JP2001017927A - Method of gravity separation by horizontal turning motion and device therefor - Google Patents
Method of gravity separation by horizontal turning motion and device thereforInfo
- Publication number
- JP2001017927A JP2001017927A JP11192342A JP19234299A JP2001017927A JP 2001017927 A JP2001017927 A JP 2001017927A JP 11192342 A JP11192342 A JP 11192342A JP 19234299 A JP19234299 A JP 19234299A JP 2001017927 A JP2001017927 A JP 2001017927A
- Authority
- JP
- Japan
- Prior art keywords
- substance
- specific gravity
- separated
- separation medium
- separation
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、比較的小粒径から
なる異種混合粉体を分離対象物として、これを固体分離
媒体を使用して比重差による偏析分離現象により分離す
る方法及び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for separating a heterogeneous mixed powder having a relatively small particle size as an object to be separated by a segregation separation phenomenon caused by a specific gravity difference using a solid separation medium. .
【０００２】[0002]
【従来の技術】従来の固体廃棄物の選別に用いられてい
る比重差分離法は、重液分離、ジグ（Ｊｉｇ）、振動テ
ーブル、ハンフレイスパイラルなどであり、これらの選
別の分離装置では、分離対象物の密度と同程度の液体を
分離媒体として用いている。これらの方法はいずれも液
体中での分離操作であることから、重液の選定や分離後
の試料の乾燥および廃液体の処理工程が必要であり、工
程的に不経済であり、また環境に対する負荷という観点
からみて問題がある。また、乾式比重差選別としては、
特開平１−２８４３４６号公報に、分離媒体として酸化
アルミニウム（比重３．３〜４）やざくろ石（３．２〜
４．３）などの微粉体を使用し、この微粉に振動を与え
て非液体性流体で、鉄クズ（比重８）と乾電池（比重２
〜３）の混合物を分離回収する乾式比重差選別装置が開
示されている。この方法は、分離媒体として微粉体を使
用する非常に粒径の大きい物質を分離対象物とした乾式
比重差選別装置である。しかしながら、これらの従来技
術は、分離媒体として大部分液体を用いられているもの
であるため、重液選定や分離後の試料乾燥および廃液処
理などの問題がある。また、特開平１−２８４３４６号
公報には、分離媒体として固体微粉体を使用している
が、この方法は非常に大きい粒径の物質を分離対象物と
しているため、直径２ｍｍ以下のごとき小粒径の異種混
合粉体の場合は、粒度効果のため分離が困難である。2. Description of the Related Art Conventionally, specific gravity difference separation methods used for sorting solid waste include heavy liquid separation, jigs, vibrating tables, and Han-Fray spirals. A liquid having the same density as that of the object to be separated is used as a separation medium. Since all of these methods are separation operations in liquid, selection of heavy liquid, drying of sample after separation and treatment of waste liquid are necessary, which is uneconomical in terms of process, and is environmentally friendly. There is a problem from the viewpoint of load. In addition, as dry type specific gravity difference sorting,
Japanese Patent Application Laid-Open No. 1-284346 discloses aluminum oxide (specific gravity: 3.3 to 4) and garnet (3.2 to 2.0) as a separation medium.
4.3) Fine powder such as is used, and the fine powder is vibrated to give a non-liquid fluid, and iron scraps (specific gravity 8) and a dry battery (specific gravity 2
A dry specific gravity difference sorter that separates and recovers the mixture of (3) to (3) is disclosed. This method is a dry-type gravity-difference-selecting apparatus in which a substance having a very large particle size using a fine powder as a separation medium is used as an object to be separated. However, since these conventional techniques mostly use a liquid as a separation medium, there are problems such as selection of a heavy liquid, sample drying after separation, and waste liquid treatment. In Japanese Patent Application Laid-Open No. 1-284346, solid fine powder is used as a separation medium. However, since this method uses a substance having a very large particle size as an object to be separated, small particles having a diameter of 2 mm or less are used. In the case of mixed powders having different diameters, separation is difficult due to the particle size effect.
【０００３】[0003]
【発明が解決しようとする課題】そこで、本発明は、例
えば直径２ｍｍ以下程度の小粒径の異種混合粉体を分離
する場合、かかる問題点を解決するためになされたもの
で、分離媒体として分離対象物の粒径より少し大きい或
いは小さい固体ビーズを使用し、分離対象物と分離媒体
で満たされた円筒分離槽を水平旋回振動させて分離対象
物を軽物質と重物質で分離する方法と装置を提供するこ
とを目的とする。SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve such a problem when a heterogeneous mixed powder having a small particle diameter of, for example, about 2 mm or less is separated. A method of using solid beads slightly larger or smaller than the particle size of the object to be separated, and horizontally rotating and oscillating the cylindrical separation tank filled with the object to be separated and the separation medium to separate the object to be separated into light and heavy substances; and It is intended to provide a device.
