KR20170140121A - A method for recycling and managing industrial lead battery - Google Patents

Abstract

The present invention relates to a method for recycling and managing an industrial lead battery. According to an embodiment of the present invention, the method for recycling and managing the industrial lead battery comprises: an appearance confirming step; a pre-measurement step; a sulfate removing step; an electrolyte discharging step; a step of injecting a cleaning liquid for an inside of the battery; a step of injecting a pole plate coating liquid to the inside of the battery; a step of discharging the cleaning liquid and the coating liquid; a parallel step of repeating the step of discharging the cleaning liquid and the coating liquid; a step of purifying sulfate sludge with a filter; a step of adjusting specific gravity of the electrolyte; a step of injecting the purified electrolyte again; a step of measuring the specific gravity of the injected electrolyte; a step of replacing a cell which cannot be recycled and returning the cell to the sulfate removing step; a step of connecting a recycling device to the battery and recycling the battery; a step of recycling and confirming the battery for each cell; a step of installing the recycled battery in an electronic forklift; and a step of inputting and managing a battery recycling history. The present invention can reduce costs for disposing industrial waste.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an industrial lead-

The present invention relates to an industrial lead-acid battery restoration technique and method.

The present invention relates to a method of recovering industrial lead acid batteries, and more particularly, to a method and apparatus for recovering industrial lead acid batteries, and more particularly, to a method and apparatus for recovering industrial lead acid batteries by using a solution for dissolving electrolyte and sulphate sludge in a battery housing, The present invention relates to a technique for recovering an industrial storage battery by coating an electrode plate while washing the inside of a battery and discharging it from an electrolyte to filter out sulphate sludge and then injecting the sludge into the battery body by regulating specific gravity.

An industrial battery, that is, a battery, is installed in an industrial machine such as an electric forklift, and a charged current is supplied by a discharge. As a discharge progresses, a voltage drop occurs inside. The battery is recharged before the lowest voltage allowed to discharge until the battery reaches the set minimum voltage and the battery is recharged repeatedly for the allowed number of times so that the battery can be reused repeatedly . The electrolyte used in general lead-acid batteries is diluted sulfuric acid, caustic alkali, dissolved alkali, etc. The electrolyte most commonly used is dilute sulfuric acid. However, the industrial forklift is used to lift and lower the load at an industrial site or to transport it to a desired position within a limited space, and the engine is largely divided into an engine forklift and an electric forklift depending on the power source. However, industrial electric forklifts use electricity supplied from a battery as a power source, and they are used for indoor work because they have no exhaust gas and noise is smaller than an engine forklift. On the other hand, the battery of the electric forklift is a case in which a negative electrode plate and a positive electrode plate are inserted in a case containing an electrolyte, and a mutual chemical reaction occurs between the positive electrode plate and the negative electrode plate and the electrolyte to discharge and charge.

BACKGROUND ART Industrial batteries used in automobiles, industrial machines, ships, and the like are used as lead acid batteries. Such batteries typically provide power to automobiles and various industrial machines and appliances by repeating the charging and discharging of the power generated by the generator. However, if such a battery is repeatedly charged and discharged for many years, the electrolytic function of the battery is deteriorated due to various causes inside the battery, so that the battery can no longer function as a battery and eventually be disposed of as industrial waste .

[0003] Such a disused and disposed waste battery includes a battery collecting step of collecting a used battery according to a patent application entitled " Method for regenerating and recovering a used battery (registration number 10-0681529, extinguished) " A battery diagnosis step of selectively collecting and repairing the battery of the recovered battery, or measuring the specific gravity and the voltage, and determining whether the battery is usable; In each cell of the usable battery selected in the battery diagnosis step, 10% of polyethylene glycol, 10% of sorbic acid, 0.1% of benzoic acid or benzoic acid, 0.1% of salicylic acid, 0.1% of sodium sulfate, and 79.7% of distilled water; A charging and discharging step of charging and discharging a battery in which a regenerated liquid is replenished by using a rechargeable charger and a discharger, and a packaging step of cleanly cleaning and packaging the external appearance of the charged battery, wherein the old and used A restoration technology that can minimize the environmental pollution and reduce the cost of battery repurchase by reusing the battery has been proposed, but since the registration fee has not been paid, And the technology can be used without limitation. However, the above-mentioned technique also shows only the step of charging after charging the regenerated battery solution, so that the restoration is incomplete and the sulphate sludge in the main body can not be removed.

