Dosing device for village and town domestic sewage treatment equipment

Abstract

The utility model relates to the technical field of sewage treatment, and particularly discloses a dosing device for village and town domestic sewage treatment equipment, which comprises a treatment tank, the upper end of the treatment tank is provided with a feed port in a penetrating manner, the upper end of the treatment tank is fixedly connected with an L-shaped plate, and the upper side of the L-shaped plate is provided with a medicine storage tank. The lower end of the medicine storage tank communicates with a medicine discharging pipe penetrating through the L-shaped plate, the medicine discharging pipe is provided with an electromagnetic valve, a weighing mechanism is arranged below the medicine storage tank, and the weighing mechanism comprises a receiving hopper located below the medicine storage tank; when a set value is reached, the electromagnetic valve is closed to complete accurate metering, manual weighing and transferring are not needed in the whole process, intelligent closed-loop control of medicament feeding is achieved, operation simplicity is remarkably improved, medicaments are evenly distributed into cavities formed by the adjacent material distribution plates from the receiving hopper, and continuous and gentle release is achieved along with rotation of the rotating shaft. The purposes of avoiding medicament waste and reaction efficiency reduction caused by overhigh local concentration and improving the sewage treatment effect are achieved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and specifically discloses a dosing device for rural domestic wastewater treatment equipment. Background Technology

[0002] With my country's rapid economic development and rising living standards, the discharge of domestic sewage in rural areas is increasing year by year. Sewage treatment, a crucial link in ensuring water quality safety, involves purifying sewage through physical, chemical, or biological methods to meet discharge standards or reuse requirements. This technology is widely used in construction, agriculture, environmental protection, and healthcare, and is closely related to people's livelihoods and the ecological environment. In rural sewage treatment, a typical process involves adding solid chemicals to the treatment system using dosing equipment, utilizing the reaction between the chemicals and pollutants to remove impurities and purify the water.

[0003] However, existing wastewater treatment dosing technologies have significant shortcomings: Firstly, traditional dosing devices lack weight detection capabilities, requiring manual weighing of the chemicals beforehand. If the dosage is insufficient or excessive, repeated dosing and unloading operations are necessary, and the weighed chemicals must be manually transferred to the treatment tank, making the process cumbersome. Secondly, the dosing process often employs a single-dose method, leading to localized high-concentration areas of the chemicals within the treatment tank. This results in uneven reaction rates between the chemicals and wastewater, and may even lead to chemical waste or side reactions due to localized overconcentration. Therefore, a new dosing device for rural domestic wastewater treatment equipment is needed to address these issues. Utility Model Content

[0004] This utility model proposes a dosing device for rural domestic sewage treatment equipment, which improves the simplicity of operation during dosing; avoids waste of reagents and reduced reaction efficiency caused by excessively high local concentrations, and improves the sewage treatment effect.

[0005] This utility model is implemented as follows: a dosing device for rural domestic sewage treatment equipment includes a treatment tank, an inlet is provided through the upper end of the treatment tank, an L-shaped plate is fixedly connected to the upper end of the treatment tank, a storage tank is provided on the upper side of the L-shaped plate, and a dosing pipe is connected to the lower end of the storage tank through the L-shaped plate. The dosing pipe is equipped with a solenoid valve.

[0006] A weighing mechanism is provided below the medicine storage tank. The weighing mechanism includes a receiving hopper located below the medicine storage tank. A discharge shell extending into the inlet is installed at the lower end of the receiving hopper. A pressure plate is fixedly connected to the right end of the receiving hopper. A support platform is fixedly connected to the upper end of the processing tank. A pressure sensor that abuts against the lower end of the pressure plate is installed at the upper end of the support platform. A controller is installed at the upper end of the processing tank.

[0007] The material feeding shell is rotatably connected to a rotating shaft inside. Multiple evenly distributed material distribution plates are fixedly connected to the outer wall of the rotating shaft. A first drive motor with its output end fixedly connected to the rotating shaft is installed on the outer wall of the material feeding shell.

[0008] As a preferred embodiment of the dosing device for rural domestic sewage treatment equipment of this utility model, a U-shaped plate is fixedly connected to the upper end of the pressure plate, and a plurality of limiting rods fixedly connected to an L-shaped plate are slidably connected through the outer wall of the U-shaped plate, and two baffles are fixedly connected to the outer walls of the plurality of limiting rods.

[0009] As a preferred embodiment of the dosing device for rural domestic sewage treatment equipment of this utility model, a stirring shaft is rotatably connected to the bottom end of the inner wall of the treatment tank, a plurality of evenly distributed stirring blades are installed on the outer wall of the stirring shaft, and a second drive motor with its output end fixedly connected to the stirring shaft is installed at the lower end of the treatment tank.

