CN113957489B - Method and device for stabilizing working condition of electrolytic manganese cell - Google Patents
Method and device for stabilizing working condition of electrolytic manganese cell Download PDFInfo
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- CN113957489B CN113957489B CN202111455610.7A CN202111455610A CN113957489B CN 113957489 B CN113957489 B CN 113957489B CN 202111455610 A CN202111455610 A CN 202111455610A CN 113957489 B CN113957489 B CN 113957489B
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/30—Electrolytic production, recovery or refining of metals by electrolysis of melts of manganese
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
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Abstract
The invention discloses a method and a device for stabilizing working conditions of an electrolytic manganese electrolytic tank, wherein the electrolytic tank is provided with a liquid level controller, a thermometer, a liquid inlet, a liquid outlet, a flowmeter respectively, a liquid inlet controller and a pH value meter, wherein the pH value meter is matched with the electrolytic tank to monitor the flow rate of electrolyte, the liquid level height, the tank temperature and the working conditions of the pH value of the electrolyte in real time, the working conditions of the electrolyte are found abnormal in time, and the working conditions of the electrolytic tank are regulated in real time to maintain a relatively stable state; namely, the production process is regulated by detecting data of flow, liquid level height, bath temperature and pH value of electrolyte; when the temperature of the electrolytic tank is higher, the temperature is regulated by opening the liquid inlet amount and the liquid outlet amount under the condition of not reducing the current density, when the acid return phenomenon occurs, the discharge of the waste liquid is quickened, the liquid inlet amount is later increased, the parameters are combined together, the working condition of the electrolytic tank is regulated in a matched mode, the consumption of ammonia water is reduced, the production is cleaner and environment-friendly, and the traditional electrolytic tank can not realize.
Description
Technical Field
The invention belongs to the technical field of electrolysis, and particularly relates to a method and a device for stabilizing the working condition of an electrolytic manganese cell.
Background
Because of the special chemical property of manganese, the electrolytic manganese electrolytic production process must be carried out under stable working conditions, such as electrolysis needs to be carried out in a neutral environment, and the current density, the bath temperature and the pH value of the electrolyte are low and high, which seriously affect the electrolytic production process, so that the working condition of the electrolytic manganese electrolytic bath must be accurately controlled. In the electrolytic process, electrolyte flows in from one end or the middle part of the electrolytic tank, flows out from an overflow port at the other end of the electrolytic tank, and the height of the overflow port controls the liquid level of the electrolytic tank. The electrolytic tank is generally formed by integral casting, the height of an overflow port of the electrolytic tank is fixed and dead, the overflow port of the electrolytic tank of an electrolytic manganese manufacturer is formed by later welding, the height of the overflow port is also fixed and unchanged, the size of the overflow port is difficult to be accurate in the processing or mounting process and is basically determined by the operation level and the serious degree of construction workers, the height of the overflow port is higher, the height of the overflow port is lower, and meanwhile, the liquid level cannot be freely adjusted, so that the problem that the liquid level of the electrolytic tank is higher or lower and cannot be solved is caused, and the working condition of the electrolytic tank cannot be adjusted by controlling the height of the overflow port.
The liquid discharge ports of the electrolytic tanks are generally welded by workers, once construction is finished and cannot be adjusted, the inconsistent heights of the liquid discharge ports of the electrolytic tanks are unavoidable, and although the differences of the sizes are not quite large, the influence of the overflow port height differences of the electrolytic tanks on the working conditions of the electrolytic tanks in the electrolytic process is quite different due to quite high requirements of the electrolytic process of electrolytic manganese on the environment, and other production process parameters of workshops are unified, so that the height of the electrolytic liquid level with different heights cannot be perfectly combined with the established process parameters, and the working conditions of the electrolytic tanks are unstable.
