JP3191315U - Metal electrolytic recovery equipment - Google Patents
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- 239000013522 chelant Substances 0.000 description 1
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Abstract
【課題】金属元素が溶解している液から電気分解によって金属を回収する電解回収装置において、より低濃度まで目的金属を取り切る電解回収装置を提供する。【解決手段】金属回収装置は、処理槽本体７内に、モータ１０によって軸４を中心にして回転する円筒状の陰極１と、該陰極１と対向するように配置された４枚の板状陽極２とを備えている。軸４は陰極１を取り外し可能に接続するため接続部４１と、陰極１に電解電流を給電するための給電部と、軸が直接処理液に接触しないように保護する、軸と電気的に絶縁された筒４２からなっており、さらに軸４をスムーズに回転させ、かつ軸４内への液の侵入を防止するためのベアリング部３を備えている。また、処理すべき液は蓄液槽９よりポンプ８を用いて処理槽７に供給され、処理槽７内での液面高さを陰極１が十分な浸漬面積を確保できるよう保持されながら、排出口から蓄液槽９に戻される。【選択図】図１PROBLEM TO BE SOLVED: To provide an electrolytic recovery device for removing a target metal to a lower concentration in an electrolytic recovery device for recovering a metal from a liquid in which a metal element is dissolved by electrolysis. SOLUTION: A metal recovery device has a cylindrical cathode 1 rotated about a shaft 4 by a motor 10 in a processing tank main body 7, and four plates arranged so as to face the cathode 1. It has an anode 2. The shaft 4 is electrically insulated from the shaft by protecting the connecting portion 41 for detachably connecting the cathode 1 and the feeding portion for supplying an electrolytic current to the cathode 1 so that the shaft does not come into direct contact with the treatment liquid. It is composed of a cylindrical cylinder 42, and further includes a bearing portion 3 for smoothly rotating the shaft 4 and preventing liquid from entering the shaft 4. Further, the liquid to be treated is supplied from the liquid storage tank 9 to the treatment tank 7 by using the pump 8, and the liquid level height in the treatment tank 7 is maintained so that the cathode 1 can secure a sufficient immersion area. It is returned to the liquid storage tank 9 from the discharge port. [Selection diagram] Fig. 1
Description
本考案は、金属イオンを含有する廃液から、電解によって金属を回収する装置に関する。
The present invention relates to an apparatus for recovering metal by electrolysis from a waste liquid containing metal ions.
工場等から排出される廃液（例えば、処理液など）には、例えば、ＡｕやＡｇ、Ｃｕ、Ｎｉ、白金族元素等の金属を含有しているものがあり、これらの金属は廃液から回収して再利用される。廃液から金属を回収する方法として以前からよく用いられる方法として、例えば特許文献１に示すように電気分解法が知られている。電気分解法は設備の維持管理が容易であることや、ランニングコストが小さいことなどのメリットがある点で優れている。 Some waste liquids (for example, treatment liquids) discharged from factories contain metals such as Au, Ag, Cu, Ni, and platinum group elements, and these metals are recovered from the waste liquid. And reused. As a method often used as a method for recovering metal from waste liquid, an electrolysis method is known as shown in Patent Document 1, for example. The electrolysis method is excellent in that it has advantages such as easy maintenance and management of equipment and low running costs.
一方、回収する対象が貴金属のような高価なものであったり、低濃度でも液中への残存が望ましくない有害元素である場合、電気分解法だけで液中の残存濃度が十分低くなるまで取り除くことは難しく、そのため、電気分解法で大部分を液からとった上で、更にこれら元素を取り除く為にイオン交換樹脂やキレート樹脂などの吸着手段、もしくは、沈殿反応や溶媒抽出などの化学的手段を併用するのが常法であった。これらの方法は設備の大型化に繋がっていた為、近年では、電解のみでより低濃度まで液中から回収する方法が望まれている。 On the other hand, if the object to be recovered is an expensive one such as a precious metal or a harmful element that is not desired to remain in the liquid even at a low concentration, it is removed only by electrolysis until the residual concentration in the liquid becomes sufficiently low. Therefore, after removing most of these elements from the liquid by electrolysis, adsorption means such as ion exchange resin or chelate resin, or chemical means such as precipitation reaction or solvent extraction It was the usual method to use together. Since these methods have led to an increase in equipment size, in recent years, there has been a demand for a method of recovering from the liquid to a lower concentration only by electrolysis.
