Electrolytic manganese dioxide stripping device

Abstract

The invention discloses an electrolytic manganese dioxide stripping device which comprises a hoisting mechanism, a stripping box and a high-pressure water mechanism, the hoisting mechanism is arranged above the stripping box, an inlet of a polar plate is formed in the upper end of the stripping box, an outlet is formed in the lower end of the stripping box, two rollers and a limiting plate are arranged in the stripping box, and the two rollers are arranged on the inner walls, corresponding to the side faces of the polar plate, of the stripping box respectively. One end of the roller is connected with a driver on the outer wall of the stripping box, the other end of the roller extends out of the stripping box and is connected with a high-pressure water mechanism through a rotary joint, the roller is hollow and is provided with a spray head facing the side surface of the polar plate, and a limiting sensor for rotation of the roller is arranged on the stripping box; the two limiting plates are symmetrically arranged on the two sides of the polar plate, and the distance between the limiting plates is larger than the thickness of the polar plate. Polar plate damage and noise caused by beating are avoided, high-pressure water is intermittently washed, the polar plate is repeatedly vibrated with the limiting plate, and the stripping effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrolytic manganese dioxide preparation, in particular to a stripping device for electrolytic manganese dioxide. BACKGROUND

[0002] Electrolytic manganese dioxide (EMD) is an excellent depolarizer for batteries, which has the characteristics of large discharge capacity, strong activity, small volume and long service life compared with dry batteries produced by natural discharge of manganese dioxide, so electrolytic manganese dioxide becomes a particularly important raw material for the battery industry. The production process of electrolytic manganese dioxide generally includes leaching, impurity removal and purification, electrolysis, stripping, rinsing and grinding processes. When stripping, the electrode plate is hoisted to the stripping device, and artificial or mechanical knocking is performed on it to strip the electrolytic manganese dioxide on the electrode plate. However, knocking can cause damage to the electrode plate, and the noise is loud, and the stripping effect needs to be improved. SUMMARY

[0003] The purpose of the present application is to provide a stripping device for electrolytic manganese dioxide to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a stripping device for electrolytic manganese dioxide, comprising a hoisting mechanism, a stripping box and a high-pressure water mechanism, the hoisting mechanism is arranged above the stripping box, the upper end of the stripping box is provided with an inlet for the electrode plate, the lower end of the stripping box is provided with an outlet, rollers and limiting plates are arranged in the stripping box, two rollers are arranged in the inner wall of the stripping box corresponding to the side surface of the electrode plate, one end of the roller is connected with a drive device on the outer wall of the stripping box, the other end of the roller extends out of the stripping box and is connected with the high-pressure water mechanism through a rotary joint, the roller is hollow and provided with a nozzle facing the side surface of the electrode plate, a limiting sensor for the rotation of the roller is arranged on the stripping box; the limiting plates are arranged symmetrically on both sides of the electrode plate, and the distance between the limiting plates is greater than the thickness of the electrode plate.

[0005] Preferably, the distance between the rollers and the lower end of the stripping box is different.

[0006] Preferably, a plurality of nozzles are uniformly arranged along the width of the electrode plate.

[0007] Preferably, the limiting plates are located below the rollers.

[0008] The present application also provides a stripping method for electrolytic manganese dioxide, comprising the following steps:

[0009] (1) The hoisting mechanism puts the electrode plate after electrolysis into the stripping box through the inlet of the stripping box;

[0010] (2) start the driver, drive the roller rotation, at the same time start high pressure water mechanism, intermittent high pressure water delivery to the inside of the roller, and through the nozzle on the roller plate side, hoisting mechanism according to the spray washing up and down the plate, a roller water spray time for another roller intermittent time;

[0011] (3) high pressure water and stripping of electrolytic manganese dioxide through the stripping tank outlet to the next process, the lifting mechanism will be lifted out of the stripping tank plate.

[0012] Compared with the prior art, the beneficial effects of the present application are: the present application through high pressure water to the plate, the electrolytic manganese dioxide on the plate is stripped, avoids the damage of the plate caused by knocking and the noise generated, the high pressure water intermittent flushing, the plate repeatedly and the vibration of the limiting plate, the stripping effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic diagram of the present application.

[0014] Figure 2 is a side view structural schematic diagram of the present application.

[0015] Figure 3 is a schematic diagram of the internal structure of the stripping tank of the present application.

[0016] Figure 4 is the A-A view of the present application. Figure 3

[0017] Figure 5 is a structural schematic diagram of the present application when lifting the plate.

[0018] Figure 6 is the B-B view of the present application. Figure 5 DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with specific embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0020] As Figures 1-6 ​​As shown, the present invention discloses an electrolytic manganese dioxide stripping device, comprising a hoisting mechanism 1, a stripping box 2, and a high-pressure water mechanism. The hoisting mechanism 1 is located above the stripping box 2 and can be a gantry crane, moving between the electrolytic cell and the stripping box 2 to move the electrode plate 5 from the electrolytic cell into the stripping box 2. The upper end of the stripping box 2 has an inlet for the electrode plate 5, and the lower end has an outlet. Two rollers 3 and two limiting plates 6 are installed inside the stripping box 2, respectively located on the inner wall of the stripping box 2 corresponding to the side of the electrode plate 5. One end of each roller 3 is connected to a driver 9 on the outer wall of the stripping box 2, and the other end extends out of the stripping box 2 and is connected to the high-pressure water mechanism via a rotary joint. The rollers 3 are hollow and have nozzles 4 facing the side of the electrode plate 5. A limiting sensor for the rotation of the rollers 3 is installed on the stripping box 2. Two limiting plates 6 are provided, symmetrically arranged on both sides of the electrode plate 5, with the distance between the limiting plates 6 greater than the thickness of the electrode plate 5.

