CN216662568U - Electrode bar cleaning structure of sewage reactor - Google Patents

Abstract

The utility model discloses an electrode rod cleaning structure of a sewage reactor, which belongs to the field of sewage treatment equipment. The utility model comprises a fixed rod, a working rod, a cleaning knife, an auxiliary block and an impeller, which can be used in conjunction with a stirring paddle in the sewage reactor. Driven by the water flow, the scale on the electrode rod is removed in real time, which avoids the phenomenon that the sewage treatment effect of the sewage reactor is greatly reduced with the increase of time.

Description

Electrode rod cleaning structure of a sewage reactor

technical field

The utility model relates to the field of sewage treatment equipment, in particular to an electrode rod cleaning structure of a sewage reactor.

Background technique

Water is the source of life and the basic substance for human survival. Some parts of the earth are covered by water, but there are very few freshwater resources that human beings can really use.

Compared with the shortage of water resources, the problem of water pollution is more urgent. Therefore, it is very important for people to treat, purify and reuse sewage. If the problem of water pollution can be well solved, it will be able to alleviate the shortage of water resources to a great extent.

In sewage treatment, electrochemical flocculation method, also known as electrocondensation method, uses soluble electrode rods (usually iron electrodes or aluminum electrodes) as positive electrodes, which are dissolved in sewage under the action of electric current to generate hydroxides of metal ions. Precipitate, use its cohesiveness to gather colloidal substances and pollutants in water, so as to achieve the purpose of purifying water. Electrocondensation technology involves the reaction of water pollutants with strong electric fields and the oxidation and reduction reactions generated by electrochemistry. This process can remove heavy metal cations in water and kill microorganisms in water. This process can precipitate charged colloidal substances and eliminate them. Can significantly remove other ions, colloids, emulsions. It has been proved by practice that the electro-coagulation technology can effectively remove pollutants in water. The electro-coagulation technology can not only be used in various industrial wastewater treatment, but also in agriculture and rural areas where the quality of life is important. It can be used to remove pathogens in drinking water. , heavy metals and contaminants of wash water in food production.

During the electrocoagulation process, the surface of the electrode rod will be easily adsorbed by dirt as the electrocoagulation progresses, which will affect the electrolysis effect of the electrode rod for a long time. On the one hand, the operation is inconvenient, and on the other hand, the overall electrolysis efficiency is decreased, so a cleaning structure is urgently needed to clean the electrode rod.

Utility model content

The purpose of the utility model is to provide an electrode rod cleaning structure of a sewage reactor, which has the advantages of cleaning the water electrode rods.

In order to achieve the above purpose, the technical scheme adopted by the present utility model is: an electrode rod cleaning structure of a sewage reactor, comprising an outer cylinder and an inner bladder, the bottom wall of the outer cylinder is communicated with a sewage inlet pipe, and the upper port of the outer cylinder is provided with a sewage inlet pipe. An end cap is provided for closing the port, the inner bladder is arranged in the outer cylinder and is coaxially arranged with the outer cylinder, and the inner bladder is communicated with a scum discharge pipe, a sedimentation pipe and a water outlet pipe that pass through the outer cylinder. , the scum discharge pipe is connected with the upper position of the inner bladder, the water outlet pipe is connected with the middle position of the inner bladder, and the sediment discharge pipe is connected with the bottom of the inner bladder;

The outer side wall of the inner pot is evenly provided with a plurality of electrode rods along the circumferential direction, the end cap is provided with a plurality of electrode rods close to the side wall of the outer cylinder, the electrode rods close to the inner pot and the electrode rods and the electrode rods close to the outer cylinder side wall They are electrically coupled to each other in one-to-one correspondence;

The end cover is provided with a motor, and the rotating shaft of the motor is driven and connected with a rotating rod extending through the inner tank and extending into the outer cylinder, and a stirring paddle connected with the rotating rod is arranged directly below the inner tank;

The outer side wall of the inner pot and the lower end surface of the end cover are fixedly connected with a fixing tube for sleeves outside the electrode rod, the outer side of the fixing tube is fixedly sleeved with an upper end bearing, and the outer ring side of the upper end bearing is fixed A working rod is connected, and the side wall of the working rod is connected with a cleaning knife abutting against the electrode rod through an elastic piece,

An auxiliary block is connected to the lower end of the working rod, the auxiliary block is located just below the electrode rod, and an impeller is fixedly connected to the bottom surface of the auxiliary block through a connecting rod.

Preferably, there are at least two working rods, and the two working rods are evenly distributed on the outer ring side of the upper end bearing.

Preferably, the elastic member is configured as a spring.

Preferably, an end of the elastic member away from the working rod is provided with a clamping block, and a clamping slot for clamping the cleaning knife is opened on the clamping block.

