Electroplating wastewater micro-electrolysis and electric flocculation integrated device

Abstract

The utility model relates to the technical field of environmental protection, in particular to an electroplating wastewater micro-electrolysis and electric flocculation integrated device which comprises a first foot support, a water storage barrel is fixedly connected to the upper surface of the first foot support, and a micro-electrolysis rotating mechanism is fixedly arranged on the surface of one side of the water storage barrel. When sewage needs to be cleaned, the sewage is subjected to micro-electrolysis reaction by starting the motor, the aerator switch and the electric flocculation switch, flocculate substances generated after electrolysis are scraped into the scum discharge port by the scum scraper to be discharged, and finally the flocculate substances are discharged after being filtered by the multiple layers of filter screens. According to the device, a plurality of treatment steps such as micro-electrolysis, electric flocculation and filtration are integrated, comprehensive and efficient treatment can be carried out on the electroplating wastewater, the micro-electrolysis reaction decomposes organic matters through filler, heavy metal ions are converted, pollutants are further removed through electric flocculation to form flocculated substances, and finally, the flocculated substances are filtered through a plurality of layers of filter screens, so that the effluent quality is ensured to reach the standard.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, in particular to an integrated device for micro-electrolysis and electrocoagulation of electroplating wastewater. Background Art

[0002] The technical field of environmental protection plays a crucial role in today's society. With the rapid development of industry, the problem of water pollution is becoming increasingly serious. In particular, the wastewater generated by the electroplating industry contains a large amount of harmful substances such as heavy metal ions and organic matters. If not properly treated, it will cause great damage to the environment. Therefore, there is a particular need for an integrated device for micro-electrolysis and electrocoagulation of electroplating wastewater.

[0003] During the use of existing sewage treatment devices, due to the usually adopted fixed fillers or simple stirring methods, the contact area between the fillers and the sewage is relatively small, which results in a slow reaction speed and low treatment efficiency. It is difficult to effectively remove various pollutants in electroplating wastewater in a short time. Moreover, traditional sewage treatment systems often consist of multiple independent devices and units, such as regulating ponds, sedimentation ponds, bioreactors, etc., which cover a large area and have high installation and maintenance costs. Content of the Utility Model

[0004] The purpose of the utility model is to provide an integrated device for micro-electrolysis and electrocoagulation of electroplating wastewater, so as to solve the problems in the above-mentioned background art that traditional sewage treatment devices usually adopt fixed fillers or simple stirring methods, the contact area between the fillers and the sewage is relatively small, which results in a slow reaction speed and low treatment efficiency, it is difficult to effectively remove various pollutants in electroplating wastewater in a short time, and traditional sewage treatment systems often consist of multiple independent devices and units, such as regulating ponds, sedimentation ponds, bioreactors, etc., which cover a large area and have high installation and maintenance costs.

[0005] To achieve the above object, the present utility model provides the following technical solutions: An integrated device for micro-electrolysis and electrocoagulation of electroplating wastewater, including a first foot bracket, on the upper surface of which a water storage bucket is fixedly connected. On one side surface of the water storage bucket, an aerator switch is fixedly connected. Above the aerator switch, an electrocoagulation switch is fixedly connected. On one side surface of the water storage bucket, an electrocoagulation coil is fixedly connected. On the upper surface of the water storage bucket, a bucket cover is fixedly connected. On one side surface of the water storage bucket, a scum discharge port is fixedly connected. On one side surface of the water storage bucket, a sewage inlet is fixedly connected. On the inner surface of the water storage bucket, an iron plate electrode is fixedly connected. On the inner surface of the water storage bucket, an aeration ring is fixedly connected. Above the aeration ring, an aeration head is fixedly connected. On one side surface of the water storage bucket, a micro-electrolysis rotating mechanism is fixedly arranged. On one side surface of the water storage bucket, a connecting pipe is fixedly connected. On one side surface of the connecting pipe, a water pump is fixedly connected. Below the water pump, a support plate is fixedly connected. Below the support plate, a second foot bracket is fixedly connected. On one side surface of the water pump, a filter bucket is fixedly connected. On one side surface of the filter bucket, a filter net is fixedly connected. On one side surface of the filter bucket, a water outlet pipe is fixedly connected;