【０００４】[0004]
【課題を解決するための手段】本発明は、かかる課題を
解決するためになされたものである。すなわち、請求項
１の発明は、比較的小粒径からなる分離対象物の比重偏
析分離方法であって、 分離対象物を、各粒径のグループＩ、II、III、・・
・に篩い分けし、各粒径グループＩ、II、III、・・・
の分離対象物が、それぞれ比重の小さい軽物質と比重の
大きい重物質から構成されるようにする工程、 各粒径グループＩ、II、III、・・・ごとに、その分
離対象物の粒径より少し大きいか又は少し小さい粒径で
あって、かつ、比重が当該軽物質と重物質の中間の値の
固体分離媒体を混合する工程、及び 当該固体分離媒体の存在下に水平旋回振動を印加し、
当該軽物質と重物質を当該分離媒体を挟んでその上下に
分離する工程とからなることを特徴とする水平旋回振動
による比重偏析分離方法、を提供する。 請求項２の発明は、請求項１において、分離した軽物質
と重物質を、それぞれ固体分離媒体とともに別々に取り
だす工程を含む方法である。請求項３の発明は、請求項
２において、取りだした軽物質及び重物質を、それぞれ
篩い分けし、固体分離媒体を分離する工程を含む方法で
ある。請求項３の発明は、好ましくは、分離した固体分
離媒体を、固体分離媒体を混合する工程に循環し再使用
する工程を含む。また、請求項４の発明は、比較的小粒
径からなる分離対象物の比重偏析分離装置であって、 分離対象物を、各粒径のグループＩ、II、III、・・
・に篩い分けするための第１の篩分機、 各粒径グループの分離対象物とそれに対する固体分離
媒体を受入れ、比重の小さい軽物質と比重の大きい重物
質に分離するための円筒分離槽、及び 当該円筒分離槽に水平旋回振動を印加し、分離対象物
と固体分離媒体を流動化させ、当該軽物質と重物質を当
該固体分離媒体を挟んでその上下に分離せしめるための
加振装置とからなることを特徴とする水平旋回振動によ
る比重偏析分離装置、を提供する。 請求項５の発明は、請求項４において、円筒分離槽が、
その上部に偏析分離された軽物質を固体分離媒体ととも
に抜き出す抜出量を調整する管開閉バルブと、その下部
に偏析分離された重物質を固体分離媒体とともに抜き出
す抜出量を調整する管開閉バルブとを備える装置であ
る。請求項６の発明は、請求項５において、抜き出され
た軽物質と固体分離媒体とを分離する第２の篩分機及び
抜き出された重物質と固体分離媒体とを分離する第３の
篩分機とを備える装置である。請求項７の発明は、請求
項６において、分離された軽物質を集める軽物質貯留箱
及び重物質を集める重物質貯留箱を備える装置である。
請求項８の発明は、請求項６において、分離された固体
分離媒体を、円筒分離槽に循環する循環手段を備える装
置である。請求項４〜８のいずれかにおいて、好ましく
は第１の篩分機に分離対象物を供給するための供給管と
及びその供給量を調節する管開閉バルブとを備える装置
である。請求項４〜８のいずれかにおいて、好ましくは
第１の篩分機で分離された分離対象物を、円筒分離槽に
供給するための供給箱を備える装置である。SUMMARY OF THE INVENTION The present invention has been made to solve such problems. That is, the invention of claim 1 is a specific gravity segregation separation method for an object to be separated having a relatively small particle size, wherein the object to be separated is divided into groups I, II, III,.
・ Sieving into each particle size group I, II, III, ...
In which the separation target is composed of a light substance having a low specific gravity and a heavy substance having a high specific gravity, respectively. For each particle size group I, II, III,. Mixing a solid separation medium having a particle size slightly larger or slightly smaller and having a specific gravity intermediate between the light substance and the heavy substance, and applying a horizontal swirling vibration in the presence of the solid separation medium And
A method of separating the light substance and the heavy substance above and below the separation medium with a specific gravity segregation separation method using horizontal rotation vibration. The invention according to claim 2 is the method according to claim 1, including a step of separately taking out the separated light substance and heavy substance together with the solid separation medium. A third aspect of the present invention is a method according to the second aspect, further comprising a step of sieving the light substance and the heavy substance taken out to separate a solid separation medium. The invention of claim 3 preferably includes a step of circulating the separated solid separation medium to a step of mixing the solid separation medium and reusing the separated solid separation medium. Further, the invention according to claim 4 is a specific gravity segregation separation device for an object to be separated having a relatively small particle size, wherein the object to be separated is divided into groups I, II, III,.
