TWI290181B

TWI290181B - Electrolytic tank for treatment of wastewater with high-concentration cyanide

Info

Publication number: TWI290181B
Application number: TW92126815A
Authority: TW
Inventors: Chin-Kun Tu; Fong-Ru Yang; Jeng-Shyong Jean; Liang-Ruang Chang
Original assignee: Ind Tech Res Inst
Priority date: 2003-09-29
Filing date: 2003-09-29
Publication date: 2007-11-21
Also published as: TW200512316A

Abstract

An electrolytic tank for the treatment of wastewater with high-concentration cyanide, in which, at least one graphite bar and a plurality of graphite particles are as the anodes, at least one metal bar is as the cathode, the anodes and the cathodes are separated by porous insulators which are preferably tubular and surround the metal bars, respectively, and the electrolytic tank has a discharge pipe for the discharge of the noble metal powders obtained from the electrolysis of the wastewater in the tank.

Description

1290181 五、發明說明（1) 【發明所屬之技術領域】本發明有關一種含高濃度氰化物廢液的處理裝置，詳言之’是有關一種用於處理含高濃度氰化物廢液之電解槽。能夠同時達成處理含高濃度氰化物廢液及回收貴重金屬粉末之雙重目的。【先前技術】電鍍業與金屬製品加工業產生含氰化物（氰系）廢水，其特徵是廢水量大、氰化物含量低，濃度範圍1 〇〜1290181 V. INSTRUCTION DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a treatment apparatus containing a high concentration of cyanide waste liquid, and in particular relates to an electrolysis tank for treating a waste liquid containing a high concentration of cyanide . It can achieve the dual purpose of treating high-concentration cyanide waste liquid and recovering precious metal powder at the same time. [Prior Art] The electroplating industry and the metal products processing industry produce cyanide-containing (cyanide) wastewater, which is characterized by large amount of wastewater and low cyanide content, and the concentration range is 1 〇~

15 0mg/i。使用習用方法二階段式鹼性加氣化法可有效處理該種類之廢水，但是在處理階段中，易產生具有揮發性且骨性為CN之1/3強之CNC1 ’屬於危險物質，稍有不慎易危害操作人員。目前電子產業興盛’電子廢料回收業因應而生，例如錄金之印刷電路板、金手指、軟性基板、導線架、及变組件等廢料回收，需配製高濃度氰化鈉溶液並添加剝金& \ 將錢金層剝離溶解後剩下底材，再從含金之剝離液進行析與精煉回收純金。作業流程所產生之含氰化物廢液，复特徵是廢水量少、氰化物含量高，濃度範圍3, 〇〇〇〜、15 0mg/i. The two-stage alkaline gasification method can effectively treat the wastewater of this kind, but in the treatment stage, it is easy to produce CNC1 which is volatile and has a bone strength of 1/3 of CN. It is a dangerous substance, slightly Inadvertently jeopardizing the operator. At present, the electronics industry is booming. The electronic scrap recycling industry has been born. For example, the printing of printed circuit boards, gold fingers, flexible substrates, lead frames, and variable components for gold recording requires the preparation of high-concentration sodium cyanide solution and the addition of gold stripping &; \ After the gold layer is stripped and dissolved, the substrate is left, and then the gold-containing stripping solution is used for precipitation and refining to recover pure gold. The cyanide-containing waste liquid produced in the operation process is characterized by a small amount of waste water and a high cyanide content, and a concentration range of 3, 〇〇〇~,

6,00〇mg/l，且含有微量貴重金屬。若以習用’二階段式性加氣化法處理，廢液必須先稀釋約5 〇〇倍才能處理，二加用水量及成本，$時所含微量貴重金屬將混成污泥曰法问收。 7瘵有利用平板式電析槽方法進行貴金屬回收，其陰極工〇6,00 〇mg / l, and contains a trace of precious metals. If it is treated by the conventional two-stage gasification method, the waste liquid must be diluted by about 5 〇〇 to be treated first. When the water consumption and cost are added, the trace amount of precious metals contained in the mixture will be mixed into the sludge. 7瘵 There is a plate type electrolysis cell method for precious metal recovery, and its cathode work