[0006] The micro-electrolysis rotating mechanism includes a motor, a rotating shaft, a connecting column, a slag scraping knife, a packing mesh box, a water permeable hole, a bolt connecting block and a mesh box base. Below the water storage bucket, a motor is fixedly connected. Above the motor, a rotating shaft is fixedly connected. On one side surface of the rotating shaft, a connecting column is fixedly connected. On one side surface of the connecting column, a slag scraping knife is fixedly connected. On one side surface of the connecting column, a packing mesh box is fixedly connected. On one side surface of the packing mesh box, a water permeable hole is opened. On one side surface of the packing mesh box, a bolt connecting block is bolted. On one side surface of the bolt connecting block, a mesh box base is fixedly connected.

[0007] Preferably, multiple groups of the first foot brackets are symmetrically arranged with respect to the central axis of the bucket cover, and multiple groups of the iron plate electrodes are symmetrically arranged with respect to the central axis of the water storage bucket.

[0008] Preferably, multiple groups of the connecting columns are symmetrically distributed with respect to the central axis of the bucket cover, and multiple groups of the slag scraping knives are symmetrically distributed with respect to the central axis of the rotating shaft.

[0009] Preferably, multiple groups of the packing mesh boxes are symmetrically arranged with respect to the central axis of the rotating shaft, and multiple groups of the water permeable holes are opened on the packing mesh box.

[0010] Preferably, the mesh box base is fixedly connected to the packing mesh box through the bolt connecting block, and multiple groups of the bolt connecting blocks are symmetrically distributed with respect to the central axis of the packing mesh box.

[0011] Preferably, the inner wall dimensions of the sewage inlet are in line with the inner wall dimensions of the water outlet pipe, and multiple groups of the filter nets are symmetrically arranged with respect to the central axis of the filter bucket.

[0012] Preferably, a plurality of groups of the second foot brackets are symmetrically arranged with respect to the central axis of the support plate, and the inner wall size of the sewage inlet is matched with the inner wall size of the connecting pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: in this integrated device for micro-electrolysis and electrocoagulation of electroplating wastewater, through the setting of the micro-electrolysis rotating mechanism, when it is necessary to clean the sewage, the sewage is introduced into the storage bucket through the sewage inlet, the sewage pH is adjusted, and then the bucket cover is covered. Subsequently, the motor, the aerator switch and the electrocoagulation switch are started. The motor drives the rotation of the connecting column through the rotating shaft. Since the connecting column is fixedly connected with the slag scraping knife and the packing mesh box, the slag scraping knife and the packing mesh box rotate around the rotating shaft. At this time, the sewage undergoes a micro-electrolysis reaction through the packing in the packing mesh box, and the iron plate electrode is turned on to electrolyze the sewage. After the sewage is electrolyzed, flocculent substances are generated. Since the aeration head and the aeration ring generate bubbles, the flocculent substances are driven to the surface layer of the water surface. Subsequently, the flocculent substances are scraped into the floating slag discharge port by the slag scraping knife and discharged. After the liquid undergoes micro-electrolysis and electrocoagulation, it enters the water pump through the connecting pipe. The water pump pressurizes the liquid into the filter bucket. After being filtered by multiple filter meshes, finally, the purified liquid is discharged through the water outlet pipe. This device integrates multiple treatment steps such as micro-electrolysis, electrocoagulation and filtration, and can comprehensively and efficiently treat electroplating wastewater. The micro-electrolysis reaction decomposes organic substances and converts heavy metal ions through the packing, and electrocoagulation further removes pollutants to form flocculent substances. Finally, after being filtered by multiple filter meshes, it ensures that the quality of the discharged water meets the standards. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic side view of the external structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the mutual cooperation between the micro-electrolysis rotating mechanism of the present utility model and the storage bucket;

[0016] Figure 3 is a schematic diagram of the external structure of the micro-electrolysis rotating mechanism of the present utility model;