A first sieving machine for sieving, a cylindrical separation tank for receiving the separation target of each particle size group and the solid separation medium corresponding thereto, and separating them into a light substance having a small specific gravity and a heavy substance having a large specific gravity; And a vibrating device for applying horizontal swirling vibration to the cylindrical separation tank, fluidizing the object to be separated and the solid separation medium, and separating the light substance and the heavy substance above and below the solid separation medium. And a specific gravity segregation / separation apparatus using horizontal swirling vibration. According to a fifth aspect of the present invention, in the fourth aspect, the cylindrical separation tank comprises:
A pipe opening / closing valve at the upper part that adjusts the amount of extraction of the light substance segregated and separated together with the solid separation medium, and a pipe opening and closing valve at the lower part of the pipe adjusts the amount of extraction that extracts the heavy substance segregated and separated together with the solid separation medium. It is a device provided with. The invention according to claim 6 is the invention according to claim 5, wherein the second sieve for separating the extracted light substance and the solid separation medium and the third sieve for separating the extracted heavy substance and the solid separation medium. It is a device provided with a separator. The invention of claim 7 is the apparatus according to claim 6, comprising a light substance storage box for collecting separated light substances and a heavy substance storage box for collecting heavy substances.
An eighth aspect of the present invention is the apparatus according to the sixth aspect, further comprising a circulating means for circulating the separated solid separation medium into a cylindrical separation tank. An apparatus according to any one of claims 4 to 8, further comprising a supply pipe for supplying the separation object to the first sieving machine, and a pipe opening / closing valve for adjusting the supply amount. An apparatus according to any one of claims 4 to 8, further comprising a supply box for supplying the separation target, preferably separated by the first sieving machine, to the cylindrical separation tank.
【０００５】[0005]
【発明の実施の形態】次に本発明の好ましい実施態様を
図面を参照しながら説明する。本発明の分離対象物は直
径２ｍｍ以下の小粒径の異種混合粉体である。図１は本
発明の水平旋回振動による比重差選別法を実施する装置
を示すフローシートである。ここでＳ−Ｉは、小さな粒
径の分離対象物を分離する工程であり、Ｓ−IIは大きな
分離対象物を分離する工程である。ここでは分離対象物
は、軽物質２と重物質３からなる２成分系であり、それ
ぞれが大粒径と小粒径とからなる。図では軽物質２は○
で、重物質は●で示され、また大きい円は大粒径を小さ
い円は小粒径を表す。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of the present invention will be described with reference to the drawings. The separation object of the present invention is a heterogeneous mixed powder having a small particle diameter of 2 mm or less. FIG. 1 is a flow sheet showing an apparatus for performing the specific gravity difference sorting method by horizontal turning vibration of the present invention. Here, SI is a step of separating a separation target having a small particle size, and S-II is a step of separating a large separation target. Here, the separation target is a two-component system including the light substance 2 and the heavy substance 3, each of which has a large particle diameter and a small particle diameter. In the figure, light substance 2 is ○
Where heavy substances are indicated by ●, large circles represent large particle diameters, and small circles represent small particle diameters.
【０００６】まず工程Ｓ−Ｉについて説明する。１は、
このような分離対象物を篩分機４に供給する分離対象物
供給管であり、供給量はバルブ５等により調節されるこ
とが好ましい。第１の篩分機４で分離対象物は、小粒径
のグループＩと大粒径のグループIIとに篩に分けられ、
篩下の小粒径のグループＩは工程Ｓ−Ｉに、篩上の大粒
径のグループIIは工程Ｓ−IIに送られる。ここで、小さ
な分離対象物は網下を通じて第１の篩分機の下に設置さ
れている第１の供給箱２１に一旦送られることが好まし
い。供給箱２１はバッファ槽であって、ここから小さい
分離対象物が円筒分離槽６に供給される。供給量はバル
ブ２３等により調節される。First, step SI will be described. 1 is
It is a separation object supply pipe for supplying such a separation object to the sieving machine 4, and the supply amount is preferably adjusted by a valve 5 or the like. In the first sieving machine 4, the objects to be separated are classified into a small particle size group I and a large particle size group II, and
Group I with a small particle size under the sieve is sent to Step SI, and Group II with a large particle size on the sieve is sent to Step S-II. Here, it is preferable that the small separation object is once sent to the first supply box 21 installed below the first sieving machine through the screen. The supply box 21 is a buffer tank from which a small separation target is supplied to the cylindrical separation tank 6. The supply amount is adjusted by the valve 23 or the like.
