That is, the water jet generation control device 66
The high-pressure water generated in the above is sprayed from the nozzle 63 onto the inner surface of the panel 11, and the phosphor 16 is blown off. The blown phosphor 16 is received by the water receiving cover 62 together with the water, and is separated and collected by the phosphor separating device 68.

In such a cleaning apparatus, the fluorescent substance 16 can be easily removed by spraying high-pressure water, and the waste C is added to the hydrofluoric acid aqueous solution 45 as shown in FIG.
Compared with the case where the entire RT display 1 is immersed, the waste liquid treatment is simpler and the whole can be downsized.

Embodiment 21 FIG. In the above example, the cleaning device is used for removing the phosphor 16. However, for example, as shown in FIG. 27, a funnel fixing base 69 is provided instead of the panel fixing base 61, and the phosphor separating device 68 is used instead. By providing the conductive coating paint separating device 70, the conductive coating paint 18 applied to the inner surface of the funnel 12 can be washed and removed and collected.
Further, as the conductive coating paint separating device 70,
A filter that is filtered by a filter, a filter that evaporates water with a heater or ultrasonic waves, or a filter that precipitates a conductive coating paint in a tank is used. Further, in the method of evaporating water, the evaporated water can be cooled and reused. Furthermore, when a filter is used, the processing capacity can be improved by adopting a circulation movement method.

The relative movement between the nozzle 63 and the panel 11 and the funnel 12 during the cleaning can be performed by providing a moving table on the fixed bases 61 and 69 or by using two linear tables and one rotary table on the nozzle 63 side. It is also possible to provide them. Further, abrasive grains and the like may be mixed in the water jet, and the phosphor 16 and the conductive coating paint 1 may be mixed.
8, the removal efficiency is improved.

Embodiment 22 FIG. FIG. 28 is a configuration diagram showing a cleaning apparatus according to Embodiment 22 of the present invention. The cleaning device 71 in this example is configured to eject the water that has been ultrasonically oscillated (about 500 kHz to 2 MHz) by the ultrasonic transmission device 72 from the resonance nozzle 73, thereby flipping and removing the phosphor 16. Another configuration is the same as that of the twentieth embodiment.
Is the same as In this manner, the cleaning and removal of the phosphor 16 can also be performed by spraying the water subjected to the ultrasonic vibration.

Embodiment 23 FIG. In the above example, the cleaning of the phosphor 16 has been described, but the cleaning device 71 can also be used for cleaning the conductive coating material 18 of the funnel 12, as shown in FIG.

Embodiment 24 FIG. Next, FIG. 30 is an explanatory diagram showing a processing method of a discarded CRT display according to Embodiment 24 of the present invention. First, a step of simultaneously cutting the housing 2 and the display main body 3 (step S1), and the mounting member 1 from the two divided CRT displays 1
5. Step of removing shadow mask 17, printed circuit board (not shown), speaker (not shown), etc. (step S
2) is the same as in the first embodiment. Also, a step of separating the neck portion 13 from the funnel 12 (Step S3)
The same is true for

The separated neck portion 13 is crushed (step S6) and treated as a discarded incombustible. After the funnel 12 is crushed (Step S7), the conductive coating material 18 is separated (Step S8). Further, the panel 11 is also crushed (step S
9), the phosphor 16 is separated (step S10). For the separation of the conductive coating 18 and the phosphor 16, a method of washing with an aqueous solution of hydrofluoric acid, a method of shaving off by barrel polishing, and the like are used.

As described above, the funnel 12 and the panel 11
After the crushing, the conductive coating material 18 and the fluorescent material 16 are separated, so that the conductive coating material 18 and the fluorescent material 16 can be separated by the same device regardless of the size of the waste CRT display 1. Can be done with
Separation and removal of the phosphor 16 and the conductive coating 18 are stabilized. Further, when the conductive coating paint 18 and the phosphor 16 are separated by barrel polishing, it is not necessary to perform waste liquid treatment, and the equipment can be downsized.

Here, FIG. 31 is an explanatory view showing an example of the phosphor separation step of FIG. As shown in FIG. 31 (a), a glass piece 11a crushed with the fluorescent substance 16 adhered thereto and a polishing stone 75 as an abrasive smaller than the glass piece 11a are mixed, and this mixture is mixed. On the other hand, barrel polishing is performed as shown in FIG. This allows
As shown in FIG. 31 (c), the phosphor 16 is peeled from the glass piece 11a. At this time, glass powder 11b is slightly generated.