[0017] Figure 4 is a schematic diagram of the external structure of the filter bucket of the present utility model;

[0018] In the figure: 1. First foot bracket; 2. Water storage bucket; 3. Aerator switch; 4. Electrocoagulation switch; 5. Electrocoagulation coil; 6. Bucket cover; 7. Scum discharge port; 8. Sewage inlet; 9. Iron plate electrode; 10. Aeration ring; 11. Aeration head; 12. Micro-electrolysis rotating mechanism; 1201. Motor; 1202. Rotating shaft; 1203. Connecting column; 1204. Scum scraping knife; 1205. Packing mesh box; 1206. Water permeable hole; 1207. Bolt connecting block; 1208. Mesh box base; 13. Connecting pipe; 14. Water pump; 15. Support plate; 16. Second foot bracket; 17. Filter bucket; 18. Filter net; 19. Water outlet pipe. Detailed implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4 , the present invention provides a technical solution: an integrated device for micro-electrolysis and electrocoagulation of electroplating wastewater, including a first foot bracket 1, a water storage bucket 2 is fixedly connected to the upper surface of the first foot bracket 1, an aerator switch 3 is fixedly connected to one side surface of the water storage bucket 2, an electrocoagulation switch 4 is fixedly connected to the upper surface of the aerator switch 3, an electrocoagulation coil 5 is fixedly connected to one side surface of the water storage bucket 2, a bucket cover 6 is fixedly connected to the upper surface of the water storage bucket 2, a scum discharge port 7 is fixedly connected to one side surface of the water storage bucket 2, a sewage inlet 8 is fixedly connected to one side surface of the water storage bucket 2, an iron plate electrode 9 is fixedly connected to the inner surface of the water storage bucket 2, an aeration ring 10 is fixedly connected to the inner surface of the water storage bucket 2, an aeration head 11 is fixedly connected to the upper surface of the aeration ring 10, a micro-electrolysis rotating mechanism 12 is fixedly arranged on one side surface of the water storage bucket 2, a connecting pipe 13 is fixedly connected to one side surface of the water storage bucket 2, a water pump 14 is fixedly connected to one side surface of the connecting pipe 13, a support plate 15 is fixedly connected to the lower surface of the water pump 14, a second foot bracket 16 is fixedly connected to the lower surface of the support plate 15, a filter bucket 17 is fixedly connected to one side surface of the water pump 14, a filter net 18 is fixedly connected to one side surface of the filter bucket 17, and a water outlet pipe 19 is fixedly connected to one side surface of the filter bucket 17;

[0021] The micro-electrolysis rotating mechanism 12 includes a motor 1201, a rotating shaft 1202, a connecting column 1203, a slag scraping knife 1204, a packing mesh box 1205, a water permeable hole 1206, a bolt connecting block 1207 and a mesh box base 1208. The lower surface of the water storage bucket 2 is fixedly connected with the motor 1201, the upper surface of the motor 1201 is fixedly connected with the rotating shaft 1202, one side surface of the rotating shaft 1202 is fixedly connected with the connecting column 1203, one side surface of the connecting column 1203 is fixedly connected with the slag scraping knife 1204, one side surface of the connecting column 1203 is fixedly connected with the packing mesh box 1205, one side surface of the packing mesh box 1205 is provided with the water permeable hole 1206, one side surface of the packing mesh box 1205 is bolt-connected with the bolt connecting block 1207, and one side surface of the bolt connecting block 1207 is fixedly connected with the mesh box base 1208. Through the settings of the motor 1201, the rotating shaft 1202, the connecting column 1203, the slag scraping knife 1204, the packing mesh box 1205, the water permeable hole 1206, the bolt connecting block 1207 and the mesh box base 1208, when in use, sewage is introduced into the water storage bucket 2 through the sewage inlet 8. After adjusting the pH of the sewage, the bucket cover 6 is covered. Then, the motor 1201, the aerator switch 3 and the electrocoagulation switch 4 are started. The motor 1201 drives the rotation of the connecting column 1203 through the rotating shaft 1202. Since the connecting column 1203 is fixedly connected with the slag scraping knife 1204 and the packing mesh box 1205, the slag scraping knife 1204 and the packing mesh box 1205 rotate around the rotating shaft 1202. At this time, the sewage undergoes a micro-electrolysis reaction through the packing in the packing mesh box 1205, and the iron plate electrode 9 is turned on to electrolyze the sewage. After the sewage is electrolyzed, flocculent substances are generated. Since the aeration head 11 and the aeration ring 10 generate bubbles, the flocculent substances are driven to the water surface layer. Subsequently, the coagulated substances are scraped into the scum discharge port 7 by the slag scraping knife 1204 and discharged. After the liquid undergoes micro-electrolysis and electrocoagulation, it enters the water pump 14 through the connecting pipe 13. The water pump 14 pressurizes the liquid into the filter bucket 17. After being filtered by the multi-layer filter screen 18, finally, the purified liquid is discharged through the water outlet pipe 19. This device integrates multiple treatment steps such as micro-electrolysis, electrocoagulation and filtration, and can comprehensively and efficiently treat electroplating wastewater. The micro-electrolysis reaction decomposes organic matter and converts heavy metal ions through the packing, electrocoagulation further removes pollutants to form flocculent substances, and finally, after being filtered by the multi-layer filter screen, it ensures that the effluent water quality meets the standards.