電気分解法のみで目的とする金属の濃度を十分低くすることが困難な理由は、目的とする金属濃度が下がることにより、水の電気分解による水素の発生反応が競争的となり、金属を析出させる反応の電流効率が下がることにある。電流効率の低下を出来る限り避けるためには、電極表面への目的金属の供給効率を上げることが有効であり、そのためには、析出電極と液との間の相対速度を高めることが有効であることが知られている。液の速度を高めるために最も一般的な手段は高速の液流を発生させるポンプを使用することであるが、ポンプの発生させる圧力に耐える構造の電解機が必要であることとも合わせ、設備が大型化するきらいがあるため、特許文献２〜５に示すような、回収対象を析出させる電極をモータなどの手段で回転させて電極と電解液との間の相対速度を作り出すことのできる回転式電解回収装置が多く使用されている。回転式電解回収装置であれば、析出電極の回転速度を上げることで、ある程度まで残留する金属濃度を下げることが可能である。 The reason why it is difficult to sufficiently reduce the concentration of the target metal only by the electrolysis method is that the generation of hydrogen by electrolysis of water becomes competitive and the metal is precipitated by reducing the target metal concentration. The current efficiency of the reaction is reduced. In order to avoid a decrease in current efficiency as much as possible, it is effective to increase the supply efficiency of the target metal to the electrode surface, and for that purpose, it is effective to increase the relative speed between the deposition electrode and the liquid. It is known. The most common means to increase the liquid speed is to use a pump that generates a high-speed liquid flow. In addition to the need for an electrolyzer that can withstand the pressure generated by the pump, Since there is a tendency to increase the size, as shown in Patent Documents 2 to 5, a rotary type capable of creating a relative speed between the electrode and the electrolyte by rotating the electrode for depositing the collection target by means of a motor or the like. Many electrolytic recovery devices are used. In the case of a rotary electrolytic recovery apparatus, it is possible to reduce the residual metal concentration to some extent by increasing the rotation speed of the deposition electrode.
しかしながら、回転速度を上げることによる残留金属濃度の低下の効果には限りがある。これは、電極表面にごく近い液が電極の回転に追随して動く為、相対速度を上げることが難しいことによると考えられる。これを解決する手段として特許文献６に示すような、遠心方向の流れの利用が考えられる。回転式電解回収装置においても、同様な形状をしたものは過去から存在しており、特許文献７においても示されているが、液と析出電極表面の相対速度が上がるのは穴の周囲のみに限られ、効果も限定的であった。
However, the effect of lowering the residual metal concentration by increasing the rotational speed is limited. This is thought to be because it is difficult to increase the relative speed because the liquid very close to the electrode surface moves following the rotation of the electrode. As a means for solving this, use of a flow in the centrifugal direction as shown in Patent Document 6 can be considered. In the rotary electrolytic recovery apparatus, the same shape has existed in the past, and it is also shown in Patent Document 7, but the relative speed between the liquid and the deposition electrode surface is increased only around the hole. Limited and limited effect.
本考案は、上記問題を解決する為に鋭意検討を行った結果、液の遠心方向の流れを有効に活用し、析出電極表面と液との間の相対速度を十分に確保し、かつ、より広い電極面積で効果を得られることにより、目的とする金属を液からより低い残留濃度まで取りきることが出来る方法を見出すに至ったものである。
As a result of intensive studies to solve the above problems, the present invention effectively utilizes the flow in the centrifugal direction of the liquid, sufficiently secures the relative velocity between the deposition electrode surface and the liquid, and more By obtaining an effect with a wide electrode area, the inventors have found a method capable of removing the target metal from the liquid to a lower residual concentration.
