Coagulation and flocculation device for removing micro-plastics in sewage

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a coagulation and flocculation device for removing microplastics in sewage, which comprises a treatment mechanism, and a purification mechanism is arranged at the top of the treatment mechanism; the treatment mechanism comprises a bottom frame, a top frame is bolted to the top of the bottom frame, a feeding frame is fixedly connected to the top of the top frame, a filter screen is fixedly connected to the interior of the feeding frame, a stirring rod is rotatably connected to the inner wall of the bottom frame, a motor is fixedly connected to the left side of the stirring rod, and a scraper is arranged on the outer side of the stirring rod. A discharge pipe is fixedly connected to the right side of the bottom frame, a switch valve is fixedly mounted in the discharge pipe, a sedimentation tank is arranged on the left side of the bottom frame, a water pump is fixedly connected to the rear of the sedimentation tank, and a telescopic pipe and a drainage pipe are fixedly connected to the two ends of the water pump respectively. According to the coagulation and flocculation device for removing the micro-plastics in the sewage, the micro-plastics and other pollutants in the sewage are effectively removed, and the sewage purification treatment effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a coagulation and flocculation device for removing microplastics in sewage. Background Art

[0002] Microplastics usually refer to plastic fragments and particles with a diameter of less than 5 mm, which are widely present in the natural environment, including water, soil and air. In particular, microplastics in water pose a threat to aquatic ecosystems and human health due to their small size, difficulty in degradation and the possibility of carrying harmful substances.

[0003] According to Chinese patent publication number CN219907060U, a sewage treatment device is disclosed, which is used to solve the technical problem of reliable installation of sewage treatment devices. A sewage treatment device includes a sewage treatment device and a base assembly; the base assembly includes a longitudinal beam, a cross beam and a foundation column, a plurality of cross beams are arranged between the longitudinal beams on both sides, and a plurality of foundation columns are also provided, which are respectively arranged at the lower ends of the longitudinal beams; the foundation column and the end of the cross beam are arranged at intervals in the longitudinal extension direction of the longitudinal beam, and the sewage treatment device is arranged on the cross beam.

[0004] However, the above-mentioned devices are not effective in removing microplastics from sewage and cannot meet the high standards for water quality. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a coagulation and flocculation device for removing microplastics in sewage, which effectively removes microplastics and other pollutants in sewage and achieves the effect of sewage purification.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A coagulation and flocculation device for removing microplastics in sewage, comprising a treatment mechanism, a purification mechanism being arranged on the top of the treatment mechanism;

[0008] The processing mechanism includes a bottom frame, a top frame is bolted to the top of the bottom frame, a feed frame is fixedly connected to the top of the top frame, a filter is fixedly connected to the inside of the feed frame, a stirring rod is rotatably connected to the inner wall of the bottom frame, a motor is fixedly connected to the left side of the stirring rod, a scraper is arranged on the outside of the stirring rod, a discharge pipe is fixedly connected to the right side of the bottom frame, a switch valve is fixedly installed inside the discharge pipe, a sedimentation tank is arranged on the left side of the bottom frame, a water pump is fixedly connected to the rear of the sedimentation tank, and a telescopic pipe and a drain pipe are fixedly connected to both ends of the water pump.

