JP2018183744A - Device and method for processing filter cleaning fluid of ultra filter device - Google Patents

Device and method for processing filter cleaning fluid of ultra filter device Download PDF

Info

Publication number
JP2018183744A
JP2018183744A JP2017087304A JP2017087304A JP2018183744A JP 2018183744 A JP2018183744 A JP 2018183744A JP 2017087304 A JP2017087304 A JP 2017087304A JP 2017087304 A JP2017087304 A JP 2017087304A JP 2018183744 A JP2018183744 A JP 2018183744A
Authority
JP
Japan
Prior art keywords
filter
cleaning liquid
solid
liquid
ultra
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.)
Granted
Application number
JP2017087304A
Other languages
Japanese (ja)
Other versions
JP6784640B2 (en
Inventor
智也 後田
Tomoya Nochida
智也 後田
隆洋 古薗
Takahiro Furuzono
隆洋 古薗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pan Pacific Copper Co Ltd
Original Assignee
Pan Pacific Copper Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pan Pacific Copper Co Ltd filed Critical Pan Pacific Copper Co Ltd
Priority to JP2017087304A priority Critical patent/JP6784640B2/en
Publication of JP2018183744A publication Critical patent/JP2018183744A/en
Application granted granted Critical
Publication of JP6784640B2 publication Critical patent/JP6784640B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Electrolytic Production Of Metals (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a processing device of a filter cleaning fluid of an ultra filter device which can properly process the filter cleaning fluid of the ultra filter device, and reduce a burden of a valuable metal recovery process for processing slime of a copper electrolyte, and to provide a processing method therefor.SOLUTION: A processing device of a filter cleaning fluid of an ultra filter device, includes: an implantation tank 2 which houses a filter cleaning fluid containing SiOoccurring from an ultra filter device 1 while flowing the filter cleaning fluid; a solid-liquid separation device 3 which performs solid-liquid separation of the filter cleaning fluid; and a pump 4 which pumps the filter cleaning fluid from the implantation tank 2 to the solid-liquid separation device 3.SELECTED DRAWING: Figure 1

Description

本発明は、ウルトラフィルタ装置のフィルタ洗浄液の処理装置及び処理方法に関し、特に、銅電解工程で発生する銅電解液浮遊物質を除去するウルトラフィルタ装置のフィルタ洗浄液の処理装置及び処理方法に関する。   The present invention relates to a processing device and a processing method for a filter cleaning liquid of an ultrafilter device, and more particularly to a processing device and a processing method for a filter cleaning liquid of an ultrafilter device that removes a copper electrolyte floating substance generated in a copper electrolysis process.

銅電解工程で生じる電着異常の原因となる銅電解液中の浮遊物質（ＳＳ）を除去するために銅電解液をウルトラフィルタ装置へ供給して浮遊物質を除去することが行われている。ウルトラフィルタ装置から排出されたフィルタ洗浄液は、銅電解槽の底抜き液とともに殿物タンクへ収容される。殿物タンクに収容された殿物は、殿物用遠心分離機で遠心分離され、遠心分離機で発生した殿物は有価金属回収工程へ送られ、ろ液は銅電解工程へ戻すことが行われている。   In order to remove the suspended matter (SS) in the copper electrolyte that causes the electrodeposition abnormality that occurs in the copper electrolysis process, the suspended matter is removed by supplying the copper electrolyte to the ultrafilter device. The filter cleaning liquid discharged from the ultrafilter device is accommodated in the temple tank together with the bottom liquid of the copper electrolytic cell. The temple housed in the temple tank is centrifuged by a centrifuge for the temple, the temple generated in the centrifuge is sent to the valuable metal recovery process, and the filtrate is returned to the copper electrolysis process. It has been broken.

しかしながら、近年、有価金属回収工程へ送られる殿物中の二酸化ケイ素（ＳｉＯ2）量が増大してきており、殿物を処理する有価金属回収工程の負荷が増大している。そこで、ＳｉＯ2の殿物への混入経路を調査したところ、有価回収工程へ送られる殿物中のＳｉＯ2量の増大は、ウルトラフィルタ装置のフィルタ洗浄液が原因の一つであることが分かった。 However, in recent years, the amount of silicon dioxide (SiO 2 ) in the deposit sent to the valuable metal recovery step has increased, and the load of the valuable metal recovery step for processing the deposit has increased. Therefore, when the mixing route of SiO 2 into the porcelain was investigated, it was found that the increase in the amount of SiO 2 in the porcelain sent to the valuable recovery process was caused by the filter cleaning liquid of the ultra filter device. .

上記課題を鑑み、本発明は、ウルトラフィルタ装置のフィルタ洗浄液を適切に処理し、銅電解液の殿物を処理する有価金属回収工程の負荷を低減することが可能なウルトラフィルタ装置のフィルタ洗浄液の処理装置及び処理方法を提供する。   In view of the above problems, the present invention provides a filter cleaning solution for an ultra filter device capable of appropriately processing the filter cleaning solution for an ultra filter device and reducing the load of a valuable metal recovery process for processing a copper electrolyte solution. A processing apparatus and a processing method are provided.