As a method for removing impurities from the waste lead accumulator for regeneration of the waste lead accumulator, a method of recycling the lead accumulator battery (Registration No. 10-1399763, registered) And an outlet through which the cleaned bubble water can be drained; Microbubble water containing nanosized bubbles including nano-sized bubbles made of water and air and micro bubbles containing microbubbles are used to clean the inside of a waste lead battery containing electrodes and then recharge it with high frequency pulses to regenerate lead acid batteries And a method for regenerating a waste lead battery.

The patented "battery restoration method (registration number 10-1482517, registered) ", which is a domestic patent registered technology, relates to a battery restoration method. Measuring a voltage of the battery with a meter to measure whether the battery can be recovered; A perforation step of perforating a part of the body of the recoverable battery to form a perforation hole; A discharging step of discharging the electrolyte and the sulfate sludge from the battery drilled in the piercing step into the discharge tank; A purifying step of purifying the electrolytic solution and the sludge discharged in the discharging step with a filter; A specific gravity adjusting step of measuring a specific gravity of the electrolytic solution purified in the purifying step and controlling a specific gravity suitable for the battery; An injecting step of injecting an electrolyte having a controlled specific gravity through the perforation hole in the specific gravity adjusting step; A sealing step of sealing the perforation hole after the injecting step; And a restoring step of connecting the battery to the restorer after the sealing step and removing the lead sulfate formed on the inner electrode plate. According to this method, all of the sulphate sludge formed on the electrode plate can be removed by the perforation hole formed for each cell (single cell).

In addition, a regenerating apparatus for industrial batteries and a method for regenerating industrial batteries using the same (registered in Registration No. 10-1567036, registered with the Korean Patent Registration No. 10-1567036, registered as a domestic patent) are manufactured by injecting a regenerant solution containing rare earths into a battery having a sulphate- Frequency pulse, it is possible to improve the regeneration efficiency of the electrode plate and the capacity recovery rate of the battery more than the conventional technique, but the battery regeneration device equipped with the charging function and the reverse discharge prevention function using the four-step charging method is used. The present invention relates to an industrial battery regeneration apparatus and a method of regenerating an industrial battery using the same, which can prevent the performance of the battery from being deteriorated due to natural discharge of the battery after completion of charging, The reproducing apparatus includes a power supply unit, a polarity checking unit, a measuring unit, an alarm sound generating unit, A high frequency pulse generating unit, an overheat preventing control unit, an inverse discharge preventing circuit unit, and a control unit. The battery regeneration method using the method includes a regeneration liquid manufacturing step of mixing regeneration material with an electrolyte to produce a regeneration liquid; A regeneration liquid injecting step, a battery sealing step, a battery connecting step, and a high-frequency pulse applying and charging step, wherein the regenerating material comprises: 30 g of resin, 20 g of powdered potassium, 10 g of powdered powder, 5 g of lanthanum, 5 g of cerium, 80 g of tourmaline, 8 g of natural carbon, 4 g of conductive carbon, 40 g of gelatin and 10 g of calckey were mixed with 18 liters of electrolytic solution containing 88% Are mixed together.

However, common features of the above-described patent techniques and methods are that a perforation hole is drilled in each battery cell (single cell); And the recovery battery is recovered through the charging and discharging steps after cleaning the inside of the battery housing and the electrode plate by injecting the cleaning liquid or injecting the prescribed regeneration liquid. However, in the actual industrial field, there is no stable and effective battery regenerant or restorer that can be applied to the battery regeneration of all electric forklifts uniformly, so that the regeneration method has not yet been established. In addition, when the battery is restored, perforating each cell of the battery may cause a secondary problem after the operation, although the operation is cumbersome.

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a battery rechargeable battery which is easy to remove from a train, The present invention provides a battery recovery method capable of removing sulphate sludge in a housing and replacing all electrolytic solutions, but also protecting the environment by reusing existing electrolytic solutions and reducing industrial waste treatment costs.

According to the present invention, it is possible to apply the regenerated liquid and the cleaning liquid to the electromotive vehicle differently according to the simple operation procedure and the predetermined device selection, and the restorer can also specify and manage the proper one for the electromotive vehicle.

