JPH0639310A - Device for recovering metal - Google Patents
Device for recovering metalInfo
- Publication number
- JPH0639310A JPH0639310A JP4198884A JP19888492A JPH0639310A JP H0639310 A JPH0639310 A JP H0639310A JP 4198884 A JP4198884 A JP 4198884A JP 19888492 A JP19888492 A JP 19888492A JP H0639310 A JPH0639310 A JP H0639310A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- crushed
- tank
- molten zinc
- metals
- 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.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 55
- 239000002184 metal Substances 0.000 title claims abstract description 55
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 43
- 239000011701 zinc Substances 0.000 claims abstract description 43
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052802 copper Inorganic materials 0.000 claims abstract description 28
- 239000010949 copper Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims description 16
- 238000011084 recovery Methods 0.000 claims description 8
- 150000002739 metals Chemical class 0.000 abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 description 18
- 239000010814 metallic waste Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、自動車、家庭電化製品
などの廃棄物から金属を回収する装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for recovering metal from waste such as automobiles and household appliances.
【０００２】[0002]
【従来の技術】一般に、自動車、家庭電化製品などの廃
棄物から金属（有益な金属、有価金属ともいう）を分離
して回収する場合、廃棄物をシュレッダーにより破砕
し、この破砕物から、重液選別、風力選別、磁気選別な
どにより、金属を分離するとともにその回収が行われて
いた。2. Description of the Related Art Generally, when separating metal (also referred to as useful metal or valuable metal) from waste such as automobiles and household appliances, the waste is crushed by a shredder and the crushed material is crushed. Metals were separated and recovered by liquid sorting, wind sorting, magnetic sorting, etc.
【０００３】しかし、重液選別においては、比重の小さ
い軽金属しか分離することができず、また風力選別にお
いては、破砕物の比重および形状によって制約があり、
さらに磁気選別においては、ステンレス鋼や非鉄金属な
どを分離することができないという欠点があった。However, in heavy liquid sorting, only light metals having a small specific gravity can be separated, and in wind sorting, there are restrictions due to the specific gravity and shape of the crushed material.
Further, in magnetic sorting, there is a drawback that stainless steel and non-ferrous metals cannot be separated.
【０００４】このような欠点を解消する装置として、最
近、熱重力分級法（ＴＧＣ法）を使用したものが提案さ
れている。この熱重力分級法を使用した装置は、浴槽内
に比重の大きい溶融鉛を下層に置くとともに、これより
比重の小さい溶融亜鉛を上層に置き、破砕物とこれらの
溶融金属との比重差および融点の差を利用して、一回で
鉄および非鉄に拘らず、軽金属と重金属とを分離するも
のであり、またその回収については、溶融金属中に配置
された回転スクリュウにより行われていた。As a device for solving such a defect, a device using a thermal gravity classification method (TGC method) has recently been proposed. The equipment using this thermal gravity classification method places molten lead with a large specific gravity in the lower layer in the bath and molten zinc with a smaller specific gravity in the upper layer, and the difference in specific gravity between the crushed material and these molten metals and the melting point. By utilizing the difference of No. 1, light metal and heavy metal are separated at once regardless of iron and non-ferrous, and the recovery thereof has been performed by a rotary screw arranged in the molten metal.
【０００５】[0005]
【発明が解決しようとする課題】しかし、上記の熱重力
分級法を使用した金属の回収装置の構成によると、上層
の溶融亜鉛は、破砕物に含まれる銅と反応し、沈降した
銅金属の重量が減少してしまい、本来の目的である銅の
回収を充分に行うことができないという問題があり、ま
た下層に溶融鉛を使用しているため、その比重の大きさ
から、浴層の底部を強固にする必要があり、したがって
装置の大型化ひいては設備コストの上昇につながるとい
う問題があった。However, according to the configuration of the metal recovery apparatus using the above-mentioned thermal gravity classification method, the molten zinc in the upper layer reacts with the copper contained in the crushed material and the precipitated copper metal is removed. There is a problem that the weight is reduced, and it is not possible to sufficiently recover copper, which is the original purpose, and since molten lead is used in the lower layer, the specific gravity of the lead causes the bottom of the bath layer to be Therefore, there is a problem in that the size of the device must be increased and the equipment cost must be increased.
