Sewage treatment device for ecological environment treatment
By designing a sewage treatment device for rotating aeration components and agitating shell, the problems of fixed installation of fillers and oxygen diffusion in traditional devices are solved, and the uniformity and efficiency of sewage treatment are improved.
Patent Information
- Application Number
- CN202411778572.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-02-14
AI Technical Summary
In traditional sewage treatment devices, the fixed installation of fillers leads to uneven distribution of pollutants and poor treatment effect; oxygen diffusion in aeration technology leads to uneven contact between fillers and oxygen, affecting the purification effect.
A sewage treatment device including a rotary aeration assembly and agitating housing is designed. Through the combination of an air pump, agitating housing and filler, the active contact between the filler and the wastewater is achieved, and oxygen is directly inputted to the filler through the rotary aeration assembly.
It improves the uniformity and efficiency of sewage treatment, ensures that sewage in different areas is fully purified and treated, and improves the overall sewage treatment efficiency and quality.
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Figure CN119430465A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of sewage treatment devices, in particular to a sewage treatment device for ecological environment treatment. Background Art
[0002] Rivers have always been regarded as the main sewage discharge channels and places for sewage. Excessive pollution directly causes eutrophication of water bodies, and even causes the water to turn black and form black and smelly water bodies. River pollution is widespread and has become a water environment problem that needs to be solved urgently. Generally, sewage treatment equipment is needed in the treatment of river sewage.
[0003] According to the published patent 202021312238.5, a sewage treatment device for ecological environment governance includes: a floating plate; a grid frame, a filler is fixedly installed on the bottom end of the grid frame through a filler bracket, and a plurality of fillers are provided; an aeration mechanism, the aeration mechanism includes a blower aerator and an aeration main pipe, the air outlet end of the blower aerator is fixedly connected to an air supply pipe, and the end of the air supply pipe away from the air outlet end of the blower aerator is fixedly connected to the inside of the aeration main pipe, an aeration branch pipe is fixedly installed on the bottom surface of the aeration main pipe, and a plurality of aeration branch pipes are provided, and nozzles are fixedly installed on both sides of the outer wall of the aeration branch pipe; the utility model has a simple structure and is convenient and quick to operate through the installed floating plate. It only needs to be put into the river channel, and it has very good practicality. Through the installed aeration mechanism, the filler can be better in contact with oxygen, and the uniformity of the contact between the filler and oxygen is improved, thereby further improving the sewage purification effect.
[0004] However, in traditional sewage treatment devices, fillers are often fixed and installed in specific positions. However, the distribution of pollutants in sewage is often uneven, that is, there are differences in the degree of pollution in different areas. This uneven distribution of pollutants causes the fillers in fixed positions to treat sewage in different areas. The treatment effect will be different, affecting the overall sewage treatment efficiency and quality. In addition, in order to improve the purification effect of sewage, aeration technology is usually used to increase the contact opportunity between oxygen and fillers. However, in actual operation, after oxygen is sprayed from the aeration head, it will be distributed in a diffused form, resulting in inconsistent contact effects between fillers and oxygen at different positions. This uneven contact effect will have a negative impact on the purification effect of sewage, making it impossible for sewage in some areas to be fully purified. To this end, a new technical solution needs to be designed to solve this problem. Summary of the invention
[0005] The purpose of the present invention is to overcome the shortcomings of the prior art, adapt to actual needs, and provide a sewage treatment device for ecological environment management to solve the problem that in the current traditional sewage treatment devices, fillers are often fixed and installed in specific positions. However, the distribution of pollutants in sewage is often uneven, that is, there are differences in the degree of pollution in different areas. This uneven distribution of pollutants causes the fillers in fixed positions to treat sewage in different areas. The treatment effect will be different, affecting the overall sewage treatment efficiency and quality. In addition, in order to improve the purification effect of sewage, aeration technology is usually used to increase the contact opportunity between oxygen and fillers. However, in actual operation, after oxygen is sprayed from the aeration head, it will be distributed in a diffused form, resulting in inconsistent contact effects between fillers and oxygen at different positions. This uneven contact effect will have a negative impact on the purification effect of sewage, making sewage in certain areas not be fully purified. Technical problem.
