CN1223696A - Metal magnesium electrolyzer - Google Patents
Metal magnesium electrolyzer Download PDFInfo
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- CN1223696A CN1223696A CN 97195967 CN97195967A CN1223696A CN 1223696 A CN1223696 A CN 1223696A CN 97195967 CN97195967 CN 97195967 CN 97195967 A CN97195967 A CN 97195967A CN 1223696 A CN1223696 A CN 1223696A
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- electrolyzer
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Abstract
A multibath metal Mg electrolyzer which produces metal Mg in a plurality of electrolytic cells. The current efficiencies of the electrolytic cells are improved and the unit power cost is lowered. In order to send C12 gas which is a by-product in the electrolytic cells to a refining apparatus, the gas is sucked from the electrolytic cells by a blower provided in a main pipe. Automatic valve are provided in branch pipes which are branched out of the main pipe and to which C12 gas is introduced from the electrolytic cells. The automatic valves are of gate-type and their positioners are of pneumatic driving.controlling type. The section pressures of C12 gas from the electrolytic cells are measured and the openings of the automatic valves are automatically controlled so that the measured pressure may be target values.
Description
Technical field
The present invention relates to from the melting salt that contains magnesium chloride, generate the metal magnesium electrolyzer of MAGNESIUM METAL, particularly use a plurality of electrolyzers and the multiple groove metal magnesium electrolyzer of the disposable suction strainer of chlorine of by-product in each electrolyzer by electrolysis.
Background technology
From the melting salt that contains magnesium chloride, generating in the industrial metal magnesium eletrolysis device of MAGNESIUM METAL by electrolysis, use a plurality of electrolyzers, each electrolyzer is worked simultaneously, generates MAGNESIUM METAL.At this moment, in each electrolyzer, along with generating MAGNESIUM METAL, also by-product chlorine produces.The filtration device that the chlorine of by-product is set in being responsible in each electrolyzer carries out disposable suction strainer by arm, thereby is sent in the chlorine purification apparatus.
In this metal magnesium electrolyzer with a plurality of electrolyzers, with the suction strainer pressure-controlling of the chlorine in each electrolyzer at-10～0mmH
2O (0.1～0kPa) weak negative pressure, for improve current efficiency, to reduce kiowatt consumption very important.In case because suction strainer pressure becomes big, the ratio that atmosphere is sneaked in the electrolyzer will increase, thereby make current efficiency reduce.
Yet, because existing apparatus does not carry out indivedual negative pressure controls to each electrolyzer, so the suction strainer pressure of the chlorine in each electrolyzer is not controlled in-10～0mmH
2Between the O, so current efficiency is low.
The object of the present invention is to provide a kind of by each electrolyzer being carried out indivedual negative pressure controls, the multiple groove metal magnesium electrolyzer that current efficiency is improved.
The announcement of invention
As the method that the suction strainer pressure of chlorine in each electrolyzer is controlled individually, once considered in each electrolyzer, filtration device to be set, or filtration device is set in the person in charge and self-acting valve is being set from being responsible between each arm of ramose, yet, the method of filtration device is set in each electrolyzer, because the pipeline complexity is not so good.But,, also be not easy indivedual negative pressure of each electrolyzer are controlled even adopt the method that self-acting valve is set between each arm.The reasons are as follows.
Also produce pulverous muriate when in each electrolyzer, producing chlorine.Because this muriate is trapped in the pipeline, so must do pipeline configuration simply.By each electrolyzer of the disposable suction strainer of filtration device of being arranged among the person in charge also is this purpose.Method as one side each electrolyzer of disposable suction strainer is controlled individually the suction strainer pressure of each electrolyzer on one side is provided with self-acting valve in addition in arm.But as in the suction strainer pipeline of chlorine valve being set, at valve and can adhere to muriate on every side, the time, not long valve just can not be worked.Therefore, in conventional device, even will control indivedual negative pressure of each electrolyzer, also be not easy to implement, its result must cause current efficiency to reduce.
