JP3437803B2 - Recycling method for waste OA equipment - Google Patents
Recycling method for waste OA equipmentInfo
- Publication number
- JP3437803B2 JP3437803B2 JP23585399A JP23585399A JP3437803B2 JP 3437803 B2 JP3437803 B2 JP 3437803B2 JP 23585399 A JP23585399 A JP 23585399A JP 23585399 A JP23585399 A JP 23585399A JP 3437803 B2 JP3437803 B2 JP 3437803B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- sorting
- waste
- aluminum
- equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002699 waste material Substances 0.000 title claims description 29
- 238000000034 method Methods 0.000 title claims description 16
- 238000004064 recycling Methods 0.000 title claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 40
- 239000002184 metal Substances 0.000 claims description 40
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 30
- 229910052782 aluminium Inorganic materials 0.000 claims description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 230000004907 flux Effects 0.000 claims description 16
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 239000010935 stainless steel Substances 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 238000007885 magnetic separation Methods 0.000 claims 1
- 238000003672 processing method Methods 0.000 claims 1
- 150000002739 metals Chemical class 0.000 description 12
- 239000010970 precious metal Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 239000002918 waste heat Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009125 cardiac resynchronization therapy Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
- Combined Means For Separation Of Solids (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、家電製品やＯＡ機
器等の廃棄物から有価金属を素材別に選別して回収する
廃ＯＡ機器のリサイクル処理方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for recycling waste OA equipment for sorting valuable metals from waste such as home electric appliances and OA equipment by material.
【０００２】[0002]
【従来の技術】従来、家電製品やＯＡ機器等の廃棄物
は、そのまま埋め立てたり焼却後に埋め立てたりしてお
り、それらに含まれる有価金属はほとんど利用されてい
ないのが現状であった。ＯＡ機器については、コネクタ
に使用されている貴金属を回収することが一部で事業化
されているが、金属を素材別に回収するものではなかっ
た。2. Description of the Related Art Conventionally, waste materials such as home electric appliances and OA equipment are landfilled as they are or landfilled after incineration, and the valuable metals contained in them are hardly used. Regarding OA equipment, some companies have commercialized the collection of precious metals used in connectors, but they did not collect metals by material.
【０００３】[0003]
【発明が解決しようとする課題】２００１年に施行され
る家電リサイクル法では、家電４品目についての廃品の
リサイクルがメーカに義務付けられており、さらに、将
来にはその他の電気・電子機器類も追加される動きがあ
る。このように、家電製品やＯＡ機器のリサイクルに対
して強い要請があるが、リサイクルを効率良く行う方法
は未だ提供されていないのが現状である。よって、本発
明は、上記事情に鑑みてなされたもので、鉄、ステンレ
スおよびアルミニウムといった有価金属を選別して効率
良く回収することができる廃ＯＡ機器のリサイクル処理
方法を提供することを目的としている。[Problems to be Solved by the Invention] According to the Home Appliance Recycling Law enforced in 2001, manufacturers are obliged to recycle the waste products of four home appliances, and in the future, other electric and electronic devices will be added. There is a movement to be done. As described above, although there is a strong demand for recycling of home electric appliances and OA devices, the present situation is that a method for efficiently recycling is not yet provided. Therefore, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method for recycling waste OA equipment capable of efficiently selecting and recovering valuable metals such as iron, stainless steel, and aluminum. .
【０００４】[0004]
【課題を解決するための手段】本発明者の廃ＯＡ機器の
リサイクル処理方法は、金属を含む廃棄物を粉砕して鉄
屑とその他の屑とに選別する第１磁気選別を行い、その
他の屑の中から第１磁気選別の磁力よりも強い磁力でア
ルミニウム系金属を選別する第２磁気選別を行い、残り
の屑の中から第２磁気選別の磁力よりも強い磁力でステ
ンレス系金属を選別する第３磁気選別を行うことを特徴
としている。According to the method of recycling waste OA equipment of the present inventor, the first magnetic sorting is performed in which waste containing metal is crushed and sorted into iron scraps and other scraps. Performs a second magnetic sort that selects aluminum-based metals from the scrap with a magnetic force that is stronger than the magnetic force of the first magnetic sort, and selects stainless steel-based metals from the remaining scrap with a magnetic force that is stronger than the magnetic force of the second magnetic sort. It is characterized in that the third magnetic sorting is performed.