【０００６】そこで、本発明は上記問題を解消し得る金
属の回収装置を提供することを目的とする。Therefore, an object of the present invention is to provide a metal recovery device which can solve the above problems.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するた
め、本発明の金属の回収装置は、金属破砕物が投入され
る槽内に、３〜１０重量％の割合で銅を含む溶融亜鉛を
入れるとともに、この溶融亜鉛の表面近傍に浮遊する金
属破砕物および槽の底部に沈降する金属破砕物を、掬い
揚げて槽外に搬出する搬出装置を設けたものである。In order to solve the above-mentioned problems, a metal recovery apparatus of the present invention comprises a molten zinc containing copper at a ratio of 3 to 10% by weight in a tank into which a crushed metal is put. A carrying-out device for scooping up the metal crushed material floating near the surface of the molten zinc and the metal crushed material settling at the bottom of the tank and carrying it out of the tank is provided.
【０００８】[0008]
【作用】上記の構成によると、亜鉛よりも比重が小さい
金属破砕物が槽内に投入されると、溶融亜鉛の表面近傍
に浮遊し、また亜鉛よりも比重が大きい金属破砕物が槽
内に投入されると、溶融亜鉛内に沈むが、これらの金属
破砕物はそれぞれ搬出装置により掬い揚げられて、槽外
に搬出される。According to the above construction, when a metal crushed material having a smaller specific gravity than zinc is introduced into the tank, it floats near the surface of the molten zinc, and a metal crushed material having a larger specific gravity than zinc enters the tank. When charged, it sinks in the molten zinc, but these metal crushed materials are scooped up by a carry-out device and carried out of the tank.
【０００９】ところで、金属破砕物が銅金属である場合
には、最初から溶融亜鉛中に銅が混入されているため、
投入された銅金属と亜鉛とが殆ど反応しないので、銅金
属の減少が防止される。By the way, when the crushed metal is copper metal, since copper is mixed in molten zinc from the beginning,
Since the introduced copper metal and zinc hardly react, the reduction of copper metal is prevented.
【００１０】[0010]
【実施例】以下、本発明の一実施例を図１および図２に
基づき説明する。図１において、１は金属破砕物Ｂが投
入される浴槽で、その上壁部である蓋体２には金属破砕
物の投入用ホッパー３が取り付けられており、またその
内部には、３〜１０重量％の割合で銅を含む溶融亜鉛Ａ
が所定量入れられており、さらに浴槽内の溶融亜鉛Ａを
加熱して温度の制御を行うための加熱装置、例えばヒー
タ（バーナなどでもよい）４が設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, 1 is a bathtub into which the metal crushed material B is charged, a lid 2 which is an upper wall portion thereof is provided with a hopper 3 for charging the metal crushed material, and 3 to 3 are provided inside. Molten zinc A containing copper in a proportion of 10% by weight
Is provided in a predetermined amount, and a heating device for heating the molten zinc A in the bath to control the temperature, for example, a heater (or a burner or the like) 4 is provided.
【００１１】そして、上記浴槽１内には、溶融亜鉛Ａの
表面近傍に浮遊する金属廃棄物Ｂおよび浴槽１内の底部
に沈降する金属廃棄物Ｂをそれぞれ外部に搬出するため
のバケット式の第１および第２搬出装置１１，１２が配
設されている。In the bath 1, a metal waste B floating near the surface of the molten zinc A and a metal waste B settling at the bottom of the bath 1 are carried out to the outside by a bucket type. The 1st and 2nd carrying-out apparatuses 11 and 12 are arrange | positioned.
