WO2014174699A1 - リサイクル原料のサンプリング方法及びサンプリング装置、リサイクル原料の分析用サンプル、並びにリサイクル原料の評価方法 - Google Patents
リサイクル原料のサンプリング方法及びサンプリング装置、リサイクル原料の分析用サンプル、並びにリサイクル原料の評価方法 Download PDFInfo
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- WO2014174699A1 WO2014174699A1 PCT/JP2013/074845 JP2013074845W WO2014174699A1 WO 2014174699 A1 WO2014174699 A1 WO 2014174699A1 JP 2013074845 W JP2013074845 W JP 2013074845W WO 2014174699 A1 WO2014174699 A1 WO 2014174699A1
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- scrap
- waste
- recycled
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- 239000002994 raw material Substances 0.000 title claims abstract description 189
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000005070 sampling Methods 0.000 title claims description 50
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- 239000002699 waste material Substances 0.000 claims description 204
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- 229910052751 metal Inorganic materials 0.000 claims description 18
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- 239000006148 magnetic separator Substances 0.000 claims description 10
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- 239000010949 copper Substances 0.000 description 10
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- 239000010931 gold Substances 0.000 description 7
- 238000010298 pulverizing process Methods 0.000 description 7
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Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4077—Concentrating samples by other techniques involving separation of suspended solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Definitions
- the present invention relates to a recycled material containing valuable metals other than iron (Fe) and aluminum (Al), such as gold (Au), silver (Ag), copper (Cu), platinum (Pt), palladium (Pd) and the like.
- the present invention relates to a sampling method and a sampling apparatus for a recycled material, a sample for analyzing the recycled material, and a method for evaluating the recycled material.
- Electronic boards, flexible boards, IC chips, mobile phones and the like used for electronic devices contain gold, silver, copper, palladium and the like. Further, photographic film, movie film, X-ray film, photographic paper and the like contain silver. It has been proposed to reuse waste such as electronic substrates, IC chips, mobile phones, flexible substrates, films, and photographic paper as recycled materials. For example, the above-mentioned waste is burned in a rotary kiln furnace or the like to form combustion ash, and the combustion ash is put into a copper smelting furnace or the like, and the above-mentioned valuable metals are recovered in the process of copper smelting.
- the transaction price is determined by the content of valuable metals contained in the recycled materials.
- human beings manually collect analytical samples from recycled materials, separate the portions where valuable metals are concentrated or parts that do not contain valuable metals when collecting analytical samples. As a result, recycling materials could not be evaluated correctly. Therefore, there is a possibility that a difference occurs between the evaluation on the side of delivering the recycled material and the evaluation on the side of receiving the recycled material.
- Patent Document 1 discloses a step of crushing recycled raw materials, a primary mixing step of stirring and mixing the crushed material, a primary reduction step of reducing the stirred and mixed crushed material, and a reduced crushing A pulverized product after the secondary reduction step, comprising: a pulverization step for further pulverizing the product; a secondary mixing step for stirring and mixing the pulverized product; and a secondary reduction step for reducing the stirred and mixed pulverized product.
- a method for sampling a recycled material using as a sample for analysis is disclosed.
- Patent Document 2 the recycled raw material is crushed with a crusher to obtain a primary crushed material, and the primary crushed material is further crushed with a crusher to obtain a secondary crushed material.
- a method has been proposed in which a crushed material having a size of 30 mm or less is collected as a sample by separating the crushed material larger than 30 mm and crushing the crushed material again with a crusher.
- the recycled raw material section other than Fe scrap and Al scrap is pulverized. It was hoped that.
- the recycled raw materials are mixed with recycled raw material portions other than Fe scrap and Al scrap, and highly malleable Fe scrap and Al scrap. It was not possible to fully meet the demand for miniaturization of industrial samples.
- Fe scrap and Al scrap are extremely unevenly distributed in the recycled material, and even if sampling is performed in an unevenly distributed state, the influence of segregation is inevitable and there is a limit to homogenization of the sample for analysis. .
- the recycled raw material can be finely pulverized even in a state where Fe scrap and Al scrap are mixed.
- the impact type pulverizer has a very small amount of recycled raw material, and is not suitable for automatically obtaining a sample for analysis from the recycled raw material.
