An automatic dosing control device for chemical phosphorus removal in wastewater treatment

Abstract

This utility model discloses an automatic dosing control device for chemical phosphorus removal in wastewater treatment, belonging to the field of wastewater treatment technology. It includes a medicine tank, with a mounting ring on the lower surface of the tank and a support leg at the lower end of the mounting ring. A connecting rod is located at the upper end of the tank, and a mixing tank is located at the upper end of the connecting rod. A controller is located on the side of the tank, and a quantitative dosing mechanism is located at the upper end of the mixing tank. This utility model, by incorporating a quantitative dosing mechanism, utilizes a weighing component and an adjusting component to achieve precise weighing and dosing of the medicine. A weighing sensor monitors the medicine weight in real time, and a motor drives a telescopic rod to adjust the position of the weighing plate, ensuring that the dosing amount accurately matches the phosphorus content of the wastewater, avoiding waste or insufficient dosing, and significantly improving phosphorus removal efficiency and operational economy. This utility model also incorporates a wastewater mixing mechanism, employing a multi-stage mixing component to achieve efficient mixing of wastewater and medicine.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically relating to an automatic dosing control device for chemical phosphorus removal in wastewater treatment. Background Technology

[0002] Chemical phosphorus removal is a commonly used method in wastewater treatment. It involves adding chemical agents (such as iron salts and aluminum salts) to the wastewater to react with phosphate ions and form precipitates, thereby removing phosphorus. This device is mainly used to automatically control the dosage and mixing effect of the agents during wastewater treatment to ensure the stability and high efficiency of phosphorus removal. It is widely used in municipal wastewater treatment plants, industrial wastewater treatment, and other fields.

[0003] However, existing chemical phosphorus removal devices for wastewater treatment have some shortcomings in practical applications. First, most traditional devices lack precise quantitative dosing capabilities, and the dosage of chemicals mainly relies on manual experience or simple flow control. It is difficult to make precise adjustments based on the actual phosphorus content and water quality changes in the wastewater, which can easily lead to insufficient or excessive dosage of chemicals, affecting the phosphorus removal effect and increasing operating costs. Second, the existing mixing structure between chemicals and wastewater has low stirring efficiency, which cannot fully guarantee the rapid and uniform mixing of chemicals and wastewater, resulting in incomplete chemical reaction and making it difficult to further improve phosphorus removal efficiency. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides an automatic dosing control device for chemical phosphorus removal in wastewater treatment, which features controllable dosage and improved mixing of chemicals with wastewater.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic dosing control device for chemical phosphorus removal in wastewater treatment, comprising a medicine tank, an installation ring on the lower surface of the medicine tank, a support leg at the lower end of the installation ring, a connecting rod at the upper end of the medicine tank, a mixing box at the upper end of the connecting rod, a controller on the side of the medicine tank, a quantitative dosing mechanism for the reagent at the upper end of the mixing box, and a wastewater stirring and mixing mechanism inside the medicine tank.

[0006] Preferably, the drug quantitative feeding mechanism includes a feeding hopper, a feeding pipe, a weighing pipe, a mixing component, a weighing component, a discharging pipe, and a solenoid valve. Three sets of weighing pipes are provided at the upper end of the mixing box, a weighing component is provided inside the weighing pipe, a feeding pipe is provided at the upper end of the weighing pipe, a feeding hopper is provided at the upper end of the feeding pipe, a mixing component is provided inside the mixing box, a discharging pipe is provided at the lower center of the mixing box, and a solenoid valve is provided on the side of the discharging pipe.

[0007] Preferably, the weighing assembly includes a mounting plate, ear plates, an adjustment component, a weighing sensor, a connecting plate, and a weighing plate. The mounting plate has two sets of ear plates on its side, an adjustment component on the side of one set of ear plates, a connecting plate on the other end of the adjustment component, and a weighing plate on the side of the connecting plate. The mounting plate has a mounting groove for the weighing plate, and the weighing plate has a weighing sensor inside.