Because the overflow port of the electrolytic tank is fixed, the problem of different liquid levels exists during processing and construction, the problem of different liquid levels of the electrolytic tank is unavoidable, further the problems of a disintegrating plate, a dead plate and the like are derived, in the actual production process, the problem is solved how to see that a tank worker always adjusts the liquid level through personal experience, see which tank liquid level is found to be high by the Cao worker, then the electrolyte is pumped by a water pipe, the process is slower, the worker cannot keep the process until the situation that the electrolyte is pumped is found out for a while, the liquid level is too low, and the electrolyte is replenished, so that the waste of the electrolyte is caused, and meanwhile, the working condition of the electrolytic tank is unstable, so that the production efficiency and the production cost are seriously influenced. The field experience and perceptibility of each worker are different, and the result of the adjustment is also different, and in summary, it is very unreliable to adjust the height of the liquid level by looking at the experience of the tank workers.
Disclosure of Invention
The invention aims to solve the problems that:
the liquid outlet of the traditional electrolytic tank is generally formed by welding workers, once construction is finished and cannot be adjusted, the inconsistent height of the liquid outlet of each electrolytic tank is unavoidable, and other production process parameters of a workshop are unified, so that the heights of different electrolytic liquid levels cannot be perfectly combined with the established process parameters, unstable working conditions of the electrolytic tank, such as increase of temperature, pH value and voltage difference of each electrolytic tank, are caused, and the following phenomenon occurs.
Phenomenon 1: if the liquid level is too high, a blank plate is often caused, so that the cathode plate is not manganese-bonded, and even is reversely dissolved due to the blank plate.
Phenomenon 2: if the liquid level is too high, the liquid level rises to the welding area of the anode plate, so that the anode plate is corroded in an accelerated manner, and the service life of the anode plate is greatly shortened.
Phenomenon 3: if the liquid level is too low, the effective electrolysis area of the cathode and anode plates is reduced, the current density is relatively increased, the heating value of the cathode and anode plates is rapidly increased, the resistance is increased, the plate surface temperature of the anode and anode plates is easily caused to be too high, even the explosion and dead plates occur, the cathode plate is not manganese any more, and even the cathode products are peeled off, so that the electrolysis efficiency is reduced.
Phenomenon 4: the cell condition is unstable, the pH value of the electrolyte in the electrolytic cell is unstable, and in order to be stable in a neutral electrolytic range, ammonia water is required to be added by workers for adjustment, so that the consumption of the ammonia water is large.
Phenomenon 5: the consumption of ammonia water is large, clean production cannot be achieved, meanwhile, the anode mud is increased, a large amount of manganese ions are consumed in an intangible way, a large amount of manganese ores are consumed, and the resource utilization rate is low.
Phenomenon 6: the increase of the anode mud shortens the groove cleaning period, shortens the effective production time and reduces the production efficiency.
The technical scheme of the invention is as follows:
a method for stabilizing the working condition of electrolytic manganese electrolyzer, which is characterized in that a liquid level controller, a thermometer, a liquid inlet and a liquid outlet are respectively arranged in the electrolyzer, a flowmeter is matched with the liquid inlet controller, a pH value meter is matched with the liquid level controller, the flow rate of electrolyte, the height of liquid level, the temperature of the electrolyzer and the working condition of the pH value of the electrolyte are monitored in real time, anomalies are found in time, and the working condition of the electrolyzer is regulated in real time, so that the working condition of the electrolyzer is maintained in a relatively stable state; namely, the liquid level height is controlled to be changed in a certain range by detecting the data of the flow, the liquid level height and the pH value of the bath temperature electrolyte, and when the bath temperature is higher, the liquid inlet amount and the liquid outlet amount are increased to adjust the liquid level; stopping liquid feeding when the temperature of the tank is too low, and simultaneously reducing the liquid level; when acid return occurs, the waste liquid discharge is quickened, the liquid inlet amount is increased, the parameters are combined together, and the working condition of the electrolytic tank is stabilized by matching and adjusting.