【００１２】これらの搬出装置１１，１２は、駆動側ス
プロケット１３，１４および従動側スプロケット１５，
１６に無端状に巻回されるとともに網状部材（例えば、
金網など）で構成されたベルト１７，１８と、このベル
ト１７，１８に所定間隔置きに複数個取り付けられた網
状部材（例えば、金網など）により構成されて浮遊する
金属破砕物Ｂを掬い揚げるためのバケット（図示せず）
と、上記駆動側スプロケット１３，１４を回転させる電
動機（図示せず）とから構成されている。These carry-out devices 11 and 12 include a drive side sprocket 13 and 14 and a driven side sprocket 15,
16 and the mesh member (for example,
To scoop up the suspended metal crushed object B, which is composed of belts 17 and 18 made of wire mesh and a plurality of mesh members (for example, wire mesh) attached to the belts 17 and 18 at predetermined intervals. Bucket (not shown)
And an electric motor (not shown) for rotating the drive side sprockets 13 and 14.
【００１３】上記第１搬出装置１１は、溶融亜鉛Ａの表
面近傍に浮遊する金属破砕物Ｂを回収して搬出するため
のもので、直線状にかつ傾斜して配置されている。ま
た、第２搬出装置１２は、浴槽１内の底部に沈降する金
属破砕物Ｂを回収して搬出するためのもので、下側水平
部１２ａと上側傾斜部１２ｂとからなる折曲形状に構成
されている。The first unloading device 11 is for collecting and carrying out the crushed metal B floating in the vicinity of the surface of the molten zinc A, and is arranged linearly and inclined. The second unloading device 12 is for collecting and carrying out the crushed metal B that settles to the bottom of the bath 1, and is configured in a bent shape including a lower horizontal portion 12a and an upper inclined portion 12b. Has been done.
【００１４】したがって、第１搬出装置１１のベルト１
７の下端側位置は、溶融亜鉛Ａの表面より少し下方に位
置されており、また第２搬出装置１２は、その下側水平
部１２ａが浴槽１内の底部に配置されるように設けられ
る。Therefore, the belt 1 of the first unloading device 11
The lower end side position of 7 is located slightly below the surface of the molten zinc A, and the second unloading device 12 is provided such that its lower horizontal part 12a is located at the bottom of the bath 1.
【００１５】また、上記浴槽１の外周部に設けられた各
排出口２１，２２の下方には、この排出口２１，２２か
ら落下される金属破砕物Ｂを、回収容器２３，２４に導
くためのシュート２５，２６がそれぞれ配置されてい
る。Below the discharge ports 21 and 22 provided on the outer periphery of the bath 1, in order to guide the crushed metal B dropped from the discharge ports 21 and 22 to the recovery containers 23 and 24. Shoots 25 and 26 are arranged respectively.
【００１６】なお、第１搬出装置１１の下方には、第１
搬出装置１１から落下した金属破砕物Ｂを、第２搬出装
置１２上に導くガイド板３１が設けられている。上記構
成において、例えばシュレッダーにより破砕された金属
破砕物Ｂは、投入ホッパー３を介して浴槽１内に投入さ
れると、上記の割合で銅を含む溶融亜鉛Ａの比重は、約
７．２であり、投入された金属廃棄物Ｂの比重がこれよ
りも小さい場合、例えばアルミニュウムなどの場合に
は、溶融亜鉛Ａの表面に浮遊し、また投入された金属廃
棄物Ｂの比重が溶融亜鉛Ａの比重よりも大きい場合に
は、溶融亜鉛Ａ内を沈降する。Below the first unloading device 11, the first
A guide plate 31 for guiding the crushed metal B dropped from the carry-out device 11 onto the second carry-out device 12 is provided. In the above structure, when the metal crushed material B crushed by a shredder is charged into the bath 1 through the charging hopper 3, the specific gravity of the molten zinc A containing copper at the above ratio is about 7.2. If the specific gravity of the charged metal waste B is smaller than this, for example, in the case of aluminum, the specific gravity of the charged metal waste B floats on the surface of the molten zinc A, and the specific gravity of the charged metal waste B is higher than that of the molten zinc A. When the specific gravity is larger than the specific gravity, the molten zinc A is settled.