【０００５】上記廃ＯＡ機器のリサイクル処理方法にあ
っては、鉄屑を第１磁気選別した後に第２磁気選別を行
うことにより、アルミニウム系金属に生じた渦電流によ
る反発磁力でアルミニウム系金属が非磁性側に選別され
る。次の第３磁気選別では、より弱磁性体であるステン
レス系金属が磁性側に選別される。したがって、廃棄物
から鉄、アルミニウムおよびステンレスを選別すること
ができる。特に、本発明ではステンレス系金属よりも先
にアルミニウム系金属を選別するので、以下のような利
点を有する。すなわち、廃ＯＡ機器ではステンレス系金
属よりもアルミニウム系金属の方が圧倒的に量が多いの
で、先にアルミニウム系金属を選別することで後のステ
ンレス系金属の選別を効率良く行うことができる。ま
た、アルミニウム系金属の選別機よりもステンレス系金
属の選別機の方が高価なため、ステンレス金属の選別機
を処理量の少ない下流側に設置することで、高価な設備
を小型化して設備費用を低減することができる。In the method for recycling waste OA equipment, the iron scrap is subjected to the first magnetic sorting and then the second magnetic sorting so that the aluminum-based metal is removed by the repulsive force due to the eddy current generated in the aluminum-based metal. Sorted on the non-magnetic side. In the next third magnetic sorting, the stainless steel metal, which is a weak magnetic material, is sorted to the magnetic side. Therefore, it is possible to sort iron, aluminum and stainless steel from the waste. In particular, the present invention has the following advantages because the aluminum-based metal is selected before the stainless-based metal. That is, since the amount of aluminum-based metal is overwhelmingly larger than that of stainless-based metal in the waste OA equipment, it is possible to efficiently select the subsequent stainless-based metal by selecting the aluminum-based metal first. In addition, since stainless steel metal sorters are more expensive than aluminum metal sorters, installing a stainless metal sorter on the downstream side with a low throughput reduces the size of expensive equipment and reduces equipment costs. Can be reduced.
【０００６】ここで、第１磁気選別の磁束密度は１５０
０〜２５００ガウスで行うことが望ましい。磁束密度が
１５００ガウス未満では、鉄屑の回収効率が低下し、２
５００ガウスを超えると弱磁性のステンレス鋼が混入す
るようになる。また、第２磁気選別の磁束密度は３００
０〜５０００ガウスであることが望ましい。磁束密度が
３０００ガウス未満ではアルミニウム系金属の回収効率
が低下し、また、５０００ガウスを超えても回収効率は
さほど向上しなくなる。これと同様の理由により、第３
磁気選別の磁束密度は１２０００〜１７０００ガウスで
行うことが望ましい。なお、アルミニウム系金属に渦電
流を生じさせるためには、交番磁界を発生させる必要が
ある。したがって、第２磁気選別は渦電流選別とする。Here, the magnetic flux density of the first magnetic selection is 150.
It is desirable to perform at 0 to 2500 Gauss. If the magnetic flux density is less than 1500 gauss, the recovery efficiency of iron scrap decreases,
If it exceeds 500 Gauss, weak magnetic stainless steel will be mixed. The magnetic flux density of the second magnetic selection is 300.
It is preferably 0 to 5000 gauss. If the magnetic flux density is less than 3000 gauss, the recovery efficiency of the aluminum-based metal is lowered, and if it exceeds 5000 gauss, the recovery efficiency is not so improved. For the same reason,
The magnetic flux density for magnetic selection is preferably 12,000 to 17,000 gauss. In addition, in order to generate an eddy current in the aluminum-based metal, it is necessary to generate an alternating magnetic field. Therefore, the second magnetic sorting is eddy current sorting.
