Electrolytic bath

Abstract

The utility model discloses an electrolytic bath, which belongs to the field of electrolytic baths and comprises two water distribution plates, an ionic membrane, an anode plate and a cathode plate, the ionic membrane is arranged between the two water distribution plates, a water distribution cavity and a mounting cavity are arranged in each water distribution plate, the water distribution cavity is positioned above the mounting cavity, a water inlet hole is arranged at the upper part of each water distribution plate, and a water outlet hole is arranged at the lower part of each water distribution plate. A plurality of water distribution holes are formed in the side walls, close to the ionic membrane, of the water distribution plates, the water inlet holes and the water distribution holes are all communicated with the water distribution cavity, the anode plates and the cathode plates are fixed in the mounting cavities of the two water distribution plates respectively, discharging channels are formed between the anode plates and the bottom walls of the mounting cavities and between the cathode plates and the bottom walls of the mounting cavities, and water outlet holes are formed in the lower portions of the water distribution plates. The water outlet holes are communicated with the discharging channel, and gaps are formed between the anode plate and the cathode plate and the ionic membrane. The electrolytic bath disclosed by the utility model can be used for effectively removing solid particles of insoluble substances or indissolvable substances without shutdown cleaning.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of electrolytic cell, especially relates to an electrolytic cell. BACKGROUND

[0002] In the field of modern electrochemical industry, electrolytic cell devices play a very key role, and are widely used in many industries, including but not limited to metal smelting, chemical synthesis, environmental protection treatment and new energy development. The core working principle of the electrolytic cell device is based on passing direct current into the electrolyte solution, so that the oxidation and reduction reactions occur at the cathode and anode, thereby realizing the transformation and preparation of substances.

[0003] However, the current electrolytic cell device faces a significant technical challenge in actual operation. That is, during the electrolysis process, as the reaction progresses and the solution environment changes, insoluble or sparingly soluble substances are easily precipitated from the solution. Once these insoluble or sparingly soluble substances appear, they will adhere to the electrode or membrane according to the laws of physics and chemistry. For the electrode, this adhesion will cause the effective reaction area of the electrode surface to decrease sharply. For example, in the process of metal electrolytic refining, if insoluble impurities adhere to the surface of the anode, it will hinder the normal dissolution of the anode metal, greatly reducing the electrolysis current efficiency; on the cathode, if impurities adhere, it will affect the deposition rate and quality of metal ions, leading to problems such as decreased purity of the prepared metal product and uneven crystal structure.

[0004] From the perspective of the membrane, if insoluble substances adhere, it will severely damage the selective permeation function of the membrane. Taking ion exchange membrane as an example, it is originally designed to maintain the electrochemical balance and reaction efficiency in the electrolytic cell by precisely controlling the migration of ions. However, the adhesion of insoluble substances will block the membrane pores, change the ion conduction performance of the membrane, hinder the migration of ions, and thus increase the electrical resistance in the electrolytic cell. This not only consumes more electrical energy and increases production costs, but also causes the overall performance of the device to decline and deteriorate. In some continuous production industrial electrolytic cell devices, this performance deterioration will accumulate over time, eventually causing the entire device to malfunction, requiring frequent shutdown for cleaning and maintenance. This will undoubtedly cause significant economic losses, reduce production efficiency, and weaken the competitiveness of products in the market for large-scale industrial production. Therefore, there is an urgent need for an electrolytic cell that can effectively remove insoluble or sparingly soluble solid particles without stopping for cleaning. SUMMARY

[0005] The utility model aims at providing an electrolytic cell to overcome at least one of the above-mentioned defects in the prior art.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a kind of electrolytic cell, including two water distribution plates, ion membrane, anode plate and cathode plate, ion membrane is provided between two water distribution plates, the inside of water distribution plate has water distribution cavity and mounting cavity, water distribution cavity is located above mounting cavity, the upper portion of water distribution plate has water inlet, the side wall of water distribution plate close to ion membrane has several water distribution holes, water inlet and water distribution hole are all communicated with water distribution cavity, anode plate and cathode plate are fixed in the mounting cavity of two water distribution plates respectively, anode plate and cathode plate are all communicated with the bottom wall of mounting cavity and have discharge channel, the lower portion of water distribution plate has water outlet, water outlet is communicated with discharge channel, anode plate and cathode plate are all communicated with ion membrane and have gap.