[0008] Preferably, the weighing assembly further includes an inner rod and an outer rod, with an outer rod provided on the side of another set of ear plates and an inner rod provided at the other end of the outer rod.

[0009] Preferably, the adjustment assembly includes a motor, a screw, a telescopic rod, and a sleeve rod. A motor is provided on one side of a set of ear plates, and a sleeve rod is provided on the other side of the set of ear plates. A screw is provided at the output end of the motor, and a telescopic rod is threadedly connected to the surface of the screw.

[0010] Preferably, the adjustment assembly further includes strip-shaped protrusions and strip-shaped grooves, the inner wall of the sleeve rod is provided with strip-shaped protrusions, and the side of the telescopic rod is provided with strip-shaped grooves corresponding to the strip-shaped protrusions.

[0011] Preferably, the mixing assembly includes a second motor, a long mixing rod, a short mixing rod, and a rotating shaft. The second motor is located at the center of the upper end of the mixing box, and the rotating shaft is located at the output end of the second motor. The long mixing rod is located on the surface of the rotating shaft, and the short mixing rod is located on the surface of the rotating shaft near the long mixing rod.

[0012] Preferably, the wastewater mixing mechanism includes a discharge pipe, a second solenoid valve, a third motor, a mixing assembly, and a rotating box. The discharge pipe is located on the lower side of the medicine tank, and the second solenoid valve is located on the side of the discharge pipe. The third motor is located at the center of the lower end of the medicine tank, and the rotating box is located inside the medicine tank at the output end of the third motor. The mixing assembly is located inside the rotating box.

[0013] Preferably, the wastewater mixing mechanism further includes an annular slide rail and a T-shaped slider. A T-shaped slider is provided on the lower side of the rotating box, and an annular slide rail corresponding to the T-shaped slider is provided inside the medicine box.

[0014] Preferably, the stirring assembly includes a motor, a drive gear, a driven gear, a stirring shaft, and a stirring rod. The motor is installed inside the rotating box, and the output end of the motor is equipped with a drive gear. The driven gear is meshed with the side of the drive gear, and the upper end of the driven gear is equipped with a stirring shaft. The upper surface of the stirring shaft is equipped with a stirring rod, and the stirring shaft and the rotating box are rotatably connected by bearings.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model sets up a quantitative dosing mechanism for the reagent, and uses a weighing component and an adjustment component to achieve accurate weighing and dosing of the reagent. The weighing sensor monitors the weight of the reagent in real time, and the motor drives the telescopic rod to adjust the position of the weighing plate, ensuring that the dosing amount is accurately matched with the phosphorus content of the wastewater, avoiding waste or insufficient reagent, and significantly improving the phosphorus removal effect and operating economy.

[0017] 2. This utility model incorporates a wastewater mixing mechanism, employing a multi-stage mixing assembly to achieve efficient mixing of wastewater and chemicals. The motor drives the active gear to rotate, which in turn drives the driven gear. The stirring rod on the stirring shaft thoroughly mixes the wastewater and chemicals. Simultaneously, the rotating box rotates within the annular slide rail, further enhancing the mixing effect and ensuring a rapid and uniform reaction between the chemicals and wastewater, thereby significantly improving phosphorus removal efficiency. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a perspective view of the pharmaceutical quantitative dispensing mechanism of this utility model;

[0020] Figure 3 This is a perspective view of the baffle opening assembly of this utility model;

[0021] Figure 4 This is a three-dimensional sectional view of the hybrid component of this utility model;

[0022] Figure 5 This is a three-dimensional sectional view of the wastewater mixing mechanism of this utility model;

[0023] Figure 6 This is a three-dimensional sectional view of the stirring assembly of this utility model;