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造成電流效率無法提。因此，亦不適用於此作面積較小，操作電流密度較高，南，此現象在低濃度範圍更趨明顯類廢水。 ” 〇有使用振盪式流體化電析槽（中華民國專利第1 45477 號’其專利權人與發明人亦為本案之申請人及發明人）於回收氰系電鍍廢液中貴金屬及破壞其氰離子的電析裝置及其^法，涉及一種陰極進行貴金屬回收，陽極進行氰離子破壞分解的一振盪式流體化電析槽及其方法。但進行規模放大廠型化時遇到了瓶頸，例如大型的振盪器須特別設計 =作，費時及成本高，且長時間負載高重量而振動，機件容易損壞；陰極析出之責重金屬粉末無法排出，必須折卸整槽石墨條清洗，操作繁複；多孔性塑膠管的孔隙會自發還原結藏金屬垢，降低電解效率，甚至使陽極與陰極發^ 接觸而短路，因此尚需要改善。【發明内容】鑑於上述，本發明之目的是提供一種用於處理含高濃度氰化物廢液之電解槽，可避免上述習知技術所遇到之$ 種問題’有效率的處理含氰化物廢水及回收貴重金屬。本發明之用於處理含高濃度氰化物廢液之電解槽，包括電解槽容器；至少一個陽極，位於該電解槽容器中，由至少一支匯電石墨棒與複數個石墨粒所組成；至少—個降極，位於該電解槽容器中，由至少一支金屬棒組成；至^ 一個多孔絕緣物，是用以防止該陽極與該陰極接觸；及_The current efficiency cannot be raised. Therefore, it is not suitable for this area, the operating current density is relatively high, and the phenomenon is more obvious in the low concentration range. 〇The use of an oscillating fluidized electrolysis cell (the Republic of China Patent No. 1 45477 'the patentee and the inventor is also the applicant and inventor of this case) recovers the precious metal and destroys the cyanide in the cyanide electroplating waste liquid. The ion electrolysis device and the method thereof relate to an oscillating fluidized electrolysis cell and a method thereof for recovering precious metal from the cathode and performing cyanide destruction and decomposition of the anode, but encountering a bottleneck when performing scale-up planting, for example, large-scale The oscillator must be specially designed to be time-consuming and costly, and it will vibrate for a long time with high weight and vibration, and the parts will be easily damaged. The metal powder of the cathode can not be discharged, and the graphite strip must be removed and cleaned, and the operation is complicated; The pores of the plastic tube spontaneously reduce the accumulated metal scale, reduce the electrolysis efficiency, and even short-circuit the anode and the cathode, and therefore need to be improved. SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a treatment for An electrolytic cell containing a high concentration of cyanide waste liquid can avoid the problem of the above-mentioned prior art, and the efficient treatment of cyanide-containing Waste water and recovery of precious metals. The invention relates to an electrolytic cell for treating a high concentration cyanide waste liquid, comprising an electrolytic cell container; at least one anode, located in the electrolytic cell container, by at least one collecting graphite rod and a plurality of Graphite particles; at least one descending pole, located in the cell container, consisting of at least one metal rod; to a porous insulator to prevent the anode from contacting the cathode;