- the present invention provides a sampling method and a sampling apparatus for a recycled material that can collect a homogeneous analysis sample and can perform an accurate evaluation, and an analysis sample.
- the method of sampling a recycled material includes a step of primary crushing a recycled material and a material after the primary crushing as “Fe scrap”, “Al scrap”, “Fe scrap and Al scrap”
- Three types of “recycled raw materials other than Fe waste and Al waste” after the next reduction are used as samples for analysis.
- a sample obtained by pulverizing “recycled raw materials other than Fe scrap and Al scrap” without being influenced by “Fe scrap” and “Al scrap” can be collected, and “Fe scrap” and Samples of “recycled raw materials other than Fe scrap and Al scrap” can be obtained without being affected by the uneven distribution of “Al scrap”, and the homogeneity of each of the three types of samples can be improved.
- the sampling method of the recycling raw material which concerns on the 2nd aspect of this invention WHEREIN:
- the process which carries out the primary crushing of the recycling raw material, and the raw material after the primary crushing are "Fe waste”, “Al waste”, “Fe waste and The step of separating into three types of “recycled raw materials other than Al waste”, the step of firstly reducing “recycled raw materials other than Fe waste and Al waste” separated after at least primary crushing, and after the primary reduction
- the “recycled raw materials other than Fe scrap and Al scrap” the step of secondary crushing more finely than the primary crushing and the secondary reduction, and the “Fe scrap”, “Al scrap” after the primary crushing
- the process of determining the weight ratio of three kinds of “recycled raw materials other than Fe scrap and Al scrap”, and the mixing ratio corresponding to the weight ratio determined in the process, the “Fe scrap” and “Al scrap”, and the 2 "Recycled raw materials other than Fe scrap and Al scrap” after the next reduction Comprising a mixing step of mixing, the
- “recycled raw materials other than Fe scrap and Al scrap” can be finely pulverized without being influenced by “Fe scrap” and “Al scrap”.
- a homogeneous sample for evaluation can be collected without being affected by the uneven distribution of “Fe scrap” and “Al scrap”.
- the sampling method of the recycling raw material which concerns on the 3rd aspect of this invention WHEREIN:
- the process which carries out the primary crushing of the recycling raw material, and the raw material after the primary crushing are "Fe waste”, “Al waste”, “Fe waste and The step of separating into three kinds of “recycled raw materials other than Al waste” and performing primary shrinkage, respectively, and the “recycled raw materials other than Fe waste and Al waste” after the primary shrinkage are finer than the primary shredding.
- a step of measuring the total weight of the recycled material later a step of measuring each weight of “Fe scrap” and “Al scrap” separated after the primary crushing, and a weight of “Fe scrap” from the total weight of the recycled material
- the weight of “Al scrap” is subtracted to calculate the weight of “recycled raw materials other than Fe scrap and Al scrap”, and the calculated results and the weights of the measured “Fe scrap” and “Al scrap” From the above, it is also preferable to perform a step of obtaining three weight ratios of “Fe scrap”, “Al scrap”, and “recycled raw materials other than Fe scrap and Al scrap”. According to this, measurement of "recycled raw materials other than Fe scrap and Al scrap" after the primary crushing can be omitted.
- the recycled material is preferably crushed to 20 mm or less. According to this, the burden of the subsequent secondary crushing can be reduced. Moreover, the homogeneity of the sample for analysis can be improved by miniaturizing the “Fe scrap” and the “Al scrap”.
- the crushing of the recycled material to 20 mm or less means that the recycled material is crushed until it has a size that can pass through a sieve having an opening of 20 mm. The same applies when crushing to a size other than 20 mm.
- the secondary crushing step it is preferable to crush “recycled raw materials other than Fe scrap and Al scrap” to 5 mm or less. According to this, the homogeneity of the sample for analysis can be improved.
