Sewage dosing device and municipal sewage treatment system
By designing the dosing tank, dosing pump, and rotating dosing pipe of the dosing device, the problems of limited dosing area and uneven mixing of the agent were solved, achieving uniform mixing of the agent and the sewage, improving the sewage treatment effect and reducing energy consumption.
Patent Information
- Application Number
- CN202521399847.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-04
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-04
AI Technical Summary
In existing technologies, the chemical dosing area of wastewater dosing devices is limited and the mixing is uneven, resulting in complex wastewater treatment system structures, high energy consumption, and increased costs.
A wastewater dosing device was designed, including a dosing tank, a dosing pump, a delivery pipe, and a rotatable outlet pipe. The agent is delivered to the delivery pipe by the dosing pump and sprayed into the aeration tank through the oppositely arranged spray nozzles. The reaction force of the sprayed agent causes the outlet pipe to rotate, so as to achieve extensive spraying and stirring of the agent in the aeration tank.
It achieves uniform mixing of the reagent and the wastewater, improving the wastewater treatment effect and efficiency, while reducing production energy consumption and avoiding additional stirring structures and power sources.
Smart Images
Figure CN224677813U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sewage treatment equipment technology, and in particular to a sewage dosing device and a municipal sewage treatment system. Background Technology
[0002] Municipal wastewater, also known as urban sewage, refers to wastewater generated by urban residents during daily life, commercial activities, and industrial production. It includes domestic sewage, industrial wastewater, and stormwater runoff. Currently, the main treatment for municipal sewage involves introducing it into an aeration tank and adding a series of agents such as flocculants, oxidants, and reducing agents to allow it to react, settle, and filter, thus achieving wastewater purification.
[0003] In related technologies, the above-mentioned agents are mainly added by pumping the prepared reaction liquid into the aeration tank. The area to which the agents are added is not only relatively limited, but also results in uneven mixing of the agents and wastewater. In order to solve the problem of uneven mixing, an additional stirring device must be added, which not only makes the structure of the pollution treatment system more complicated, but also increases production energy consumption and production costs. Utility Model Content
[0004] The main purpose of this invention is to provide a wastewater dosing device that aims to reduce the energy consumption of dosing while making the chemicals mix more evenly with the wastewater, thereby improving the wastewater treatment effect.
[0005] To achieve the above objectives, the wastewater dosing device proposed in this utility model is applied to an aeration tank. The wastewater dosing device includes:
[0006] A dosing tank having a dosing chamber and a delivery port communicating with the dosing chamber;
[0007] A dosing pump has a dosing inlet and a dosing outlet, wherein the dosing inlet is connected to the dosing port.
[0008] A drug delivery pipe is connected to the drug delivery port and extends into the aeration tank. The drug delivery pipe is provided with a delivery channel and at least one drug outlet connected to the delivery channel.
[0009] At least one dispensing tube is rotatably fitted onto the dispensing port. The dispensing tube is provided with a dispensing channel and two spray nozzles connecting opposite sides of the dispensing channel. The middle part of the dispensing channel is connected to the dispensing port, and the spraying directions of the two spray nozzles are arranged in opposite directions.
[0010] In an optional embodiment, the delivery tube includes a first tube body and a plurality of sealed mounting bearings. The first tube body is connected to the delivery port and forms the delivery channel and the plurality of delivery ports. A sealed mounting bearing is sleeved on one of the delivery ports, and a delivery tube is rotatably inserted into the bearing hole of the sealed mounting bearing.
[0011] In an optional embodiment, the opening of the medicine outlet is provided with a first stop protrusion, and the middle part of the medicine outlet tube is provided with a second stop protrusion. The first stop protrusion abuts against the lower surface of the sealed mounting bearing, and the second stop protrusion abuts against the upper surface of the sealed mounting bearing.
[0012] In an optional embodiment, the dispensing tube includes a second tube body and two nozzles. The second tube body is rotatably connected to the sealed mounting bearing and has the dispensing channel and two spray nozzles. One of the nozzles is fitted onto one of the spray nozzles.
