Activated carbon feeding device for water plant
By designing a combined motion stirring and spraying system in the raw water pipeline, and combining it with real-time monitoring and calculation models, the problem of uneven distribution of activated carbon was solved, and the high-efficiency adsorption effect of activated carbon in water treatment was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-04-03
AI Technical Summary
In existing technologies, activated carbon is unevenly distributed during water treatment, resulting in excessively high local concentrations, insufficient mixing, and low adsorption efficiency.
An activated carbon dosing device for water plants was designed. Utilizing the hydraulic conditions within the raw water pipeline, the device achieves 360° annular spraying of powdered activated carbon through the combined motion of a stirring rod and a nozzle. Real-time monitoring and adjustment are achieved using an electromagnetic flow meter and a servo-electric regulating valve. A dosing calculation model is established to ensure uniform distribution and efficient adsorption of the activated carbon.
This method achieves uniform distribution of powdered activated carbon in water, improves adsorption efficiency, reduces the problem of excessively high local concentrations, and ensures full utilization and efficient removal of activated carbon.
Smart Images
Figure CN224077101U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an activated carbon dosing device for water plants, belonging to the field of activated carbon dosing technology. Background Technology
[0002] Activated carbon is a specially treated type of carbon. Organic raw materials (such as fruit shells, coal, and wood) are heated in the absence of air to reduce non-carbon components (this process is called carbonization). Then, it reacts with gases, and the surface is eroded, producing a structure with well-developed micropores. It is usually a porous amorphous carbon in powder or granular form with strong adsorption capacity. Powdered activated carbon is often used in water treatment processes, and it needs to be added through a dosing device during the treatment process.
[0003] An activated carbon dispensing device disclosed in CN220520198 includes a container with a cavity, a feeder disposed on the container and communicating with the cavity, and a material conveying component connected to the feeder. The material conveying component is used to convey activated carbon powder into the feeder. The container has an inlet and an outlet. A mixing water source is received outside the inlet. A rotor flow meter and a water ejector are sequentially connected to the outlet through a fluid pipeline. The water ejector is used to draw activated carbon slurry from the cavity through the fluid pipeline for dispensing.
[0004] However, during use, the distribution of activated carbon is not effectively controlled during the addition process. When the activated carbon solution is added to the water, it often concentrates in a certain area and cannot be quickly and evenly diffused throughout the water body. As a result, the activated carbon concentration in that area is much higher than in other areas, resulting in a phenomenon of excessively high local concentration. Relying solely on the inflow of raw water to mix with the activated carbon solution is insufficient to ensure that the activated carbon solution is fully and evenly dispersed, further aggravating the problem of excessively high local concentration, which in turn leads to a decrease in overall adsorption efficiency. Utility Model Content
[0005] This invention provides an activated carbon dosing device for water plants to solve the problems of excessively high local concentration and low adsorption efficiency in the prior art.
[0006] This utility model provides an activated carbon dosing device for water plants, which includes a feeding section, a feeding section, a dispensing section, and a raw water pipeline. The dispensing section is located on the raw water pipeline, and the feeding section and the dispensing section are connected through the feeding section. The feeding section includes a feeding assembly and a feeding tank. The feeding tank is provided with a stirring assembly and a water injection hole corresponding to the feeding assembly. The dispensing section includes a fixed frame and a rotating frame. The fixed frame is fixedly connected to the raw water pipeline, and the two ends of the rotating frame are rotatably connected to the fixed frame and the raw water pipeline, respectively. The fixed frame and the rotating frame are provided with a first cavity and a second cavity connected to each other. The feeding section is connected to the first cavity, and the inner walls of the fixed frame and the rotating frame are provided with dispensing assemblies corresponding to the raw water pipeline.
[0007] Preferably, the raw water pipe has a notch corresponding to the dispensing part, the dispensing part is located inside the notch, and the fixed frame and the rotating frame are coaxial with the raw water pipe.
