CN2801815Y - Closed ring type silver recovery electrolysis device - Google Patents
Closed ring type silver recovery electrolysis device Download PDFInfo
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- CN2801815Y CN2801815Y CN 200520090902 CN200520090902U CN2801815Y CN 2801815 Y CN2801815 Y CN 2801815Y CN 200520090902 CN200520090902 CN 200520090902 CN 200520090902 U CN200520090902 U CN 200520090902U CN 2801815 Y CN2801815 Y CN 2801815Y
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- electrolyzer
- negative electrode
- closed loop
- electrolysis
- silver recovery
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Abstract
The utility model relates to a closed ring type silver recovery and electrolysis device. A liquid inlet and a liquid outlet of an electrolysis slot are communicated with a liquid circulation system. A cathode and an anode in the electrolysis slot are fixedly arranged. The liquid inlet of the electrolysis slot is communicated with a cyclone mechanism arranged in the electrolysis slot. The utility model has the characteristic that the fixed cathode and the anode are used, and thus the contact resistance is small; the fluid enters the electrolysis slot to generate vortex through a cyclone device, the liquid is sufficiently contacted with the cathode, and thus the electrolysis effect is good, which prevents the cathode surface from being polarized; the utility model has simple structure, compact structure and small volume; the controller has the closed loop intelligent control function, the quality of recovered silver is good, the component of fixing solution is not damaged, the fixing solution can be recovered and utilized, the electric energy is saved and the cost is low.
Description
Technical field the utility model relates to a kind of equipment that utilizes electrolytic process to reclaim silver, particularly a kind of closed loop silver recovery electrolyzer that reclaims silver from argyrol.
Background technology is utilized the silver in the electrolytic process recovery waste liquid, as with the silver recovery in the sensitization wasted fixing solution, the negative electrode of its electrolyzer and anode are to adopt rotary structure, rotation by two electrodes is stirred the liquid in the electrolyzer, and it can fully be contacted with liquid, silver ions can be deposited on the negative electrode equably.The problem that this structure exists is: complex structure, and dynamic resistance is big, and electrolysis voltage is wayward, and current consumption is big; Electric current, the voltage of slave controller output are constant, can not change with the increase or the minimizing of silver ion content, influence the desilver effect, and the silver amount of recovery is relatively poor.Particularly destroy the composition of argentiferous stop bath, can not be recycled, cause waste.
The summary of the invention the purpose of this utility model be to provide a kind of simple in structure, save the energy, reclaim the closed loop silver recovery electrolyzer of good, the useless recyclable utilization of body of quality of silver.
The purpose of this utility model is achieved in that a kind of closed loop silver recovery electrolyzer, comprise electrolyzer, pilot circuit, the fluid inlet, the liquid outlet that it is characterized in that electrolyzer are connected with fluid circulation system, negative electrode in the electrolyzer and anode are for fixedly installing, and the fluid inlet of the electrolyzer eddy flow mechanism interior with being located at groove is connected.
Described eddy flow mechanism is a cyclone pipe, and an end of cyclone pipe is communicated with the electrolyzer fluid inlet, and the other end shutoff is arranged with water outlet on the tube wall.
Described negative electrode is connected with power supply by the negative electrode contactor that is made of contactor segment and connected screw rod.
Described negative electrode is arc or the cylindrical female pole plate that is located at anode external.
Electrolyzer is the right cylinder of sealing, is located at anode screw rod in the groove and stretches out from its top with power supply and be connected, and negative electrode contactor screw rod stretches out with power supply from its sidewall and is connected.
Described pilot circuit is connected with voltate regulator on its voltage output loop, and the control end of voltate regulator is connected with the microprocessor of control electrolysis voltage output valve, and the input aperture of microprocessor is connected with the electrolysis voltage sampling circuit with Faradaic current.
The electrolyzer that the utility model provides, its electrolyzer is the cell body of sealing, it is connected with fluid circulation system, realizes circulating of liquid.Flowing fluid is that cyclone pipe enters in the electrolyzer by eddy flow mechanism, posticum on the cyclone pipe can make liquid tangentially flow out, form the eddy flow that rotation is risen, the mobile stirring action that played of liquid, make liquid fully to contact with negative electrode, current density is big, improves the sedimentation speed of silver ions on negative electrode, the electrolytic efficiency height.Simultaneously can also prevent to produce polarization phenomena because of the reduction of concentration of silver ions.Negative electrode in the electrolyzer adopts contactor to be connected with power supply, and contactor closely contacts with negative electrode, and fiting effect is good, and contact resistance is little, guarantees the reliability of negative electrode work.In the pilot circuit, compare with the magnitude of voltage that microprocessor is set, the voltage of microprocessor output is changed in the scope of setting by the electrolysis voltage that gather in the voltage sample loop; The Faradaic current of current sampling circuit collection is used for reflecting the concentration of silver-containing liquid waste silver ions, the concentration of silver ions height, and electric current is big; Concentration of silver ions is low, and then electric current is little.This electric current surpasses or is lower than the Faradaic current value that microprocessor is set simultaneously, and the master mode of microprocessor can be switched, and is converted into standby mode or electrolysis mode by electrolysis mode or standby mode.Equipment is separated out silver too much because of short circuit or electrolysis, and electric current surpasses the electric current alarming value, and equipment alarm is till fixing a breakdown.
