Dosing device for sewage treatment equipment and use method of dosing device

Abstract

The invention belongs to the technical field of sewage treatment, and provides a dosing device for sewage treatment equipment and a use method thereof.The device comprises a shell, a through hole is formed in the top of the shell, and a first rotating power part is fixedly installed at the bottom of the shell and drives stirring blades in the shell to rotate; a vertical plate is slidably mounted on the top wall of the shell, a first telescopic part for driving the vertical plate to move up and down is fixedly mounted on the shell, and a first dosing pipe is arranged on the vertical plate. Compared with the prior art, the sewage treatment device has the beneficial effects that when the rotating speed of the first chemical adding pipe is changed, the rotating angle of the second chemical adding pipe is also changed, so that the chemical outlet end of the second chemical adding pipe can move in different positions in the shell, chemical liquid can be added into different positions in sewage, and the sewage treatment effect is improved. The diffusion speed of the liquid medicine in the sewage is accelerated, and the sewage treatment time is shortened.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment, and particularly relates to a chemical dosing device for sewage treatment equipment and a using method thereof. Background Art

[0002] In the process of sewage treatment, when industrial sewage is purified, impurity removal and purification treatment are adopted to make the water source meet the safety discharge standard, reduce the impact of industrial wastewater on drinking water resources, and provide a safe and reliable quality guarantee for people's domestic water. For ordinary sewage, it can be safely discharged after filtration and purification. For some industrial sewage containing chemical components, chemical dosing and mixing treatment are required.

[0003] Most existing sewage treatment processes require the addition of multiple chemicals, and the order and time of chemical addition need to be restricted to avoid the reaction between different chemicals affecting the sewage treatment effect. Most existing sewage treatment equipment directly pours the chemicals into the sewage during chemical dosing. As a result, all the chemicals are added to the top area of the sewage, and it takes a long time for the chemicals to diffuse and mix fully with the sewage, greatly increasing the time-consuming of sewage treatment and reducing the sewage treatment effect. Summary of the Invention

[0004] The purpose of the present invention is to provide a chemical dosing device for sewage treatment equipment and a using method thereof, aiming to solve the technical problem that in the prior art, it takes a long time for the chemicals to mix fully with the sewage, reducing the sewage treatment effect.

[0005] The present invention is realized as follows: A chemical dosing device for sewage treatment equipment includes a housing with a through hole opened at the top. A first rotary power member is fixedly installed at the bottom of the housing, and the first rotary power member drives a stirring blade inside the housing to rotate.

[0006] A vertical plate is slidably installed on the top wall of the housing, and a first telescopic member for driving the vertical plate to move up and down is fixedly installed on the housing. A first chemical dosing pipe is arranged on the vertical plate, and the first chemical dosing pipe is coaxially arranged with the through hole. A medicine flowing hole is arranged at one end of the first chemical dosing pipe away from the through hole. Two symmetrically distributed second chemical dosing pipes are rotatably installed at one end of the first chemical dosing pipe away from the through hole. The second chemical dosing pipes are communicated with the first chemical dosing pipe through a connecting hose. Symmetrically distributed limiting frames are fixedly installed on the first chemical dosing pipe, and limiting plates are slidably installed inside the limiting frames. One end of the limiting plate is fixedly connected to the corresponding second chemical dosing pipe. A chemical dosing assembly for conveying liquid medicine into the first chemical dosing pipe is arranged on the top of the housing.

[0007] Further technical solution: A connecting head is rotatably installed at one end of the first chemical dosing pipe close to the through hole, and the connecting head passes through the through hole when the first chemical dosing pipe moves upward.

[0008] Further technical solution: The chemical dosing component includes a bracket and multiple groups of cartridges. The bracket is fixedly installed at the top of the housing. An expansion rod pointing to the housing is fixedly installed on the bracket. One end of the expansion rod close to the housing is fixedly installed with a cover plate. A first elastic member is fixedly installed on the cover plate. The end of the first elastic member away from the cover plate is fixedly connected to the bracket. A rotating plate for pressing down the cover plate in cooperation with the vertical plate is arranged on the bracket. The rotating plate is rotatably installed on the bracket. Both ends of the rotating plate interfere with the moving trajectories of the vertical plate and the cover plate. When the cartridge moves to a position coaxially arranged with the first chemical dosing pipe, both the cover plate and the first chemical dosing pipe are connected to the cartridge. An air pump is fixedly installed on the bracket. The air pump is communicated with an air inlet pipe, and the air inlet pipe is connected to the cover plate.