[0008] Preferably, the first cavity and the second cavity are annular cavities, and the first cavity and the second cavity are coaxial with the raw water pipe. The rotating frame is provided with a second driving component corresponding to the raw water pipe.
[0009] Preferably, the dispensing component includes a nozzle and a connecting plate. The nozzle is connected to the corresponding first cavity and second cavity, and the nozzle is connected to the corresponding fixed frame and rotating frame through the connecting plate.
[0010] Preferably, the stirring assembly includes a first stirring rod and a second stirring rod, and the first stirring rod and the second stirring rod are respectively provided with corresponding first stirring blades and second stirring blades, and the first stirring blades and the second stirring blades are linearly distributed on the first stirring rod and the second stirring rod, respectively.
[0011] Preferably, the stirring assembly is driven by a first driving assembly, which includes a first gear, a second gear, and a third gear. The first gear meshes with the second gear and the third gear, respectively. The top of the first stirring rod is fixedly connected to the second gear, and the top of the second stirring rod is fixedly connected to the third gear.
[0012] Preferably, the second drive assembly includes a fourth gear and a fifth gear, the fourth gear being located on the outer wall of the rotating frame and coaxial with the rotating frame, and the fifth gear meshing with the fourth gear.
[0013] Preferably, the nozzle is provided with multiple flow channels, which are distributed circumferentially on the nozzle and are inclined. The nozzle is rotatably connected to the connecting plate.
[0014] Preferably, the feeding unit includes a feeding tank and a conveying pipe. The unloading tank is connected to the feeding tank, and the feeding tank is connected to the first cavity through the conveying pipe. The end of the feeding tank near the conveying pipe has a tapered flared opening.
[0015] Preferably, the conveying pipeline is provided with a control component corresponding to the dispensing unit. The control component includes a servo electric regulating valve and an electromagnetic flow meter, and the servo electric regulating valve and the electromagnetic flow meter are electrically connected.
[0016] The beneficial effects of this utility model are:
[0017] This invention provides an activated carbon dosing device for water plants. By adding powdered activated carbon into the raw water pipeline, the device utilizes the favorable hydraulic conditions within the pipeline to facilitate sufficient contact and adsorption between the powdered activated carbon and pollutants. Compared to adding powdered activated carbon to the reaction tank within the plant, although the dosage is lower and the adsorption time is shorter, good removal results are still achieved. An asymmetric stirring path is formed by the linearly staggered distribution of the first and second stirring blades on the first and second stirring rods. This design effectively avoids the problem of powdered activated carbon clumping and significantly improves the uniformity of water-carbon mixing. The dosing unit allows the rotating frame to rotate circumferentially around the raw water pipeline, thereby driving the nozzle to rotate circumferentially on the inner wall of the raw water pipeline to disseminate the powdered activated carbon solution. This achieves a 360° annular spraying of the powdered activated carbon solution along the raw water pipeline, effectively avoiding the problem of excessively high local concentrations and improving the overall adsorption efficiency. The nozzle is equipped with multiple diversion channels, which can induce vortex diffusion, further enhancing the uniformity of spraying. Meanwhile, the nozzle and connecting plate are rotatably connected, allowing the nozzle to rotate under the influence of water flow. This combined revolution and rotation motion not only increases the spray coverage but also creates a spiral spray trajectory, completely eliminating blind spots. By introducing an electromagnetic flowmeter to monitor the raw water in real time and dynamically adjusting the opening of the servo-electric regulating valve based on the monitoring results, the dosage of powdered activated carbon can be adjusted in real time, automatically adapting to changes in raw water flow and improving the accuracy and efficiency of dosing. Furthermore, a calculation model for the powdered activated carbon dosage was established based on parameters such as raw water flow, pollutant concentration coefficient, and target removal rate, further improving the dosing precision. The rotation speed of the rotating frame is logarithmically related to the flow rate, ensuring that the nozzle speed adjusts accordingly when the raw water flow changes. This guarantees that the nozzle maintains optimal spraying effect under different flow rates, thereby improving the utilization rate and adsorption efficiency of the activated carbon. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of an activated carbon dosing device for water plants according to the present invention.