According to an aspect of the present invention, there is provided a method for recovering a battery, comprising the steps of: preparing a battery housing; separating the battery from the battery; Sludge can be removed, and the electrolyte solution can be completely replaced, but the existing electrolyte solution can be reused to provide a battery recovery method that can reduce environmental waste as well as industrial waste treatment cost.

In addition, the present invention should apply different kinds of regenerating liquid and cleaning liquid to the electric vehicle according to a simple operation procedure and a predetermined device selection, and a method for specifying and managing a proper one for the electric vehicle have.

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method for recovering sulfate sludge in a battery housing by a simple process, The present invention provides a battery recovery method capable of reducing the cost of treating industrial wastes as well as protecting the environment by reusing existing electrolytic solutions while replacing all electrolytic solutions.

In addition, the present invention can be applied to battery regeneration liquid and cleaning liquid suited to a train by a simple operation procedure and a predetermined equipment selection, and a restorer also provides a method for specifying and managing a proper one for the train.

1A is a structural view of a conventional electric forklift.
1B is an internal structural view of a conventional cell (a single cell) of an electric forklift accumulator.
2 is a flowchart of an industrial lead-acid battery restoration management method according to the present invention.
3 is a conceptual diagram of a method for restoring and managing an industrial lead-acid battery according to the present invention.
4 is a configuration diagram of a method for restoring and managing industrial lead-acid batteries according to the present invention.
FIG. 5 is a configuration and restoration step of a restorer capable of introducing a method for restoring and managing industrial lead-acid batteries according to the present invention.
6 is an example of the shortened URL and QR code used in the method for restoring and managing industrial lead-acid batteries according to the present invention.

One preferred embodiment will be described below with reference to the accompanying drawings.

FIG. 1A is a structural view of a conventional electric forklift, and FIG. 1B is an internal structural view of a conventional cell (a single cell) of an electric forklift battery. Among the industrial forklifts, electric forklifts use electricity more than engine forklifts, so they are simpler in structure, less noise and eco-friendly, so they are more preferred in the industrial field. As described above, there are considerable problems in the management and restoration of the accumulators.

The embodiments of the present invention will be described with reference to FIGS. 2 to 6. FIG.

2 is a flowchart of a method for recovering a battery according to an embodiment of the present invention. As shown in the drawing, the external appearance checking step S10 is performed to check whether there is any damage or unusuality in the battery main body. The external appearance checking step S10 is performed for each cell (single cell) Confirm the apparent problem, the +/- polarity condition, the depletion status of the electrolyte, and the Lot no., Etc., and check whether the cell itself is damaged or not.

After the cells are selected in the appearance confirmation step S10, the voltage and specific gravity of the battery are measured by the voltage and specific gravity meter, and the pre-measurement step S20 is performed to determine whether the battery can be recovered. In the pre-measurement step (S20), the specific gravity of the electrolyte is measured by opening the one-touch cap lid of the battery for the industrial electric forklift, that is, the maintenance type (PT type) Measure the voltage by connecting a voltmeter to the terminal.

In the case of the industrial electric forklift according to the present invention, the output voltage of each cell is 2V since the normal output voltage of the battery is 48V and the number of cells is 24. If the normal output voltage of each cell is 2V, it is determined that the battery is recoverable if the nominal voltage is 2V or more, or the load voltage is 1.6V or more. If the nominal voltage is 0.05V or more and less than 2V or the load voltage is 0.05V or more and 1.6V or less If the nominal voltage is less than 0.05 or the load voltage is less than 0.05V, it is judged that it can not be restored. In addition, the 2V inspection is performed by connecting the battery to a discharger, discharging the battery, measuring the electrolyte of the cell with a specific gravity meter, and determining a recoverable battery if the specific gravity measured at 25 ° C is within 1.10 ± 0.005.

The nominal voltage means a standard voltage used for displaying the battery voltage, and the load voltage means a voltage appearing on the meter when a certain load is applied. The reason why the nominal voltage and the load voltage are distinguished from each other is that the nominal voltage has a high internal resistance and at least a high voltage. However, when the internal resistance is high and the amount of current is small, Therefore, the state of the battery can be grasped partially by viewing this state. Also, when the discharge end voltage is used to discharge the battery, if the current inside the battery is completely used, the voltage becomes close to zero. This will damage the battery and prevent it from recharging. Therefore, all batteries have a voltage that must be maintained when discharging to avoid such a danger, and this voltage is called the discharge end voltage.