Further, the device used by the method comprises an electrolytic tank body, wherein a cathode plate, an anode plate, a conductive master disc, a diaphragm frame and diaphragm cloth are arranged in the electrolytic tank body; the liquid level control plate is provided with a liquid discharge pipe mounting hole, the liquid discharge pipe is arranged in the liquid discharge pipe mounting hole, the liquid discharge pipe is communicated to a closed false bottom, the closed false bottom is a closed novel electrolytic cell diaphragm frame, and waste electrolyte is discharged to the chute through the liquid discharge pipe; a small square hole for draining and deslagging is reserved at the bottom of the chute, and a movable port of a liquid discharge pipe is reserved above the chute; the liquid inlet and the liquid outlet of the electrolytic tank body are respectively provided with a flowmeter, namely one is a liquid inlet flowmeter and the other is a liquid outlet flowmeter.
Further, the liquid level control plate is provided with a handle hole.
Further, a scale plate and a thermometer are arranged on the end face of the liquid level control plate.
Further, the chute is welded with the electrolytic tank body.
Further, a bolt hole is preset in the sliding groove, and a locking handle is installed in the bolt hole.
Further, the liquid discharge pipe is connected to the closed false bottom through an upper bent pipe, a hose, a vertical pipe and a lower bent pipe, and the concrete connection is as follows: the closed false bottom is connected with a lower elbow, the lower elbow is connected with a vertical pipe, the vertical pipe is connected with a hose, the hose is connected with an upper elbow, the upper elbow is connected with a liquid discharge pipe, and the liquid discharge pipe is connected with a liquid level control plate.
Further, the hose is made of corrugated tubing.
The theoretical basis of the invention is as follows:
the electrolytic process of the metal manganese has the following competing reactions:
1. there are two competing reactions in the cathodic process:
manganese separation reaction: mn (Mn) 2+ +2e - ＝Mn(1)
Hydrogen evolution reaction: 2H (H) 2 O+2e - ＝H 2 (g)+2OH - (3)
On the cathode, the existence of overpotential can lead the electrode potential to be smaller, under normal conditions, the overpotential of metal manganese ions in the electrolysis process is lower and can be ignored, so the potential is larger, as shown in the formula (2); the overpotential of the hydrogen evolution is relatively large, and the overpotential is small because the overpotential exists to enable the hydrogen evolution potential to move in the negative direction, as shown in the formula (4). According to the electrochemical electrolysis principle, the reaction with higher electrode potential preferentially occurs on the cathode in the electrolysis process, and manganese ions are preferentially separated out, which is the aim of hopefully seeing the result in the electrolytic production, namely the electrolytic manganese production. The hydrogen evolution overpotential is relatively large and requires additional voltage to perform, which is normally a disadvantage in the competition of the cathodic process. If the liquid surface line is reduced, the effective area of electrolysis is reduced, the current density is increased, the temperature of the electrolyte is continuously increased, the overpotential of hydrogen evolution is gradually reduced, the electrode potential is increased, when the temperature or the current density or the surface condition of the polar plate is changed to reach a certain value,the competition relationship is reversed, the manganese evolution reaction starts to be in a disadvantage, the hydrogen evolution reaction is in a superiority, and H is caused 2 Precipitation, rapid rise of pH, alkali returning, mn ion as Mn (OH) 2 A large amount of precipitate is generated by the way of (1); the electrolytic manganese electrolysis process requires strict control of the bath temperature and pH.
2. The electrolytic manganese metal anode process has two competing reactions:
precipitation of MnO 2 ：Mn 2+ -2e - +2H 2 O＝MnO 2 +4H + (5)
Precipitation of O 2 ：2H 2 O-4e - ＝O 2 +4H + (6)
On the positive stage, the overpotential can lead the electrode potential to be increased, the overpotential of oxygen is relatively large, and under normal conditions, the oxygen is firstly separated out, mnO is formed 2 At the disadvantage, if the surface condition of the anode plate changes with current density, bath temperature and pH value, the competition relationship of the anode reaction is reversed, mnO 2 The precipitation of (c) becomes easy and increasingly dominant, which is an undesired consequence of production.