【０００７】図２にも詳しく示すように円筒分離槽６
は、当該小さな分離対象物と固体分離媒体７を受入れ、
比重の小さい軽物質と比重の大きい重物質を分離するた
めのものである。円筒分離槽６は加振装置８を備えてお
り、この加振装置８により水平旋回振動が印加される。
同分離槽６に小さな分離対象物と固体分離媒体７を満た
した後、水平旋回振動を加えてこれらを流動化させる。
分離媒体はその分離対象物の粒径より少し大きいか少し
小さい粒径を持ち、かつ比重が軽物質と重物質の中間の
ものである。例えばＺｒＯ２あるいはＡｌ２Ｏ３ビーズ
が使われる。流動化により比重偏析がおき、固体分離媒
体７を挟んで、当該固体分離媒体の比重より小さい比重
の軽物質２は分離媒体７の表面上部に偏析され、分離媒
体の比重より大きい比重の重物質３は分離媒体の下部に
偏析されて分離槽６の下部に堆積される。[0007] As shown in detail in FIG.
Receives the small separation object and the solid separation medium 7,
It is for separating a light substance having a small specific gravity and a heavy substance having a large specific gravity. The cylindrical separation tank 6 is provided with a vibration device 8, and horizontal vibration is applied by the vibration device 8.
After the separation tank 6 is filled with a small separation target and a solid separation medium 7, they are fluidized by applying a horizontal swirling vibration.
The separation medium has a particle size slightly larger or slightly smaller than the particle size of the object to be separated, and has a specific gravity intermediate between the light substance and the heavy substance. For example, ZrO 2 or Al 2 O 3 beads are used. Due to the fluidization, specific gravity segregation occurs, and the light substance 2 having a specific gravity smaller than the specific gravity of the solid separation medium 7 is segregated on the upper surface of the separation medium 7 with the solid separation medium 7 interposed therebetween, and a heavy substance having a specific gravity larger than the specific gravity of the separation medium 7. 3 is segregated at the lower part of the separation medium and is deposited at the lower part of the separation tank 6.
【０００８】分離槽６は、これら偏析分離された軽物質
と重物質をそれぞれ固体分離媒体とともに取りだす手段
を備えていることが好ましく、ここでは、分離槽の上部
には軽物質の抜出量調整用の管開閉バルブ１０が、下部
には重物質の抜出量調整用管開閉バルブ９が備えられて
いる。管開閉バルブ１０を開くと、軽物質２はオーバー
フローで固体分離媒体とともに流出して第２の篩分機１
１に送られる。下部の管開閉バルブ９を開いて、重物質
３を固体分離媒体とともに流出させ、これらは第３の篩
分機１４に送られる。第２の篩分機１１と第３の篩分機
に送られた軽物質２と重物質３は、それぞれ固体分離媒
体７と分離され、軽物質抜き出し管路１６、重物質抜き
出し管路１７を経て軽物質貯留箱１８と重物質貯留箱１
９に送られて集められる。第２の篩分機１１及び第３の
篩分機１３でおのおの分離された固体分離媒体７は、例
えば固体分離媒体収集管１２と１４を通じて集められた
後、適当な循環手段により円筒分離槽６に循環し再使用
することが好ましい。例えば送風機１５等の送風手段に
より、固体分離媒体移送管路２０を通じて輸送され、分
離槽６に投入され再使用される。The separation tank 6 is preferably provided with means for taking out the segregated and separated light substance and heavy substance together with a solid separation medium. In this case, the upper part of the separation tank has a light substance extraction amount adjustment. A pipe opening / closing valve 10 is provided, and a pipe opening / closing valve 9 for adjusting the extraction amount of heavy substances is provided below. When the pipe opening / closing valve 10 is opened, the light substance 2 flows out together with the solid separation medium in the overflow, and flows out of the second sieve 1
Sent to 1. The lower pipe opening / closing valve 9 is opened, and the heavy substance 3 flows out together with the solid separation medium, and these are sent to the third sieve 14. The light substance 2 and the heavy substance 3 sent to the second sieving machine 11 and the third sieving machine, respectively, are separated from the solid separation medium 7, and are separated through the light substance extraction pipe 16 and the heavy substance extraction pipe 17. Material storage box 18 and heavy substance storage box 1
It is sent to 9 and collected. The solid separation media 7 separated by the second sieving machine 11 and the third sieving machine 13 are collected, for example, through the solid separation medium collection tubes 12 and 14, and then circulated to the cylindrical separation tank 6 by a suitable circulation means. It is preferable to reuse it. For example, the air is transported through a solid separation medium transfer pipe 20 by an air blowing means such as an air blower 15 and is charged into the separation tank 6 for reuse.