Thereafter, as shown in FIG. 31D, the mixture after barrel polishing is passed through a sieve 76 having a mesh slightly smaller than the glass piece 11a, and the glass piece 11a (on the sieve), the phosphor 16, the polishing stone 75 and glass powder 11b
(Below the sieve 41). Thus, the polishing stone 75
Is mixed and barrel polishing is performed, whereby the time for separating and removing the phosphor 16 can be shortened. Further, by the same barrel polishing step, the conductive coating material 18 can be separated from the crushed funnel glass pieces.

Embodiment 25 FIG. In the above example, barrel polishing is performed by mixing the polishing stone 75. However, as shown in FIG. 32, barrel polishing may be performed by mixing steel balls 77 as an abrasive. In this case, after the glass piece 11a is separated by the sieve 76, the steel ball 77 can be further separated by using magnetic force. In this example, all the mixture passing through the sieve 76 is brought into contact with the rotating electromagnet roller 78. Then, the phosphor 16 and the glass powder 11b are dropped as it is, and the steel ball 77 is once attracted to the electromagnet roller 78 and then dropped in the range 78a where no electromagnetic force acts. This makes it possible to repeatedly use the steel ball 77. Further, by the same barrel polishing step, the conductive coating material 18 can be separated from the crushed funnel glass pieces.

Embodiment 26 FIG. Further, as shown in FIG. 33, a steel ball 79 larger than the panel glass 11a may be used as an abrasive. In this case, the mixture after barrel polishing as shown in FIG. 33 (c) is passed through a sieve 80 having a mesh larger than the glass piece 11a as shown in FIG. 33 (d) to collect steel balls 79. Thereafter, the mixture that has passed through the sieve 80 is further passed through a sieve 76 as shown in FIG. 3E, and the glass piece 11a can be collected.

Embodiment 27 FIG. Next, FIG. 34 is an explanatory diagram showing a processing method of a discarded CRT display according to the embodiment 27 of the present invention. In this example, as shown in FIG. 34, the glass piece after passing through the conductive coating paint separating step and the phosphor separating step is washed with a sulfuric acid aqueous solution (steps S11 and S12). By such a sulfuric acid washing step, lead contained in a glass piece can be separated and removed, and glass with less impurities can be recovered. In particular, the glass piece of the funnel 12 includes the panel 11
Therefore, the price of the recycled glass can be increased by performing the sulfuric acid washing step, since the lead glass contains more lead. In the cleaning step, an aqueous acetic acid solution may be used instead of the aqueous sulfuric acid solution.

[0087]

As described above, in the processing apparatus for a waste CRT display according to the first aspect of the present invention, the casing and the display main body are simultaneously cut by the cutting device along a plane parallel to the front surface of the panel. , The subsequent disassembly and separation work becomes easier, and the efficiency of the entire processing work becomes better,
And the panel with the highest reuse value can be easily collected.

The processing apparatus for a waste CRT display according to the second aspect of the present invention uses a cutting device having a band-shaped band saw, so that the cutting device can be downsized.

In the processing apparatus for a waste CRT display according to the third aspect of the present invention, since the band saw is inclined relatively to the side surface of the housing, cutting resistance and frictional resistance to the band saw can be reduced, and the life of the band saw can be reduced. Can be extended.

In the processing apparatus for the waste CRT display according to the fourth aspect of the present invention, the moving speed and the moving direction of the waste CRT display relative to the cutting device can be controlled by the movement control device, so that the cutting speed and the moving direction are adjusted. By doing so, the cutting resistance and the frictional resistance of the blade of the cutting device can be reduced, and the life of the blade of the cutting device can be extended.

The processing apparatus for a waste CRT display according to the fifth aspect of the present invention includes a cutting load detecting device for detecting a cutting load applied to the cutting device. Therefore, the cutting speed and the moving direction are adjusted according to the detected cutting load. If the cutting load exceeds the allowable value, the operation of the apparatus is stopped to prevent the line from being stopped due to breakage of the cutting apparatus.

The processing apparatus for a waste CRT display according to the sixth aspect of the present invention uses a double-edged band saw having blades at both end surfaces, so that the resistance when the band saw is retracted can be reduced and the band saw can be used. Life can be extended.

In the processing apparatus for a waste CRT display according to the seventh aspect of the present invention, since the double-edged band saw constitutes a Mobius ring, the apparent length of the blade can be increased, and the life of the band saw can be extended. Can be.

In the processing apparatus for a waste CRT display according to the eighth aspect of the present invention, since the waste CRT display is cut by the cutting device in the liquid, overheating of the cutting device can be prevented, and simultaneously with the cutting. Cleaning inside and outside the housing can also be performed.