[0019] Figure 2This is a schematic diagram of the activated carbon dosing device for water plants from another angle.
[0020] Figure 3 This is a cross-sectional structural schematic diagram of an activated carbon dosing device for water plants according to the present invention.
[0021] Figure 4 This is a schematic diagram of the stirring component structure of an activated carbon dosing device for water plants according to the present invention.
[0022] Figure 5 This is a schematic diagram of the dispensing section of an activated carbon dispensing device for water plants according to the present invention.
[0023] Figure 6 This is a schematic diagram of the dispensing component structure of an activated carbon dispensing device for water plants according to this utility model.
[0024] Figure 7 This is a schematic diagram of the second drive component of an activated carbon dosing device for water plants according to the present invention.
[0025] Figure 8 This is a schematic diagram of the process flow of an activated carbon dosing device for water plants according to the present invention.
[0026] In the diagram: 1. Feeding section, 11. Feeding assembly, 12. Feeding tank, 13. Mixing assembly, 131. First mixing rod, 132. First mixing blade, 133. Second mixing rod, 134. Second mixing blade, 14. First drive assembly, 141. First gear, 142. Second gear, 143. Third gear, 2. Feeding section, 21. Feeding tank, 22. Conveying pipe, 3. Dispensing section, 31. Raw water pipe, 32. Fixed frame, 33. Rotating frame, 34. Dispensing assembly, 341. Nozzle, 3411. Diversion channel, 342. Connecting plate, 35. Second drive assembly, 351. Fourth gear, 352. Fifth gear. Detailed Implementation
[0027] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0028] Example 1: This utility model provides an activated carbon dosing device for water plants, which includes a feeding part 1, a feeding part 2, a dosing part 3, a raw water pipe 31, and the dosing part 3 is located on the raw water pipe 31. The feeding part 1 and the dosing part 3 are connected through the feeding part 2.
[0029] The feeding section 1 includes a feeding assembly 11 and a feeding tank 12. The feeding assembly 11 is located between the top of the feeding tank 12 and is connected to it through a feeding pipe 01. The feeding pipe 01 is equipped with a corresponding solenoid valve. The feeding tank 12 is equipped with a corresponding stirring assembly 13 and a water injection hole 02. The stirring assembly 13 feeds powdered activated carbon 03. This activated carbon feeding device is a wet feeding method.
[0030] The stirring assembly 13 includes a first stirring rod 131 and a second stirring rod 133. The first stirring rod 131 and the second stirring rod 133 are respectively provided with corresponding first stirring blades 132 and second stirring blades 134. There are multiple first stirring blades 132 and second stirring blades 134. The multiple first stirring blades 132 and second stirring blades 134 are respectively located on the first stirring rod 131 and the second stirring rod 133 in a linear staggered distribution. The first stirring rod 131 and the second stirring rod 133 are driven by a first driving assembly 14.
[0031] The first drive assembly 14 includes a first gear 141, a second gear 142, and a third gear 143. The first gear 141 meshes with the second gear 142 and the third gear 143 respectively. The third gear 143 is an internal gear. The first gear 141 is driven by a motor. The top of the first stirring rod 131 is fixedly connected to the second gear 142, and the top of the second stirring rod 133 is fixedly connected to the third gear 143.
