阅读说明：本技术 一种回转电积设备 (Rotary electrodeposition equipment ) 是由 李新华 于 2020-07-07 设计创作，主要内容包括：本发明公开一种回转电积设备,其中,一驱动电机驱动一小齿轮轴带动一大齿轮转动。一回转支架的回转支架上、下板两侧的回转辊轴承槽内分别装有上、下板小弹簧和上、下回转辊轴承；大齿轮螺接回转支架下板。下端盖中心设有一具有阳极下定位孔的阳极下定位柱。上端盖的上端盖帽设有一具有阳极上定位孔的阳极上定位柱。回转辊,上、下两端对应紧配合在上回转辊轴承和下回转辊轴承上；阳极插设在阳极上定位孔和阳极下定位孔中。阴极与上、下端盖密封固定连接。阴极内衬,上端插设在阴极内衬压圈和阴极之间,下端插设在阴极与下端盖之间。该设备在提高生产效率、降低了系统投资成本和运行成本的同时,对电积液的循环再利用和处理也带来极大的好处。(The invention discloses a rotary electrodeposition device, wherein a driving motor drives a pinion shaft to drive a bull gear to rotate. The upper and lower plate small springs and the upper and lower slewing roller bearings are respectively arranged in slewing roller bearing grooves on two sides of the upper and lower plates of the slewing bracket; the bull gear spiro union slewing bearing hypoplastron. The center of the lower end cover is provided with an anode lower positioning column with an anode lower positioning hole. The upper end cap of the upper end cover is provided with an anode upper positioning column with an anode upper positioning hole. The upper end and the lower end of the revolving roller are correspondingly and tightly matched on the upper revolving roller bearing and the lower revolving roller bearing; the anode is inserted into the anode upper positioning hole and the anode lower positioning hole. The cathode is fixedly connected with the upper end cover and the lower end cover in a sealing way. And the upper end of the cathode lining is inserted between the cathode lining pressing ring and the cathode, and the lower end of the cathode lining is inserted between the cathode and the lower end cover. The equipment improves the production efficiency, reduces the system investment cost and the operation cost, and brings great benefits to the recycling and treatment of the electric effusion.)

1. The rotary electrodeposition equipment is characterized by comprising a driving part (100), a rotary support (200), a rotary roller (300), a cathode (400), an anode (500), a cathode lining (600), a large gear (700), an upper end cover (800) and a lower end cover (900); wherein the content of the first and second substances,

a driving part (100) including a driving motor (110), a coupling (120), a gland (140), a pinion shaft (170), and a driving part bracket (180); the driving motor (110) is fixed on the driving part support (180), and the driving part support (180) is fixedly connected with the lower end cover (900); the small gear shaft (170) penetrates through the sealing sleeve (140), the small gear shaft (170) penetrates through the lower end part of the sealing sleeve (140) and is connected with the driving motor (110) through the coupling (120), and the upper end part extending out of the sealing sleeve (140) is meshed with the large gear (700); the sealing sleeve (140) is fixedly arranged on the lower end cover (900);

a rotating bracket (200) disposed between the anode (500) and the cathode (400); comprises a rotary bracket upper plate (210), a rotary bracket lower plate (220) and a plurality of rotary supporting rods (230) to form a net structure; an upper plate small spring (240) and an upper rotary roller bearing (260) are arranged in upper rotary roller bearing grooves (211) on two sides of the upper plate (210) of the rotary bracket; a lower plate small spring (250) and a lower rotary roller bearing (270) are arranged in lower rotary roller bearing grooves (221) on two sides of the lower plate (220) of the rotary bracket; the large gear (700) is rotatably arranged on the anode lower positioning column (950) of the lower end cover (900); the bull gear (700) is in threaded connection with the lower plate (220) of the rotary bracket;

the center of the lower end cover (900) is provided with an anode lower positioning column (950), the anode lower positioning column (950) is provided with an anode lower positioning hole (960), and the upper end surface of the anode lower positioning column (950) is provided with an anode lower sealing groove (970); a lower end cover sealing groove (930) is annularly arranged on the upper end surface of the lower end cover (900); the side wall of the lower end cover (900) is provided with a liquid inlet hole (910);

the upper end cover (800) comprises an upper end cover body (810) and an upper end cover cap (820); the upper end cap (820) is screwed on the upper end cap body (810); an upper anode positioning column (822) is arranged in the middle of the upper end cap (820), and the upper anode positioning column (822) is provided with an upper anode positioning hole (823); an upper end cover upper sealing groove (811) is formed in the upper end face of the upper end cover body (810), an upper end cover lower sealing groove (812) is formed in the lower end face of the upper end cover body, and liquid outlet holes (814) are formed in the side wall of the upper end cover body;

the upper end and the lower end of the revolving roller (300) are correspondingly and tightly matched on the upper revolving roller bearing (260) and the lower revolving roller bearing (270);