【０００７】[0007]
【発明の実施の形態】以下、本発明の好適な実施の形態
を廃ＯＡ機器のリサイクル処理方法廃ＯＡ機器の処理を
例にとって説明する。
手解体
まず、廃ＯＡ機器をディスプレイやＣＰＵなどの有価金
属多量物と、プリンタやキーボードなどの有価金属少量
物とに分別し、それぞれを手作業で解体する。そして、
本体などを構成するプラスチック（以下、ボディプラス
チックと言う）は焼却して廃熱利用し、プリント基板は
焙焼して貴金属を採取する。また、ＣＲＴなど再利用可
能な部品は専門業者に売却する。BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of the present invention will be described below by taking a method of recycling waste OA equipment as an example. Manual dismantling First, the waste OA equipment is separated into valuable metal large amounts such as displays and CPUs and valuable metal small amounts such as printers and keyboards, and each is manually disassembled. And
The plastic that composes the main body (hereinafter referred to as the body plastic) is incinerated and waste heat is used, and the printed circuit board is roasted to collect precious metals. In addition, reusable parts such as CRTs will be sold to specialized vendors.
【０００８】第１磁気選別
の工程で残ったものを３０〜５０ｍｍの大きさに粉砕
し、磁気選別機に投入する。そして、磁気選別機の磁性
側に選別される鉄屑を採取する。この第１磁気選別の磁
束密度は１５００〜２５００ガウスとする。なお、粉砕
と第１磁気選別で生じる粉塵はバグフィルターで回収
し、これを焙焼して樹脂類を焼却した後に残った貴金属
を採取する。The material remaining in the first magnetic sorting step is crushed to a size of 30 to 50 mm and put into a magnetic sorting machine. Then, the iron scraps to be sorted on the magnetic side of the magnetic sorter are collected. The magnetic flux density of the first magnetic selection is 1500 to 2500 Gauss. The dust generated by the crushing and the first magnetic sorting is collected by a bag filter, and the precious metal remaining after incineration of the resins by roasting this is collected.
【０００９】第２磁気選別
の工程で残ったものをアルミ選別機に投入し、第２磁
気選別を行う。アルミニウム系金属は非磁性であるため
磁場中に置いても磁性を帯びないが、材料を貫通する磁
束回りに渦電流が生じる。この渦電流により材料どうし
が反発し合う磁力が生じ、アルミニウム系金属はアルミ
選別機の非磁性側（アルミ側）に選別される。この第２
磁気選別の磁束密度は３０００〜５０００ガウスとす
る。What is left in the second magnetic sorting step is put into an aluminum sorter to perform the second magnetic sorting. Since aluminum-based metals are non-magnetic, they are not magnetic even when placed in a magnetic field, but eddy currents are generated around the magnetic flux penetrating the material. Due to this eddy current, a magnetic force is generated in which the materials repel each other, and the aluminum-based metal is sorted on the non-magnetic side (aluminum side) of the aluminum sorter. This second
The magnetic flux density for magnetic selection is 3000 to 5000 gauss.
【００１０】なお、第２磁気選別で使用する渦電流選別
機としては、たとえば特開平４−１２６５５７号公報に
記載されているように、円筒の中に複数の永久磁石をＳ
Ｎ極が外周側を交互に向くように配置したものを上下に
２つ対向配置し、２つの円筒中の磁石を同期回転させる
ことにより、一方の円筒のＳ極から他方の円筒のＮ極に
向かう交番磁界を生じさせるようにしたものを用いるこ
とができる。この場合、廃棄物は、下側の円筒に巻回し
たベルトによって搬送され、アルミニウム系金属に渦電
流が生じると、ベルトから弾き飛ばされるようにして分
離される。As an eddy current selector used in the second magnetic sorting, a plurality of permanent magnets are placed in a cylinder as described in, for example, Japanese Patent Laid-Open No. 4-126557.
By arranging two N poles facing each other on the outer peripheral side alternately in the vertical direction and rotating the magnets in the two cylinders synchronously, from the S pole of one cylinder to the N pole of the other cylinder. It is possible to use a device which is designed to generate an alternating alternating magnetic field. In this case, the waste is conveyed by the belt wound around the lower cylinder, and when an eddy current is generated in the aluminum-based metal, the waste is blown off from the belt and separated.
【００１１】第３磁気選別
の工程で残ったものをステンレス選別機に投入し、第
３磁気選別を行う。オーステナイト系ステンレス鋼など
のステンレス系金属は弱非磁体であるが、ステンレス選
別機の磁性側にステンレス系金属が選別される。この第
３磁気選別の磁束密度は１２０００〜１７０００ガウス
とする。What is left in the third magnetic sorting step is put into a stainless steel sorting machine to perform the third magnetic sorting. Stainless steel such as austenitic stainless steel is a weak non-magnetic material, but the stainless metal is selected on the magnetic side of the stainless sorter. The magnetic flux density of this 3rd magnetic selection shall be 12000-17000 gauss.