[0006] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is: designing a sewage treatment device for ecological environment governance, including a device box, the top of the device box is an open structure, a concave plate body is installed on the top of the device box, a first motor is installed on the side of the concave plate body, a threaded rod is connected to one side of the first motor, the end of the threaded rod away from the first motor passes through the concave plate body and the moving block and is rotatably connected to the first bearing, the first bearing is installed on the inner side of the concave plate body, the screw hole in the moving block is threadedly connected to the threaded rod, the top of the moving block passes through a limiting rod, both ends of the limiting rod are fixed with concave plates, and a rotating aeration assembly is provided at the bottom of the moving block.
[0007] Preferably, the rotary aeration assembly includes a second motor, a rotating rod, a first gear, a second gear, a rotary joint, a first pipeline, a second pipeline, an air pump, and an air intake pipeline.
[0008] Preferably, the air pump is installed on one side of the bottom of the moving block, the side of the air pump is connected to an air intake pipe, the bottom of the air pump is connected to a first pipe, and the bottom of the first pipe is rotatably connected to a rotary joint.
[0009] Preferably, a first gear passes through the outside of the rotating joint, and the penetration position of the first gear and the rotating joint is fixed, a second gear is meshed with the side of the first gear, a rotating rod is fixed on the top of the second gear, a second motor is connected to the top of the rotating rod, and the second motor is installed on the other side of the bottom of the moving block.
[0010] Preferably, the bottom of the rotary joint is fixedly connected to a second pipe, the bottom of the second pipe is a sealed structure, the bottom of the second pipe extends into the device box, second bearings are passed through the upper and lower ends of the outside of the second pipe, and the second bearing is rotatably connected to the penetration position of the second pipe, and concave scrapers are fixed on both sides of the second bearing.
[0011] Preferably, multiple stirring shells are installed on both sides of the second pipe, and placement cavities are opened on the surfaces of the multiple stirring shells. Partition nets are installed at both ends of the placement cavities. A square hole is opened on the top of the stirring shell, a cover plate is installed inside the square hole, and fillers are placed inside the placement cavity.
[0012] Preferably, both sides of the second pipe are connected to multiple third pipes, and one end of the multiple third pipes away from the second pipe passes through multiple stirring shells and extends into the placement cavity of the stirring shell. The end surface of the third pipe located in the placement cavity is connected to multiple aeration heads.
[0013] Preferably, fixing plates are fixed at both upper and lower ends of the inner side surface of the concave scraper, and an electric heating tube is fixed between the upper and lower fixing plates.
[0014] Preferably, a control host is installed on the side of the device box, and the bottoms of both the front and rear ends of the device box are connected to one end of a tube body, and the other end of the tube body is detachably connected to a tube cover.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. The present invention combines an air pump, a stirring shell and a filler, which can not only utilize the transmission between gears to drive the second pipe and multiple stirring shells to rotate, so as to utilize multiple stirring shells to fully mix the sewage and the treatment agent, but also arrange the filler inside the multiple stirring shells, so that in the process of stirring the sewage, the sewage will pass through the multiple stirring shells and contact the filler in the stirring shells, so that the filler actively contacts the sewage at different positions, thereby improving the effect of sewage treatment. Moreover, in the process of rotating the stirring shell, the air pump can be used to input external gas into the multiple third pipes on the surface of the second pipe, and oxygen can be directly input into the center of the filler in the multiple stirring shells through the aeration heads on the surface of the multiple third pipes, thereby realizing direct and sufficient contact of oxygen with the fillers at different positions, thereby improving the effect of sewage treatment. The effect of sewage treatment solves the problem that in traditional sewage treatment devices, fillers are often fixed and installed in specific positions. However, the distribution of pollutants in sewage is often uneven, that is, there are differences in the degree of pollution in different areas. This uneven distribution of pollutants causes the fillers in fixed positions to treat sewage in different areas. The treatment effect will be different, affecting the overall sewage treatment efficiency and quality. In addition, in order to improve the purification effect of sewage, aeration technology is usually used to increase the contact opportunity between oxygen and fillers. However, in actual operation, after oxygen is sprayed out from the aeration head, it will be distributed in a diffused form, resulting in inconsistent contact effects between fillers and oxygen in different positions. This uneven contact effect will have a negative impact on the purification effect of sewage, making it impossible for sewage in some areas to be fully purified.