In the processing apparatus for a waste CRT display according to the ninth aspect of the present invention, since the conductive coating material or the liquid capable of dissolving the glass applied to the inner surface of the funnel is used, the conductive coating is separated and removed at the time of cutting. Work efficiency can be improved.

The waste CRT display processing apparatus according to the tenth aspect uses a liquid capable of dissolving lead, so that harmful lead can be easily removed.

The processing apparatus for a waste CRT display according to the eleventh aspect of the present invention is provided with a foreign matter separating apparatus for separating foreign matter mixed in by cutting from the liquid, so that the liquid can be kept clean. The blade can be prevented from being damaged by preventing foreign matter from entering the blade.

In the processing apparatus for a waste CRT display according to the twelfth aspect of the present invention, since the liquid temperature control device for controlling the temperature of the liquid is provided, the cooling performance can be maintained.

In the processing apparatus for a waste CRT display according to the thirteenth aspect of the present invention, high-pressure water is sprayed on the display body cut by the cutting device, so that the phosphor and the funnel applied to the panel are applied. Since at least one of the conductive coating paints is washed and removed, the phosphor and the conductive coating paint can be easily removed by a small cleaning device.

According to a fourteenth aspect of the present invention, there is provided a processing apparatus for a waste CRT display, wherein the display body cut by the cutting device is sprayed with water to which ultrasonic vibrations are applied, so that the phosphor applied to the panel and Since at least one of the conductive coating paint applied to the funnel is cleaned and removed, the phosphor and the conductive coating paint can be easily removed by a small cleaning device.

According to a fifteenth aspect of the present invention, there is provided a method of processing a waste CRT display, wherein the cutting device simultaneously moves the housing and the display main body along a plane parallel to the front surface of the panel on the panel side from the connection between the panel and the funnel. Since the cutting is performed, the subsequent disassembly and separation work is facilitated, the efficiency of the entire processing work is improved, and the panel having the highest reuse value can be easily collected.

The disposal method of a waste CRT display according to the sixteenth aspect of the present invention detects a cutting load when the housing and the display main body are cut, and, in accordance with the detected cutting load, a relative position of the waste CRT display with respect to the cutting device. By controlling the moving speed and moving direction, it is possible to reduce the cutting resistance and frictional resistance to the blade of the cutting device by adjusting the cutting speed and the moving direction, thereby extending the life of the blade of the cutting device. . In addition, when the cutting load exceeds the allowable value, the operation of the apparatus is stopped to prevent the line from being stopped due to breakage of the cutting apparatus.

In the method for processing a waste CRT display according to the seventeenth aspect, the waste CRT display is moved at a constant speed with respect to the cutting device regardless of the cutting resistance when the housing and the display main body are cut. When processing a large number of discarded CRT displays, it is possible to ascertain the overall processing time and the number of units that can be processed.

In the method for treating a waste CRT display according to the eighteenth aspect of the present invention, since the waste CRT display is cut by the cutting device in a state where the waste CRT display is immersed in the liquid, overheating of the cutting device can be prevented. In addition to the cutting, the inside and outside of the housing can be cleaned simultaneously with the cutting.

The method for treating a waste CRT display according to the nineteenth aspect of the present invention comprises the steps of:
Since the phosphor and the conductive coating paint are separated, the same device can be used to separate the conductive coating paint and the phosphor regardless of the size of the waste CRT display. Stable separation and removal of coating paint.

In the method for treating a waste CRT display according to the twentieth aspect, since the separation of the phosphor and the conductive coating paint is performed by barrel polishing, there is no need to perform waste liquid treatment, and the equipment can be downsized. .

In the method for treating a waste CRT display according to the twenty-first aspect of the present invention, since the abrasive is mixed and barrel polishing is performed, the phosphor and the conductive coating material can be separated and removed more reliably.

According to the method of treating a waste CRT display according to the twenty-second aspect, a magnetic material is used as an abrasive, and the abrasive is separated and recovered by magnetic force after barrel polishing, so that the abrasive can be used repeatedly and economically. Is improved.

The method for treating a waste CRT display according to the twenty-third aspect of the present invention uses an abrasive larger than a crushed glass piece and separates and recovers the abrasive by sieving after barrel polishing, so that the abrasive is repeatedly used. And economic efficiency is improved.

In the method for treating a waste CRT display according to the twenty-fourth aspect of the present invention, the conductive coating paint is separated from the crushed funnel, and then the lead is removed by washing the glass piece of the funnel with a liquid capable of dissolving lead. Therefore, the reuse value of the recovered glass can be increased.