【０００９】一方、Ｓ−IIは、大粒径の分離象物のグル
ープIIを処理する工程であって、ここに送られた大きな
分離対象物は、すでに述べた第１の供給箱２１に対応す
る第２の供給箱２２に送られた後、工程Ｉと全く同様に
して大粒径の軽物質２と大粒径の重物質３が完全に分離
され、最終的にこれらは、それぞれ軽物質貯留箱１８と
重物質貯留箱１９に集められ、図に示すように小粒径の
軽物質及び小粒径の重物質と合流して貯留される。上記
実施態様は、分離対象物を粒径によって２つのグループ
Ｉ、IIに篩い分けする例について説明したが、本発明は
この態様に限定されるものではなく、グループを粒径に
よって３つ以上のI、II、III、・・・に篩い分けし、上
記の説明に準じて工程Ｓ−１、Ｓ−II、Ｓ−III、・・
・と設けることもできる。本発明で分離する、軽物質と
重物質とは金属同士（例えばアルミニウムと鉛）の他、
種々の態様が考えられる。プラスチックス、グラスファ
イバー、銅を主要な材料として構成されている廃プリン
ト基板から有用金属である銅を選別する工程がある。こ
の廃プリント基板をまず破砕機等で２ｍｍ以下程度に破
砕すると、それぞれこの程度の粒径のプラスチックス、
グラスファイバー、銅の混合物が得られる。しかして、
プラスチックス、グラスファイバーの比重が１〜３程
度、銅の比重が８であることから、分離媒体としてジル
コニアビーズ（比重５〜６）を使用すればよいことがわ
かる。On the other hand, S-II is a step of treating a group II of large-diameter separated elephant, and the large object to be separated sent here corresponds to the first supply box 21 already described. After being sent to the second supply box 22, the large-diameter light substance 2 and the large-diameter heavy substance 3 are completely separated in exactly the same manner as in step I. They are collected in the storage box 18 and the heavy substance storage box 19 and are combined with the light substance having a small particle diameter and the heavy substance having a small particle diameter as shown in FIG. In the above embodiment, the example in which the separation target is sieved into two groups I and II according to the particle size has been described. However, the present invention is not limited to this embodiment. Sieving into I, II, III,..., And according to the above description, steps S-1, S-II, S-III,.
・ It can also be provided. The light substance and the heavy substance to be separated in the present invention are, besides metals (for example, aluminum and lead),
Various embodiments are conceivable. There is a process of sorting copper, which is a useful metal, from waste printed circuit boards composed mainly of plastics, glass fiber, and copper. When this waste printed circuit board is first crushed to about 2 mm or less by a crusher or the like, plastics
A mixture of glass fiber and copper is obtained. Then
Since the specific gravity of plastics and glass fiber is about 1 to 3 and the specific gravity of copper is 8, it is understood that zirconia beads (specific gravity 5 to 6) may be used as the separation medium.
【００１０】上記実施の形態で述べた本発明の作用を説
明する。供給管から供給された直径２ｍｍ程度の小粒径
の異種混合物である分離対象物を篩い分けて、粒度の小
さい物質は網下を通じて第１の円筒分離槽に供給させ、
粒度の大きい物質は網上を搬送させて他の円筒分離槽に
提供される。網下の分離対象物を同分離槽に満たした水
平旋回振動させると粉体が流動化され、このことによっ
て分離媒体より比重の小さい物質（軽物質）は固体分離
媒体の上に偏析され浮き上がり、固体分離媒体より比重
の大きい物質（重物質）は分離媒体の下に偏析され分離
槽の底部へ堆積されることになる。一方、偏析分離され
た軽物質と重物質を排出させるため、軽物質は分離槽上
部の管開閉バルブを開けてオーバーフローさせて抜き出
させ重物質は分離槽の下部の管開閉バルブを開けて抜き
出させる。抜き出された軽物質は配設された篩分機上に
移り、ここで軽物質と固体分離媒体が完全に分離されて
軽物質貯留箱に集まれる。また、同分離槽から排出され
た重物質は備えた篩分機上に移り、ここで重物質と固体
分離媒体が完全に分離されて重物質貯留箱に集まれる。
また、軽物質と重物質から分離された固体分離媒体は回
収されて再利用のために送風機で分離媒体を投入部へ回
される。The operation of the present invention described in the above embodiment will be described. The separation target, which is a heterogeneous mixture having a small particle size of about 2 mm in diameter supplied from the supply pipe, is sieved, and the material having a small particle size is supplied to the first cylindrical separation tank through a screen.