Therefore, the present inventor is for being provided with under the situation of self-acting valve in each arm, prevents that each self-acting valve is chlorinated the countermeasure that thing stops up and studies.The result shows that the self-acting valve of bar gate type is not easy to be chlorinated thing and stops up.In addition, self-acting valve has air driven or electrodynamictype feedback assembly in order to control the folding degree.Even but the feedback assembly of air driven, its control mode is under the situation of normally used automatically controlled standard, also can be subjected to influence, cause that action is bad, therefore will use air driven air control type feedback assembly from the magnetic field that big electric power produced of supplying with electrolyzer.
To achieve these goals, metal magnesium electrolyzer of the present invention has a plurality of electrolyzers that generate MAGNESIUM METAL by electrolysis from the melting salt that contains magnesium chloride, with in order to take out a plurality of electrolyzers the chlorine of by-product when generating MAGNESIUM METAL from electrolyzer, by being arranged on the filtration device among the person in charge, by from being responsible for a plurality of arms of ramose, the a plurality of electrolyzers of disposable suction strainer, and the gas exhausting device of self-acting valve and the suction strainer pressure that detects chlorine in a plurality of electrolyzers is set in each arm respectively, and each detecting pressure is controlled at target value, be arranged on the control device of the control self-acting valve folding degree in each arm.
Here said self-acting valve preferably uses sluice valve.The bar gate type self-acting valve is used for the valve of slurry pipeline etc. more.Its structure is kept out of the way out from pipeline the gate for the valve that intersects with pipeline resembles when the opening.Because this structure, though slurry attached on the valve, this dirt settling also can leak down by pipeline when valve is open.
The pressure lock that self-acting valve is preferably controlled by air pressure by air pressure driving folding and folding driving amount.
Gas exhausting device, preferably the chlorine that will take out from a plurality of electrolyzers is delivered in the chlorine purification apparatus.
The target value of the suction strainer pressure of the chlorine in a plurality of electrolyzers is preferably in-10～0mmH
2Between the O.
From being responsible for a plurality of arms of ramose, preferably tilt to constitute towards being responsible for to descend.In this case, the decline rake that is preferably in arm is provided with self-acting valve.In addition, in the junction of the person in charge, preferably be provided with and collect the dust storage tank that powder is used with arm.
Brief description of drawings
Fig. 1 is the gas delivery system of an embodiment of expression metal magnesium electrolyzer of the present invention and the mode chart that is arranged on the Controlling System of the self-acting valve in the gas delivery system.
Fig. 2 is the mode chart of the detailed structure of expression electrolyzer and Controlling System.
Most preferred embodiment of the present invention
According to Fig. 1 and Fig. 2 embodiments of the invention are described below.
As shown in Figure 1, metal magnesium electrolyzer of the present invention has a plurality of electrolyzers 1,1 ...Each electrolyzer 1 as shown in Figure 2, by the magnesium chloride in anode and the catholyte melting salt 2.
By electrolysis, the MAGNESIUM METAL of the molten state that negative electrode produces, through influx 5 float over melting salt 2 above, form molten magnesium layer 6.And be responsible for 8 suction strainers through arm 7 at the chlorine that anode produces, be sent to the chlorine purification apparatus through being responsible for 8 again.For with electrolyzer 1,1 ... disposable suction strainer is provided with the blower 9 as filtration device in the purification apparatus ingress of being responsible for 8.
In metal magnesium electrolyzer of the present invention, to a plurality of electrolyzers 1,1 ... in the suction strainer pressure of chlorine control individually.
In order to reach above-mentioned control, the pressure warning unit 10 of the suction strainer pressure that detects chlorine is set in each electrolyzer 1, the chlorine that produces in each electrolyzer imports in the person in charge 8 the arm 7, and the self-acting valve 11 of the bar gate type with air actuation air control type feedback assembly is set.Connection section the arm 7 and the person in charge 8 is provided with dust storage tank 12.Arm 7 is the decline heeling condition towards dust storage tank 12, and self-acting valve 11 is arranged on the right on of dust storage tank 12.So-called dust storage tank 12 is used for accumulating the Powdered muriatic container that produces with chlorine exactly.