- the recycling raw material sampling apparatus of the present invention includes a primary crusher for primary crushing of the recycled raw material, an Fe fractionator for separating "Fe scrap” from the raw material after the primary crushing, and after the primary crushing
- An Al separator that separates “Al scrap” from the raw materials of the above, and “recycled raw materials other than Fe scrap and Al scrap” in which “Fe scrap” and “Al scrap” are excluded by the Fe separator and Al separator Recycled raw material primary fractionator other than Fe waste and Al waste to be reduced, and "Recycled raw material other than Fe waste and Al waste” reduced by the recycled raw material primary fractionator other than Fe waste and Al waste
- a secondary crusher that performs secondary crushing more finely than the primary crusher, and a secondary crusher that secondarily crushes "recycled raw materials other than Fe scrap and Al scrap” crushed by the secondary crusher; It is characterized by having. According to this, the sampling method of the first aspect of the present invention can be realized.
- the weight ratio measuring means for measuring three weight ratios of “Fe scrap”, “Al scrap”, “recycled raw materials other than Fe scrap and Al scrap” separated from the raw material after the primary crushing, Mixing means for mixing "Fe scrap”, “Al scrap”, “recycled raw materials other than Fe scrap and Al scrap” at a predetermined mixing ratio set according to the result of the weight ratio measuring means; Is preferred. According to this, the sampling method of the second present invention can be realized.
- an Fe waste primary fractionator for primary fractionation of “Fe waste” fractionated by the Fe fractionator and an Al waste primary fractionator for primary fractionation of “Al waste” fractionated by the Al separator. It is preferable to further comprise. According to this, the sampling method of the third aspect of the present invention can be realized.
- Fe separator is a magnetic separator and the Al separator is an eddy current separator. According to this, "Fe waste” and “Al waste” can be separated from the raw material after primary crushing by electrical means.
- the analysis sample of the recycled material according to one embodiment of the present invention is characterized by being sampled by the above-described sampling method. According to this analytical sample, it is possible to accurately evaluate the recycled raw material.
- the evaluation method of the recycling raw material of one aspect of the present invention is a mixture of “Fe waste”, “Al waste” and “recycling raw material other than Fe waste and Al waste” obtained by the sampling method of the recycling raw material.
- the “recycled raw material other than Fe waste and Al waste”, which is the remaining raw material obtained by removing “Fe waste” and “Al waste” from the recycled raw material after primary crushing, is primarily reduced. After being divided, it is further shredded and then secondarily shrunk so that it is not affected by highly malleable “Fe scrap” or “Al scrap”, and “recycles other than Fe scrap and Al scrap”
- a sample obtained by pulverizing the “raw material” can be collected.
- “Fe scrap” and “Al scrap” are separately separated from the remaining “recycled raw materials other than Fe scrap and Al scrap”, they are affected by the uneven distribution of “Fe scrap” and “Al scrap”.
- a sample of “recycled raw materials other than Fe scrap and Al scrap” can be obtained. Therefore, the homogeneity can be improved for each of the three types of samples, and an accurate evaluation can be performed.
- the “raw material” can be pulverized.
- the weight ratio of the three types of “Fe waste”, “Al waste”, “recycled raw materials other than Fe waste and Al waste” in the recycled materials the “Fe waste” and “Al waste” separated earlier. Is mixed with “recycled raw materials other than Fe waste and Al waste” after secondary reduction, so that a uniform evaluation sample is collected without being affected by the uneven distribution of “Fe waste” and “Al waste”. It is possible to make an accurate evaluation.
- the raw material after the primary crushing is classified into three types of “Fe waste”, “Al waste”, and “recycled raw materials other than Fe waste and Al waste”, and each primary shrinkage. Therefore, the homogeneity can be further improved.
- the weight ratio is determined by weighing three kinds of weights of “Fe scrap”, “Al scrap”, and “recycled raw materials other than Fe scrap and Al scrap” after primary crushing. Since it is determined, the weight ratio can be easily determined.
- the primary crushing step crushes to 20 mm or less, so that the burden of the subsequent secondary crushing can be reduced. Moreover, the homogeneity of the sample for analysis can be improved by miniaturizing the “Fe scrap” and the “Al scrap”.
- the sample in the secondary crushing step, is crushed to 5 mm or less. Can increase the sex.
- the sampling method of the invention of claim 1 can be realized.
- the sampling method of the invention of claim 2 can be realized.
- the sampling method of the invention of claim 3 can be realized.
- the recycling raw material can be evaluated correctly.
- content of a valuable metal can be correctly evaluated about a recycled raw material.