【００１２】慣性風力選別
の工程を経た廃棄物の中にはまだ有価金属が含まれて
いるので、さらに選別を行って回収する。まず、の工
程で残ったものを粉砕器に投入し、たとえば５ｍｍ以下
の大きさに粉砕する。これを慣性風力選別機に投入して
重量物と軽量物に分離する。慣性風力選別機は、メッシ
ュ状の板（デッキ）を傾斜させて配置し、板の坂下側に
軽量物、坂上側に重量物を分離するものである。この場
合、投入される原料に対して板の坂上側から坂下側へ向
かう横方向の風を送るとともに、板の下側からほぼ直角
に風を送り、かつ、坂下側から坂上側へ向かってやや上
方へ傾斜した角度の方向へ板を振動させる。[0012] Since valuable metals are still contained in the waste that has been subjected to the inertial wind power sorting process, it is further sorted and collected. First, what is left in the step is put into a crusher and crushed to a size of, for example, 5 mm or less. This is put into an inertial wind power sorter to separate it into heavy and light items. An inertial wind power sorter is one in which a mesh-shaped plate (deck) is arranged so as to be inclined, and a lightweight object is separated on the slope lower side of the plate and a heavy object is separated on the slope upper side. In this case, in addition to sending a lateral wind from the upper side of the plate to the lower side of the plate to the input raw material, it sends a wind at a substantially right angle from the lower side of the plate, and slightly from the lower side of the plate to the upper side of the slope. The plate is vibrated in the direction of the angle inclined upward.
【００１３】慣性風力選別では、銅線などの重量金属類
が板のメッシュの篩下に、アルミニウム等の軽量金属類
が板の坂上側に、プラスチック等の最軽量物が坂下側に
回収される。回収したアルミニウムは売却し、銅線は焙
焼して貴金属を回収する。さらに、廃プラスチックは焼
却して廃熱利用する。In the inertial wind power selection, heavy metals such as copper wire are recovered under the mesh of the plate, light metals such as aluminum are recovered on the upper side of the plate, and the lightest metals such as plastic are recovered on the lower side of the plate. . The recovered aluminum will be sold and the copper wire will be roasted to recover the precious metal. Further, the waste plastic is incinerated and used as waste heat.
【００１４】[0014]
【実施例】次に、図１および図２を参照して本発明の実
施例を詳細に説明する。図１は実施例の廃ＯＡ機器のリ
サイクル処理方法の第１磁気選別までの工程を示す図で
あり、図２は第２磁気選別からの工程を示す図である。
手解体
１０００ｋｇの廃ＯＡ機器をディスプレイやＣＰＵなど
の有価金属多量物５６５ｋｇと、プリンタやキーボード
などの有価金属少量物４３５ｋｇとに分別し、それぞれ
を手作業で解体した。その結果、有価金属少量物では、
８７ｋｇのボディプラスチックと、３４８ｋｇのその他
のものが得られた。また、有価金属多量物では、１００
ｋｇのボディプラスチック、５０ｋｇのプリント基板、
１９２ｋｇのＣＲＴ、２２３ｋｇのその他のものが得ら
れた。Embodiments of the present invention will now be described in detail with reference to FIGS. FIG. 1 is a diagram showing steps up to the first magnetic sorting of the method for recycling waste OA equipment of the embodiment, and FIG. 2 is a diagram showing steps from the second magnetic sorting. Hand dismantling 1000 kg of waste OA equipment was separated into valuable metal large amounts 565 kg such as displays and CPUs and valuable metal small amounts 435 kg such as printers and keyboards, and each was manually disassembled. As a result, in the small amount of valuable metals,
87 kg of body plastic and 348 kg of others were obtained. In addition, in the case of large amounts of valuable metals, 100
kg body plastic, 50kg printed circuit board,
192 kg of CRT, 223 kg of others were obtained.