[0017] 2. The present invention combines bearings, concave scrapers and threaded rods, which can not only utilize the threaded rod to drive the moving block and the stirring shell to move, so as to treat sewage at different positions in the device box, but also, in the process of the threaded rod driving the moving block to move, the concave scraper will be driven to move. The concave scraper will move in the device box to scrape off the dirt attached to the inner wall of the device box. At the same time, due to the provision of bearings, when the second pipeline drives multiple stirring shells to rotate, it will not drive the concave scraper to rotate, so that during the rotation of the stirring shell, the threaded rod can drive the stirring shell and the concave scraper to move at the same time, so as to scrape off the dirt and stir the sewage at the same time.
[0018] 3. The present invention combines a concave scraper, a fixed plate and an electric heating tube. When the concave scraper moves in the device box, and during the process of scraping dirt on the inner wall of the device box, the multiple electric heating tubes arranged on the inner wall of the concave scraper are used to heat the sewage at different positions in the device box, thereby achieving high-temperature disinfection of the sewage at different positions in the device box, and further improving the effect of sewage treatment. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1It is a schematic diagram of the overall structure of the present invention;
[0020] Figure 2 It is a schematic diagram of the bottom structure of the concave plate body of the present invention;
[0021] Figure 3 It is a schematic diagram of the enlarged structure of point A of the present invention;
[0022] Figure 4 It is a schematic diagram of the internal structure of the stirring shell of the present invention.
[0023] In the figure: 1. device box; 101. tube body; 102. tube cover; 103. control host; 2. concave plate; 201. first motor; 202. threaded rod; 203. first bearing; 204. moving block; 205. air pump; 206. first pipeline; 207. first gear; 208. rotary joint; 209. second pipeline; 210. air intake pipeline; 211. second gear; 212. rotary rod; 213. second motor; 214. stirring shell; 215. placement cavity; 216. partition net; 217. square hole; 218. cover plate; 219. third pipeline; 220. aeration head; 221. filler; 222. limit rod; 3. second bearing; 301. concave scraper; 302. fixed plate; 303. electric heating tube. DETAILED DESCRIPTION
[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments:
[0025] Example 1: A sewage treatment device for ecological environment treatment, see Figures 1 to 4, including a device box 1, the top of the device box 1 is an open structure, a concave plate 2 is installed on the top of the device box 1, a first motor 201 is installed on the side of the concave plate 2, a threaded rod 202 is connected to one side of the first motor 201, the end of the threaded rod 202 away from the first motor 201 passes through the concave plate 2 and the moving block 204 and is rotatably connected to the first bearing 203, the first bearing 203 is installed on the inner side of the concave plate 2, the screw hole in the moving block 204 is threadedly connected to the threaded rod 202, the top of the moving block 204 passes through the limiting rod 222, the concave plate 2 is fixed at both ends of the limiting rod 222, and a rotating aeration component is arranged at the bottom of the moving block 204. After the sewage enters the inside of the device box 1, the first motor 201 is turned on first, and the first motor The machine 201 drives the threaded rod 202 to rotate. Since the threaded rod 202 is threadedly connected to the screw hole in the moving block 204, the moving block 204 is driven to move horizontally. During the movement of the moving block 204, the second pipe 209 and the plurality of stirring shells 214 are driven to move inside the device box 1. When the plurality of stirring shells 214 are moving in the device box 1, the second motor 213 can be turned on. The second motor 213 drives the second gear 211. The second gear 211 drives the first gear 207. The first gear 207 drives the rotary joint 208. The rotary joint 208 rotates around the first pipe 206. During the rotation of the rotary joint 208, the second pipe 209 and the plurality of stirring shells 214 are driven to rotate in the sewage. Thus, the sewage and the treatment agent are fully mixed by using the multiple stirring shells 214, and the fillers 221 are arranged inside the multiple stirring shells 214, so that when the stirring shells 214 stir the sewage, the sewage will pass through the partitions 216 on the surfaces of the multiple stirring shells 214, so that the sewage enters the placement cavity 215 and flows, and contacts the fillers 221 in the placement cavity 215, so that the fillers 221 actively contact the sewage at different positions, thereby improving the sewage treatment effect. Moreover, during the rotation of the stirring shells 214, the air pump 205 can be turned on, and the air pump 205 can be used to draw external gas into the multiple third pipes 219 on the surface of the second pipe 209, and the aeration heads 202 on the surface of the multiple third pipes 219 can be used to pump the external gas into the multiple third pipes 219. 