Integrated dosing device for sewage treatment agent

Abstract

The application relates to the technical field of sewage treatment, in particular to an integrated dosing device for sewage treatment agents, which comprises a dosing cylinder and further comprises: a liquid inlet pipe fixed on the outer wall of the dosing cylinder, one end of the liquid inlet pipe being in communication with the inside of the dosing cylinder and tangent to the inner wall of the dosing cylinder, and a medicine inlet pipe being fixedly connected in communication on the side wall of the liquid inlet pipe; and a plurality of liquid outlet pipes fixed on the side wall of the dosing cylinder. When the water quality is good, the rotational flow speed is slowed down, the residence time of the sewage and the agent in the dosing cylinder is prolonged, the agent and the sewage are slowly mixed, the flocculation is uniform and will not be broken, when the water quality is poor, the rotational flow speed can be accelerated, the strong rotational flow can tear the impurity group, the agent can fully contact the pollutants, the impurities can be quickly removed in time, and the impurities can be prevented from accumulating in the dosing cylinder.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment, and more particularly to an integrated dosing device for wastewater treatment agents. Background Technology

[0002] Chinese Patent Publication No. CN117509861A discloses a high-efficiency dosing coagulation device for an integrated domestic sewage treatment plant, including an inlet pipe, a mixing pipe, a flow meter, and a dosing device. The inlet pipe is connected to the mixing pipe, the flow meter is installed on the inlet pipe, and the dosing device is located on the side of the flow meter near the mixing pipe. The dosing device includes a dosing tank, a dosing pipe, an inlet pipe, and a dosing assembly. The dosing tank is located above the inlet pipe, and both ends of the dosing pipe are connected to the dosing tank and the inlet pipe, respectively. One end of the inlet pipe is connected to the dosing tank, and the other end of the inlet pipe is externally connected to a dosing device that is signal-connected to the flow meter.

[0003] As is known from existing technology, when treating sewage, a dosing pipe is installed at the sewage inlet pipe of the treatment tank so that the chemical agent can be directly combined with the sewage. The combined water is then discharged into the mixing channel and then discharged. Although this method can promote the mixing effect, some impurities will be precipitated after the sewage and chemical agent are mixed. The mixing channel is spiral or serpentine, with a narrow structure and dense bends, which can easily cause blockage in the channel, affecting the continuity and stability of the sewage treatment process. Furthermore, in actual treatment processes, wastewater quality fluctuates. When the water quality is good, a low flow rate is required to avoid excessive turbulence that breaks up the flocs. When the water quality is poor, the flow rate needs to be increased to increase mixing and reduce impurity deposition. However, since the existing mixing channels are prone to clogging, controlling the water flow to slow down the passage speed will actually exacerbate the precipitation of impurities, thereby increasing the degree of clogging. As a result, the existing mixing channels are difficult to adapt to water quality fluctuations. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an integrated dosing device for wastewater treatment agents.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: an integrated dosing device for wastewater treatment agents, comprising a dosing cylinder, and further comprising: The liquid inlet pipe is fixed on the outer wall of the dosing cylinder. One end of the liquid inlet pipe is connected to the inside of the dosing cylinder and is tangent to the inner wall of the dosing cylinder. A drug inlet pipe is fixedly connected to the side wall of the liquid inlet pipe. Multiple drain pipes are fixed to the side wall of the dosing cylinder; An adjusting component is provided for adjusting the drainage direction. The adjusting component includes a fixed block fixed to the outer wall of the dosing cylinder. One end of the fixed block has a slot that fits around the outside of the drainage pipe. The other end of the fixed block has a rotating groove in which a movable block is rotatably connected. A first motor is fixed to the top of the fixed block, and the output shaft of the first motor is fixed to the rotating shaft of the fixed block. The end of the movable block away from the fixed block has a docking hole, and a flexible hose is fixedly connected between the docking hole and the drainage pipe. Specifically, the dosing cylinder is fixed inside the sewage treatment tank, the sewage inlet pipe is fixedly connected to the liquid inlet pipe, and the dosing inlet pipe is fixedly connected to the dosing pipe, so that the chemical solution and sewage flow into the dosing cylinder. The dosage control is existing technology and will not be elaborated on here. Because the inlet pipe is tangent to the inner wall of the dosing cylinder, the liquid will flow along the arc-shaped surface of the inner wall of the dosing cylinder during liquid injection and form a swirling flow. Under the action of the swirling flow, the centrifugal force and shear force generated by the swirling flow can break the laminar flow state of the fluid, allowing the agent and sewage to quickly undergo turbulent mixing in the buffer tank. After the sewage forms a vortex, part of the sewage is discharged from the drain pipe, while the rest continues to move and mix inside the dosing cylinder. A flexible hose is fixed to the end of the drain pipe, and an adjusting component is installed on the hose. This component adjusts the orientation of the other end of the hose, thus regulating the drainage direction. For example, starting the first motor can drive a movable block to rotate within a fixed block. This movable block moves one end of the hose, causing the hose to bend. When the drainage direction is the same as the vortex direction, the hose provides minimal resistance to the sewage, ensuring rapid discharge from the dosing cylinder. When the drainage direction is opposite to the vortex direction, the outflow directly opposes the tangential direction of the vortex, increasing drainage resistance and slowing the sewage discharge. Simultaneously, the opposing force consumes the kinetic energy of the vortex, reducing the vortex speed within the dosing cylinder. It should be noted that an online concentration monitor is fixedly installed inside the dosing cylinder, and a controller, such as a turbidity meter and a PLC controller, is fixed on the outer wall of the dosing cylinder. The turbidity value is collected in real time by the turbidity meter and sent to the PLC controller. The PLC controller's built-in program compares the turbidity value with a threshold. This is existing technology and will not be elaborated on here. When the turbidity value is lower than the turbidity threshold, the water quality is considered good. The swirling speed should be slowed down to prolong the residence time of the wastewater and the agent in the dosing cylinder, so that the agent and wastewater are slowly mixed, which is both uniform and does not break up the flocs. When the turbidity value is higher than or equal to the threshold, the water quality is considered poor. The swirling speed should be increased. Strong swirling can tear apart the impurity clumps, allowing the agent to fully contact the pollutants. The rapid discharge can also carry away the impurities in time, preventing the impurities from accumulating in the dosing cylinder.

[0006] Preferably, it further includes: a flow rate sensor, which is fixed on the inner wall of the dosing cylinder, and the flow rate sensor is used to detect the swirling velocity value inside the dosing cylinder; The controller is fixed on the outer wall of the dosing cylinder. The controller is used to compare the acquired swirling velocity value with a velocity threshold. When the swirling velocity value reaches the threshold, the controller controls the first motor to stop rotating.

[0007] Specifically, the speed threshold includes a preset first speed threshold and a second speed threshold. The first speed threshold is less than the second speed threshold. The swirling speed value in the dosing cylinder is monitored in real time by a flow velocity sensor. When the water quality improves, the controller controls the first motor to rotate until the swirling speed reaches the first speed threshold. At this time, the first motor stops rotating, and the swirling speed slows down, which can prolong the residence time of sewage and chemical in the dosing cylinder, so that the chemical and sewage are slowly mixed, which is both uniform and does not break the flocs. When the water quality deteriorates, the controller controls the first motor to rotate in the opposite direction until the swirling speed reaches the second speed threshold. At this point, the first motor stops rotating. The swirling speed increases, and the strong swirling can tear apart the impurity clumps, allowing the reagent to fully contact the pollutants. The discharge direction is the same as the tangential direction of the swirling, which allows the wastewater to be discharged quickly and the impurities to be carried away in time, preventing the impurities from accumulating in the dosing cylinder.

[0008] Preferably, a flow guide is installed on the inner wall of the dosing cylinder via a connecting assembly. The flow guide is located at the end of the drain pipe, with an inlet at one end. A through mounting groove is provided on the outer wall of the flow guide, and a barrier net is fixed inside the mounting groove.

[0009] Specifically, by installing a flow guide at the end of the drain pipe, after sewage and impurities enter from the inlet, the impurities are blocked by the barrier net. Under the action of water flow, they can be flushed into the interior of the drain pipe, thereby accelerating the discharge of impurities and reducing the residence time of impurities in the dosing cylinder. The water flow can directly pass through the barrier net, thereby reducing the overall obstruction effect of the flow guide on the vortex and ensuring the stability of the vortex.

[0010] Preferably, the connecting assembly includes a connecting cylinder, which is fixed to the drain pipe by a bracket. An electric actuator is fixed inside the connecting cylinder, and a push rod is rotatably connected to the top of the movable end of the electric actuator. The top of the push rod is fixed to the guide shroud. A sealing ring is fixed on the inner wall of the connecting cylinder, and the sealing ring contacts the surface of the push rod. A guide assembly is provided inside the connecting cylinder to guide the push rod to rise first and then rotate.

[0011] Preferably, the guide assembly includes a vertical groove and an inclined groove, both of which are formed on the inner wall of the connecting cylinder. The inclined groove is positioned above the vertical groove, and the top of the vertical groove communicates with the bottom of the inclined groove. A guide pin is inserted into the vertical groove, and the other end of the guide pin is fixed to the push rod.

[0012] Preferably, the guide pin includes a fixed cylinder and a movable pin. The fixed cylinder is fixed to the outer wall of the push rod, the movable pin is inserted into the fixed cylinder, a spring is fixed between the movable pin and the inner wall of the fixed cylinder, and the bottom of the vertical groove has a disassembly slope.

[0013] Preferably, the inner wall of the flow guide has an arc-shaped slope, and the shape of the barrier mesh is adapted to the inner wall of the flow guide.

[0014] Preferably, a groove is formed on the bottom surface of the dosing cylinder, an air bag is fixed inside the groove, an air pump is fixed at the bottom of the dosing cylinder, and the air pump's air delivery pipe is fixedly connected to the air bag.

[0015] Preferably, the outer side of the hose is covered with a protective sleeve, which is made of metal braided mesh.

[0016] Preferably, a spiral plate is fixed on the inner wall of the dosing cylinder, and the top surface of the spiral plate is provided with a guide slope facing the inner wall of the dosing cylinder.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention makes the inlet pipe tangent to the inner wall of the dosing cylinder. When the liquid is introduced, the liquid will flow along the arc-shaped surface of the inner wall of the dosing cylinder and form a swirling flow. Under the action of the swirling flow, the centrifugal force and shear force generated by the swirling flow can break the laminar flow state of the fluid, allowing the agent and the sewage to quickly undergo turbulent mixing in the buffer tank, thus promoting the mixing effect.

[0018] 2. In this invention, after the sewage forms a vortex, part of the sewage is discharged from the drain pipe, while the remaining sewage continues to move and mix inside the dosing cylinder. A flexible hose is fixed to the end of the drain pipe, and an adjusting component is installed on the hose. This adjusting component adjusts the orientation of the other end of the hose, thereby regulating the drainage direction. For example, starting the first motor can drive a movable block to rotate within a fixed block. The movable block then moves one end of the hose, causing the hose to bend. When the drainage direction is the same as the vortex direction, the hose provides minimal resistance to the sewage, ensuring rapid discharge from the dosing cylinder. When the drainage direction is opposite to the vortex direction, the outflow directly opposes the tangential direction of the vortex, increasing drainage resistance and slowing the sewage discharge. Simultaneously, the opposing force consumes the vortex's kinetic energy, reducing the vortex speed within the dosing cylinder. Furthermore, with only one bend in the hose, even minor blockages can be automatically cleared by the rapid water flow after subsequent rotation.

[0019] 3. When the water quality is good, the present invention slows down the swirling speed and prolongs the residence time of sewage and chemicals in the dosing cylinder, so that the chemicals and sewage are slowly mixed, which is both uniform and does not break the flocs. When the water quality is poor, the swirling speed can be accelerated. The strong swirling can tear apart the impurity clumps, so that the chemicals can fully contact the pollutants. In addition, the rapid discharge can carry away the impurities in time, avoiding the accumulation of impurities in the dosing cylinder, which would lead to the enrichment of impurities during the subsequent full discharge. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0023] Figure 3 This is a schematic diagram of the dosing cartridge structure of the present invention.

[0024] Figure 4 This is a schematic diagram of the overall cross-sectional structure of the present invention.

[0025] Figure 5 This is a schematic diagram of the fixed block and movable block structure of the present invention.

[0026] Figure 6 This is a schematic cross-sectional view of the fixed block and movable block of the present invention.

[0027] Figure 7 This is a schematic cross-sectional view of the connecting cylinder structure of the present invention. Figure 1 .

[0028] Figure 8 This is a schematic diagram of the cross-sectional structure of the guide pin of the present invention.

[0029] Figure 9 This is a schematic cross-sectional view of the connecting cylinder structure of the present invention. Figure 2 .

[0030] In the diagram: 1. Dosing cylinder; 2. Inlet pipe; 3. Inlet tube; 4. Drain pipe; 5. Fixing block; 6. Slot; 7. Rotating groove; 8. Movable block; 9. First motor; 10. Connecting hole; 11. Hose; 13. Controller; 14. Flow sensor; 15. Flow guide; 16. Inlet; 17. Mounting groove; 18. Barrier net; 19. Connecting cylinder; 20. Bracket; 21. Electric push rod; 22. Push rod; 23. Sealing ring; 24. Vertical groove; 25. Inclined groove; 26. Guide pin; 27. Fixing cylinder; 28. Movable pin; 29. ​​Spring; 31. Groove; 32. Airbag; 33. Air pump; 34. Protective sleeve; 35. Spiral plate. Detailed Implementation

[0031] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0032] like Figures 1 to 9 An integrated dosing device for wastewater treatment chemicals is shown, including a dosing cylinder 1, and further comprising: Inlet pipe 2 is fixed on the outer wall of the dosing cylinder 1. One end of the inlet pipe 2 is connected to the inside of the dosing cylinder 1 and is tangent to the inner wall of the dosing cylinder 1. Inlet pipe 3 is fixedly connected to the side wall of the inlet pipe 2. Multiple drain pipes 4 are fixed to the side wall of the dosing cylinder 1; An adjustment component is used to adjust the direction of drainage. The adjustment component includes a fixed block 5, which is fixed on the outer wall of the dosing cylinder 1. One end of the fixed block 5 has a slot 6, which is sleeved on the outside of the drainage pipe 4. The other end of the fixed block 5 has a rotating groove 7, in which a movable block 8 is rotatably connected. A first motor 9 is fixed on the top of the fixed block 5. The output shaft of the first motor 9 is fixed to the rotating shaft of the fixed block 5. The end of the movable block 8 away from the fixed block 5 has a docking hole 10, and a hose 11 is fixedly connected between the docking hole 10 and the drainage pipe 4. Specifically, the dosing cylinder 1 is fixed inside the sewage treatment tank, the sewage inlet pipe is fixedly connected to the liquid inlet pipe 2, and the dosing inlet pipe is fixedly connected to the dosing pipe 3, so that the chemical solution and sewage flow into the dosing cylinder 1. The dosage control is existing technology and will not be described in detail here. Since the inlet pipe 2 is tangent to the inner wall of the dosing cylinder 1, when the liquid is injected, the liquid will flow along the arc-shaped surface of the inner wall of the dosing cylinder 1 and form a swirling flow. Under the action of the swirling flow, the centrifugal force and shear force generated by the swirling flow can break the laminar flow state of the fluid, allowing the agent and the sewage to quickly undergo turbulent mixing in the buffer tank. After the sewage forms a vortex, some sewage is discharged from the drain pipe 4, while the remaining sewage continues to move and mix inside the dosing cylinder 1. A flexible hose 11 is fixed to the end of the drain pipe, and an adjusting component is installed on the hose 11. This adjusting component adjusts the orientation of the other end of the hose 11, thereby adjusting the drainage direction. For example, starting the first motor 9 can drive the movable block 8 to rotate within the fixed block 5. The movable block 8 moves one end of the hose 11, causing the hose 11 to bend. When the drainage direction is the same as the vortex direction, the hose 11 has minimal obstruction to the sewage, ensuring rapid discharge of the sewage from the dosing cylinder 1. When the drainage direction is opposite to the vortex direction, the outflow directly impacts the tangential direction of the vortex, increasing drainage resistance and slowing the sewage discharge speed. Simultaneously, the impact consumes the vortex's kinetic energy, reducing the vortex speed within the dosing cylinder 1. Furthermore, the hose 11 has only one bend; even if a minor blockage occurs, it can be automatically cleared by the rapid water flow impact after subsequent rotation. It should be noted that, as an optional implementation, an online concentration monitor 12 is fixedly installed inside the dosing cylinder 1, and a controller 13, such as a turbidity meter and a PLC controller 13, is fixed on the outer wall of the dosing cylinder 1. The turbidity value is collected in real time by the turbidity meter and sent to the PLC controller 13. The built-in program of the PLC controller 13 compares the turbidity value with the threshold. This is existing technology and will not be elaborated on here. When the turbidity value is lower than the turbidity threshold, the water quality is determined to be good. The swirling speed should be slowed down to prolong the residence time of the sewage and the agent in the dosing cylinder 1, so that the agent and sewage are slowly mixed, which is both uniform and does not break the flocs. When the turbidity value is higher than or equal to the threshold, the water quality is determined to be poor. The swirling speed should be accelerated. Strong swirling can tear apart the impurity clumps, so that the agent can fully contact the pollutants. The rapid discharge can also carry away the impurities in time, avoiding the accumulation of impurities in the dosing cylinder 1, which would lead to the enrichment of impurities during subsequent full discharge.

[0033] As a further embodiment of the present invention, it also includes: Flow rate sensor 14 is fixed on the inner wall of the dosing cylinder 1 and is used to detect the swirling velocity value inside the dosing cylinder 1. The controller 13 is fixed on the outer wall of the dosing cylinder 1. The controller 13 is used to compare the acquired swirling velocity value with the velocity threshold. When the swirling velocity value reaches the threshold, the controller controls the first motor 9 to stop rotating.

[0034] Specifically, the speed threshold includes a preset first speed threshold and a second speed threshold. The first speed threshold is less than the second speed threshold. The flow rate sensor 14 monitors the swirling speed value in the dosing cylinder 1 in real time. When the water quality improves, the controller 13 controls the first motor 9 to rotate until the swirling speed reaches the first speed threshold. Then, the controller controls the first motor 9 to stop rotating. At this time, the swirling speed slows down, which can prolong the residence time of sewage and chemicals in the dosing cylinder 1, so that the chemicals and sewage are slowly mixed, which is both uniform and does not break the flocs. When the water quality deteriorates, the controller 13 controls the first motor 9 to rotate in the opposite direction until the swirling speed reaches the second speed threshold. At this time, the first motor 9 stops rotating. The swirling speed increases, and the strong swirling can tear apart the impurity clumps, allowing the agent to fully contact the pollutants. The discharge direction is the same as the tangential direction of the swirling, so that the sewage is discharged quickly and the impurities are carried away in time, avoiding the accumulation of impurities in the dosing cylinder 1.

[0035] As a further embodiment of the present invention, a flow guide 15 is installed on the inner wall of the dosing cylinder 1 by means of a connecting assembly. The flow guide 15 is located at the end of the drain pipe 4. An inlet 16 is opened at one end of the flow guide 15. A through mounting groove 17 is opened on the outer wall of the flow guide 15. A barrier net 18 is fixed in the mounting groove 17.

[0036] Specifically, by setting a guide hood 15 at the end of the drain pipe 4, after sewage and impurities enter from the inlet 16, the impurities are blocked by the barrier net 18. Under the action of water flow, they can be flushed into the interior of the drain pipe 4, thereby accelerating the discharge of impurities and reducing the residence time of impurities in the dosing cylinder 1. The water flow can directly pass through the barrier net 18, thereby reducing the overall obstruction effect of the guide hood 15 on the swirling flow and ensuring the stability of the swirling flow.

[0037] As a further embodiment of the present invention, the connecting assembly includes a connecting cylinder 19, which is fixed to the drain pipe 4 by a bracket 20. An electric push rod 21 is fixed inside the connecting cylinder 19. A push rod 22 is rotatably connected to the top of the movable end of the electric push rod 21. The top of the push rod 22 is fixed to the guide cover 15. A sealing ring 23 is fixed on the inner wall of the connecting cylinder 19. The sealing ring 23 is in contact with the surface of the push rod 22. A guide assembly is provided inside the connecting cylinder 19 to guide the push rod 22 to rise first and then rotate.

[0038] As a further embodiment of the present invention, the guide assembly includes a vertical groove 24 and an inclined groove 25. Both the vertical groove 24 and the inclined groove 25 are formed on the inner wall of the connecting cylinder 19. The inclined groove 25 is disposed above the vertical groove 24. The top of the vertical groove 24 is connected to the bottom of the inclined groove 25. A guide pin 26 is inserted into the vertical groove 24. The other end of the guide pin 26 is fixed to the push rod 22.

[0039] Specifically, after adjusting the discharge direction of the hose 11 to be opposite to the tangential direction of the swirl, both the swirl speed and the impurity discharge speed are slowed down. In order to avoid impurities accumulating in the hose 11 and causing the hose 11 to become blocked, the present invention activates the electric push rod 21. The movable end of the electric push rod 21 pushes the push rod 22 upward, and the push rod 22 pushes the guide shroud 15 upward, so that the guide shroud 15 is away from the end of the drain pipe 4, so that the guide shroud 15 fails to guide the convergence of impurities, thereby avoiding the situation where a large number of impurities enter the drain pipe 4 at the same time, which helps to reduce the blockage inside the hose 11. The electric actuator 21 can be powered by threading a wire through a hole in the bracket 20 to connect to an external power source. This is existing technology and will not be described in detail here. As the push rod 22 moves upward, the guide pin 26 on the side wall of the push rod 22 first slides in the vertical groove 24 and moves in a straight line. When the guide pin 26 leaves the vertical groove 24 and enters the inclined groove 25, under the guidance of the inclined groove 25 and the guide pin 26, the push rod 22 can rotate synchronously during the upward movement, thereby driving the flow guide shroud 15 to rotate. During the process, the push rod 22 is pushed and pulled by the electric push rod 21, so that the guide pin 26 slides up and down in the inclined groove 25, thereby enabling the flow guide shroud 15 to rotate back and forth. After the flow guide shroud 15 rotates, the impact direction of the water flow on the barrier net 18 will change. Through the impact of water flow in different directions, the adhesion between impurities and the barrier net can be reduced, thereby ensuring the stable use of the barrier net in the future.

[0040] As a further embodiment of the present invention, the guide pin 26 includes a fixed cylinder 27 and a movable pin 28. The fixed cylinder 27 is fixed on the outer wall of the push rod 22, the movable pin 28 is inserted into the fixed cylinder 27, and a spring 29 is fixed between the movable pin 28 and the inner wall of the fixed cylinder 27. The bottom of the vertical groove 24 has a disassembly slope.

[0041] Specifically, during installation, the movable pin 28 is pushed into the fixed cylinder 27 while the push rod 22 is inserted into the connecting cylinder 19. When the movable pin 28 moves into the vertical groove 24, it will automatically insert into the vertical groove 24 under the pushing action of the spring 29, thus completing the installation. The bottom of the vertical groove 24 has a disassembly ramp. During disassembly, the movable pin 28 is slid out of the vertical groove 24 along the disassembly ramp by pulling down the push rod 22, which facilitates subsequent disassembly.

[0042] As a further embodiment of the present invention, the inner wall of the flow guide 15 has an arc-shaped slope, and the shape of the barrier net 18 is adapted to the inner wall of the flow guide 15.

[0043] Specifically, the guide shroud 15 is provided with an arc-shaped inclined surface. When impurities come into contact with the barrier net 18, the inclined surface guides them to move into the drain pipe 4. When the guide shroud 15 is separated from the drain pipe 4 and rotates, the inclined surface faces the swirling direction, which also prevents impurities from sticking.

[0044] As a further embodiment of the present invention, a groove 31 is provided on the bottom surface of the dosing cylinder 1, an air bag 32 is fixed inside the groove 31, and an air pump 33 is fixed at the bottom of the dosing cylinder 1. The air supply pipe of the air pump 33 is fixedly connected to the air bag 32.

[0045] Specifically, when the swirling speed slows down, the air pump 33 is activated to draw gas from the air bag 32, causing the air bag 32 to contract and become constricted, exposing the groove 31. Under the action of swirling, some of the separated impurities will be guided into the groove 31 for temporary storage, thereby reducing the total amount of impurities entering the drain pipe 4 and reducing the probability of the drain pipe 4 becoming blocked due to impurity accumulation from the source. When the swirling speed increases, the air pump 33 is activated to inflate the air bladder 32, causing the air bladder 32 to expand and form an arc-shaped protrusion at the bottom of the dosing cylinder 1. This arc-shaped protrusion can work synergistically with the centrifugal force of the swirling flow to guide and push the impurities that have settled at the bottom of the dosing cylinder 1 towards the cylinder wall, bringing them closer to the inlet of the drain pipe 4. Combined with the strong wall-adhering water flow generated by the high-speed swirling flow, the impurities can be quickly carried into the drain pipe 4, thereby preventing a large amount of impurities from accumulating at the bottom of the dosing cylinder 1.

[0046] As a further embodiment of the present invention, a protective sleeve 34 is provided on the outer side of the hose 11, and the protective sleeve 34 is made of metal braided mesh.

[0047] Specifically, a protective sleeve 34 made of metal braided mesh is fitted over the outside of the hose 11. This not only significantly improves the tensile and bending strength of the hose 11, preventing cracking and delamination during repeated adjustments of the drainage direction, thus extending its service life in sewage media, but also prevents large suspended particles from adhering directly to the outer wall of the hose 11, reducing the accumulation of impurities in the gap between the hose 11 and the installation structure. Furthermore, it moderately constrains the deformation of the hose 11, ensuring a relatively uniform curvature change when changing the drainage direction, preventing excessive bulging or depression in certain areas, thereby maintaining smooth water flow and indirectly reducing the probability of impurities lingering inside the pipe. In addition, the excellent corrosion resistance of the metal braided mesh effectively isolates the corrosive components in the sewage from eroding the inner material of the hose 11, ensuring stable operation of the hose 11 under harsh conditions.

[0048] As a further embodiment of the present invention, a spiral plate 35 is fixed on the inner wall of the dosing cylinder 1, and the top surface of the spiral plate 35 is provided with a guide slope facing the inner wall of the dosing cylinder 1.

[0049] Specifically, by setting the spiral plate 35, it is beneficial to enhance the swirling effect of sewage, and the guide slope can guide the water flow along the cylinder wall after the sewage enters the dosing cylinder 1, so that the water flow can form a stable swirling field more quickly and improve the mixing uniformity.

[0050] Working principle: The dosing cylinder 1 is fixed inside the sewage treatment tank. The sewage inlet pipe is fixedly connected to the liquid inlet pipe 2, and the dosing inlet pipe is fixedly connected to the dosing inlet pipe 3, so that the liquid and sewage flow together into the dosing cylinder 1. Since the liquid inlet pipe 2 is tangent to the inner wall of the dosing cylinder 1, the liquid will flow along the arc-shaped surface of the inner wall of the dosing cylinder 1 during the injection, forming a swirling flow. Under the action of the swirling flow, the centrifugal force and shear force generated by the swirling flow can break the laminar flow state of the fluid, allowing the agent and sewage to quickly undergo turbulent mixing in the buffer tank. After the sewage forms a swirling flow, part of the sewage is discharged from the drain pipe 4, and part of the sewage continues to move and mix inside the dosing cylinder 1. The end of the drain pipe is fixed with a flexible hose 1. 1. An adjustment component is provided on the hose 11. The adjustment component adjusts the orientation of the other end of the hose 11, thereby adjusting the drainage direction. For example, by starting the first motor 9, the movable block 8 can be driven to rotate within the fixed block 5. The movable block 8 drives one end of the hose 11 to move, causing the hose 11 to bend as a whole. When the drainage direction is the same as the swirling direction, the hose 11 has a small obstruction effect on the sewage, which can ensure that the sewage in the dosing cylinder 1 is discharged quickly. When the drainage direction is opposite to the swirling direction, the outflow and the tangent direction of the swirling flow directly collide, which increases the drainage resistance and slows down the discharge speed of the sewage. At the same time, the collision effect consumes the swirling kinetic energy, which reduces the swirling speed in the dosing cylinder 1. An online concentration monitor 12 is fixedly installed inside the dosing cylinder 1, and a controller 13, such as a turbidity meter and a PLC controller 13, is fixed on the outer wall of the dosing cylinder 1. The turbidity value is collected in real time by the turbidity meter and sent to the PLC controller 13. The built-in program of the PLC controller 13 compares the turbidity value with the threshold. This is existing technology and will not be elaborated on here. When the turbidity value is lower than the turbidity threshold, the water quality is determined to be good. The swirling speed should be slowed down to prolong the residence time of the sewage and the agent in the dosing cylinder 1, so that the agent and sewage are slowly mixed, which is both uniform and does not break the flocs. When the turbidity value is higher than or equal to the threshold, the water quality is determined to be poor. The swirling speed should be increased. Strong swirling can tear apart the impurity clumps, so that the agent can fully contact the pollutants. The fast discharge can also carry away the impurities in time, avoiding the accumulation of impurities in the dosing cylinder 1.

[0051] The speed threshold includes a preset first speed threshold and a second speed threshold. The first speed threshold is less than the second speed threshold. The flow rate sensor 14 monitors the swirling speed value in the dosing cylinder 1 in real time. When the water quality improves, the controller 13 controls the first motor 9 to rotate until the swirling speed reaches the first speed threshold. Then, the controller 13 controls the first motor 9 to stop rotating. At this time, the swirling speed slows down, which can prolong the residence time of sewage and chemicals in the dosing cylinder 1, so that the chemicals and sewage are slowly mixed, which is both uniform and does not break the flocs. When the water quality deteriorates, the controller 13 controls the first motor 9 to rotate in the opposite direction until the swirling speed reaches the second speed threshold. At this time, the first motor 9 stops rotating. The swirling speed increases, and the strong swirling can tear apart the impurity clumps, allowing the agent to fully contact the pollutants. The discharge direction is the same as the tangential direction of the swirling, so that the sewage is discharged quickly and the impurities are carried away in time, avoiding the accumulation of impurities in the dosing cylinder 1.

[0052] By setting a guide hood 15 at the end of the drain pipe 4, after sewage and impurities enter from the inlet 16, the impurities are blocked by the barrier net 18. Under the action of water flow, they can be flushed into the interior of the drain pipe 4, thereby accelerating the discharge of impurities and reducing the residence time of impurities in the dosing cylinder 1. The water flow can directly pass through the barrier net 18, thereby reducing the overall obstruction effect of the guide hood 15 on the swirling flow and ensuring the stability of the swirling flow.

[0053] After adjusting the discharge direction of the hose 11 to be opposite to the tangential direction of the swirl, both the swirl speed and the impurity discharge speed are slowed down. In order to avoid impurities accumulating in the hose 11 and causing the hose 11 to become blocked, the present invention activates the electric push rod 21. The movable end of the electric push rod 21 pushes the push rod 22 upward, and the push rod 22 pushes the guide shroud 15 upward, so that the guide shroud 15 is away from the end of the drain pipe 4, so that the guide shroud 15 fails to guide the convergence of impurities, thereby avoiding the situation where a large number of impurities enter the drain pipe 4 at the same time, which helps to reduce the blockage inside the hose 11. As the push rod 22 moves upward, the guide pin 26 on the side wall of the push rod 22 first slides in the vertical groove 24 and moves in a straight line. When the guide pin 26 leaves the vertical groove 24 and enters the inclined groove 25, under the guidance of the inclined groove 25 and the guide pin 26, the push rod 22 can rotate synchronously during the upward movement, thereby driving the flow guide shroud 15 to rotate. During the process, the push rod 22 is pushed and pulled by the electric push rod 21, so that the guide pin 26 slides up and down in the inclined groove 25, thereby enabling the flow guide shroud 15 to rotate back and forth. After the flow guide shroud 15 rotates, the impact direction of the water flow on the barrier net 18 will change. Through the impact of water flow in different directions, the adhesion between impurities and the barrier net can be reduced, thereby ensuring the stable use of the barrier net in the future.

[0054] During installation, the movable pin 28 is pushed into the fixed cylinder 27 while the push rod 22 is inserted into the connecting cylinder 19. When the movable pin 28 moves into the vertical groove 24, it will automatically insert into the vertical groove 24 under the pushing action of the spring 29, thus completing the installation. The bottom of the vertical groove 24 has a disassembly ramp. During disassembly, the movable pin 28 is slid out of the vertical groove 24 along the disassembly ramp by pulling down the push rod 22, which facilitates subsequent disassembly.

[0055] An arc-shaped inclined surface is provided inside the flow guide shroud 15. When impurities come into contact with the barrier net 18, the inclined surface guides them to move into the drain pipe 4. When the flow guide shroud 15 is separated from the drain pipe 4 and rotates, the inclined surface faces the swirling direction, which also prevents impurities from sticking.

[0056] When the swirling speed slows down, the air pump 33 is activated to draw gas from the air bag 32, causing the air bag 32 to contract and become constricted, exposing the groove 31. Under the action of swirling, some of the separated impurities will be guided into the groove 31 for temporary storage, thereby reducing the total amount of impurities entering the drain pipe 4 and reducing the probability of the drain pipe 4 becoming blocked due to impurity accumulation from the source. When the swirling speed increases, the air pump 33 is activated to inflate the air bladder 32, causing the air bladder 32 to expand and form an arc-shaped protrusion at the bottom of the dosing cylinder 1. This arc-shaped protrusion can work synergistically with the centrifugal force of the swirling flow to guide and push the impurities that have settled at the bottom of the dosing cylinder 1 towards the cylinder wall, bringing them closer to the inlet of the drain pipe 4. Combined with the strong wall-adhering water flow generated by the high-speed swirling flow, the impurities can be quickly carried into the drain pipe 4, thereby preventing a large amount of impurities from accumulating at the bottom of the dosing cylinder 1.

[0057] A protective sleeve 34 made of metal braided mesh is fitted over the outside of the hose 11. This not only significantly improves the tensile and bending strength of the hose 11, preventing cracking and delamination during repeated adjustments of the drainage direction, thus extending its service life in sewage media, but also prevents large suspended particles from adhering directly to the outer wall of the hose 11, reducing the accumulation of impurities in the gap between the hose 11 and the installation structure. Furthermore, it moderately constrains the deformation of the hose 11, ensuring a relatively uniform curvature change when changing the drainage direction, preventing excessive bulging or depression in certain areas, thereby maintaining smooth water flow and indirectly reducing the probability of impurities lingering inside the pipe. In addition, the excellent corrosion resistance of the metal braided mesh effectively isolates the corrosive components in the sewage from eroding the inner material of the hose 11, ensuring stable operation of the hose 11 under harsh conditions.

[0058] Setting up the spiral plate 35 helps to enhance the swirling effect of the sewage, and the guide slope can guide the water flow along the cylinder wall after the sewage enters the dosing cylinder 1, so that the water flow can form a stable swirling field more quickly and improve the mixing uniformity.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An integrated dosing device for wastewater treatment agents, comprising a dosing cylinder (1), characterized in that, Also includes: Inlet pipe (2), the inlet pipe (2) is fixed on the outer wall of the dosing cylinder (1), one end of the inlet pipe (2) is connected to the inside of the dosing cylinder (1) and is tangent to the inner wall of the dosing cylinder (1), and an inlet pipe (3) is fixedly connected to the side wall of the inlet pipe (2). Multiple drain pipes (4) are fixed to the side wall of the dosing cylinder (1); An adjustment component is used to adjust the direction of drainage. The adjustment component includes a fixed block (5), which is fixed on the outer wall of the dosing cylinder (1). One end of the fixed block (5) is provided with a slot (6), which is sleeved on the outside of the drainage pipe (4). The other end of the fixed block (5) is provided with a rotating groove (7), in which a movable block (8) is rotatably connected. A first motor (9) is fixed on the top of the fixed block (5). The output shaft of the first motor (9) is fixed to the rotating shaft of the fixed block (5). The end of the movable block (8) away from the fixed block (5) is provided with a docking hole (10), and a hose (11) is fixedly connected between the docking hole (10) and the drainage pipe (4). A flow guide (15) is installed on the inner wall of the dosing cylinder (1) via a connecting assembly. The flow guide (15) is located at the end of the drain pipe (4). An inlet (16) is opened at one end of the flow guide (15). A through mounting groove (17) is opened on the outer wall of the flow guide (15). A barrier net (18) is fixed in the mounting groove (17). The connecting assembly includes a connecting cylinder (19), which is fixed to the drain pipe (4) by a bracket (20). An electric push rod (21) is fixed inside the connecting cylinder (19). A push rod (22) is rotatably connected to the top of the movable end of the electric push rod (21). The top of the push rod (22) is fixed to the flow guide (15). A sealing ring (23) is fixed on the inner wall of the connecting cylinder (19). The sealing ring (23) is in contact with the surface of the push rod (22). A guide assembly is provided inside the connecting cylinder (19). The guide assembly is used to guide the push rod (22) to rise first and then rotate. The guide assembly includes a vertical groove (24) and an inclined groove (25). Both the vertical groove (24) and the inclined groove (25) are opened on the inner wall of the connecting cylinder (19). The inclined groove (25) is located above the vertical groove (24). The top of the vertical groove (24) is connected to the bottom of the inclined groove (25). A guide pin (26) is inserted into the vertical groove (24). The other end of the guide pin (26) is fixed to the push rod (22).

2. The integrated dosing device for wastewater treatment agents according to claim 1, characterized in that, Also includes: A flow rate sensor (14) is fixed on the inner wall of the dosing cylinder (1) and is used to detect the swirling velocity value inside the dosing cylinder (1). The controller (13) is fixed on the outer wall of the dosing cylinder (1). The controller (13) is used to compare the obtained swirling velocity value with the velocity threshold. When the swirling velocity value reaches the threshold, the first motor (9) is controlled to stop rotating.

3. The integrated dosing device for wastewater treatment chemicals according to claim 1, characterized in that, The guide pin (26) includes a fixed cylinder (27) and a movable pin (28). The fixed cylinder (27) is fixed on the outer wall of the push rod (22). The movable pin (28) is inserted into the fixed cylinder (27). A spring (29) is fixed between the movable pin (28) and the inner wall of the fixed cylinder (27). The bottom of the vertical groove (24) has a disassembly slope.

4. The integrated dosing device for wastewater treatment agents according to claim 1, characterized in that, The inner wall of the flow guide (15) has an arc-shaped slope, and the shape of the barrier net (18) is adapted to the inner wall of the flow guide (15).

5. The integrated dosing device for wastewater treatment agents according to claim 1, characterized in that, The bottom surface of the dosing cylinder (1) is provided with a groove (31), an air bag (32) is fixed inside the groove (31), and an air pump (33) is fixed at the bottom of the dosing cylinder (1). The air supply pipe of the air pump (33) is fixedly connected to the air bag (32).

6. The integrated dosing device for wastewater treatment agents according to claim 1, characterized in that, The outer side of the hose (11) is fitted with a protective sleeve (34), which is made of metal braided mesh.

7. The integrated dosing device for wastewater treatment agents according to claim 1, characterized in that, A spiral plate (35) is fixed on the inner wall of the dosing cylinder (1), and the top surface of the spiral plate (35) is provided with a guide slope facing the inner wall of the dosing cylinder (1).

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