The load voltage measurement measures both the total battery voltage and the individual voltage. It is preferable that the total voltage (48V reference) is 51.3 to 52.8 V and the individual voltage is 2.13 to 2.20 V when the voltage stabilization is completed after completion of the charging operation.

The specific gravity is checked separately for each cell, and the specific gravity of the standard temperature is 1.208 ~ 1.290. The measurement of the voltage and the specific gravity is carried out at a temperature within the range of 5 to 60 ° C of the internal electrolyte of each cell. However, the proportion of sulfuric acid in the main component of the electrolyte solution, so changes with temperature in terms of the measured value of 25 ℃ the basis of the standard temperature in terms of expression and its translation expression _{S 25 = S t +0.0007 (t} -25) S 25 is a standard S _t is the specific gravity measured at t ° C, and t is the current temperature at which the specific gravity is measured.

After the pre-measurement step S20, the post-measurement step S50 is performed. In the post-measurement step S50, a discharge unit is connected to the corresponding cell, and the specific gravity and the voltage are measured. However, in case of specific gravity, the measured value after discharge and the specific gravity of electrolyte measured before discharge are compared. Practically, when the specific gravity before and after the measurement is equal, it is judged that the electrode plate is damaged, and when the specific gravity is different, it is judged that there is no damage to the electrode plate.

In the above process, the sludge removal step (S30) is performed using each of the restorers for each cell determined as to the possibility of restoration and the damage of the electrode plate. The restorer and the discharger used in the poison sulfate removal step (S30) are the electric forklift battery restorer DBR72-PC1 of eco-energy power and the constant current discharger DBR-DC1 having constituent processing steps as shown in Figs. 5A and 5B Is preferably used.

The specific restorer is configured as shown in FIG. 5A. The specific restorer includes an input unit for transmitting the input signal to the control unit according to an input of a button and a volume adjuster of a field worker; A microprocessor for measuring and storing the state of the battery and calculating an input value of the input unit to command a high frequency, a high current and a discharge to the output unit; A control unit for causing the display unit to display a message; A display unit receiving a signal from the control unit and displaying a value of a voltage current or the like and displaying an operation status, a status, and the like; A detector for detecting the state of the battery and transmitting the detected state to the controller; An output (IGBT) receiving power; A power unit for providing power to all other parts; And a discharge unit for discharging the current of the battery by using a discharge chamber such as a resistor. As shown in FIG. 5B, the restoring unit of the restoring unit includes an input step S1 for inputting the inherent capacitance of the battery to be restored through the input unit; Detecting the state of the battery in the detector according to the input contents and storing the state (S2); (S3) discharging the battery to the end voltage in order to eliminate the surface charge and the memory phenomenon in the discharge part after the storage of the battery condition; A high-frequency high-current application step (S4) of performing a desulfurization and an electrolytic solution reduction by automatically performing voltage and discharge detection at a frequency of 5 to 20 kHz and a current of 1 to 50 amps most suitable for a battery in a control unit after discharge; (S5) of measuring the battery temperature and controlling the output unit according to the detected temperature; A display step (S6) of displaying voltage, current, temperature, elapsed time, discharge time and restoration result. The predetermined restorer system pulses a high-frequency battery to charge a battery, shocks the sulphate forming a crystallization film by an impact current generated at the same time, separates the sulfuric acid from the lead sulphate, cleans the electrode plate, and returns sulfuric acid to the electrolyte to increase the sulfuric acid specific gravity Maintains battery efficiency and lifetime, and improves performance. In addition, it discharges for a certain period of time after charging for a certain time during charging, thereby preventing overheating and surface charge which may occur during charging. By using an IGBT device most suitable for a switching power circuit, output of a high frequency high capacity current is realized. An IGBT of the output section, that is, an insulated gate bipolar transistor is an electronic device using a junction-type transistor in which a metal oxide semiconductor field effect transistor (MOSFET) is embedded in a gate section, It is a self-extinguishing type with on / off by the input signal. It is a semiconductor device capable of high-speed switching with high power. It can only take advantage of MOSFET and bipolar transistor. IGBT analysis includes MOSFET + diode (Diode model) and MOSFET + BJT type (BJT model) are commonly used. However, the MOSFET + BJT model is relatively accurate, regardless of which one of the above models is used.