By the suction strainer pressure of pressure warning unit 10 detected chlorine, send Personal Computer to by the accommodometer 13 of feedback assembly of control self-acting valve 11.Personal Computer to all suction strainer pressure-controlling at-10～0mmH
2Target value in the O (for example-4mmH
2O) actuating quantity of needed feedback assembly calculates one by one, then to accommodometer 13,13 ... send instruction.Accommodometer 13,13 ... the instruction of sending according to Personal Computer 14 is to pairing self-acting valve 11,11 ... feedback assembly carry the control signal that produces by pressure variation.
Metal magnesium electrolyzer of the present invention with said structure, by to a plurality of electrolyzers 1,1 ... the corresponding self-acting valve 11,11 that is provided with ... the control of feedback assembly, with electrolyzer 1,1 ... in chlorine suction strainer pressure-controlling in the ideal value of minimum negative pressure or near its ideal value.Therefore, in electrolyzer, avoid atmosphere to sneak into as far as possible, improve current efficiency.In addition, the solution water plane of melting salt 2 is controlled to a certain degree also can improves current efficiency.This is because it can suitably keep the bath convection current in the electrolyzer.
Because self-acting valve 11,11 ... be bar gate type, so can suppress to stop up valve with the Powdered muriate that chlorine produces.Therefore but long-time continuous is used.In addition, because self-acting valve 11,11 ... feedback assembly be air actuation air control type, so can not be subjected to electrolyzer 1,1 ... the influence in the magnetic field of employed big electric power, but feedback assembly works better.Also because with a plurality of electrolyzers 1,1 of a blower 9 disposable suction strainers ... so tubing system is simple.Like this, be difficult to the electrolyzer 1,1 that carries out in the past ... the control of indivedual negative pressure become possibility, the result, current efficiency is improved.
In metal magnesium electrolyzer of the present invention, because arm 7 is obliquely installed towards being responsible for 8 declines, so can avoid muriate to be trapped in the arm 7 effectively, because the connection section the arm 7 and the person in charge 8 is provided with dust storage tank 12, this device can be collected the muriate through arm 7, therefore can avoid muriate to be trapped in effectively and be responsible in 8.And self-acting valve 11 is arranged on the decline rake of arm 7, therefore, can further avoid the obstruction of self-acting valve 11 effectively.
In existing metal magnesium electrolyzer, though electrolyzer 1,1 ... the controlling valu of middle chlorine suction strainer pressure is set in-10～0mmH
2(in the scope of 0.1～0kPa) broad, the elimination factor of its controlling valu reaches 50%～75% to O, and unit of current consumption reaches 10310kWH/T.And metal magnesium electrolyzer of the present invention, although the controlling valu of chlorine suction strainer pressure is set in-4mmH
2O (certain value 0.09kPa), the effusion rate of controlling valu but reaches 25%, the result, unit of current consumption is improved as 10185kWH/T.Current efficiency improves 1%.
Industrial utilizability
As mentioned above, metal magnesium electrolyzer of the present invention can be carried out a plurality of electrolytic cells Indivedual suction strainers are controlled, and can guarantee the long-term stability of the employed automatic valve of unit control Work, thus the suction strainer pressure of each electrolytic cell can be controlled at minimum desirable negative pressure, thus, Current unit consumption is reduced greatly. Therefore, metal magnesium electrolyzer of the present invention, Can generate at a low price magnesium metal, and then help to reduce take this magnesium metal as raw material, by The manufacturing cost of titanium (Ti), zirconium (Zr) etc. is made in Kroll process industry.
Claims (8)
1. metal magnesium electrolyzer, it is characterized in that, it has a plurality of electrolyzers that generate MAGNESIUM METAL by electrolysis from the melting salt that contains magnesium chloride, chlorine with by-product when from a plurality of electrolyzers, take out generating MAGNESIUM METAL, by being arranged on the filtration device among the person in charge, by from being responsible for a plurality of arms of ramose, the a plurality of electrolyzers of disposable suction strainer, and the gas exhausting device of self-acting valve is set respectively in each arm, and the suction strainer pressure that detects chlorine in a plurality of electrolyzers, each detecting pressure is controlled at target value, be arranged on the control device of the control self-acting valve folding degree in each arm.