すなわち、金属元素が溶解している液から電気分解によって金属を回収する電解回収装置であって、軸を中心として回転する筒状で側面に開口部を有し、より好ましくは該開口部の側面全体に対する面積比率が２０〜７０％である析出電極と、前記筒状の電極を回転させる駆動手段と該筒状の電極の対極となる電極を有してなり、さらに前記筒状電極側面の開口部において、筒状電極から見て内面または外面に貼り付ける形、もしくは、開口部内に埋め込む形で、前記筒状電極と電気的に導通している導電体が筒状電極の回転軸から見た投影幅が２ｍｍ以下、より好ましくは０．３〜０．５ｍｍとなるように配置されていることを特徴とする電解回収装置である。 That is, an electrolytic recovery device that recovers metal from a solution in which a metal element is dissolved by electrolysis, and has a cylindrical shape that rotates about an axis and has an opening on a side surface, more preferably a side surface of the opening A deposition electrode having an area ratio of 20 to 70% with respect to the whole; drive means for rotating the cylindrical electrode; and an electrode serving as a counter electrode of the cylindrical electrode; In the part, the conductor electrically connected to the cylindrical electrode as seen from the cylindrical electrode in the form of being attached to the inner surface or the outer surface as seen from the cylindrical electrode or embedded in the opening is viewed from the rotational axis of the cylindrical electrode. The electrolytic recovery apparatus is characterized in that the projected width is 2 mm or less, more preferably 0.3 to 0.5 mm.
更には、筒状電極の回転によって発生する回転方向の液の流れを遠心方向の流れに変換する機能を持つ整流板が配されていることを特徴とする電解回収装置である。
Further, the electrolytic recovery apparatus is characterized in that a current plate having a function of converting a liquid flow in the rotation direction generated by the rotation of the cylindrical electrode into a flow in the centrifugal direction is arranged.
本考案の電解機は、回転式電解回収装置において、筒型の析出電極側面に開口部を有し、その内面または外面に貼り付ける形、もしくは、開口部内に埋め込む形で網状、櫛状、コイル状などの導電体が接触していることを特徴とするものである。 The electrolyzer according to the present invention is a rotary electrolysis recovery device having an opening on the side surface of a cylindrical deposition electrode, and is attached to the inner surface or the outer surface of the electrode or embedded in the opening. It is characterized in that a conductor such as a shape is in contact.
側面開口部に前述のような導電体が存在することで、電極の回転に伴い、回転方向に垂直な、即ち遠心方向の流れが生じ、該導電体部への金属イオンの供給が改善されることで、より低濃度まで液から金属イオンを取り切ることが出来る。 Due to the presence of the conductor as described above in the side opening, as the electrode rotates, a flow perpendicular to the rotation direction, that is, a flow in the centrifugal direction occurs, and the supply of metal ions to the conductor is improved. Thus, metal ions can be removed from the liquid to a lower concentration.
開口部の面積は側面の全面積に対して２０〜７０％とするのが良い。ここで、開口部とは、後述する筒軸からの投影断面積が２ｍｍ以内の部材が存在する部分を除いて算出される面積と定義する。７０％よりも開口面積が大きいと、遠心力の効果を十分得ることが出来ず、２０％よりも開口面積が小さいと、遠心力の効果を得られる電極部分の面積が小さすぎるため、効果が不十分となる。 The area of the opening is preferably 20 to 70% with respect to the total area of the side surface. Here, the opening is defined as an area calculated excluding a portion where a member having a projected cross-sectional area of 2 mm or less from a cylinder axis to be described later exists. If the opening area is larger than 70%, the effect of centrifugal force cannot be sufficiently obtained. If the opening area is smaller than 20%, the area of the electrode portion that can obtain the centrifugal force effect is too small, and thus the effect is obtained. It becomes insufficient.