However, the reason why IGBTs were born in the industry is that they are actually used to replace MOSFETs. In the case of a MOSFET, since it is a unidirectional current carrier (electron or hole), that is, it is an electronic device, there is a limitation in increasing the breakdown voltage or increasing the amount of current. For this reason, IGBTs have been developed to compensate for these disadvantages of MOSFETs and to obtain high breakdown voltage and current. However, these IGBTs also have drawbacks. That is, the speed is slower than the MOSFET. In fact, the IGBT uses both carriers of the hole, which has a disadvantage that the turn-off time is longer than that of the MOSFET. Most of the IGBT's switching frequency band is less than 100kHz, which is suitable for use in the above restorer system. The restorer system varies the frequency corresponding to 5 to 20 kHz differently from other chargers using the existing fixed frequency waveform so as to give impact waveforms to the whitened electrode plates for various bands, It is preferable to use it in the present invention since it is configured to enable charging and flexible coping. In addition, the restorer also includes a discharging program for measuring the charged state of the battery by setting the battery end voltage separately from the charging of the battery and conducting a discharge test. In the case of a battery which was initially released or left in a dormant state for a long period of time, it is necessary to repeatedly perform buffering and discharging several times in order to reuse or draw a certain basic performance. It is desirable to include a charge / discharge function so as to perform the charge / discharge function. In addition, when the charging or discharging operation is stopped due to an unexpected power failure or unexpected power outage at the worksite, the charger saves the previous situation in units of one minute, and when the power supply is resumed, The present invention is not limited to the use of the above-described restorer, but the restoration management method of the industrial battery according to the present invention is not limited to the use of the restorer.

After the above step, the discharging step S40 of the electrolytic solution proceeds. The electrolyte discharging step S40 is a step of differentiating the industrial battery rechargeable battery management method according to the present invention. That is, the electrolyte discharging step S40 is a step of discharging only the electrolytic solution in the housing of the battery cell and the removed sulphate sludge to the discharge tank. However, as shown in the configuration diagram of Fig. 4, The electrolytic solution and the sulphate sludge in the battery cell can be discharged to the outside, and the purified electrolytic solution, the washing solution and the coating solution can be injected or discharged in a precise sequence from back to forth. It is preferable that the predetermined vacuum pump employs a rotary vane pump. The inner structure of the pump is a rotary vane and a cylinder. The center of the rotor and the center of the cylinder are eccentric. The vane is returned to the inner surface of the cylinder by a spring or a centrifugal force. At this time, a space is created between the vane and the vane, and the volume changes depending on the rotation of the rotor. As one vane passes through the intake section, the volume of the space gradually increases. When the next vane passes through the intake section, the space volume becomes maximum. The electrolyte and the sulphate sludge sucked from the inlet portion are compressed in the next step and then discharged through the exhaust portion. The rotary vane pump is the most widely used type throughout the industry today and the maximum degree of vacuum is in the region of 1 + 10 Torr (Torr). The repeated discharge and injection of the electrolyte solution and sulphate sludge, washing solution and coating solution according to the present invention It is preferable to use it as an application.

The precise adjustment of the discharge amount of the rotary vane pump and the switching of the operation can be easily controlled by changing the rotation direction of the pump motor. Due to the feature that the rotary vane pump is used, the industrial lead-acid battery restoration management method according to the present invention does not detach the cells of the battery determined to be "restorable" in the pre-measurement step S20 in a cumbersome manner, Replacement, washing and coating operations can be easily repeated. In addition, liquid injection and discharge operations may be arbitrarily selected and precisely performed in the battery housing with the pump.

As described above, in the subsequent implementation step of the cell in which the electrolyte discharging step S40 is completed, the two steps are processed in parallel. One parallel step includes an internal wash solution injection step (S411); (S412), and discharging the inner cleaning liquid and the coating liquid sequentially (S413). The injection and ejection steps may be repeated several times using the rotary vane pump described above.