[0013] In an optional embodiment, one of the nozzle and the sidewall of the spray nozzle is provided with an internal thread, and the other is provided with an external thread, and the nozzle and the second tube are threadedly connected.
[0014] In an optional embodiment, the drug delivery pipe includes a plurality of drug outlets, which are spaced apart along the extension direction of the drug delivery pipe. The wastewater dosing device includes a plurality of drug outlet pipes, and one drug outlet pipe is rotatably fitted onto one of the drug outlets.
[0015] In an optional embodiment, the dosing tank includes a tank body and a plurality of feeding cylinders. The tank body is provided with the dosing chamber and the drug delivery port. The tank body is also provided with a plurality of through holes communicating with the dosing chamber. One of the feeding cylinders is detachably connected to the dosing tank and extends partially into the dosing chamber through the through holes. The feeding cylinder forms a dosing chamber and a plurality of drug dispersing holes communicating with the dosing chamber.
[0016] In an optional embodiment, the feeding cylinder includes a cylinder body and a cylinder cover. The cylinder body is detachably connected to the tank body and extends partially into the dosing chamber. The cylinder cover and the cylinder body enclose the dosing chamber, and a plurality of the dispensing holes are opened in the cylinder body.
[0017] In an optional embodiment, the dosing tank further includes a stirring component, which includes a stirring motor and a stirring rod. The stirring motor is located in the tank body, and the stirring rod is located inside the dosing chamber and is drivenly connected to the output shaft of the stirring motor. The stirring rod is located below the cylinder body.
[0018] This utility model also improves a municipal sewage treatment system, including an aeration tank and a sewage dosing device, wherein the sewage dosing device is the sewage dosing device as described above, and the aeration tank and the sewage dosing device are arranged at intervals.
[0019] This utility model's technical solution employs a dosing tank, which has a dosing chamber and a delivery port connecting to the dosing chamber; a dosing pump has an inlet end and a outlet end, with the inlet end connected to the delivery port; a delivery pipe is connected to the delivery port and extends into the aeration tank, the delivery pipe having a delivery channel and at least one outlet connecting to the delivery channel; at least one outlet pipe, rotatably fitted onto the outlet, the outlet pipe having an outlet channel and two spray nozzles connecting opposite sides of the outlet channel, the middle of the outlet channel being connected to the outlet, and the spraying directions of the two spray nozzles being opposite.
[0020] In this application, the pre-mixed reagent is placed in the dosing chamber. Driven by the dosing pump, the reagent flows from the dosing chamber through the delivery port to the pump side, and is then transported by the pump to the delivery channel of the delivery pipe. The reagent flows from the outlet into the outlet channel and is finally sprayed outward into the aeration tank through two spray nozzles. Since the two spray nozzles are located on opposite sides of the outlet pipe, and the spraying directions are opposite, the outlet pipe can rotate relative to the delivery pipe after the reagent is sprayed outward due to the force of the spray. During the continuous spraying process, the outlet pipe also rotates continuously. This not only increases the spraying range of the reagent in the aeration tank, but also allows the rotating outlet pipe to stir the reagent and wastewater, accelerating their mixing and resulting in a more uniform mixture, thus improving the wastewater treatment effect and efficiency. Furthermore, the rotation of the outlet pipe is powered by the reaction force of the sprayed reagent, eliminating the need for an additional power source or mechanical stirring structure, significantly reducing the energy consumption of the wastewater dosing device. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the municipal sewage treatment system of this utility model;
[0023] Figure 2 for Figure 1 A top view of the municipal wastewater treatment system shown;
[0024] Figure 3 forFigure 2 The municipal wastewater treatment system shown is a cross-sectional view along direction III-III;
[0025] Figure 4 for Figure 3 Enlarged detail view of point A in the middle;
[0026] Figure 5 for Figure 3 Enlarged detail view of point B in the middle;
[0027] Figure 6 for Figure 3 Exploded view of the structure of the central medicine tube.