【００１７】そして、上記溶融亜鉛Ａの表面に浮遊する
金属破砕物Ｂは、第１搬出装置１１のベルト１７に取り
付けられたバケットにより掬い揚げられて、排出口２１
から、シュート２５を介して回収容器２３に導かれる。
また、沈降する金属廃棄物Ｂは、第２搬出装置１２の下
側水平部１２ａのベルト１８上に落下するとともに移動
するバケットにより掬い揚げられて、上記同様に、排出
口２２から、シュート２６介して回収容器２４に導かれ
る。The crushed metal B floating on the surface of the molten zinc A is scooped up by the bucket attached to the belt 17 of the first unloading device 11, and the discharge port 21 is discharged.
Is guided to the recovery container 23 via the chute 25.
Further, the settled metal waste B is scooped by a bucket that moves while falling onto the belt 18 of the lower horizontal portion 12a of the second unloading device 12, and from the discharge port 22 through the chute 26 in the same manner as above. And is guided to the collection container 24.
【００１８】このように、溶融亜鉛中に、予め銅を所定
量混入しているため、金属廃棄物が銅である場合でも、
殆ど亜鉛と反応しないので、回収した銅金属の量が減少
するのを防止することができる。As described above, since a predetermined amount of copper is mixed in the molten zinc in advance, even when the metal waste is copper,
Since it hardly reacts with zinc, it is possible to prevent the amount of recovered copper metal from decreasing.
【００１９】ところで、上記溶融亜鉛中に含まれる銅
を、３〜１０重量％（以下、単に％という）としたの
は、［表１］の実験結果から明らかなように、銅の含有
量が３％より少ないと、回収する銅金属と溶融亜鉛とが
反応してしまい、また１０％を越えると、溶融温度を６
０℃以上にする必要が生じ、金属廃棄物がアルミニュウ
ムである場合、溶融して回収不能になるとともに、経済
性の点で問題が生じる。By the way, the reason why the copper contained in the molten zinc is set to 3 to 10% by weight (hereinafter simply referred to as "%") is that the copper content is If it is less than 3%, the recovered copper metal reacts with molten zinc, and if it exceeds 10%, the melting temperature is 6%.
When it becomes necessary to set the temperature to 0 ° C. or higher, and when the metal waste is aluminum, it is melted and cannot be recovered, and there is a problem in economical efficiency.
【００２０】[0020]
【表１】 なお、溶融亜鉛だけの場合と、溶融亜鉛に銅を３％含有
させた場合とにおける、浸漬時間と銅金属（銅板）の浸
食量との関係を図２のグラフに示す。[Table 1] The graph of FIG. 2 shows the relationship between the immersion time and the amount of corrosion of the copper metal (copper plate) in the case of only molten zinc and the case of containing 3% of copper in molten zinc.
【００２１】図２中、□は溶融亜鉛だけの場合でかつ温
度が450 ℃の場合を示し、◇は溶融亜鉛だけの場合でか
つ温度が475 ℃の場合を示し、＋は溶融亜鉛に３％の銅
を含有させた場合でかつ温度が450 ℃の場合を示し、△
は溶融亜鉛に３％の銅を含有させた場合でかつ温度が47
5 ℃の場合を示している。In FIG. 2, □ shows the case where only the molten zinc is used and the temperature is 450 ° C., ◇ shows the case where only the molten zinc is used and the temperature is 475 ° C., and + is 3% of the molten zinc. When copper is included and the temperature is 450 ℃,
Is when the molten zinc contains 3% copper and the temperature is 47
It shows the case of 5 ℃.
【００２２】また、金属破砕物に含まれている亜鉛が溶
融することにより、溶融亜鉛Ａの銅の濃度が低下する
が、この場合、溶融亜鉛を再溶解材料として利用し易い
という利点がある。Further, the melting of zinc contained in the metal crushed product lowers the concentration of copper in the molten zinc A, but in this case, there is an advantage that molten zinc can be easily used as a remelting material.
【００２３】なお、網状部材のメッシュの開口径を変更
することにより、回収する金属破砕物Ｂの大きさを選択
することができる。The size of the metal crushed material B to be recovered can be selected by changing the opening diameter of the mesh of the mesh member.
