JPH1147628A - Crushing system - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a crushing system capable of efficiently sorting valuable and harmful substances. SOLUTION: The dust crushed and sorted by the coarse crushing sorting means 20 is further crushed and sorted by the fine crushing sorting means 30.
The dust crushed and sorted by the fine crushing and sorting means 30 is further crushed and sorted by the fine crushing and sorting means 40. in this way,
Multi-stage processing of coarse crushing, fine crushing, and fine crushing is performed to obtain valuable materials with high purity. Since the fine crushing is performed by the fine crushing and sorting means 40, gold, silver, aluminum, and solder used for terminals and contacts can be collected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crushing system for crushing and reusing waste and the like. In particular, the present invention relates to a system for improving the recovery rate of useful and valuable materials from crushed crushed materials. Also,
The present invention relates to a system for removing harmful substances from crushed crushed materials to make them harmless.

[0002]

2. Description of the Related Art FIG. 8 is a diagram showing a conventional waste disposal apparatus described in Japanese Patent Application Laid-Open No. 8-267455.
The prior art will be described below with reference to the figures and the explanatory texts shown in the official gazette.

[0003] First, the waste household electrical appliances 161
The pre-processing is performed at 2, and the CRT of the television reaches the large glass processing device 163, the various boxes and metal lumps reach the crushing device 164, and the refrigerant CFCs reach the CFC decomposition device 165.

[0004] The cullet is recovered from the large glass processing apparatus 163. The cullet includes a panel cullet, a funnel cullet, and a neck cullet. CFC decomposition device 1
From 65, NaCl and CaF ₂ are obtained. Crushing device 1
A sorting device 166 is provided at the subsequent stage of the 64. In the sorting device 166, metals such as Fe, Cu, and Al and a plastic are separated, and the plastic is further passed through a plastic processing device 169 as solid fuel or oil. Collected.

On the other hand, in the sorting device 166, the foaming material is also separated and reaches a foaming agent treatment device 167, a part of which is effectively used as an adsorbent such as oil, and the other part is a depolymerization device 17.
0, it becomes a chemical product such as a plastic material, and the remaining, that is, the CFC foam reaches the CFC decomposition device 165. In the CFC decomposition device 165, as described above, N
aCl and CaF ₂ are obtained.

[0006] Large glass processing apparatus 163, crushing apparatus 16
4. Dust from each of the foam material processing devices 167 reaches the dust processing device 168, and landfills after the processing are performed. On the other hand, the solid fuel or oil obtained from the plastic processing device 169 is also supplied as a heat source to the dust processing device 168, the depolymerization device 170, and the CFC decomposition device 165. A portion of the plastic leaving the sorting device 166 may be supplied directly to the depolymerization device 170. The material selected from the plastic processing device 169 can be used for a pile or a plate. The selected plastic is
It is converted again into a plastic material or another chemical substance by a depolymerization apparatus. The inside of the pretreatment device 162 first enters the sorting means 172 via the model identification device 171, where the washing machine is a metal lump separating means 173, a large glass separating means 174 is a refrigerator and an air conditioner is a chlorofluorocarbon wiping means 175. , And the others lead to a crushing device 164 at a later stage. Metal lump separation means 17
3 is also supplied through a large glass separating means 174 and a CFC wiping means 175. That is, the pre-processing device 162 of this example includes the model identification device 171 and the sorting unit 17.
2. Metal lump separating means 173, large glass separating means 17
4. It is composed of CFC wiping means 175 and a transport path connecting them.

The crushing device 164 is provided with a metal lump separating means 173.
, The separated material from the sorting means 172 and, in some cases, the separation from the large-sized glass separating means 174, are charged and crushed.

[0008] The sorting device 166 is composed of a light material separating means 176, a metal sorting means 177, and a plastic sorting means 178 in order from the upstream side. Metal sorting means 17
7 recovers Fe, Cu, Al, and the like.

The inside of the crushing device 164 is provided with a coarse crusher 179 and a peeling crusher 180 in order from the upstream side.
From the metal lump separating means 173, there are ones that enter the coarse crusher 179, those that enter the peeling crusher 180, and those that are subjected to dust treatment. Most of those that have passed through the peeling and crushing machine 180 reach the lightweight object separating means 176, but dust reaches the dust treatment device 168. In addition, the peeling crusher 180 may be replaced with an impact crusher.

