JP4710501B2 - Foreign matter sorter - Google Patents

Description

  The present invention relates to a foreign material sorter for collecting glass material of a cathode ray tube used for a television or a computer display as a resource.

  Conventionally, various methods have been proposed for recycling glass materials of cathode ray tubes used for televisions and computer displays.

  The main work procedure is as follows.

  First, the TV and display are dismantled manually, and the cathode ray tube is taken out from the inside of the housing.

  Next, the cathode ray tube is divided into a panel and a funnel due to the difference in the characteristics of the glass constituting the cathode ray tube.

  After the division, the funnel is crushed by a crusher, which is the next process, into small glass pieces.

  On the other hand, after removing the fluorescent material applied to the inner surface of the cathode ray tube, the panel is crushed by a crusher as the next step.

  The crushing is performed by a crusher represented by a double roll crusher or a jaw crusher.

  And the crushed glass piece is dry-cleaned in the washing | cleaning process which is a next process.

  About this cleaning process, it is said that glass blasting is performed using glass powder, glass pieces are put in a container like a drum shaker, and the glass pieces that are the contents are rubbed together by rotating this container Things are a well-known method.

And after removing the foreign material on the surface of a glass piece by a washing | cleaning process, the glass piece as valuables can be collect | recovered by removing the mixed dust and metal waste using a sieving machine or a magnetic separator. (For example, see Patent Document 1 and Patent Document 2)
Note that the glass powder generated by the blast cleaning contains many foreign materials such as fluorescent materials, dust, and metal scraps, so that it is difficult to recycle and was discarded.
JP-A-10-137732 JP 2000-233170 A

  However, due to social demands in recent years, the need to recycle glass powder with a particle size of less than 1 mm, which has been disposed of in the past, has been increased when trying to improve the recovery rate of CRT glass materials. come.

  In other words, the discarded glass powder occupies about 5% by weight of the television set, and thus needs to be further improved.

  Moreover, in order to utilize the glass reprocessing apparatus described in the above-mentioned conventional technology, the number of treatments corresponding to the equipment is required.

  In other words, in the suburbs of large cities, although the number of CRTs that can be operated in the optimum state of the equipment can be obtained, there has been a problem of excessive capital investment in areas where there are few man-made areas or remote islands.

  Therefore, the present invention solves such problems, and recycles the glass powder generated in a large-scale facility, and provides a small foreign matter sorter suitable for an area where the number of treatments is small.

  In order to achieve the above object, according to the present invention, depending on the glass powder group to be charged, the flow path through which the glass powder group charged into the charging portion flows is either the first path or the second path. It is to switch.

  Further, according to the present invention, a buffer part is provided between the charging part and the flow path switching part to relax the impact of the glass powder group on the flow path switching part.

  With this configuration, it is possible to take out glass powder having a particle size of less than 1 mm from a glass powder group in which glass powder, coating material, dust, metal scraps, and the like are mixed.

  Also, with this configuration, the impact when the glass powder group collides with the flow path switching unit can be reduced.

  According to the present invention, since glass powder that has not been considered as a resource for recycling can be used as a recycling resource for glass material, the recovery rate of the reusable glass material obtained from the waste cathode ray tube is improved.

  In addition, according to the present invention, by providing a buffering part that relaxes the impact of the glass powder group on the flow path switching part between the input part and the flow path switching part, the wear of the flow path switching part is progressed. It becomes possible to suppress, and the ratio which maintains a foreign material sorter can be suppressed.

  Furthermore, since the panel and funnel processing steps are housed in one apparatus, the entire apparatus can be reduced in size, and a foreign material sorter with a scale that does not require excessive capital investment even in an area where the number of CRTs processed is small.

  In the embodiment of the present invention, the flow path through which the glass powder group charged into the charging section flows is switched between the first path and the second path according to the glass powder group to be charged. .

  As described above, since the coating material, dust and metal scrap mixed in the glass powder group can be selected and removed by the small integrated apparatus, fine glass powder can be recovered as a resource.

  As a result, the reuse rate of the glass material used in the cathode ray tube is improved.

  In another embodiment of the present invention, a buffer unit is provided between the input unit and the channel switching unit to buffer the impact of the glass powder group on the channel switching unit.

  By doing in this way, it becomes possible to reduce the abrasion by the collision of the flow-path switching part which switches the flow path through which glass powder flows, and to accelerate | stimulate grinding | polishing of glass powder.

  In particular, since glass powder has a small particle size, it often enters the gap of the sliding part of the flow path switching part, and the life of the parts constituting the flow path switching part is shortened to polish the sliding part. However, by providing the buffer portion, the glass powder is less likely to enter the gap between the sliding portions, so that the opportunity for maintenance can be suppressed.

  As a result, it is possible to suppress a decrease in the operating rate of the foreign matter sorter.

  Embodiments of the present invention will be described below with reference to the drawings.

Example 1
First, FIG. 1 shows a side view of the foreign matter sorter 1 of the present invention, and FIG.

  In the figure, reference numeral 3 denotes an input unit for supplying glass powder generated by performing a cleaning operation such as blast cleaning, a coating material mainly made of a fluorescent material, and a glass powder group 4 made of metal scrap or dust. Reference numeral 5 in the figure denotes a coating material removing unit for removing the above-mentioned foreign matters and carbon from the glass powder group 4 and sorting the glass powder, and can be realized by using a sieve or a wind sorter. .

  Next, reference numeral 6 in the figure denotes a magnetic force selection unit that removes metal scraps using a magnet, and the magnet used may be an electromagnet or a permanent magnet.

  These parts are connected as shown in FIG.

That is, the flow path switching unit 2 and the magnetic force sorting unit 6 located below the input unit 3 are connected using the first passage 7.