Characteristics of the present utility model are: adopt fixed negative electrode and anode, and can keep excellent contact between the power supply, contact resistance is little; The liquid that circulates enters in the electrolyzer by swirler, produces eddy flow in groove, plays the effect of stirring, and liquid can fully contact with negative electrode, and electrolysis effectiveness is good, prevents the cathode surface polarization, power saving; Adopt the closed electrolysis groove of cylindricality and the recycle system rationally to be provided with, this device simple in structure, compact, volume is little; Controller has closed loop intelligent control function, concentration and electrolytic speed by silver ions in the variation reflection stop bath of Faradaic current, voltage, size and switching controls pattern by microprocessor control output voltage, electric current, make electrolyzer be in best electrolytic speed all the time, guarantee that the electrolytic speed and the speed of separating out of silver are complementary, the quality that obtains silver is good.When the silver content in the waste liquid was lower than certain value, controller can change master mode again automatically, makes it be in standby mode simultaneously, and the stop bath composition is not destroyed, and stop bath can be recycled, and saved electric energy, reduced cost.
Description of drawings Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model electrolyzer;
Fig. 3 is the broken section enlarged view of Fig. 2;
Fig. 4 is the utility model pilot circuit schematic diagram.
Embodiment is done further auspicious stating below in conjunction with accompanying drawing to the utility model:
As shown in Figure 1, 2, it is to be used with sheet-punching machine that present embodiment provides closed loop silver recovery electrolyzer, is used for reclaiming the silver of sensitization wasted fixing solution, and stop bath is recycled.Electrolyzer (1) can be one or more mutual serial connection, and what of electrolyzer can be determined according to treatment capacity.The fluid inlet of electrolyzer (2) is connected sheet-punching machine not shown in the figures through bend pipe (3), by-pass valve (4), feed liquor transparent tube (5), recycle pump (6) with the sheet-punching machine washing tank for films.The liquid outlet of electrolyzer (7) is connected with the sheet-punching machine washing tank for films through bend pipe (8), by-pass valve (9), fluid transparent tube (10), forms the closed-loop process system that liquid circulation is flowed.Cylindrical electrolyzer is the groove that is made of sealing cell body (11) and groove lid (12), is provided with sealing-ring (13) between cell body and the groove lid, and groove covers and is provided with fluid inlet and liquid outlet, connects wash water valve (14) on the cell body bottom blow-down mouth.The anode bar (15) that adopts graphite material to make is located at the centre of groove, and the anode screw rod stretches out outside the groove through the groove lid and is connected with supply lead, and is fixing by hold-down nut (16).The cylindrical female pole piece (17) that is located at anode external adopts stainless material to make, and negative electrode is connected with power supply by the negative electrode contactor.The negative electrode contactor is to be made of contactor segment (18) and the screw rod (19) integrally welded with it, sees Fig. 3.Screw rod is connected with nut (20) after cell wall stretches out abuts against on the negative electrode contactor segment.Be located at the interior cyclone pipe (21) of electrolyzer and be connected with fluid inlet, the bottom shutoff of cyclone pipe is symmetrical arranged the water outlet (22) that two rows arrange along the length direction of pipe on the tube wall.
The control device of closed loop silver recovery electrolyzer, its voltage follower circuit is to be made of rectifier (23) and wave filter (24), the one output terminal is connected with anode electrolytic cell, and another output terminal is connected with the negative electrode (17) of electrolyzer through sampling resistor R1, the reometer A of voltate regulator (25), reflection output voltage.Voltate regulator is high power valve NTE248, the control utmost point of voltate regulator is connected with microprocessor (26) output terminal by resistance R 2, microprocessor is the micro-chip of 51 models, the two ends of sampling resistor R1 are connected with two input apertures of microprocessor, and the electric pathway that is formed by negative electrode, sampling resistor R1, the microprocessor of electrolyzer is the sampling circuit of Faradaic current.The negative electrode of electrolyzer is connected with the input aperture of microprocessor respectively with anode (15), forms the electrolysis voltage sampling circuit.Controller is controlled electrolysis voltage by monitoring bath voltage and electric current, and reaches " electrolysis " two kinds of operating mode formation closed loop intelligent control by " standby ",
Concrete control flow is as follows:
1, standby mode: the operational mode the when concentration of silver ions in the electrolyzer waste fixer solution is lower than certain numerical value.Being provided with of this pattern can prevent to continue when concentration of silver ions is lower than certain numerical value electrolysis stop bath is damaged, and guarantees that the stop bath behind the desilver can the recirculation utilization, also saves electric energy simultaneously.Under " standby " pattern, microprocessor output electrolysis voltage V1 is intermittent type output, is used for producing voltage V2 and electric current A, reflects with the concentration of stop bath silver ions by electric current A, determines whether concentration of silver ions can reach the electrolysis requirement.Increase when microprocessor detects the electric current that flows through stop bath, when surpassing the low current value of setting, microprocessor can switch to electrolysis mode by standby mode.