開口部に貼り付けられる、もしくは埋め込まれる導電体は、開口部を通過した液が十分接触することができ、かつ、開口部を通過する遠心方向流れを妨げすぎないように設置する。遠心力が働く方向に垂直な方向における幅が２ｍｍ以下であることが望ましい。２ｍｍ以上の部分があっても差し支えはないが、その部分は液の流れを制限する部分として非開口部とみなす。液の遠心方向流れを妨げない目的からは導電体の幅はより細いほうが好適であるが、あまり細いと電気抵抗の増大を招き導電体上での電気分解反応が不十分となるため、０．３ｍｍ以上０．５ｍｍ以下とするのが好適である。導電体の形状は網状、櫛状、コイル状などが好適である。
開口による電極面積減を補うため、前記導電体の面積は、対極を筒外に配置する電解機においては、
（筒の開口部を減じない外側面総面積）≦（筒の開口部を減じた外側面総面積）＋（筒の中心軸から筒の開口部に投影された部分にかかる導電体の総面積）
とするのが良い。上記を満たすために例えば網状の導電体を複数層重ねて配しても良い。筒の開口部分に配された導電体は容易に電流が回り込むことが出来るため、筒の内面側/外面側を問わず算入することができる。
The conductor attached or embedded in the opening is installed so that the liquid that has passed through the opening can be sufficiently in contact with the conductor and the flow in the centrifugal direction that passes through the opening is not hindered. It is desirable that the width in the direction perpendicular to the direction in which the centrifugal force acts is 2 mm or less. Although there is no problem even if there is a part of 2 mm or more, the part is regarded as a non-opening part as a part that restricts the flow of the liquid. For the purpose of not hindering the centrifugal flow of the liquid, it is preferable that the width of the conductor is narrower. However, if the width is too small, the electrical resistance increases and the electrolysis reaction on the conductor becomes insufficient. It is preferable to set it to 3 mm or more and 0.5 mm or less. The shape of the conductor is preferably a net shape, a comb shape, a coil shape, or the like.
In order to compensate for the electrode area reduction due to the opening, the area of the conductor is the electrolysis machine in which the counter electrode is arranged outside the cylinder.
(Total area of the outer surface without reducing the opening of the cylinder) ≦ (Total area of the outer surface without reducing the opening of the cylinder) + (Total area of the conductor covering the portion projected from the central axis of the cylinder to the opening of the cylinder) )
It is good to do. In order to satisfy the above, for example, a plurality of net-like conductors may be stacked. Since the electric conductor arranged in the opening portion of the cylinder can easily pass a current, it can be included regardless of the inner side / outer side of the cylinder.
尚、対極が筒内に配される電解機の場合は上式の外側面を内側面と読みかえればよいし、対極が筒内と筒外の両方に配される電解機の場合には内外を問わず総面積で計算すればよい。 In the case of an electrolyzer in which the counter electrode is arranged in the cylinder, the outer surface of the above formula may be read as the inner surface, and in the case of an electrolyzer in which the counter electrode is arranged both inside and outside the cylinder, What is necessary is just to calculate with a total area irrespective of.
また、筒表面の流れは開口部を貫通する方向の流れだけでなく、筒の回転方向の流れも存在するので、筒の回転方向の流れによる物質交換を良くするためには、前記導電体は筒の表面より突出していたほうがより有利である。即ち、導電体が開口部に埋め込まれ、筒本体に凸部を有しない構造よりは、導電体が開口部の内面側もしくは外面側にかぶせるような形で貼り付けられ、筒本体から突出するようにすると、より効果的である。 In addition, since the flow on the surface of the cylinder includes not only the flow in the direction of penetrating the opening but also the flow in the rotation direction of the cylinder, in order to improve material exchange due to the flow in the rotation direction of the cylinder, the conductor is It is more advantageous that it protrudes from the surface of the cylinder. In other words, rather than a structure in which the conductor is embedded in the opening and the tube body does not have a convex portion, the conductor is attached so as to cover the inner surface side or the outer surface side of the opening portion, and protrudes from the tube body. This is more effective.
本考案の電解機は、更に、上述の遠心方向の流れを有効に利用する為の仕組みを有することが出来る。即ち、析出電極回転体の内側に中央から析出電極方向に向かって伸びる板状の固定された若しくは析出電極回転体と異なる回転速度で動く整流体を有することが出来る。更に／または、析出電極回転体の内側面に析出電極内面近傍の流れを拘束する突起物もしくは整流板を有することが出来る。前者の整流体は、析出電極の回転方向に追随しようとする液の流れを遠心方向に変えることにより、本考案の効果を増幅させる。後者の整流体は、析出電極付近の液の流れを拘束することで、より回転方向に速度を高める為、液にかかる遠心力が大きくなり、その結果本考案の効果を増幅させる。 The electrolyzer of the present invention can further have a mechanism for effectively using the above-described centrifugal flow. That is, it is possible to have a plate-like fixed rectifier that extends from the center in the direction of the deposition electrode or moves at a different rotational speed from the deposition electrode rotator inside the deposition electrode rotator. In addition, or on the inner side surface of the deposition electrode rotating body, a protrusion or a current plate that restrains the flow in the vicinity of the inner surface of the deposition electrode can be provided. The former rectifier amplifies the effect of the present invention by changing the flow of the liquid to follow the rotation direction of the deposition electrode in the centrifugal direction. The latter rectifier restricts the flow of the liquid in the vicinity of the deposition electrode, thereby increasing the speed in the rotation direction. Therefore, the centrifugal force applied to the liquid increases, and as a result, the effect of the present invention is amplified.