[Brief description of the drawings]

FIG. 1 is a side view showing a processing apparatus for a waste CRT display according to a first embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a sectional view showing a schematic configuration of the waste CRT display of FIG. 1;

FIG. 4 is an explanatory diagram showing a processing method of a discarded CRT display according to the first embodiment.

FIG. 5 is a front view showing a state in the middle of a cutting process by the cutting device of FIG. 2;

FIG. 6 is a front view showing a processing apparatus according to a second embodiment of the present invention.

FIG. 7 is a front view showing a processing apparatus according to a third embodiment of the present invention.

FIG. 8 is a front view showing a processing apparatus according to a fourth embodiment of the present invention.

FIG. 9 is a front view showing a processing apparatus according to a fifth embodiment of the present invention.

FIG. 10 is a front view showing a processing apparatus according to a sixth embodiment of the present invention.

FIG. 11 is a front view showing a processing apparatus according to a seventh embodiment of the present invention.

FIG. 12 is a front view showing a processing apparatus according to an eighth embodiment of the present invention.

FIG. 13 is a front view showing a processing apparatus according to Embodiment 9 of the present invention.

FIG. 14 is a front view showing a processing apparatus according to Embodiment 10 of the present invention.

FIG. 15 is a side view showing a processing apparatus according to Embodiment 11 of the present invention.

FIG. 16 is a sectional view taken along line XVI-XVI in FIG. 15;

FIG. 17 is a sectional view taken along line XVII-XVII in FIG. 16;

FIG. 18 is an explanatory diagram showing a manufacturing process of the double-edged band saw according to Embodiment 12 of the present invention.

FIG. 19 is a front view showing a processing apparatus according to Embodiment 13 of the present invention.

FIG. 20 is a front view showing a processing apparatus according to Embodiment 14 of the present invention.

FIG. 21 is a front view showing a processing apparatus according to Embodiment 15 of the present invention.

FIG. 22 is a front view showing a processing apparatus according to Embodiment 16 of the present invention.

FIG. 23 is a front view showing a processing apparatus according to Embodiment 17 of the present invention.

FIG. 24 is a front view showing a processing apparatus according to Embodiment 18 of the present invention.

FIG. 25 is a front view showing a processing apparatus according to a nineteenth embodiment of the present invention.

FIG. 26 shows a discarded CR according to a twentieth embodiment of the present invention.
It is a block diagram which shows the washing | cleaning apparatus of the processing apparatus of T display.

FIG. 27 is a configuration diagram showing a cleaning apparatus according to Embodiment 21 of the present invention.

FIG. 28 is a configuration diagram showing a cleaning apparatus according to a twenty-second embodiment of the present invention.

FIG. 29 is a configuration diagram showing a cleaning apparatus according to Embodiment 23 of the present invention.

FIG. 30 shows a discarded CR according to Embodiment 24 of the present invention.
It is explanatory drawing which shows the processing method of a T display.

FIG. 31 is an explanatory view showing an example of the phosphor separation step of FIG. 30.

FIG. 32 is an explanatory diagram showing a phosphor separating step according to Embodiment 25 of the present invention.

FIG. 33 is an explanatory diagram showing a phosphor separation step according to Embodiment 26 of the present invention.

FIG. 34 shows a CR discarded according to a twenty-seventh embodiment of the present invention.
It is explanatory drawing which shows the processing method of a T display.

FIG. 35 is an explanatory diagram showing an example of the flow of a conventional discarded television process.

[Explanation of symbols]

1 waste CRT display, 2 housing, 3 display body, 4,21 transfer table (moving means), 6 band saw, 10 cutting device, 11 panel, 11a glass piece, 12 funnel, 13 neck, 16 phosphor, 18 conductive Coating paint, 23 Movement control device, 25 Cutting load detecting device, 31, 34 Double blade band saw, 41 Water tank, 42 Water, 45 Hydrofluoric acid aqueous solution, 48
Foreign matter separation device, 49 liquid temperature control device, 50 sulfuric acid aqueous solution, 60, 71 cleaning device, 75 abrasive stone
77,79 Steel ball (polished stone), 80 sieve.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Eiichi Hirasawa 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric Corporation

Claims (24)