20. Oxygen is directly input into the center of the fillers 221 in the multiple stirring shells 214, so that oxygen can directly and fully contact with the fillers 221 at different positions, thereby improving the effect of sewage treatment and solving the problem that in traditional sewage treatment devices, the fillers 221 are often fixedly installed at specific positions. However, the distribution of pollutants in sewage is often uneven, that is, there are differences in the degree of pollution in different areas. This uneven distribution of pollutants causes the fillers 221 at fixed positions to have different treatment effects when treating sewage in different areas, thus affecting the overall sewage treatment efficiency and quality. In addition, in order to improve the purification effect of sewage, aeration technology is usually used to increase the contact opportunities between oxygen and the fillers 221. However, in actual operation,After the oxygen is sprayed out from the aeration head 220, it will be distributed in a diffused form, resulting in inconsistent contact effects between the fillers 221 at different positions and the oxygen. This uneven contact effect will have a negative impact on the sewage purification effect, resulting in a technical problem that the sewage in some areas cannot be fully purified.
[0026] For details, see Figure 2 The rotary aeration assembly includes a second motor 213 , a rotating rod 212 , a first gear 207 , a second gear 211 , a rotary joint 208 , a first pipeline 206 , a second pipeline 209 , an air pump 205 , and an air intake pipeline 210 .
[0027] For more details, see Figure 2 The air pump 205 is installed on one side of the bottom of the moving block 204. The side of the air pump 205 is connected to an air intake pipe 210. The bottom of the air pump 205 is connected to a first pipe 206. The bottom of the first pipe 206 is rotatably connected to a rotary joint 208.
[0028] For further information, see Figure 2 A first gear 207 passes through the outside of the rotating joint 208, and the penetration position of the first gear 207 and the rotating joint 208 is fixed. A second gear 211 is meshed with the side of the first gear 207. A rotating rod 212 is fixed on the top of the second gear 211. A second motor 213 is connected to the top of the rotating rod 212. The second motor 213 is installed on the other side of the bottom of the moving block 204.
[0029] Further, see Figure 3 The bottom of the rotary joint 208 is fixedly connected with a second pipe 209, the bottom of the second pipe 209 is a sealed structure, the bottom of the second pipe 209 extends into the device box 1, the upper and lower ends of the second pipe 209 are penetrated by second bearings 3, and the second bearing 3 is rotatably connected to the penetration position of the second pipe 209, and concave scrapers 301 are fixed on both sides of the second bearing 3. In the process of the threaded rod 202 driving the moving block 204 and the second pipe 209 to move, since the second bearing 3 is arranged outside the second pipe 209, it can bring The second bearing 3 moves together, and the second bearing 3 drives the concave scraper 301 to move, so that the concave scraper 301 can be used to scrape off the dirt attached to the inner wall of the device box 1. The second bearing 3 is rotatably connected to the second pipe 209. When the second pipe 209 drives the multiple stirring shells 214 to rotate, it will not drive the concave scraper 301 to rotate. During the rotation of the stirring shell 214, the threaded rod 202 can drive the stirring shell 214 and the concave scraper 301 to move at the same time, thereby scraping off the dirt and stirring the sewage at the same time.
[0030] It is worth noting that see Figure 3A plurality of stirring shells 214 are installed on both sides of the second pipe 209, and a placement cavity 215 is opened on the surface of the plurality of stirring shells 214. A partition net 216 is installed at both ends of the placement cavity 215. A square hole 217 is opened on the top of the stirring shell 214, and a cover plate 218 is installed inside the square hole 217. A filler 221 is placed inside the placement cavity 215.
