Electrolysis stop driving alkali liquid direct supply device

Abstract

The utility model discloses an electrolytic parking car lye direct supply device relates to electrolytic device technical field, including device body, still including feeding mechanism and cooling mechanism, the feeding mechanism includes the liquid storage cylinder, the liquid storage cylinder bottom is equipped with the blanking tube, the liquid storage cylinder top is equipped with the apron, the apron one end inner wall is equipped with the liquid inlet pipe, the cooling mechanism includes the fixed sleeve of setting up in the liquid storage cylinder outside, the fixed sleeve sets up in the blanking tube outside, the apron top is equipped with the drive component, the drive component output end is equipped with the cleaning plate. The utility model discloses through the gap between fixed sleeve and liquid storage cylinder addition cooling liquid, can cool the high temperature lye of liquid storage cylinder inside, the drive component drive cleaning plate rotates simultaneously, can accelerate the cooling of lye, can clean the liquid storage cylinder inner wall simultaneously, and then can conveniently add low temperature lye to the electrolytic cell inside, can improve the efficiency of electrolysis.

Description

Technical Field

[0001] This utility model relates to the field of electrolysis equipment technology, specifically to a device for direct supply of alkali solution during electrolysis shutdown and startup. Background Technology

[0002] The single-loop start-up and shutdown system of the electrolysis unit is mainly used for cathode cooling after the system is shut down when one or two loops need maintenance due to a fault; and for cathode heating during the initial stage after maintenance of one or two loops, when the electrolysis unit is ready for start-up. Whether storing, heating, or cooling the electrolyzer in a single loop, small amounts of fresh 28-30% alkali solution are needed multiple times to maintain the alkali concentration of the single-loop system. Currently, the alkali replenishment for the single-loop system of the third-phase electrolysis unit can only come from the uncooled 80°C hot alkali solution in the entire loop system. During the filling stage, the temperature of the alkali solution entering the electrolyzer reaches as high as 45.3367°C, and the tank temperature reaches as high as 46.0°C after filling. Under these tank temperature conditions, firstly, there is a risk of pinholes in the ion-exchange membrane, and even membrane tearing; secondly, at a tank temperature above 45.0°C, without polarization (polarization cannot be used during the filling process), there is a risk of damage to the cathode coating, affecting the subsequent operating performance of the electrolyzer. Meanwhile, after the electrolytic cell is shut down and left to stand for 24 hours, the alkali concentration in the cell is increased from 24% to 28% by circulation and replacement. The entire storage process takes about 2.16 hours.

[0003] A device for supplying alkali to a wastewater treatment tank for microcrystalline graphite purification, disclosed in CN217808897U, includes a drain pipe, a replenishment pipe, an alkali storage tank, a flow meter, valves, and a squeezing mechanism. This invention improves the efficiency of alkali supply by incorporating a squeezing mechanism within the alkali storage tank. The first and second pressure plates move vertically, squeezing the alkali downwards and allowing it to flow rapidly into the drain pipe and into the wastewater treatment tank. Simultaneously, the second pressure plate rotates a scraper to remove alkali adhering to the inner wall of the storage tank, reducing resource waste caused by alkali adhering to the inner wall.

[0004] The existing technology has the following shortcomings: When adding alkali to the electrolytic cell, the added alkali cannot be cooled quickly, which means that it takes a lot of time for the alkali inside the electrolytic cell to reach the appropriate temperature. This leads to a longer shutdown time for the electrolytic unit, which can easily damage the electrolytic cell and affect the working efficiency of the electrolysis operation. Utility Model Content

[0005] The purpose of this invention is to provide a device for direct supply of alkali solution during electrolysis start-stop. By adding coolant to the gap between the fixed sleeve and the storage tank, the high-temperature alkali solution inside the storage tank can be cooled down. At the same time, the driving component drives the cleaning plate to rotate, which can accelerate the cooling of the alkali solution and clean the inner wall of the storage tank, thereby solving the above-mentioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for direct supply of alkali solution during electrolysis start-stop and restart, comprising a device body, and further comprising:

[0007] The feeding mechanism is located on the top of the device body and the cooling mechanism is located outside the feeding mechanism;

[0008] The feeding mechanism includes a liquid storage cylinder, a discharge pipe is fixedly installed at the bottom of the liquid storage cylinder, a cover plate is provided at the top of the liquid storage cylinder, and a liquid inlet pipe is fixedly installed on the inner wall of one end of the cover plate;