【００１５】上記工程で得られた１８７ｋｇのボディプ
ラスチックは粗破砕した後に粉砕機に投入し、粉砕後に
粉体バーナの燃料として焼却して廃熱利用した。なお、
ボディプラスチックは、５０ｍのキルンに投入し、焼却
して廃熱利用することも可能である。さらに、プリント
基板は炉で焙焼して樹脂を焼却し、残った貴金属を製錬
所で製錬した。再利用可能なＣＲＴは専門業者に売却し
た。The 187 kg body plastic obtained in the above process was roughly crushed and then put into a crusher. After crushing, it was incinerated as a fuel for a powder burner to utilize waste heat. In addition,
It is also possible to put the body plastic in a kiln of 50 m, incinerate it and use it as waste heat. Furthermore, the printed circuit board was roasted in a furnace to incinerate the resin, and the remaining precious metal was smelted in a smelter. Reusable CRTs sold to specialist vendors.
【００１６】第１磁気選別
の工程で残ったモータ、コンデンサ、ＩＣ基板、ＬＥ
Ｄ等の電装品や金属製フレームなどのその他のものを粉
砕機（クボタ社製、１軸シュレッダーマスチフＫＲ−４
００型）に投入し、３０〜５０ｍｍの大きさに粉砕し
た。これを磁気選別機に投入して磁気選別を行った。こ
のときの磁束密度は２０００ガウスとした。これによ
り、磁気選別機の磁性側に２８０ｋｇの鉄屑を選別し売
却した。また、粉砕と第１磁気選別で生じた粉塵はバグ
フィルターで回収し、これを炉で焙焼して樹脂を焼却し
て残った貴金属を製錬所で製錬した。Motors, capacitors, IC substrates, LEs remaining in the first magnetic sorting process
Electric equipment such as D and other things such as metal frame are crushers (1 axis shredder mastiff KR-4 manufactured by Kubota).
00 type) and crushed to a size of 30 to 50 mm. This was put into a magnetic sorting machine for magnetic sorting. The magnetic flux density at this time was 2000 gauss. As a result, 280 kg of iron scraps were sorted and sold to the magnetic side of the magnetic sorter. The dust generated by the crushing and the first magnetic sorting was collected by a bag filter, roasted in a furnace to incinerate the resin, and the remaining precious metal was smelted in a smelter.
【００１７】第２磁気選別
の工程で残ったものをアルミ選別機に投入し、第２磁
気選別を行った（図２参照）。使用したアルミ選別機
は、強渦電流選別機（ジーマグ社製、ＲＬＦＲ２６５４
型）であり、磁束密度は４０００ガウスとした。これに
より、アルミ選別機の非磁性側（アルミ側）に、アルミ
ニウム、ＩＣ基板などを合計で２００ｋｇ選別した。こ
の中から１２０ｋｇのアルミニウムを手で選別し売却し
た。また、アルミニウムとともに選別されたＩＣ基板を
炉で焙焼して樹脂を焼却し、製錬所へ送る５６ｋｇの貴
金属原料を得た。What was left in the second magnetic sorting step was put into an aluminum sorter to perform the second magnetic sorting (see FIG. 2). The aluminum sorter used was a strong eddy current sorter (RLF2654 manufactured by Z-MAG Co.).
Type) and the magnetic flux density was 4000 gauss. As a result, a total of 200 kg of aluminum, IC substrates, etc. were sorted on the non-magnetic side (aluminum side) of the aluminum sorting machine. From this, 120 kg of aluminum was manually selected and sold. Further, the IC substrate selected together with aluminum was roasted in a furnace to incinerate the resin, and 56 kg of noble metal raw material to be sent to the smelter was obtained.
【００１８】第３磁気選別
の工程で残ったものをステンレス選別機に投入し、第
３磁気選別を行った。使用したステンレス選別機は、渦
電流選別機（三菱製鋼社製、６６Ａ−ＭＳ０３４５Ｔ
型）であり、磁束密度は１４０００ガウスとした。これ
により、ステンレス選別機の磁性側に、ステンレス鋼、
ＩＣ基板などを合計で９１ｋｇ選別した。この中から７
ｋｇのステンレス鋼を手で選別し売却した。また、ステ
ンレス鋼とともに選別されたＩＣ基板を炉で焙焼して樹
脂を焼却し、製錬所へ送る１．４ｋｇの貴金属原料を得
た。The material remaining in the third magnetic sorting step was put into a stainless steel sorter to perform the third magnetic sorting. The stainless steel sorter used was an eddy current sorter (66A-MS0345T, manufactured by Mitsubishi Steel Corporation).