上記の通り、近年、殿物中の二酸化ケイ素（ＳｉＯ2）量が増大している原因は、銅電解槽の底抜き液とともに、ウルトラフィルタ装置から排出されたフィルタ洗浄液をバッファタンクへ収容し、これを搾殿して殿物を回収していることが原因であることを突き止めた。 As described above, in recent years, the cause of the increase in the amount of silicon dioxide (SiO 2 ) in the porridge is to contain the filter cleaning liquid discharged from the ultrafilter device in the buffer tank together with the bottoming liquid of the copper electrolytic cell, I found out that this was caused by squeezing this and collecting the temple.

そこで、本発明者は、ウルトラフィルタ装置から排出されたフィルタ洗浄液を銅電解槽の底抜き液とは別系統で処理することができないかどうか検討したところ、ウルトラフィルタ装置から発生するフィルタ洗浄液を流動させながら収容可能な打ち込みタンクを新設し、この打ち込みタンクから所定のタイミングで固液分離装置へフィルタ洗浄液を供給し、フィルタ洗浄液を固液分離することが有用であるとの知見を得た。   Therefore, the present inventor examined whether or not the filter cleaning liquid discharged from the ultrafilter device could be processed in a system different from the bottom draining solution of the copper electrolytic cell, and the filter cleaning liquid generated from the ultrafilter device flowed. It was found that it is useful to newly install a driving tank that can be accommodated while supplying the filter cleaning liquid from the driving tank to the solid-liquid separation device at a predetermined timing, and to separate the liquid into the liquid.

以上の知見を基礎として完成した本発明は一側面において、ウルトラフィルタ装置から発生するＳｉＯ2を含むフィルタ洗浄液を流動させながら収容する打ち込みタンクと、フィルタ洗浄液を固液分離する固液分離装置と、打ち込みタンクから固液分離装置へフィルタ洗浄液を送給するポンプとを備えるウルトラフィルタ装置のフィルタ洗浄液の処理装置が提供される。 The present invention completed on the basis of the above knowledge is, in one aspect, a driving tank that accommodates the filter cleaning liquid containing SiO 2 generated from the ultra filter apparatus while flowing, a solid-liquid separation apparatus that separates the filter cleaning liquid into a solid-liquid separation, An apparatus for treating a filter cleaning liquid of an ultrafilter device is provided, which includes a pump that feeds the filter cleaning liquid from a driving tank to a solid-liquid separator.

本発明に係るウルトラフィルタ装置のフィルタ洗浄液の処理装置は一実施形態において、打ち込みタンク、固液分離装置及びポンプに接続され、打ち込みタンク内のフィルタ洗浄液を引き抜いて、引き抜いたフィルタ洗浄液を打ち込みタンクへ循環させるための循環ラインを更に備える。   In one embodiment, the processing apparatus for the filter cleaning liquid of the ultrafilter device according to the present invention is connected to a driving tank, a solid-liquid separator, and a pump, pulls out the filter cleaning liquid in the driving tank, and draws the extracted filter cleaning liquid into the driving tank. A circulation line for circulation is further provided.

本発明に係るウルトラフィルタ装置のフィルタ洗浄液の処理装置は別の一実施形態において、打ち込みタンク内に収容されたフィルタ洗浄液を流動させる攪拌手段を備える。   In another embodiment, the processing apparatus for the filter cleaning liquid of the ultrafilter apparatus according to the present invention includes stirring means for causing the filter cleaning liquid stored in the driving tank to flow.

本発明に係るウルトラフィルタ装置のフィルタ洗浄液の処理装置は更に別の一実施形態において、固液分離装置が、遠心分離機である。   In another embodiment of the processing device for the filter cleaning liquid of the ultrafilter device according to the present invention, the solid-liquid separation device is a centrifuge.

本発明に係るウルトラフィルタ装置のフィルタ洗浄液の処理装置は更に別の一実施形態において、固液分離装置で固液分離された固形物が珪藻土を含む。   In still another embodiment of the processing apparatus for the filter cleaning liquid of the ultrafilter device according to the present invention, the solid material that is solid-liquid separated by the solid-liquid separation device contains diatomaceous earth.

本発明に係るウルトラフィルタ装置のフィルタ洗浄液の処理装置は更に別の一実施形態において、ウルトラフィルタ装置が銅電解液を処理する。   In another embodiment of the processing apparatus for the filter cleaning liquid of the ultrafilter apparatus according to the present invention, the ultrafilter apparatus processes the copper electrolyte.

本発明は別の一側面において、ウルトラフィルタ装置を洗浄する工程と、ウルトラフィルタ装置の洗浄により得られるフィルタ洗浄液を固液分離する工程とを有するウルトラフィルタ装置のフィルタ洗浄液の処理方法が提供される。   In another aspect of the present invention, there is provided a method for treating a filter cleaning liquid in an ultrafilter apparatus, which includes a step of cleaning the ultrafilter device and a step of solid-liquid separation of a filter cleaning liquid obtained by cleaning the ultrafilter device. .

本発明に係るウルトラフィルタ装置のフィルタ洗浄液の処理方法は一実施態様において、固液分離で得られる固形物の含水率が５０％以下となるように固液分離する。   In one embodiment, the method for treating the filter cleaning liquid of the ultrafilter device according to the present invention performs solid-liquid separation so that the water content of the solid material obtained by solid-liquid separation is 50% or less.