[0022] Furthermore, multiple groups of the first foot brackets 1 are symmetrically arranged with respect to the central axis of the bucket cover 6, and multiple groups of the iron plate electrodes 9 are symmetrically arranged with respect to the central axis of the water storage bucket 2. Through the settings of the first foot brackets 1 and the iron plate electrodes 9, when in use, the symmetrically arranged first foot brackets 1 can make the supporting force received by the bucket cover in all directions more uniform, avoiding deformation or damage of the bucket cover due to uneven local stress. Similarly, the symmetrically arranged iron plate electrodes 9 can also make the water storage bucket more balanced in the operation process, improving the structural stability of the entire device.

[0023] Furthermore, there are multiple groups of connecting columns 1203 symmetrically distributed about the central axis of the barrel lid 6, and multiple groups of slag scraping knives 1204 symmetrically distributed about the central axis of the rotating shaft 1202. Through the settings of the rotating shaft 1202 and the slag scraping knives 1204, during use, when the symmetrically distributed slag scraping knives 1204 are rotating, the force received by the rotating shaft 1202 can be more balanced, ensuring the stable operation of the rotating shaft 1202, reducing vibrations and wear caused by uneven forces. The symmetrical distribution of multiple groups of slag scraping knives 1204 makes the slag scraping force more uniform, avoiding the situation of excessive or insufficient local slag scraping, which helps to keep the cleanliness of the water surface consistent and improve the overall slag scraping effect.

[0024] Furthermore, there are multiple groups of packing mesh boxes 1205 symmetrically arranged about the central axis of the rotating shaft 1202, and multiple groups of water permeable holes 1206 are provided in the packing mesh boxes 1205. Through the settings of the rotating shaft 1202, the packing mesh boxes 1205 and the water permeable holes 1206, during use, the symmetrically arranged multiple groups of packing mesh boxes 1205 greatly increase the contact area between the packing and the sewage. More packing can participate in the micro-electrolysis and electrocoagulation reactions, making the removal of pollutants in electroplating wastewater more efficient. The existence of the water permeable holes 1206 further promotes the full contact between the sewage and the packing, improving the reaction rate. The water permeable holes 1206 allow water to flow freely inside and outside the packing mesh boxes 1205, promoting the mixing of water flow. The symmetrically arranged packing mesh boxes 1205 further guide the water flow to form a more complex flow pattern, enhancing the mass transfer process between the pollutants in the sewage, the packing and the electrodes, and improving the treatment efficiency.