Type) and the magnetic flux density was 14,000 gauss. As a result, stainless steel,
A total of 91 kg of IC substrates and the like were selected. 7 out of this
kg stainless steel was manually sorted and sold. Further, the IC substrate selected together with the stainless steel was roasted in a furnace to incinerate the resin, and 1.4 kg of noble metal raw material to be sent to the smelter was obtained.
【００１９】慣性風力選別
の工程で残ったもの８２ｋｇを粉砕機で５ｍｍ以下の
大きさに粉砕し、これを慣性風力選別機に投入してさら
に選別を行った。使用した慣性風力選別機は、原田産業
社製のＳＨ型慣性選別機であり、運転条件は、風量：６
〜１５ｍ３／ｍｉｎ、廃棄物供給量：０．７〜０．８ｋ
ｇ／ｍｉｎ、デッキ振動数：６３．６Ｈｚ、デッキメッ
シュ径：３ｍｍとした。この慣性風力選別で生じた粉塵
はバグフィルターで回収し、これを炉で焙焼して樹脂を
焼却した。そして、製錬所へ送る３．９ｋｇの貴金属原
料を得た。82 kg remaining in the step of selecting the inertial wind power was crushed into a size of 5 mm or less by a crusher, and this was put into the inertial wind power selector for further selection. The inertial wind power sorter used was an SH type inertial sorter manufactured by Harada Sangyo Co., Ltd., and the operating conditions were air volume: 6
~15m 3 / min, the waste feed amount: 0.7~0.8k
g / min, deck frequency: 63.6 Hz, deck mesh diameter: 3 mm. The dust generated by this inertial wind power screening was collected by a bag filter and was roasted in a furnace to incinerate the resin. Then, 3.9 kg of precious metal raw material to be sent to the smelter was obtained.
【００２０】慣性風力選別により重量物側に１６．４ｋ
ｇのアルミニウムを選別して売却した。また、デッキの
篩下に選別した銅線類を炉で焙焼し、製錬所へ送る５．
６ｋｇの貴金属原料を得た。さらに、軽量物側に５２ｋ
ｇのプラスチックを選別し、これを５０ｍのキルンで焼
却して廃熱利用した。16.4k on the weight side by inertial wind power sorting
g of aluminum was selected and sold. Also, the copper wires selected under the screen of the deck are roasted in a furnace and sent to the smelter.
6 kg of precious metal raw material was obtained. Furthermore, 52k on the lightweight side
g of plastic was selected and incinerated in a kiln of 50 m to utilize waste heat.
【００２１】[0021]
【発明の効果】以上説明したように本発明の廃ＯＡ機器
のリサイクル処理方法によれば、鉄屑とその他の屑とに
選別する第１磁気選別を行い、その他の屑の中から磁気
選別の磁力よりも強い磁力でアルミニウム系金属を選別
する第２磁気選別を行い、残りの屑の中から第２磁気選
別の磁力よりも強い磁力でステンレス系金属を選別する
第３磁気選別を行うから、鉄、アルミニウム、ステンレ
スを効率よく回収することができ、廃棄物を有効に利用
することができる。As described above, according to the recycling method for waste OA equipment of the present invention, the first magnetic sorting for sorting into iron scraps and other scraps is performed, and the magnetic sorting is performed from the other scraps. The second magnetic sorting is performed to sort the aluminum-based metal with a magnetic force stronger than the magnetic force, and the third magnetic sorting is performed to select the stainless-based metal with a magnetic force stronger than the magnetic force of the second magnetic sorting from the remaining scrap, Iron, aluminum, and stainless steel can be efficiently recovered, and waste can be effectively used.
【図１】 本発明の実施例の工程の前半を示す図であ
る。FIG. 1 is a diagram showing a first half of a process of an example of the present invention.
【図２】 本発明の実施例の工程の後半を示す図であ
る。FIG. 2 is a diagram showing the latter half of the steps of the example of the present invention.