2, electrolysis mode: be the operational mode when concentration of silver ions reaches certain value in the stop bath.Microprocessor output this moment electrolysis voltage V1, the voltage V1 of output will guarantee that bath voltage V2 is in certain scope.The Faradaic current A that microprocessor detects changes along with the variation of concentration of silver ions, and concentration of silver ions is high more, used electric current big more (maximum set value is 5A).Microprocessor is regulated electrolysis voltage V1 automatically according to the size that the rising or the reduction of concentration of silver ions is electric current, make electrolyzer be in best electrolytic speed all the time, to guarantee that the electrolytic speed and the speed of separating out of silver are complementary, like this, the lasting controllable adjustment characteristic of electrolysis voltage guarantee to Chemical Composition cause destructive minimum, and can reach simultaneously maximum (safety) electrolytic speed.Along with separating out of silver-colored simple substance, the concentration of silver ions in the stop bath reduces, and intelligent controller electrolysis voltage V1 reduces, drop to the set(ting)value of programming up to monitoring voltage V2, simultaneously, electric current A also reduces to set(ting)value, and microprocessor can automatically switch to standby mode by electrolysis mode.
Claims (6)
1, a kind of closed loop silver recovery electrolyzer, comprise electrolyzer, pilot circuit, the fluid inlet, the liquid outlet that it is characterized in that electrolyzer are connected with fluid circulation system, and negative electrode in the electrolyzer and anode are for fixedly installing, and the fluid inlet of the electrolyzer eddy flow mechanism interior with being located at groove is connected.
2, closed loop silver recovery electrolyzer according to claim 1 is characterized in that described eddy flow mechanism is a cyclone pipe, and an end of cyclone pipe is communicated with the electrolyzer fluid inlet, and the other end shutoff is arranged with water outlet on the tube wall.
3, closed loop silver recovery electrolyzer according to claim 1 is characterized in that described negative electrode is connected with power supply by the negative electrode contactor that is made of contactor segment and connected screw rod.
4, closed loop silver recovery electrolyzer according to claim 1 is characterized in that described negative electrode is arc or the cylindrical female pole plate that is located at anode external.
5, closed loop silver recovery electrolyzer according to claim 1 is characterized in that electrolyzer is the right cylinder of sealing, is located at anode screw rod in the groove and stretches out with power supply from its top and be connected, and negative electrode contactor screw rod stretches out with power supply from its sidewall and is connected.
6, closed loop silver recovery electrolyzer according to claim 1, it is characterized in that described pilot circuit, be connected with voltate regulator on its voltage output loop, the control end of voltate regulator is connected with the microprocessor of control electrolysis voltage output valve, and the input aperture of microprocessor is connected with the electrolysis voltage sampling circuit with Faradaic current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090902 CN2801815Y (en) | 2005-05-19 | 2005-05-19 | Closed ring type silver recovery electrolysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090902 CN2801815Y (en) | 2005-05-19 | 2005-05-19 | Closed ring type silver recovery electrolysis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2801815Y true CN2801815Y (en) | 2006-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520090902 Expired - Fee Related CN2801815Y (en) | 2005-05-19 | 2005-05-19 | Closed ring type silver recovery electrolysis device |
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| Country | Link |
|---|---|
| CN (1) | CN2801815Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886271B (en) * | 2009-05-15 | 2011-10-19 | 邓涛 | Rotational-flow electrolysis method and device thereof |
| CN102560537A (en) * | 2012-03-09 | 2012-07-11 | 哈尔滨工业大学 | Silver recovery device for silver-containing waste liquor |
-
2005
- 2005-05-19 CN CN 200520090902 patent/CN2801815Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886271B (en) * | 2009-05-15 | 2011-10-19 | 邓涛 | Rotational-flow electrolysis method and device thereof |
| CN102560537A (en) * | 2012-03-09 | 2012-07-11 | 哈尔滨工业大学 | Silver recovery device for silver-containing waste liquor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060802 Termination date: 20120519 |