[0010] As a preferred embodiment of the dosing device for rural domestic sewage treatment equipment of this utility model, the upper end of the receiving hopper is provided with a through groove, and the dosing pipe passes through the through groove and extends into the interior of the receiving hopper.

[0011] As a preferred embodiment of the dosing device for rural domestic sewage treatment equipment of this utility model, two reinforcing rods are fixedly connected between the outer wall of the storage tank and the outer wall of the L-shaped plate.

[0012] As a preferred embodiment of the dosing device for rural domestic sewage treatment equipment of this utility model, the upper end of the storage tank is fixedly connected to a feeding port, and the outer wall of the feeding port is threadedly connected to a threaded cap.

[0013] As a preferred embodiment of the dosing device for rural domestic sewage treatment equipment of this utility model, the outer wall of the treatment tank is connected to a drain outlet with a valve, and a water supply pipe is fixedly connected to the upper end of the treatment tank.

[0014] The beneficial effects of this utility model are:

[0015] 1. When adding medicine, the controller opens the solenoid valve according to the preset amount. The medicine in the storage tank falls into the receiving hopper through the medicine pipe. The pressure sensor detects the weight of the medicine in the hopper in real time. When the set value is reached, the solenoid valve is closed to complete the accurate metering. No manual weighing and transfer are required throughout the process. It realizes intelligent closed-loop control of medicine feeding and significantly improves the simplicity of operation.

[0016] 2. The progressive dosing mechanism adopts a uniformly rotating distribution plate. By adjusting the speed of the drive motor, the rotation speed of the distribution plate is controlled, so that the agent is evenly distributed from the receiving hopper into the chamber formed by the adjacent distribution plates. The agent is continuously and slowly released as the shaft rotates, so as to avoid the waste of agent and the decrease in reaction efficiency caused by excessive local concentration, thereby improving the sewage treatment effect. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a front sectional view of the dosing device for rural domestic sewage treatment equipment according to the present invention;

[0019] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a partial left-side cross-sectional view of the present invention;

[0021] Figure 4 This is a partial structural diagram of the present invention.

[0022] The markings in the diagram are: 1. Processing tank; 2. Feed inlet; 3. L-shaped plate; 4. Medicine storage tank; 5. Medicine dispensing pipe; 6. Solenoid valve; 7. Receiving hopper; 8. Through groove; 9. Discharge shell; 10. Rotating shaft; 11. Distributing plate; 12. First drive motor; 13. U-shaped plate; 14. Limiting rod; 15. Baffle; 16. Pressure sensor; 17. Support platform; 18. Feeding port; 19. Stirring shaft; 20. Second drive motor; 21. Pressure plate; 22. Controller. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0024] Please see Figure 1-4 A dosing device for rural domestic sewage treatment equipment includes a treatment tank 1, an inlet 2 through which the upper end of the treatment tank 1 is provided, an L-shaped plate 3 fixedly connected to the upper end of the treatment tank 1, a storage tank 4 provided on the upper side of the L-shaped plate 3, and a dosing pipe 5 through the L-shaped plate 3 connected to the lower end of the storage tank 4. The dosing pipe 5 is equipped with a solenoid valve 6.

[0025] A weighing mechanism is provided below the medicine storage tank 4. The weighing mechanism includes a receiving hopper 7 located below the medicine storage tank 4. A discharge shell 9 extending into the inlet 2 is installed at the lower end of the receiving hopper 7. A pressure plate 21 is fixedly connected to the right end of the receiving hopper 7. A support platform 17 is fixedly connected to the upper end of the processing tank 1. A pressure sensor 16 that abuts against the lower end of the pressure plate 21 is installed at the upper end of the support platform 17. A controller 22 is installed at the upper end of the processing tank 1.

[0026] The inside of the feeding shell 9 is rotatably connected to a rotating shaft 10. Multiple evenly distributed material distribution plates 11 are fixedly connected to the outer wall of the rotating shaft 10. The outer wall of the feeding shell 9 is equipped with a first drive motor 12 whose output end is fixedly connected to the rotating shaft 10.

[0027] In this embodiment: In the initial state, the medicine storage tank 4 stores solid medicine, the receiving hopper 7 is located below the medicine storage tank 4, the medicine discharge pipe 5 passes through the through groove 8 of the receiving hopper 7, the solenoid valve 6 is in the closed state, the pressure sensor 16 is in contact with the lower end of the pressure plate 21, and multiple material distribution plates 11 are evenly distributed on the rotating shaft 10. The material distribution plates 11 are attached to the inner wall of the material discharge shell 9. The initial position is a closed state to prevent solid materials from falling.

[0028] When in use, after receiving the preset dosage instruction, the controller 22 opens the solenoid valve 6, and the medicine in the storage tank 4 falls into the receiving hopper 7 through the dispensing pipe 5. The receiving hopper 7 presses down on the pressure plate 21 due to the weight of the medicine. The pressure sensor 16 detects the pressure change in real time and feeds it back to the controller 22.