[0032] The dispensing unit 3 includes a fixed frame 32 and a rotating frame 33. The raw water pipe 31 has an annular notch corresponding to the dispensing unit 3, and the dispensing unit 3 is located inside the notch. The fixed frame 32, the rotating frame 33, and the raw water pipe 31 are coaxial. The fixed frame 32 is fixedly connected to one side of the raw water pipe 31, and the rotating frame 33 is located on the other side of the fixed frame 32 and is rotatably connected to the raw water pipe 31 and the fixed frame 32 via a second driving assembly 35. The fixed frame 32 and the rotating frame 33 respectively have a first cavity 04 and a second cavity 05. The first cavity 04... The second cavities 05 are interconnected, and the feeding part 2 is interconnected with the first cavity 04, conveying powdered activated carbon 03 solution into the first cavity 04. Both the first cavity 04 and the second cavity 05 are annular cavities. The inner sides of the fixed frame 32 and the rotating frame 33 are provided with corresponding dispensing components 34. The dispensing component 34 includes a nozzle 341 and a connecting plate 342. The nozzle 341 is connected to the corresponding first cavity 04 and second cavity 05, and is connected to the inner walls of the fixed frame 32 and the rotating frame 33 through the connecting plate 342. The nozzle 341 is provided with a one-way valve.
[0033] The second drive assembly 35 includes a fourth gear 351 and a fifth gear 352. The fourth gear 351 is located on the outer wall of the rotating frame 33 and is fixedly connected to the rotating frame 33. The fourth gear 351 and the rotating frame 33 are coaxial. The fifth gear 352 meshes with the fourth gear 351 and is driven by a motor.
[0034] In use, powdered activated carbon 03 is pre-added to the feeding assembly 11. The solenoid valve is opened to control the metered flow of powdered activated carbon 03 from the feeding assembly 11 into the lower tank 12. Water is then injected into the lower tank 12 through the water injection hole 02. A motor drives the first gear 141 to rotate, which meshes with the second gear 142 and the third gear 143, thereby rotating the first stirring rod 131 and the second stirring rod 133. The first stirring blade 132 and the second stirring blade 134 stir and mix the powdered activated carbon 03 and water inside the lower tank 12 to form a powdered activated carbon 03 solution. The first stirring blade 132 and the second stirring blade 134 are linearly staggered to form an asymmetrical stirring path, effectively preventing the powdered activated carbon 03 from clumping and improving the uniformity of water-carbon mixing. The mixed powdered activated carbon 03 solution is then conveyed to the feeding section 2. Inside cavity 04, the first cavity 04 and the second cavity 05 are interconnected. Powdered activated carbon solution 03 flows from the first cavity 04 to the second cavity 05. The powdered activated carbon solution 03 in the first cavity 04 and the second cavity 05 is sprayed into the raw water in the raw water pipe 31 through nozzle 341. During the process of adding powdered activated carbon solution 03 to the raw water in the raw water pipe 31, the motor drives the fifth gear 352 to rotate. The fifth gear 352 meshes with the fourth gear 351, thereby driving the rotating frame 33 to rotate around the raw water pipe 31. The rotating frame 33 drives the nozzle 341 on the inner wall of the rotating frame 33 to rotate around the inner wall of the raw water pipe 31 to add powdered activated carbon solution 03. This achieves 360° dynamic ring spraying of powdered activated carbon solution 03 along the raw water pipe 31, avoiding the decrease in adsorption efficiency caused by excessively high local concentration.
[0035] During operation, powdered activated carbon was added to the raw water pipeline 31 in the raw water pumping station. Due to the favorable hydraulic conditions within pipeline 31, the powdered activated carbon achieved sufficient contact and adsorption of 2-MIB. After the same batch of raw water entered the plant, the 2-MIB concentration significantly decreased to 1.47–2.77 ng / L. This indicates that, under the condition of adding powdered activated carbon only in the raw water pipeline, the 2-MIB removal rate can reach 55%–77%. Subsequently, after conventional water treatment processes, the 2-MIB concentration in the effluent further decreased to 0.74–2.05 ng / L. The overall removal rate was between 84% and 93% when the concentration of 2-MIB in the raw water was between 7.97 and 12.35 ng / L. Compared with the treatment by adding powdered activated carbon 03 in the reaction tank, the hydraulic conditions in the reaction tank gradually stabilized, and the mixing effect was not ideal, resulting in the powdered activated carbon failing to fully contact the 2-MIB in the water. In addition, the added powdered activated carbon may be directly coated by the flocs formed in the reaction tank and then settle to the bottom of the tank, thereby reducing the contact area and time between the powdered activated carbon and the pollutants in the water, resulting in poor removal effect of 2-MIB. The concentration of 2-MIB in the effluent was still between 7.97 and 12.35 ng / L, and the removal rate was only 8% to 41%. When powdered activated carbon 03 was added to the raw water pipeline 31, the dosage was lower and the adsorption time was shorter, but good removal effect was still achieved.
