RU223933U1 - Electrolyte neutralization device - Google Patents

Abstract

The utility model relates to electrolyte neutralization systems. The device contains a buffer tank installed in a single housing, configured to store unprocessed electrolyte entering through its inlet pipe, a tank configured to store a neutralizing additive in the form of an acid, a container configured to store a neutralizing additive in the form of an alkali, a reactor equipped with a drain pipe with a valve for recycled electrolyte and configured to introduce unprocessed electrolyte into it and through a dosing pump of a corresponding neutralizing additive, followed by mixing them. The device is equipped with an indication and control panel, a pH sensor for determining the pH of the electrolyte in the reactor, and a pH controller configured to regulate the supply of a neutralizing additive to the reactor depending on the readings of the pH sensor. The reactor is equipped with a temperature sensor connected to an indication and control panel. The buffer tank is equipped with electrolyte level sensors. Improves the quality of neutralization and brings acidic or alkaline electrolytes to a normal pH value. 1 ill.

Description

The utility model relates to electrolyte neutralization systems and can be used to neutralize and bring acidic or alkaline electrolytes to a normal pH value.

There are known devices for electrolyte neutralization [RU 61061, U1, N01M 10/02, 02/10/2007], having housings in the form of cubic tanks equipped with nozzles for supplying, filling, overflowing and draining liquid and gaseous materials, liquid level sensors, and pumps for transferring liquid and gaseous media, hydraulic, pneumatic and electrical transport systems, environmental protection systems, and additionally includes installations for external washing and internal washing of batteries, electrolyte neutralization and sludge disposal, and installations for draining electrolyte and internal washing are equipped with quantizers for placement, securing and turning over roll-out trolley with batteries, the electrolyte drainage installation has an intermediate tank with a transfer tray, and the internal flushing installation has a mechanism for vertical movement of the lifting bath with flushing solution and, additionally, a tray for discharging used flushing liquid and a device for monitoring the transparency of the used solution in the form of, for example, a transparent overflow pipe , located on the outer side of the installation housing, as well as a heated air supply pipe, the storage tank for the electrolyte to be neutralized has a sludge level control unit in the form of electrodes on the inner wall of the housing and test valves on the outside, as well as a system for dosed supply of the electrolyte to be neutralized in in the form of a pump with a control unit, the installation for electrolyte neutralization and sludge disposal is equipped with a hopper with a dispenser, for example, in the form of a slide unit, for loading and dosed supply of the neutralizer, a mixing rotor with a drive, an unloading unit with the ability to secure a container, for example a bag, for receiving sludge, and a slide for supplying sludge for further processing or disposal.

The disadvantage of the device is its relatively high complexity.

The closest in technical essence to the proposed one is a system for the preparation and regeneration of electrolyte [RU2471594, C1, B23H 1/10, 01/10/201], containing a tank, sensors for measuring electrolyte parameters, pumps, containers with reagents, dosing pumps and a two-section tank, sections of which are separated by an impenetrable partition, equipped with two-way electromechanical valves and a stirrer, and one section is equipped with an oxidation-reduction potential controller with a Redox potential sensor and a pH controller with a pH sensor and a temperature sensor, while both sections of the two-section tank are equipped with four level sensors float type, of which the first and third are installed at a level corresponding to the maximum filling of the sections, and the second and fourth are installed at a level corresponding to the minimum filling of the sections, moreover, two two-way electromechanical valves and three-way electromechanical valves are installed at the inlet of the hydraulic line.

In addition, in a particular case of the device, it is equipped with an automatic control system containing a main control unit made on a microcontroller, connected by a digital serial duplex data transmission channel with an indication unit containing a graphic touch display device, an electrolyte redox potential sensor controller, associated with a control unit to which the electrolyte pH controller is connected, as well as dosing pump controllers.

The disadvantage of the closest technical solution is the relatively low quality of neutralization and reduction of acidic or alkaline electrolytes to a normal pH value.

The problem that will be solved in the utility model is aimed at creating a device with a higher quality of neutralization and bringing acidic or alkaline electrolytes to a normal pH value.

The required technical result is to improve the quality of neutralization and bring acidic or alkaline electrolytes to a normal pH value.

The problem is solved, and the required technical result is achieved by the fact that the device for neutralizing the electrolyte contains a buffer tank installed in a single housing, configured to store unprocessed electrolyte entering through its inlet pipe, a tank, configured to store a neutralizing additive in the form of an acid, a tank, configured to store a neutralizing additive in the form of an alkali, a reactor equipped with a drain pipe with a recycled electrolyte valve and configured to introduce unprocessed electrolyte into it and through a dosing pump of the corresponding neutralizing additive with their subsequent mixing, while it is equipped with an indication and control panel, a pH sensor for determining the pH of the electrolyte in the reactor and a pH controller configured to regulate the supply of a neutralizing additive to the reactor depending on the readings of the pH sensor, moreover, the reactor is equipped with a temperature sensor connected to the display and control panel, and the buffer tank is equipped with electrolyte level sensors.