1290181 五、發明說明（3) 排放管，其用以排放該使用本以電解方式可進行氰離原析出，底達成處理含放流水標準具有低污染大，具有極具有至少一電解槽中電發明之用於處理含高濃子之氧化分部排放管可高濃度氰化及回收貴重、低成本、高產業價值個支管解析出處理含度氰化解，陰間隔性物廢液金屬粉高回收連通於電解槽容器底部，是之貴重金屬粉末。南濃度氛化物廢液之電解槽物廢液時，於電解槽之陽極極可進行貴重金屬離子之還排出貴重金屬粉末，而同時至環境保護署（EPA)製訂之末之雙重目的。故本發明極率、操作容易，工業用途廣【實施為顯易懂本一電解而十腐I虫一支以時的陽堆積中佳為20 佳具有棒（1 3 ) 電位適方式】明之上述和其他目的、特徵、和優點能更明，參考第1及2圖作詳細說明如下：之用於處理含局濃度氰化物廢液之槽容器（1 0 )，形妝另戸斗叮分 ^ &狀及尺寸可依所需而定，較佳選用的材料，例如PVC塑膠等等。電解槽容器中有至少 ^的匯電石墨棒（11)及複數個石墨粒（12)組成電解 Ό各匯電石墨棒分開插置在複數個石墨粒形成的 ^石墨粒接觸而可電相連。棒匯電石墨棒的直徑較 mm及石墨粒的含碳量較佳為g 8至丨〇〇重量％及較边徑0· 2至10· 〇mm。電解槽容器中有至少一個金屬做為陰極，金屬棒氧 ^ ^ 知了為例如選用耐腐蝕及氧化還原且電解物之電解的材質，例如不鏽鋼管、鍍銥鈦管1290181 V. INSTRUCTIONS (3) Discharge pipe, which is used for discharging the use of the present invention, can be cyanide-precipitated by electrolysis, and has a low pollution level with the bottom discharge treatment standard, and has at least one electrolytic cell in the invention. It can be used to treat high-concentration oxidizing fraction discharge pipe, which can be used for high-concentration cyanidation and recovery of valuable, low-cost, high-industry value. The branch is treated with cyanide solution, and the high-recovery of waste metal powder At the bottom of the cell container is a precious metal powder. In the case of the electrolysis tank waste liquid of the concentration liquid in the south, the precious metal ions can be discharged from the anode of the electrolysis tank to discharge the precious metal powder, and at the same time, to the double purpose of the end of the Environmental Protection Agency (EPA). Therefore, the invention has the advantages of extreme rate, easy operation, and wide industrial use. [The implementation is easy to understand. The electrolysis of the ten rots and the worms of the worms are good. The best is 20 good with a good (1 3) potential mode] And other purposes, features, and advantages can be more clearly described with reference to Figures 1 and 2 as follows: The tank container (10) for treating the cyanide waste liquid containing the local concentration, the shape of the makeup and the other buckets are divided into ^ The shape and size can be determined as desired, and the preferred materials are, for example, PVC plastic. At least one of the electroconductive graphite rods (11) and the plurality of graphite particles (12) constitute electrolysis. Each of the converging graphite rods is inserted into the graphite particles formed by a plurality of graphite particles to be electrically connected. The diameter of the rod-shaped graphite rod is smaller than that of mm and the carbon content of the graphite particles is preferably g 8 to 丨〇〇 by weight and the side diameter is from 0.2 to 10 · 〇 mm. The electrolytic cell container has at least one metal as a cathode, and the metal bar oxygen is known as, for example, a material which is resistant to corrosion and redox and electrolytic electrolysis, such as a stainless steel tube or a rhodium-plated titanium tube.

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ί等。選用不鑛鋼管時，外徑可為例如2G至6Gmm。各金屬ί et al. When a non-mineral steel pipe is selected, the outer diameter may be, for example, 2G to 6Gmm. Various metals