In the other parallel step, the electrolytic solution discharged to the discharge tank 211 is subjected to the electrolytic solution cleaning step S42 using the filter to remove the sulfate sludge, and then the specific gravity is adjusted to be equal to the specific gravity measured in step S43. An electrolytic solution is adjusted to an appropriate level using the rotary vane pump and re-injected into each cell.

In the step S43 of adjusting the specific gravity of the electrolyte, the specific gravity suitable for each cell is adjusted by referring to the specific gravity of the other cells together with the specific gravity of the cells. At this time, various electrolytes of specific gravity are prepared. It is preferable that the range is set to 1.28 占. 005 or less.

When the electrolyte injection step S44 is completed, the post-measurement step S50 of measuring the voltage and specific gravity of each cell is performed immediately. In the post-measurement step S50, if the measured voltage is 3.2 V or more for each cell or the measurement specific gravity is within the range of 1.28 ± 0.005, it is determined to be a recoverable cell and the battery cell restoring step S60 is performed next.

According to the embodiment of the present invention, although the voltage measured in the pre-measurement step S20 and the result of specific gravity are not significantly different from those measured in the post-measurement step S50, Since the state of the inside and the electrode plate are different, it is determined whether or not the restoration operation is continued again in the post-measurement step (S50).

In the case where the post-measurement value is less than the restorability determination reference value (No), it is preferable to replace the cell with another spare cell to return to the sulphate removal step (S30) and perform the feeding step.

As described above, after the post-measurement step S50 is completed, the battery cell having the restorability judgment is subjected to the restoration step S60. The predetermined restorer used in the above-described method of the present invention is also used in the steps of removing the sulfate (S30) and restoring the battery cell (S60). All the steps are performed for 4 ± 1 hours in total of 8 ± 1 hour It is preferable to use them for connection.

After the battery cell restoring step S60 is completed as described above, the battery cell restoring confirmation step S70 is performed. In the battery cell restoring confirmation step S70, the specific gravity of the voltage and the electrolyte is measured for each cell, If the cell voltage is 2.13 V or more and the cell specific gravity is within 1.150 +/- 0.005, it is determined that the corresponding battery cell is restored.

In the battery cell restoration confirmation step (S70), the electric forklift is directly tested at the industrial site to confirm the output level of the battery, and the state of the battery discharge indicator of the electric forklift is referred to the equipment manufacturer's manual And proceeds to step S80 for checking and confirming.

In addition, it is desirable that the total voltage of the measured battery should be 47.0 V or higher to determine the success of the battery.

After the commissioning confirmation step (S80) is performed as described above, a successful output is displayed and the restoration history is classified into the case of being judged as "restoration success" and the case of restoring some cells although the output of the battery is not successful, After the step S90, the entire process of the industrial lead-acid battery restoration management method according to the present invention is performed.

3, the water level sensor attached to the end of the electrolytic solution hose 301 is a water level sensor such as a distilled water of a distilled water management device supplemented to an industrial lead-acid battery already filed by the applicants The water level in the battery housing after the injection or discharge cycle is connected to the water level monitoring panel so that the water level is divided into three levels such as shortage, It is preferable to adjust the operation of the injection / discharge direction of the pump.

Even if two or four cells out of the 24 cells of the battery do not function properly in the actual field, the field operation can still be used in some cases. Therefore, the restoration management method of the industrial lead acid battery according to the present invention, Since restoration management of the cell dimension is managed as a separate problem, it is preferable that each cell is separated from each cell separately by inputting the history data. For this purpose, a short URL and a QR code as shown in FIG. 6 are assigned to a battery mounted on an electric forklift, and a short URL input or a QR code is scanned to connect to a computerized management system according to the present invention, To manage and query the status and history data of the database. However, in the above restoration history management step (S90), it is necessary to input and manage restoration history of the storage battery and each cell in the computerized management system according to the "Lifetime Maintenance and Failure History Management System for Industrial Truck & desirable.