an anode (500), wherein an anode upper column (510) and an anode lower column (520) are correspondingly and convexly arranged at the upper end and the lower end respectively; a cathode lining pressing ring (440) is arranged between the upper end surface of the anode (500) and the lower end surface of the upper plate (210) of the rotary support; the anode upper column (510) is inserted into the anode upper positioning hole (823); the anode lower column (520) is inserted into the anode lower positioning hole (960), and the lower end face of the anode (500) is abutted against the upper end face of the anode lower positioning column (950); the anode lower column (530) is fixedly and hermetically connected on the lower end cover (900) through an anode nut (540);

the cathode (400), the upper, lower both ends are equipped with the upper, lower cathode flange (410, 420) of the same specification correspondingly separately; the upper cathode flange (410) is fixedly connected with the upper end cover (800) in a sealing way; the lower cathode flange (420) is fixedly connected with the lower end cover (900) in a sealing way;

and the upper end of the cathode lining (600) is inserted between the cathode lining pressing ring (440) and the cathode (400), and the lower end of the cathode lining is inserted between the cathode (400) and the lower end cover (900).

2. The rotary electrodeposition equipment as claimed in claim 1, wherein the rotary support (200) is a rotary support (200) made of modified PPO, the rotary roll (300) is a rotary roll (300) made of modified PPO, the bull gear (700) is a bull gear (700) made of modified PPO, and the upper and lower end caps (800, 900) are upper and lower end caps (800, 900) made of modified PPO; and the anode (500) is a titanium-based insoluble anode; the cathode (400) is made of SUS316L stainless steel; the cathode lining (600) is made of stainless steel SUS316 material.

3. The rotary electrodeposition apparatus as claimed in claim 1 or 2, wherein the gland (140) is internally provided with a pinion shaft upper bearing (160) and a pinion lower bearing (130), and a drive seal (150) is provided between the pinion shaft upper bearing (160) and the pinion lower bearing (130); the pinion shaft (170) sequentially penetrates through the pinion shaft upper bearing (160) from top to bottom to drive the seal (150), and penetrates out of the lower end part of the seal sleeve (140) to be connected with the coupling (120) after the pinion shaft lower bearing (130); the pinion shaft (170) extends out of the upper end of the gland (140) to engage the bull gear (700).

4. The rotary electrowinning apparatus of claim 1 or claim 2 wherein the anode lower leg (530) extends beyond a section of the anode nut (540) to form an anode terminal (521); a cathode terminal (450) is provided on an outer sidewall of the cathode (400).

5. The rotary electrodeposition apparatus as claimed in claim 1 or 2, wherein the upper and lower cathode flanges (410, 420) have a diameter equal to the outer diameter of the upper end cap body (810).

Technical Field

The invention relates to the technical field of hydrometallurgy and production of metals from metal ion solutions by an electrochemical principle, in particular to structural improvement of rotary electrodeposition equipment.

Background

The metal is electrodeposited from solution, which belongs to the hydrometallurgy range, from ores to raw materials, from raw materials to metal materials, relates to very wide electrochemical phenomena and applications, and the theory and the application promote each other, thereby promoting the development of the metallurgy electrochemical technology. In the hydrometallurgical process, the metals are leached, purified and extracted to be refined, and from the current application technology, most metals in the periodic table can be prepared by an electrolysis method, but about two or thirty metals are produced by the current industrial large-scale electrolysis.

Electrolysis is a process of passing current through an electrolyte solution or a molten substance (also called electrolyte) to cause redox reactions at a cathode and an anode; electrolysis is widely used in the metallurgical industry, such as the extraction of metals from ores or compounds (electrowinning) or the purification of metals (electrorefining), and the deposition of metals from solution (electroplating). Electrolysis is a very powerful means of promoting redox reactions, many of which are difficult to carry out, and can be achieved by electrolysis. For example: molten fluoride can be oxidized to elemental fluorine at the anode and molten lithium salt reduced to metallic lithium at the cathode. The electrolysis industry plays an important role in national economy, and smelting of many non-ferrous metals (such as sodium, potassium, magnesium, aluminum, and the like) and rare metals (such as zirconium, hafnium, and the like) and refining of metals (such as copper, zinc, lead, and the like), preparation of basic chemical products (such as hydrogen, oxygen, caustic soda, potassium chlorate, hydrogen peroxide, ethanedinitrile, and the like), electroplating, electropolishing, anodic oxidation, and the like are all achieved by electrolysis.

At present, in the industry at home and abroad, in order to solve the problems of environmental pollution, large energy consumption and the like caused in the metallurgical electrolysis process, new electrolytic electrodeposition technology and new electrolytic electrodeposition equipment are researched and developed.