0 ?而而疋，但須互相隔離，本發明中使用多孔絕緣物（14)防止陽極與陰極的接觸，例如使用管狀多孔絕緣物將金屬棒環繞在管中達成與石墨棒及石墨粒隔離之目的。但是電解液（廢液）仍可經由絕緣物上的孔洞自由流動在陰極與陽極之間，達到電解之目的。此多孔絕緣物可選用夕孔性塑膠管，例如具有外徑3 〇至丨2 〇mm及孔徑2 〇至2 5 〇之多孔性塑膠管，材質可為pE、pp、或pvDF塑膠等等三電解時，金屬（尤其是貴重金屬）會在陰極（例如不鏽，官上）析出，但因陰極形狀、沉積的厚度及水流的沖擊專因素’使彳于/儿積的金屬脫離不鏽鋼管以粉末狀往下沉降’因此如圖所示，本發明尚包括一排放管（丨7 )以排放該電解槽中電解析出之貴重金屬粉末。排放管可具有至少一個支管（16)連通於該電解槽容器底部，較佳直接連通金屬棒（13)(陰極）所在之管狀多孔絕緣物（14)，因此不會收集到石墨殘渣，而便利於收集析出之貴重金屬粉末。排放管可為外徑為5 0至1 5 0 mm，傾斜度5至6 0度，材質可為例如壓克力、PP、或PVC等等。0, but 疋, but must be isolated from each other, the present invention uses a porous insulator (14) to prevent the anode from contacting the cathode, for example, using a tubular porous insulator to surround the metal rod in the tube to separate from the graphite rod and the graphite particles. purpose. However, the electrolyte (waste liquid) can still flow freely through the holes in the insulator between the cathode and the anode for the purpose of electrolysis. The porous insulator can be selected from a sinusoidal plastic tube, for example, a porous plastic tube having an outer diameter of 3 〇 to 2 〇 mm and a pore diameter of 2 〇 to 25 〇, and the material can be pE, pp, or pvDF plastic, etc. During electrolysis, metals (especially precious metals) are precipitated at the cathode (for example, stainless, officially), but due to the shape of the cathode, the thickness of the deposit, and the impact of the water flow, the metal is removed from the stainless steel tube. The powder settles down. Thus, as shown, the present invention also includes a discharge pipe (丨7) for discharging the precious metal powder which is electrically resolved in the electrolytic cell. The discharge pipe may have at least one branch pipe (16) communicating with the bottom of the electrolytic vessel vessel, preferably directly connected to the tubular porous insulation (14) where the metal rod (13) (cathode) is located, so that graphite residue is not collected, and the convenience is facilitated. The precipitated precious metal powder is collected. The discharge pipe can have an outer diameter of 50 to 150 mm and a slope of 5 to 60 degrees, and the material can be, for example, acrylic, PP, or PVC.

本發明之用於處理含高濃度氰化物廢液之電解槽更可包括一進流口（ 2 0 )，較佳位於電解槽容器（1 〇 )的底部，做為電解液（即，廢液）之入口，入口處可設置過濾裝置，例如球形過濾網（2 1 )，防止石墨渣及其他殘渣流出孔外。在電解槽容器（1 0 )的頂部可設置至少一個溢流裝置，在溢流The electrolytic cell for treating a high concentration cyanide waste liquid of the present invention may further comprise an inlet port (20), preferably located at the bottom of the cell tank (1 〇), as an electrolyte (ie, waste liquid) At the entrance of the inlet, a filtering device, such as a spherical filter (2 1 ), may be provided at the inlet to prevent graphite slag and other residues from flowing out of the hole. At least one overflow device may be provided at the top of the electrolytic cell vessel (10), in the overflow

1290181 五、發明說明（5) 處可設置過濾、裝置，例如球形過濾、網（2 4 )，而溢流槽（2 5 ) 貯存溢流的電解液（廢液），再由溢流孔（26)排放，較佳是設置迴流裝置，使溢流液經由溢流管（27 )、再經由電解槽底部的進流口（ 2 0 )迴流至電解槽容器（1 0 )中。排放管的支管（1 6 )與管狀多孔絕緣物（1 4 )之銜接連通，可使用例如塑膠由任（union)(15a)達成。排放管（1 7 )的上端管口進一步可利用例如一端封閉的由任（15b)蓋住，下端可裝置一排液閥（22)，可將廢液排放，以及裝置一閥（2 3 )(例如蝶閥）以供貴重金屬粉末的排放收集。1290181 V. INSTRUCTIONS (5) Filters and devices such as spherical filters and nets (2 4 ) can be installed, while overflow tanks (25) store the overflowing electrolyte (waste liquid) and then overflow holes ( 26) Discharge, preferably by providing a reflux device, such that the overflow liquid is returned to the electrolytic cell vessel (10) via the overflow pipe (27) and through the inlet (20) at the bottom of the electrolytic cell. The branch pipe (16) of the discharge pipe is in communication with the tubular porous insulation (14) and can be achieved, for example, by a plastic (15a). The upper end of the discharge pipe (17) can be further covered by, for example, one end (15b), the lower end can be equipped with a drain valve (22), the waste liquid can be discharged, and the device is a valve (2 3 ) (eg butterfly valves) for the collection of precious metal powder emissions.