[0009] Specifically, through the above technical scheme, by opening the cover, the sewage is injected into the bottom frame and the top frame through the feed frame, the sewage is preliminarily filtered through the filter net inside the feed frame to remove large particles of impurities, and then an appropriate amount of coagulant is added to the bottom frame and the top frame according to the total amount of sewage injected, the cover is closed, and the motor is started. After the motor is started, the stirring rod is driven to rotate in the bottom frame to stir the sewage and the coagulant. During the stirring process, the coagulant reacts with the microplastics in the sewage to cause the microplastics to condense into larger flocs. The scraper on the outside of the stirring rod cleans the residue on the inner wall of the bottom frame and the top frame as the stirring rod rotates to ensure the stirring effect. The stirring rod is driven by the motor to circulate and stir the sewage and coagulant inside the bottom frame and the top frame. Under the action of the coagulant, the microplastic particles in the sewage undergo charge neutralization, adsorption bridging and other reactions with the coagulant, and quickly aggregate into larger flocs. This process may take a certain amount of time The specific time depends on the water quality and microplastic content of the sewage. After stirring, it is discharged into the sedimentation tank through the discharge pipe on the left side of the bottom frame. The discharge and closing of the discharge pipe are controlled by the switch valve to discharge the treated sewage and microplastic flocs. The discharged sewage and microplastic flocs are collected and treated by the sedimentation tank located below the discharge pipe. The stirred sewage enters the sedimentation tank for sedimentation. In the sedimentation tank, the flocs sink to the bottom of the tank due to gravity, while the clean water floats on top. The operator adjusts the position of the telescopic pipe inside the sedimentation tank according to the clean water position inside the sedimentation tank, and starts the water pump. After the water pump is started, the upper clean water is extracted from the sedimentation tank through the telescopic pipe and injected into the external storage device or water pool through the drain pipe. The flocs at the bottom of the sedimentation tank can be discharged through the scraper for further treatment or disposal, thereby effectively removing microplastics and other pollutants in the sewage and achieving the effect of sewage purification.

[0010] Preferably, fixing holes are provided on the front and rear sides above the bottom frame and the top frame, and the motor is fixedly connected to the left side of the bottom frame.

[0011] Preferably, a supporting leg is fixedly connected to the bottom of the bottom frame.

[0012] Preferably, the left side of the sedimentation tank is overlapped with the right side of the supporting leg, and the sedimentation tank is located below the discharge pipe.

[0013] Preferably, the telescopic pipe is movably connected inside the sedimentation tank.

[0014] Preferably, the purification mechanism comprises a cover plate, and an activated carbon plate is inserted on the right side of the cover plate.

[0015] Preferably, the cover plate is snap-connected to the top of the feed frame, and an exhaust hole is provided on the top of the cover plate.

[0016] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0017] First, the utility model opens the cover plate, injects the sewage into the bottom frame and the top frame through the feed frame, and the sewage is preliminarily filtered through the filter screen inside the feed frame to remove large particles of impurities, and then an appropriate amount of coagulant is added to the bottom frame and the top frame according to the total amount of sewage injected, closes the cover plate, and starts the motor. After the motor is started, it drives the stirring rod to rotate in the bottom frame to stir the sewage and the coagulant. During the stirring process, the coagulant reacts with the microplastics in the sewage to cause the microplastics to condense into larger flocs. The scraper on the outside of the stirring rod cleans the residues on the inner walls of the bottom frame and the top frame as the stirring rod rotates to ensure the stirring effect. The stirring rod is driven by the motor to circulate and stir the sewage and coagulant inside the bottom frame and the top frame. Under the action of the coagulant, the microplastic particles in the sewage undergo charge neutralization, adsorption bridging and other reactions with the coagulant, and quickly aggregate into larger flocs. This process may take a certain amount of time. The time depends on the water quality and microplastic content of the sewage. After stirring, it is discharged into the sedimentation tank through the discharge pipe on the left side of the bottom frame. The discharge and closing of the discharge pipe are controlled by the switch valve to discharge the treated sewage and microplastic flocs. The discharged sewage and microplastic flocs are collected and treated by the sedimentation tank located below the discharge pipe. The stirred sewage enters the sedimentation tank for sedimentation. In the sedimentation tank, the flocs sink to the bottom of the tank due to gravity, while the clean water floats on top. The operator adjusts the position of the telescopic pipe inside the sedimentation tank according to the clean water position inside the sedimentation tank, and starts the water pump. After the water pump is started, the upper clean water is extracted from the sedimentation tank through the telescopic pipe and injected into the external storage device or water pool through the drain pipe. The flocs at the bottom of the sedimentation tank can be discharged through the scraper for further treatment or disposal, thereby effectively removing microplastics and other pollutants in the sewage and achieving the effect of sewage purification.