Electrodeposition is a process of electrochemical deposition of metals or alloys from aqueous solutions, non-aqueous solutions or molten salts of their compounds, and is the basis of metal electrowinning, electrorefining, electroplating, electroforming processes. These processes are carried out under certain electrolyte and operating conditions.

The reductive precipitation of metal is closely related to the cathode polarization. Polarization is classified into concentration polarization, electrochemical polarization, and the like according to the difference of causes generated in the electrodeposition process. Electrodeposition processes under control of different polarization types will have different characteristics; concentration polarization: in the electrodeposition process, the deposition of particles participating in the reaction on the surface of the electrode, or the accumulation of electrode reaction products near the surface of the electrode, will cause the concentration of the reaction particles near the surface of the electrode to change, so that the concentration difference between the vicinity of the surface of the electrode and the bulk of the solution occurs. The change in the electrode potential due to the concentration difference is called concentration polarization. The concentration polarization has the following characteristics: the concentration polarization increases along with the increase of the current density of the electrode, and when a certain potential is reached, a limiting current which does not change along with the potential of the electrode appears; the concentration polarization can be greatly reduced by stirring the solution, and the limiting current density is improved. In the electrodeposition process, when the electrode process is controlled by concentration polarization, a metal deposition layer obtained on the surface of the electrode is often rough; electrochemical polarization: when metal ions are deposited, the ions in the liquid phase must overcome or cross a certain energy barrier to be deposited on the cathode, and the resulting change in the electrode potential is called electrochemical polarization. The main factors affecting electrochemical polarization are: electrode materials, different electrode materials having different catalytic activities for electrochemical reactions; in the prior art, the electrodeposition mostly adopts an electrolysis process, and the concentration of metal ions in a leaching solution is required to be high, the acidity is required to be large, and the method is only suitable for refining; and the direct electrodeposition equipment is adopted, so that metal can be directly produced from the solution containing metal ions, and the method has high purity, is energy-saving and environment-friendly.

The existing cyclone electrodeposition equipment is an electrodeposition equipment which aims to overcome concentration polarization and electrochemical polarization in the electrodeposition process and obtain high-purity cathode deposited metal.

The existing rotational flow electrodeposition equipment cannot really rotate the flow, the defects that burrs are easy to grow in the electrodeposition process due to large flow and the like cannot be avoided, and the rotational flow is possible only with large flow, so that the operation cost is high and the energy consumption is large.

As shown in FIG. 1, it is difficult for the conventional spiral electrodeposition apparatus to obtain a liquid flow which is ideally spirally raised, and the liquid flow which is just entering the apparatus rotates around the peripheral wall of the cathode 2, but the liquid flow does not spirally raise as expected but flows out of the apparatus by a short time according to the rising of the liquid flow and the difference between the liquid levels of the upper and lower portions in the tube. The second step is as follows: according to the principle of hydromechanics, in a pipeline filled with liquid, the liquid velocity of the liquid is high in the middle, the liquid velocity of the liquid is lower close to the pipe wall, the fluid flows in the pipeline, the part of the fluid layer with the influence on the flow is called a fluid flowing boundary layer due to the existence of a solid wall surface, when the actual fluid flows along the wall surface, the velocity of a layer of extremely thin fluid tightly attached to the wall surface is zero, the flow velocity is rapidly increased from zero to the fluid main body along the direction vertical to the flowing direction, and the velocity is gradually reduced to be basically unchanged after the flow velocity is increased. The concentration polarization generated in the electrodeposition process is a region close to the surface of the cathode 2 which is extremely thin, so that the elimination of some inherent defects in the electrodeposition process by increasing the flow rate has a limited effect. Of course, the higher the flow velocity in the pipe is, the more favorable the electrodeposition is, but when the flow velocity is too large, the larger the circulation flow is required, the larger the motor power of the circulation pump is, and the larger the comprehensive power consumption in the electrodeposition is.

The anode 1 of the rotational flow electrodeposition is an insoluble anode, the main body is titanium-based surface sintered iridium-tantalum alloy which is an oxidation resistant layer, the anode 1 is protected, and the price is high. The defects of long burrs of the cathode and the like cannot be eliminated by the cyclone electrodeposition, and once the long burrs appear, the long burrs are much faster than those of other places until the long burrs are contacted with the anode to cause short circuit of the cathode and the anode, so that the iridium-tantalum alloy layer on the anode is burnt out, and the anode 1 is scrapped soon. When the burr of the cathode 2 grows to be in contact with the anode 1, the current is larger, the part close to the anode is blown, and then the burr continues to grow until the anode is blown again next time. The cycle is repeated, and finally, the cyclone electrodeposition column is poor in deposition and influences the current efficiency and stability of the whole system.