Preferably, the cleaning blade includes an upper half scraper and a lower half scraper, the upper half scraper and the lower half scraper are respectively located on both sides of the electrode rod, and the bottom end of the upper half scraper and the top half of the lower half scraper are on the same plane.

Preferably, a partition plate for dividing the inside of the outer cylinder into upper and lower parts is connected between the outer side wall of the inner tank and the inner side wall of the outer cylinder, the auxiliary block is arranged in a cylindrical shape, and the partition plate is provided with There are a plurality of through holes for the auxiliary blocks to pass through, the side walls of the auxiliary blocks are connected with the partition plate through the lower end bearing, and the partition plate is provided with water inlet holes for the liquid to pass through.

Preferably, a guide plate for assisting the liquid to enter the upper side of the partition plate to form a swirling flow is arranged below the partition plate and located at the water inlet hole.

Compared with the prior art, the advantages of the present utility model are:

1. The setting of the cleaning knife can clean the outer surface of the electrode rod, reduce the generation of scale, and avoid the interference caused by the electrical coupling between the two electrode rods;

2. The selection of the working rod minimizes the shielding of the electrode rod by the working rod when cleaning the knife, and greatly reduces the mutual interference caused by the simultaneous operation of the electrode rod and the working rod;

3. The stirring paddle is used to drive the liquid to form a vortex, so that the impeller drives the working rod to work, so that the scale on the electrode rod can be cleaned in real time during the process of electric flocculation, and the working effect of the electrode rod in the whole water treatment process can be improved. It is basically the same from beginning to end, so that the sewage reactor can treat sewage for a long time;

4. The use of elastic parts to keep the cleaning blade in contact with the electrode rod can make the cleaning structure adaptable to electrode rods of different thicknesses. When the diameter of the electrode rod is reduced for a long time, the cleaning blade can still be used for the electrode rod. surface for cleaning.

Description of drawings

1 is a schematic diagram of the internal structure of the outer cylinder in this embodiment;

2 is a schematic diagram of the positional structure of the cleaning structure of the present embodiment;

3 is a schematic diagram of the cleaning structure connected to the end cap according to the present embodiment;

FIG. 4 is a schematic diagram of the cleaning structure connected to the inner tank according to the present embodiment;

Fig. 5 is the enlarged view of A part of Fig. 4;

FIG. 6 is a schematic diagram of the structure of the clamping block according to the present embodiment;

Figure 7 is a schematic diagram of the structure of the impeller of the present embodiment;

FIG. 8 is a schematic diagram of the structure of the partition plate of the present embodiment;

FIG. 9 is a schematic diagram of the structure of the guide plate of the present embodiment.

In the figure: 1. Outer cylinder; 11. Sewage inlet pipe; 12. End cover; 13. Motor; 14. Rod; 141. Stirring paddle; 2. Inner tank; ; 23, outlet pipe; 3, electrode rod; 4, fixed pipe; 41, upper bearing; 5, working rod; 6, elastic part; 61, snap block; 62, card slot; 7, cleaning knife; 71, upper Half scraper; 72, lower half scraper; 8, auxiliary block; 81, impeller; 82, lower bearing; 9, dividing plate; 91, water inlet; 92, deflector.

Detailed ways

The present utility model will be further described below.

Example:

As shown in Figures 1 and 2, an electrode rod cleaning structure of a sewage reactor includes an outer cylinder 1 and an inner bladder 2. The bottom wall of the outer cylinder 1 is connected with a sewage inlet pipe 11, and the upper port of the outer cylinder 1 is provided with a The end cover 12 of the closed port, the inner pot 2 is arranged in the outer barrel 1, and is arranged coaxially with the outer barrel 1, the outer side wall of the inner pot 2 is uniformly provided with a plurality of electrode rods 3 along the circumferential direction, and the end cover 12 is provided with a plurality of electrode rods 3. An electrode rod 3 close to the side wall of the outer cylinder 1 is electrically coupled to each other in a one-to-one correspondence with the electrode rod 3 close to the inner cylinder 2 and the electrode rod 3 close to the side wall of the outer cylinder 1 .

The side wall of the inner tank 2 and the position close to the top is provided with a water inlet for the liquid in the outer tank 1 that has completed the electro-flocculation to enter the inner tank for static stratification. The liquid after entering the inner tank 2 appears to be rapidly layered from top to bottom in order of scum layer, clear water layer and sedimentation layer, and the corresponding layered areas on the inner tank 2 are sequentially connected and provided with a scum discharge pipe passing through the outer cylinder 1. 21. The water outlet pipe 23 and the sedimentation pipe 22, the clean water is discharged from the water outlet pipe 23 to complete the entire water treatment process.

During the process of electro-flocculation, scale will form on the surface of the electrode rod 3. In order to reduce the influence on the effect of electro-flocculation, it is necessary to remove the surface of the rod of the motor 13 in real time.