利用本發明之用於處理含高濃度氰化物廢液之電解槽進行廢液電解時之流程如下述：The flow of the waste liquid electrolysis using the electrolytic cell of the present invention for treating a liquid mixture containing a high concentration of cyanide waste liquid is as follows:

含高濃度氰化物廢液自循環貯槽以泵浦抽送，經廢液經由進流口（ 2 0 )及球型過濾網（2 1 )進入電解槽（丨〇 )，於電解槽（1 0 )的陽極（匯電石墨棒（1 1 )及石墨粒（丨2 ))將廢液所含氰離子（CN-)進行氧化分解成N2與C〇2，於電解槽（1{J)的陰極（不鏽鋼管（13))將廢液所含微量貴重金屬離子例如，农金、鈀、銀、銅等，還原析出成貴重金屬粉末，掉落到貴重金屬粉末排放管（丨7 )。每隔一段時間，先開啟底部排液閥（22)( 口徑例如為3/4 ")，將電解槽（1〇)内廢液排空，再開啟蝶閥（23)(例如口徑4 〃），將貴重金屬粉末排出收 ^廢液彳火電解槽（1 〇)的底部進入，由下往上擴散，經電解槽（10)頂部的球型過濾網（24)流到溢流槽（2 經流孔（2㈧及溢流管（27)流回循環貯槽，如此形成循^電凰The high-concentration cyanide waste liquid is pumped from the circulating storage tank, and the waste liquid enters the electrolytic tank (丨〇) through the inlet port (20) and the spherical filter (2 1 ) in the electrolytic cell (10) The anode (conducting graphite rod (1 1 ) and graphite particles (丨2)) oxidatively decomposes the cyanide ion (CN-) contained in the waste liquid into N2 and C〇2 at the cathode of the electrolytic cell (1{J) (Stainless steel tube (13)) reduces the amount of precious metal ions contained in the waste liquid, such as agricultural gold, palladium, silver, copper, etc., into a precious metal powder, and drops it to the precious metal powder discharge pipe (丨7). At regular intervals, first open the bottom drain valve (22) (for example, 3/4 "), empty the waste liquid in the electrolytic cell (1〇), and then open the butterfly valve (23) (for example, caliber 4 〃) The precious metal powder is discharged into the bottom of the waste smoldering electrolysis cell (1 〇), diffused from bottom to top, and flows through the spherical filter (24) at the top of the electrolytic cell (10) to the overflow tank (2 The flow hole (2 (eight) and the overflow pipe (27) flow back to the circulating storage tank, thus forming a loop