The cyclone electrodeposition needs a large circulation flow, so the electrodeposition column cannot be made large, the inner diameter of the cathode column is about 200 mm, and the production efficiency is low.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a rotary electrodeposition device. The equipment can improve the current efficiency and the purity of the deposited metal is high; the recycling and treatment of the electric liquid loading can bring great benefits while improving the production efficiency and reducing the investment cost and the running cost of the system.

In order to achieve the purpose, the invention provides the following technical scheme:

the rotary electrodeposition equipment comprises a driving part, a rotary support, a rotary roller, a cathode, an anode, a cathode lining, a large gear, an upper end cover and a lower end cover; wherein the content of the first and second substances,

the driving part comprises a driving motor, a coupling, a sealing sleeve, a pinion shaft and a driving part bracket; the driving motor is fixed on a driving part bracket which is fixedly connected with a lower end cover; the small gear shaft penetrates through the sealing sleeve, the lower end part of the small gear shaft, which penetrates out of the sealing sleeve, is connected with a driving motor through a coupling, and the upper end part of the small gear shaft, which extends out of the sealing sleeve, is meshed with the large gear; the sealing sleeve is fixedly arranged on the lower end cover;

a rotating bracket arranged between the anode and the cathode; comprises a rotary bracket upper plate, a rotary bracket lower plate and a plurality of rotary supporting rods to form a net structure; an upper plate small spring and an upper rotary roller bearing are arranged in upper rotary roller bearing grooves on two sides of an upper plate of the rotary support; lower plate small spring lower slewing roller bearings are arranged in lower slewing roller bearing grooves on two sides of the lower plate of the slewing bracket;

the large gear is rotatably arranged on the anode lower positioning column of the lower end cover; the bull gear is in threaded connection with the lower plate of the rotary support;

the center of the lower end cover is provided with an anode lower positioning column, the anode lower positioning column is provided with an anode lower positioning hole, and the upper end surface of the anode lower positioning column is provided with an anode lower sealing groove; a lower end cover sealing groove is annularly arranged on the upper end surface of the lower end cover; the side wall of the lower end cover is provided with a liquid inlet hole;

the upper end cover comprises an upper end cover body and an upper end cover cap; the upper end cover cap is screwed on the upper end cover body; an upper anode positioning column is arranged in the middle of the upper end cap and provided with an upper anode positioning hole; the upper end surface of the upper end cover body is provided with an upper end cover upper sealing groove, the lower end surface of the upper end cover body is provided with an upper end cover lower sealing groove, and the side wall of the upper end cover body is provided with a liquid outlet hole;

the upper end and the lower end of the revolving roller are correspondingly and tightly matched on the upper revolving roller bearing and the lower revolving roller bearing;

the upper end and the lower end of the anode are respectively and correspondingly convexly provided with an anode upper column and an anode lower column; a cathode lining pressing ring is arranged between the upper end face of the anode and the lower end face of the upper plate of the rotary support; the anode upper column is inserted into the anode upper positioning hole; the anode lower column is inserted into the anode lower positioning hole, and the lower end face of the anode is abutted against the upper end face of the anode lower positioning column; the anode lower column is fixedly and hermetically connected to the lower end cover through an anode nut;

the upper end and the lower end of the cathode are respectively and correspondingly provided with an upper cathode flange and a lower cathode flange with the same specification; the upper cathode flange is fixedly connected with the upper end cover in a sealing way; the lower cathode flange is fixedly connected with the lower end cover in a sealing way;

and the upper end of the cathode lining is inserted between the cathode lining pressing ring and the cathode, and the lower end of the cathode lining is inserted between the cathode and the lower end cover.

According to the rotary electrodeposition equipment, the rotary support is a rotary support made of modified PPO, the rotary roller is a rotary roller made of modified PPO, the gearwheel is a gearwheel made of modified PPO, and the upper end cover and the lower end cover are made of modified PPO; and the anode is a titanium-based insoluble anode; the cathode was made of SUS316L stainless steel; the cathode lining is made of stainless steel SUS316 material.

According to the rotary electrodeposition equipment, a pinion shaft upper bearing and a pinion lower bearing are arranged in the sealing sleeve, and a driving sealing piece is arranged between the pinion shaft upper bearing and the pinion lower bearing; the pinion shaft sequentially penetrates through the upper bearing of the pinion shaft from top to bottom to drive the seal, and penetrates out of the lower end part of the seal sleeve to be connected with the coupling after penetrating out of the lower bearing of the pinion shaft; the pinion shaft extends out of the upper end of the gland to engage the bull gear.

The rotary electrodeposition equipment comprises an anode lower column, an anode nut and an anode lower column, wherein the anode lower column extends out of a section of the anode nut to form an anode binding post; the cathode wiring terminal is arranged on the outer side wall of the cathode.

In the above rotary electrodeposition apparatus, the diameters of the upper and lower cathode flanges are equal to the outer diameter of the upper cap body.