[0009] The cooling mechanism includes a fixed sleeve sleeved on the outside of the liquid storage cylinder. The fixed sleeve is sleeved on the outside of the feed pipe. A coolant inlet pipe is fixedly installed on the top of the outer wall of one end of the fixed sleeve, and a coolant outlet pipe is fixedly installed on the bottom of the outer wall of the other end of the fixed sleeve. A driving component is provided on the top of the cover plate. The output end of the driving component is inserted into the inside of the liquid storage cylinder and a cleaning plate is fixedly installed thereon.

[0010] Preferably, the device body includes an electrolytic cell, a controller is fixedly installed on one side of the outer wall of the electrolytic cell, a discharge pipe is fixedly installed at the bottom of one end of the outer wall of the electrolytic cell, and the top end of the electrolytic cell is fixedly connected to the bottom of the fixed sleeve.

[0011] Preferably, a rotating shaft is rotatably mounted on the bottom of the inner wall of the electrolytic cell, and multiple stirring rods are fixedly sleeved on the outside of the rotating shaft.

[0012] Preferably, a servo motor is fixedly installed on the outer wall of one end of the electrolytic cell, and the servo motor is connected to one end of the rotating shaft through an output shaft. The driving component includes components rotatably mounted on the cover plate.

[0013] Preferably, the cleaning plate is fixedly sleeved on the outer wall of the mounting rod, and a driven gear is fixedly sleeved on the outer side of the top of the mounting rod.

[0014] Preferably, a drive motor is fixedly installed at the top of the cover plate away from the liquid inlet pipe, and a drive gear is fixedly sleeved on the output shaft of the drive motor, and the drive gear meshes with the driven gear.

[0015] Preferably, connecting rods are fixedly installed at both ends of the inner wall of the fixed sleeve, and the two connecting rods are respectively fixedly connected to the outer walls at both ends of the liquid storage cylinder.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] 1. Coolant can be added to the gap between the fixed sleeve and the storage tank through the coolant inlet pipe, thereby cooling the high-temperature alkaline solution inside the storage tank. This allows the alkaline solution to quickly reach the temperature required by the electrolytic cell. At the same time, the drive component drives the cleaning plate to rotate, which can stir the alkaline solution, accelerate the cooling of the alkaline solution, and clean the inner wall of the storage tank to avoid alkaline residue. This makes the supply and cooling of alkaline solution more convenient, shortens the downtime, reduces damage to the electrolytic cell, and improves the efficiency of electrolysis.

[0018] 2. The rotating shaft is driven by a servo motor, which in turn drives the stirring rod to stir the alkaline solution inside the electrolytic cell. This stirring ensures thorough mixing of the added alkaline solution with the solution, rapidly increasing the concentration of the alkaline solution to meet production requirements. Consequently, downtime is reduced, and the efficiency of electrolysis is improved. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a front vertical sectional view of the present invention.

[0022] Figure 3 This utility model Figure 2 Enlarged view of part A in the image.

[0023] Figure 4 This is an exploded view of the device body of this utility model.

[0024] Figure 5 This is an exploded view of the feeding mechanism and cooling mechanism of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Main body of the device; 101. Electrolytic cell; 102. Controller; 103. Discharge pipe; 104. Rotating shaft; 105. Servo motor; 106. Stirring rod;

[0027] 2. Feeding mechanism; 201. Liquid storage tank; 202. Discharge pipe; 203. Cover plate; 204. Liquid inlet pipe;

[0028] 3. Cooling mechanism; 301. Fixed sleeve; 302. Connecting rod; 303. Coolant inlet pipe; 304. Coolant outlet pipe; 305. Mounting rod; 306. Driven gear; 307. Cleaning plate; 308. Drive motor; 309. Driving gear. Detailed Implementation

[0029] This utility model provides, for example Figure 1 The electrolytic shutdown and start-up alkali solution direct supply device shown includes a device body 1, and further includes:

[0030] The feeding mechanism 2 is located on the top of the device body 1, and the cooling mechanism 3 is located outside the feeding mechanism 2.