本発明に係るウルトラフィルタ装置のフィルタ洗浄液の処理方法は別の一実施態様において、フィルタ洗浄液を、遠心分離機を用いて固液分離する。   In another embodiment of the processing method of the filter cleaning liquid of the ultrafilter device according to the present invention, the filter cleaning liquid is subjected to solid-liquid separation using a centrifuge.

本発明に係るウルトラフィルタ装置のフィルタ洗浄液の処理方法は更に別の一実施態様において、固液分離で得られる固形物が珪藻土を含む。   The processing method of the filter washing | cleaning liquid of the ultra filter apparatus which concerns on this invention is another one Embodiment. The solid substance obtained by solid-liquid separation contains diatomaceous earth.

本発明に係るウルトラフィルタ装置のフィルタ洗浄液の処理方法は更に別の一実施態様において、固液分離で得られる固形物を製錬工程に送り、ろ液を銅電解工程へ送る。   The processing method of the filter washing | cleaning liquid of the ultra filter apparatus which concerns on this invention is another one Embodiment. The solid substance obtained by solid-liquid separation is sent to a smelting process, and a filtrate is sent to a copper electrolysis process.

本発明に係るウルトラフィルタ装置のフィルタ洗浄液の処理方法は更に別の一実施態様において、ウルトラフィルタ装置の洗浄により得られるフィルタ洗浄液を打ち込みタンクに収容し、打ち込みタンクからフィルタ洗浄液を抜き取って、打ち込みタンクへと循環させるとともに、打ち込みタンクから抜き取ったフィルタ洗浄液を一部抜き取って固液分離することを含む。   In still another embodiment, the method for treating the filter cleaning liquid of the ultrafilter device according to the present invention stores the filter cleaning liquid obtained by the cleaning of the ultrafilter device in the driving tank, extracts the filter cleaning liquid from the driving tank, and sets the driving tank. And a part of the filter cleaning liquid extracted from the driving tank and solid-liquid separation.

本発明によれば、ウルトラフィルタ装置のフィルタ洗浄液を適切に処理し、銅電解液の殿物を処理する有価金属回収工程の負荷を低減することが可能なウルトラフィルタ装置のフィルタ洗浄液の処理装置及び処理方法が提供できる。   ADVANTAGE OF THE INVENTION According to this invention, the processing apparatus of the filter cleaning liquid of the ultra filter apparatus which can reduce the load of the valuable metal collection | recovery process of processing the filter cleaning liquid of an ultra filter apparatus appropriately, and processing the copper electrolyte solution, and A processing method can be provided.

本発明の実施の形態に係るウルトラフィルタ装置のフィルタ洗浄液の処理装置を表す概略図である。It is the schematic showing the processing apparatus of the filter washing | cleaning liquid of the ultra filter apparatus which concerns on embodiment of this invention. 本発明の実施の形態に係る銅電解工程の銅電解液及び銅電解槽の底抜き液の処理フローの一例を表すフローチャートである。It is a flowchart showing an example of the processing flow of the copper electrolyte solution of the copper electrolysis process which concerns on embodiment of this invention, and the bottom extraction liquid of a copper electrolytic bath.

本発明の実施の形態に係るウルトラフィルタ装置のフィルタ洗浄液の処理装置及び処理方法について以下に説明する。   The processing apparatus and processing method of the filter cleaning liquid of the ultra filter apparatus according to the embodiment of the present invention will be described below.

（処理装置）
図１に例示するように、本発明の実施の形態に係る処理装置は、ウルトラフィルタ装置１と、ウルトラフィルタ装置１から発生するフィルタ洗浄液を収容する打ち込みタンク２と、固液分離装置３と、打ち込みタンク２から固液分離装置３へフィルタ洗浄液を送給するポンプ４とを備える。 (Processing equipment)
As illustrated in FIG. 1, a processing apparatus according to an embodiment of the present invention includes an ultrafilter device 1, a drive-in tank 2 that stores a filter cleaning liquid generated from the ultrafilter device 1, a solid-liquid separation device 3, and And a pump 4 for feeding the filter cleaning liquid from the driving tank 2 to the solid-liquid separator 3.

ウルトラフィルタ装置１は、銅電解工程で生じる電着異常の原因となる銅電解液中の浮遊物質（ＳＳ）をフィルタにより濾過分離する装置である。ウルトラフィルタ装置１で処理される銅電解液としては、硫酸濃度１５０〜１９０ｇ／Ｌ、銅濃度４０〜５０ｇ／Ｌ、塩素濃度４０〜７０ｍｇ／Ｌで、ＳＳを０．５〜５ ｍｇ／Ｌ程度含む電解液が利用される。   The ultra filter device 1 is a device that filters and separates suspended matter (SS) in a copper electrolyte solution that causes an electrodeposition abnormality that occurs in a copper electrolysis process. The copper electrolyte to be processed by the ultra filter device 1 has a sulfuric acid concentration of 150 to 190 g / L, a copper concentration of 40 to 50 g / L, a chlorine concentration of 40 to 70 mg / L, and an SS of about 0.5 to 5 mg / L. An electrolyte containing is used.