As seen from the formulae (5) and (6), the cationic product is O 2 Or MnO 2 A large amount of H is generated + The electrolyte in the positive chamber after electrolysis becomes acid, and the electrolyte in the negative chamber needs to be in neutral environment to normally separate out manganese, so that the negative chamber and the positive chamber are separated by diaphragm cloth, and the waste liquid after electrolysis is discharged in time, otherwise acid return is caused, and the metal manganese cannot be normally separated out from the negative electrode, so that the production efficiency is low and even the process cannot be carried out.
(1) If the liquid level is too high, the probability that the anode liquid will flow back to the cathode chamber is greatly increased, the pH value is reduced, which is shown as the acid return of the electrolytic tank (which is the most common phenomenon in the electrolytic production process), and when the pH value is lower, the precipitation of MnO is facilitated 2 Is a precipitation reaction of (a). In order to control the pH value within the range of 6-8 in the production process, ammonia water is added for neutralization, however, the addition of the ammonia water inevitably leads to the precipitation of discharged manganese ions and the ammonia water into manganese hydroxide, a large amount of anode slime is generated, meanwhile, a certain amount of manganese ions are consumed, and the manganese of the electrolyte is reduced in an invisible mannerIon concentration, more electrolyte is consumed for producing ton of manganese, so that the production cost is further increased.
(2) The manganese ions are reduced, the cathode junction manganese cannot keep up, the manufacturer can select to open a large current density to make up, along with the increase of the current density, the overpotential on two electrodes in the electrolytic tank is also increased, extra voltage is required to be added, and the extra electric energy is consumed, so that the power consumption per ton of manganese of many electrolytic manufacturers cannot be reduced.
3. According to the invention, the temperature and the pH value of the cell are regulated by regulating liquid inlet and liquid outlet, the effective electrolysis area is controlled and controlled by the liquid level height, the current density is further finely adjusted, and the heating and cooling processes are controlled, so that the working condition of the cell is in favor of separating out manganese from the cathode, and hydrogen separation is not facilitated; the positive stage is favorable for separating out oxygen, but is unfavorable for MnO 2 Is generated; the working condition is that manganese ions of the electrolyte are precipitated in the form of manganese metal as much as possible, and are not consumed in the form of manganese dioxide or manganese hydroxide.
And (II) the problem caused by the discomfort of the liquid level of the electrolytic tank.
1. Problems caused by too low a liquid level
The liquid level of the electrolytic tank is too low, the volume of the electrolytic tank is reduced, the effective electrolytic area of the polar plate is reduced, and two problems are caused under the condition that the liquid inlet and the discharged wastewater are unchanged:
(1) The current density is increased, the heating value is large, the temperature of the polar plate is increased, the resistance is increased, the voltage is increased, high temperature is generated at the contact position of the electrode plate and the conductive master disc, moisture at the contact position is rapidly evaporated, the conductivity of the contact position is further rapidly reduced, the electrolysis process cannot be performed, and dead plates are caused.
(2) The current density is increased, the reaction is intense, the temperature rise of the tank is high, the overpotential of hydrogen evolution is reduced, and the cathode competition is favorable to the occurrence of H 2 Precipitation, rapid rise of pH, alkali returning, mn ion as Mn (OH) 2 A large amount of precipitate is generated in the mode, and the manganese ion concentration of the electrolyte is reduced, so that the manganese rate of the cathode junction is greatly reduced.
2. Problems caused by too high a liquid level in the electrolytic cell.
In the case of too high a level of the electrolyzer, with unchanged feed and discharge of waste water, the following problems result:
(1) The liquid level of the electrolytic tank is too high, the effective area of electrolysis is increased, the current density of the polar plate is reduced, the manganese junction speed is reduced, and even manganese is not formed, namely the phenomenon of plate choking occurs. The reason is that the current density is low, the manganese ion migration power is insufficient, the reaction is insufficient, the bath temperature cannot meet the minimum temperature requirement, after manganese quanta near the cathode are separated out under the action of a power line, the diffusion speed of manganese ions in the solution cannot be increased, the change cannot be made up, the concentration gradient between the solution near the electrode and the slightly far bulk solution is caused, the current efficiency is reduced due to the concentration polarization effect, at the moment, the cathode junction manganese is insufficient, the production efficiency is low, some manufacturers open large current, the current density is increased, the overpotential is increased at the same time, the ton manganese electricity consumption is increased, and the production cost is high.