[0031] To facilitate the addition of low-temperature alkaline solution to the interior of device body 1, such as... Figure 1-5 As shown, the feeding mechanism 2 includes a liquid storage cylinder 201, a discharge pipe 202 fixedly installed at the bottom of the liquid storage cylinder 201, a cover plate 203 provided at the top of the liquid storage cylinder 201, and an inlet pipe 204 fixedly installed on the inner wall of one end of the cover plate 203. The cooling mechanism 3 includes a fixed sleeve 301 sleeved on the outside of the liquid storage cylinder 201, the fixed sleeve 301 sleeved on the outside of the discharge pipe 202, a coolant inlet pipe 303 fixedly installed on the top of the outer wall of one end of the fixed sleeve 301, and a coolant outlet pipe 304 fixedly installed on the bottom of the outer wall of the other end of the fixed sleeve 301. A driving component is provided on the top of the cover plate 203, and the output end of the driving component is inserted into the liquid storage cylinder 201. A cleaning plate 307 is fixedly installed inside the liquid cylinder 201. High-temperature alkali solution can be added into the liquid storage cylinder 201 through the liquid inlet pipe 204, and coolant can be added into the gap between the fixed sleeve 301 and the liquid storage cylinder 201 through the coolant inlet pipe 303. The alkali solution inside the liquid storage cylinder 201 can be cooled through heat exchange. The cooled coolant is discharged through the coolant outlet pipe 304. At the same time, the cooled alkali solution can be added into the device body 1 through the feed pipe 202. Meanwhile, the driving component drives the cleaning plate 307 to rotate, which can accelerate the cooling of the alkali solution and clean the inner wall of the liquid storage cylinder 201.

[0032] To shorten the mixing time of the alkali solution, such as Figure 1-2 and Figure 4-5As shown, the device body 1 includes an electrolytic cell 101. A controller 102 is fixedly installed on one side of the outer wall of the electrolytic cell 101. A discharge pipe 103 is fixedly installed on the bottom of the outer wall of one end of the electrolytic cell 101. The top end of the electrolytic cell 101 is fixedly connected to the bottom of a fixed sleeve 301. Connecting rods 302 are fixedly installed on both ends of the inner wall of the fixed sleeve 301. The two connecting rods 302 are respectively fixedly connected to the outer walls of both ends of the storage cylinder 201. A rotating shaft 104 is rotatably installed on the bottom of the inner wall of the electrolytic cell 101. Multiple stirring rods 106 are fixedly sleeved on the outside of the rotating shaft 104. A servo motor is fixedly installed on the outer wall of one end of the electrolytic cell 101. 105. The servo motor 105 is connected to one end of the rotating shaft 104 via an output shaft. The electrolytic cell 101 can install and fix the fixed sleeve 301. The fixed sleeve 301 is connected and fixed to the liquid storage tank 201 via a connecting rod 302. The controller 102 can control the operation of the device. At the same time, the controller 102 controls the servo motor 105 to drive the rotating shaft 104 to rotate, which can drive the stirring rod 106 to stir the added alkali solution, so that it can be fully mixed, and the concentration of the alkali solution can quickly reach the requirements of electrolysis, thereby shortening the shutdown time and improving the efficiency of electrolysis.

[0033] In order to stably drive the cleaning plate 307 to rotate, such as Figure 2-3 and Figure 5 As shown, the driving component includes a mounting rod 305 rotatably mounted on the inner wall of the cover plate 203, a cleaning plate 307 fixedly sleeved on the outer wall of the mounting rod 305, a driven gear 306 fixedly sleeved on the outer side of the top of the mounting rod 305, a drive motor 308 fixedly mounted on the top of the cover plate 203 away from the liquid inlet pipe 204, and a drive gear 309 fixedly sleeved on the output shaft of the drive motor 308. The drive gear 309 meshes with the driven gear 306. The cover plate 203 can install and fix the mounting rod 305 and the drive motor 308. The controller 102 causes the drive motor 308 to drive the drive gear 309 to rotate. Through the meshing transmission between the drive gear 309 and the driven gear 306, the mounting rod 305 rotates accordingly, which in turn drives the cleaning plate 307 to rotate, which can accelerate the cooling of the alkali solution and clean the inner wall of the liquid storage cylinder 201.