銅電解液に含まれるＳＳとしては、Ｖ属酸化物、殿物などの浮遊粒子が含まれる。ウルトラフィルタ装置１内には、例えば、円盤形のフィルタが６６枚備え付けられている。濾過効率を向上させるために、フィルタには二酸化ケイ素（ＳｉＯ2）を主成分とする濾過助剤が供給され、例えば、珪藻土が一般的に利用される。 The SS contained in the copper electrolyte includes suspended particles such as Group V oxides and porridges. In the ultra filter device 1, for example, 66 disk-shaped filters are provided. In order to improve the filtration efficiency, the filter is supplied with a filter aid mainly composed of silicon dioxide (SiO 2 ). For example, diatomaceous earth is generally used.

珪藻土は、珪藻の殻の化石からなる堆積物であることが知られており、８７質量％程度のＳｉＯ2を含有する。珪藻の殻には、多数の孔が開いており、溶液中に溶解している成分はそのまま通し、不溶性物質だけを捕捉する性質を有する。 Diatomaceous earth is known to be a deposit made of fossil diatom shells, and contains about 87% by mass of SiO 2 . The diatom shell has a large number of pores, and has a property of passing only the dissolved components in the solution and capturing only insoluble substances.

珪藻土を濾過助剤として利用することにより、珪藻土に銅電解液のＳＳを捕捉させ、銅電解液を浄化することができる。濾過助剤は、ウルトラフィルタ装置１内に銅電解液を供給する前に、フィルタの表面にプリコートさせ、フィルタ表面に所定の厚みの濾過助剤層を形成させて利用することができる。   By using diatomaceous earth as a filter aid, SS of the copper electrolyte can be captured by diatomaceous earth and the copper electrolyte can be purified. The filter aid can be used by pre-coating the filter surface before supplying the copper electrolyte into the ultrafilter device 1 and forming a filter aid layer having a predetermined thickness on the filter surface.

ウルトラフィルタ装置１でＳＳが除去された銅電解液は、銅電解工程へ送られる。ウルトラフィルタ装置１内のフィルタには、ＳＳが徐々に蓄積されるため、所定の期間毎にウルトラフィルタ装置１を洗浄する。ウルトラフィルタ装置１の洗浄は、例えば、フィルタ部分を回転させながらフィルタに対して水を噴射して接触（シャワーリング）させることにより、フィルタ表面の珪藻土からなる（ＳｉＯ2を含む）濾過助剤層を洗い流すことにより行われる。銅電解液のＳＳは、濾過助剤層に捕捉された状態でフィルタ洗浄液中に混ざり込む。 The copper electrolyte from which SS has been removed by the ultrafilter device 1 is sent to the copper electrolysis process. Since SS is gradually accumulated in the filter in the ultra filter device 1, the ultra filter device 1 is washed every predetermined period. Cleaning of the ultra filter device 1 includes, for example, a filter aid layer (including SiO 2 ) made of diatomaceous earth on the filter surface by spraying water on the filter while rotating the filter portion to bring it into contact (showering) It is done by washing away. The SS of the copper electrolyte is mixed into the filter cleaning liquid while being captured by the filter aid layer.

ウルトラフィルタ装置の洗浄により得られるフィルタ洗浄液は、打ち込みタンク２へ収容される。この打ち込みタンク２は、フィルタ洗浄液を所定の期間、保管するためのバッファタンクである。ウルトラフィルタ装置から発生するフィルタ洗浄液には、銅電解液中のＳＳを捕捉した珪藻土（ＳｉＯ2）を含む濾過助剤層が含まれており、これをタンク内で静置すると、沈降凝集が発生し、ポンプや配管を閉塞させる場合や、取り扱いが困難になる場合がある。このため、打ち込みタンク２内では、ＳｉＯ2を含むフィルタ洗浄液を流動させながら収容することが必要である。 The filter cleaning liquid obtained by cleaning the ultra filter device is stored in the driving tank 2. The driving tank 2 is a buffer tank for storing the filter cleaning liquid for a predetermined period. The filter cleaning liquid generated from the ultra filter device contains a filter aid layer containing diatomaceous earth (SiO 2 ) that captures SS in the copper electrolyte. When this is left in the tank, sedimentation and aggregation occur. However, the pump and piping may be blocked or the handling may be difficult. For this reason, it is necessary to accommodate the filter cleaning liquid containing SiO 2 while flowing in the driving tank 2.

「フィルタ洗浄液を流動させながら収容する」態様については特に限定されないが、例えば、図１に示すように、打ち込みタンク２、固液分離装置３及びポンプ４に接続され、打ち込みタンク２内のフィルタ洗浄液を引き抜いて、引き抜いたフィルタ洗浄液を打ち込みタンク２へ循環させるための循環ライン５を配置することが好ましい。そして、この循環ライン５を介して、フィルタ洗浄液に常時液流を生じさせることで、フィルタ洗浄液中の珪藻土の凝集沈降や配管の閉塞などを抑制することができる。   The aspect of “accommodating the filter cleaning liquid while flowing” is not particularly limited. For example, as shown in FIG. 1, the filter cleaning liquid in the driving tank 2 is connected to the driving tank 2, the solid-liquid separator 3 and the pump 4. It is preferable to arrange a circulation line 5 for extracting the filter cleaning liquid and circulating the extracted filter cleaning liquid to the tank 2. And by always producing a liquid flow in the filter cleaning liquid through the circulation line 5, diatomaceous earth coagulation sedimentation in the filter cleaning liquid, blockage of piping, and the like can be suppressed.

