A kind of stirring-type is fluoridized electrolyzer
Technical field
The utility model includes the technical field of the electrolyzer of dynamo-electric chemosynthesis, relates in particular to a kind of stirring-type and fluoridizes electrolyzer.
Background technology
The organic fluorocompound nature exists few, and how fluorine being introduced becomes the problem that people are badly in need of solving in organism, and the preparation of organic fluoride can be used F
2Directly fluoridize, also available XeF
2, the fluorination reagent such as Hydroxyl fluoride, high-valency metal fluorochemical, the N2F compounds method of indirectly fluoridizing.These chemical fluorination process, reaction and operation are all more complicated, and the comparison in equipment that needs is harsh; The fluorination reagent toxicity of using is high or be absolutely unsafe, and what have is very expensive; And wayward fluorine adding content, be difficult to obtain target product.Therefore, people have to seek other method.Americanized scholar Simons had invented electrochemical fluorination (ECF) method in 1941, produce perfluor or partially fluorinated organic compound, such as full-fluorine octyl sulfuryl fluoride, perfluoro butyl sulfonic acid fluoride, perfluoro triethylamine etc., its invention is for a brand-new and marvellous approach has been opened up in the preparation of fluorocarbon.Initial Simons method is in the steel electrolyzer of rectangle or circle, one group of nickel anode and iron cathode pole plate to be installed alternately, adds anhydrous hydrogen fluoride and a small amount of organism, and logical direct current carries out electrolysis.Electrolyzer external application cooling jacket is removed the heat that produces in electrolytic process.Usually bath voltage is 5V-8V, and current density is greater than 500A/dm2, and temperature range is 0 ℃-9 ℃.With this understanding, F
2Can not overflow, fluorinated product generates at anode.The fluorochemical that generates is owing to being insoluble to anhydrous hydrogen fluoride, or is deposited on bottom of electrolytic tank, or is gas phase and evaporates in cold-trap and be collected.But traditional electrolyzer has following shortcoming: the HF in groove does not flow, and the ionogen and the pole plate contact probability that are dissolved in HF are little, therefore the electrofluorination reaction efficiency is low; Reaction electrofluorination decomposition induction time is long, is generally 3 days-5 days, and dead groove phenomenon is more frequent, after making alive, and the no current input.
The utility model content
For defects and the problem of prior art, the utility model provides a kind of electrofluorination reaction efficiency to do; Reaction electrofluorination decomposition induction time is short, and a kind of stirring-type that can reduce dead groove phenomenon is fluoridized electrolyzer.
in order to achieve the above object, the utility model provides following technical scheme: a kind of stirring-type is fluoridized electrolyzer, by motor, shaft coupling, stir shaft, shaft seal, electrode column, electrode bundle, electrolyzer, reduction cell cover plate, the electrolyzer chuck, axle sleeve, blind plate, guide shell, stirring rake, insulating washer forms, reduction cell cover plate covers on electrolyzer, electrolyzer arranges discharge port and opening for feed, the discharge port place arranges bleeder valve, the electrolyzer chuck is arranged on the outside surrounding of electrolyzer and bottom, the electrolyzer chuck arranges refrigerant import and refrigerant exit, shaft coupling is connected motor with stir shaft, stir shaft passes reduction cell cover plate by shaft seal, after being connected, electrode bundle in electrode column and electrolyzer is fixed on reduction cell cover plate, separate with insulating washer with cover plate, the positive pole that electrode column comprises and negative pole, positive pole and the negative pole of corresponding connection electrode bundle, electrode bundle is anodal according to conventional nickel, iron negative pole alternative arrangement, just, adopt insulating trip to separate between negative pole, electrode bundle is between guide shell outer wall and electrolyzer inwall, evenly arrange around guide shell, guide shell is fixed on reduction cell cover plate, and guide shell middle part arranges 2-4 openings in the following barrel of electrolysis liquid surface position, and the guide shell bottom arranges 2-4 mouths, the guide shell bottom arranges blind plate, in the middle of blind plate, axle sleeve is set, stirring rake is positioned at guide shell, and stir shaft is connected with stirring rake.