[0008] Preferably, the several water distribution holes are equidistantly distributed along the length direction of the water distribution plate.

[0009] Preferably, the front and rear side walls of the upper portion of the water distribution plate each have a water inlet, and the front and rear side walls of the lower portion of the water distribution plate each have a water outlet.

[0010] Preferably, the ratio of the width to the height of the water distribution plate is 1-100:1.

[0011] Preferably, the height of the discharge channel is 3-100 mm.

[0012] Preferably, the material of the water distribution plate is polyvinyl chloride, polypropylene or polyethylene.

[0013] Preferably, the ion membrane is one of a negative ion membrane, a positive ion membrane and a bipolar membrane.

[0014] Preferably, the anode plate and the cathode plate are each one of a stainless steel plate, a titanium plate, a titanium plate with a metal oxide coating, a platinum plate and a copper plate.

[0015] Preferably, the thickness of the anode plate and the cathode plate is each 0.5-30 mm, and the width of the mounting cavity is 1-60 mm.

[0016] Preferably, the thickness of the side wall of the water distribution plate is 5-30 mm.

[0017] The utility model has the advantages that:

[0018] 1. The anode plate and the cathode plate are built-in the water distribution plate, and the water flow direction is from top to bottom. When positive ions and OH - ions generated by the cathode plate combine, or negative ions and H + ions generated by the anode combine to form insoluble or hardly soluble substances, due to the effect of gravity and the scouring effect of water flow from top to bottom, the solid particles enter the discharge channel along the water flow and are finally discharged through the water outlet, so that the insoluble or hardly soluble solid particles can be effectively removed without stopping and cleaning. The utility model can be used in the preparation of an insoluble or hardly soluble material liquid system, and can avoid the performance reduction or attenuation of equipment caused by the precipitation and adhesion of solute.

[0019] 2, through the setting of water distribution hole, realize uniform water distribution, ensure uniform flushing to insoluble or difficultly soluble particle.

[0020] 3, adopt the way of front and back water in and out, the processing efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the sectional view structural schematic diagram of the utility model.

[0022] Figure 2 It is Figure 1 The enlarged structural schematic diagram of A in figure 1.

[0023] Figure 3 It is the three-dimensional structural schematic diagram of the water distribution plate and cathode plate of the utility model.

[0024] Figure 4 It is the explosive structural schematic diagram of the utility model.

[0025] The mark in the drawing is: 1-cathode plate, 2-anode plate, 3-ion exchange membrane, 4-water distribution plate, 41-water distribution cavity, 42-mounting cavity, 43-water distribution hole, 44-discharge channel, 45-water outlet, 46-water inlet. DETAILED DESCRIPTION

[0026] The utility model will be further described in combination with the drawings and specific implementation.

[0027] The contents not described in detail in the specification belong to the prior art known to the person skilled in the art.In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.In addition, the terms "first", "second", "third" and the like are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0028] As Figures 1 to 4As shown, the electrolytic cell provided in this embodiment includes two water distribution plates 4, an ion exchange membrane 3, an anode plate 2, and a cathode plate 1. The ion exchange membrane 3 is disposed between the two water distribution plates 4. The interior of the water distribution plate 4 has a water distribution cavity 41 and an installation cavity 42. The water distribution cavity 41 is located above the installation cavity 42. The upper part of the water distribution plate 4 has a water inlet hole 46. The side wall of the water distribution plate 4 near the ion exchange membrane 3 has several water distribution holes 43. The water inlet hole 46 and the water distribution holes 43 are all connected to the water distribution cavity 41. The anode plate 2 and the cathode plate 1 are respectively fixed in the installation cavity 42 of the two water distribution plates 4. The anode plate 2 and the cathode plate 1 are both connected to the bottom wall of the installation cavity 42 and have a discharge channel 44. The lower part of the water distribution plate 4 has a water outlet hole 45, which is connected to the discharge channel 44. The anode plate 2 and the cathode plate 1 are both connected to the ion exchange membrane 3 and have gaps to allow water to flow through. In this embodiment, the anode plate 2 is located inside the water distribution plate 4 on the left, and the cathode plate 1 is located inside the water distribution plate 4 on the right. The anode plate 2 is electrically connected to the positive terminal of the power supply, and the cathode plate 1 is electrically connected to the negative terminal of the power supply. This invention integrates the anode plate 2 and cathode plate 1 within the water distribution plate 4, using a top-in, bottom-out water flow. When positive ions react with the OH- ions generated by the cathode plate 1... - Combination, or, negative ions react with H+ generated at the anode. + When insoluble or sparingly soluble substances are formed, the solid particles are carried downwards by gravity and the scouring effect of the downward-flowing water to the discharge channel 44, and finally discharged through the outlet 45. This effectively removes insoluble or sparingly soluble solid particles without requiring machine shutdown for cleaning. It can be used in liquid systems for preparing insoluble or sparingly soluble substances. This avoids performance degradation or attenuation caused by solute precipitation or adhesion.