[0018] Secondly, the utility model engages the cover plate on the top of the feed frame, and when treating the sewage inside the bottom frame and the top frame, the activated carbon plate inserted on the right side of the cover plate is used to absorb the odor generated during the sewage treatment and absorb the residual harmful substances, thereby further improving the purification effect and facilitating the replacement of the activated carbon plate. The purified gas is discharged through the exhaust hole on the top of the cover plate, thereby achieving the effect of treating the waste gas generated during the sewage treatment and protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structural processing mechanism of the utility model;

[0021] Figure 3 It is a partial schematic diagram of the structure of the utility model;

[0022] Figure 4It is a schematic diagram of the structural purification mechanism of the utility model;

[0023] Figure 5 It is a schematic diagram of the structural section of the utility model.

[0024] Among them: 1. Processing mechanism; 101. Bottom frame; 102. Top frame; 103. Feed frame; 104. Filter; 105. Stirring rod; 106. Motor; 107. Scraper; 108. Discharge pipe; 109. Switch valve; 110. Sedimentation tank; 111. Water pump; 112. Telescopic pipe; 113. Drain pipe; 114. Support leg; 2. Purification mechanism; 201. Cover plate; 202. Activated carbon plate. DETAILED DESCRIPTION

[0025] The following will further describe the specific implementation of the utility model in detail with reference to the accompanying drawings. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 .

[0026] A coagulation and flocculation device for removing microplastics from sewage, see Figure 1-Figure 5 , comprising a processing mechanism 1, a purification mechanism 2 is arranged on the top of the processing mechanism 1;

[0027] The processing mechanism 1 includes a bottom frame 101, a top frame 102 is bolted to the top of the bottom frame 101, a feed frame 103 is fixedly connected to the top of the top frame 102, a filter screen 104 is fixedly connected inside the feed frame 103, a stirring rod 105 is rotatably connected to the inner wall of the bottom frame 101, a motor 106 is fixedly connected to the left side of the stirring rod 105, a scraper 107 is arranged on the outside of the stirring rod 105, a discharge pipe 108 is fixedly connected to the right side of the bottom frame 101, a switch valve 109 is fixedly installed inside the discharge pipe 108, a sedimentation tank 110 is arranged on the left side of the bottom frame 101, a water pump 111 is fixedly connected to the rear of the sedimentation tank 110, and a telescopic pipe 112 and a drain pipe 113 are fixedly connected to both ends of the water pump 111 respectively.

[0028] According to the above technical solution, by opening the cover plate 201, the sewage is injected into the bottom frame 101 and the top frame 102 through the feed frame 103, and the sewage is initially filtered through the filter screen 104 inside the feed frame 103 to remove large particles of impurities, and then according to the total amount of injected sewage, a proper amount of coagulant is added to the bottom frame 101 and the top frame 102, and the cover plate 201 is closed, and the motor 106 is started. After the motor 106 is started, the stirring rod 105 is driven to rotate in the bottom frame 101 to stir the sewage and the coagulant. During the stirring process, the coagulant and the sewage are mixed. The microplastics in the sewage react to form larger floccules. The scraper 107 on the outside of the stirring rod 105 cleans the residues on the inner wall of the bottom frame 101 and the top frame 102 as the stirring rod 105 rotates to ensure the stirring effect. The stirring rod 105 is driven by the motor 106 to circulate and stir the sewage and coagulant inside the bottom frame 101 and the top frame 102. Under the action of the coagulant, the microplastic particles in the sewage react with the coagulant to neutralize the charge, adsorb and bridge, and quickly aggregate into larger floccules. This process may take a while. The specific time depends on the water quality and microplastic content of the sewage. After the stirring is completed, the sewage is discharged into the sedimentation tank 110 through the discharge pipe 108 on the left side of the bottom frame 101. The discharge and closing of the discharge pipe 108 are controlled by the switch valve 109 to discharge the treated sewage and microplastic flocs. The discharged sewage and microplastic flocs are collected and processed by the sedimentation tank 110 located below the discharge pipe 108. The stirred sewage enters the sedimentation tank 110 for sedimentation. In the sedimentation tank 110, the flocs sink to the bottom of the tank due to gravity. The clean water floats on top, and the operator adjusts the position of the telescopic tube 112 inside the sedimentation tank 110 according to the position of the clean water inside the sedimentation tank 110, and starts the water pump 111. After the water pump 111 is started, the upper clean water is extracted from the sedimentation tank 110 through the telescopic tube 112, and injected into the external storage device or water pool through the drain pipe 113. The flocculants at the bottom of the sedimentation tank 110 can be discharged through the scraper for further treatment or disposal, thereby effectively removing microplastics and other pollutants in the sewage and achieving the effect of sewage purification.