[0029] When the weight detected by the pressure sensor 16 reaches the preset value, the controller 22 immediately closes the solenoid valve 6 to stop the dispensing of medicine. At this time, the weight of the medicine in the receiving hopper 7 is the required dose, eliminating the need for manual weighing and transfer, which significantly improves the simplicity of operation.

[0030] Then start the first drive motor 12 to drive the rotating shaft 10 to rotate at a constant speed. The distribution plate 11 rotates accordingly, and the medicine falls from the receiving hopper 7 into the space formed by the two adjacent distribution plates 11. As the distribution plate 11 rotates, it is gradually released into the treatment tank 1 to achieve continuous and uniform drug addition.

[0031] By controlling the rotation speed of the first drive motor 12, the rotation speed of the distribution plate 11 can be adjusted, thereby controlling the dosing rate. In this way, the waste of reagents and the decrease in reaction efficiency caused by excessive local concentration can be avoided, so as to improve the sewage treatment effect.

[0032] As a technical optimization of this utility model, a U-shaped plate 13 is fixedly connected to the upper end of the pressure plate 21. A plurality of limiting rods 14 fixedly connected to the L-shaped plate 3 are slidably connected through the outer wall of the U-shaped plate 13. Two baffles 15 are fixedly connected to the outer walls of the plurality of limiting rods 14.

[0033] In this embodiment: when the container 7 is carrying the medicine, the U-shaped plate 13 slides down along the limiting rod 14 to ensure that the pressure plate 21 presses down vertically on the pressure sensor 16, avoiding weighing deviation caused by tilting. The baffles 15 at both ends of the limiting rod 14 limit the vertical displacement range of the U-shaped plate 13.

[0034] As a technical optimization of this utility model, a stirring shaft 19 is rotatably connected to the bottom of the inner wall of the processing tank 1, and a plurality of evenly distributed stirring blades are installed on the outer wall of the stirring shaft 19. A second drive motor 20 with its output end fixedly connected to the stirring shaft 19 is installed at the lower end of the processing tank 1.

[0035] In this embodiment: the second drive motor 20 at the bottom of the treatment tank 1 drives the stirring shaft 19 and stirring blades to rotate, thereby achieving the mixing of the reagent and the sewage.

[0036] As a technical optimization of this utility model, the upper end of the receiving bucket 7 is provided with a through groove 8, and the medicine tube 5 passes through the through groove 8 and extends into the interior of the receiving bucket 7.

[0037] In this embodiment: the through groove 8 at the upper end of the receiving hopper 7 allows the medicine tube 5 to pass through, ensuring that the medicine falls accurately into the receiving hopper 7.

[0038] As a technical optimization of this utility model, two reinforcing rods are fixedly connected between the outer wall of the medicine storage tank 4 and the outer wall of the L-shaped plate 3.

[0039] In this embodiment, the medicine storage tank 4 is connected to the L-shaped plate 3 by two reinforcing rods to enhance the stability of the medicine storage tank 4.

[0040] As a technical optimization of this utility model, the upper end of the medicine storage tank 4 is fixedly connected to a feeding port 18, and the outer wall of the feeding port 18 is threadedly connected to a threaded cover.

[0041] In this embodiment: the feeding port 18 at the top of the medicine storage tank 4 is used to replenish the medicine, and the threaded cap achieves a seal.

[0042] As a technical optimization of this utility model, the outer wall of the treatment tank 1 is connected to a drain outlet with a valve, and a water supply pipe is fixedly connected to the upper end of the treatment tank 1.

[0043] In this embodiment: by setting a drain outlet, the treated water can be discharged easily, and by setting a water inlet pipe, water can be added into the treatment tank 1 easily.

[0044] The working principle and usage process of this utility model are as follows: In the initial state, the medicine storage tank 4 is fixed to the L-shaped plate 3 by the reinforcing rod. The medicine storage tank 4 stores solid medicine. The receiving hopper 7 is located below the medicine storage tank 4. The medicine discharge pipe 5 passes through the through groove 8 of the receiving hopper 7. The solenoid valve 6 is in the closed state. The pressure sensor 16 is in contact with the lower end of the pressure plate 21. The U-shaped plate 13 limits the vertical displacement range of the receiving hopper 7 by the limiting rod 14 and the baffle 15. Multiple material distribution plates 11 are evenly distributed on the rotating shaft 10. The material distribution plates 11 are attached to the inner wall of the discharge shell 9. The initial position is a closed state to prevent solid materials from falling.

[0045] When in use, after receiving the preset dosage instruction, the controller 22 opens the solenoid valve 6, and the medicine in the storage tank 4 falls into the receiving hopper 7 through the dispensing pipe 5. The receiving hopper 7 presses down on the pressure plate 21 due to the weight of the medicine. The pressure sensor 16 detects the pressure change in real time and feeds it back to the controller 22.