There are a plurality of conventional examples using a primary crusher and a secondary crusher, and these can be classified into the following types. Type 1. A type in which a primary crusher and a secondary crusher are used continuously. That is, a type in which sorting is not performed between the primary crusher and the secondary crusher, and sorting is performed only downstream of the secondary crusher. Example 1: JP-A-5-146701 (Selection after crushing by primary crusher and secondary crusher) Example 2: JP-A-8-267455 (Coarse crusher 1 described above)
79 and sorting after crushing by the peeling crusher 180) Type 2.1 Primary sorting and secondary sorting are performed downstream of the primary crushing machine and the secondary crushing machine, respectively. Different types of objects. Example 1: JP-A-6-226241 (primary sorting is metal, 2
Example 2: Japanese Patent Application Laid-Open No. Hei 8-10743 (Foreign material is used for primary screening, valuable material is used for secondary screening) Example 3: Japanese Patent Application Laid-Open No. 8-57853 (Metal is used for primary screening, and plastic or secondary screening is used) Blowing agent) Type 3. The primary sorting is performed downstream of the primary crusher.
A type that does not perform secondary sorting downstream of the next crusher. That is, the secondary crushing is performed for reducing the size and sizing. Example 1: JP-A-8-267034 (primary sorting is metal, 2
Example 2: JP-A-9-29204 (Primary sorting is metal, No secondary sorting) Type 4. Primary sorting and secondary sorting downstream of primary and secondary crushers The type to be selected is one type and the same type in primary and secondary sorting. Example 1: JP-A-9-24360 (Primary sorting is iron, secondary sorting is also iron)

[0011]

In the conventional waste disposal apparatus, after crushing is performed once in the crushing apparatus 164, valuable resources are sorted by the sorting apparatus 166. Crushing device 1
64 is constituted by a coarse crusher 179 and a peeling crusher 180, and the coarse crusher 179 and the peeling crusher 180
The valuables are sorted out from the crushed materials generated by the crushing process by the above. However, in the conventional method, the crushed size is large, and there is a complex in which harmful substances and other substances are combined. There was a problem that valuables were mixed in the goods. In particular, there is a problem in that waste cannot collect precious metals such as gold and silver used for small parts such as terminals and contacts. Similarly, there has been a problem that harmful substances such as lead contained in solder used for contact points cannot be collected.

[0012] Further, in the conventional waste treatment system of any of the types 1 to 4 described above, valuables or
There was a problem that harmful substances were contained.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a crushing system that improves the recovery rate of valuable resources. Also,
It is an object of the present invention to obtain a crushing treatment system for detoxifying waste finally discarded by sorting out harmful substances. In addition, by improving the sorting rate of valuable resources or the sorting rate of harmful substances, the amount of final waste can be reduced, the cost of transporting waste and the amount of landfilled waste can be reduced. The purpose is to obtain a crushing processing system that can be realized.

[0014]

A crushing system according to the present invention receives a crushed object as a coarsely crushed object and coarsely crushes it, and sorts valuable resources from the coarsely crushed coarsely crushed material. By the crushing and sorting means and the first crushing and sorting means, the remaining coarsely crushed material from which the valuable material has been sorted is received as a fine crushed object and finely crushed, and the valuable material is selected from the finely crushed finely crushed material. The second crushing and sorting means and the second crushing and sorting means accept the remaining finely crushed material from which valuables have been selected as finely crushed objects and finely crush the same. And a third crushing and sorting means for sorting the crushed material.

The crushing system according to the present invention is characterized in that the first, second and third crushing and sorting means are selectively operated according to the components of the crushing object.

The crushing processing system according to the present invention further includes a pre-processing unit for breaking up the crushed object into a coarsely crushed object and a fine crushed object, and the first crushing and sorting means uses the pre-processing unit to disassemble the crushed object. The second crushing and sorting means crushes the coarsely crushed material that has been crushed by the first crushing and sorting means and the finely crushed material that has been dismantled by the preprocessing unit. It is characterized by doing.

The crushing system according to the present invention has a second
Or, the third crushing and sorting means, when the valuable material selected by the first or second crushing and sorting means is a valuable material with low purity,
It is characterized in that the valuable material selected by the first or second crushing and sorting means is received and crushed as a crushing object.

Each of the first, second, and third crushing and sorting means according to the present invention includes a crusher for crushing an object to be crushed, and a sorting means for separating a valuable material from the crushed crushed material. It is characterized by the following.