[0025] Furthermore, the mesh box base 1208 is fixedly connected to the packing mesh box 1205 through the bolt connection blocks 1207, and there are multiple groups of bolt connection blocks 1207 symmetrically distributed about the central axis of the packing mesh box 1205. Through the settings of the packing mesh box 1205, the bolt connection blocks 1207 and the mesh box base 1208, during use, if adjustments or replacements of the packing, the packing mesh box or the mesh box base are needed, the symmetrically distributed bolt connection blocks can provide more operating space and flexibility. Bolts can be loosened or tightened one by one according to needs for local adjustments or replacements without affecting the structural stability of the entire device.

[0026] Furthermore, the inner wall dimensions of the sewage inlet 8 and the inner wall dimensions of the water outlet pipe 19 match. Multiple groups of filter meshes 18 are symmetrically arranged about the central axis of the filter barrel 17. Through the settings of the sewage inlet 8 and the water outlet pipe 19, during use, the matching of the inner wall dimensions of the sewage inlet 8 and the water outlet pipe 19 enables the water flow to achieve a smooth transition when entering and leaving the device, reducing the resistance and turbulence of the water flow. This helps to maintain the stability of the water flow and improve the operating efficiency of the entire treatment system.

[0027] Further, multiple groups of second foot brackets 16 are symmetrically arranged with the axis of the support plate 15 as the center. The inner wall size of the sewage inlet 8 matches the inner wall size of the connecting pipe 13. Through the settings of the support plate 15 and the second foot brackets 16, during use, the symmetrically arranged second foot brackets 16 can make the support force received by the support plate 15 more uniform in all directions. When the device is operating, the support plate 15 needs to bear the weight of the upper structure and the acting forces generated by water flow, etc. Multiple groups of symmetrically distributed foot brackets can effectively disperse these forces, avoiding excessive local stress and resulting in deformation or damage of the support plate.

[0028] Working principle: For this integrated device for micro-electrolysis and electrocoagulation of electroplating wastewater, through the setting of the micro-electrolysis rotating mechanism 12, when it is necessary to clean the sewage, the sewage is introduced into the water storage bucket 2 through the sewage inlet 8. After adjusting the pH of the sewage, the bucket cover 6 is covered. Subsequently, the motor 1201, the aerator switch 3, and the electrocoagulation switch 4 are started. The motor 1201 drives the rotation of the connecting column 1203 through the rotating shaft 1202. Since the connecting column 1203 is fixedly connected to the slag scraping knife 1204 and the packing mesh box 1205, the slag scraping knife 1204 and the packing mesh box 1205 rotate around the rotating shaft 1202. At this time, the sewage undergoes a micro-electrolysis reaction through the packing in the packing mesh box 1205, and the iron plate electrode 9 is turned on to electrolyze the sewage. After the sewage is electrolyzed, flocculent substances are generated. Since the aeration head 11 and the aeration ring 10 generate bubbles, the flocculent substances are driven to the water surface layer. Subsequently, the flocculent substances are scraped into the scum discharge port 7 by the slag scraping knife 1204 and discharged. After the liquid undergoes micro-electrolysis and electrocoagulation, it enters the water pump 14 through the connecting pipe 13. The water pump 14 pressurizes the liquid and enters the filter barrel 17. After being filtered by multiple filter meshes 18, finally, the purified liquid is discharged through the water outlet pipe 19. This device integrates multiple treatment steps such as micro-electrolysis, electrocoagulation, and filtration, and can comprehensively and efficiently treat electroplating wastewater. The micro-electrolysis reaction decomposes organic substances and converts heavy metal ions through the packing, electrocoagulation further removes pollutants to form flocculent substances, and finally, after being filtered by multiple filter meshes, it ensures that the water quality of the effluent meets the standards. Among them, the model of the motor 1201 is YE2-132S-4, and the model of the water pump 14 is PW-175EAH.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Integrated device for micro-electrolysis and electrocoagulation of electroplating wastewater, comprising a first foot bracket (1), characterized in that: Above the upper surface of the first foot support (1), a water storage bucket (2) is fixedly connected. On one side surface of the water storage bucket (2), an aerator switch (3) is fixedly connected. Above the upper surface of the aerator switch (3), an electrocoagulation switch (4) is fixedly connected. On one side surface of the water storage bucket (2), an electrocoagulation coil (5) is fixedly connected. Above the upper surface of the water storage bucket (2), a bucket lid (6) is fixedly connected. On one side surface of the water storage bucket (2), a scum discharge port (7) is fixedly connected. On one side surface of the water storage bucket (2), a sewage inlet (8) is fixedly connected. On the inner surface of the water storage bucket (2), an iron plate electrode (9) is fixedly connected. On the inner surface of the water storage bucket (2), an aeration ring (10) is fixedly connected. Above the upper surface of the aeration ring (10), an aeration head (11) is fixedly connected. On one side surface of the water storage bucket (2), a microelectrolysis rotating mechanism (12) is fixedly arranged. On one side surface of the water storage bucket (2), a connecting pipe (13) is fixedly connected. On one side surface of the connecting pipe (13), a water pump (14) is fixedly connected. Below the lower surface of the water pump (14), a support plate (15) is fixedly connected. Below the lower surface of the support plate (15), a second foot support (16) is fixedly connected. On one side surface of the water pump (14), a filter bucket (17) is fixedly connected. On one side surface of the filter bucket (17), a filter net (18) is fixedly connected. On one side surface of the filter bucket (17), a water outlet pipe (19) is fixedly connected; The microelectrolysis rotating mechanism (12) includes a motor (1201), a rotating shaft (1202), a connecting column (1203), a slag scraping knife (1204), a packing mesh box (1205), a water permeable hole (1206), a bolt connection block (1207), and a mesh box base (1208). Below the lower surface of the water storage bucket (2), a motor (1201) is fixedly connected. Above the upper surface of the motor (1201), a rotating shaft (1202) is fixedly connected. On one side surface of the rotating shaft (1202), a connecting column (1203) is fixedly connected. On one side surface of the connecting column (1203), a slag scraping knife (1204) is fixedly connected. On one side surface of the connecting column (1203), a packing mesh box (1205) is fixedly connected. On one side surface of the packing mesh box (1205), a water permeable hole (1206) is opened. On one side surface of the packing mesh box (1205), a bolt connection block (1207) is bolted. On one side surface of the bolt connection block (1207), a mesh box base (1208) is fixedly connected.