[0036] Compared with existing technologies, the linear staggered distribution of the first stirring blades 132 and the second stirring blades 134 on the first stirring rod 131 and the second stirring rod 133 forms an asymmetric stirring path, effectively preventing the agglomeration of powdered activated carbon 03 and improving the uniformity of water-carbon mixing. This ensures a more uniform activated carbon solution, which is beneficial to the adsorption efficiency in subsequent treatment processes. The rotating frame 33 can rotate circumferentially around the raw water pipe 31, driving the nozzle 341 to rotate circumferentially on the inner wall of the raw water pipe 31, realizing a 360° annular dynamic spraying of the powdered activated carbon solution along the raw water pipe 31. This avoids excessively high local concentrations, thereby improving the overall adsorption efficiency. The addition of powdered activated carbon to the raw water pipe 31 utilizes the better hydraulic conditions within the pipe, which helps the powdered activated carbon to fully contact and adsorb 2-MIB. Although the dosage and adsorption time are relatively low, good removal results are still achieved despite the addition of powdered activated carbon to the raw water pipe 31. In contrast, adding powdered activated carbon to the reaction tank in the plant results in poor removal efficiency due to unstable hydraulic conditions, unsatisfactory mixing, and the possibility of the powdered activated carbon being coated with flocs.
[0037] Example 2: In the above examples, even if the rotating frame 33 rotates, the nozzle 341 is fixed in direction, resulting in a single spraying path, which easily leads to periodic concentration fluctuations. Furthermore, the flow rate of the traditional conveying pipeline is insufficient, relying on external pump pressurization. Therefore, this application example optimizes the feeding section 2 and the dispensing section 3 based on the above examples.
[0038] In this embodiment, the nozzle 341 is provided with multiple flow channels 3411. The multiple flow channels 3411 are located on the nozzle 341 in a circular distribution. The flow channels 3411 are located on the surface of the nozzle 341 with an inclined design. The inclination angle of the flow channels 3411 forms an angle of 15°-30° with the water flow direction, which triggers vortex diffusion. The nozzle 341 and the connecting plate 342 are rotatably connected.
[0039] The feeding section 2 includes a feeding tank 21 and a conveying pipe 22. The bottom of the unloading tank 12 is connected to the top of the feeding tank 21. The unloading tank 12 is equipped with a solenoid valve corresponding to the feeding tank 21. The feeding tank 21 is connected to the first cavity 04 through the conveying pipe 22. The end of the feeding tank 21 near the conveying pipe 22 is a tapered flared mouth, which uses the Bernoulli effect to form a negative pressure zone and accelerate the flow rate of the powdered activated carbon 03 solution.
[0040] During use, the end of the feeding tank 21 is connected to the conveying pipe 22, and a negative pressure zone is formed by utilizing the Bernoulli effect to accelerate the flow rate of the powdered activated carbon 03 solution. This works in conjunction with the external pump pressurization to reduce the risk of powdered activated carbon 03 settling in the pipe. As the raw water flows inside the raw water pipe 31, the water flow washes the drainage groove 3411 on the surface of the nozzle 341, thereby driving the nozzle 341 to rotate on the connecting plate 342. While the rotating frame 33 drives the nozzle 341 to rotate, the nozzle 341 can also rotate under the action of the water flow, realizing a compound motion of revolution and rotation, forming a spiral spray trajectory, completely eliminating spray dead angles, thereby further avoiding excessively high local concentrations and improving the overall adsorption efficiency. The rotation speed adapts to the water flow speed, avoiding local concentration deviations caused by fluctuations in the raw water flow.