【００２４】[0024]
【発明の効果】以上のように本発明の構成によると、金
属破砕物を分離するための溶融金属として、銅が所定量
混入された溶融亜鉛を使用したので、金属破砕物が銅で
ある場合でも、亜鉛との反応による重量の減少を防止す
ることができるとともに、従来のように、比重の大きい
鉛を使用しないので、槽自体の構造を簡単にすることが
でき、したがって設備コストの低減化を図ることができ
る。As described above, according to the constitution of the present invention, since molten zinc containing a predetermined amount of copper is used as the molten metal for separating the crushed metal, when the crushed metal is copper However, it is possible to prevent the weight loss due to the reaction with zinc and to simplify the structure of the tank itself because it does not use lead, which has a large specific gravity as in the past, thus reducing the equipment cost. Can be achieved.
【図１】本発明の一実施例における回収装置の概略構成
を示す側面図である。FIG. 1 is a side view showing a schematic configuration of a recovery device according to an embodiment of the present invention.
【図２】溶融亜鉛中における銅の浸食量を示すグラフで
ある。FIG. 2 is a graph showing the amount of copper erosion in molten zinc.
Ａ 溶融亜鉛 Ｂ 金属破砕物 １ 浴槽 ４ ヒータ １１ 第１搬出装置 １２ 第２搬出装置 A molten zinc B crushed metal 1 bath 4 heater 11 first unloading device 12 second unloading device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小竹 誠一 大阪府大阪市此花区西九条５丁目３番28号 日立造船株式会社内 (72)発明者 角谷 茂 大阪府大阪市此花区西九条５丁目３番28号 日立造船株式会社内 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Seiichi Kotake, 5-3 28 Nishikujo, Konohana-ku, Osaka City, Osaka Prefecture Hitachi Shipbuilding Co., Ltd. (72) Inventor Shigeru Sumiya 5-5, Nishikujo, Konohana-ku, Osaka No. 28 in Hitachi Shipbuilding Co., Ltd.
Claims (1)
重量％の割合で銅を含む溶融亜鉛を入れるとともに、こ
の溶融亜鉛の表面近傍に浮遊する金属破砕物および槽の
底部に沈降する金属破砕物を、掬い揚げて槽外に搬出す
る搬出装置を設けたことを特徴とする金属の回収装置。1. In a tank in which a crushed metal is put, 3 to 10
In addition to the molten zinc containing copper in a weight% ratio, a unloading device is provided to scoop up the metal crushed material floating near the surface of this molten zinc and the metal crushed material settling at the bottom of the tank and carry it out of the tank. A metal recovery device characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4198884A JPH0639310A (en) | 1992-07-27 | 1992-07-27 | Device for recovering metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4198884A JPH0639310A (en) | 1992-07-27 | 1992-07-27 | Device for recovering metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0639310A true JPH0639310A (en) | 1994-02-15 |
Family
ID=16398536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4198884A Pending JPH0639310A (en) | 1992-07-27 | 1992-07-27 | Device for recovering metal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0639310A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5655663A (en) * | 1995-07-03 | 1997-08-12 | Spradlin; Lyndon D. | Self-separating flatware and method for sorting same |
| US5931307A (en) * | 1995-07-03 | 1999-08-03 | Spradlin; Lyndon D. | Self separating flatware and method for sorting same |
| CN114939475A (en) * | 2022-05-19 | 2022-08-26 | 华侨大学 | High-efficient dry-type of scraped car selects separately smart machine based on granular media |
-
1992
- 1992-07-27 JP JP4198884A patent/JPH0639310A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5655663A (en) * | 1995-07-03 | 1997-08-12 | Spradlin; Lyndon D. | Self-separating flatware and method for sorting same |
| US5931307A (en) * | 1995-07-03 | 1999-08-03 | Spradlin; Lyndon D. | Self separating flatware and method for sorting same |
| CN114939475A (en) * | 2022-05-19 | 2022-08-26 | 华侨大学 | High-efficient dry-type of scraped car selects separately smart machine based on granular media |
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