[Claims] 1. A housing having an opening at the front, a glass panel disposed at the opening, a funnel connected to the rear of the panel, and a neck connected to the rear end of the funnel. A processing apparatus for a waste CRT display for disassembling a waste CRT display having a display main body mounted in the housing, wherein the housing and the display main body are parallel to a front surface of the panel. An apparatus for processing a waste CRT display, comprising: a cutting device for simultaneously cutting along a surface; and a moving unit for relatively moving the waste CRT display with respect to the cutting device. 2. The waste CRT according to claim 1, wherein the cutting device has a band-shaped band saw for cutting the waste CRT display by being circulated, and a motor for circulating the band saw. Display processing unit. 3. The band saw according to claim 2, wherein the band saw is disposed to be inclined relative to a side surface of the housing.
A processing device for a waste CRT display as described in the above. 4. A moving control device connected to the moving means and controlling a moving speed and a moving direction of the waste CRT display relative to the cutting device by the moving means. Item 4. A processing apparatus for a waste CRT display according to any one of Items 3. 5. The processing apparatus for a waste CRT display according to claim 4, further comprising a cutting load detecting device connected to the movement control device and detecting a cutting load applied to the cutting device. 6. The processing apparatus for a waste CRT display according to claim 2, wherein the band saw is a double-edged band saw having blades formed at both end surfaces. 7. The processing apparatus for a waste CRT display according to claim 6, wherein the double-edged band saw forms a Mobius loop. 8. The apparatus according to claim 1, further comprising a water tank for storing a liquid, wherein the cutting device and the moving unit are arranged so that the cutting of the waste CRT display by the cutting device is performed in the liquid. A processing apparatus for a waste CRT display according to claim 7. 9. The processing apparatus for a waste CRT display according to claim 8, wherein the liquid is capable of dissolving a conductive coating material or glass applied to the inner surface of the funnel. 10. The processing apparatus according to claim 8, wherein the liquid is capable of dissolving lead. 11. The waste CRT display according to claim 8, further comprising a foreign matter separating device connected to the water tank and separating foreign matter mixed by cutting from the liquid. Processing equipment. 12. A liquid temperature control device connected to a water tank for controlling a temperature of a liquid.
A processing apparatus for a waste CRT display according to claim 11. 13. A high-pressure water jet to a display body cut by a cutting device to wash and remove at least one of a phosphor applied to a panel and a conductive coating paint applied to a funnel. 13. The processing apparatus for a waste CRT display according to claim 1, further comprising a cleaning device that performs the cleaning. 14. A phosphor coated on a panel and / or a conductive coating applied on a funnel by spraying water to which ultrasonic vibration is applied to a display body cut by a cutting device. 13. The processing apparatus for a waste CRT display according to claim 1, further comprising a cleaning device for cleaning and removing one of them. 15. A housing having an opening at the front, a glass panel disposed at the opening, a funnel connected to the rear of the panel, and a neck connected to the rear end of the funnel. A method of processing a waste CRT display for disassembling a waste CRT display having a display main body mounted in the housing, comprising: And a step of simultaneously cutting the housing and the display body on the panel side along a plane parallel to the front surface of the panel. 16. A cutting load is detected when the housing and the display main body are cut, and a relative moving speed and a moving direction of the waste CRT display with respect to the cutting device are controlled according to the detected cutting load. The method for processing a waste CRT display according to claim 15, wherein 17. The waste CRT display according to claim 15, wherein the waste CRT display is moved at a constant speed with respect to the cutting device regardless of the cutting resistance when the housing and the display main body are cut. Processing method. 18. The processing of a waste CRT display according to claim 15, wherein the cutting of the waste CRT display by the cutting device is performed while the waste CRT display is immersed in a liquid. Method. 19. A method comprising the steps of: crushing a panel and a funnel of a cut display body; separating a phosphor from the crushed panel; and separating a conductive coating material from the crushed funnel. The method for processing a waste CRT display according to any one of claims 15 to 18, wherein 20. The method for treating a waste CRT display according to claim 19, wherein the separation of the phosphor and the conductive coating material is performed by barrel polishing. 21. The method for treating a waste CRT display according to claim 20, wherein barrel polishing is performed by mixing an abrasive. 22. The method for treating a waste CRT display according to claim 21, wherein a magnetic material is used as the abrasive, and the abrasive is separated and collected by magnetic force after barrel polishing. 23. The waste CR according to claim 21, wherein an abrasive larger than the crushed glass piece is used, and the abrasive is separated and recovered by a sieve after barrel polishing.
T display processing method. 24. The method according to claim 19, further comprising the step of removing the lead by separating the conductive coating material from the crushed funnel and then cleaning the glass piece of the funnel with a liquid capable of dissolving lead. A method for treating a waste CRT display as described in the above.