Compared with the prior art, the rotary electrodeposition equipment has the advantages that the rotary support is designed between the cathode and the anode, the rotary roller is arranged on the rotary support, when the rotary support rotates around the axis of the central shaft of the anode, the rotary roller is driven to rotate around the axis of the central shaft of the anode, the rotary roller is properly and fully attached to the surface of the cathode lining under the action of the upper and lower plate small springs and uniformly rolls on the surface of the cathode lining, the rotary roller is fully contacted with the surface of the cathode lining, and the concentration polarization and the electrochemistry on the surface of the cathode are mechanically damaged; under the continuous rolling of the rotary roller, the surface of the cathode cannot be subjected to long burr and long flash. Even if the roller is long, the roller can be mechanically damaged and leveled under the continuous rolling of the rotary roller.

As mentioned above, the rotary electrodeposition equipment of the invention has the following beneficial effects during electrodeposition:

firstly, during electrodeposition, concentration polarization and chemical polarization on the surface of the cathode are effectively destroyed, and the current efficiency is improved.

Secondly, the defects of long burrs and long burrs of cathode deposited metal, rough inner surface of the deposited metal and the like are thoroughly overcome.

Thirdly, the problem of burning the anode caused by long burrs and long burrs of cathode deposited metal is thoroughly solved, and the titanium-based layered anode is very expensive.

Fourthly, the deposited metal has high purity, good toughness, smooth inner and outer surfaces and beautiful appearance.

Fifthly, because large flow is not needed to destroy concentration polarization and chemical polarization on the surface of the cathode, the circulating flow of the system is very small, which is 1/80 or less of the flow of the rotational flow electrodeposition system, even a circulating pump is not needed, the circulating flow can be provided by the gravity flow of stock solution of a high-level tank, the energy consumption of the circulating pump is greatly saved, and the investment cost is also reduced.

Sixthly, because the electrodeposition system does not need a large flow, and the circulating flow of the electrodeposition liquid is small during electrodeposition, the diameter and the length of a single electrocolumn can be very large, so that the yield of the single electrowinning column is increased by several times, and the investment cost and the operation cost of the system are reduced.

Seventhly, the additive is used or not added to improve the inner surface smoothness of the electrodeposited metal and prevent long thorns, slag inclusion and the like, so that the cost is saved, the pollution of the electrodeposited liquid caused by the addition of the additive is avoided, and great benefits are brought to the recycling and treatment of the electrodeposited liquid.

Eighthly, the system is very stable in operation, the operation cost is greatly reduced, and the production efficiency is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view showing the structure of a conventional cyclone electrodeposition apparatus (in the drawing, a indicates a metal ion running direction and b indicates a liquid stream rotating flow direction.)

FIG. 2 is a schematic perspective view of a rotary electrodeposition apparatus of the present invention;

FIG. 3 is a schematic view of the structure of part A of FIG. 2;

FIG. 4 is a schematic cross-sectional view of a rotary electrodeposition apparatus of the present invention;

FIG. 5 is a schematic view of the structure of part B of FIG. 4;

FIG. 6 is a schematic view of the structure of the portion C of FIG. 4;

FIG. 7 is a schematic perspective view of the driving portion of the present invention;

FIG. 8 is a schematic sectional view of the driving part of the present invention;

FIG. 9 is a front view of the swivel stand of the present invention;

FIG. 10 is a schematic perspective view of a pivoting support of the present invention;

FIG. 11 is a schematic cross-sectional view of a bull gear according to the present invention;

FIG. 12 is a cross-sectional structural schematic view of the lower end cap of the present invention;

fig. 13 is a schematic top view of the bottom end cap of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, the terms "first", "second" or "third", etc. are used for distinguishing between different items and not for describing a particular sequence.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, all directional or positional relationships indicated by the terms "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are based on the directional or positional relationships indicated in the drawings and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so indicated must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the terms "fixedly connected" or "fixedly connected" should be interpreted broadly, that is, any connection between the two that does not have a relative rotational or translational relationship, that is, non-detachably fixed, integrally connected, and fixedly connected by other devices or elements.

In the claims, the specification and the drawings of the present invention, the terms "including", "having" and their variants, if used, are intended to be inclusive and not limiting.

Referring to fig. 2 to 6, the rotary electrodeposition apparatus of the present invention is illustrated, which includes a driving part 100, a rotary support 200, a rotary roll 300, a cathode 400, an anode 500, a cathode liner 600, a large gear 700, an upper end cap 800 and a lower end cap 900.

The driving part 100 of the present invention includes a driving motor 110, a coupling 120, a pinion shaft lower bearing 130, a gland 140, a driving seal 150, a pinion shaft upper bearing 160, a pinion shaft 170, and a driving part bracket 180. The driving motor 110 is fixed on the driving part bracket 180 and drives the pinion shaft 170 through the coupling 120; the pinion shaft 170 is inserted into the gland 140, and the pinion shaft lower bearing 130, the gland 140, and the pinion shaft upper bearing 160 are installed in the gland 140.