[0028] Explanation of icon numbers:
[0029]
[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0033] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0034] Reference Figures 1 to 6 This utility model proposes a wastewater dosing device 100.
[0035] In this embodiment of the utility model, the wastewater dosing device 100 is applied to an aeration tank 200. The wastewater dosing device 100 includes: a dosing tank 10, forming a dosing chamber 10a and a dosing port 10b communicating with the dosing chamber 10a; a dosing pump (not shown), having an inlet end and a outlet end, the inlet end being connected to the dosing port 10b; and a dosing pipe 20, connected to the dosing port 10b and extending within the aeration tank 200. 0 is provided with a conveying channel 20a and at least one outlet 20b communicating with the conveying channel 20a; at least one outlet pipe 30, the outlet pipe 30 being rotatably sleeved on the outlet 20b, the outlet pipe 30 being provided with an outlet channel 30a and two spraying ports 30b communicating with opposite sides of the outlet channel 30a, the middle part of the outlet channel 30a being connected to the outlet 20b, and the spraying directions of the two spraying ports 30b being arranged in opposite directions.
[0036] Specifically, in this embodiment, the dosing tank 10 includes a tank body 11, multiple feeding cylinders 12, and a stirring component 13. The tank body 11 can be formed from metal or plastic material, and has an overall cylindrical shell-shaped cavity structure, forming a dosing chamber 10a and a feeding port 10b communicating with the dosing chamber 10a. The tank body 11 also has multiple through holes 10c communicating with the dosing chamber 10a. A feeding cylinder 12 is detachably connected to the dosing tank 10, and partially extends into the dosing chamber 10a through the through holes 10c. The feeding cylinder 12 forms a feeding chamber 12a and multiple dispersing holes 12b communicating with the feeding chamber 12a. The multiple dispersing holes 12b are connected to the dosing chamber 10a. The stirring component 13 includes a stirring motor and a stirring rod. The stirring motor is connected to the tank body 11 by a fixed structure. The stirring rod is located inside the dosing chamber 10a and is driven to the output shaft of the stirring motor through a coupling. The stirring rod is located below the cylinder body 121.
[0037] In use, powdered flocculants, oxidants, and reducing agents can be pre-placed into the feeding chamber 12a, and a reaction solution can be added to the dosing chamber 10a. The reaction solution seeps into the feeding chamber 12a through the dispersing hole, mixing and reacting with the powdered materials therein. Simultaneously, the stirring motor drives the stirring rod to rotate, which in turn drives the reaction solution to rotate, accelerating the mixing of the two. In this application, since the dispersing hole 12b is located in the middle of the dosing chamber 10a after the feeding cylinder 12 is placed in, the situation where the powdered materials do not react fully and settle at the bottom of the dosing chamber 10a can be avoided during mixing with the reaction solution. At the same time, during the reaction process, the driving motor drives the stirring rod to rotate in the reaction chamber, accelerating the mixing reaction of the reaction solution and the powdered materials.
[0038] Furthermore, the feeding cylinder 12 includes a cylinder body 121 and a cylinder cover 122. The diameter of the cylinder body 121 should be slightly larger than the diameter of the through hole 10c, that is, the cylinder body 121 and the through hole 10c are tightly fitted. The cylinder body 121 is detachable from the tank body 11. The cylinder cover 122 and the cylinder body 121 are threaded together and enclose to form a feeding chamber 12a. Multiple dispensing holes 12b are opened in the cylinder body 121. By rotating the cylinder cover 122, the feeding chamber 12a can be opened or closed to facilitate the operator to add the corresponding powdered medicine to the feeding chamber 12a.