The material having a large particle size is conveyed on a net and provided to another cylindrical separation tank. When the object to be separated under the net is horizontally swirled and filled in the same separation tank, the powder is fluidized, whereby a substance (light substance) having a lower specific gravity than the separation medium is segregated on the solid separation medium and lifts up. A substance (heavy substance) having a higher specific gravity than the solid separation medium is segregated below the separation medium and deposited on the bottom of the separation tank. On the other hand, in order to discharge the segregated and separated light and heavy substances, open the pipe opening / closing valve at the top of the separation tank to allow the overflow of the light substance, and extract the heavy substances by opening the pipe opening / closing valve at the bottom of the separation tank. Let out. The extracted light substance is transferred to an installed sieve where the light substance and the solid separation medium are completely separated and collected in a light substance storage box. The heavy substance discharged from the separation tank is transferred to a sieve provided therein, where the heavy substance and the solid separation medium are completely separated and collected in a heavy substance storage box.
In addition, the solid separation medium separated from the light and heavy substances is recovered, and the separation medium is sent to a charging section by a blower for reuse.
【００１１】[0011]
【実施例】次に実施例に基づき本発明をさらに詳細に説
明する。 実施例１ 装置としては図１に示したフローのものを使用した。ま
た、図１における円筒分離槽６としては、具体的に図２
に示したような形状のものを使用した。軽物質としてア
ルミニウム（比重２〜３、粒径０．３〜０．８ｍｍ）、
重物質として鉛（比重１１〜１２、粒径０．３〜０．８
ｍｍ）が混在している分離対象物について、固体分離媒
体としてジルコニアビーズ（比重５〜６、粒径がそれぞ
れ０．７と１ｍｍ）を使用して水平旋回振動による比重
差選別試験を行った。まず、分離対象物を篩分して、粒
径０．２ｍｍに近い小粒径のグループ（Ｉ）と、粒径
０．８ｍｍに近い大粒径のグループ（II）に分離した。
粒径０．２ｍｍに近い小粒径のグループについては粒径
０．７ｍｍのジルコニアビーズを、粒径０．８ｍｍに近
い大粒径のグループについては粒径１ｍｍのジルコニア
ビーズを分離媒体として使用した。まず工程Ｓ−Ｉにお
いて、グループＩの上記分離対象物とジルコニアビーズ
を分離槽に投入して水平旋回振動を印加すると、図２に
示したように、軽物質であるアルミニウムがジルコニア
ビーズの上部に偏析され、重物質の鉛がジルコニアビー
ズの下部に偏析され、かくしてアルミニウムと鉛はほぼ
完全に分離された。アルミニウムとジルコニアビーズが
分離槽の上部から抜き出され、鉛とジルコニアビーズが
分離槽の下部から抜き出された。さらに篩分機によりア
ルミニウムとジルコニアビーズの分離及び鉛とジルコニ
アビーズの分離が完全に行われた。次に工程Ｓ−IIにお
いて、グループIIの分離対象物についても同様な試験を
行ったが、全く同様に完全に分離されることがわかっ
た。最後に工程Ｓ−Ｉで集められたアルミニウムと工程
Ｓ−IIで集められたアルミニウムを合わせ、また工程Ｓ
−Ｉで集められた鉛と工程Ｓ−IIで集められた鉛を合わ
せることにより、軽物質として粒径の異なるアルミニウ
ム（比重２〜３、粒径０．３〜０．８ｍｍ）、重物質と
して粒径の異なる鉛（比重１１〜１２、粒径０．３〜
０．８ｍｍ）が混在する分離対象物を、比重偏析分離方
法により完全に分離できることが確認された。Next, the present invention will be described in more detail with reference to examples. Example 1 An apparatus having a flow shown in FIG. 1 was used. Further, the cylindrical separation tank 6 in FIG.
The shape shown in FIG. Aluminum as light substance (specific gravity 2-3, particle size 0.3-0.8mm),
Lead as a heavy substance (specific gravity 11-12, particle size 0.3-0.8
mm), zirconia beads (specific gravity 5-6, particle size 0.7 and 1 mm, respectively) were used as a solid separation medium to conduct a specific gravity difference sorting test by horizontal swirling vibration. First, an object to be separated was sieved and separated into a group (I) having a small particle diameter close to 0.2 mm and a group (II) having a large particle diameter close to 0.8 mm.
Zirconia beads having a particle size of 0.7 mm were used as a separation medium for a group having a small particle size close to 0.2 mm, and zirconia beads having a particle size of 1 mm were used for a group having a large particle size close to 0.8 mm. . First, in Step SI, when the object to be separated of Group I and zirconia beads are put into a separation tank and horizontal swirling vibration is applied, as shown in FIG. 2, aluminum as a light substance is placed on top of the zirconia beads. Segregation caused the heavy substance lead to segregate at the bottom of the zirconia beads, thus almost completely separating aluminum and lead. Aluminum and zirconia beads were withdrawn from the top of the separation tank, and lead and zirconia beads were withdrawn from the bottom of the separation tank. Further, separation of aluminum and zirconia beads and separation of lead and zirconia beads were completely performed by a sieving machine. Next, in step S-II, a similar test was performed for the separation target of group II, and it was found that the separation was completely performed in the same manner. Finally, the aluminum collected in step SI and the aluminum collected in step S-II are combined, and
By combining the lead collected in -I with the lead collected in step S-II, aluminum having a different particle size (specific gravity 2-3, particle size 0.3-0.8 mm) as a light substance and a heavy substance Lead with different particle size (specific gravity 11-12, particle size 0.3-
0.8 mm) can be completely separated by the specific gravity segregation separation method.