[0029] Several water distribution holes 43 are evenly spaced along the length of the water distribution plate 4. The arrangement of the water distribution holes 43 ensures uniform water distribution and guarantees uniform flushing of insoluble or sparingly soluble particles.

[0030] The water distribution plate 4 has water inlet holes 46 on both the front and rear side walls at the top, and water outlet holes 45 on both the front and rear side walls at the bottom. This simultaneous front and rear water inlet and outlet method results in higher treatment efficiency.

[0031] The width-to-height ratio of the water distribution plate 4 is 1-100:1. The height of the discharge channel 44 is 3-100mm. The material of the water distribution plate 4 is polyvinyl chloride, polypropylene, or polyethylene. The ion exchange membrane 3 is one of anion exchange membrane 3, cation exchange membrane 3, or bipolar membrane. The anode plate 2 and cathode plate 1 are both made of stainless steel, titanium, titanium with metal oxide coating, platinum, or copper. The width-to-height ratio of the water distribution plate 4, the height of the discharge channel 44, the material of the water distribution plate 4, and the specific selection of the anode plate 2 and cathode plate 1 are chosen according to actual needs to adapt to different operational requirements.

[0032] The thickness of both the anode plate 2 and the cathode plate 1 is 0.5-30mm, and the width of the mounting cavity is 1-60mm. In this embodiment, both the anode plate 2 and the cathode plate 1 are fixed to the outer wall inside the mounting cavity.

[0033] The side wall thickness of the water distribution plate 4 is 5-30mm to prevent the water distribution plate from deforming under pressure.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electrolytic cell characterized in that: it comprises two water distribution plates, an ion membrane, an anode plate, and a cathode plate; an ion membrane is arranged between the two water distribution plates; the water distribution plate has a water distribution cavity and a mounting cavity inside, the water distribution cavity being above the mounting cavity; the upper part of the water distribution plate has a water inlet hole, and the side wall of the water distribution plate close to the ion membrane has a plurality of water distribution holes, the water inlet hole and the water distribution holes being in communication with the water distribution cavity; the anode plate and the cathode plate are respectively fixed in the mounting cavities of the two water distribution plates; the anode plate and the cathode plate each have a discharge passage between the plate and the bottom wall of the mounting cavity; the lower part of the water distribution plate has a water outlet hole, the water outlet hole being in communication with the discharge passage; the anode plate and the cathode plate each have a gap between the plate and the ion membrane.

2. The electrolytic cell according to claim 1, characterized in that: the plurality of water distribution holes are equidistantly spaced along the length direction of the water distribution plate.

3. The electrolytic cell according to claim 1, characterized in that: the front and rear side walls of the upper part of the water distribution plate each have the water inlet hole; the front and rear side walls of the lower part of the water distribution plate each have the water outlet hole.

4. The electrolytic cell according to claim 1, characterized in that: the ratio of the width to the height of the water distribution plate is 1-100:

1.

5. The electrolytic cell according to claim 1, characterized in that: the height of the discharge passage is 3-100 mm.

6. The electrolytic cell according to claim 1, characterized in that: the material of the water distribution plate is polyvinyl chloride, polypropylene, or polyethylene.

7. The electrolytic cell according to claim 1, characterized in that: the ion membrane is one of a cation membrane, an anion membrane, and a bipolar membrane.

8. The electrolytic cell according to claim 1, characterized in that: the anode plate and the cathode plate are each one of a stainless steel plate, a titanium plate, a titanium plate with a metal oxide coating, a platinum plate, and a copper plate.

9. The electrolytic cell according to claim 1, characterized in that: the thickness of the anode plate and the cathode plate is each 0.5-30 mm; the width of the mounting cavity is 1-60 mm.

10. The electrolytic cell according to claim 1, characterized in that: the thickness of the side wall of the water distribution plate is 5-30 mm.

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