2. The integrated device for micro-electrolysis and electrocoagulation of electroplating wastewater according to claim 1, wherein: Multiple groups of the first foot supports (1) are symmetrically arranged with respect to the central axis of the bucket lid (6). Multiple groups of the iron plate electrodes (9) are symmetrically arranged with respect to the central axis of the water storage bucket (2).

3. The integrated device for micro-electrolysis and electrocoagulation of electroplating wastewater according to claim 1, characterized in that: Multiple groups of the connecting columns (1203) are symmetrically distributed with respect to the central axis of the bucket lid (6). Multiple groups of the slag scraping knives (1204) are symmetrically distributed with respect to the central axis of the rotating shaft (1202).

4. The integrated device for micro-electrolysis and electrocoagulation of electroplating wastewater according to claim 1, wherein: Multiple groups of the packing mesh boxes (1205) are symmetrically arranged with respect to the central axis of the rotating shaft (1202). Multiple groups of the water permeable holes (1206) are opened in the packing mesh boxes (1205).

5. The integrated device for micro-electrolysis and electrocoagulation of electroplating wastewater according to claim 1, wherein: The cage base (1208) is fixedly connected to the packing cage (1205) through bolt connection blocks (1207), and multiple groups of bolt connection blocks (1207) are symmetrically distributed about the central axis of the packing cage (1205).

6. The integrated device for micro-electrolysis and electrocoagulation of electroplating wastewater according to claim 1, wherein: The inner wall dimensions of the sewage inlet (8) match the inner wall dimensions of the water outlet pipe (19), and multiple groups of filter meshes (18) are symmetrically arranged about the central axis of the filter barrel (17).

7. The integrated device for micro-electrolysis and electrocoagulation of electroplating wastewater according to claim 1, characterized in that: Multiple groups of the second foot brackets (16) are symmetrically arranged about the central axis of the support plate (15), and the inner wall dimensions of the sewage inlet (8) match the inner wall dimensions of the connecting pipe (13).

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