[0009] Further technical solution: A second rotary power member is fixedly installed on the housing. The axis of the output shaft of the second rotary power member is parallel to the axis of the through hole. The output end of the second rotary power member is fixedly installed with a rotating frame. The cartridge is fixedly installed at the end of the rotating frame. A blanking pipe is communicated at the bottom of the cartridge. A pressure valve is arranged on the blanking pipe. The moving trajectories of the first chemical dosing pipe and the blanking pipe interfere with each other.

[0010] Further technical solution: A first horizontal plate located inside the housing is rotatably installed on the vertical plate. A second horizontal plate is slidably installed at one end of the first horizontal plate away from the vertical plate. The first chemical dosing pipe is rotatably installed on the second horizontal plate. A second expansion member for driving the second horizontal plate to move is fixedly installed on the vertical plate. A magnet is fixedly installed on the mounting shaft of the first horizontal plate. The magnet contacts the vertical plate, and the position where the vertical plate contacts the magnet is made of magnetic material.

[0011] Further technical solution: A first connecting plate is fixedly installed at one end of the second horizontal plate close to the first horizontal plate. The first connecting plate is slidably connected to the first horizontal plate. A chute for the first connecting plate to extend into is formed on the end face of the first horizontal plate close to the second horizontal plate. A second connecting plate is rotatably installed on the first connecting plate. The second connecting plate is fixedly connected to the second expansion member.

[0012] Further technical solution: Two groups of cross bars are fixedly installed on the inner side wall of the housing. A rack is slidably installed on the cross bars. The rack is distributed along the length direction of the vertical plate and is used in cooperation with a gear fixedly installed on the mounting shaft of the first horizontal plate. When the first horizontal plate moves downward, the gear meshes with the rack. A buckle for limiting the position of the rack is arranged on the cross bar.

[0013] Further technical solution: A support rod is fixedly installed on the cross bar. A slider is slidably installed on the support rod. The buckle is fixedly installed at the end of the slider. A second elastic member is fixedly installed on the slider. The end of the second elastic member away from the slider is fixedly connected to the cross bar. An L-shaped limiting groove is formed at the top of the rack. The buckle is located in the limiting groove. A connecting frame for pressing down the buckle is fixedly installed on the vertical plate.

[0014] The present invention also provides a method for using a dosing device, which is applied to the dosing device for the sewage treatment equipment described above, and comprises the following steps:

[0015] Step S1: transporting the sewage to be treated into the housing, and driving the stirring blades to rotate by the first rotating power member to stir the sewage;

[0016] Step S2: adding different treatment liquids into the first dosing pipe according to a set sequence and time interval through the dosing component;

[0017] Step S3: During the rotation of the sewage, the first dosing tube is pushed to rotate by the limit frame and the limit plate, and the first dosing tube drives the second dosing tube to rotate synchronously, so that the second dosing tube can rotate around the connection between it and the first dosing tube under the action of centrifugal force, and the liquid medicine enters the first dosing tube and moves downward, a part of it flows out through the flow hole at the bottom thereof, and the other part flows out through the two groups of second dosing tubes;

[0018] Step S4: changing the rotation speed of the first rotating power member to change the rotation speed of the first dosing tube. When the rotation speed of the first dosing tube changes, the rotation angle of the second dosing tube will also change, so that the drug outlet end of the second dosing tube can move to different positions in the shell, so that the drug solution can be added to different positions in the sewage.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The sewage in the shell will rotate under the stirring action of the stirring blades. During the rotation, the sewage pushes the first dosing tube to rotate through the limit frame and the limit plate, and the first dosing tube drives the second dosing tube to rotate synchronously, so that under the action of centrifugal force, the second dosing tube can rotate around the connection between it and the first dosing tube. When the rotation speed of the first rotating power part changes, the rotation speed of the sewage in the shell will change synchronously. At this time, the rotation speed of the first dosing tube will also change. When the rotation speed of the first dosing tube changes, the rotation angle of the second dosing tube will also change, so that the drug outlet end of the second dosing tube can move at different positions in the shell, so that the drug solution can be added to different positions in the sewage, accelerating the diffusion speed of the drug solution in the sewage, making the drug solution more evenly distributed, improving the speed and effect of the reaction between the drug solution and the sewage, and reducing the time of sewage treatment.