打ち込みタンク２内には、フィルタ洗浄液を流動させる攪拌手段７を備えていてもよい。攪拌手段７とは、例えば、循環ライン５に接続された底部ノズルなどが利用可能であり、底部ノズルからフィルタ洗浄液を供給することにより、フィルタ洗浄液中の沈降物を巻き上げるようにして液流を生じさせることができる。或いは、打ち込みタンク２内に攪拌機等を配置してもよい。   The driving tank 2 may be provided with stirring means 7 for flowing the filter cleaning liquid. As the stirring means 7, for example, a bottom nozzle connected to the circulation line 5 can be used. By supplying the filter cleaning liquid from the bottom nozzle, a liquid flow is generated so as to wind up the sediment in the filter cleaning liquid. Can be made. Alternatively, a stirrer or the like may be disposed in the driving tank 2.

フィルタ洗浄液は、打ち込みタンク２からポンプ４を介して引き抜かれた後、循環ライン５から抜き取りライン６を介して一部抜き取られて固液分離装置３へ投入される。固液分離装置３としては、比較的コンパクトで、処理対象物を粉体として扱える水分率である含水率５０％以下に脱水可能であり、且つ設備本体の接液部が硫酸に対する耐食性に優れた装置であることが好ましい。   The filter cleaning liquid is extracted from the driving tank 2 through the pump 4, then partially extracted from the circulation line 5 through the extraction line 6, and supplied to the solid-liquid separator 3. The solid-liquid separation device 3 is relatively compact and can be dehydrated to a moisture content of 50% or less, which is a moisture content that can treat a processing object as a powder, and the wetted part of the equipment body has excellent corrosion resistance to sulfuric acid. An apparatus is preferred.

固液分離装置３としては、フィルタープレス、真空ベルトフィルタ、オリバーフィルタ（連続式真空濾過機）、ヌッチェフィルタ、ヤングフィルタ（連続式真空濾過機）、遠心分離機などがあげられる。   Examples of the solid-liquid separation device 3 include a filter press, a vacuum belt filter, an Oliver filter (continuous vacuum filter), a Nutsche filter, a Young filter (continuous vacuum filter), and a centrifuge.

本実施形態のように珪藻土等の多孔質粒子を含む場合には、加圧や真空による脱水が有効でない場合があるため、中でも特に、処理後の固形物の含水率を低く（２８〜３２％）することが可能な遠心分離機を用いることが好ましい。固液分離で得られる固形物は製錬工程に繰り返し、ろ液を銅電解工程へ送ることができる。   When porous particles such as diatomaceous earth are included as in the present embodiment, dehydration by pressurization or vacuum may not be effective, and in particular, the moisture content of the solid after treatment is low (28 to 32%). It is preferable to use a centrifuge capable of The solid obtained by solid-liquid separation can be repeated in the smelting process, and the filtrate can be sent to the copper electrolysis process.

従来の処理設備では、銅電解槽の底抜き液とフィルタ洗浄液とを同一タンク内に保管していたためタンク内のＳｉＯ2濃度が高くなっており、これを搾殿して殿物を採取することによりＳｉＯ2濃度の高い殿物が得られていた。 In the conventional treatment equipment, the bottoms of the copper electrolyzer and the filter cleaning solution are stored in the same tank, so the SiO 2 concentration in the tank is high, and this is used to extract the temple. As a result, a deposit having a high SiO 2 concentration was obtained.

本実施形態に係る処理装置によれば、フィルタ洗浄液を、銅電解液の底抜き液とは別に保管し、固液分離処理することにより、有価金属回収工程の負荷増大の原因となる殿物中のＳｉＯ2を、殿物の中から低減することが可能となる。フィルタ洗浄液の固液分離後の固形物は製錬工程に繰り返し、ろ液を銅電解工程へ送ることが可能となる。 According to the processing apparatus according to the present embodiment, the filter cleaning liquid is stored separately from the bottom solution of the copper electrolyte, and is subjected to solid-liquid separation treatment, thereby increasing the load of the valuable metal recovery process. This makes it possible to reduce the SiO 2 in the temple. The solid after the solid-liquid separation of the filter cleaning liquid is repeated in the smelting process, and the filtrate can be sent to the copper electrolysis process.

（処理方法）
本発明の実施の形態に係るウルトラフィルタ装置のフィルタ洗浄液の処理方法は、図１に示す処理装置を用いて実施することができる。すなわち本処理方法は、ウルトラフィルタ装置１を洗浄する工程と、ウルトラフィルタ装置１の洗浄により得られるフィルタ洗浄液を固液分離する工程とを有する。以下、図２に示す銅電解工程の銅電解液及び銅電解槽の底抜き液の処理フロー例に従って図１を参照しながら説明する。 (Processing method)
The processing method of the filter cleaning liquid of the ultra filter apparatus according to the embodiment of the present invention can be carried out using the processing apparatus shown in FIG. That is, this processing method includes a step of cleaning the ultrafilter device 1 and a step of solid-liquid separating the filter cleaning liquid obtained by cleaning the ultrafilter device 1. Hereinafter, it demonstrates, referring FIG. 1 according to the process flow example of the copper electrolyte solution of the copper electrolysis process shown in FIG.