[0046] When the weight detected by the pressure sensor 16 reaches the preset value, the controller 22 immediately closes the solenoid valve 6 to stop the dispensing of medicine. At this time, the weight of the medicine in the receiving hopper 7 is the required dose, eliminating the need for manual weighing and transfer, which significantly improves the simplicity of operation.

[0047] Then start the first drive motor 12 to drive the rotating shaft 10 to rotate at a constant speed. The distribution plate 11 rotates accordingly, and the medicine falls from the receiving hopper 7 into the space formed by the two adjacent distribution plates 11. As the distribution plate 11 rotates, it is gradually released into the treatment tank 1 to achieve continuous and uniform drug addition.

[0048] By controlling the rotation speed of the first drive motor 12, the rotation speed of the distribution plate 11 can be adjusted, thereby controlling the dosing rate. In this way, the waste of reagents and the decrease in reaction efficiency caused by excessive local concentration can be avoided, so as to improve the sewage treatment effect.

[0049] When the dispensing plate 11 starts to rotate and add chemicals, the second drive motor 20 is started, which drives the stirring shaft 19 and stirring blades in the treatment tank 1 to rotate. The stirring blades quickly mix the chemicals falling into the treatment tank 1 with the sewage to form a uniform reaction system. Since the chemicals are added at a uniform speed and in a dispersed manner, it is easier to achieve a uniform concentration throughout the entire process during stirring, thereby improving the reaction efficiency.

[0050] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A dosing device for rural domestic sewage treatment equipment, comprising a treatment tank (1), wherein a feed inlet (2) is provided through the upper end of the treatment tank (1), characterized in that: The upper end of the processing tank (1) is fixedly connected to an L-shaped plate (3), and a medicine storage tank (4) is provided on the upper side of the L-shaped plate (3). The lower end of the medicine storage tank (4) is connected to a medicine discharge pipe (5) that passes through the L-shaped plate (3). The medicine discharge pipe (5) is equipped with a solenoid valve (6). A weighing mechanism is provided below the medicine storage tank (4). The weighing mechanism includes a receiving hopper (7) located below the medicine storage tank (4). A discharge shell (9) extending into the feed inlet (2) is installed at the lower end of the receiving hopper (7). A pressure plate (21) is fixedly connected to the right end of the receiving hopper (7). A support platform (17) is fixedly connected to the upper end of the processing tank (1). A pressure sensor (16) that abuts against the lower end of the pressure plate (21) is installed at the upper end of the support platform (17). A controller (22) is installed at the upper end of the processing tank (1). The material feeding shell (9) is rotatably connected to a rotating shaft (10), and a plurality of evenly distributed material distribution plates (11) are fixedly connected to the outer wall of the rotating shaft (10). The outer wall of the material feeding shell (9) is equipped with a first drive motor (12) whose output end is fixedly connected to the rotating shaft (10).

2. The dosing device for rural domestic sewage treatment equipment according to claim 1, characterized in that: The upper end of the pressure plate (21) is fixedly connected to a U-shaped plate (13), and the outer wall of the U-shaped plate (13) is slidably connected to a plurality of limiting rods (14) fixedly connected to the L-shaped plate (3). The outer walls of the plurality of limiting rods (14) are fixedly connected to two baffles (15).

3. The dosing device for rural domestic sewage treatment equipment according to claim 1, characterized in that: The bottom of the inner wall of the processing tank (1) is rotatably connected to a stirring shaft (19). The outer wall of the stirring shaft (19) is equipped with multiple uniformly distributed stirring blades. The lower end of the processing tank (1) is equipped with a second drive motor (20) whose output end is fixedly connected to the stirring shaft (19).

4. The dosing device for rural domestic sewage treatment equipment according to claim 1, characterized in that: The upper end of the receiving hopper (7) is provided with a through groove (8), and the medicine dispensing tube (5) passes through the through groove (8) and extends into the interior of the receiving hopper (7).

5. A dosing device for rural domestic sewage treatment equipment according to claim 1, characterized in that: Two reinforcing rods are fixedly connected between the outer wall of the medicine storage tank (4) and the outer wall of the L-shaped plate (3).

6. A dosing device for rural domestic sewage treatment equipment according to claim 1, characterized in that: The upper end of the medicine storage tank (4) is fixedly connected to a feeding port (18), and the outer wall of the feeding port (18) is threadedly connected to a threaded cap.

7. A dosing device for rural domestic sewage treatment equipment according to claim 1, characterized in that: The outer wall of the treatment tank (1) is connected to a drain outlet with a valve, and a water supply pipe is fixedly connected to the upper end of the treatment tank (1).

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