[0021] 2. When adding medicine, the air pump transports air into the barrel through the air inlet pipe. After the air pressure in the barrel increases, the pressure valve opens, and the liquid medicine flows downward into the first medicine adding pipe. At this time, air also enters the first medicine adding pipe and then into the sewage. The air flows in the first medicine adding pipe and pushes the liquid medicine and sewage in the first and second medicine adding pipes to spray outwards. As a result, the liquid medicine can flow quickly in the sewage, enabling the liquid medicine to be directly added to more areas in the sewage. Subsequently, gas forms bubbles in the sewage, and the rising bubbles push the sewage and liquid medicine to flow upward, further accelerating the mixing speed of the liquid medicine and sewage, increasing the speed of uniform distribution of the liquid medicine, and further enhancing the reaction speed and effect between the liquid medicine and sewage.

[0022] 3. When a group of liquid medicine is added, the vertical plate drives the first cross plate and the second cross plate to move downward by a set distance, causing the first medicine adding pipe to move downward into the shell. When the first cross plate descends to the set position, the first cross plate and the second cross plate rotate by ninety degrees. Then, the second telescopic member drives the second cross plate to move away from the vertical plate by a set distance through the second connecting plate, moving the first medicine adding pipe away from the center position of the shell. At this time, the rotating sewage in the shell can enter the first medicine adding pipe from the connector, and the first and second medicine adding pipes will be completely immersed in the sewage. When the sewage moves through the first and second medicine adding pipes, it will clean the residual liquid medicine in the first and second medicine adding pipes, thereby avoiding the residual liquid medicine in the first and second medicine adding pipes and preventing the subsequent liquid medicine from reacting with the residual liquid medicine in the first and second medicine adding pipes, ensuring the use effect of the liquid medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the overall structural schematic diagram of the present invention.

[0024] Figure 2 is the structural schematic diagram inside the shell of the present invention.

[0025] Figure 3 is the sectional structural schematic diagram of the present invention.

[0026] Figure 4 is Figure 1 the enlarged schematic diagram of area A1 in

[0027] Figure 5 is the structural schematic diagram of the first cross plate of the present invention.

[0028] Figure 6 is Figure 3 the enlarged schematic diagram of area A2 in

[0029] Figure 7 is the structural schematic diagram of the rack of the present invention.

[0030] Figure 8 is the sectional structural schematic diagram of the buckle of the present invention.

[0031] In the accompanying drawings: 1. housing; 2. stirring blade; 3. first rotary power member; 4. second rotary power member; 5. rotating frame; 6. barrel; 7. blanking pipe; 8. through hole; 9. bracket; 10. telescopic rod; 11. first elastic member; 12. cover plate; 13. air pump; 14. intake pipe; 15. rotating plate; 16. vertical plate; 17. first telescopic member; 18. first horizontal plate; 19. gear; 20. second horizontal plate; 21. first connecting plate; 22. second connecting plate; 23. second telescopic member; 24. first chemical adding pipe; 25. connector; 26. second chemical adding pipe; 27. connecting hose; 28. limiting plate; 29. limiting frame; 30. connecting frame; 31. cross bar; 32. rack; 33. limiting groove; 34. support rod; 35. slider; 36. second elastic member; 37. buckle; 38. chemical adding assembly. Detailed implementation manners

[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0034] As Figures 1 - 4 shown, a chemical adding device for a sewage treatment device provided by the present invention includes a housing 1. A through hole 8 is opened at the top of the housing 1. A first rotary power member 3 is fixedly installed at the bottom of the housing 1, and the first rotary power member 3 drives the stirring blade 2 in the housing 1 to rotate;

[0035] A vertical plate 16 is slidably installed on the top wall of the housing 1, and a first telescopic member 17 for driving the vertical plate 16 to move up and down is fixedly installed on the housing 1. A first chemical adding pipe 24 is arranged on the vertical plate 16. The first chemical adding pipe 24 is coaxially arranged with the through hole 8. A medicine flowing hole is arranged at one end of the first chemical adding pipe 24 away from the through hole 8. Two groups of symmetrically distributed second chemical adding pipes 26 are rotatably installed at one end of the first chemical adding pipe 24 away from the through hole 8. The second chemical adding pipe 26 is communicated with the first chemical adding pipe 24 through a connecting hose 27. A connector 25 is rotatably installed at one end of the first chemical adding pipe 24 close to the through hole 8. When the first chemical adding pipe 24 moves upward, the connector 25 passes through the through hole 8. Symmetrically distributed limiting frames 29 are fixedly installed on the first chemical adding pipe 24. A limiting plate 28 is slidably installed in the limiting frame 29. One end of the limiting plate 28 is fixedly connected to the corresponding second chemical adding pipe 26. A chemical adding assembly 38 for conveying liquid medicine into the first chemical adding pipe 24 is arranged at the top of the housing 1.