The sorting means includes a sieve for sorting the crushed crushed materials by size, and the crusher receives the crushed materials selected by the sieve again as crushing objects and crushes them.

[0020] The sorting means includes one or more kinds of sorting machines, and the sorting means selectively operates the sorting machines according to the components of the crushed material.

The above-mentioned sorting means is commonly used for at least two types of coarsely crushed, finely crushed and finely crushed materials crushed by the first, second and third crushers. It is equipped with a sorting machine.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. FIG. 1 is an overall configuration diagram of a crushing system of the present invention. The crushing processing system of the present invention includes a pre-processing unit 10, a coarse crushing and sorting unit 20 as a first crushing and sorting unit, a fine crushing and sorting unit 30 as a second crushing and sorting unit,
It comprises a fine crushing and sorting means 40 as a third crushing and sorting means. The coarse crushing sorting means 20 includes a coarse crushing machine 21 and a coarse crushed material sorting means 22. The fine crushing sorting means 30 includes a fine crushing machine 31 and a fine crushed material sorting means 32. The fine crushing and sorting means 40 comprises a fine crushing machine 41 and a finely crushed material sorting means 42.

An object 51 to be crushed is put into the pre-processing section 10. The crush object 51 is a structure made of a composite material such as waste electronics and waste electrical equipment. For example, TV, refrigerator,
The OA equipment, the control panel, and the like are the crushing objects 51. The pre-processing unit 10 decomposes the crushed object 51 into a coarse crushed object 52 and a fine crushed object 53. Furthermore, harmful parts and reusable parts are taken out. The harmful parts are, for example, capacitors and CRTs.
(Cathode ray tube). Reusable parts are electronic parts such as a CPU (Central Processing Unit) and a memory used in a computer, or
Refers to recyclable resins. Details of the processing and operation of the preprocessing unit 10 will be described later.

The coarse crushing and sorting means 20 includes a coarse crushing target 52.
And coarsely crushed material 62 is produced and sorted. Coarse crusher 21
Can be used to reduce the size of housings and
It is crushed to about 0 mm. Crushed material sorting means 2
No. 2 sorts valuable materials such as iron, copper, and aluminum from the coarsely crushed material 62. FIG. 2 shows the coarse crushed material sorting means 2
FIG. The coarsely crushed material sorting means 22 includes a vibrating sieve 23, a magnetic force sorter 24, and an eddy current sorter 25. The vibrating sieve 23 sorts the roughly crushed material 62 according to the size. Those whose size is over are fed into the coarse crusher 21 again, where coarse crushing is performed. The magnetic force sorter 24 sorts iron by magnetic force. The eddy current sorter 25 sorts non-ferrous metals such as copper and aluminum by eddy current. As shown by the arrows in FIG. 2, the vibrating sieve 23, the magnetic force sorter 24, the eddy current sorter 2
5 selectively operates. When the selection is not performed according to the size, the coarse crushed material 62 is directly transferred to the magnetic separator 24.
Alternatively, it may be put into the eddy current sorter 25. Or,
If it is known in advance that the crushed material 62 does not include iron, the magnetic force sorter 24 may not be operated. Similarly, if it is known that non-ferrous metals are not included, the eddy current sorter 25 may not be operated. Thus, the processing route can be arbitrarily switched according to the content of the crushed material. The reason why the vibrating sieve 23 is provided is to improve the sorting ratio by the magnetic force sorter 24 or the eddy current sorter 25 by making the sizes and shapes uniform. In addition, coarse crusher 2
There is a device that can unify the size of the coarse crushed material 62 by operating the device 1 for a long time. May be given. Therefore, instead of shortening the operation time of the coarse crusher 21, the vibrating sieve 23 is provided to
2 is again coarsely crushed.

The fine crushing and sorting means 30 has a size of 50 mm to 10 mm.
The object 53 to be crushed about 0 mm is thrown in, crushed into a size of about 10 mm, and sorted. The fine crushed object 53 supplied to the fine crusher 31 is the remaining coarse crushed material 62 sorted by the coarse crushed material sorting means 22. Alternatively, the fine crushing object 5 that has been disassembled and stored by the pre-processing unit 10
3. Alternatively, among the valuable materials such as iron, copper, and aluminum once classified as valuable materials by the coarsely crushed material sorting means 22, they are determined to be valuable materials with low purity. The purity of the valuables may be determined individually for the selected valuables. Alternatively, it may be determined that the entire valuables selected by the coarsely crushed material sorting means 22 have low purity, based on the properties and contents of the input crushing object 51. The finely crushed material 63 crushed by the fine crusher 31
The crushed material is sorted by the sorting means 32.