更に／または、析出電極回転体の外側に、析出電極の回転方向の液の流れを析出電極から離れる方向に変換する機能を持つ整流体を有することも出来る。この整流体は、析出電極の外側に陰圧を生じさせるため、液が析出電極筒の内側から外側へ開口部を通して流れることを促進する。 Further, a rectifying body having a function of converting the liquid flow in the rotation direction of the deposition electrode in a direction away from the deposition electrode may be provided outside the deposition electrode rotator. Since this rectifier generates a negative pressure outside the deposition electrode, it promotes the flow of liquid through the opening from the inside to the outside of the deposition electrode cylinder.
以下に、本考案の回転式電解機の実施形態の例を図面を用いて説明する。尚、本考案は以下の例に限定されるものではない。
図１は、円筒状の析出電極回転体を回転させる金属回収装置の断面図である。なお、本例では金属の一般的な析出反応を想定し、析出電極を陰極、対極を陽極として説明する。
Below, the example of embodiment of the rotary electrolyzer of this invention is described using drawing. In addition, this invention is not limited to the following examples.
FIG. 1 is a cross-sectional view of a metal recovery device that rotates a cylindrical deposition electrode rotor. In this example, a general metal deposition reaction is assumed, and the deposition electrode is described as a cathode and the counter electrode is described as an anode.
図１に示す金属回収装置は、処理槽本体７内に、モータ１０によって軸４を中心にして回転する円筒状の陰極１と、該陰極１と対向するように配置された４枚の板状陽極２とを備えている。軸４は陰極１を取り外し可能に接続するため接続部４１と、陰極１に電解電流を給電するための給電部（図示せず）と、軸が直接処理液に接触しないように保護する、軸と電気的に絶縁された筒４２からなっており、さらに軸４をスムーズに回転させ、かつ軸４内への液の侵入を防止するためのベアリング部３を備えている。また、処理すべき液は蓄液槽９よりポンプ８を用いて処理槽７に供給され、処理槽７内での液面高さを陰極１が十分な浸漬面積を確保できるよう保持されながら、排出口６（図示せず）から蓄液槽９に戻される。 The metal recovery apparatus shown in FIG. 1 includes a cylindrical cathode 1 that is rotated about a shaft 4 by a motor 10 in a processing tank body 7, and four plate-like plates that are arranged to face the cathode 1. And an anode 2. The shaft 4 has a connection portion 41 for removably connecting the cathode 1, a power feeding portion (not shown) for feeding an electrolytic current to the cathode 1, and a shaft that protects the shaft from coming into direct contact with the processing liquid. And a bearing portion 3 for smoothly rotating the shaft 4 and preventing liquid from entering the shaft 4. Further, the liquid to be processed is supplied from the storage tank 9 to the processing tank 7 using the pump 8, and the liquid level in the processing tank 7 is held so that the cathode 1 can secure a sufficient immersion area, It returns to the liquid storage tank 9 from the discharge port 6 (not shown).