- FIG. 1 is an explanatory diagram of a sampling method and apparatus according to an embodiment.
- examples of the recycled raw material processed in the sampling method and apparatus of the present embodiment include a printed board, a flexible board, an IC chip, a mobile phone, a film, and photographic paper.
- These recycled raw materials contain valuable metals such as gold, silver, and copper, and the value of the recycled raw materials themselves is determined by the content of the valuable metals.
- a sampling method and a sampling apparatus will be described with reference to FIG.
- the total weight of the recycled material is weighed by a weighing device (S1).
- a quantitative supply device for example, a vibration feeder
- the size is 20 mm or less with a primary crusher (for example, a biaxial crusher) for rough crushing.
- Primary crushing of the recycled material is performed (S3).
- Fe scrap is separated by an Fe separator (for example, a magnetic separator) (S4).
- the sorted “Fe scrap” is weighed by a weighing device (S21), and is firstly shrunk by a primary shredder (S22).
- Al waste is separated from the recycled raw material after the “Fe waste” is removed by an Al separator (for example, an eddy current separator) (S5).
- Al separator for example, an eddy current separator
- the separated “Al scrap” is weighed by a weighing device (S31), and then is firstly shrunk by a primary shredder (S32).
- “recycled raw materials other than Fe waste and Al waste” are quantitatively fed by a quantitative supply device (for example, a vibration feeder) (S6), primary reduction First, the volume is reduced to 1/10 by a divider (for example, a rotary divider) (S7).
- the “recycled raw material other than Fe scrap and Al scrap” after the primary reduction is secondary shredded to a size of 5 mm or less smaller than the primary shredder using a secondary crusher (for example, a single crusher) (S8).
- the secondary crushed material is secondarily reduced to 1/10 volume by a secondary reducer (for example, a rotary divider) while being quantitatively fed by a fixed amount supply device (for example, a vibration feeder) (S9) (S10). ).
- the total weight of the recycled material is weighed before the primary crushing, and the weights of “Fe waste” and “Al waste” separated after the primary crushing are weighed. Subtract the weight of "Fe scrap” and the weight of "Al scrap” to calculate the weight of "recycled raw materials other than Fe scrap and Al scrap", the calculation result and the "Fe scrap” weighed earlier From the respective weights of “Al waste”, three weight ratios of “Fe waste”, “Al waste”, and “recycled raw materials other than Fe waste and Al waste” are obtained (S11).
- FIG. 2 is a system diagram showing a specific configuration of the sampling apparatus according to the embodiment
- FIG. 3 is an explanatory diagram of a rotary divider used in the sampling apparatus.
- the sampling apparatus shown in FIG. 2 has a primary crusher 1 that performs primary crushing upon receipt of a recycled material M.
- the biaxial crusher used as the primary crusher 1 crushes the raw material to 20 mm or less.
- the primary crushed raw material is transported to the receiving hopper 2 by the transport conveyor 101.
- the receiving hopper 2 is also charged with a recycled material M that does not require primary crushing.
- a vibration feeder (quantitative supply device) 3 is provided at the discharge port of the receiving hopper 2, and the vibration feeder 3 supplies a raw material to the conveyer 102 in a fixed amount.
- the raw material supplied to the conveyor 102 is put into an aluminum separator (Al separator) 4 with a drum type magnetic separator (Fe separator), where “Fe scrap” A and “Al scrap” B are recycled from the raw material. Sort.
- “Recycled raw materials other than Fe waste and Al waste” C from which “Fe waste” A and “Al waste” B are removed by passing through the aluminum separator 4 with drum type magnetic separator, After passing through the vibration feeder 104A, it is put into the rotary divider 5 which is a primary reducer.
- the rotary divider 5 is provided with a rotating chute 53 having a receiving port 52 at the upper end inside the container main body 51, and by rotating the rotating chute 53 while charging the raw material, One part is reduced and discharged from the divider discharge port 55, and the rest is discharged from the unnecessary portion discharge port 56. It is to be noted that this kind of rotary is also used when the “Fe waste” A and the “Al waste” separated after the primary destruction in the S (step) 22 and S (step) 32 are primarily reduced.
- a divider 5 is used.