12901811290181

可-tn處理之含高濃度氰化物廢液’其氰化物濃度叮间達約8,〇〇〇mg/L ，較佳之氰化物濃度範圍為 3’ OOOmg/L至6, 000mg/L 。氰化物去除效率可達99 %。以下列實施例更進_步說明本發明。實施例請參閱第1及2圖所示，本發明之用於處理含高濃度氰化物廢液之電解槽，該電解槽容器（1〇)的是厚度8mm的pvc 塑膠圓桶，直徑78cm、高90 cm。容器内部包含三支匯電石墨棒（11)置入複數個石墨粒（1 2 )合併作為電解槽的工作陽極，導電石墨棒（11)的直徑05〇_、長度84cm，複數個石墨粒的含碳成份99·7%、粒度〜3 〇_、數量2〇〇 kg。谷為又包含六支不鏽鋼管（13)作為電解槽的工作陰極，不鏽鋼管（13)的材質為SUS3〇4、外徑042· 7mm、厚度 2.0 mm、長度86cm。每支不鏽鋼管（13)的外圍各套有多孔性塑膠管（14)，藉以將陽極（石墨粒12)與陰極（不鏽鋼管 1 3 )隔開’多孔性塑膠管（1 4 )的材質為pe塑膠、外徑0 7 0 · 4mm、厚度6. 5mm、長度84cm、孔徑Θ0微米。於電解槽容器 (10)的底部，每支多孔性塑膠管（14)的正下方出口，各焊接有2 · 5 塑膠由任（1 5 )及一小段塑膠短管（1 6 )，再將各小段塑膠短管（1 6 )'焊接匯集成一支傾斜1 &度的貴重金屬粉末排放管（1 7 )，完成本發明之用於處理含高濃度氰化物廢液之電解槽。使用本發明處理含高濃度氰化物之廢液，電解時間、The high concentration cyanide waste liquid which can be treated with -tn has a cyanide concentration of about 8, 〇〇〇mg/L, and preferably has a cyanide concentration ranging from 3' OOOmg/L to 6,000mg/L. Cyanide removal efficiency can reach 99%. The invention is further illustrated by the following examples. For the embodiment, please refer to the electrolyzers for treating high-concentration cyanide waste liquid according to the first and second figures. The electrolytic cell container (1〇) is a pvc plastic drum with a thickness of 8 mm and a diameter of 78 cm. 90 cm high. The inside of the container contains three sets of graphite rods (11) and a plurality of graphite particles (1 2 ) are combined to serve as the working anode of the electrolytic cell. The diameter of the conductive graphite rod (11) is 05〇_, the length is 84cm, and the plurality of graphite particles are The carbon content is 99.7%, the particle size is ~3 〇_, and the quantity is 2〇〇kg. The valley contains six stainless steel tubes (13) as the working cathode of the electrolytic cell. The stainless steel tube (13) is made of SUS3〇4, outer diameter of 042·7 mm, thickness of 2.0 mm, and length of 86 cm. Each of the stainless steel tubes (13) is provided with a porous plastic tube (14), thereby separating the anode (graphite particles 12) from the cathode (stainless steel tube 13). The material of the porous plastic tube (1 4 ) is Pe plastic, outer diameter 0 7 0 · 4mm, thickness 6. 5mm, length 84cm, aperture Θ 0 microns. At the bottom of the electrolytic cell container (10), the outlet directly below each porous plastic tube (14) is welded with 2 · 5 plastics (1 5 ) and a short plastic short tube (16), and then Each of the small sections of plastic short tubes (16) is welded to form a tilted 1 & precious metal powder discharge pipe (17) to complete the electrolytic cell of the present invention for treating a high concentration cyanide waste liquid. Using the present invention to treat a waste liquid containing a high concentration of cyanide, electrolysis time,

1290181 ___ 五、發明說明（7) 電壓、電流、溫度、廢液迴流速率等操作條件及氰化物濃度如表1所示。結果顯示，氰化物濃度高達3, 82Omg/1的廢液1,200公升，經電解2天後，氰化物濃度降至0.25mg/l，可達到EPA的放流水標準（氰化物1. 0 mg/1 )。表1 天數第1天第2天第3天第4天取樣時間 09 ： 00 16 : 00 09 : 00 16 ： 00 09 ： 00 16 ： 00 09 ： 00 16 ： 00 樣品編號 AD9 A16 BQ9 Β16 009 C16 D09 D16 電壓(V) 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 電流(A) 390 440 460 450 440 440 440 420 溫度(°C) 22 28 35 34 29 31 29 30 迴流速率 (Unin) 30 30 30 30 30 30 30 30 氣錄雜 (CN^mg^) 3,820 1β80 112 1.64 0.25 0.24 0.24 0.23 雖然本發明已以較佳實施例揭露如上，然其並非用以限定本發明。任何熟習此技藝者，在不脫離本發明之精神1290181 ___ V. INSTRUCTIONS (7) Operating conditions such as voltage, current, temperature, and waste liquid recirculation rate and cyanide concentration are shown in Table 1. The results showed that the cyanide concentration was up to 3, 82Omg / 1 of waste liquid 1,200 liters, after 2 days of electrolysis, the cyanide concentration was reduced to 0.25mg / l, can reach the EPA discharge water standard (cyanide 1. 0 mg / 1 ). Table 1 Day 1 Day 2 Day 3 Day 4 Sampling Time 09 : 00 16 : 00 09 : 00 16 : 00 09 : 00 16 : 00 09 : 00 16 : 00 Sample No. AD9 A16 BQ9 Β16 009 C16 D09 D16 Voltage (V) 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 Current (A) 390 440 460 450 440 440 440 420 Temperature (°C) 22 28 35 34 29 31 29 30 Reflow rate (Unin) 30 30 30 30 30 30 30 30 gas recording (CN^mg^) 3,820 1β80 112 1.64 0.25 0.24 0.24 0.23 Although the invention has been disclosed above in the preferred embodiments, it is not intended to limit the invention. Anyone skilled in the art without departing from the spirit of the invention