[0034] When adding alkali solution into the electrolytic cell 101, high-temperature alkali solution can be added into the storage tank 201 through the inlet pipe 204. Simultaneously, coolant is added into the gap between the fixed sleeve 301 and the storage tank 201 through the coolant inlet pipe 303. Through heat exchange, the high-temperature alkali solution inside the storage tank 201 is cooled down. The cooled solution is discharged through the coolant outlet pipe 304. At the same time, the controller 102 causes the drive motor 308 to drive the drive gear 309 to rotate. Through the meshing action between the drive gear 309 and the driven gear 306, the mounting rod 305 rotates accordingly, which can drive the cleaning plate 307 to agitate the alkali solution. Stirring accelerates the cooling of the alkali solution and cleans the inner wall of the storage tank 201. The cooled alkali solution is added to the electrolytic cell 101 through the feed pipe 202. Then, the servo motor 105 drives the rotating shaft 104 to rotate through the controller 102, so that the stirring rod 106 can stir and mix the added alkali solution, making the mixing of the alkali solution more thorough and enabling it to quickly reach the required concentration. This shortens the downtime and improves the processing efficiency of electrolysis. This embodiment specifically solves the problem in the prior art that the alkali solution cannot be cooled quickly and reach a suitable concentration, resulting in long downtime and damage to the electrolytic cell.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for direct supply of alkali solution during electrolysis shutdown and startup, comprising a device body (1), characterized in that, Also includes: The feeding mechanism (2) is located on the top of the device body (1) and the cooling mechanism (3) is located on the outside of the feeding mechanism (2); The feeding mechanism (2) includes a liquid storage cylinder (201), a discharge pipe (202) is fixedly installed at the bottom of the liquid storage cylinder (201), a cover plate (203) is provided at the top of the liquid storage cylinder (201), and an inlet pipe (204) is fixedly installed on the inner wall of one end of the cover plate (203); The cooling mechanism (3) includes a fixed sleeve (301) sleeved on the outside of the liquid storage cylinder (201), the fixed sleeve (301) sleeved on the outside of the feed pipe (202), a coolant inlet pipe (303) fixedly installed on the top of the outer wall of one end of the fixed sleeve (301), a coolant outlet pipe (304) fixedly installed on the bottom of the outer wall of the other end of the fixed sleeve (301), a driving component is provided on the top of the cover plate (203), and the output end of the driving component is inserted into the inside of the liquid storage cylinder (201) and a cleaning plate (307) is fixedly installed thereon.

2. The electrolytic shutdown and start-up alkali solution direct supply device according to claim 1, characterized in that: The device body (1) includes an electrolytic cell (101), a controller (102) is fixedly installed on one side of the outer wall of the electrolytic cell (101), a discharge pipe (103) is fixedly installed at the bottom of one end of the outer wall of the electrolytic cell (101), and the top end of the electrolytic cell (101) is fixedly connected to the bottom of the fixed sleeve (301).

3. The electrolytic shutdown and start-up alkali solution direct supply device according to claim 2, characterized in that: A rotating shaft (104) is rotatably mounted on the bottom of the inner wall of the electrolytic cell (101), and a plurality of stirring rods (106) are fixedly sleeved on the outside of the rotating shaft (104).

4. The electrolysis shutdown and start-up alkali solution direct supply device according to claim 3, characterized in that: A servo motor (105) is fixedly installed on the outer wall of one end of the electrolytic cell (101). The servo motor (105) is connected to one end of the rotating shaft (104) through an output shaft. The driving component includes a mounting rod (305) that is rotatably installed on the inner wall of the cover plate (203).

5. The electrolytic shutdown and start-up alkali solution direct supply device according to claim 4, characterized in that: The cleaning plate (307) is fixedly sleeved on the outer wall of the mounting rod (305), and a driven gear (306) is fixedly sleeved on the outer side of the top of the mounting rod (305).

6. The electrolytic shutdown and start-up alkali solution direct supply device according to claim 5, characterized in that: A drive motor (308) is fixedly installed at the top of the cover plate (203) away from the liquid inlet pipe (204). The output shaft of the drive motor (308) is fixedly sleeved with a drive gear (309), and the drive gear (309) meshes with the driven gear (306).

7. The electrolytic shutdown and start-up alkali solution direct supply device according to claim 1, characterized in that: Both ends of the inner wall of the fixed sleeve (301) are fixedly installed with connecting rods (302), and the two connecting rods (302) are respectively fixedly connected to the outer walls of both ends of the liquid storage cylinder (201).

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