本実施形態に係る銅電解工程で発生するＳＳを含む銅電解液は、ＳＳを取り除くために、図１のウルトラフィルタ装置１へ供給され、処理される（工程Ｓ１）。ウルトラフィルタ装置１のフィルタ表面には珪藻土がプリコートされており、銅電解液中のＳＳは珪藻土の微細な孔内に捕捉される。銅電解液のフィルタ処理後はウルトラフィルタ装置１のフィルタの洗浄が行われる（工程Ｓ２）。洗浄は、上述したように、ウルトラフィルタ装置１内に洗浄液（水）を供給させてフィルタと接触させ、フィルタ洗浄液をウルトラフィルタ装置１から排出させる。フィルタ洗浄液は、打ち込みタンク２内に保管される（工程Ｓ３）。   In order to remove SS, the copper electrolyte containing SS generated in the copper electrolysis process according to the present embodiment is supplied to the ultra filter device 1 of FIG. 1 and processed (process S1). The filter surface of the ultra filter device 1 is pre-coated with diatomaceous earth, and SS in the copper electrolyte is captured in the fine pores of the diatomaceous earth. After filtering the copper electrolyte, the filter of the ultra filter device 1 is cleaned (step S2). As described above, the cleaning is performed by supplying a cleaning liquid (water) into the ultrafilter device 1 to contact the filter and discharging the filter cleaning liquid from the ultrafilter device 1. The filter cleaning liquid is stored in the driving tank 2 (step S3).

フィルタ洗浄液には、銅電解液と濾過助剤の原料である珪藻土が含まれており、液組成としては、例えば、硫酸濃度が１７０ｇ／Ｌ、銅濃度４５ｇ／Ｌ、塩素濃度５０〜６０ｍｇ／Ｌで、液比重１．２０〜１．２５、粘度０．７１ｃＰ（ｍＰａ・ｓ）で、粒度分布が４〜３００μｍ（メディアン径３８μｍ）、スラリー濃度（平均）が０．７質量％程度である。フィルタ洗浄液は静置すると沈降凝集が生じるため、打ち込みタンク２からポンプ４で引き抜いて、循環ライン５で循環させて、打ち込みタンク２内に液流を生じさせることにより、凝集沈降を抑制する。   The filter cleaning liquid contains diatomaceous earth, which is a raw material for the copper electrolyte and filter aid, and the liquid composition is, for example, a sulfuric acid concentration of 170 g / L, a copper concentration of 45 g / L, and a chlorine concentration of 50 to 60 mg / L. The liquid specific gravity is 1.20 to 1.25, the viscosity is 0.71 cP (mPa · s), the particle size distribution is 4 to 300 μm (median diameter 38 μm), and the slurry concentration (average) is about 0.7 mass%. Since the filter cleaning liquid is allowed to settle, sedimentation and aggregation occur. Therefore, the filter cleaning liquid is pulled out from the driving tank 2 by the pump 4 and circulated through the circulation line 5 to generate a liquid flow in the driving tank 2.

そして、所定のタイミングで、循環ライン５からフィルタ洗浄液を一部抜き取って、循環ライン５に接続された抜き取りライン６から固液分離装置３へ投入し、固液分離を行う（工程Ｓ４）。工程Ｓ４で得られた使用済み珪藻土を含む固形物は製錬工程へ送り、ろ液は銅電解工程に戻す。   Then, at a predetermined timing, a part of the filter cleaning liquid is withdrawn from the circulation line 5 and is introduced into the solid-liquid separation device 3 through the extraction line 6 connected to the circulation line 5 to perform solid-liquid separation (step S4). The solid substance containing the used diatomaceous earth obtained in step S4 is sent to the smelting process, and the filtrate is returned to the copper electrolysis process.

一方、銅電解槽で採取された銅電解槽の底抜き液は、殿物タンク（図示せず）に保管され、所定のタイミングで遠心分離機により殿物とろ液に分離される。殿物は有価金属回収工程へ送られ、ろ液は銅電解工程へ戻される。   On the other hand, the bottomed solution of the copper electrolytic cell collected in the copper electrolytic cell is stored in a temple tank (not shown) and separated into a temple and a filtrate by a centrifuge at a predetermined timing. The porcelain is sent to the valuable metal recovery process, and the filtrate is returned to the copper electrolysis process.

本発明の実施の形態に係るウルトラフィルタ装置のフィルタ洗浄液の処理方法によれば、ウルトラフィルタ装置１のフィルタ洗浄液を、銅電解槽の底抜き液の処理とは別に、打ち込みタンク２に保管して、固液分離するため、ウルトラフィルタ装置１に使用される濾過助剤中に含まれる珪藻土（ＳｉＯ2）を銅電解殿物に混入させなくて済む。これにより、銅電解液の殿物中のＳｉＯ2濃度を小さくすることができるため、殿物を処理する有価金属回収工程の負荷を低減することが可能となる。 According to the processing method of the filter cleaning liquid of the ultra filter device according to the embodiment of the present invention, the filter cleaning liquid of the ultra filter device 1 is stored in the driving tank 2 separately from the processing of the bottom solution of the copper electrolytic cell. Because of the solid-liquid separation, diatomaceous earth (SiO 2 ) contained in the filter aid used in the ultrafilter device 1 does not have to be mixed into the copper electrolytic deposit. Thereby, since the SiO 2 concentration in the deposit of the copper electrolyte can be reduced, it is possible to reduce the load of the valuable metal recovery process for processing the deposit.