As shown in fig. 7 and 8, the driving motor 110 is fixedly connected to the driving portion bracket 180 by screws, and the pinion shaft 170 is connected to the driving motor 110 by the coupling 120 so as to drive the pinion shaft 170 through the coupling 120.

The sealing sleeve 140 is cylindrical, a through hole is formed in the middle of the sealing sleeve, the upper sealing sleeve 141 and the lower sealing sleeve 142 are screwed into a whole, and the upper sealing sleeve 141 is provided with external screw threads to be screwed into a pinion mounting screw hole 920 of the lower end cover 900, so that the sealing sleeve 140 is fixedly mounted on the lower end cover 900. The sealing sleeve 140 is internally provided with a pinion shaft upper bearing 160 and a pinion lower bearing 130, and a driving seal 150 is provided between the pinion shaft upper bearing 160 and the pinion lower bearing 130.

The pinion shaft 170 sequentially passes through the pinion shaft upper bearing 16 from top to bottom to drive the seal 150, and passes through the lower end part of the seal sleeve 140 to be connected with the coupling 120 after passing through the pinion shaft lower bearing 130; the pinion shaft 170 extends out of the upper end of the sealing sleeve 140 to form a pinion shaft tooth portion 171 to engage with a bull gear tooth 710 of the bull gear 700, so that the pinion shaft 170 and the bull gear 700 are in meshing transmission.

The driving part bracket 180 is fixedly connected to the lower end cap 900 by screws, so that the driving part 180 and the lower end cap 900 are integrally connected.

Referring to fig. 9 and 10, the pivoting support 200 of the present invention is made of modified PPO and is disposed between an anode 500 and a cathode 400. The revolving support 200 includes a revolving support upper plate 210, a revolving support lower plate 220, and a plurality of revolving support rods 230, wherein the plurality of revolving support rods 230 are uniformly distributed between the revolving support upper plate 210 and the revolving support lower plate 220 to form a net structure. Two symmetrical upper revolving roller bearing grooves 211 are arranged on two sides of the upper plate 210 of the revolving support, an upper plate small spring 240 and an upper revolving roller bearing 260 are arranged in each upper revolving roller bearing groove 211, and the upper plate small spring 240 is propped between the groove wall of the upper revolving roller bearing groove 211 and the upper revolving roller bearing 260; a rotating bracket upper plate hole 212 is formed in the center of the rotating bracket upper plate 210, and a rotating bracket bearing seat 213 is formed in the rotating bracket upper plate hole 212. Two symmetrical lower slewing roller bearing grooves 221 are formed in two sides of the lower plate 220 of the slewing bracket, a lower plate small spring 250 and a lower slewing roller bearing 270 are arranged in each lower slewing roller bearing groove 221, and the lower plate small spring 250 abuts between the groove wall of the lower slewing roller bearing groove 221 and the lower slewing roller bearing 270; and a bracket mounting through hole 222 is formed in the center of the lower plate 220 of the pivoting bracket, and an internal thread 223 is formed at the lower end of the bracket pivoting through hole 222 to be matched with a bull gear external thread part 720 of the bull gear 700 and to be screwed on the bull gear 700, thereby fixedly connecting the pivoting bracket 200 and the bull gear 700.

As shown in fig. 11, the bull gear 700 of the present invention is made of modified PPO and is rotatably disposed on the anode lower positioning post 950 of the lower end cap 900. Specifically, the bull gear 700 is rotatably disposed on the lower positioning post 950 of the anode through the bull gear inner bearing 750 of the upper and lower bull gear bearing seats 730 and 740 provided in the central through hole. And is screwed in the bracket mounting through hole 222 of the swing bracket 200 through a bull gear external thread portion 720 provided on the outer edge of the upper end portion of the bull gear 700. The gear 700 has gear teeth 710 formed on the outer periphery of the lower end thereof to engage with the pinion shaft teeth 171 of the pinion shaft 170.