[0039] In this application, the prepared reagent is placed in the dosing chamber 10a. Driven by the dosing pump, the reagent flows from the dosing chamber 10a through the delivery port 10b to the side of the dosing pump. The dosing pump then delivers the reagent to the delivery channel 20a of the delivery pipe 20. The reagent flows from the outlet 20b into the outlet channel 30a and is finally sprayed outwards into the aeration tank 200 through the two spray ports 30b. Since the two spray ports 30b are located on opposite sides of the outlet pipe 30 and the spraying directions are opposite, the outlet pipe 30 can rotate relative to the delivery pipe 20 after the reagent is sprayed outwards due to the force of the spray. During the continuous spraying process, the outlet pipe 30 also rotates continuously. In this way, the spraying range of the reagent in the aeration tank 200 is not only larger, but the rotating outlet pipe 30 can also stir the reagent and sewage, accelerate the mixing of the two, and make the mixing of the reagent and sewage more uniform, thereby improving the sewage treatment effect and efficiency. Meanwhile, it can be seen that the power for the rotation of the discharge pipe 30 comes from the reaction force of the sprayed agent. This eliminates the need for an additional power source or mechanical stirring structure, thus greatly reducing the energy consumption of the wastewater dosing device 100.
[0040] Please see again Figure 4 The drug delivery pipe 20 includes a first pipe body 21 and multiple sealed bearings 22. The first pipe body 21 is connected to the drug delivery port 10b and forms a delivery channel 20a and multiple drug outlets 20b. A sealed bearing 22 is fitted onto a drug outlet 20b, and a drug outlet pipe 30 is rotatably inserted into the bearing hole of the sealed bearing 22. In this application, by setting a sealed bearing 22 between the first pipe body 21 and the drug outlet pipe 30, the rotational friction between the two can be reduced, allowing the stirring rotation speed of the drug outlet pipe 30 to be faster, the mixing reaction of sewage and drug to be more complete, and the reaction speed to be faster.
[0041] Furthermore, the opening of the medicine outlet 20b is provided with a first stop protrusion 23, and the middle part of the medicine outlet tube 30 is provided with a second stop protrusion 33. The first stop protrusion 23 abuts against the lower surface of the sealed mounting bearing 22, and the second stop protrusion 33 abuts against the upper surface of the sealed mounting bearing 22. In this application, the first stop protrusion 23 and the second stop protrusion 33 cooperate to clamp the sealed mounting bearing 22 on opposite sides, so that the installation of the sealed mounting bearing 22 is more stable, and the situation of the medicine outlet tube 30 becoming loose from the first tube body 21 during rotation can be avoided.
[0042] In this embodiment, the dispensing tube 30 includes a second tube body 31 and two nozzles 32. The second tube body 31 is made of sheet metal and has an overall "T" shape. The middle part of the second tube body 31 is rotatably connected to the sealed mounting bearing 22 and has a dispensing channel 30a and two spray nozzles 30b. The inner wall of the spray nozzles 30b is provided with internal threads, and the nozzles 32 are provided with external threads. The two nozzles 32 are respectively threaded to opposite sides of the second tube body 31. In this application, the diameter of the nozzle 32 is smaller than the diameter of the spray nozzles 30b, which can increase the flow rate of the agent and the reaction force on the second tube body 31, making the rotation speed of the second tube body 31 faster. Furthermore, the two nozzles 32 are detachably connected to the second tube body 31 by threads, which facilitates disassembly and replacement.
[0043] In this application, the drug delivery pipe 20 includes multiple drug outlets 20b, which are spaced apart along the extension direction of the drug delivery pipe 20. The wastewater dosing device 100 includes multiple drug outlet pipes 30, with each drug outlet pipe 30 rotatably fitted onto a drug outlet 20b. By providing multiple drug outlet pipes 30, the drug delivery range is further expanded, and the simultaneous rotation of multiple drug outlet pipes 30 further improves the mixing and reaction rate of wastewater and chemicals.
