CN2791070Y - Automatic controller for closed loop electrolytic silver recovery - Google Patents
Automatic controller for closed loop electrolytic silver recovery Download PDFInfo
- Publication number
- CN2791070Y CN2791070Y CN 200520090903 CN200520090903U CN2791070Y CN 2791070 Y CN2791070 Y CN 2791070Y CN 200520090903 CN200520090903 CN 200520090903 CN 200520090903 U CN200520090903 U CN 200520090903U CN 2791070 Y CN2791070 Y CN 2791070Y
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- voltage
- electrolytic
- microprocessor
- silver
- closed loop
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- Expired - Fee Related
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- Water Treatment By Electricity Or Magnetism (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The utility model relates to an automatic controller for closed loop electrolytic silver recovery, which comprises a voltage output circuit. The utility model is characterized in that the voltage output circuit is connected with a voltage regulator; the control end of the voltage regulator is connected with a microprocessor which controls electrolytic voltage output value; an input opening of the microprocessor is connected with an electrolytic current and electrolytic voltage sampling loop. The utility model has the characteristic that the controller has the closed loop intelligent control function, and reflects the concentration and the electrolytic speed of silver ion in fixing solution through the change of the electrolytic current and the electrolytic voltage; the microprocessor controls the size of the output voltage and current and switches the control method; under the guarantee of the quality of recovery silver, the component of the fixing solution can not be damaged, and the fixed solution can be recovered and utilized; the electric energy is saved; the cost is low.
Description
Technical field the utility model relates to a kind of automatic control system, particularly a kind of closed loop electrolyzing silver recovery two-position controller that utilizes electrolytic process to reclaim silver ions in the silver-containing liquid waste.
Background technology is utilized the silver ions in electrolytic process recovery silver-containing liquid waste such as the wasted fixing solution, and electric current, the voltage exported by controller control are constant, and increase or the minimizing with silver ion content do not change, and influences 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 is to provide a kind of closed loop electrolyzing silver recovery two-position controller, it can change and automatic output electrolysis voltage and the electrolytic speed regulated with silver ion content in the waste liquid, thereby guarantees to reclaim silver-colored quality and do not destroy the stop bath composition.
The purpose of this utility model is achieved in that a kind of closed loop electrolyzing silver recovery two-position controller, comprise voltage follower circuit, it is characterized in that on voltage follower circuit, being connected with voltate regulator, 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 utility model is that the magnitude of voltage that the electrolysis voltage that gather in the voltage sample loop is used for setting with microprocessor is compared, and the voltage of microprocessor output is changed in the scope of setting; 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 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.
Characteristics of the present utility model are: 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 schematic circuit diagram of the present utility model.
Embodiment is done further auspicious stating below in conjunction with accompanying drawing to the utility model:
As shown in Figure 1, closed loop electrolyzing silver recovery two-position controller, its voltage follower circuit is to be made of rectifier (1) and wave filter (2), the one output terminal is connected with anode electrolytic cell, and another output terminal is connected with the negative electrode (5) of electrolyzer through sampling resistor R1, the reometer A of voltate regulator (3), reflection output voltage.Voltate regulator is high power valve NTE248, the control utmost point of voltate regulator is connected with microprocessor (4) output terminal by resistance R 2, microprocessor is the micro-chip of 51 models, the two ends of sampling resistor 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 (6), 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 ", and 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 (1)
1, a kind of closed loop electrolyzing silver recovery two-position controller, comprise voltage follower circuit, it is characterized in that on voltage follower circuit, being connected with voltate regulator, 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 200520090903 CN2791070Y (en) | 2005-05-19 | 2005-05-19 | Automatic controller for closed loop electrolytic silver recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090903 CN2791070Y (en) | 2005-05-19 | 2005-05-19 | Automatic controller for closed loop electrolytic silver recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2791070Y true CN2791070Y (en) | 2006-06-28 |
Family
ID=36807144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520090903 Expired - Fee Related CN2791070Y (en) | 2005-05-19 | 2005-05-19 | Automatic controller for closed loop electrolytic silver recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2791070Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110438529A (en) * | 2019-09-05 | 2019-11-12 | 广西铟泰科技有限公司 | High purity indium preparation facilities |
| CN115552056A (en) * | 2020-05-12 | 2022-12-30 | 艾思玛太阳能技术股份公司 | Method for operating an electrolyzer, connecting circuit, rectifier and electrolysis installation for carrying out said method |
-
2005
- 2005-05-19 CN CN 200520090903 patent/CN2791070Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110438529A (en) * | 2019-09-05 | 2019-11-12 | 广西铟泰科技有限公司 | High purity indium preparation facilities |
| CN115552056A (en) * | 2020-05-12 | 2022-12-30 | 艾思玛太阳能技术股份公司 | Method for operating an electrolyzer, connecting circuit, rectifier and electrolysis installation for carrying out said method |
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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: 20060628 Termination date: 20120519 |