Referring to fig. 12 and 13, the lower end cap 900 of the present invention is made of modified PPO. The lower cap 900 has a liquid inlet hole 910 formed in a sidewall thereof; a pinion mounting screw hole 920 is formed on the bottom end surface; a lower end cap seal groove 930 is annularly arranged on the upper end surface; and a lower end cap retaining protrusion 940 is convexly provided on the upper end surface for retaining the cathode lining 600; the center of the lower end cover 900 is provided with an anode lower positioning column 950, the central axis of the anode lower positioning column 950 is coaxial with the central axis of the anode 500, the gearwheel 700 is rotatably arranged on the anode lower positioning column 950 through bearings arranged on the upper and lower gearwheel bearing blocks 730 and 740, and the rotary support lower plate 220 screwed and fixed with the gearwheel drives the rotary support 200 to rotate and be arranged on the anode lower positioning column 950. The anode lower positioning post 950 has an anode lower positioning hole 960, and a central axis of the anode lower positioning hole 960 is coaxial with a central axis of the anode 500; an anode lower sealing groove 970 is disposed on the upper end surface of the anode lower positioning column 950. A plurality of lower end cap screw holes 980 are further formed in the upper end surface of the lower end cap 900, so that the lower end cap 900 and the lower cathode flange 420 are fixedly connected in a sealing manner by a plurality of correspondingly formed lower end cap bolts 990.

Referring to fig. 2 and 6, the upper end cap 800 of the present invention is disposed above the lower end cap 900, and includes an upper end cap body 810 and an upper end cap 820, wherein the upper end cap body 810 and the upper end cap 820 are both made of modified PPO, and the upper end cap 820 is screwed on the upper end cap body 810.

Specifically, the upper end cap 820 is provided with a multi-head internal thread 821 on the inner side wall, an anode upper positioning column 822 is arranged in the middle, the anode upper positioning column 822 is provided with an anode upper positioning hole 823, and the central axis of the anode upper positioning hole 823 is coaxial with the central axis of the anode 500.

The upper end cover body 810 is provided with a liquid outlet hole 814 on the side wall, an upper end cover upper sealing groove 811 on the upper end surface, an upper end cover lower sealing groove 812 on the lower end surface, and sealing rings are arranged in the upper end cover upper sealing groove 811 and the upper end cover lower sealing groove 812 for sealing; the top end of the upper cap body 810 is provided with a multi-thread male screw 813 for engaging with the multi-thread female screw 821 of the upper cap 820 to screw the upper cap body 810 and the upper cap 820 together. The upper cap body 810 and the upper cap 820 screwed together form a sealing connection by a seal ring in the upper seal groove 811. The upper end cap body 810 is further provided with a plurality of upper end cap screw holes 815 at a lower end surface, wherein embedded nuts are provided, so that the upper end cap body 810 and the upper cathode flange 410 are fixedly connected in a sealing manner by a plurality of upper end cap bolts 830 corresponding to the embedded nuts.

Referring to fig. 4 to 6, the revolving roll 300 of the present invention is made of modified PPO. The upper and lower ends of the revolving roller 300 are correspondingly provided with an upper revolving roller positioning rod 310 and a lower revolving roller positioning rod 320, and the upper revolving roller positioning rod 310 and the lower revolving roller positioning rod 320 are correspondingly and tightly matched on the upper revolving roller bearing 260 and the lower revolving roller bearing 270. The thrust generated by the upper plate small spring 240 and the lower plate small spring 250 to the upper revolving roller bearing 260 and the lower revolving roller bearing 270, respectively, makes the revolving roller 300 fully and completely fit with the metal surface deposited on the cathode lining 600.

The anode 500 of the present invention is a titanium-based insoluble anode. The anode 500 has an upper anode column 510 and a lower anode column 520 protruding upward and downward along the central axis of the anode 500. The anode upper column 510 and the anode lower column 520 are respectively inserted into the anode upper positioning hole 823 and the anode lower positioning hole 960, so that the anode 500 is fixed between the upper end cap 800 and the lower end cap 900.

Specifically, the anode upper column 510 penetrates through a cathode lining clamping ring 440 and a rotary support upper plate hole 212 formed in the rotary support upper plate 210 from bottom to top, and is inserted into the anode upper positioning hole 823, and the rotary support upper plate 210 drives the rotary support 200 to rotate on the anode upper column 510 through the rotary support upper bearing 214 on the rotary support bearing seat 213.

The cathode lining pressing ring 440 arranged between the upper end face of the anode 500 and the lower end face of the upper plate 210 of the slewing bearing is tightly fitted in the bottom end part of the upper end cover body 810, extends into the cathode 400 and is tightly fitted with the cathode lining 600.

The anode lower column 520 is inserted into the anode lower positioning hole 960 of the lower end cover 900, and the lower end face of the anode 500 is abutted against the upper end face of the anode lower positioning column 950, and the anode 500 is sealed with the outside by the sealing ring in the anode lower sealing groove 970 arranged on the anode lower positioning column 950. The part of the anode lower column 530 extending out of the anode lower positioning hole 960 is provided with an external thread, and the anode upper column 520 is fixedly and hermetically connected on the lower end cover 900 through an anode nut 540; and a section of the anode lower post 530 extending out of the anode nut 540 forms an anode post 521.