In technique scheme, described electrolyzer and reduction cell cover plate are circle or rectangular configuration.
In technique scheme, described electrode bundle is wall circular, evenly arrange two groups, three groups or multi-group electrode bundle outside guide shell, and the pole plate of the electrode bundle centerline direction of arranging is consistent with the normal of guide shell.
In technique scheme, set out gas port on described reduction cell cover plate.
Preferred technical scheme arranges thermal insulation layer outside described electrolyzer chuck.
Preferred technical scheme also comprises thermometer, set temperature meter fixing port on the cell wall cover plate, and liquid level meter one end passes from reduction cell cover plate, and an other end is positioned at electrolyzer.
Preferred technical scheme also comprises liquidometer, and electrolyzer wallboard By Electrolysis cell wall plate upper and lower end vertically arranges respectively the fixing port of two liquidometers, and the liquidometer pipe adopts transparent fluorine to mould pipe.
Preferred technical scheme also comprises leg, and leg is arranged on bottom of electrolytic tank, and quantity arranges three or four.
a kind of stirring-type that the utility model provides is fluoridized electrolyzer, make material dissolve in whole system and disperse more even, carry out simultaneously fluoridation in electrolyzer, reduced decomposition induction time, decomposition induction time reduced to one day from 3-5 days, also basically stopped dead groove phenomenon, minimizing is because of the number of times of the clear groove of handling dead groove, the in the past annual dead groove of employing shunt slot 3-4 time, after adopting the utility model shunt slot, dead groove phenomenon does not occur, reduce supplies consumption more than 20%, single groove output improves 30%, the polymkeric substance that generates in electrolyzer reduces, one times of clear groove time lengthening, alleviated artificial clear groove labour intensity.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the utility model example structure schematic diagram.
Fig. 2 is embodiment electrode bundle distributed architecture schematic diagram.
Fig. 3 is the guide shell structural representation.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
According to Fig. 1, Fig. 2, shown in Figure 3, as preferred embodiment, a kind of stirring-type is fluoridized electrolyzer, is comprised of motor 1, shaft coupling 2, stir shaft 3, shaft seal 4, electrode column 5, leg 6, electrode bundle 7, liquid level meter 8, electrolyzer 9, reduction cell cover plate 10, electrolyzer chuck 11, axle sleeve 12, blind plate 13, guide shell 14, stirring rake 15, insulating washer 16, thermal insulation layer 17, thermometer 18.
The motor 1 of electrolyzer adopts the general still step-down gear of electric drilling match, 10-150 rev/mins of rotating speeds, and according to stirring the circulation of elecrolyte number of times, the utility model embodiment is set to 3 and turns-20 rev/mins, also can install control module additional this motor speed is controlled.
Electrolyzer 9 is circle or rectangular configuration with reduction cell cover plate 10, adopts low-carbon steel material to make; Reduction cell cover plate 10 covers on electrolyzer 9, and electrolyzer arranges discharge port 91 and opening for feed 92, and the discharge port place arranges bleeder valve 93; Opening for feed 91 is imports of electrolytic solution and material, and leg 6 is arranged on bottom of electrolytic tank, and three or four legs of operated by rotary motion are used for electrolyzer is positioned over ground, also can adopt hanger that electrolyzer is positioned on operator's console; Discharge port 92 is discharge ports of the product of electrofluorination reaction, and discharge port adopts the bend pipe convenient operation, controls discharging with bleeder valve 93.
Electrolyzer chuck 11 is arranged on the outside surrounding of electrolyzer and bottom, and electrolyzer chuck 11 arranges refrigerant import 111 and refrigerant exit 112; Refrigerant import 111 and refrigerant exit 112 are import and export of electrolyzer chuck 11 refrigerants, the heat that refrigerant adopts general chilled brine or organic refrigerant to take away electrolytic reaction, be used for controlling electrolyte temperature in electrolyzer, general electrolysis temperature is controlled between-10 ℃-19 ℃; Electrolyzer chuck 11 outsides have one layer of heat preservation layer 17 to reduce the cold loss of refrigerant.