[0024] In the diagram: 1. Medicine tank; 2. Mounting ring; 3. Support leg; 4. Wastewater mixing mechanism; 41. Circular slide rail; 42. Discharge pipe; 43. Solenoid valve II; 44. Motor III; 45. Mixing assembly; 451. Motor IV; 452. Drive gear; 453. Driven gear; 454. Mixing shaft; 455. Mixing rod; 46. T-shaped slider; 47. Rotating box; 5. Controller; 6. Connecting rod; 7. Mixing box; 8. Drug metering and dispensing mechanism; 81. Feed hopper; 82. Feed pipe; 83. Weighing pipe; 84. Mixing assembly; 841, Motor II; 842, Long mixing rod; 843, Short mixing rod; 844, Rotating shaft; 85, Weighing assembly; 851, Inner rod; 852, Outer rod; 853, Mounting plate; 854, Ear plate; 855, Adjusting assembly; 8551, Motor I; 8552, Screw; 8553, Telescopic rod; 8554, Sleeve rod; 8555, Strip-shaped protrusion; 8556, Strip-shaped groove; 856, Weighing sensor; 857, Connecting plate; 858, Weighing plate; 86, Feeding pipe; 87, Solenoid valve I. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] Please see Figure 1-6 The present invention provides the following technical solution: an automatic dosing control device for chemical phosphorus removal in wastewater treatment, comprising a medicine tank 1, an mounting ring 2 provided on the lower surface of the medicine tank 1, a support leg 3 provided at the lower end of the mounting ring 2, a connecting rod 6 provided at the upper end of the medicine tank 1, a mixing box 7 provided at the upper end of the connecting rod 6, a controller 5 provided on the side of the medicine tank 1, a quantitative dosing mechanism 8 provided at the upper end of the mixing box 7, and a wastewater stirring and mixing mechanism 4 provided inside the medicine tank 1.

[0028] Specifically, the drug dispensing mechanism 8 includes a feeding hopper 81, a feeding pipe 82, a weighing pipe 83, a mixing component 84, a weighing component 85, a discharge pipe 86, and a solenoid valve 87. Three sets of weighing pipes 83 are installed at the upper end of the mixing chamber 7. Weighing components 85 are installed inside the weighing pipes 83. The feeding pipe 82 is installed at the upper end of the weighing pipes 83, and a feeding hopper 81 is installed at the upper end of the feeding pipe 82. The mixing component 84 is installed inside the mixing chamber 7. A discharge pipe 86 is located at the center of the lower end of the mixing chamber 7, and a solenoid valve 87 is installed on the side of the discharge pipe 86.

[0029] By adopting the above technical solution, precise quantitative addition of the reagent is achieved. The reagent dosage can be automatically adjusted according to the phosphorus content and water quality changes in the wastewater, avoiding waste and insufficient addition of the reagent and improving the phosphorus removal effect.

[0030] Specifically, the weighing assembly 85 includes a mounting plate 853, ear plates 854, an adjusting assembly 855, a load cell 856, a connecting plate 857, and a weighing plate 858. Two sets of ear plates 854 are provided on the side of the mounting plate 853. An adjusting assembly 855 is located on the side of one set of ear plates 854. A connecting plate 857 is located at the other end of the adjusting assembly 855. The weighing plate 858 is located on the side of the connecting plate 857. A mounting groove corresponding to the weighing plate 858 is formed inside the mounting plate 853. The weighing sensor 856 is located inside the weighing plate 858.

[0031] By adopting the above technical solution, the weighing sensor 856 can monitor the weight of the agent in real time, and the adjustment component 855 can adjust the position of the weighing plate 858 as needed to ensure the accuracy of agent dosing.

[0032] Specifically, the weighing assembly 85 also includes an inner rod 851 and an outer rod 852. An outer rod 852 is located on the side of another set of lugs 854, and an inner rod 851 is located at the other end of the outer rod 852.

[0033] By adopting the above technical solution, the telescopic structure design of the inner rod 851 and the outer rod 852 further improves the flexibility and adjustment accuracy of the weighing component 85.