As shown in FIGS. 3 and 4 , in this embodiment, a motor 13 is provided on the end cover 12 , and the rotating shaft of the motor 13 is connected with a rotating rod 14 that penetrates the inner pot 2 and extends into the outer barrel 1 , and is directly below the inner pot 2 . A stirring paddle 141 connected to the rotating rod 14 is provided. The outer side wall of the inner pot 2 and the lower end surface of the end cover 12 are both fixedly connected with a fixing tube 4 for sleeved outside the electrode rod 3, the outer side of the fixing tube 4 is fixedly sleeved with an upper end bearing 41, and the outer ring side of the upper end bearing 41 is fixed. A working rod 5 is fixedly connected, and the side wall of the working rod 5 is connected with a cleaning knife 7 abutting against the electrode rod 3 through an elastic member 6. In this embodiment, the elastic member 6 is specifically set as a spring, in other embodiments, it can also be Set up as a reed or other elastic structure. Referring to FIGS. 5 and 6 , in order to facilitate the installation of the cleaning blade 7 , a clamping block 61 is provided at the end of the elastic member 6 away from the working rod 5 .

As shown in Figures 3 and 4, the lower end of the working rod 5 is connected with an auxiliary block 8, the auxiliary block 8 is located directly below the electrode rod 3, and the bottom surface of the auxiliary block 8 is fixedly connected with an impeller 81 through a connecting rod, see Figure 7. When the motor 13 drives the stirring paddle 141 to work, the stirring paddle 141 drives the liquid in the outer cylinder 1 to form a vortex. At this time, the liquid forming the vortex will exert a thrust on the impeller 81 to make the impeller 81 rotate. The rotation of the impeller 81 drives the working rod 5 to move around the electrode rod 3 . At this time, the cleaning blade 7 scrapes off the scale on the surface of the electrode rod 3 to achieve the cleaning effect. In this embodiment, in order to stabilize the entire structure for cleaning, there are two working rods 5, the two working rods 5 are evenly distributed on the outer ring side of the upper end bearing 41, and the lower ends are fixedly connected with the auxiliary block 8, effectively This avoids the large deformation of the working rod 5 under the action of the swirling flow, and the phenomenon that the cleaning blade 7 and the electrode rod 3 cannot be abutted. In other embodiments, the number of working rods 5 may be greater than two.

As shown in FIGS. 3 and 4 , in this embodiment, in order to reduce the influence of the cleaning blade 7 on the electrical coupling between the two paired electrode rods 3 when cleaning the electrode rods 3 , the cleaning blade 7 includes an upper half scraper 71 and a lower half scraper 72 , the upper half scraper 71 and the lower half scraper 72 are respectively located on both sides of the electrode rod 3. During the cleaning process, the cleaning blade 7 does not completely cover the electrode rod 3, so as to reduce the impact on the electrocoagulation effect as much as possible. In other embodiments, the cleaning blade 7 can also be divided into multiple sections for use. In this embodiment, the bottom end of the upper half scraper 71 and the top end of the lower half scraper 72 are on the same plane, so that the areas cleaned by the upper half scraper 71 and the lower half scraper 72 do not overlap, and repeated cleaning of the electrode rod 3 is avoided.

As shown in FIGS. 2 and 8 , in order to reduce the influence of the swirling flow formed by the rotation of the stirring paddle 141 on the stability of the entire cleaning structure, the outer side wall of the inner tank 2 and the inner side wall of the outer cylinder 1 are connected with a device for connecting the outer cylinder 1 The interior is divided into an upper and lower part of the partition plate 9, the auxiliary block 8 is arranged in a cylindrical shape, the partition plate 9 is provided with a plurality of through holes for the auxiliary block 8 to pass through, the side wall of the auxiliary block 8 and the partition plate 9 The two are connected by the lower end bearing 82, and the partition plate 9 is provided with a water inlet hole 91 for the liquid to pass through. Under the fixed action of the partition plate 9, the positions of the upper end and the lower end of the working rod 5 in the outer cylinder 1 are fixed, and the overall tilt will not occur under the action of the water flow, and the phenomenon of being unable to cooperate with the electrode rod 3 will not occur, so that the The entire clean-up work can proceed normally.

As shown in Figures 8 and 9, in this implementation, since the plurality of electrode rods 3 are evenly distributed on the outer wall of the inner tank 2 and the inner wall of the outer cylinder 1, if the liquid to be processed rotates around the outer side of the inner tank 2, the liquid will pass through many times. Through the "gate" formed between the two paired electrode rods 3, the vortex fluid can fully contact the electrodes, promote the complete reaction, and greatly improve the effect of water treatment. A guide plate 92 is provided to assist the liquid to enter the upper side of the partition plate 9 to form a vortex shape, so that the liquid from the water inlet hole 91 to the upper side of the partition plate 9 can form a vortex shape, which improves the water treatment effect and also helps to improve the water treatment effect. The flocs generated during the electrified flocculation process rise, and finally enter the inner tank 2 for standing to prevent the flocs from depositing on the separator plate 9 .