[0044] This utility model also proposes a municipal sewage treatment system 1, which includes an aeration tank 200 and a sewage dosing device 100. The specific structure of the sewage dosing device 100 is as described in the above embodiments. Since this municipal sewage treatment system 1 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The aeration tank 200 can be made of metal or cement. After the aeration tank 200 is installed, the sewage dosing device 100 is spaced apart on one side of the aeration tank 200 to continuously add chemicals to the sewage in the aeration tank 200.
[0045] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A wastewater dosing device, applied to an aeration tank, characterized in that, The wastewater dosing device includes: A dosing tank having a dosing chamber and a delivery port communicating with the dosing chamber; A dosing pump has a dosing inlet and a dosing outlet, wherein the dosing inlet is connected to the dosing port. A drug delivery pipe is connected to the drug delivery port and extends into the aeration tank. The drug delivery pipe is provided with a delivery channel and at least one drug outlet connected to the delivery channel. At least one dispensing tube is rotatably fitted onto the dispensing port. The dispensing tube is provided with a dispensing channel and two spray nozzles connecting opposite sides of the dispensing channel. The middle part of the dispensing channel is connected to the dispensing port, and the spraying directions of the two spray nozzles are arranged in opposite directions.
2. The wastewater dosing device as described in claim 1, characterized in that, The drug delivery tube includes a first tube body and multiple sealed mounting bearings. The first tube body is connected to the drug delivery port and forms the delivery channel and multiple drug outlets. A sealed mounting bearing is sleeved on one of the drug outlets, and a drug outlet tube is rotatably inserted into the bearing hole of the sealed mounting bearing.
3. The wastewater dosing device as described in claim 2, characterized in that, The opening of the medicine outlet is provided with a first stop protrusion, and the middle part of the medicine outlet tube is provided with a second stop protrusion. The first stop protrusion abuts against the lower surface of the sealed mounting bearing, and the second stop protrusion abuts against the upper surface of the sealed mounting bearing.
4. The wastewater dosing device as described in claim 3, characterized in that, The dispensing tube includes a second tube body and two nozzles. The second tube body is rotatably connected to the sealed mounting bearing and has the dispensing channel and two spray nozzles. One nozzle is fitted onto one spray nozzle.
5. The wastewater dosing device as described in claim 4, characterized in that, One of the nozzle and the sidewall of the spray nozzle is provided with an internal thread, and the other is provided with an external thread. The nozzle and the second tube are threadedly connected.
6. The wastewater dosing device according to any one of claims 1 to 5, characterized in that, The drug delivery pipe includes multiple drug outlets, which are spaced apart along the extension direction of the drug delivery pipe. The sewage dosing device includes multiple drug outlet pipes, and one drug outlet pipe is rotatably fitted onto one of the drug outlets.
7. The wastewater dosing device according to any one of claims 1 to 5, characterized in that, The dosing tank includes a tank body and multiple feeding cylinders. The tank body is provided with a dosing chamber and a drug delivery port. The tank body is also provided with multiple through holes communicating with the dosing chamber. One of the feeding cylinders is detachably connected to the dosing tank and extends into the dosing chamber through the through holes. The feeding cylinder forms a dosing chamber and multiple drug dispersing holes communicating with the dosing chamber.
8. The wastewater dosing device as described in claim 7, characterized in that, The feeding cylinder includes a cylinder body and a cylinder cover. The cylinder body is detachably connected to the tank body and extends partially into the dosing chamber. The cylinder cover and the cylinder body enclose the dosing chamber, and a plurality of the dispensing holes are opened in the cylinder body.
9. The wastewater dosing device as described in claim 8, characterized in that, The dosing tank also includes a stirring component, which includes a stirring motor and a stirring rod. The stirring motor is located in the tank body, and the stirring rod is located inside the dosing chamber and is driven to the output shaft of the stirring motor. The stirring rod is located below the cylinder body.
10. A municipal wastewater treatment system, characterized in that, It includes an aeration tank and a wastewater dosing device, wherein the wastewater dosing device is the wastewater dosing device as described in any one of claims 1 to 9, and the aeration tank and the wastewater dosing device are arranged at intervals.