FIG. 3 shows the configuration of the shredded material sorting means 32. The fine crushed material sorting means 32 includes a vibrating sieve 33, a magnetic force sorting machine 34, an eddy current sorting machine 35, and a wind force sorting machine 36. The vibrating sieve 33, the magnetic force sorter 34, and the eddy current sorter 35 are the same as those shown in FIG.
However, the vibrating sieve 33 is finer than the sieve eyes of the vibrating sieve 23. That is, the vibrating sieve 33 selects whether or not the size of the finely crushed material 63 is appropriate. Those whose size is over are fed into the shredder 31 again. The wind power sorter 36 sorts the finely crushed material 63 by wind power. By wind power
Plastic, metal and dust can be sorted. That is, the finely crushed material 63 can be sorted by weight. As shown by arrows in FIG.
It is possible to arbitrarily switch the processing route according to the contents of the above.

As can be seen by comparing FIGS. 2 and 3, the coarsely crushed material sorting means 22 and the finely crushed material sorting means 32 are configured to select a plurality of types of the same valuable material. That is, in the coarse crushed material sorting means 22, iron is sorted by the magnetic force sorting machine 24, and in the fine crushed material sorting means 32, iron is sorted by the magnetic force sorting machine 34. Similarly, the non-ferrous metal is sorted by the eddy current sorter 25 and the eddy current sorter 35 is selected.
Sorts non-ferrous metals. As described above, in the coarsely crushed material sorting means 22 and the finely crushed material sorting means 32, a great feature of the present invention is that various kinds of valuables are sorted out step by step. In other words, a multi-stage process of coarsely crushing and selecting a plurality of valuables and further finely crushing and selecting a plurality of valuables is performed, so that a plurality of types of highly valuable materials can be obtained. There is an effect that valuables that cannot be obtained at the stage of coarse crushing can be obtained by fine crushing. When fine crushing is performed without sorting after coarse crushing, the crushed material is merely finely divided, which may make sorting difficult. The present invention performs a multi-stage process in which, at the stage of coarse crushing, a plurality of valuables are once sorted out from the coarsely crushed material, and the remaining coarsely crushed material is further finely crushed to further sort out the plurality of valuables. ing. Furthermore, when the purity of valuables sorted after coarse crushing is low, fine crushing is performed, so that fine crushing can be performed again even when sorting by coarsely crushed material is not intended, and sorting can be performed. .

The finely crushed material sorting means 32 has a wind separator 36 which the coarsely crushed material sorting means 22 does not have. Sorting by wind power is not so effective for coarse crushed material 62 of 50 mm or more, and is considered to be effective for fine crushed material 63 of 10 mm to 50 mm.
6 is provided in the shredded material sorting means 32. Thus, the most appropriate sorting method is used depending on the size of the crushed material. In addition, the coarse crushed material sorting means 22 may be provided with a wind force sorting machine.

The fine crushing and sorting means 40 comprises a fine crushing and sorting means 3
The remaining finely crushed material 63 selected in 0 is finely crushed
As Alternatively, among the valuable materials selected by the finely crushed material selection means 32, valuable materials having low purity are finely crushed into the object 5.
Enter as 4. The finely crushed material 64 crushed by the fine crusher 41 is crushed to a size of about 1 mm to 2 mm, and sorted by the finely crushed material sorting means 42.

FIG. 4 shows the configuration of the finely crushed material sorting means 42. The vibrating sieve 43 sorts the finely crushed material 64 having a size of 1 mm to 2 mm or more and puts it into the fine crusher 41 again. The vibrating air table 47 is for separating metal and non-metal according to specific gravity. In the fine crusher 41, non-ferrous metals, particularly aluminum and copper, are crushed so as to be granulated. In addition, the particles are finely crushed so that the solder attached to the printed circuit board can be peeled off. Therefore, the vibrating air table 47 can sort the granulated metal. In addition, crushing by the fine crusher 41
Since it is about 1 mm to 2 mm, noble metals such as gold, silver, and the like used for small parts such as terminals and contacts can be collected in addition to iron, copper, and aluminum. Although not shown, if various sorters shown in FIG. 3 are provided to sort iron and non-ferrous metals, the recovery rate of valuable resources can be further improved.