[0034] Specifically, the adjusting assembly 855 includes a motor 8551, a screw 8552, a telescopic rod 8553, and a sleeve rod 8554. The motor 8551 is located on one side of a set of ear plates 854, and the sleeve rod 8554 is located on the other side. The screw 8552 is located at the output end of the motor 8551, and the telescopic rod 8553 is threaded onto the surface of the screw 8552.

[0035] By adopting the above technical solution, the motor 8551 drives the screw 8552 to rotate, and the telescopic rod 8553 moves on the screw 8552, thereby realizing the precise adjustment of the position of the symmetrical counterweight 858.

[0036] Specifically, the adjusting component 855 also includes a strip-shaped protrusion 8555 and a strip-shaped groove 8556. The inner wall of the sleeve rod 8554 is provided with a strip-shaped protrusion 8555, and the side of the telescopic rod 8553 is provided with a strip-shaped groove 8556 corresponding to the strip-shaped protrusion 8555.

[0037] By adopting the above technical solution, the cooperation between the strip protrusion 8555 and the strip groove 8556 restricts the rotation of the telescopic rod 8553, making it move only along the axial direction, thereby improving the stability and accuracy of the adjustment.

[0038] Specifically, the mixing assembly 84 includes a second motor 841, a long mixing rod 842, a short mixing rod 843, and a rotating shaft 844. The second motor 841 is located at the upper center of the mixing box 7. The rotating shaft 844 is located at the output end of the second motor 841. The long mixing rod 842 is located on the surface of the rotating shaft 844, and the short mixing rod 843 is located on the surface of the rotating shaft 844 near the long mixing rod 842.

[0039] By adopting the above technical solution, the combined design of the long mixing rod 842 and the short mixing rod 843 can fully stir and mix the agent, ensuring the uniformity of the agent before addition.

[0040] In this embodiment, the agent is first added to the feed pipe 82 through the feed hopper 81. The agent enters the weighing pipe 83 and is weighed by the weighing component 85. The controller 5 controls the operation of the motor 8551 according to the set agent dosage. The adjusting component 855 adjusts the position of the weighing plate 858 to ensure that the weight of the agent reaches the set value. Then, the motor 841 is started, driving the rotating shaft 844 to rotate. The long mixing rod 842 and the short mixing rod 843 thoroughly stir and mix the agent. After the mixing is completed, the solenoid valve 87 is opened, and the agent enters the medicine tank 1 through the discharge pipe 86 to mix and react with the sewage to achieve chemical phosphorus removal.

[0041] Example 2

[0042] The difference between this embodiment and Embodiment 1 is that the wastewater mixing mechanism 4 includes a discharge pipe 42, a second solenoid valve 43, a third motor 44, a mixing assembly 45, and a rotating box 47. The discharge pipe 42 is located on the lower side of the medicine tank 1, and the second solenoid valve 43 is located on the side of the discharge pipe 42. The third motor 44 is located at the center of the lower end of the medicine tank 1. The output end of the third motor 44 is located inside the medicine tank 1, where the rotating box 47 is located. The mixing assembly 45 is located inside the rotating box 47.

[0043] By adopting the above technical solution, efficient mixing of wastewater and reagents is achieved. The design of the stirring component 45 ensures that the reagents and wastewater are in full contact and react quickly, thereby improving phosphorus removal efficiency.

[0044] Specifically, the sewage mixing mechanism 4 also includes an annular slide rail 41 and a T-shaped slider 46. The lower side of the rotating box 47 is provided with a T-shaped slider 46, and the inside of the medicine tank 1 is provided with an annular slide rail 41 corresponding to the T-shaped slider 46.

[0045] By adopting the above technical solution, the cooperation between the T-shaped slider 46 and the annular slide rail 41 enables the rotating box 47 to rotate stably inside the medicine tank 1, ensuring the stability of the stirring process.