(2) The electrolyte level of the electrolytic tank is too high, the electrolyte of the electrolytic tank is increased, the effective electrolytic area of a polar plate is increased, the current density is reduced, the tank temperature cannot be heated to the normal effective electrolytic temperature (the electrolytic temperature is controlled to be 38-42 ℃ as appropriate), the ion migration difficulty is high, the solution resistance is increased, the electrode potential change caused by the concentration difference is caused, the concentration polarization exists, the overpotential of manganese ions is greatly increased, when the solution reaches a certain time, the cathodic reaction competition process is favorable for hydrogen evolution reaction, hydrogen begins to be separated out, the electrolytic tank begins to return alkali, the pH of the cathode solution is increased, and Mn (OH) is easy to generate 2 The crystallization and precipitation, the cathode no longer binds manganese, thus causing the phenomenon of blank plate.
(3) In general, the welding port is above the liquid surface line, the anode plate is the weakest area at the welding port, the effective connection thickness is not enough and uneven and the chemical composition is also uneven, the anode plate is the area with the fastest corrosion, if the liquid surface of the electrolytic tank is too high, the liquid surface rises to the anode plate welding port, the corrosion process is greatly accelerated, the end head of the welding port is cracked firstly under the repeated action of stress strain, the anode plate is scrapped, and the service life is also greatly shortened.
(4) The electrolytic bath has too high liquid level, further complicated working conditions in the bath, further increased leakage probability of the yin and yang chambers, and acid return.
Compared with the prior art, the invention can realize accurate control of the liquid level of the electrolytic tank, and once the liquid level is adjusted, reliable liquid level data is generated and fixed, the situation that the liquid level is judged by a tank worker according to the appearance of the electrolytic tank is avoided, and the situation that the electrolytic tank is put more or not put in place is avoided, so that the working condition of the electrolytic tank is more stable and controllable.
The invention has the following characteristics:
1) The liquid level of the electrolysis bath in the workshop can be adjusted in real time and also can be adjusted to be fixed at a proper height.
2) Different factories can determine the proper liquid level according to the production process and the management level of the workshops so as to obtain the best economic data.
3) The liquid level of the individual electrolytic tank can be independently managed, so that an electrolytic manufacturer can conveniently perform experiments and exploration on novel polar plates with different models and different structures, and optimal experimental data can be obtained.
4) The invention can be adjusted up and down, can be used on the traditional electrolytic tank, can be also in butt joint with a novel electrolytic tank diaphragm system assembly with a fixed vertical liquid discharge pipe, is convenient to install and disassemble, is convenient for the hoisting work of the novel electrolytic tank diaphragm frame assembly with a closed false bottom, and is easy to realize mechanical operation.
5) The interface is expanded, so that the measurement of the flow, the temperature and the pH of the electrolytic tank can be expanded, the optimal production experimental data can be obtained for production, and the technology update of the electrolytic manganese industry can be effectively promoted.
6) Compared with the traditional fixed overflow port, the invention can be adjusted and fixed at a proper position, does not need to pump liquid by using a water pipe, lowers the water level, greatly reduces the labor intensity of workers, simultaneously reduces the requirement on the production experience of the workers, is not expected to be thrown in the working environment of young people, has low wages and low electrolysis industries, is not expected to have learning ability by many electrolysis enterprises, and can further reduce the requirement on talents.
7) The invention provides a method and a working condition adjustment platform, so that the electrolytic manganese production process is in a real-time controllable state.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a view in the a direction of fig. 1.
Fig. 3 is a schematic view of a chute.
FIG. 4 is a schematic view of the installation of the fluid level control panel and the I-shaped adhesive tape.
Fig. 5 is a schematic diagram of the connection of the liquid level control plate and the chute, and a schematic diagram of the scale plate and the thermometer.