図２は、本考案の特徴の一つである、析出電極回転体の構造について示した断面図である。陰極となる回転体１はステンレス鋼やチタンなど、処理液に対する耐腐食性を持つ電気伝導性物質から形成され、開口部を持った本体１１とその開口部に貼り付けられた幅２ｍｍ以内の網状導電体１２からなる。貼り付けの手段は特に問わないが、本体１１と導電体１２は電気的に接続されている必要があるため、ロウ付けや溶接などの手段が好適に用いられる。導電体１２の材質も特に限定されないが、上記ロウ付けや溶接などの接続手段への適合性や、材質の差異に起因する局部腐食その他の予期せぬ不具合を防ぐため、本体１１と同じ材質とするのが望ましい。 FIG. 2 is a sectional view showing the structure of the deposition electrode rotating body, which is one of the features of the present invention. A rotating body 1 serving as a cathode is formed of an electrically conductive material having corrosion resistance to a processing solution, such as stainless steel or titanium, and a main body 11 having an opening and a net-like shape having a width of 2 mm or less attached to the opening. It consists of a conductor 12. The attachment means is not particularly limited, but since the main body 11 and the conductor 12 need to be electrically connected, means such as brazing or welding is preferably used. Although the material of the conductor 12 is not particularly limited, the same material as that of the main body 11 is used in order to prevent compatibility with connection means such as brazing and welding and local corrosion and other unexpected problems caused by the difference in material. It is desirable to do.
図３および図４は、本考案のもう一つの特徴である、析出電極回転体によって生じる処理液の流れを制御する構造例について示したものであり、図３は陰極となる回転体１およびその内側部分の鳥瞰透視図、図４は断面図である。
軸筒４２の周囲に整流板５１が取り付けられている。整流板５１は陰極回転体１に触れないように設置する。電極回転体１が回転すると、それに伴って液が同じ方向に回転するが、整流板５１によって外向きの液の流れに変換される。なお、陽極を回転体１の内側に配するタイプの電解機であれば、整流板５１や軸筒４２に陽極としての機能を備えさせても良いし、別途陽極を配置しても良い。
3 and 4 show another example of the structure of the present invention, which is a structural example for controlling the flow of the treatment liquid generated by the deposition electrode rotating body, and FIG. 3 shows the rotating body 1 serving as a cathode and its structure. A bird's-eye perspective view of the inner part, FIG. 4 is a cross-sectional view.
A rectifying plate 51 is attached around the shaft cylinder 42. The rectifying plate 51 is installed so as not to touch the cathode rotating body 1. When the electrode rotating body 1 rotates, the liquid rotates in the same direction, but is converted into an outward liquid flow by the rectifying plate 51. In the case of an electrolytic machine of the type in which the anode is disposed inside the rotating body 1, the rectifying plate 51 and the shaft cylinder 42 may be provided with a function as an anode, or an anode may be separately arranged.
図５および図６は、析出電極回転体１によって生じる処理液の流れを制御する構造のもう一つの例について示したものであり、図５は析出電極回転体１およびその内側部分の鳥瞰透視図、図６は断面図である。
析出電極回転体１の内側に整流部材５２が取り付けられている。電極回転体１が回転すると、整流部材５２が一緒に回転し、液を同じ方向に強制的に回転させる。整流部材がないときよりも液の回転速度は高まり、その結果液は大きな遠心力を得るので、１の開口部を通して内側から外側への液の流れが加速する。液を強制的に回転させる効果を高めるためには、整流部材は図に示すような板状が望ましく、少なくとも、円周方向の寸法よりも、回転軸方向および半径方向の寸法が共に大きいことが望ましい。
5 and 6 show another example of a structure for controlling the flow of the processing liquid generated by the deposition electrode rotator 1, and FIG. 5 is a bird's-eye perspective view of the deposition electrode rotator 1 and its inner part. FIG. 6 is a cross-sectional view.
A rectifying member 52 is attached to the inside of the deposition electrode rotating body 1. When the electrode rotating body 1 rotates, the rectifying member 52 rotates together to forcibly rotate the liquid in the same direction. The rotational speed of the liquid is higher than when there is no rectifying member. As a result, the liquid obtains a large centrifugal force, so that the flow of liquid from the inside to the outside through one opening is accelerated. In order to enhance the effect of forcibly rotating the liquid, the rectifying member is preferably plate-shaped as shown in the figure, and at least both the dimension in the rotation axis direction and the radial direction are larger than the dimension in the circumferential direction. desirable.