- the “recycled raw material other than Fe scrap and Al scrap” C which is primarily shrunk by the rotary divider 5, is supplied to the secondary crusher 6 by the conveyor 105.
- the uniaxial crusher used as the secondary crusher 6 crushes “recycled raw materials other than Fe waste and Al waste” C to 5 mm or less.
- the crushed raw material is sent to a vibratory feeder (quantitative supply device) 8 through transport conveyors 106 and 107, and is fed into a rotary divider 9 which is a secondary contractor while being quantitatively supplied.
- the “recycled raw material other than Fe scrap and Al scrap” C which has been reduced to 1/10 volume by the rotary divider 9, is stored in the drum 10.
- this sampling device is provided with a weighing device 20, and when weighing the total weight of the recycled raw material before the primary crushing, the “Fe waste” and “Al waste” separated after the primary crushing. It is used when weighing each of the above. If the total weight of the recycled material, the weight of “Fe scrap” A, and the weight of “Al scrap” B are known, the weight of “Fe scrap” A and the weight of “Al scrap” B from the total weight of the recycled material The weight of “recycled raw material other than Fe scrap and Al scrap” C can be calculated.
- the raw materials made unnecessary by the rotary dividers 5 and 9 are sent to the waste ore yard 11 by the discharge conveyors 108 and 109.
- “recycled raw material other than Fe waste and Al waste” which is the remaining raw material obtained by removing“ Fe waste ”and“ Al waste ”from the recycled raw material after primary crushing Is first shrunk, and then it is further shredded and then shrunk. For this reason, it is not affected by highly malleable “Fe scrap” or “Al scrap”, and “recycled raw materials other than Fe scrap and Al scrap” are not special shredders such as impact type crushers. For example, even when an ordinary pulverizer used when pulverizing a recycled raw material such as a uniaxial shear crusher is used, it can be finely pulverized to 5 mm or less.
- the raw material after the primary crushing is classified into three types of “Fe waste”, “Al waste”, “recycled raw materials other than Fe waste and Al waste” and primary reduction, respectively. More homogeneity can be achieved.
- the weight ratio may be obtained by weighing three kinds of weight of “Al scrap” and “Recycled raw materials other than Fe scrap and Al scrap”.
- This electronic board is an electronic board in which an IC chip, an integrated circuit, a capacitor, a heat sink, and the like are mounted on a printed board.
- each recycled raw material was crushed to 20 mm or less with a primary crusher, and then shrunk to a volume of 10% with a primary crusher, without using a magnetic separator or eddy current separator (Fe scrap and Al After separating the recycled materials with a secondary crusher so that the final crushing particle size is 10 mm or less, collect multiple (3) samples for analysis that have been crushed with a secondary crusher.
- the valuable metals Au, Ag, Cu, Pd
- a sample for analysis evaluation was collected using the recycling raw material sampling apparatus of the embodiment, and the valuable metal was analyzed and evaluated. Specifically, 0.5 to 1 ton of the same recycled material used in the comparative example was weighed and then crushed to 20 mm or less using a biaxial shear crusher (primary crusher). Thereafter, Fe scraps were removed using a drum type magnetic separator with a magnetic flux density of 0.1 T (Tesla). Further, Al scrap was removed from recycled raw materials other than Fe scrap using a 0.2 T (Tesla) magnetic rotor type eddy current separator.
- recycled raw materials other than Fe scrap and Al scrap were crushed to 5 mm or less using a uniaxial shear crusher (secondary crusher) and then shrunk using a secondary reducer.
- a plurality (three) of samples for analysis were collected by mixing at a mixing ratio calculated from the weight ratio of the original raw material, Fe scrap, and Al scrap, and valuable metals were analyzed and evaluated.
- each of the samples 1 to 5 was classified into three types of “Fe waste”, “Al waste”, and “recycled raw materials other than Fe waste and Al waste”.
- Table 1 shows the results of weighing each of the three types. Samples 1 to 5 contained 8 to 20% by weight of “Fe scrap” and “Al scrap”, respectively.