The marks in the figure: 1. an electrolytic cell body; 2. a chute; 3. a liquid discharge pipe; 4. a liquid level control plate, a handle hole 41, a liquid discharge pipe mounting hole 42 and an I-shaped groove 43; 5. an anode plate; 6. a cathode plate; 7. a conductive master; 8. a diaphragm frame; 9. a diaphragm cloth; 10. a locking handle; 11. the device comprises a chute, a slag discharging hole, a movable port of a liquid discharging pipe, and a locking bolt hole, wherein the chute is 111; 12. i-shaped adhesive tape; 13. a scale plate; 14. a thermometer; 15. an upper elbow; 16. a hose; 17. a riser; 18. a lower bent pipe; 19. a flow meter; 20. a closed false bottom.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Referring to fig. 1-5, a method for stabilizing working conditions of an electrolytic manganese electrolytic tank is provided, wherein the electrolytic tank is provided with a liquid level controller, a thermometer, a liquid inlet and a liquid outlet, a flowmeter is matched with the liquid inlet controller, a pH value meter is matched with the liquid level controller, the working conditions of the flow rate, the liquid level height, the tank temperature and the pH value of the electrolytic solution are monitored in real time, anomalies are found in time, and the working conditions of the electrolytic tank are regulated in real time, so that the working conditions of the electrolytic tank are maintained in a relatively stable state; the liquid level height is controlled in a certain range by detecting data of flow, liquid level height and bath temperature electrolyte pH value, and when the bath temperature is higher, the liquid inlet amount is increased to adjust the liquid level; stopping feeding new electrolyte when the temperature is low; when acid returning occurs, the discharge of waste liquid is quickened, and new electrolyte is replenished; the parameters are combined together to coordinate and adjust, so as to stabilize the working condition of the electrolytic tank.
The device used by the method comprises an electrolytic tank body 1, wherein a cathode plate 6, an anode plate 5, a conductive master disc 7, a diaphragm frame 8 and diaphragm cloth 9 are arranged in the electrolytic tank body 1, and the device is characterized in that a chute 11 is arranged at a liquid outlet of the electrolytic tank body 1, a liquid level control plate 4 is arranged in the chute 11, I-shaped grooves 43 are arranged on two sides of the liquid level control plate 4, and I-shaped adhesive tapes 12 are arranged in the I-shaped grooves 43 to play a sealing role and ensure that electrolyte is not leaked out; the liquid level control plate 4 is provided with a liquid drain pipe mounting hole 42, the liquid drain pipe 3 is arranged in the liquid drain pipe mounting hole 42, the liquid level control plate moves up and down in the chute to drive the liquid drain pipe to move up and down, and therefore the height of the liquid level is adjusted; the liquid discharge pipe 3 is communicated with the closed false bottom 20, the closed false bottom 20 is a closed novel electrolytic cell diaphragm frame, and waste electrolyte is discharged to the chute 2 through the liquid discharge pipe 3; a slag discharging hole 111 for discharging water and slag is reserved at the bottom of the chute 11, so that the liquid level control plate is prevented from moving up and down due to air holding; a movable opening 112 of the liquid discharge pipe is arranged above the chute 11, so that the liquid level control plate can move up and down to have enough travel; the liquid inlet and the liquid outlet of the electrolytic tank body 1 are respectively provided with a flowmeter 19, namely one is a liquid inlet flowmeter and the other is a liquid outlet flowmeter, and the temperature, the liquid level height and the fine adjustment pH value of the electrolyte are controlled through liquid inlet and liquid discharge.
The liquid level control plate 4 is provided with a handle hole 41. Is convenient to operate by hands.
The end face of the liquid level control plate 4 is provided with a scale 13 and a thermometer 14. The liquid level is convenient for workers to check, and the temperature of the electrolyte of the electrolytic tank is displayed in real time.
The chute 11 is welded with the electrolytic tank body 1.
The chute 11 is provided with a locking bolt hole 113, the locking bolt hole 113 is provided with a locking handle 10, and the liquid level control plate is locked at a proper position.