１…ウルトラフィルタ装置
２…打ち込みタンク
３…固液分離装置
４…ポンプ
５…循環ライン
６…抜き取りライン
７…攪拌手段 DESCRIPTION OF SYMBOLS 1 ... Ultra filter apparatus 2 ... Driving tank 3 ... Solid-liquid separator 4 ... Pump 5 ... Circulation line 6 ... Extraction line 7 ... Stirring means

Claims (12)

ウルトラフィルタ装置から発生するＳｉＯ2を含むフィルタ洗浄液を流動させながら収容する打ち込みタンクと、
前記フィルタ洗浄液を固液分離する固液分離装置と、
前記打ち込みタンクから前記固液分離装置へ前記フィルタ洗浄液を送給するポンプと
を備えるウルトラフィルタ装置のフィルタ洗浄液の処理装置。 A drive-in tank for storing a filter cleaning liquid containing SiO 2 generated from the ultrafilter device while flowing;
A solid-liquid separation device for solid-liquid separation of the filter cleaning liquid;
An apparatus for processing the filter cleaning liquid of the ultra filter apparatus, comprising: a pump that feeds the filter cleaning liquid from the driving tank to the solid-liquid separator. 前記打ち込みタンク、前記固液分離装置及び前記ポンプに接続され、前記打ち込みタンク内の前記フィルタ洗浄液を引き抜いて、引き抜いた前記フィルタ洗浄液を前記打ち込みタンクへ循環させるための循環ラインを備える請求項１に記載のウルトラフィルタ装置のフィルタ洗浄液の処理装置。   2. The apparatus according to claim 1, further comprising a circulation line connected to the driving tank, the solid-liquid separator, and the pump, for extracting the filter cleaning liquid in the driving tank and circulating the extracted filter cleaning liquid to the driving tank. The processing apparatus of the filter cleaning liquid of the described ultra filter apparatus. 前記打ち込みタンク内に収容された前記フィルタ洗浄液を流動させる攪拌手段を備えることを特徴とする請求項１又は２に記載のウルトラフィルタ装置のフィルタ洗浄液の処理装置。   The processing apparatus of the filter cleaning liquid of the ultra filter apparatus according to claim 1, further comprising a stirring unit that causes the filter cleaning liquid stored in the driving tank to flow. 前記固液分離装置が、遠心分離機であることを特徴とする請求項１に記載のウルトラフィルタ装置のフィルタ洗浄液の処理装置。   The processing apparatus of the filter washing | cleaning liquid of the ultra filter apparatus of Claim 1 with which the said solid-liquid separation apparatus is a centrifuge. 前記固液分離装置で固液分離された固形物が珪藻土を含むことを特徴とする請求項１〜４のいずれか１項に記載のウルトラフィルタ装置のフィルタ洗浄液の処理装置。   The processing apparatus of the filter washing | cleaning liquid of the ultra filter apparatus of any one of Claims 1-4 with which the solid substance solid-liquid-separated by the said solid-liquid separation apparatus contains diatomaceous earth. 前記ウルトラフィルタ装置が、銅電解液を処理することを特徴とする請求項１〜５のいずれか１項に記載のウルトラフィルタ装置のフィルタ洗浄液の処理装置。   The said ultra filter apparatus processes copper electrolyte solution, The processing apparatus of the filter washing | cleaning liquid of the ultra filter apparatus of any one of Claims 1-5 characterized by the above-mentioned. ウルトラフィルタ装置を洗浄する工程と、
ウルトラフィルタ装置の洗浄により得られるフィルタ洗浄液を固液分離する工程と
を有するウルトラフィルタ装置のフィルタ洗浄液の処理方法。 Cleaning the ultra filter device;
A method for treating a filter cleaning liquid of an ultrafilter apparatus, comprising: a step of solid-liquid separation of a filter cleaning liquid obtained by cleaning the ultrafilter apparatus. 前記固液分離で得られる固形物の含水率が５０％以下となるように固液分離することを含む請求項７に記載のウルトラフィルタ装置のフィルタ洗浄液の処理方法。   The processing method of the filter washing | cleaning liquid of the ultra filter apparatus of Claim 7 including carrying out solid-liquid separation so that the moisture content of the solid substance obtained by the said solid-liquid separation may be 50% or less. 前記フィルタ洗浄液を、遠心分離機を用いて固液分離することを含む請求項７又は８に記載のウルトラフィルタ装置のフィルタ洗浄液の処理方法。   The processing method of the filter cleaning liquid of the ultra filter apparatus of Claim 7 or 8 including carrying out solid-liquid separation of the said filter cleaning liquid using a centrifuge. 前記固液分離で得られる前記固形物が珪藻土を含むことを特徴とする請求項７〜９のいずれか１項に記載のウルトラフィルタ装置のフィルタ洗浄液の処理方法。   The processing method of the filter washing | cleaning liquid of the ultra filter apparatus of any one of Claims 7-9 in which the said solid substance obtained by the said solid-liquid separation contains diatomaceous earth. 前記固液分離で得られる固形物を製錬工程に送り、ろ液を銅電解工程へ送ることを特徴とする請求項７〜１０のいずれか１項に記載のウルトラフィルタ装置のフィルタ洗浄液の処理方法。   The processing of the filter washing | cleaning liquid of the ultra filter apparatus of any one of Claims 7-10 characterized by sending the solid substance obtained by the said solid-liquid separation to a smelting process, and sending a filtrate to a copper electrolysis process. Method. 前記ウルトラフィルタ装置の洗浄により得られるフィルタ洗浄液を打ち込みタンクに収容し、前記打ち込みタンクから前記フィルタ洗浄液を抜き取って、前記打ち込みタンクへと循環させるとともに、前記打ち込みタンクから抜き取った前記フィルタ洗浄液を一部抜き取って固液分離することを含む請求項７〜１１のいずれか１項に記載のウルトラフィルタ装置のフィルタ洗浄液の処理方法。   The filter cleaning liquid obtained by cleaning the ultrafilter device is accommodated in a driving tank, the filter cleaning liquid is extracted from the driving tank and circulated to the driving tank, and part of the filter cleaning liquid extracted from the driving tank is used. The processing method of the filter washing | cleaning liquid of the ultra filter apparatus of any one of Claims 7-11 including drawing and solid-liquid separation.
JP2017087304A 2017-04-26 2017-04-26 Filter cleaning liquid processing equipment and processing method for ultra filter equipment Active JP6784640B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017087304A JP6784640B2 (en) 2017-04-26 2017-04-26 Filter cleaning liquid processing equipment and processing method for ultra filter equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2017087304A JP6784640B2 (en) 2017-04-26 2017-04-26 Filter cleaning liquid processing equipment and processing method for ultra filter equipment