【００１２】[0012]
【発明の効果】以上説明したように、本発明によれば、
分離対象物と固体分離媒体を混合し、水平旋回振動を印
加することで分離が行えるものであるから、分離媒体と
して液体を使用しないため、分離対象物への液体の付着
がなく、廃液の処理を考慮する必要もない。また乾燥も
不必要であるから、これに要する設備費・運用費などの
経費の節減が計られる。また、本発明によれば、固体分
離媒体を使用する従来の方法において、粒度効果のため
分離が困難であった粒径２ｍｍ以下程度の異種混合粉体
についても、実質的に完全に分離することができるもの
であり、特に廃棄物の分離回収の分野等に極めて効果的
に適用できる。As described above, according to the present invention,
Separation can be performed by mixing an object to be separated and a solid separation medium and applying horizontal rotation vibration.Therefore, no liquid is used as the separation medium. There is no need to consider. Also, since drying is not required, the cost of equipment and operation required for this can be reduced. Further, according to the present invention, in the conventional method using a solid separation medium, even a heterogeneous mixed powder having a particle size of about 2 mm or less, which was difficult to separate due to a particle size effect, is substantially completely separated. It can be applied very effectively especially in the field of waste separation and recovery.
【図１】本発明の方法を実施するための装置のフロー図
である。FIG. 1 is a flow diagram of an apparatus for performing the method of the present invention.
【図２】図１における円筒分離槽の水平旋回振動を印加
する状態を説明する模式図である。FIG. 2 is a schematic diagram illustrating a state in which a horizontal swing vibration of a cylindrical separation tank in FIG. 1 is applied.
１ 分離対象物供給管 ２ 軽物質 ３ 重物質 ４ 第１の篩分機 ５ 分離対象物供給管の管開閉バルブ ６ 円筒分離槽 ７ 固体分離媒体 ８ 水平旋回振動加振装置 ９ 重物質抜き出し用管開閉バルブ １０ 軽物質抜き出し用管開閉バルブ １１ 第２の篩分機 １２ 固体分離媒体収集管 １３ 第３の篩分機 １４ 固体分離媒体収集管 １５ 送風機 １６ 軽物質抜き出し管路 １７ 重物質抜き出し管路 １８ 軽物質貯蔵箱 １９ 重物質貯蔵箱 ２０ 固体分離媒体移送管路 ２１ 第１の供給箱 ２２ 第２の供給箱 ２３ 小分離対象物供給管開閉バルブ DESCRIPTION OF SYMBOLS 1 Separation object supply pipe 2 Light substance 3 Heavy substance 4 1st sieving machine 5 Pipe opening and closing valve of separation object supply pipe 6 Cylindrical separation tank 7 Solid separation medium 8 Horizontal rotation vibration excitation device 9 Opening / closing pipe of heavy substance extraction Valve 10 Light substance extraction pipe opening / closing valve 11 Second sieving machine 12 Solid separation medium collection pipe 13 Third sieving machine 14 Solid separation medium collection pipe 15 Blower 16 Light substance extraction pipe 17 Heavy substance extraction pipe 18 Light substance Storage box 19 Heavy substance storage box 20 Solid separation medium transfer line 21 First supply box 22 Second supply box 23 Small separation object supply pipe open / close valve
───────────────────────────────────────────────────── フロントページの続き (72)発明者 チョイ ジュンチオル 茨城県つくば市小野川16番３ 工業技術院 資源環境技術総合研究所内 Ｆターム(参考） 4D021 JA01 JA05 JA08 JA09 JB01 KA01 KA03 KA13 LA04 LA20 NA09 NA10 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Choi Jun Ciol 16-3 Onogawa, Tsukuba, Ibaraki Pref.
Claims (8)
偏析方法であって、 分離対象物を、各粒径のグループＩ、II、III、・・
・に篩い分けし、各粒径グループＩ、II、III、・・・
の分離対象物が、それぞれ比重の小さい軽物質と比重の
大きい重物質から構成されるようにする工程、 各粒径グループＩ、II、III、・・・ごとに、その分
離対象物の粒径より少し大きいか又は少し小さい粒径で
あって、かつ、比重が当該軽物質と重物質の中間の値の
固体分離媒体を混合する工程、及び 当該固体分離媒体の存在下に水平旋回振動を印加し、
当該軽物質と重物質を当該分離媒体を挟んでその上下に
分離する工程とからなることを特徴とする水平旋回振動
による比重偏析分離方法。1. A method for the segregation of specific gravity of an object to be separated consisting of relatively small particles, wherein the object to be separated is divided into groups I, II, III,.