The drawing shows a device for neutralizing the electrolyte with main and auxiliary elements, where the following are indicated:

1 - buffer capacity;

2 - LV controller;

3 - display and control panel;

4 - reactor;

5 - dosing pumps for supplying acid and alkali;

6 - acid and alkali storage tanks;

7 - reactor temperature sensor;

8 - buffer tank liquid level sensors;

9 - reactor filling pump;

10 - pipe for filling the buffer tank;

11- drain pipe;

12 - drain valve;

13 - mixing pump;

14 - mixing unit;

15 - pH sensors;

16 - reactor filling valve.

The device for neutralizing the electrolyte contains a buffer tank 1 installed in a single housing, configured to store the unprocessed electrolyte entering through its inlet pipe 10 of the buffer tank, tanks 6, configured to store a neutralizing additive in the form of an acid and with the ability to store a neutralizing additive in the form of an alkali, reactor 4, made with the possibility of introducing unprocessed electrolyte into it and introducing neutralizing additives through the corresponding dosing pump 5, followed by mixing them, and equipped with a valve 12, pipe 11 for draining the processed electrolyte, as well as a PH sensor and PH controller 2, made with the ability to adjust the supply of neutralizing additives into the reactor depending on the readings of the PH 15 sensor.

In addition, the device is equipped with an indication and control panel 3 and a pH controller 2. As dosing pumps for the neutralizing additive, either an acid dosing pump or an alkali dosing pump is used. The reactor 4 is equipped with a temperature sensor 7 connected to the display and control panel 3, and the buffer tank 1 is equipped with sensors for the level of unprocessed electrolyte.

The device for neutralizing the electrolyte works as follows.

The device has four containers. Buffer tank 1 performs the function of storing unprocessed electrolyte entering through pipe 10, a tank in the form of a reactor 4, where mixing and adding a neutralizing substance either in the form of an alkali or in the form of an acid, depending on the pH of the solution, as well as two tanks 6 for storing acid and alkalis.

In the buffer tank 1 and in the reactor 4 there are three level 8 sensors, corresponding to the minimum, maximum and average between them - necessary for operation.

The process does not start until the buffer tank 1 average level sensor is triggered, after which the reactor filling pump 9 starts and valve 16 opens.

After the middle sensor 8 in the reactor 4 is triggered, the pump 9 is turned off, the valve 16 is closed and the stirring pump 13 is turned on. The pH controller 2 is also turned on, giving a signal to turn on the dosing pumps 6 supplying acid or alkali to the reactor 4 through the mixing unit 14. The pH controller 2 regulates the supply acid or alkali into reactor 4 depending on the readings of the pH sensor 15.

The neutralization process continues until the control sensor PH 15 is activated, signaling the normalization of PH values in reactor 4. After which the stirring pump 13 and the PH controller 2 are turned off and the drain valve 12 is opened. Through the open valve 12 and pipe 11, the neutralized electrolyte is drained from reactor 4. The cycle ends when the lower level sensor 8 of reactor 4 is triggered.

During the neutralization process, when the temperature sensor 7 in the reactor 4 is triggered, the pH controller 2 is turned off and the supply of acid and alkali is stopped until the reactor 4 cools down.

The lower level sensor 8 of the buffer tank 1 protects the pump 9 for filling the reactor 4 from dry running. The upper level sensor 8 of the buffer tank 1 outputs an overflow signal to the panel 3 and opens the contacts made to control the external pump that fills the tank 4 through the pipe 10.

When the upper level sensor 8 in reactor 4 is triggered, valve 16 for filling the reactor opens without turning on the pump 9 for filling reactor 4. In this case, part of the liquid from reactor 4 will return by gravity to container 1.

Before starting the neutralization process, the pH of the solution in the reactor is determined. pH > 7 means that the reactor contains an alkaline electrolyte. The higher the pH value, the higher the electrolyte concentration. The pH values of alkaline electrolytes can reach 13-14 units. Neutralization of the alkaline electrolyte is carried out by adding acid to the reactor with intense stirring. With a pH of 0.8 to 7, it corresponds to an acidic electrolyte, for which alkali is used to neutralize.

After adding each portion of the neutralizing agent, a mixing time is maintained and then the PH control is repeated. Portions of neutralizing agent are calculated depending on the type and concentration of acid or alkali and the difference between the normal and current pH value

After reaching the normal pH value = 7, the neutralization process is completed.

Thus, thanks to the improvements introduced into the device related to the possibility of neutralization with either an acid or an alkali, depending on the pH readings in the electrolyte being processed and providing control over the temperature regime, the quality of neutralization increases.

Claims (1)

A device for neutralizing an electrolyte, containing, installed in a single housing, a buffer tank configured to store unprocessed electrolyte entering through its inlet pipe, a tank configured to store a neutralizing additive in the form of an acid, a container configured to store a neutralizing additive in the form of an alkali, a reactor , equipped with a drain pipe with a recycled electrolyte valve and configured to introduce unprocessed electrolyte into it and through a dosing pump of the corresponding neutralizing additive with their subsequent mixing, while it is equipped with an indication and control panel, a pH sensor for determining the pH of the electrolyte in the reactor and a pH controller, configured to regulate the supply of a neutralizing additive to the reactor depending on the pH sensor readings, the reactor is equipped with a temperature sensor connected to the display and control panel, and the buffer tank is equipped with electrolyte level sensors.