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0718-10430TWF(Nl);P10920017;part:c：2.ptd 第13頁 1290181 __ 圖式簡單說明第1圖為本發明之用於處理含高濃度氰化物廢液之電解槽一實施例之示意圖。第2圖為第1圖之本發明之用於處理含高濃度氰化物廢液之電解槽一實施例之頂視圖。圖式符號說明： 1 0〜電解槽容器 1 1〜匯電石墨棒 1 2〜石墨粒 1 3〜金屬棒（例如，不鏽鋼管） 1 4〜多孔絕緣物（例如，多孔性塑膠管） 15a〜由任(union ) 1 5 b〜一端封閉之由任（u n i ο η ) 16〜支管 1 7〜排放管 2 0〜進流口 2卜球型過濾網 2 2〜排液閥 23〜閥（例如，蝶閥） 2 4〜球型過濾網 2 5〜溢流槽 2 6〜溢流孔 2 7〜溢流管0718-10430TWF(Nl);P10920017;part:c:2.ptd Page 131290181 __ BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of an embodiment of an electrolytic cell for treating a waste liquid containing a high concentration of cyanide according to the present invention. . Fig. 2 is a top plan view of an embodiment of the present invention for treating an electrolytic cell containing a high concentration of cyanide waste liquid of Fig. 1. Schematic diagram description: 1 0 ~ electrolytic cell container 1 1 ~ sinking graphite rod 1 2 ~ graphite particles 1 3 ~ metal rod (for example, stainless steel tube) 1 4 ~ porous insulation (for example, porous plastic tube) 15a~ By any (union) 1 5 b~ one end closed by any (uni ο η ) 16 ~ branch pipe 1 7 ~ discharge pipe 2 0 ~ inlet port 2 ball type filter 2 2 ~ drain valve 23 ~ valve (for example , butterfly valve) 2 4 ~ ball filter 2 5 ~ overflow tank 2 6 ~ overflow hole 2 7 ~ overflow tube

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Claims

1290181· 六、申請專利範圍 1. 一種用括下列：1290181· VI. Scope of application for patents 1. One type includes the following:

於處理含高濃度氰化物廢液之電解槽，其包槽容器；個陽極，位於該電解槽容器中，由至電石墨棒與複數個石墨粒所組成，個陰極，位於該電解槽容器中，由至一電解至少支匯至少屬棒組成；支金個多孔絕緣物，用以防止該陽極與該陰極接一排放管’具有至少—個支管連通於該電解槽容器底放該電解槽中電解析出之責重金屬粉末。 -請專利範圍第1項所述之用於處理含高濃度氰電解槽，其中該匯電石墨棒之直徑為20至第1項所述之用於處理含高濃度氰中該石墨粒含碳量為98至100重量％ 0mm 〇第1項所述之用於處理含高濃度氰中該金屬棒為不鏽鋼管。第4項所述之用於處理含高濃度氰中該不鏽鋼管外徑為2〇至6〇隱。第1項戶斤述之用於處理含高濃度氣中該多孔絕緣物為多孔性塑膠管。第6項戶斤述之用於處理含尚濃度氣至少觸；及部，用以排 2. 如申化物廢液之 80mm 〇 3. 如申化物廢液之及具有粒徑 4. 如申化物廢液之 5 ·如申化物廢液之 6.如申化物廢液之 7 ·如申請專利範圍電解槽，其為0· 2至1 〇. 請專利範圍電解槽，其請專利範圍電解槽，其請專利範圍電解槽，其請專利範目For treating an electrolytic cell containing a high concentration of cyanide waste liquid, the sump container; an anode located in the electrolytic cell container, consisting of a conductive graphite rod and a plurality of graphite particles, and a cathode located in the electrolytic cell container At least one branch of the electrolysis consists of at least a rod; a gold porous insulator is provided to prevent the anode from being connected to the cathode and the discharge pipe has at least one branch pipe connected to the bottom of the electrolytic cell container and placed in the electrolytic cell. Electrically resolved to blame the metal powder. - The invention relates to the treatment of a high concentration cyanide electrolytic cell according to the first aspect of the patent, wherein the graphite graphite rod has a diameter of 20 to 1 for treating the graphite particle containing carbon with a high concentration of cyanide The amount is 98 to 100% by weight and 0 mm. The metal rod according to Item 1 for treating high-concentration cyanide is a stainless steel tube. The stainless steel tube having a high concentration of cyanide as described in item 4 has an outer diameter of 2 〇 to 6 〇. The first item is used to treat high-concentration gas. The porous insulator is a porous plastic tube. The sixth item is used to treat at least the gas containing the concentration of the gas; and the part is used to discharge 2. For example, the 80mm of the Shenhua waste liquid 〇 3. If the Shenhua waste liquid has a particle size of 4. Waste liquid 5 · Such as Shenhua waste liquid 6. Such as Shenhua waste liquid 7 · If the application scope of the electrolytic cell, it is 0 · 2 to 1 〇. Please patent range electrolytic cell, its patent range electrolytic cell, It invites the patent range electrolysis cell, which invites patents