[0041] Compared with existing technologies, the nozzle 341 is equipped with multiple diversion grooves 3411 to induce vortex diffusion, which enhances the uniformity of spraying. The nozzle 341 and the connecting plate 342 are rotatably connected. The nozzle 341 rotates under the action of water flow, which not only increases the coverage of spraying, but also realizes the compound motion of revolution and rotation, forming a spiral spray trajectory, completely eliminating spray dead angles. The rotation speed of the nozzle 341 adapts to the water flow speed, which can cope with the fluctuation of the raw water flow and avoid local concentration deviation caused by flow changes. The end of the feeding tank 21 near the conveying pipe 22 is designed as a tapering flared mouth, which uses the Bernoulli effect to form a negative pressure zone. Through the cooperation of the Bernoulli effect and the pressurization of the external pump, the conveying efficiency of the solution is further improved, ensuring the uniform distribution and rapid delivery of powdered activated carbon.
[0042] Example 3: In the above examples, the powdered activated carbon O3 solution relies on a fixed feeding rate or manual experience adjustment, which cannot respond to flow fluctuations in real time. Therefore, this application example optimizes the feeding unit 2 and the dispensing unit 3 based on the above examples.
[0043] In this embodiment, a control component 06 corresponding to the dispensing part 3 is provided at one end of the conveying pipe 22 near the first cavity 04. The control component 06 includes a servo electric regulating valve 061 and an electromagnetic flow meter 062. The electromagnetic flow meter 062 monitors the flow rate of the raw water in real time and outputs a signal. A calculation model for the dosage of powdered activated carbon 03 is established between the servo electric regulating valve 061 and the electromagnetic flow meter 062.
[0044]
[0045] in:
[0046] Activated carbon dosage (kg / h);
[0047] Pollutant concentration coefficient (dynamically adjusted based on 2-MIB detection values);
[0048] Raw water flow rate (m³ / h);
[0049] :time;
[0050] Target removal rate;
[0051] The servo-electric regulating valve 061 dynamically adjusts its opening degree according to the flow signal. Increase by 10%, and the servo valve opening will increase by 10% simultaneously to ensure that the powdered activated carbon input is matched with the water flow rate.
[0052] Rotating frame 33 rotation speed and flow rate Logarithmic relation:
[0053]
[0054] in:
[0055] : Sprayer head revolution speed (rpm);
[0056] Traffic volume is The maximum speed (rpm) at that time;
[0057] Raw water flow rate (m³ / h);
[0058] Flow rate at maximum rotational speed;
[0059] At a flow rate of 5000 m³ / h, the rotation speed reaches 30 rpm.
[0060] Compared with existing technologies, by introducing an electromagnetic flowmeter 062 to monitor the raw water flow in real time and outputting a signal to the servo electric regulating valve 061, real-time adjustment of the powdered activated carbon dosage is achieved. This allows for automatic adaptation to changes in raw water flow, improving the accuracy and efficiency of dosage. A powdered activated carbon dosage calculation model is established, calculating the dosage in real time based on parameters such as raw water flow, pollutant concentration coefficient, and target removal rate. The dosage is precisely controlled by the servo electric regulating valve 061, significantly improving the dosage accuracy and reducing activated carbon waste. The opening of the servo electric regulating valve 061 is dynamically correlated with the raw water flow; when the raw water flow increases by 10%, the servo valve opening increases by 10% synchronously, ensuring that the powdered activated carbon input matches the water flow rate. This allows for automatic adaptation to dosage requirements under different flow rates. The revolution speed of the nozzle 341 is logarithmically related to the raw water flow; when the raw water flow changes, the rotation speed of the nozzle 341 also adjusts accordingly, ensuring that the nozzle 341 maintains the optimal spraying effect under different flow rates, improving the utilization rate and adsorption efficiency of activated carbon.