フロントページの続き (56)参考文献 特開 平６−226242（ＪＰ，Ａ) 特開 昭59−217410（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B03C 1/00 - 1/32 B07B 1/00 - 15/00 B09B 5/00 Continuation of front page (56) Reference JP-A-6-226242 (JP, A) JP-A-59-217410 (JP, A) (58) Fields investigated (Int.Cl. 7 , DB name) B03C 1 / 00-1/32 B07B 1/00-15/00 B09B 5/00
Claims (4)
他の屑とに選別する第１磁気選別を行い、その他の屑の
中から上記磁気選別の磁力よりも強い磁力でアルミニウ
ム系金属を選別する第２磁気選別を行い、残りの屑の中
から上記第２磁気選別の磁力よりも強い磁力でステンレ
ス系金属を選別する第３磁気選別を行うことを特徴とす
る廃ＯＡ機器のリサイクル処理方法。1. A first magnetic sorting for crushing a metal-containing waste into iron scraps and other scraps, and the aluminum-based metal having a magnetic force stronger than the magnetic force of the magnetic separation among the other scraps. The second magnetic sorting for sorting, and the third magnetic sorting for sorting stainless steel metal with a magnetic force stronger than the magnetic force of the second magnetic sorting out of the remaining scraps for recycling the waste OA equipment. Processing method.
〜２５００ガウス、前記第２磁気選別の磁束密度を３０
００〜５０００ガウス、前記第３磁気選別の磁束密度を
１２０００〜１７０００ガウスで行うことを特徴とする
請求項１に記載の廃ＯＡ機器のリサイクル処理方法。2. The magnetic flux density of the first magnetic selection is 1500.
~ 2500 Gauss, the magnetic flux density of the second magnetic selection is 30
The method of recycling waste OA equipment according to claim 1, wherein the magnetic flux density of the third magnetic selection is from 02000 to 5000 gauss and the magnetic flux density of the third magnetic screening is from 12000 to 17000 gauss.
とを特徴とする請求項１または２に記載の廃ＯＡ機器の
リサイクル処理方法。3. The recycling method for waste OA equipment according to claim 1, wherein the second magnetic sorting is eddy current sorting.
風力選別を行って銅系金属を含む屑を選別することを特
徴とする請求項１〜３のいずれかに記載の廃ＯＡ機器の
リサイクル処理方法。4. The waste OA according to claim 1, wherein the waste after the third magnetic sorting is subjected to inertial wind power sorting to sort the waste containing a copper-based metal. Equipment recycling method.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23585399A JP3437803B2 (en) | 1999-08-23 | 1999-08-23 | Recycling method for waste OA equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23585399A JP3437803B2 (en) | 1999-08-23 | 1999-08-23 | Recycling method for waste OA equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001058138A JP2001058138A (en) | 2001-03-06 |
| JP3437803B2 true JP3437803B2 (en) | 2003-08-18 |
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ID=16992233
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|---|---|---|---|
| JP23585399A Expired - Lifetime JP3437803B2 (en) | 1999-08-23 | 1999-08-23 | Recycling method for waste OA equipment |
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| JP6469362B2 (en) * | 2014-05-14 | 2019-02-13 | 松田産業株式会社 | Method for recovering valuable materials from lithium ion secondary batteries |
| JP6912234B2 (en) * | 2017-03-28 | 2021-08-04 | 太平洋セメント株式会社 | Valuable metal recovery method |
| CN106984421A (en) * | 2017-05-31 | 2017-07-28 | 中国葛洲坝集团绿园科技有限公司 | A kind of solid waste sorting system and method for separating |
| JP2019025395A (en) * | 2017-07-27 | 2019-02-21 | 太平洋セメント株式会社 | Valuable metal recovery method and recovery system |
| EP3766994A4 (en) * | 2018-03-16 | 2022-02-09 | JX Nippon Mining & Metals Corporation | Method for processing electronic and electrical device component scrap |
| JP6914220B2 (en) * | 2018-03-16 | 2021-08-04 | Ｊｘ金属株式会社 | How to dispose of scraps of electronic and electrical equipment parts |
| JP2021133346A (en) * | 2020-02-28 | 2021-09-13 | 太平洋セメント株式会社 | Chromium reduction method for mix metal |
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1999
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