・ Sieving into each particle size group I, II, III, ...
In which the separation target is composed of a light substance having a low specific gravity and a heavy substance having a high specific gravity, respectively. For each particle size group I, II, III,. Mixing a solid separation medium having a particle size slightly larger or slightly smaller and having a specific gravity intermediate between the light substance and the heavy substance, and applying a horizontal swirling vibration in the presence of the solid separation medium And
A step of separating the light substance and the heavy substance above and below the separation medium with a specific gravity segregation separation method using horizontal rotation vibration.
体分離媒体とともに別々に取りだす工程を含む請求項１
記載の方法。2. The method according to claim 1, further comprising a step of separately taking out the separated light substance and heavy substance together with the solid separation medium.
The described method.
れ篩い分けし、固体分離媒体を分離する工程を含む請求
項２記載の方法。3. The method according to claim 2, further comprising a step of sieving each of the extracted light and heavy substances to separate a solid separation medium.
偏析分離装置であって、 分離対象物を、各粒径のグループＩ、II、III、・・
・に篩い分けするための第１の篩分機、 各粒径グループの分離対象物とそれに対する固体分離
媒体を受入れ、比重の小さい軽物質と比重の大きい重物
質に分離するための円筒分離槽、及び 当該円筒分離槽に水平旋回振動を印加し、分離対象物
と固体分離媒体を流動化させ、当該軽物質と重物質を当
該固体分離媒体を挟んでその上下に分離せしめるための
加振装置とからなることを特徴とする水平旋回振動によ
る比重偏析分離装置。4. A specific gravity segregation separation device for separating an object composed of relatively small particles, wherein the object is separated into groups I, II, III,.
A first sieving machine for sieving, a cylindrical separation tank for receiving the separation target of each particle size group and the solid separation medium corresponding thereto, and separating them into a light substance having a small specific gravity and a heavy substance having a large specific gravity; And a vibrating device for applying horizontal swirling vibration to the cylindrical separation tank, fluidizing the object to be separated and the solid separation medium, and separating the light substance and the heavy substance above and below the solid separation medium. A specific gravity segregation separation device by horizontal swirling vibration characterized by comprising:
た軽物質を固体分離媒体とともに抜き出す抜出量を調整
する管開閉バルブと、その下部に偏析分離された重物質
を固体分離媒体とともに抜き出す抜出量を調整する管開
閉バルブとを備える請求項４記載の比重偏析分離装置。5. A pipe opening / closing valve for controlling a discharge amount of a light substance separated and separated with a solid separation medium at an upper part thereof, and a heavy substance separated and separated at a lower part thereof together with a solid separation medium. 5. The specific gravity segregation separation device according to claim 4, further comprising a pipe opening / closing valve for adjusting an amount of extraction.
分離する第２の篩分機及び抜き出された重物質と固体分
離媒体とを分離する第３の篩分機とを備える請求項５記
載の比重偏析分離装置。6. The apparatus according to claim 5, further comprising a second sifter for separating the extracted light substance and the solid separation medium, and a third sifter for separating the extracted heavy substance and the solid separation medium. The specific gravity segregation separation device according to the above.
及び重物質を集める重物質貯留箱を備える請求項６記載
の比重偏析分離装置。7. The specific gravity segregation separation device according to claim 6, further comprising a light substance storage box for collecting separated light substances and a heavy substance storage box for collecting heavy substances.
に循環する循環手段を備える請求項６記載の比重偏析分
離装置。8. The specific gravity segregation separation device according to claim 6, further comprising a circulating means for circulating the separated solid separation medium to a cylindrical separation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11192342A JP2001017927A (en) | 1999-07-06 | 1999-07-06 | Method of gravity separation by horizontal turning motion and device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11192342A JP2001017927A (en) | 1999-07-06 | 1999-07-06 | Method of gravity separation by horizontal turning motion and device therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001017927A true JP2001017927A (en) | 2001-01-23 |
Family
ID=16289688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11192342A Pending JP2001017927A (en) | 1999-07-06 | 1999-07-06 | Method of gravity separation by horizontal turning motion and device therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001017927A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7533775B2 (en) | 2001-10-04 | 2009-05-19 | The University Of Nottingham | Separation of fine granular materials |
-
1999
- 1999-07-06 JP JP11192342A patent/JP2001017927A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7533775B2 (en) | 2001-10-04 | 2009-05-19 | The University Of Nottingham | Separation of fine granular materials |
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