[0031] It is worth noting that see Figure 4 Both sides of the second pipe 209 are connected to multiple third pipes 219. One end of the multiple third pipes 219 away from the second pipe 209 passes through multiple stirring shells 214 and extends into the placement cavity 215 of the stirring shell 214. The surface of one end of the third pipe 219 located in the placement cavity 215 is connected to multiple aeration heads 220.
[0032] It is worth mentioning that see Figure 4 Fixed plates 302 are fixed at both upper and lower ends of the inner side of the concave scraper 301, and an electric heating tube 303 is fixed between the upper and lower fixed plates 302. When the concave scraper 301 moves in the device box 1 to scrape the dirt on the inner wall of the device box 1, the multiple electric heating tubes 303 arranged on the inner wall of the concave scraper 301 can be opened, and the multiple electric heating tubes 303 are moved inside the device box 1 to heat the sewage at different positions in the device box 1, thereby realizing high-temperature disinfection of the sewage at different positions in the device box 1, and further improving the effect of sewage treatment.
[0033] It is worth emphasizing that see Figure 1 A control host 103 is installed on the side of the device box 1, and the bottoms of the front and rear ends of the device box 1 are connected to one end of the tube body 101, and the other end of the tube body 101 is detachably connected to the tube cover 102.
[0034] When using a sewage treatment device for ecological environment treatment, first turn on the first motor 201, the first motor 201 drives the threaded rod 202 to rotate, because the threaded rod 202 is threadedly connected to the screw hole in the moving block 204, it will drive the moving block 204 to move horizontally, and in the process of moving the moving block 204, it will drive the second pipe 209 and multiple stirring shells 214 to move inside the device box 1. When the multiple stirring shells 214 move in the device box 1, the second motor 213 can be turned on, the second motor 213 drives the second gear 211, the second gear 211 drives the first gear 207, and the first gear 207 drives the rotary joint 208, and the rotary joint 208 surrounds the first pipe 206 rotates, and during the rotation of the rotary joint 208, the second pipe 209 and the plurality of stirring shells 214 are driven to rotate in the sewage, so that the sewage and the treatment agent are fully mixed by the plurality of stirring shells 214. Moreover, the fillers 221 are arranged inside the plurality of stirring shells 214, so that when the stirring shells 214 stir the sewage, the sewage will pass through the partition nets 216 on the surfaces of the plurality of stirring shells 214, so that the sewage enters the placement cavity 215 and flows, and contacts with the fillers 221 in the placement cavity 215, so that the fillers 221 actively contact with the sewage at different positions, thereby improving the effect of sewage treatment. Moreover, during the rotation of the stirring shell 214, the fillers 221 can be opened. The air pump 205 is used to draw external gas into the multiple third pipes 219 on the surface of the second pipe 209, and the oxygen is directly input into the center of the fillers 221 in the multiple stirring shells 214 through the aeration heads 220 on the surface of the multiple third pipes 219, so that the oxygen is directly in full contact with the fillers 221 at different positions, thereby improving the effect of sewage treatment. Since the second bearing 3 is arranged outside the second pipe 209, it can drive the second bearing 3 to move together, and the second bearing 3 will drive the concave scraper 301 to move, so that the concave scraper 301 is used to scrape off the dirt attached to the inner wall of the device box 1, and the second bearing 3 is rotatably connected to the second pipe 209, and the second pipe 209 is connected to the second pipe 209. When the pipe 209 drives the multiple stirring shells 214 to rotate, it will not drive the concave scraper 301 to rotate, so that when the stirring shell 214 rotates, the threaded rod 202 can drive the stirring shell 214 and the concave scraper 301 to move simultaneously, thereby scraping off dirt and stirring sewage. When the concave scraper 301 moves in the device box 1 to scrape off the dirt on the inner wall of the device box 1, the multiple electric heating tubes 303 arranged on the inner wall of the concave scraper 301 can be opened, and the multiple electric heating tubes 303 are used to move inside the device box 1 to heat the sewage at different positions in the device box 1, thereby achieving high-temperature disinfection of the sewage at different positions in the device box 1, and further improving the effect of sewage treatment.