[0046] Specifically, the stirring assembly 45 includes a motor 451, a driving gear 452, a driven gear 453, a stirring shaft 454, and a stirring rod 455. The motor 451 is housed inside the rotating box 47. The driving gear 452 is located at the output end of the motor 451. The driven gear 453 is meshed with the side of the driving gear 452. The stirring shaft 454 is located at the upper end of the driven gear 453. The stirring rod 455 is located on the upper surface of the stirring shaft 454. The stirring shaft 454 and the rotating box 47 are rotatably connected via bearings.

[0047] By adopting the above technical solution, the motor 451 drives the drive gear 452 to rotate, the driven gear 453 drives the stirring shaft 454 to rotate, and the stirring rod 455 stirs and mixes the sewage and the agent to ensure that the agent and the sewage react fully.

[0048] In this embodiment, after the wastewater enters the medicine tank 1, motor 3 44 starts, driving the rotating box 47 to rotate. At the same time, motor 451 starts, and the driving gear 452 drives the stirring shaft 454 to rotate through the driven gear 453. The stirring rod 455 fully stirs and mixes the wastewater and the medicine. After the stirring is completed, the solenoid valve 2 43 is opened, and the treated wastewater is discharged through the discharge pipe 42, completing the chemical phosphorus removal process.

[0049] The working principle and usage process of this utility model are as follows: First, the medicine is added to the feed pipe 82 through the feed hopper 81. The medicine enters the weighing pipe 83 and is weighed by the weighing component 85. The controller 5 controls the operation of motor 8551 according to the set medicine dosage. The adjusting component 855 adjusts the position of the weighing plate 858 to ensure that the weight of the medicine reaches the set value. Subsequently, motor 841 starts, driving the rotating shaft 844 to rotate. The long mixing rod 842 and the short mixing rod 843 thoroughly stir and mix the medicine. After mixing, solenoid valve 1 87 is opened, and the reagent enters the reagent tank 1 through the feed pipe 86 to mix and react with the wastewater to achieve chemical phosphorus removal. After the wastewater enters the reagent tank 1, motor 3 44 is started, driving the rotating box 47 to rotate. At the same time, motor 451 is started, and the driving gear 452 drives the stirring shaft 454 to rotate through the driven gear 453. The stirring rod 455 fully mixes the wastewater and reagent. After mixing, solenoid valve 2 43 is opened, and the treated wastewater is discharged through the discharge pipe 42, completing the chemical phosphorus removal process.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic dosing control device for chemical phosphorus removal in wastewater treatment, comprising a chemical tank (1), wherein a mounting ring (2) is provided on the lower surface of the chemical tank (1), a support leg (3) is provided at the lower end of the mounting ring (2), a connecting rod (6) is provided at the upper end of the chemical tank (1), a mixing tank (7) is provided at the upper end of the connecting rod (6), and a controller (5) is provided on the side of the chemical tank (1), characterized in that: The upper end of the mixing tank (7) is equipped with a quantitative feeding mechanism (8), and the inside of the medicine tank (1) is equipped with a sewage mixing mechanism (4). The drug quantitative feeding mechanism (8) includes a feeding hopper (81), a feeding pipe (82), a weighing pipe (83), a mixing component (84), a weighing component (85), a discharge pipe (86), and a solenoid valve (87). The upper end of the mixing box (7) is provided with three sets of weighing pipes (83), the weighing pipes (83) are provided with weighing components (85), the upper end of the weighing pipes (83) is provided with a feeding pipe (82), the upper end of the feeding pipes (82) is provided with a feeding hopper (81), the mixing box (7) is provided with a mixing component (84), the lower end of the mixing box (7) is provided with a discharge pipe (86), and the side of the discharge pipe (86) is provided with a solenoid valve (87).