Also, using the second passage 8, the flow path switching unit 2 positioned below the charging unit 3 and the coating material removing unit 5 are connected, and the coating material removing unit 5 and the magnetic force sorting unit 6 are connected to the third channel 8. Connect through passage 9.

  In the above configuration, the flow path switching unit 2 is switched according to the glass powder group 4 to be charged. That is, in the case where the glass powder group 4 to be introduced is a glass powder group generated when the funnel is dry-cleaned using a blast cleaning or a drum shaker or the like, since there is no mixing of the coating material, as shown in FIG. The flow path switching plate 20 is set to the A position so that the charged glass powder group 4 flows to the magnetic force sorting unit 6 via the first passage 7.

On the other hand, when the glass powder group 4 to be added is a glass powder group that is generated when the panel is dry-cleaned, since there are a large amount of coating materials such as fluorescent materials and dust generated during the cleaning, A flow path switching plate 20 is set at a position B indicated by a dotted line in FIG. 2 so that the charged glass powder group 4 reaches the coating material removing unit 5 via the second passage 8.

  The coating material removing unit 5 is provided with a sieving machine and a wind power sorter (both not shown), and the foreign material 13a such as coating material and dust mixed in the glass powder group 4 is separated from the glass powder 4a. It is separated and removed from the dust exhaust port 10. The reusable glass powder 4 a is sent to the magnetic force sorting unit 6 via the third passage 9.

  As described above, scrap metal is removed from the glass powder (not shown) sent to the magnetic force sorting unit 6 along different paths by using the magnetic force of a magnet (not shown).

  The glass powder 4b having undergone the above steps can be recovered from the glass powder recovery port 11.

  Then, after removing the magnet from the magnetic sorting unit 6, the metal scrap 13b removed from the metal scrap recovery port 12 is recovered.

  Next, the flow path switching unit 2 will be described with reference to FIG.

  In the figure, reference numeral 20 denotes a flow path switching plate. By installing this flow path switching plate 20 at positions A and B in FIG. To the second passage 8.

  By the way, since the glass powder has a small particle size and has a polishing action, the place where the glass powder frequently collides with the flow path switching plate 20 is severely damaged, and the frequency of replacement of parts becomes high.

  In particular, the sliding portion where the flow path switching plate 20 slides from the A position to the B position tends to collect glass powder, and the glass powder easily enters the gap, so that the wear of parts is accelerated. The damage is severe.

  Furthermore, if the glass powder group 4 is too hard, there is a problem that the separation between the glass powder groups 4 does not proceed.

  Here, the buffer unit 21 is installed between the input unit 3 and the flow path switching unit 2.

  As shown in the figure, the buffer portion 21 is provided with a lattice-like plate, and the glass powder group 4 can be appropriately diffused.

  As a result, the collision of the glass powder group 4 with the specific part of the flow path switching plate 20 does not occur, and the occurrence of local wear can be suppressed, so that the maintenance frequency of the foreign matter sorter 1 can be suppressed. .

  Further, by appropriately diffusing the glass powder group 4, the separation of the glass powder from foreign matters such as dust and coating material is accelerated, and the foreign matter removing effect in the coating material removing unit 5 and the magnetic force sorting unit 6 is high. Become.

  That is, since the foreign matter adhesion and the foreign matter mixing rate of the collected glass powder 4b are reduced, the quality of the glass powder as a resource is improved.

  In addition, as described above, a foreign material sorter capable of processing both panel and funnel glass with an integrated apparatus has been realized, but depending on the amount of processing, the first passage 8 is removed, the second passage, It is also possible to have a simple configuration with only the third passage.

That is, although glass powder was used in the funnel is not necessary to go through the coating material removing unit 5, can but a foreign matter sorter 1 with simple configuration by increasing the number of working steps, more suppress initial investment capital It becomes possible to do.

  In other words, it becomes possible to tackle the recycling of glass without requiring excessive capital investment.

  INDUSTRIAL APPLICABILITY The present invention can be used for sorting all kinds of powders such as powders used for foods and scrap metal.

The side view of the foreign material sorter in one example of the present invention The principal part enlarged view of the flow-path switching part in one Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Foreign material sorter 2 Flow path switching part 3 Input part 4 Glass powder group 4a, 4b Glass powder 5 Coating material removal part 6 Magnetic force selection part 7 1st path 8 2nd path 9 3rd path 10 Dust exhaust Port 11 Glass powder recovery port 12 Metal scrap recovery port 13a Foreign matter 13b Metal scrap 20 Channel switching plate 21 Buffer

Claims (3)

An input part for introducing a glass powder group generated by a cleaning operation of a small glass piece obtained by crushing a cathode ray tube glass, an application material removing part for removing an application material applied to the glass powder, and the glass powder A magnetic force sorting part for sorting metal scraps mixed in the group, a flow path switching part between the charging part, the coating material removing part and the magnetic force sorting part, and one end connected to the flow path switching part. A first passage connecting the other end to the magnetic force sorting unit, a second passage connecting one end to the flow path switching unit and the other end to the coating material removal unit, and one end to the coating material removal unit the connection to the other end; and a third passage connecting said magnetic separation unit and the flow path switching section is turned on the glass powder group generated by the cleaning operation of the funnel of the cathode ray tube glass into the insertion portion wherein a flow path through which the glass powder group when A first passage, characterized in that the flow path through which the glass powder group when introducing the glass powder group generated by the cleaning operation of the panel of the cathode ray tube glass into the insertion portion switches and the second passage Foreign matter sorter. The foreign matter sorter according to claim 1, further comprising a buffer unit that relaxes an impact of the glass powder group on the channel switching unit between the charging unit and the channel switching unit. . The foreign matter sorter according to claim 1 or 2, wherein the glass powder group is made of glass powder having a particle size of less than 1 mm.

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