[0035] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in this field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in this field. Needless to say, the content protected by the present invention does not involve improvements to internal structures and methods.
[0036] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.
Claims
1. A sewage treatment device for ecological environment treatment, comprising a device housing (1), wherein the top of the device housing (1) is an open structure, characterized in that: A concave plate body (2) is installed on the top of the device housing (1), a first motor (201) is installed on the side of the concave plate body (2), a threaded rod (202) is connected to one side of the first motor (201), an end of the threaded rod (202) away from the first motor (201) passes through the concave plate body (2) and a moving block (204) and is rotatably connected to a first bearing (203), the first bearing (203) is installed on the inner side of the concave plate body (2), a screw hole in the moving block (204) is threadedly connected to the threaded rod (202), a limiting rod (222) passes through the top end of the moving block (204), both ends of the limiting rod (222) are fixed to the concave plate body (2), and a rotating aeration component is arranged at the bottom of the moving block (204).
2. The sewage treatment device for ecological environment treatment as claimed in claim 1, characterized in that: The rotary aeration assembly comprises a second motor (213), a rotary rod (212), a first gear (207), a second gear (211), a rotary joint (208), a first pipeline (206), a second pipeline (209), an air pump (205), and an air intake pipeline (210).
3. The sewage treatment device for ecological environment treatment as claimed in claim 2, characterized in that: The air pump (205) is installed on one side of the bottom of the moving block (204); the side of the air pump (205) is connected to an air intake pipe (210); the bottom of the air pump (205) is connected to a first pipe (206); the bottom of the first pipe (206) is rotatably connected to a rotary joint (208).
4. The sewage treatment device for ecological environment treatment as claimed in claim 2, characterized in that: A first gear (207) passes through the outside of the rotating joint (208), and the penetration position of the first gear (207) and the rotating joint (208) is fixed. A second gear (211) is meshed with the side of the first gear (207), and a rotating rod (212) is fixed on the top of the second gear (211). A second motor (213) is connected to the top of the rotating rod (212), and the second motor (213) is installed on the other side of the bottom of the moving block (204).
5. The sewage treatment device for ecological environment treatment as claimed in claim 2, characterized in that: The bottom of the rotary joint (208) is fixedly connected to a second pipe (209), the bottom of the second pipe (209) is a sealed structure, the bottom of the second pipe (209) extends into the device housing (1), the upper and lower ends of the second pipe (209) are penetrated by second bearings (3), and the second bearing (3) is rotatably connected to the penetration position of the second pipe (209), and concave scrapers (301) are fixed on both sides of the second bearing (3).
6. The sewage treatment device for ecological environment treatment as claimed in claim 2, characterized in that: A plurality of stirring shells (214) are installed on both sides of the second pipe (209); a placement cavity (215) is provided on the surface of the plurality of stirring shells (214); both ends of the placement cavity (215) are provided with a partition net (216); a square hole (217) is provided on the top of the stirring shell (214); a cover plate (218) is installed inside the square hole (217); and a filler (221) is placed inside the placement cavity (215).
7. The sewage treatment device for ecological environment treatment as claimed in claim 2, characterized in that: Both sides of the second pipe (209) are connected to a plurality of third pipes (219); one end of the plurality of third pipes (219) away from the second pipe (209) passes through a plurality of stirring shells (214) and extends into a placement cavity (215) of the stirring shell (214); and one end surface of the third pipe (219) located in the placement cavity (215) is connected to a plurality of aeration heads (220).
8. The sewage treatment device for ecological environment treatment as claimed in claim 5, characterized in that: Fixed plates (302) are fixed at both upper and lower ends of the inner side surface of the concave scraper (301), and an electric heating tube (303) is fixed between the upper and lower fixed plates (302).
9. The sewage treatment device for ecological environment treatment as claimed in claim 1, characterized in that: A control host (103) is installed on the side of the device box (1), and the bottoms of both the front and rear ends of the device box (1) are connected to one end of a tube body (101), and the other end of the tube body (101) is detachably connected to a tube cover (102).
Citation Information
Patent Citations
Sewage treatment device for ecological environment treatment
CN212687679U
A high -efficient mixing stirring device for sewage treatment
CN207805488U
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