[0029] Specifically, fixing holes are opened on the front and rear sides of the bottom frame 101 and the top frame 102 , and the motor 106 is fixedly connected to the left side of the bottom frame 101 .

[0030] Through the above technical solution, fixing holes are opened on the front and rear sides above the bottom frame 101 and the top frame 102, and bolts are used to fix the bottom frame 101 and the top frame 102 to form a closed container for containing sewage to be treated. The motor 106 is fixed to the left side of the bottom frame 101 to provide power for the stirring rod 105.

[0031] Specifically, a support leg 114 is fixedly connected to the bottom of the bottom frame 101 .

[0032] Through the above technical solution, the support legs 114 are fixed to the bottom of the bottom frame 101 to support the entire device, making it easier to use the device.

[0033] Specifically, the left side of the sedimentation tank 110 overlaps with the right side of the support leg 114 , and the sedimentation tank 110 is located below the discharge pipe 108 .

[0034] Through the above technical solution, by overlapping the left side of the sedimentation tank 110 with the right side of the support leg 114, the sedimentation tank 110 is located below the discharge pipe 108 to precipitate flocculants in the sewage.

[0035] Specifically, the telescopic pipe 112 is movably connected inside the sedimentation tank 110 .

[0036] Through the above technical solution, the water pump 111 transports the settled clean water back to the external storage device through the telescopic tube 112 and the drain pipe 113 for circulation treatment.

[0037] Specifically, the purification mechanism 2 includes a cover plate 201 , and an activated carbon plate 202 is inserted on the right side of the cover plate 201 .

[0038] Through the above technical solution, by engaging the cover plate 201 on the top of the feed frame 103, when treating the sewage inside the bottom frame 101 and the top frame 102, the activated carbon plate 202 inserted on the right side of the cover plate 201 can also be easily replaced to absorb the odor generated during sewage treatment and absorb residual harmful substances, thereby further improving the purification effect. The purified gas is discharged through the exhaust hole opened on the top of the cover plate 201, thereby achieving the effect of treating the waste gas generated during sewage treatment and protecting the environment.

[0039] Specifically, the cover plate 201 is snap-fitted to the top of the feed frame 103 , and an exhaust hole is provided on the top of the cover plate 201 .

[0040] Through the above technical solution, the cover plate 201 is snapped onto the top of the feed frame 103 to close the feed port and prevent sewage from splashing out. An exhaust hole is provided on the top of the cover plate 201 to discharge the gas generated inside the device and maintain ventilation inside the device.