2. metal magnesium electrolyzer as claimed in claim 1 is characterized in that self-acting valve is a sluice valve.
3. metal magnesium electrolyzer as claimed in claim 1 or 2 is characterized in that, moving valve is that folding is driven by air pressure, and its folding driving amount is by the air type valve of air pressure control.
4. as each described metal magnesium electrolyzer in the claim 1～3, it is characterized in that the chlorine that gas exhausting device will take out is transported in the chlorine purification apparatus from a plurality of electrolyzers.
5. as each described metal magnesium electrolyzer in the claim 1～4, it is characterized in that the suction strainer pressure target value of the chlorine in a plurality of electrolyzers is at-10～0mmH
2Between the O.
6. as each described metal magnesium electrolyzer in the claim 1～5, it is characterized in that,, be the decline heeling condition towards the person in charge from being responsible for a plurality of arms of ramose.
7. metal magnesium electrolyzer as claimed in claim 6 is characterized in that, is provided with self-acting valve at the decline rake of arm.
8. as claim 6 or 7 described metal magnesium electrolyzers, it is characterized in that,, be provided with the dust storage tank of collecting dust in the junction of the person in charge with arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97195967 CN1223696A (en) | 1997-04-30 | 1997-04-30 | Metal magnesium electrolyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97195967 CN1223696A (en) | 1997-04-30 | 1997-04-30 | Metal magnesium electrolyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1223696A true CN1223696A (en) | 1999-07-21 |
Family
ID=5179484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97195967 Pending CN1223696A (en) | 1997-04-30 | 1997-04-30 | Metal magnesium electrolyzer |
Country Status (1)
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|---|---|
| CN (1) | CN1223696A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101589180B (en) * | 2006-12-21 | 2011-04-06 | 丹尼利克里斯技术服务有限公司 | Apparatus and method for removal of gasses |
| WO2012122893A1 (en) * | 2011-03-16 | 2012-09-20 | 青海北辰科技有限公司 | Automatic temperature control device for magnesium electrolytic cell |
| CN105624741A (en) * | 2014-10-31 | 2016-06-01 | 云南新立有色金属有限公司 | Automatic electrolytic cell liquid level control device |
| CN110219024A (en) * | 2019-07-11 | 2019-09-10 | 胡洪江 | Reaction type aluminium cell smoke evacuation control pressurer system |
| CN114317966A (en) * | 2022-01-14 | 2022-04-12 | 新疆湘晟新材料科技有限公司 | Arrangement method of reduction distillation device and magnesium electrolytic cell device for titanium sponge production |
-
1997
- 1997-04-30 CN CN 97195967 patent/CN1223696A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101589180B (en) * | 2006-12-21 | 2011-04-06 | 丹尼利克里斯技术服务有限公司 | Apparatus and method for removal of gasses |
| WO2012122893A1 (en) * | 2011-03-16 | 2012-09-20 | 青海北辰科技有限公司 | Automatic temperature control device for magnesium electrolytic cell |
| CN105624741A (en) * | 2014-10-31 | 2016-06-01 | 云南新立有色金属有限公司 | Automatic electrolytic cell liquid level control device |
| CN105624741B (en) * | 2014-10-31 | 2018-06-19 | 云南冶金新立钛业有限公司 | Electrolytic cell liquid level automatic control device |
| CN110219024A (en) * | 2019-07-11 | 2019-09-10 | 胡洪江 | Reaction type aluminium cell smoke evacuation control pressurer system |
| CN114317966A (en) * | 2022-01-14 | 2022-04-12 | 新疆湘晟新材料科技有限公司 | Arrangement method of reduction distillation device and magnesium electrolytic cell device for titanium sponge production |
| CN114317966B (en) * | 2022-01-14 | 2023-08-18 | 新疆湘晟新材料科技有限公司 | Arrangement method of reduction distillation device and magnesium electrolytic tank device for producing titanium sponge |
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| C06 | Publication | ||
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |