Sewage dosing device capable of adjusting dosing amount

Abstract

The invention relates to the technical field of sewage treatment equipment, and discloses a sewage dosing device capable of adjusting dosing amount, which comprises a treatment box, the treatment box is respectively communicated with a liquid inlet pipe and a liquid discharge pipe, a rotatable dosing cylinder is arranged in the treatment box, and the upper end and the lower end of the dosing cylinder are respectively rotatably connected with the top wall and the bottom wall of the treatment box. One end of the chemical adding cylinder is connected with a rotary driving mechanism fixed outside the treatment box, a plurality of chemical adding mechanisms are axially arranged on the outer wall of the chemical adding cylinder, each chemical adding mechanism comprises a plurality of chemical adding parts, the chemical adding parts in each chemical adding mechanism are sequentially arranged in a staggered mode, and stirring paddles are fixedly arranged below each chemical adding mechanism. The chemical feeding position of the chemical feeding part can be adjusted in real time, so that chemical distribution is more uniform, the sewage fluidity is effectively improved by the stirring paddle, the chemical is in comprehensive contact with the sewage, the treatment effect is remarkably improved, and the whole device is simple in structure, convenient to operate and low in treatment cost.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, and in particular to a wastewater dosing device with adjustable dosage. Background Technology

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or for reuse. This process requires the use of wastewater dosing devices to purify the wastewater.

[0003] In existing wastewater treatment processes, it is common practice to add chemical solutions to the wastewater to promote the flocculation and sedimentation of suspended solids. In current technologies, a certain amount of chemical solution is typically added to the tank based on the wastewater volume, followed by stirring to ensure thorough mixing. However, in practice, it has been found that if the dosage and stirring speed are not matched—for example, if the dosage is too fast or too much is added at once—some of the chemical may be encapsulated by the generated flocs, preventing it from working effectively and resulting in waste. This waste not only increases the difficulty of subsequent treatment, such as increasing sludge production or causing substandard effluent quality, but also makes poorly treated wastewater more difficult to treat. Conversely, if the dosage is too slow, the wastewater treatment efficiency is too low to meet the needs of the enterprise.

[0004] The utility model patent with authorization announcement number CN215711868U discloses a wastewater treatment device for chemical dosing. In this device, when wastewater is stirred in the treatment tank, a servo motor 2 drives a rotating rod 3 to rotate the stirring blade 4. Simultaneously, during the rotation of the rotating rod 3, the second guide rod 17 and the second conductive block 18 on its outer edge rotate with it. When the second conductive block 18 rotates to contact the first conductive block 16, the electromagnet 14 is triggered. The magnetic force generated by the electromagnet 14 exerts a magnetic force on the metal baffle 12. When the metal baffle 12 moves along the second guide rod 10 toward the electromagnet 14, it will release the dosing tube 8. The medicine in the storage tank 7 will enter the treatment tank 1 along the dosing tube 8 and start stirring. When the second conductive block 18 rotates and no longer contacts the first conductive block 16, the electromagnet 14 loses its attraction force. The metal baffle 12 returns to its original position under the action of the spring 13, blocking the dosing tube 8 and stopping the dosing. During the rotation of the rotating rod 3, the dosing tube 8 will intermittently add medicine to the treatment tank 1.

[0005] The above-mentioned device adjusts the dosage by intermittent feeding. The frequency of intermittent feeding through the dosing pipe and the stirring speed of the stirring blades are both controlled by the rotation speed of the rotating rod. Therefore, the dosage and stirring speed can be matched. However, the outlet position of the dosing pipe in this device is fixed, which is not conducive to the dispersion of the agent into the sewage. This will still greatly reduce the mixing effect between the agent and the sewage. In addition, the device uses traditional fixed stirring. Therefore, the sewage far from the stirring center has low flow and poor contact with the agent, further reducing the sewage treatment effect. Summary of the Invention

[0006] The purpose of this invention is to provide a wastewater dosing device with adjustable dosage. During use, the dosing position of the dosing section can be adjusted in real time, resulting in more uniform drug distribution. The stirring paddle effectively increases the fluidity of the wastewater, allowing the drug to fully contact the wastewater, thus significantly improving the treatment effect. The entire device has a simple structure, is easy to operate, and has low treatment costs.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0008] An adjustable dosing device for wastewater includes a treatment tank connected to an inlet pipe and a outlet pipe. The device is characterized by: a rotatable dosing cylinder inside the treatment tank, with its upper and lower ends rotatably connected to the top and bottom walls of the treatment tank, respectively; one end of the dosing cylinder connected to a rotating drive mechanism fixed outside the treatment tank; multiple sets of dosing mechanisms axially arranged on the outer wall of the dosing cylinder; each set of dosing mechanisms including multiple dosing parts; the dosing parts in each set of dosing mechanisms being arranged alternately; and a stirring paddle fixed below each set of dosing mechanisms.

[0009] By adopting the above technical solution, the treatment tank is used to hold the sewage to be treated, and the dosing cylinder is used to hold the sewage treatment agent. During dosing, the agent in the dosing cylinder enters the treatment tank through the dosing part of each dosing mechanism. At the same time, the rotary drive mechanism drives the dosing cylinder to drive the dosing mechanism to rotate synchronously, so that the dosing part and the agitator in each dosing mechanism can rotate synchronously. This enables real-time adjustment of the dosing position of the dosing part, ensuring that the agent can be more evenly distributed in the entire treatment tank, improving sewage treatment efficiency, achieving the best agent dispersion effect, and allowing multiple dosing mechanisms to simultaneously and accurately dosing the agent in different dosing areas, effectively improving the dosing efficiency. The synchronous rotation of the agitator and the dosing mechanism effectively increases the flowability of sewage, allowing the agent to fully contact the sewage, significantly improving the treatment effect. The entire device has a simple structure, is easy to operate, and has low treatment cost.

[0010] A further feature of the present invention is that the dosing unit includes a dosing cylinder fixedly connected to the outer wall of the dosing cylinder. The dosing cylinder is provided with an inlet communicating with the inner cavity of the dosing cylinder and an outlet communicating with the inner cavity of the treatment tank. The inlet is provided with a one-way valve 1 for the drug flowing into the dosing cylinder and into the dosing cylinder, and the outlet is provided with a one-way valve 2 for the drug flowing into the treatment tank.

[0011] By adopting the above technical solution, the agent in the dosing cylinder enters the dosing cylinder through the inlet of the dosing cylinder, which is connected to its inner cavity, and then sprays out through the outlet of the dosing cylinder. One-way valve one in the inlet controls the flow of the agent in the dosing cylinder into the dosing cylinder, and one-way valve two in the outlet ensures that the agent enters the treatment tank in one direction. The one-way valve design of the inlet and outlet ensures accurate quantitative dosing of the agent while preventing backflow. This not only improves the reliability and stability of the device, but also greatly improves the utilization rate and treatment effect of the agent, ensuring the stability and efficiency of the entire sewage treatment process.

[0012] A further feature of the present invention is that the dosing cylinder is provided with a piston that can slide back and forth along its inner wall, the inlet and outlet are located on the same side of the piston, the other side of the piston is fixedly connected to the piston rod, and the piston rod is connected to the dosing drive mechanism.

[0013] By adopting the above technical solution, during dosing, the dosing drive mechanism drives the piston rod to move the piston back and forth, creating an alternating negative and positive pressure environment inside the dosing cylinder. This allows the inlet and outlet on the same side of the piston to smoothly draw the agent from the dosing cylinder and push it out into the treatment tank to mix with the wastewater. The speed and stroke of the piston rod driven by the dosing drive mechanism determine the frequency and amount of agent drawn in and pushed out. Therefore, the dosing drive mechanism can achieve precise control and adjustment of the agent dosage, ensuring full utilization of the agent and reducing agent waste.

[0014] A further configuration of the present invention is as follows: the dosing drive mechanism includes a drive rack fixed on the piston rod and a drive gear one meshing with the drive rack. The drive gear one is fixedly connected to a gear shaft, and the two ends of the gear shaft are respectively rotatably connected to a turntable one and a turntable two coaxially fixed at both ends of the dosing cylinder.

[0015] A further feature of the present invention is that a drive rod and a torsion spring connected to the drive rod are fitted on each gear shaft, one end of the torsion spring is fixed on the drive rod, and the other end of the torsion spring is fixed on the gear shaft.

[0016] A further feature of the present invention is that the inner wall of the processing box is provided with a plurality of teeth for actuating the drive rod, and the teeth are evenly distributed at equal intervals.

[0017] By adopting the above technical solution, when the dosing cylinder rotates, it sequentially drives the stirring paddle, dosing cylinder, turntable one, and turntable two, which are fixedly connected to it, to rotate synchronously. When turntable one and turntable two rotate synchronously, they drive the gear shafts rotatably connected to them to rotate synchronously in the circumferential direction. When the gear shafts rotate in the circumferential direction, they drive the drive rods fixedly connected to them to move relative to the teeth on the inner wall of the treatment box, thereby sequentially contacting and separating from each tooth. When the drive rod contacts the tooth, it is blocked by the tooth, and the gear shafts fixedly connected to the drive rod rotate in the opposite direction relative to turntable one and turntable two at a certain angle. During this process, the torsion spring accumulates elastic force. When the drive rod disengages from the gear, it resets under the restoring force of the torsion spring. During the reset process, the drive rod drives the gear shaft to rotate in the forward direction relative to turntable one and turntable two. In the process of reciprocating forward and reverse rotation, the gear shaft drives the drive gear one, which is fixedly connected to it, to rotate in the forward and reverse directions. When the drive gear one rotates in the forward and reverse directions, it drives the drive rack meshing with it to reciprocate. When the drive rack reciprocates, it drives the piston rod and piston to reciprocate, thereby achieving precise drug delivery. Among these, by controlling the rotation of the dosing cylinder... The rotational speed of the dosing cylinder, rotating disk one, and rotating disk two can be controlled. This allows control over the frequency and duration of contact between the drive rod and the teeth. Controlling the frequency and duration of contact between the drive rod and the teeth controls the speed and frequency of the gear shaft's alternating forward and reverse rotation. This, in turn, controls the speed and frequency of the drive gear one's alternating forward and reverse rotation, thereby controlling the speed and frequency of the reciprocating motion of the drive rack, piston, and piston rod. This enables flexible control of the speed and frequency of chemical dosing, ensuring optimal wastewater treatment results and preventing excessively rapid dosing. The spacing between the teeth determines the forward and reverse rotation angles of the gear shaft, which in turn determines the piston's stroke. The piston's motion determines the amount of chemical added in a single application, ensuring the accuracy of each dosage. The stirring speed of the agitator and the speed and frequency of chemical dosing are all precisely controlled by the rotational speed of the dosing cylinder. These three elements work together to achieve precise adjustment of the dosage and uniform mixing of the chemicals, ensuring optimal wastewater treatment results.

[0018] A further feature of the present invention is that a plurality of stirring blades are fixedly provided on the gear shaft, and the stirring blades are arranged alternately in sequence.

[0019] By adopting the above technical solution, the gear shaft rotates synchronously with turntable one and turntable two in the circumferential direction, and at a certain frequency, it rotates in both forward and reverse directions, which can drive the stirring blades fixedly connected to it to perform multi-angle stirring. This effectively increases the flow of sewage far from the stirring center, allowing the liquid in the treatment tank to fully convect, greatly enhancing the mixing effect of the agent and sewage, and improving the treatment efficiency. The stirring speed of the stirring blades is matched with the circumferential and rotational speeds of the gear shaft, ensuring that the stirring speed of the stirring blades is precisely matched with the dosage of the agent, thereby achieving efficient fusion of the agent and sewage and further improving the sewage treatment effect.

[0020] A further configuration of the present invention is as follows: the rotary drive mechanism includes a drive motor fixed to the top of the processing tank, and a second drive gear is fixedly provided on the output shaft of the drive motor, the second drive gear meshing with a driven gear coaxially fixed to the top of the dosing cylinder.

[0021] By adopting the above technical solution, after the drive motor starts, it drives the second drive gear, which is fixedly connected to its output shaft, to rotate. When the second drive gear rotates, it drives the driven gear meshing with it to rotate. When the driven gear rotates, it drives the dosing cylinder, which is fixedly connected to it, to rotate. This drives all the components of the entire device to work together, ensuring that the dosing and stirring process is precise and efficient, achieving the optimal sewage treatment effect. The structure is simple and the operation is convenient.

[0022] A further provision of the present invention is that: a liquid level sensor is provided inside the processing tank; the top of the dosing cylinder is connected to the output port of the dosing pump through a dosing pipe; the input port of the dosing pump is connected to the mixing tank; and a liquid level sensor is provided inside the dosing cylinder.

[0023] By adopting the above technical solution, the first liquid level sensor monitors the changes in the liquid level in the treatment tank in real time. Based on the liquid level information, the dosage of the agent can be accurately determined, so that the dosage of the agent is precisely matched with the sewage treatment volume, avoiding over- or under-dosing and ensuring stable treatment effect. The second liquid level sensor monitors the changes in the liquid level of the agent in the dosing cylinder in real time, and adjusts the dosing pump to automatically supply the agent into the dosing cylinder through the control system, avoiding the overflow or under-dosing of the agent, ensuring that the liquid level of the agent in the dosing cylinder is constant, further ensuring the continuity and stability of the agent dosing, and improving the operating efficiency and reliability of the overall sewage treatment system.

[0024] A further feature of the present invention is that the first liquid level sensor, the second liquid level sensor, the drive motor, and the dosing pump are all electrically connected to the controller.

[0025] By adopting the above technical solution, level sensor 1 and level sensor 2 transmit the detected level information to the controller. The controller then precisely adjusts the motor speed and dosage based on this information to ensure uniform mixing of the agent and wastewater, optimal treatment effect, and stable and efficient system operation. Furthermore, level sensor 1, level sensor 2, drive motor, and dosing pump are connected through real-time transmission and processing of electrical signals, effectively ensuring the automatic and coordinated operation of each component. This enables precise control of the agent dosing and mixing process, further optimizing the wastewater treatment effect and the intelligence level of the device.

[0026] The beneficial effects of this invention are:

[0027] 1. In this invention, the treatment tank is used to contain the wastewater to be treated, and the dosing cylinder is used to contain the wastewater treatment agent. During dosing, the agent in the dosing cylinder enters the treatment tank through the dosing parts of each dosing mechanism. At the same time, the rotary drive mechanism drives the dosing cylinder to drive each group of dosing mechanisms to rotate synchronously, so that the dosing parts and stirring paddles in each group of dosing mechanisms can rotate synchronously, thereby realizing the real-time adjustment of the dosing position of the dosing parts, ensuring that the agent can be more evenly distributed in the entire treatment tank, improving the wastewater treatment efficiency, achieving the best agent dispersion effect, and multiple groups of dosing mechanisms can simultaneously and accurately dosing the agent in different dosing areas, effectively improving the dosing efficiency. The synchronous rotation of the stirring paddle and the dosing mechanism effectively increases the flowability of the wastewater, allowing the agent to fully contact the wastewater, significantly improving the treatment effect. The entire device has a simple structure, is easy to operate, and has low treatment costs.

[0028] 2. In this invention, the reagent in the dosing cylinder enters the dosing cylinder through the inlet of the dosing cylinder, which is connected to its inner cavity, and then sprays out through the outlet of the dosing cylinder. One-way valve one in the inlet controls the flow of the reagent in the dosing cylinder into the dosing cylinder, and one-way valve two in the outlet ensures that the reagent enters the treatment tank in one direction. The one-way valve design of the inlet and outlet ensures accurate quantitative dosing of the reagent while preventing backflow. This not only improves the reliability and stability of the device, but also greatly improves the utilization rate and treatment effect of the reagent, ensuring the stability and efficiency of the entire sewage treatment process.

[0029] 3. During dosing, the present invention drives the piston rod to reciprocate, creating an alternating negative and positive pressure environment inside the dosing cylinder. This facilitates the smooth intake and discharge of the agent from the dosing cylinder through the inlet and outlet on the same side of the piston, and then pushes the agent into the treatment tank to mix with the wastewater. The speed and stroke of the piston rod driven by the dosing mechanism determine the frequency and amount of agent intake and discharge. Therefore, the dosing mechanism can achieve precise control and adjustment of the agent dosage, ensuring full utilization of the agent and reducing agent waste.

[0030] 4. In this invention, a drive motor in a rotary drive mechanism drives a second drive gear fixedly connected to its output shaft to rotate. When the second drive gear rotates, it drives a driven gear meshing with it to rotate. When the driven gear rotates, it drives a dosing cylinder fixedly connected to it to rotate. When the dosing cylinder rotates, it sequentially drives a stirring paddle, a dosing cylinder, a first turntable, and a second turntable fixedly connected to it to rotate synchronously. When the first and second turntables rotate synchronously, they drive the rotating shafts of each gear rotatably connected to them to rotate synchronously circumferentially. When the rotating shafts rotate circumferentially, they drive a drive rod fixedly connected to it to displace relative to the teeth on the inner wall of the treatment tank, thereby sequentially contacting each tooth. When the drive rod contacts the gear teeth, it is blocked by the gear teeth. The gear shaft, which is fixedly connected to the drive rod, rotates in the opposite direction relative to turntable one and turntable two by a certain angle. During this process, the torsion spring accumulates elastic force. When the drive rod leaves the gear teeth, it resets under the restoring force of the torsion spring. During the reset process, the drive rod drives the gear shaft to rotate in the forward direction relative to turntable one and turntable two. During the reciprocating forward and reverse rotation of the gear shaft, it drives the drive gear one, which is fixedly connected to it, to rotate in the reciprocating forward and reverse direction. When the drive gear one rotates in the reciprocating forward and reverse direction, it drives the drive rack that meshes with it to reciprocate. When the drive rack reciprocates, it drives the piston rod. The reciprocating motion of the piston and cylinder enables precise drug delivery. By controlling the rotational speed of the dosing cylinder, the rotational speeds of the dosing cylinder, turntable one, and turntable two can be controlled. This allows control over the frequency and duration of contact between the drive rod and the teeth. Controlling the frequency and duration of contact between the drive rod and the teeth controls the speed and frequency of the gear shaft's alternating forward and reverse rotation. Controlling the speed and frequency of the gear shaft's alternating forward and reverse rotation controls the speed and frequency of the drive gear one's alternating forward and reverse rotation. This, in turn, controls the speed and frequency of the reciprocating motion of the drive rack, piston, and piston rod, thus achieving flexible control. The speed and frequency of agent dosing ensure optimal wastewater treatment results and prevent excessively rapid dosing. The spacing between the gear teeth determines the forward and reverse rotation angles of the gear shaft, which in turn determines the piston stroke. The piston stroke determines the amount of agent dosing per cycle, ensuring the accuracy of each dosing. The stirring speed of the agitator and the dosing speed and frequency are precisely controlled by the rotation speed of the dosing cylinder. These three elements work together to achieve precise adjustment of the dosing amount and uniform mixing of the agents, ensuring optimal wastewater treatment results. The structure is simple and easy to operate.

[0031] 5. In this invention, the gear shaft rotates synchronously with turntable one and turntable two in a circumferential direction, and rotates in both forward and reverse directions at a certain frequency. This drives the stirring blades fixedly connected to it to perform multi-angle stirring, effectively increasing the flow of sewage far from the stirring center. This allows for full convection of the liquid in the treatment tank, greatly enhancing the mixing effect of the agent and sewage, and improving treatment efficiency. The stirring speed of the stirring blades matches the circumferential and rotational speeds of the gear shaft, ensuring that the stirring speed of the stirring blades is precisely matched with the dosage of the agent, thereby achieving efficient fusion of the agent and sewage and further improving the sewage treatment effect.

[0032] 6. In this invention, level sensor one monitors the changes in liquid level in the treatment tank in real time. Based on the liquid level information, the dosage of the agent can be accurately determined, so that the dosage of the agent is precisely matched with the sewage treatment volume, avoiding over- or under-dosing and ensuring stable treatment effect. Level sensor two monitors the changes in the liquid level of the agent in the dosing cylinder in real time, and adjusts the dosing pump to automatically supply the agent into the dosing cylinder through the control system, avoiding the overflow or under-dosing of the agent, ensuring a constant liquid level of the agent in the dosing cylinder, further ensuring the continuity and stability of the agent dosing, and improving the operating efficiency and reliability of the overall sewage treatment system.

[0033] 7. In this invention, level sensor one and level sensor two transmit the detected level information to the controller. The controller precisely adjusts the motor speed and dosage based on this information to ensure uniform mixing of the agent and wastewater, optimal treatment effect, and stable and efficient system operation. Furthermore, level sensor one, level sensor two, drive motor, and dosing pump are connected through real-time transmission and processing of electrical signals, effectively ensuring automatic and coordinated operation of each component. This enables precise control of the agent dosing and stirring process, further optimizing the wastewater treatment effect and the intelligence level of the device. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a longitudinal cross-sectional schematic diagram of a wastewater dosing device with adjustable dosage according to the present invention.

[0036] Figure 2 yes Figure 1 A magnified view of part A in the diagram.

[0037] Figure 3 This is a cross-sectional schematic diagram of a wastewater dosing device with adjustable dosage according to the present invention.

[0038] In the diagram: 1. Processing tank; 2. Inlet pipe; 3. Drain pipe; 4. Dosing cylinder; 5. Rotary drive mechanism; 51. Drive motor; 52. Drive gear two; 53. Driven gear; 6. Dosing mechanism; 61. Dosing section; 611. Dosing cylinder; 612. Inlet; 613. Outlet; 614. One-way valve one; 615. One-way valve two; 616. Piston; 617. Piston rod; 62. Dosing drive mechanism; 621. Drive rack; 622. Drive gear one; 623. Gear shaft; 624. Drive rod; 625. Torsion spring; 626. Pulley; 7. Stirring paddle; 8. Turntable one; 9. Turntable two; 10. Stirring blade; 11. Liquid level sensor one; 12. Dosing pipe; 13. Liquid level sensor two. Detailed Implementation

[0039] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0040] Examples, such as Figures 1-3 As shown, a wastewater dosing device with adjustable dosage includes a treatment tank 1, which is connected to an inlet pipe 2 and a drain pipe 3. A rotatable dosing cylinder 4 is provided inside the treatment tank 1. The upper and lower ends of the dosing cylinder 4 are rotatably connected to the top and bottom walls of the treatment tank 1, respectively. One end of the dosing cylinder 4 is connected to a rotary drive mechanism 5 fixed outside the treatment tank 1. Multiple sets of dosing mechanisms 6 are axially arranged on the outer wall of the dosing cylinder 4. Each set of dosing mechanisms 6 includes multiple dosing parts 61. The dosing parts 61 in each set of dosing mechanisms 6 are arranged alternately. A stirring paddle 7 is fixedly provided below each set of dosing mechanisms 6.

[0041] Furthermore, the dosing unit 61 includes a dosing cylinder 611 fixedly connected to the outer wall of the dosing cylinder 4. The dosing cylinder 611 is provided with an inlet 612 communicating with the inner cavity of the dosing cylinder 4 and an outlet 613 communicating with the inner cavity of the treatment tank 1. The inlet 612 is provided with a one-way valve 614 for the drug in the dosing cylinder 611 to flow into the dosing cylinder 4. The outlet 613 is provided with a one-way valve 615 for the drug in the dosing cylinder 4 to flow into the treatment tank 1.

[0042] Furthermore, the dosing cylinder 611 is provided with a piston 616 that can slide back and forth along its inner wall. The inlet 612 and outlet 613 are located on the same side of the piston 616. The other side of the piston 616 is fixedly connected to the piston rod 617, and the piston rod 617 is connected to the dosing drive mechanism 62.

[0043] Furthermore, the dosing drive mechanism 62 includes a drive rack 621 fixed on the piston rod 617 and a drive gear 622 meshing with the drive rack 621. The drive gear 622 is fixedly connected to a gear shaft 623. The two ends of the gear shaft 623 are rotatably connected to a turntable 8 and a turntable 9 coaxially fixed at both ends of the dosing cylinder 4, respectively.

[0044] Furthermore, a drive rod 624 and a torsion spring 625 connected to the drive rod 624 are fitted on each gear shaft 623. One end of the torsion spring 625 is fixed to the drive rod 624, and the other end of the torsion spring 625 is fixed to the gear shaft 623.

[0045] Furthermore, the inner wall of the processing box 1 is provided with a plurality of teeth 626 for actuating the drive rod 624, and the teeth 626 are evenly distributed at equal intervals.

[0046] Furthermore, a plurality of stirring blades 10 are fixedly provided on the gear shaft 623, and the stirring blades 10 are arranged alternately in sequence.

[0047] Furthermore, the rotary drive mechanism 5 includes a drive motor 51 fixed on the top of the treatment box 1, and a second drive gear 52 is fixed on the output shaft of the drive motor 51. The second drive gear 52 meshes with a driven gear 53 coaxially fixed on the top of the dosing cylinder 4.

[0048] Furthermore, the processing tank 1 is equipped with a liquid level sensor 11, the top of the dosing cylinder 4 is connected to the output port of the dosing pump through the dosing pipe 12, the input port of the dosing pump is connected to the dosing tank, and the dosing cylinder 4 is equipped with a liquid level sensor 13.

[0049] Furthermore, the liquid level sensor 11, liquid level sensor 2 13, drive motor 51, and dosing pump are all electrically connected to the controller.

[0050] The working principle of this invention is as follows: the treatment tank 1 is used to contain the sewage to be treated, and the dosing cylinder 4 is used to contain the sewage treatment agent. During dosing, the agent in the dosing cylinder 4 enters the treatment tank 1 through the dosing part 61 of each dosing mechanism 6. At the same time, the rotation drive mechanism 5 drives the dosing cylinder 4 to drive each group of dosing mechanisms 6 to rotate synchronously, so that the dosing part 61 and the stirring paddle 7 in each group of dosing mechanisms 6 can rotate synchronously, thereby realizing the real-time adjustment of the dosing position of the dosing part 61, ensuring that the agent can be more evenly distributed in the entire treatment tank 1, improving the sewage treatment efficiency, achieving the best agent dispersion effect, and multiple groups of dosing mechanisms 6 can simultaneously and accurately dosing the agent in different dosing areas, effectively improving the dosing efficiency. The synchronous rotation of the stirring paddle 7 and the dosing mechanism 6 effectively increases the sewage flow, allowing the agent to fully contact the sewage, significantly improving the treatment effect. The entire device has a simple structure, is easy to operate, and has low treatment cost.

[0051] The dosing drive mechanism 62 drives the piston rod 617 in the dosing section 61 to drive the piston 616 to slide back and forth, creating an alternating negative and positive pressure environment inside the dosing cylinder 611. This allows the inlet 612 and outlet 613 on the same side of the piston 616 to smoothly draw the agent from the dosing cylinder 4 into the dosing cylinder 611 and push it out of the dosing cylinder 611 into the treatment tank 1 to mix with the sewage. The speed and stroke of the dosing drive mechanism 62 driving the piston rod 617 to drive the piston 616 to reciprocate determine the frequency and amount of agent drawn in and pushed out. Therefore, the dosing drive mechanism 62 can achieve precise control and adjustment of the agent dosage, ensuring full utilization of the agent and reducing agent waste.

[0052] In the rotary drive mechanism 5, the drive motor 51 drives the drive gear 52, which is fixedly connected to its output shaft, to rotate. When the drive gear 52 rotates, it drives the driven gear 53, which meshes with it, to rotate. The driven gear 53, in turn, drives the dosing cylinder 4, which is fixedly connected to it, to rotate. When the dosing cylinder 4 rotates, it sequentially drives the stirring paddle 7, the dosing cylinder 611, the first turntable 8, and the second turntable 9, all fixedly connected to it, to rotate synchronously. When the first turntable 8 and the second turntable 9 rotate synchronously, they drive the gear shafts 623, which are rotatably connected to them, to rotate synchronously in the circumferential direction. When the gear shafts 623 rotate circumferentially, they drive the drive rod 624, which is fixedly connected to it, to displace relative to the teeth 626 on the inner wall of the treatment tank 1, thereby sequentially contacting and separating from each tooth 626. When the drive rod 624 contacts the paddle 626, it is blocked by the paddle 626. The gear shaft 623, which is fixedly connected to the drive rod 624, rotates in the opposite direction relative to the first turntable 8 and the second turntable 9 by a certain angle. During this process, the torsion spring 625 accumulates elastic force. When the drive rod 624 leaves the paddle 626, it resets under the restoring force of the torsion spring 625. During the reset process, the drive rod 624 drives the gear shaft 623 to rotate in the forward direction relative to the first turntable 8 and the second turntable 9. During the reciprocating forward and reverse rotation, the gear shaft 623 drives the drive gear 622, which is fixedly connected to it, to rotate in the forward and reverse directions. When the drive gear 622 rotates in the forward and reverse directions, it drives the drive rack 621, which meshes with it, to reciprocate. 1. The reciprocating motion drives the piston rod 617 and piston 616 to reciprocate, thereby achieving precise drug delivery. By controlling the rotational speed of the dosing cylinder 4, the rotational speeds of the dosing cylinder 611, turntable 8, and turntable 9 can be controlled. Therefore, the frequency and duration of contact between the drive rod 624 and the gear 626 can be controlled. Controlling the frequency and duration of contact between the drive rod 624 and the gear 626 controls the speed and frequency of the alternating forward and reverse rotation of the gear shaft 623. Controlling the speed and frequency of the alternating forward and reverse rotation of the gear shaft 623 controls the speed and frequency of the alternating forward and reverse rotation of the drive gear 622. This, in turn, controls the drive rack 621, piston 616, and piston rod 617. The speed and frequency of the reciprocating motion allow for flexible control of the speed and frequency of chemical dosing, ensuring optimal wastewater treatment results and preventing excessively rapid dosing. The spacing between the gear teeth 626 determines the forward and reverse rotation angles of the gear shaft 623, which in turn determines the stroke of the piston 616. The movement of the piston 616 determines the amount of chemical dosing per cycle, ensuring the accuracy of each dosing. The stirring speed of the agitator 7 and the speed and frequency of chemical dosing are precisely controlled by the rotation speed of the dosing cylinder 4. These three elements work together to achieve precise adjustment of the dosing amount and uniform mixing of the chemicals, ensuring optimal wastewater treatment results. The structure is simple and easy to operate.

Claims

1. A wastewater dosing device with adjustable dosage, comprising a treatment tank (1), wherein the treatment tank (1) is connected to an inlet pipe (2) and a drain pipe (3), characterized in that: The treatment box (1) is equipped with a rotatable dosing cylinder (4). The upper and lower ends of the dosing cylinder (4) are rotatably connected to the top and bottom walls of the treatment box (1), respectively. One end of the dosing cylinder (4) is connected to a rotary drive mechanism (5) fixed outside the treatment box (1). The outer wall of the dosing cylinder (4) is axially provided with multiple sets of dosing mechanisms (6). Each set of dosing mechanisms (6) includes multiple dosing parts (61). The dosing parts (61) in each set of dosing mechanisms (6) are arranged alternately. A stirring paddle (7) is fixedly provided below each set of dosing mechanisms (6).

2. The wastewater dosing device with adjustable dosage according to claim 1, characterized in that: The dosing unit (61) includes a dosing cylinder (611) fixedly connected to the outer wall of the dosing cylinder (4). The dosing cylinder (611) is provided with an inlet (612) communicating with the inner cavity of the dosing cylinder (4) and an outlet (613) communicating with the inner cavity of the treatment tank (1). The inlet (612) is provided with a one-way valve (614) for the drug in the dosing cylinder (611) to flow into the dosing cylinder (4). The outlet (613) is provided with a one-way valve (615) for the drug in the dosing cylinder (4) to flow into the treatment tank (1).

3. A wastewater dosing device with adjustable dosage according to claim 2, characterized in that: The dosing cylinder (611) is equipped with a piston (616) that can slide back and forth along its inner wall. The inlet (612) and outlet (613) are located on the same side of the piston (616). The other side of the piston (616) is fixedly connected to the piston rod (617). The piston rod (617) is connected to the dosing drive mechanism (62).

4. The wastewater dosing device with adjustable dosage according to claim 3, characterized in that: The dosing drive mechanism (62) includes a drive rack (621) fixed on the piston rod (617) and a drive gear one (622) meshing with the drive rack (621). The drive gear one (622) is fixedly connected to the gear shaft (623). The two ends of the gear shaft (623) are rotatably connected to the turntable one (8) and the turntable two (9) coaxially fixed at both ends of the dosing cylinder (4).

5. A wastewater dosing device with adjustable dosage according to claim 4, characterized in that: Each gear shaft (623) is fitted with a drive rod (624) and a torsion spring (625) connected to the drive rod (624). One end of the torsion spring (625) is fixed on the drive rod (624), and the other end of the torsion spring (625) is fixed on the gear shaft (623).

6. The wastewater dosing device with adjustable dosage according to claim 5, characterized in that: The inner wall of the processing box (1) is provided with a plurality of teeth (626) for moving the drive rod (624), and each tooth (626) is evenly distributed at equal intervals.

7. A wastewater dosing device with adjustable dosage according to claim 6, characterized in that: Multiple stirring blades (10) are fixedly provided on the gear shaft (623), and the stirring blades (10) are arranged alternately in sequence.

8. The wastewater dosing device with adjustable dosage according to claim 1, characterized in that: The rotary drive mechanism (5) includes a drive motor (51) fixed on the top of the treatment box (1), and a drive gear (52) is fixed on the output shaft of the drive motor (51). The drive gear (52) meshes with a driven gear (53) coaxially fixed on the top of the dosing cylinder (4).

9. A wastewater dosing device with adjustable dosage according to claim 8, characterized in that: The processing tank (1) is equipped with a liquid level sensor (11), the top of the dosing cylinder (4) is connected to the output port of the dosing pump through the dosing pipe (12), the input port of the dosing pump is connected to the dosing tank, and the dosing cylinder (4) is equipped with a liquid level sensor (13).

10. A wastewater dosing device with adjustable dosage according to claim 9, characterized in that: The liquid level sensor 1 (11), liquid level sensor 2 (13), drive motor (51) and dosing pump are all electrically connected to the controller.

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