[0041] When in use, by opening the cover plate 201, the sewage is injected into the bottom frame 101 and the top frame 102 through the feed frame 103, and the sewage is initially filtered through the filter screen 104 inside the feed frame 103 to remove large particles of impurities, and then according to the total amount of sewage injected, a proper amount of coagulant is added to the bottom frame 101 and the top frame 102, and the cover plate 201 is closed. The motor 106 and the internal circuit connection of the water pump 111 are all existing technologies, which will not be described in detail here, and the motor 106 is started. After the motor 106 is started, it drives the stirring rod 105 to rotate in the bottom frame 101 , stirring the sewage and coagulant. During the stirring process, the coagulant reacts with the microplastics in the sewage to cause the microplastics to condense into larger flocs. The scraper 107 on the outside of the stirring rod 105 cleans the residues on the inner walls of the bottom frame 101 and the top frame 102 as the stirring rod 105 rotates to ensure the stirring effect. The stirring rod 105 is driven by the motor 106 to circulate and stir the sewage and coagulant inside the bottom frame 101 and the top frame 102. Under the action of the coagulant, the microplastic particles in the sewage react with the coagulant to neutralize the charge, adsorb and bridge, and quickly aggregate into larger flocs. The process may take a certain amount of time, depending on the quality of the sewage and the content of microplastics. After the stirring is completed, the sewage is discharged into the sedimentation tank 110 through the discharge pipe 108 on the left side of the bottom frame 101. The discharge and closing of the discharge pipe 108 are controlled by the switch valve 109 to discharge the treated sewage and microplastic flocs. The discharged sewage and microplastic flocs are collected and processed by the sedimentation tank 110 located below the discharge pipe 108. The stirred sewage enters the sedimentation tank 110 for sedimentation. In the sedimentation tank 110, the flocs are separated by gravity. The microplastics sink to the bottom of the pool, while the clean water floats on top. The operator adjusts the position of the telescopic tube 112 inside the sedimentation tank 110 according to the position of the clean water inside the sedimentation tank 110, and starts the water pump 111. After the water pump 111 is started, the upper clean water is extracted from the sedimentation tank 110 through the telescopic tube 112, and injected into the external storage device or the water pool through the drain pipe 113. The flocculants at the bottom of the sedimentation tank 110 can be discharged through the scraper for further treatment or disposal, thereby effectively removing the microplastics and other pollutants in the sewage and achieving the effect of purifying the sewage.

[0042] Although specific embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coagulation and flocculation device for removing microplastics from sewage, comprising a treatment mechanism (1), characterized in that: A purification mechanism (2) is provided on the top of the processing mechanism (1); The processing mechanism (1) comprises a bottom frame (101), the top of the bottom frame (101) is bolted to a top frame (102), the top of the top frame (102) is fixedly connected to a feed frame (103), the inside of the feed frame (103) is fixedly connected to a filter screen (104), the inner wall of the bottom frame (101) is rotatably connected to a stirring rod (105), the left side of the stirring rod (105) is fixedly connected to a motor (106), the outer side of the stirring rod (105) is provided with a scraper (107), the right side of the bottom frame (101) is fixedly connected to a discharge pipe (108), the inside of the discharge pipe (108) is fixedly installed with a switch valve (109), the left side of the bottom frame (101) is provided with a sedimentation tank (110), the rear of the sedimentation tank (110) is fixedly connected to a water pump (111), and the two ends of the water pump (111) are respectively fixedly connected to a telescopic pipe (112) and a drainage pipe (113).

2. A coagulation and flocculation device for removing microplastics from sewage according to claim 1, characterized in that: Fixing holes are provided on the front and rear sides of the bottom frame (101) and the top frame (102), and the motor (106) is fixedly connected to the left side of the bottom frame (101).

3. A coagulation and flocculation device for removing microplastics from sewage according to claim 1, characterized in that: A supporting leg (114) is fixedly connected to the bottom of the bottom frame (101).

4. The coagulation and flocculation device for removing microplastics from sewage according to claim 1, characterized in that: The left side of the sedimentation tank (110) overlaps with the right side of the support leg (114), and the sedimentation tank is located below the discharge pipe (108).

5. The coagulation and flocculation device for removing microplastics from sewage according to claim 1, characterized in that: The telescopic pipe (112) is movably connected inside the sedimentation tank (110).

6. The coagulation and flocculation device for removing microplastics from sewage according to claim 1, characterized in that: The purification mechanism (2) comprises a cover plate (201), and an activated carbon plate (202) is inserted into the right side of the cover plate (201).

7. A coagulation and flocculation device for removing microplastics from sewage according to claim 6, characterized in that: The cover plate (201) is snap-fitted and connected to the top of the feed frame (103), and an exhaust hole is provided on the top of the cover plate (201).

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