0718-10430TlVF(Nl);P10920017;partic: 第15貢 I29018L· _ 六、申請專利範圍 "~— 化物廢液之電解槽，其中該多孔絕緣物為具有外徑3 〇至 120mm及孔徑20至250 "R!之多孔性塑膠管。 8 ·如申請專利範圍第6項所述之用於處理含高濃度氰化物廢液之電解槽，其中該多孔絕緣物為ρΕ、ρρ、或pVDF 材質之多孔性塑膠管。 9.如申請專利範圍第1項所述之用於處理含高濃度氰化物廢液之電解槽，其中該排放管外徑為5 〇至1 5 0mm，傾斜度5至6 0度。0718-10430TlVF(Nl);P10920017;partic: 15th tribute I29018L· _6, application patent scope "~- hydride waste cell, wherein the porous insulator has an outer diameter of 3 〇 to 120 mm and a pore diameter of 20 to 250 "R! Porous plastic tube. 8. The electrolytic cell for treating a waste liquid containing a high concentration of cyanide as described in claim 6 wherein the porous insulating material is a porous plastic tube of ρΕ, ρρ, or pVDF. 9. The electrolytic cell for treating a high concentration cyanide waste liquid according to claim 1, wherein the discharge pipe has an outer diameter of 5 〇 to 150 mm and a slope of 5 to 60 degrees.

1 〇·如申請專利範圍第1項所述之用於處理含高濃度氰化物廢液之電解槽，其中該排放管為壓克力、PP、或PVC 材質。 1 1 ·如申請專利範圍第1項所述之用於處理含高濃度氰化物廢液之電解槽，其中該電解槽容器具有一底部進流孔及至少一個頂部溢流裝置。 1 2·如申請專利範圍第11項所述之用於處理含高濃度氰化物廢液之電解槽，其中該底部進水孔及該溢流裝置皆安裝球型過濾網。 1 3 ·如申請專利範圍第11項所述之用於處理含高濃度氰化物廢液之電解槽，其中更包栝一迴流裝置，使在該頂部溢流裝置溢流出的廢液由該底部進水孔迴流至該電解槽容器中。1 〇 The electrolytic cell for treating a high concentration cyanide waste liquid as described in claim 1, wherein the discharge pipe is made of acrylic, PP, or PVC. 1 1 The electrolytic cell for treating a high concentration cyanide waste liquid according to claim 1, wherein the electrolytic cell container has a bottom inlet hole and at least one top overflow device. 1 2. The electrolytic cell for treating a high concentration cyanide waste liquid according to claim 11, wherein the bottom water inlet hole and the overflow device are provided with a spherical filter. 1 3 · The electrolytic cell for treating a high concentration cyanide waste liquid according to claim 11, wherein a reflux device is further included, so that the waste liquid overflowing from the top overflow device is from the bottom The inlet port is returned to the cell container.

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