The liquid discharge pipe 3 is connected to the closed false bottom 20 through an upper elbow 15, a hose 16, a vertical pipe 17 and a lower elbow 18, and the concrete connection is as follows: the closed false bottom 20 is connected with the lower elbow 18, the lower elbow 18 is connected with the vertical pipe 17, the vertical pipe 17 is connected with the hose 16, the hose 16 is connected with the upper elbow 15, the upper elbow 15 is connected with the liquid discharge pipe 3, and the liquid discharge pipe 3 is connected with the liquid level control plate 4. The function of liquid discharge can be realized during electrolysis, when the diaphragm frame 8 is required to be lifted, the upper bent pipe 15 is firstly uncoupled from the liquid discharge pipe 3, and the upper bent pipe 15, the hose 16, the vertical pipe 17 and the lower bent pipe 18 are lifted out of the electrolytic tank along with the diaphragm frame 8, so that the novel electrolytic tank diaphragm frame is freely lifted, and the production operation is convenient.
The hose 16 is made of corrugated tubing. The upper bent pipe 15 and the liquid discharge pipe 3 are convenient to install and detach, and the mechanical operation of hanging in and out the diaphragm frame is realized.
The invention can realize accurate control of the liquid level of the electrolytic tank, and once the liquid level is adjusted, reliable liquid level data is generated and fixed, so that a tank worker does not need to judge the height of the liquid level according to the appearance of the electrolytic tank, and the situation that the electrolytic tank is put more or not in place is avoided, thereby ensuring that the working condition of the electrolytic tank is more stable and controllable.
In conclusion, the invention can detect the data of flow, liquid level height and bath temperature electrolyte pH value, control the liquid level height within a certain range, and adjust the liquid level height by opening the liquid inlet amount and the liquid outlet amount when the bath temperature is higher; stopping feeding new electrolyte when the temperature is low; when acid returning occurs, the discharge of waste liquid is quickened, and new electrolyte is replenished. The parameters are combined together to be matched and adjusted, so that the shortest time and the lowest cost are spent, the working condition of the electrolytic tank is stabilized, and the working condition of the electrolytic tank is in favor of separating out manganese from a cathode and not in favor of separating out hydrogen; the positive stage is favorable for separating out oxygen, but is unfavorable for MnO 2 Is generated; the working condition is that manganese ions of the electrolyte are precipitated in the form of manganese metal as much as possible, and are not consumed in the form of manganese dioxide or manganese hydroxide. Different electrolytic manganese manufacturers can find out a set of most economical production and experimental data according to different conditions of enterprises, and a platform and a method are provided.
Claims (3)
1. A device for stabilizing working conditions of an electrolytic manganese cell is characterized in that: including electrolysis cell body (1), there are negative plate (6), anode plate (5), electrically conductive master disk (7), diaphragm frame (8), diaphragm cloth (9), its characterized in that in electrolysis cell body (1): a chute (11) is arranged at the liquid outlet of the electrolytic tank body (1), a liquid level control plate (4) is arranged in the chute (11), I-shaped grooves (43) are arranged on two sides of the liquid level control plate (4), and I-shaped adhesive tapes (12) are arranged in the I-shaped grooves (43); a liquid level control plate (4) is provided with a liquid discharge pipe mounting hole (42), a liquid discharge pipe (3) is arranged in the liquid discharge pipe mounting hole (42), the liquid discharge pipe (3) is communicated to a closed false bottom (20), the closed false bottom (20) is a closed novel electrolytic cell diaphragm frame, and waste electrolyte is discharged to a chute (2) through the liquid discharge pipe (3); a slag discharging hole (111) for discharging water and slag is reserved at the bottom of the chute (11), and a liquid discharging pipe movable opening (112) is reserved above the chute (11); the liquid inlet and the liquid outlet of the electrolytic tank body (1) are respectively provided with a flowmeter (19), namely one is a liquid inlet flowmeter and the other is a liquid outlet flowmeter;
the liquid discharge pipe (3) is connected to the closed false bottom (20) through an upper bent pipe (15), a hose (16), a vertical pipe (17) and a lower bent pipe (18), and the concrete connection is as follows: the closed false bottom (20) is connected with a lower elbow (18), the lower elbow (18) is connected with a vertical pipe (17), the vertical pipe (17) is connected with a hose (16), the hose (16) is connected with an upper elbow (15), the upper elbow (15) is connected with a liquid discharge pipe (3), and the liquid discharge pipe (3) is connected with a liquid level control plate (4);
the hose (16) is made of corrugated tubing;
the liquid level control plate (4) is provided with a handle hole (41);
the sliding chute (11) is provided with a locking bolt hole (113), and the locking bolt hole (113) is provided with a locking handle (10).