- the present invention after the primary reduction of the “recycled raw material other than Fe waste and Al waste”, which is the remaining raw material obtained by removing “Fe waste” and “Al waste” from the recycled material after primary crushing, Since it is secondarily shredded after being further finely crushed, it is possible to refine “recycled raw materials other than Fe scrap and Al scrap” without being affected by highly malleable “Fe scrap” and “Al scrap”. A ground sample can be collected.
- “Fe scrap” and “Al scrap” are separately separated from the remaining “recycled raw materials other than Fe scrap and Al scrap”, they are affected by the uneven distribution of “Fe scrap” and “Al scrap”.
- a sample of “recycled raw materials other than Fe scrap and Al scrap” can be obtained. Therefore, the homogeneity can be improved for each of the three types of samples, and an accurate evaluation can be performed. Therefore, it has industrial applicability.
- Recycled raw materials A “Fe waste” B “Al waste” C “Recycled raw materials other than Fe waste and Al waste” 1st primary crusher 4 Aluminum separator with drum type magnetic separator (Fe separator, Al separator) 5 Rotary Dividers (recycled raw material primary fractionator other than Fe scrap and Al scrap) 6, secondary crusher 9, rotary divider (secondary fractionator) 20 metering device 40 stirring and mixing device (mixing means)
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Abstract
Description
本願は、2013年4月26日に日本に出願された特願2013-094734号に基づき優先権を主張し、その内容をここに援用する。
なお、ターボミルあるいはジェットミル等のような衝撃式の粉砕機を用いれば、Fe屑やAl屑が混在している状態であっても、リサイクル原料を微粉砕することは可能である。しかし、衝撃式の粉砕機は、リサイクル原料の処理量が極めて少なく、リサイクル原料から自動的に分析用サンプルを得るためには適さない。
これによれば、「Fe屑」や「Al屑」の影響を受けずに、「Fe屑及びAl屑以外のリサイクル原料」を微粉砕することができる。また、「Fe屑」及び「Al屑」の偏在の影響を受けずに、均質な評価用サンプルを採取することができる。
これによれば、より均質性を高めることができる。
これによれば、1次破砕後の「Fe屑」、「Al屑」、「Fe屑及びAl屑以外のリサイクル原料」の3種の重量をそれぞれに計量して重量比を求めるので、簡単に重量比を割り出すことができる。
これによれば、1次破砕後の「Fe屑及びAl屑以外のリサイクル原料」の計量を省くことができる。
これによれば、後段の2次破砕の負担を軽減することができる。また、「Fe屑」及び「Al屑」の微細化により、分析用サンプルの均質性を高めることができる。
なお、本発明においてリサイクル原料を20mm以下に破砕するとは、目開きが20mmである篩を通過可能な大きさになるまでリサイクル原料を破砕することを意味する。また、20mm以外の他の大きさに破砕する場合も同様である。