[0061] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A water plant with activated carbon feeding device, comprising a feeding part (1), a feeding part (2), a feeding part (3), a raw water pipeline (31), the feeding part (3) is located on the raw water pipeline (31), the feeding part (1) and the feeding part (3) are connected through the feeding part (2), characterized in that: The blanking part (1) includes a feeding assembly (11) and a blanking tank (12), the blanking tank (12) is provided with a stirring assembly (13) corresponding to the feeding assembly (11) and a water injection hole, the feeding part (3) includes a fixed frame (32) and a rotating frame (33), the fixed frame (32) is fixedly connected with the raw water pipeline (31), the rotating frame (33) is rotatably connected with the fixed frame (32) and the raw water pipeline (31) at both ends, the fixed frame (32) and the rotating frame (33) are provided with a first cavity and a second cavity connected with each other, the feeding part (2) is connected with the first cavity, and the inner walls of the fixed frame (32) and the rotating frame (33) are provided with a feeding assembly (34) corresponding to the raw water pipeline (31).
2. The activated carbon dosing device for a water treatment plant according to claim 1, characterized by: The raw water pipeline (31) is provided with a notch corresponding to the feeding part (3), and the feeding part (3) is located inside the notch.
3. The activated carbon dosing device for a water treatment plant according to claim 1, characterized by: The first cavity and the second cavity are annular cavities, the first cavity and the second cavity are coaxial with the raw water pipeline (31), and the rotating frame (33) is provided with a second driving assembly (35) corresponding to the raw water pipeline (31).
4. The activated carbon dosing device for a water treatment plant according to claim 1, characterized by: The feeding assembly (34) includes a spray head (341) and a connecting plate (342), the spray head (341) is connected with the corresponding first cavity and second cavity, and the spray head (341) is connected with the corresponding fixed frame (32) and rotating frame (33) through the connecting plate (342).
5. The activated carbon dosing device for a water treatment plant according to claim 1, characterized by: The stirring assembly (13) includes a first stirring rod (131) and a second stirring rod (133), the first stirring rod (131) and the second stirring rod (133) are respectively provided with a first stirring blade (132) and a second stirring blade (134) corresponding thereto, and the first stirring blade (132) and the second stirring blade (134) are linearly distributed on the first stirring rod (131) and the second stirring rod (133) respectively.
6. The activated carbon dosing device for a water treatment plant according to claim 5, characterized by: The stirring assembly (13) is driven by the first driving assembly (14), the first driving assembly (14) includes a first gear (141), a second gear (142) and a third gear (143), the first gear (141) is engaged with the second gear (142) and the third gear (143) respectively, the top of the first stirring rod (131) is fixedly connected with the second gear (142), and the top of the second stirring rod (133) is fixedly connected with the third gear (143).
7. The activated carbon dosing device for a water treatment plant according to claim 3, characterized by: The second driving assembly (35) includes a fourth gear (351) and a fifth gear (352), the fourth gear (351) is located on the outer wall of the rotating frame (33) and coaxial with the rotating frame (33), and the fifth gear (352) is engaged with the fourth gear (351).
8. The activated carbon dosing device for a water treatment plant according to claim 4, characterized by: A plurality of flow guide grooves (3411) are arranged on the spray head (341) and are distributed in a circle, the flow guide grooves (3411) are designed to be inclined, and the spray head (341) is rotationally connected with the connecting plate (342).
9. The activated carbon dosing device for a water treatment plant according to claim 1, characterized by: The feeding part (2) comprises a feeding tank (21) and a conveying pipeline (22), the discharging tank (12) is connected with the feeding tank (21), the feeding tank (21) is connected with the first cavity in communication through the conveying pipeline (22), and the feeding tank (21) is a tapered horn mouth close to one end of the conveying pipeline (22).
10. The activated carbon dosing apparatus for a water treatment plant according to claim 9, characterized by: A control assembly corresponding to the feeding part (3) is arranged on the conveying pipeline (22), the control assembly comprises a servo electric regulating valve and an electromagnetic flowmeter, and the servo electric regulating valve is electrically connected with the electromagnetic flowmeter.