As described above, the present invention is not limited to the above-described embodiments of the present invention, but can be applied to a battery reclamation method according to the present invention without departing from the gist of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

2,
S10: Appearance confirmation step, S20: Pre-measurement (voltage, specific gravity)
S30: Sulfate removal step, S40: Electrolyte discharge step,
S411: internal cleaning liquid injection step, S42: electrolytic solution purification step,
S412: Step of injecting the electrode plate coating solution, Step S43: Step of adjusting the specific gravity of the electrolyte,
S413: internal cleaning / coating liquid discharging step,
S44: Re-injecting the electrolyte, S45: Replacing the cell (single cell)
S50: post measurement (voltage, specific gravity) step,
S60: battery cell restoration step, S70: battery cell restoration confirmation step,
S80: Commissioning confirmation step S90: Restoration history management
3,
100: battery (housing), 110: pole plate grounding,
120: one-touch cap, 200: electrolyte,
201: Sulfate sludge, 211: Discharge tank 1 (before purification)
212: discharge tank 2 (after purification), 220: purification filter,
300: rotary vane pump, 301: electrolyte hose,
302: electrolyte discharge hose, 303: electrolyte injection hose,
310: electrolyte discharge switch, 320: electrolyte injection switch,
330: Water level sensor, etc.
This is the same as that of FIG. 4.

Claims (8)

The present invention relates to a method of restoring an industrial lead-acid battery. A pre-measurement step of measuring the voltage of the battery by a meter to measure whether the battery can be recovered and the specific gravity of the electrolyte; A sulfate removing step of connecting the battery to a restorer and removing lead sulfate formed on the inner electrode plate; An electrolytic solution discharging step of discharging an electrolytic solution and a sulphate sludge into a discharge tank in a battery using a predetermined vacuum pump manufactured by the present invention; Injecting a liquid for cleaning the inside of the battery as one parallel step; Injecting an electrode plate coating liquid inside the battery into the inside of the battery; Discharging the cleaning liquid and the coating liquid; A step of repeating the step of washing the interior of the battery and discharging the washing liquid and the coating liquid after the electrode plate coating; In another parallel step, the step of purifying the sulphate sludge in the electrolyte discharged in the discharging step is performed by a filter; Adjusting the specific gravity of the electrolytic solution filtered with the sulfate sludge to a specific gravity suitable for the battery using the regeneration liquid and the distilled water; An electrolyte re-injection step of re-injecting the purified electrolyte after the two parallel steps are completed; Measuring the voltage of the battery again with the meter and measuring the specific gravity of the injected electrolyte; A step of replacing the cells (single cell) determined to be unable to be restored in the post-measurement step to return to the sulfate removal step; Restoring the battery by connecting a restoring device to the battery; Confirming the restored battery by cell in each cell; Installing the battery in the electric forklift, confirming the restoration; And
And inputting and managing the battery restoration history after all the processes are completed. According to this method, it is possible to remove the sulfate formed on the cell (single cell) electrode plate of each industrial battery, to replace the electrolytic solution, to maintain the proper specific gravity, and the like, How to restore and manage. The method according to claim 1,
Wherein the discharge and injection of the electrolyte solution and the injection and discharge of the cleaning liquid and the electrode plate coating liquid can be arbitrarily selected by using a predetermined rotary vane pump and precise capacity adjustment can be performed. Way. 3. The method according to claim 1 or 2,
Wherein the discharging and injecting operations of the electrolytic solution, the washing liquid and the washing liquid can be repeatedly performed using a rotary vane pump without puncturing the battery housing. The method according to claim 1,
And determining whether or not the battery can be recovered by comparing the measurement results of the measured voltage and specific gravity at a standard temperature of 25 DEG C in a pre-measurement step and a post-measurement step of voltage and specific gravity of each cell of the battery, How to restore and manage. 5. The method according to claim 1 or 4,
After the determination and restoration of the voltage and specific gravity of each cell of the battery by the measurement result, the battery is installed on the electric train and tested, and the output and BDI are checked and the total voltage is fully measured and the restoration is finally determined A method for restoration and management of industrial general flow type lead acid batteries. 6. The method according to any one of claims 1 to 5,
Wherein the recovery operation of each cell of the battery can be performed without separating the battery cell from the corresponding electric vehicle. The method according to claim 1,
A restoration and management method for an industrial general flow type lead acid battery characterized in that restoration history for each battery and each cell is input to a predetermined computer management system for lifetime management. 8. The method of claim 1 or 7,
The computerized management system can manage and manage lifetime by inputting the restoration history for each battery and cell. The computerized management system can manage and access to the smartphone or desktop using the shortened URL and QR code given beforehand to each battery or the train A method for restoration and management of industrial general flow type lead acid batteries.

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