これによれば、分析用サンプルの均質性を高めることができる。
これによれば、第1の本発明のサンプリング方法を実現することができる。
これによれば、第2の本発明のサンプリング方法を実現することができる。
これによれば、第3の本発明のサンプリング方法を実現することができる。
これによれば、電気的な手段により、1次破砕後の原料から「Fe屑」と「Al屑」とを分別することができる。
この分析用サンプルによれば、リサイクル原料の正確な評価を行うことができる。
これによれば、リサイクル原料における有価金属の含有量の評価を正確且つ安定して行うことができる。
請求項13に係る発明によれば、リサイクル原料について有価金属の含有量を正確に評価することができる。
図1は実施形態のサンプリング方法及び装置の説明図である。
ここで、本実施形態のサンプリング方法及び装置において処理されるリサイクル原料としては、例えば、プリント基板、フレキシブル基板、ICチップ、携帯電話、フィルム、印画紙等が挙げられる。これらのリサイクル原料は、金、銀、銅等の有価金属を含有しており、有価金属の含有量によってリサイクル原料自体の価値が決定される。
次に定量供給装置(例えば、振動フィーダ)により、リサイクル原料を定量送りしながら(S2)、粗破砕用の1次破砕機(例えば、2軸破砕機)により20mm以下の大きさになるようにリサイクル原料の1次破砕を行う(S3)。
なお、前記S(ステップ)22及びS(ステップ)32で、一次破壊された後のそれぞれ分別された「Fe屑」A及び「Al屑」を1次縮分する場合にも、この種のロータリデバイダ5が用いられる。
この確認実験では、リサイクル原料として、有価金属の品位が比較的高い電子基板5種類(試料1~5)を準備した。この電子基板は、プリント基板上にICチップ、集積回路、コンデンサー、ヒートシンク等が実装された電子基板である。
比較例として、リサイクル原料をそれぞれ1次破砕機で20mm以下に破砕した後、1次縮分機で10%の体積に縮分し、磁選機、渦電流分別機を用いずに(Fe屑及びAl屑の分別をせず)、最終破砕粒度が10mm以下になるように2次破砕機でリサイクル原料を破砕した後、2次縮分機で縮分した複数(3ヶ)の分析用サンプルを採取し、有価金属(Au、Ag、Cu、Pd)について分析評価した。
なお、標準偏差及び分析平均値とは、試料1~5それぞれについて上述の通り採取した3ヶの分析用サンプルについて算出したものである。
Claims (13)
- リサイクル原料を1次破砕する工程と、
1次破砕後の原料を、「Fe屑」、「Al屑」、「Fe屑及びAl屑以外のリサイクル原料」の3種に分別する工程と、
少なくとも1次破砕後に分別された「Fe屑及びAl屑以外のリサイクル原料」を1次縮分する工程と、
前記1次縮分後の「Fe屑及びAl屑以外のリサイクル原料」を、前記1次破砕よりも細かく2次破砕すると共に2次縮分する工程と、
を備え、
前記「Fe屑」、「Al屑」、並びに、前記2次縮分後の「Fe屑及びAl屑以外のリサイクル原料」の3種を分析用サンプルとすることを特徴とするリサイクル原料のサンプリング方法。 - リサイクル原料を1次破砕する工程と、
1次破砕後の原料を、「Fe屑」、「Al屑」、「Fe屑及びAl屑以外のリサイクル原料」の3種に分別する工程と、
少なくとも1次破砕後に分別された「Fe屑及びAl屑以外のリサイクル原料」を1次縮分する工程と、
前記1次縮分後の「Fe屑及びAl屑以外のリサイクル原料」を、前記1次破砕よりも細かく2次破砕すると共に2次縮分する工程と、
前記1次破砕後の「Fe屑」、「Al屑」、「Fe屑及びAl屑以外のリサイクル原料」の3種の重量比を求める工程と、
該工程で求めた重量比に対応した混合比で、前記「Fe屑」及び「Al屑」と、前記2次縮分後の「Fe屑及びAl屑以外のリサイクル原料」とを混合する混合工程と、
を備え、
前記混合工程で混合したものを分析用サンプルとすることを特徴とするリサイクル原料のサンプリング方法。 - リサイクル原料を1次破砕する工程と、
1次破砕後の原料を、「Fe屑」、「Al屑」、「Fe屑及びAl屑以外のリサイクル原料」の3種に分別すると共にそれぞれ1次縮分する工程と、
前記1次縮分後の「Fe屑及びAl屑以外のリサイクル原料」を、前記1次破砕よりも細かく2次破砕すると共に2次縮分する工程と、
前記1次破砕後の「Fe屑」、「Al屑」、「Fe屑及びAl屑以外のリサイクル原料」の3種の重量比を求める工程と、
該工程で求めた重量比に対応した混合比で、前記1次縮分後の「Fe屑」及び「Al屑」と、前記2次縮分後の「Fe屑及びAl屑以外のリサイクル原料」とを混合する混合工程と、
を備え、
前記混合工程で混合したものを分析用サンプルとすることを特徴とするリサイクル原料のサンプリング方法。 - 前記1次破砕後の「Fe屑」、「Al屑」、「Fe屑及びAl屑以外のリサイクル原料」の3種の重量比を求める工程では、