2. The device for stabilizing the working condition of an electrolytic manganese cell according to claim 1, wherein: the end face of the liquid level control plate (4) is provided with a scale plate (13) and a thermometer (14).
3. The device for stabilizing the working condition of an electrolytic manganese cell according to claim 1, wherein: the chute (11) is welded with the electrolytic tank body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111455610.7A CN113957489B (en) | 2021-12-01 | 2021-12-01 | Method and device for stabilizing working condition of electrolytic manganese cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111455610.7A CN113957489B (en) | 2021-12-01 | 2021-12-01 | Method and device for stabilizing working condition of electrolytic manganese cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113957489A CN113957489A (en) | 2022-01-21 |
| CN113957489B true CN113957489B (en) | 2023-10-13 |
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| CN2443008Y (en) * | 2000-09-20 | 2001-08-15 | 重庆三角滩锰业有限公司 | Non-false bottom electrolysing cell for electrolysing manganese |
| CN201201979Y (en) * | 2008-05-05 | 2009-03-04 | 杨湘清 | Electrolytic manganese glass fibre reinforced plastic electrolytic cell |
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| CN203440475U (en) * | 2013-09-04 | 2014-02-19 | 宁夏天元锰业有限公司 | Device for monitoring liquid levels in negative and positive columns of electrolytic bath |
| CN105063672A (en) * | 2015-08-27 | 2015-11-18 | 吉首大学 | Electrolytic manganese solution supplementing device |
| CN105154918A (en) * | 2015-11-04 | 2015-12-16 | 王兆兵 | Electrolytic manganese production system capable of saving energy and reducing consumption |
| CN214655285U (en) * | 2021-03-26 | 2021-11-09 | 宁夏天元锰材料研究院(有限公司) | Circulation system for purifying and cooling manganese electrolytic cell outside |
| CN214655293U (en) * | 2021-01-07 | 2021-11-09 | 中信大锰矿业有限责任公司大新锰矿分公司 | Online monitoring device for electrolytic manganese production tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2443008Y (en) * | 2000-09-20 | 2001-08-15 | 重庆三角滩锰业有限公司 | Non-false bottom electrolysing cell for electrolysing manganese |
| CN201201979Y (en) * | 2008-05-05 | 2009-03-04 | 杨湘清 | Electrolytic manganese glass fibre reinforced plastic electrolytic cell |
| CN101608322A (en) * | 2009-07-13 | 2009-12-23 | 林建平 | A kind of manganese electrolytic cell equipment |
| CN203440475U (en) * | 2013-09-04 | 2014-02-19 | 宁夏天元锰业有限公司 | Device for monitoring liquid levels in negative and positive columns of electrolytic bath |
| CN105063672A (en) * | 2015-08-27 | 2015-11-18 | 吉首大学 | Electrolytic manganese solution supplementing device |
| CN105154918A (en) * | 2015-11-04 | 2015-12-16 | 王兆兵 | Electrolytic manganese production system capable of saving energy and reducing consumption |
| CN214655293U (en) * | 2021-01-07 | 2021-11-09 | 中信大锰矿业有限责任公司大新锰矿分公司 | Online monitoring device for electrolytic manganese production tank |
| CN214655285U (en) * | 2021-03-26 | 2021-11-09 | 宁夏天元锰材料研究院(有限公司) | Circulation system for purifying and cooling manganese electrolytic cell outside |
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| CN113957489A (en) | 2022-01-21 |
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