Shaft coupling 2 is connected motor connection with stir shaft.Stir shaft 3 passes reduction cell cover plate by shaft seal 4, and stir shaft can not leak in atmosphere by hydrogen fluoride in the shaft seal 4 maintenance electrolyzers on reduction cell cover plate.
Be fixed on reduction cell cover plate 10 after electrode bundle 7 in electrode column 5 and electrolyzer is connected, separate with insulating washer 16 between electrode column 5 and reduction cell cover plate.
According to shown in Figure 2, the positive pole that electrode column 5 comprises and negative pole, positive pole and the negative pole of corresponding connection electrode bundle 7, electrode bundle is anodal according to conventional nickel, iron negative pole alternative arrangement, adopt tetrafluoroethylene pad mutually insulated between positive and negative electrode, being arranged in parallel separates, and electrode bundle is evenly arranged around guide shell between guide shell outer wall and electrolyzer inwall.Electrode bundle is wall circular, evenly arrange two groups, three groups or multi-group electrode bundle outside guide shell, the pole plate of the electrode bundle centerline direction of arranging is consistent with the normal of guide shell, electrode bundle magnitude setting and interval, the electrolytic solution that guarantees to stir is under the effect that stirring arm 15 promotes, by the gap of electrode bundle.
According to shown in Figure 3, guide shell 14 is cylinders that are fixed on reduction cell cover plate, and guide shell is fixed on and can guarantees on reduction cell cover plate that agitator is consistent with the gap of guide shell; Guide shell 14 middle parts arrange 2-4 openings 141 in the following barrel of electrolysis liquid surface position, the size of opening is as the criterion can guarantee the internal circulating load that the electrolytic solution overflow enters guide shell, guide shell 14 bottoms arrange 2-4 openings 142, opening direction faces the direction of electrode bundle 7 center, circulates by the electrode bundle gap after electrolytic solution flows out 142 from opening and gets back to opening 141; Guide shell 14 bottoms arrange blind plate 13, and axle sleeve 12 is set in the middle of blind plate 17, and the spindle nose of stir shaft 3 can rotate and can reduce the swing of stir shaft 3 in axle sleeve 16, and the setting of blind plate does not simultaneously affect the precipitation of high fluorine product in electrolyzer; Stirring rake 15 is positioned at guide shell, and stir shaft 3 is connected with stirring rake 15, promotes electrolytic solution during stirring rake 15 rotation and flows at the electrolyzer internal recycle.Electrolytic reaction by stirring with in electrolyzer as the anhydrous hydrogen fluoride of solvent and reaction reagent be dissolved in that in hydrogen fluoride, organic residue cycling flows, thereby increase the contact probability of material and pole plate, the electrofluorination reaction efficiency is improved greatly, also make the interior heat transfer efficiency of electrolyzer improve greatly.
Liquid level meter 8 is used to refer to the liquid level of electrolyzer electrolyte inside, and thermometer 18 is used for measuring the temperature of electrolytic solution; The fixing port of thermometer on reduction cell cover plate, thermometer one end passes from reduction cell cover plate, and the other end of liquid level meter or thermometer is positioned at electrolyzer; Electrolyzer wallboard By Electrolysis cell wall plate upper and lower end vertically arranges respectively the fixing port of two liquidometers, and the liquidometer pipe adopts transparent fluorine to mould pipe.
Setting out gas port 101 on reduction cell cover plate, is the outlet of discharging the hydrogen that electrolysis produces, and is also that the outlet of gaseous products and the hydrogen fluoride taken out of can be collected after condensation, adopts the condenser of industry routine to be back to electrolyzer; Also a refluxing opening can be set separately on the cover board, discharge the hydrogen of electrolysis generation or the hydrogen fluoride that gaseous products is taken out of in order to collection.
The utility model adopts the stirring rake in guide shell, under the effect of stirring rake, make material initiatively enter in guide shell by the import 141 of guide shell, flow out from exporting 142, dissolving and dispersion is more even in whole system, and material carries out fluoridation in electrolyzer simultaneously, has reduced decomposition induction time, the liquid product of gained flows out from the bleeder valve 93 of discharge port and discharge port setting, and gaseous product evaporates into cold-trap from the air outlet and is collected.。
The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion by described protection domain with claim.