As described above, according to the present invention, in addition to the two-stage process of coarse crushing and sorting, and further fine crushing and sorting, a third stage of fine crushing and sorting is further performed. It is characteristic. By performing the third-stage treatment, it is possible to collect noble metals such as gold and silver and to collect solder and the like attached to a printed circuit board, which could not be obtained conventionally. In particular, the fine crusher 41 performs crushing so that different materials included in the composite can be separated or separated. Then, crushing for granulating the separated and separated material is performed. As described above, since the noble metal or the metal is granulated, the shape is simplified, and the sorting efficiency is improved.

Next, the processing and operation of the preprocessing unit 10 will be described with reference to FIG. FIG. 5 shows a case in which the crushing target 51 is a television, a refrigerator, a waste OA (office automation) device, or a control panel. The preprocessing unit 10 removes the CRT from the television and sends the CRT to a process for processing the CRT. In addition, the plastic panel and the casing are removed and sent to a process for processing wood and plastic. Further, the substrate is removed, screws, metal rods and the like are removed, and the substrate is put into the crusher 31. Further, the deflection yoke is removed, and the deflection yoke is put into the shredder 31. Other parts are put into the coarse crusher 21. In the case of a refrigerator, recover refrigerant Freon and refrigerating machine oil. The compressor is removed, the container is cut with a laser, and the motor part inside the compressor is taken out and disassembled. Containers and motor parts are supplied by the coarse crusher 21
It is thrown into. In some cases, it may be charged into the crusher 31. Other parts of the refrigerator are put into the coarse crusher 21. In the case of the waste OA equipment, the printed circuit board and the connector are removed, and the waste OA equipment is put into the shredder 31. Others are charged to the coarse crusher 21. In the case of the control panel, the NFB (non-fuse breaker), the relay and the circuit breaker are fine shredders 31.
It is thrown into. Other parts are put into the coarse crusher 21. In addition, the shredder dust 55 generated by the coarse crusher 21 is also input to the fine crusher 31 as the fine crushing target 53. The shredder dust 55 refers to the remaining crushed material obtained by separating valuable resources from the coarsely crushed material 62 crushed by the coarse crusher 21 by the coarsely crushed material selection means 22. Conventionally, the shredder dust 55 has been discarded as it is, but as in this embodiment, the valuable material in the shredder dust 55 can be sorted by being re-input to the fine crusher 31. In this way, the shredder dust 55 is again used as the fine crushing target 53,
0, so shredder dust 55
The amount of waste can be reduced, the amount of final waste can be reduced, the transportation cost can be reduced, and the amount of landfill can be reduced.

FIG. 6 shows an example of the fine crushing object 53 input to the fine crushing and sorting means 30 and valuables and wastes to be sorted by the fine crushing and sorting means 30. No. No. 1 to No. Reference numeral 6 denotes a fine crushing target 53 that has been disassembled and stored by the preprocessing unit 10. No. 7 to No. 7 9 is the remaining shredder dust 55 crushed and sorted by the coarse crushing and sorting means 20.
The fine crusher 31 finely crushes these fine crushing objects 53, and the condition is that metal and plastic must be separated. As a metal to be separated, there is a metal as shown in FIG. Further, at least plastic is separated as waste.

A feature of the present invention resides in that at least three different sizes of crushing are performed, and valuables are selected at each stage. In FIG. 8 shown in the conventional example or other conventional techniques, the selection of iron or aluminum, which is a valuable resource, is performed only once. By changing the size of valuables as in the present invention, valuables with high purity can be obtained. For example, the size of the coarse crushed material is 50 m
m or more, the crushed material naturally includes a structure made of a composite material. Even if the structure made of such a composite material is to be sorted by one-time sorting, the sorting efficiency is not improved. Alternatively, valuable materials with low purity are included. In order to compensate for such a defect, the coarsely crushed material is further finely crushed or further finely crushed, and the valuable material is sorted again. As described above, the composite material gradually becomes a single material by fine crushing and fine crushing. Since a single material is sorted, the sorting efficiency is improved. In the case of fine crushing and fine crushing, not only crushing but also crushing is performed so that different kinds of materials can be separated and different kinds of materials can be separated so as to be suitable for sorting. In addition, a single material can be granulated. By performing such fine crushing and fine crushing, the sorting effect is remarkably improved. In particular, 100
In this system, the recovery rate is conventionally only about 50%, whereas in this system, 90% or more can be selectively recovered as valuables. In addition, it is possible to recover 97% or more of valuable resources.