[0021] In a specific implementation of this invention, the peeling box 2 is a square hollow cylinder with an inlet located at the upper center. The length and width of the inlet are slightly larger than the length and width of the electrode plate. After the electrode plate 5 is placed inside the peeling box 2, the rollers 3 are located on both sides of the electrode plate 5. The two ends of the rollers 3 rotate on the side wall of the peeling box 2 via bearings. The rollers 3 are at different heights from the lower end of the peeling box 2 and are arranged laterally. Multiple nozzles 4 on the rollers 3 are evenly arranged along the width of the electrode plate 5, i.e., multiple nozzles are evenly arranged along the length of the rollers 3. The limiting plate 6 is located below the rollers 3. The high-pressure water mechanism includes a water tank 7, a high-pressure pump, and a pipe 8. The water tank 7, the high-pressure pump, and the pipe 8 are connected in sequence. The pipe 8 is connected to a rotary joint. The high-pressure pump delivers water from the water tank 7 to the rollers 3. Each roller 3 is equipped with a corresponding high-pressure water mechanism, or the water tank 7 can be shared. The high-pressure water mechanism pumps water intermittently, and the nozzles 4 spray water intermittently. The hoisting mechanism 1 is equipped with a lifting mechanism and a clamping mechanism. The clamping mechanism holds the electrode plate, and the lifting mechanism raises and lowers the clamping mechanism. The above structure is existing technology and will not be described in detail. The driver 9 can adopt a structure of a motor and a reducer, and the motor can be a servo motor.

[0022] The present invention utilizes the above-mentioned device to strip electrolytic manganese dioxide. The stripping method includes the following steps: (1) The hoisting mechanism places the electrolytically stripped electrode plate into the stripping box through the inlet of the stripping box; (2) The driver is activated to drive the roller to rotate within a certain range, and the high-pressure water mechanism is activated at the same time to intermittently deliver high-pressure water to the inside of the roller and spray it onto the side of the electrode plate through the nozzle on the roller. The hoisting mechanism moves the electrode plate up and down according to the spraying situation. The spraying time of one roller is the spraying interval of the other roller, that is, they are staggered. This can be controlled by the controller. For example, the spraying time and the interval can be set by the controller; (3) The high-pressure water and the stripped electrolytic manganese dioxide flow to the next process through the outlet of the stripping box, and the hoisting mechanism lifts the electrode plate out of the stripping box.

[0023] Finally, it should be noted that the above-described embodiments are merely specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the same. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that any person skilled in the art can still modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features, within the technical scope disclosed by the present application. The modifications, changes or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An electrolytic manganese dioxide stripping device, characterized by: The device comprises a lifting mechanism, a stripping box and a high-pressure water mechanism, the lifting mechanism is arranged above the stripping box, the stripping box is provided with an inlet of the polar plate at the upper end and an outlet at the lower end, rollers and limiting plates are arranged in the stripping box, two rollers are arranged in the inner wall of the stripping box corresponding to the side of the polar plate, one end of the roller is connected with a driver of the outer wall of the stripping box, the other end of the roller extends out of the stripping box and is connected with the high-pressure water mechanism through a rotary joint, the roller is hollow and provided with a nozzle facing the side of the polar plate, and a limiting sensor for the rotation of the roller is arranged on the stripping box; the limiting plates are arranged symmetrically on both sides of the polar plate, and the distance between the limiting plates is greater than the thickness of the polar plate.

2. The electrolytic manganese dioxide stripping apparatus of claim 1, wherein: The distance between the roller and the lower end of the stripping box is different.

3. The electrolytic manganese dioxide stripping apparatus of claim 1, wherein: The nozzles are uniformly arranged along the width of the polar plate.

4. The electrolytic manganese dioxide stripping apparatus of claim 1, wherein: The limiting plates are located below the rollers.

5. An electrolytic manganese dioxide stripping method, characterized by, The device comprises the following steps: (1) the lifting mechanism puts the polar plate after electrolysis into the stripping box through the inlet of the stripping box; (2) the driver is started to drive the rotation of the roller, and the high-pressure water mechanism is started to intermittently deliver high-pressure water to the inside of the roller and spray it to the side of the polar plate through the nozzle on the roller, the lifting mechanism moves the polar plate up and down according to the spray washing condition, the water spraying time of one roller is the intermittent time of the water spraying of the other roller; (3) the high-pressure water and the stripped electrolytic manganese dioxide flow to the next process through the outlet of the stripping box, and the lifting mechanism lifts the polar plate out of the stripping box.

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