The cathode 400 of the present invention was made of SUS316L stainless steel. The upper and lower ends of the cathode 400 are respectively provided with upper and lower cathode flanges 410, 420 of the same specification. In this embodiment, the upper cathode flange 410 is provided with eight upper mounting screw holes corresponding to the upper end cover screw holes 815 provided on the upper end cover body 810, and the upper cathode flange 410 and the upper end cover 800 are screwed and fixed by eight corresponding upper end cover bolts 830; a sealing ring is arranged in an upper end cover upper sealing groove 811 of the upper end cover body 810, and plays a role in sealing, fixing and connecting the upper cathode flange 410 and the upper end cover 800 which are fixedly screwed. Eight lower end cover screw holes 980 are formed in the lower cathode flange 42 corresponding to the lower end cover 900, and eight lower end cover bolts 990 correspondingly arranged are used for fixing the lower cathode flange 420 and the lower end cover 900 in a threaded manner; a sealing ring is arranged in a lower end cover sealing groove 930 of the lower end cover 900, and plays a role in sealing, fixing and connecting the lower cathode flange 420 and the lower end cover 900 which are fixedly connected in a screwed mode. The upper and lower cathode flanges 410, 420 of the present invention have a diameter equal to the outer diameter of the upper end cap body 810. A cathode post 450 is provided on the outer sidewall of the cathode 400.

The cathode lining 600 of the present invention is made of stainless steel SUS316, the upper end of the cathode lining 600 is inserted between the cathode lining pressing ring 440 and the cathode 400, the lower end of the cathode lining 600 is inserted between the cathode 400 and the lower end cap 900, and specifically, the lower end of the cathode lining 600 is inserted between the inner sidewall of the cathode 400 and the lower end cap baffle 940 of the lower end cap 900. Under the natural tension of the cathode lining pressing ring 440 and the cathode lining 600, the cathode lining 600 is tightly attached to the inner side wall of the cathode 400. The length of the cathode liner 600 in this embodiment is equal to the distance between the upper and lower cathode flanges 410, 420.

When the rotary electrodeposition equipment is assembled, the anode lower column 520 of the anode 500 is inserted into the hole of the anode lower positioning hole 960 on the lower end cover 900 and is fixedly and hermetically connected with the lower end cover 900 by the anode nut 530, and the sealing ring is arranged in the anode lower sealing groove 970 to play a role in sealing the anode 500 with the outside. The anode upper column 510 of the anode 500 is inserted into the anode upper positioning hole 823 of the upper end cap 820 to ensure that the anode 500 and the cathode 400 are concentric, the gearwheel 700 is mounted on the anode lower positioning column 950 through the gearwheel inner bearing 750 of the central through hole, and the gearwheel 700 can only rotate around the anode lower positioning column 950.

The rotary bracket 200 is screwed with the bull gear external thread portion 720 of the bull gear 700 through the internal thread 223 of the bracket rotary through hole 222. The anode 500 is connected to the anode upper column 510 by a slewing bearing 214 mounted on the slewing bracket 200, and the slewing bracket 200 is concentric with the anode 500 and rotatable about the central axis of the anode 500.

The anode of the direct current power supply is connected with the anode binding post 521, the cathode is connected with the cathode binding post 450, the electrodeposition liquid passes through the circulating tank, the circulating pump or the high-level box can pass through the liquid inlet hole 910 at a certain flow rate, the liquid containing metal ions flows through the annular cavities of the anode 500 and the cathode lining 600, is stirred by the rotary bracket 200 rotating around the central axis of the anode 500, then flows out of the rotary electrodeposition equipment through the liquid outlet hole 814 of the upper end cover 800, returns to the circulating tank, forms backflow, and enables the metal ions to be continuously reduced and deposited on the cathode lining 600. When the driving motor 110 is powered on to operate, the pinion shaft 170 is driven to rotate through the coupling 120, the pinion toothed part 171 on the pinion shaft 170 drives the bull gear teeth 710 of the bull gear 700, so as to drive the bull gear 700 to rotate, the bull gear 700 and the rotary support 200 are fixedly screwed through the bull gear external thread part 720 and the internal thread 223 of the support rotary through hole 222, so that the rotary support 200 rotates around the central axis of the anode 500, the rotary roller 300 rotates around the central axis of the anode 500 along with the rotary support 200, the rotary roller 300 is fully and completely attached to the surface of the cathode lining 600 through the thrust of the upper and lower plate small springs 240 and 250 on the upper and lower rotary roller bearings 260 and 270, under the action of the friction force of the cathode lining 600, the rotary roller 300 rotates around the central axis of the rotary roller, so that the rotary roller 300 rolls along with the surface of the cathode lining 600, thereby mechanically destroying the concentration polarization and electrochemical polarization of the metal surface concentrated on the surface of the cathode lining 600, allowing metal to easily concentrate on the surface of the cathode liner 600. Secondly, because of the rotation of the rotary bracket 200, the electrodeposition stock solution is well stirred.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.