In FIG. 8 shown as a conventional example,
JP-A-8-57853 discloses an example in which a crushing device is used in a foaming material processing device 167 and a plastic processing device 169 in addition to the crushing device 164. The secondary crushing devices used inside the foam material processing device 167 and the plastic processing device 169 are a crushing device dedicated to foam material and a crushing device dedicated to plastic. That is, it is a crushing device for further selecting the selected valuables. On the other hand, the fine crusher 31 and the fine crusher 41 of the present invention are crushers for shredder dust crushed upstream, that is, the remaining crushed material from which valuables have been removed. The present invention is characterized in that the shredder dust is treated in multiple stages, and in the conventional example, the shredding dust is subjected to the crushing process in multiple stages in this manner, and the technology of sorting valuable resources is not disclosed. Nothing is disclosed.

The present invention is different from any of the above-mentioned types 1, 2, 3, and 4 described as the prior art.
That is, the point of performing primary crushing, primary sorting, secondary crushing, secondary sorting, tertiary crushing, and tertiary sorting has not been found in the past. Furthermore, in that the same valuables are included as objects to be sorted in the primary sorting, the secondary sorting, and the tertiary sorting, the types 1, 2, and
Different from any of 3 and 4.

A feature of the present invention resides in that multi-stage processing of at least three or more stages is performed. Therefore, although not shown,
A case of performing multi-stage processing of four or more stages may be used. Also,
As shown in FIG. 7A, a coarse crushing / sorting unit 20, a fine crushing / sorting unit 30, and a fine crushing / sorting unit 40 may be provided, and only necessary ones may be operated. For example, when processing the crushing object 51 having a low degree of complexity, only the coarse crushing and sorting means 20 may be operated, and the fine crushing and sorting means 30 and the fine crushing and sorting means 40 may be omitted. In addition, as shown in FIG. 7 (b), the sorting means of the coarse crushing sorting means 20, the fine crushing sorting means 30, and the fine crushing sorting means 40 may be used as the sorting means 11 which is commonly used.
By using a common or shared sorting machine for the sorting means, the cost of the entire system can be reduced. Although not shown, the sorting means 11 may not be common to all of the coarse crushing and sorting means 20, the fine crushing and sorting means 30, and the fine crushing and sorting means 40, and the coarse crushing and sorting means 20, the fine crushing and sorting means 30,
It is only necessary that any two sorters of the fine crushing and sorting means 40 can be shared. Further, the pre-processing unit 10 is not always necessary, and the pre-processing unit 10 may be omitted. Or,
The processing performed by the preprocessing unit 10 may be manually performed by a human. The configuration of the sorting means shown in FIGS. 2, 3, and 4 is an example, and other configurations may be adopted. Alternatively, a sorter by another method may be used. In addition, the vibration sieve shown in FIGS.
It is not always necessary and may be omitted. In addition, each sorter only needs to be provided with at least one sorter, and there is no need to have a plurality of sorters. Further, in this embodiment, the crushing processing system for crushing waste has been described, but the crushing target is not limited to waste, but may be any as long as it contains some valuable material. For example, iron ore containing iron, rock containing gold, silver, and copper may be used. The object to be destroyed is not limited to an artificial object, but may be a natural object.

[0038]

As described above, according to the present invention, coarse crushing and fine crushing are performed, and the sorting process is performed in multiple stages. Therefore, there is an effect that valuable materials with high purity can be obtained. In addition, since fine crushing and sorting are performed, precious metals such as gold and silver used for small components such as terminals and contacts can be recovered, and harmful substances such as lead contained in solder can be recovered. it can.

Further, according to the present invention, the processing route of the crushing and sorting means can be selected according to the content of the crushed material, so that the running cost (energy consumption and maintenance) of the equipment used for the crushing and sorting means can be minimized.

Further, according to the present invention, since the disassembly is performed in advance by the pretreatment unit, valuable and harmful substances can be collected before crushing, and the processing capacity of the crushing and sorting means can be reduced.