前記1次破砕後の「Fe屑」、「Al屑」、「Fe屑及びAl屑以外のリサイクル原料」の3種の重量をそれぞれに計量して重量比を求めることを特徴とする請求項2または3に記載のリサイクル原料のサンプリング方法。 - 前記1次破砕後の「Fe屑」、「Al屑」、「Fe屑及びAl屑以外のリサイクル原料」の3種の重量比を求める工程では、
1次破砕前または後にリサイクル原料の全重量を計量する工程と、
1次破砕後に分別した「Fe屑」、「Al屑」の各重量を計量する工程と、
前記リサイクル原料の全重量から「Fe屑」の重量と「Al屑」の重量とを引き算して、「Fe屑及びAl屑以外のリサイクル原料」の重量を算出し、その算出結果と、前記計量した「Fe屑」、「Al屑」の各重量とから、「Fe屑」、「Al屑」、「Fe屑及びAl屑以外のリサイクル原料」の3種の重量比を求める工程と、
を行うことを特徴とする請求項2または3に記載のリサイクル原料のサンプリング方法。 - 前記1次破砕の工程において、前記リサイクル原料を20mm以下に破砕することを特徴とする請求項1~5のいずれか1項に記載のリサイクル原料のサンプリング方法。
- 前記2次破砕の工程において、「Fe屑及びAl屑以外のリサイクル原料」を5mm以下に破砕することを特徴とする請求項1~6のいずれか1項に記載のリサイクル原料のサンプリング方法。
- リサイクル原料を1次破砕するための1次破砕機と、
前記1次破砕後の原料から「Fe屑」を分別するFe分別機と、
前記1次破砕後の原料から「Al屑」を分別するAl分別機と、
前記Fe分別機及びAl分別機により「Fe屑」と「Al屑」とが除外された「Fe屑及びAl屑以外のリサイクル原料」を縮分するFe屑及びAl屑以外のリサイクル原料1次縮分機と、
前記Fe屑及びAl屑以外のリサイクル原料1次縮分機で縮分された「Fe屑及びAl屑以外のリサイクル原料」を、前記1次破砕機よりも細かく2次破砕する2次破砕機と、
前記2次破砕機で破砕された「Fe屑及びAl屑以外のリサイクル原料」を2次縮分する2次縮分機と、
を有することを特徴とするリサイクル原料のサンプリング装置。 - 前記1次破砕後の原料から分別した「Fe屑」、「Al屑」、「Fe屑及びAl屑以外のリサイクル原料」の3種の重量比を測定する重量比測定手段と、
前記「Fe屑」、「Al屑」、「Fe屑及びAl屑以外のリサイクル原料」を、前記重量比測定手段の結果に応じて設定した所定の混合比で混合する混合手段と、
を更に備えることを特徴とする請求項8に記載のリサイクル原料のサンプリング装置。 - 前記Fe分別機で分別した「Fe屑」を1次縮分するFe屑1次縮分機と、
前記Al分別機で分別した「Al屑」を1次縮分するAl屑1次縮分機と、
を更に備えることを特徴とする請求項9に記載のリサイクル原料のサンプリング装置。 - 前記Fe分別機が磁選機であり、前記Al分別機が渦電流分別機であることを特徴とする請求項8~10のいずれか1項に記載のリサイクル原料のサンプリング装置。
- 請求項1~7のいずれか1項に記載のリサイクル原料のサンプリング方法によりサンプリングされたことを特徴とするリサイクル原料の分析用サンプル。
- 請求項1~7のいずれか1項に記載のリサイクル原料のサンプリング方法により得られた「Fe屑」、「Al屑」及び「Fe屑及びAl屑以外のリサイクル原料」を混合して分析用サンプルを得る工程と、
前記分析用サンプルの元素分析を行って、一定数のサンプルに対して有価金属の含有量を測定する工程と、
を有するリサイクル原料の評価方法。
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KR20140142752A (ko) | 2014-12-12 |
CA2873724C (en) | 2015-10-06 |
MX2014013974A (es) | 2015-04-28 |
IN2014DN09535A (ja) | 2015-07-17 |
MX363486B (es) | 2019-03-25 |
CA2873724A1 (en) | 2014-10-30 |
PE20150158A1 (es) | 2015-02-14 |
EP2837925B1 (en) | 2017-03-22 |
EP2837925A1 (en) | 2015-02-18 |
JP6201403B2 (ja) | 2017-09-27 |
US20150128731A1 (en) | 2015-05-14 |
KR101533210B1 (ko) | 2015-07-01 |
JP2014215256A (ja) | 2014-11-17 |
US9329105B2 (en) | 2016-05-03 |
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