Publications (2)

Publication Number Publication Date
JP2018183744A true JP2018183744A (en) 2018-11-22
JP6784640B2 JP6784640B2 (en) 2020-11-11

Family

ID=64357232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2017087304A Active JP6784640B2 (en) 2017-04-26 2017-04-26 Filter cleaning liquid processing equipment and processing method for ultra filter equipment

Country Status (1)

Country Link
JP (1) JP6784640B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110129833A (en) * 2019-05-23 2019-08-16 乐山有研稀土新材料有限公司 A kind of Rare Earth Electrolysis automatic charging equipment and its operating method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110129833A (en) * 2019-05-23 2019-08-16 乐山有研稀土新材料有限公司 A kind of Rare Earth Electrolysis automatic charging equipment and its operating method
CN110129833B (en) * 2019-05-23 2020-12-04 乐山有研稀土新材料有限公司 Automatic feeding equipment for rare earth electrolysis and operation method thereof

Also Published As

Publication number Publication date
JP6784640B2 (en) 2020-11-11

Similar Documents

Publication Publication Date Title
WO2007097046A1 (en) Method and apparatus for treating silicon particle
CN107879370A (en) The preparation method of oil-free carbonated rare earth
KR101659707B1 (en) Recovering apparatus for copper from waste water containing copper and recovering method of copper thereof
JP2001145878A (en) Foreign matter removing apparatus
JP2011528393A5 (en)
CN103130363A (en) Desalination system and desalination method
CN105668720B (en) A kind of method for treating water and device of electric flocculation and filter synchronous progress
JP6784640B2 (en) Filter cleaning liquid processing equipment and processing method for ultra filter equipment
JP6273183B2 (en) Algae recovery method and recovery equipment
CN1116448C (en) Method for treating waste liquor from final water washing tank used in cation electrodeposition painting
CN110699712B (en) Silver electrolysis process
JP5865818B2 (en) Electrodialysis apparatus and electrodialysis method
JP2014071025A (en) Solid-liquid separation method and solid-liquid separation device
TW200400159A (en) Liquid treatment method and apparatus
CN1942608B (en) Recovery of Gallium
CN105582718B (en) A kind of many fraction rosin dry method melt fat liquid filter
KR20110015761A (en) Apparatus for concentrating the sea microorganism
CN207313273U (en) A kind of photovoltaic glass deep processing water and sewage circulating treating system
CN205999228U (en) Garbage percolation liquid treating system
CN215713248U (en) Laterite-nickel ore deposit leachate processing system
CN204224371U (en) Stainless steel polishing wastewater treatment equipment
CN202766629U (en) Recovery device for electrolyte manganese dioxide filtrate
CN218491602U (en) Copper plating solution resource recovery device
CN214809098U (en) Solid-liquid separation device
KR20210017939A (en) Controllable Reusing Equipment for Washing Water of Metal Working Process by Rotated Electrolytic Ionizer and New Hydro-cyclone

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170609

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20170609

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20190328

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20190329

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20200123

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20200204

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200406

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20200707

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200717

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20200929

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20201023

R151 Written notification of patent or utility model registration

Ref document number: 6784640

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

S111 Request for change of ownership or part of ownership

Free format text: JAPANESE INTERMEDIATE CODE: R313111

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250