The principles and implementations of the present utility model are described herein using specific examples, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present utility model; meanwhile, for those skilled in the art, according to The idea of the present utility model will have changes in the specific implementation and application scope, and changes and improvements to the present utility model will be possible without exceeding the concept and scope specified in the appended claims. However, the content of this specification should not be construed as a limitation to the present invention.

Claims (7)

1. An electrode rod cleaning structure of a sewage reactor, characterized in that it comprises an outer cylinder (1) and an inner bladder (2), and the bottom wall of the outer cylinder (1) is communicated with a sewage inlet pipe (11), and the outer The upper port of the barrel (1) is provided with an end cap (12) for closing the port, the inner pot (2) is arranged in the outer barrel (1), and is arranged coaxially with the outer barrel (1), and the inner pot (2) is arranged coaxially with the outer barrel (1). 2) A scum discharge pipe (21), a sediment discharge pipe (22) and a water discharge pipe (23) are connected and arranged on the upper part of the outer cylinder (1). The scum discharge pipe (21) and the inner bladder (2) The upper position of the water outlet pipe (23) is connected with the middle position of the inner bladder (2), and the sedimentation outlet pipe (22) is connected with the bottom of the inner bladder (2); The outer side wall of the inner pot (2) is evenly provided with a plurality of electrode rods (3) along the circumferential direction, and the end cover (12) is provided with a plurality of electrode rods (3) close to the side wall of the outer cylinder (1), The electrode rods (3) close to the inner tank (2) and the electrode rods (3) close to the side walls of the outer cylinder (1) are electrically coupled to each other in one-to-one correspondence; The end cover (12) is provided with a motor (13), and the rotating shaft of the motor (13) is driven and connected with a rotating rod (14) extending through the inner container (2) and extending into the outer cylinder (1). A stirring paddle (141) connected with the rotating rod (14) is arranged directly below the bladder (2); The outer side wall of the inner pot (2) and the lower end surface of the end cover (12) are fixedly connected with a fixing tube (4) for being sleeved outside the electrode rod (3), and the outer side of the fixing tube (4) is fixed The upper end bearing (41) is sleeved, the outer ring side of the upper end bearing (41) is fixedly connected with a working rod (5), and the side wall of the working rod (5) is connected with the electrode rod through the elastic piece (6). (3) The cleaning blade (7) in contact, An auxiliary block (8) is connected to the lower end of the working rod (5), the auxiliary block (8) is located directly below the electrode rod (3), and the bottom surface of the auxiliary block (8) is fixedly connected with a connecting rod. Impeller (81). 2 . The electrode rod cleaning structure of a sewage reactor according to claim 1 , wherein the working rods ( 5 ) are at least two, and the two working rods ( 5 ) are evenly distributed on the upper end. 3 . Outer ring side of bearing (41). 3 . The electrode rod cleaning structure of a sewage reactor according to claim 1 , wherein the elastic member ( 6 ) is configured as a spring. 4 . 4 . The electrode rod cleaning structure of a sewage reactor according to claim 1 , wherein the elastic member ( 6 ) is provided with a clamping block ( 61 ) at one end away from the working rod ( 5 ). 5 . The clamping block (61) is provided with a clamping groove (62) for clamping the cleaning blade (7). 5. The electrode rod cleaning structure of a sewage reactor according to claim 1, wherein the cleaning blade (7) comprises an upper half scraper (71) and a lower half scraper (72), the upper half scraper (72) The scraper (71) and the lower half scraper (72) are respectively located on both sides of the electrode rod (3), and the bottom end of the upper half scraper (71) and the top half of the lower half scraper (72) are on the same plane. 6. The electrode rod cleaning structure of a sewage reactor according to claim 1, characterized in that, between the outer side wall of the inner tank (2) and the inner side wall of the outer cylinder (1), there is a connection for cleaning the outer cylinder (1) The partition plate (9) is divided into upper and lower parts, the auxiliary block (8) is arranged in a cylindrical shape, and the partition plate (9) is provided with a plurality of auxiliary blocks (8) to pass through. The side wall of the auxiliary block (8) is connected with the partition plate (9) through the lower end bearing (82), and the partition plate (9) is provided with a water inlet hole ( 91). 7 . The electrode rod cleaning structure of a sewage reactor according to claim 6 , wherein an auxiliary liquid is provided to enter the separation plate below the partition plate ( 9 ) and located at the water inlet hole ( 91 ). 8 . The upper side of the plate (9) forms a guide plate (92) for the swirling flow.

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