図７は、析出電極回転体１によって生じる処理液の流れを制御する構造の更なる一例について示したものであり、図７は析出電極回転体１およびその外側近傍の断面図である。
析出電極回転体１の外側に、１に接触しないように整流板５３が取り付けられている。電極回転体１が回転すると、それに伴って液が同じ方向に回転するが、整流板５３によって外向きの液の流れに変換される。そのため、１の外周には陰圧が生じ、１の内側にある液が開口部を通して外側に移動する流れが加速する。なお、陽極を回転体１の外側に配するタイプの電解機であれば、陽極２の代わりに整流板５１に陽極としての機能を備えさせても良い。
FIG. 7 shows a further example of a structure for controlling the flow of the treatment liquid generated by the deposition electrode rotor 1, and FIG. 7 is a cross-sectional view of the deposition electrode rotor 1 and its vicinity.
A rectifying plate 53 is attached outside the deposition electrode rotating body 1 so as not to contact 1. When the electrode rotating body 1 rotates, the liquid rotates in the same direction, but is converted into an outward liquid flow by the rectifying plate 53. Therefore, a negative pressure is generated on the outer periphery of 1, and the flow in which the liquid inside 1 moves to the outside through the opening is accelerated. In the case of an electrolyzer of the type in which the anode is arranged outside the rotating body 1, the rectifying plate 51 may be provided with a function as an anode instead of the anode 2.
本考案によれば、これまで回転式電解機では困難とされてきた、液中金属のより低濃度までの回収を簡易な設備で実現することが出来る。
According to the present invention, recovery of a metal in liquid to a lower concentration, which has been difficult with a rotary electrolyzer, can be realized with simple equipment.
１ 析出電極回転体
１１ 本体
１２ 開口部に配置する導電体
２ 対極
３ ベアリング
４ 回転軸
４１ 電極接続部
４２ 軸筒
５１ 析出電極回転体内部の液流を遠心方向に向けるための整流体
５２ 析出電極回転体内面近傍の液流を拘束するための整流体
５３ 析出電極回転体外部の液流を遠心方向に向けるための整流体
６ 液排出口（図示なし）
７ 処理槽
８ ポンプ
９ 蓄液槽
１０ モータ
1 Deposition electrode rotating body
11 Body
12 Conductor placed in the opening
2 Counter electrode
3 Bearing
4 Rotating shaft
41 Electrode connection
42 Shaft cylinder
51 Rectifying body for directing the liquid flow inside the deposition electrode rotor in the centrifugal direction
52 Rectifier for constraining liquid flow in the vicinity of inner surface of deposition electrode rotor
53 Rectifier for Directing Liquid Flow Outside the Deposition Electrode Rotating Body in Centrifugal Direction
6 Liquid outlet (not shown)
7 Treatment tank
8 Pump
9 Liquid storage tank
10 Motor
Claims (12)
The electrolytic recovery apparatus according to any one of claims 8 to 11, wherein the rectifying plate has a function as a counter electrode of the cylindrical electrode.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2021088749A (en) * | 2019-12-05 | 2021-06-10 | アサヒプリテック株式会社 | Electrolytic metal recovery device |
| JP6975871B1 (en) * | 2021-09-06 | 2021-12-01 | 松田産業株式会社 | Electrolytic recovery device |
| CN114940526A (en) * | 2022-06-19 | 2022-08-26 | 北京工业大学 | Continuous regeneration photoelectric integrated sewage treatment device capable of realizing cathode-anode conversion |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021088749A (en) * | 2019-12-05 | 2021-06-10 | アサヒプリテック株式会社 | Electrolytic metal recovery device |
| JP7337676B2 (en) | 2019-12-05 | 2023-09-04 | アサヒプリテック株式会社 | Metal electrolytic recovery equipment |
| JP6975871B1 (en) * | 2021-09-06 | 2021-12-01 | 松田産業株式会社 | Electrolytic recovery device |
| WO2023033157A1 (en) * | 2021-09-06 | 2023-03-09 | 松田産業株式会社 | Electrolytic recovery device |
| JP2023037977A (en) * | 2021-09-06 | 2023-03-16 | 松田産業株式会社 | Electrolysis recovery device |
| CN114940526A (en) * | 2022-06-19 | 2022-08-26 | 北京工业大学 | Continuous regeneration photoelectric integrated sewage treatment device capable of realizing cathode-anode conversion |
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