Further, according to the present invention, the valuables selected on the upstream side can be fed into the crusher on the downstream side. Therefore, even if valuables with low purity are selected on the upstream side, valuables with high purity are consequently converted into valuables. Obtainable.

Further, according to the present invention, the crushing selection means can be divided into two structures, a crusher and a selection means, so that replacement of the crusher and replacement of the sorting means can be easily performed.

Further, according to the present invention, the processing route of the sorting means can be selected according to the content of the crushed material, so that the running cost (energy consumption, maintenance) of the equipment used for the sorting means can be minimized.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a crushing system of the present invention.

FIG. 2 is a configuration diagram of coarsely crushed material sorting means 22.

FIG. 3 is a configuration diagram of the shredded material sorting means 32.

FIG. 4 is a configuration diagram of a finely crushed material sorting means 42.

FIG. 5 is a diagram showing a specific example of a crushed object and a crushed material.

FIG. 6 is a diagram showing a shredded object and a sorted material.

FIG. 7 is another configuration diagram of the present invention.

FIG. 8 is a diagram showing a conventional waste disposal apparatus.

[Explanation of symbols]

Reference Signs List 10 pretreatment unit, 20 coarse crushing sorting means, 21 coarse crushing machine, 22 coarse crushed material sorting means, 30 fine crushing sorting means,
31 fine crushing machine, 32 fine crushed material sorting means, 40 fine crushing sorting means, 41 fine crushing machine, 42 fine crushed material sorting means, 51 crushed object, 52 coarse crushed object, 53 fine crushed object, 54 fine crushed Object, 62 coarsely crushed material, 63
Finely crushed material, 64 finely crushed material.

Continued on the front page (72) Inventor Etsuo Ohno 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsui Electric Co., Ltd. (72) Inventor Yasuto Iseki 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsubishi Electric (72) Inventor Ryuzo Yasukawa 24-1-1 Togawa, Hadano-shi, Kanagawa Prefecture Nissan Trading Co., Ltd. (72) Katsuichi Iizuka 4-1-7 Akayamacho, Koshigaya-shi, Saitama Prefecture Shinwa Machine Industries

Claims (8)

[Claims] 1. A first crushing and sorting means for receiving a crushed object as a coarsely crushed object and coarsely crushing and sorting valuable resources from the coarsely crushed coarsely crushed material, and a first crushing and sorting means. A second crushing and sorting means for receiving the remaining coarsely crushed material from which the valuables have been sorted as a finely crushed object and finely crushing the same, and for separating valuables from the finely crushed finely divided material; A third crushing and sorting means for receiving the remaining finely crushed material from which the valuables have been sorted as the object to be finely crushed and finely crushing, and for separating valuables from the finely crushed finely divided material. A crushing processing system, characterized in that: 2. The crushing system according to claim 1, wherein the crushing system selectively operates the first, second, and third crushing and sorting means in accordance with the components of the crushing object. 3. The crushing processing system further includes a pre-processing unit for disassembling the crushed object into a coarse crushed object and a fine crushed object, and the first crushing and sorting means is dismantled by the pre-processing unit. While crushing the coarse crushed object, the second crushing and sorting means is to crush together the coarsely crushed material crushed by the first crushing and sorting means and the finely crushed material disassembled by the preprocessing section. The crushing processing system according to claim 1, wherein: 4. The second or third crushing and sorting means, when the valuable material selected by the first or second crushing and sorting means is a valuable material with low purity, the first or second crushing and sorting means. 2. The crushing system according to claim 1, wherein the crushing system receives and crushes the valuables selected as the objects to be crushed. 5. The first, second and third crushing and sorting means,
The crushing system according to claim 1, further comprising a crusher for crushing the crushed object and a sorting unit for sorting valuable materials from the crushed crushed material. 6. The sorting means includes a sieve for sorting the crushed crushed materials according to size, and the crusher receives the crushed materials selected by the sieve again as a crushing object and crushes them. Item 6. A crushing system according to Item 5. 7. The crushing machine according to claim 5, wherein the screening means includes one or more kinds of screening machines, and the screening means selectively operates the screening machine in accordance with a component of the crushed material. Processing system. 8. The sorting means is used in common for at least two types of coarsely crushed material, finely crushed material and finely crushed material crushed by the first, second and third crushers. The crushing processing system according to claim 5, further comprising a sorter that can be used.