2. The automatic dosing control device for chemical phosphorus removal in wastewater treatment according to claim 1, characterized in that: The weighing assembly (85) includes a mounting plate (853), ear plates (854), an adjustment assembly (855), a weighing sensor (856), a connecting plate (857), and a weighing plate (858). Two sets of ear plates (854) are provided on the side of the mounting plate (853). An adjustment assembly (855) is provided on the side of one set of ear plates (854). A connecting plate (857) is provided at the other end of the adjustment assembly (855). A weighing plate (858) is provided on the side of the connecting plate (857). A mounting groove corresponding to the weighing plate (858) is opened inside the mounting plate (853). A weighing sensor (856) is provided inside the weighing plate (858).

3. The automatic dosing control device for chemical phosphorus removal in wastewater treatment according to claim 2, characterized in that: The weighing assembly (85) also includes an inner rod (851) and an outer rod (852). The outer rod (852) is provided on the side of another set of ear plates (854), and the inner rod (851) is provided at the other end of the outer rod (852).

4. The automatic dosing control device for chemical phosphorus removal in wastewater treatment according to claim 2, characterized in that: The adjustment assembly (855) includes a motor (8551), a screw (8552), a telescopic rod (8553), and a sleeve rod (8554). The motor (8551) is provided on one side of a set of ear plates (854), and the sleeve rod (8554) is provided on the other side of the set of ear plates (854). The output end of the motor (8551) is provided with a screw (8552), and the surface of the screw (8552) is threadedly connected to the telescopic rod (8553).

5. The automatic dosing control device for chemical phosphorus removal in wastewater treatment according to claim 4, characterized in that: The adjustment component (855) also includes a strip-shaped protrusion (8555) and a strip-shaped groove (8556). The inner wall of the sleeve rod (8554) is provided with a strip-shaped protrusion (8555), and the side of the telescopic rod (8553) is provided with a strip-shaped groove (8556) corresponding to the strip-shaped protrusion (8555).

6. The automatic dosing control device for chemical phosphorus removal in wastewater treatment according to claim 1, characterized in that: The mixing assembly (84) includes a second motor (841), a long mixing rod (842), a short mixing rod (843), and a rotating shaft (844). The second motor (841) is located at the center of the upper end of the mixing box (7). The output end of the second motor (841) is provided with a rotating shaft (844). The surface of the rotating shaft (844) is provided with a long mixing rod (842), and the surface of the rotating shaft (844) is provided with a short mixing rod (843) near the long mixing rod (842).

7. The automatic dosing control device for chemical phosphorus removal in wastewater treatment according to claim 1, characterized in that: The wastewater mixing mechanism (4) includes a discharge pipe (42), a second solenoid valve (43), a third motor (44), a mixing assembly (45), and a rotating box (47). The discharge pipe (42) is provided on the lower side of the medicine tank (1), the second solenoid valve (43) is provided on the side of the discharge pipe (42), the third motor (44) is provided at the center of the lower end of the medicine tank (1), the output end of the third motor (44) is located inside the medicine tank (1), and the rotating box (47) is provided inside the rotating box (47). The mixing assembly (45) is provided inside the rotating box (47).

8. The automatic dosing control device for chemical phosphorus removal in wastewater treatment according to claim 7, characterized in that: The sewage mixing mechanism (4) also includes an annular slide rail (41) and a T-shaped slider (46). The lower side of the rotating box (47) is provided with a T-shaped slider (46), and the medicine box (1) is provided with an annular slide rail (41) corresponding to the T-shaped slider (46).

9. An automatic dosing control device for chemical phosphorus removal in wastewater treatment according to claim 7, characterized in that: The stirring assembly (45) includes a motor (451), a drive gear (452), a driven gear (453), a stirring shaft (454), and a stirring rod (455). The motor (451) is installed inside the rotating box (47). The output end of the motor (451) is provided with a drive gear (452). The driven gear (453) is meshed with the side of the drive gear (452). The stirring shaft (454) is provided at the upper end of the driven gear (453). The stirring rod (455) is provided on the upper surface of the stirring shaft (454). The stirring shaft (454) and the rotating box (47) are rotatably connected by bearings.

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