[0036] In actual application of this embodiment, the sewage to be treated is conveyed into the housing 1, and the stirring blades 2 are driven by the first rotating power member 3 to rotate to stir the sewage. At the same time, different treatment liquid medicines are added into the first medicine adding pipe 24 according to the set sequence and time interval through the medicine adding assembly 38. After the liquid medicine enters the first medicine adding pipe 24, it moves downward. Part of it flows out through the liquid medicine holes at the bottom thereof, and the other part flows out through the two groups of second medicine adding pipes 26. The sewage in the housing 1 will rotate under the stirring action of the stirring blades 2. During the rotation process of the sewage, the first medicine adding pipe 24 is pushed to rotate by the limiting frame 29 and the limiting plate 28. The first medicine adding pipe 24 drives the second medicine adding pipe 26 to rotate synchronously. Thus, under the action of centrifugal force, the second medicine adding pipe 26 can rotate around its connection with the first medicine adding pipe 24. When the rotation speed of the first rotating power member 3 changes, the rotation speed of the sewage in the housing 1 changes synchronously. At this time, the rotation speed of the first medicine adding pipe 24 also changes accordingly. When the rotation speed of the first medicine adding pipe 24 changes, the rotation angle of the second medicine adding pipe 26 also changes. Thus, the medicine outlet end of the second medicine adding pipe 26 can move to different positions in the housing 1, so that the liquid medicine can be added to different positions in the sewage, accelerating the diffusion speed of the liquid medicine in the sewage, making the liquid medicine distribution more uniform, improving the reaction speed and effect of the liquid medicine and the sewage, and reducing the sewage treatment time.

[0037] In an example of this embodiment, the first rotating power member 3 is a first motor. Of course, it can also be other components such as a hydraulic motor that can output rotational power, and the stirring blades 2 are driven by the first motor to stir the sewage.

[0038] As Figures 1 - 4 shown, a medicine adding device for a sewage treatment device provided by the present invention is provided. The medicine adding assembly 38 includes a bracket 9 and multiple groups of material cylinders 6. The bracket 9 is fixedly installed on the top of the housing 1. An expansion rod 10 pointing to the housing 1 is fixedly installed on the bracket 9. One end of the expansion rod 10 close to the housing 1 is fixedly installed with a cover plate 12. A first elastic member 11 is fixedly installed on the cover plate 12. The end of the first elastic member 11 away from the cover plate 12 is fixedly connected to the bracket 9. A rotating plate 15 that cooperates with the vertical plate 16 to press down the cover plate 12 is arranged on the bracket 9. The rotating plate 15 is rotatably installed on the bracket 9. When the moving trajectories of the two ends of the rotating plate 15 respectively interfere with the vertical plate 16 and the cover plate 12 and the material cylinder 6 moves to a position coaxially arranged with the first medicine adding pipe 24, the cover plate 12 and the first medicine adding pipe 24 are both connected to the material cylinder 6. An air pump 13 is fixedly installed on the bracket 9. The air pump 13 is communicated with an air inlet pipe 14, and the air inlet pipe 14 is connected to the cover plate 12.

[0039] Specifically, a second rotating power component 4 is fixedly mounted on the shell 1, the axis of the output shaft of the second rotating power component 4 is parallel to the axis of the through hole 8, a rotating frame 5 is fixedly mounted on the output end of the second rotating power component 4, a barrel 6 is fixedly mounted on the end of the rotating frame 5, a drop pipe 7 is connected to the bottom of the barrel 6, a pressure valve is provided on the drop pipe 7, and the first dosing pipe 24 interferes with the movement trajectory of the drop pipe 7.

[0040] In actual application of this embodiment, set amounts of different liquid medicines are sequentially conveyed into the barrel 6. When adding liquid medicines, the second rotating power member 4 drives the barrel 6 to rotate through the rotating frame 5, so that the barrel 6 where the liquid medicine to be added to the shell 1 is located rotates to just above the through hole 8. At this time, the first telescopic member 17 drives the vertical plate 16 to move upward to move the first dosing tube 24 upward, and stops when the connecting head 25 contacts the lower end of the blanking tube 7. When the vertical plate 16 moves upward, its upper end contacts the rotating plate 15 and pushes the rotating plate 15 to rotate, so that the rotating plate 15 presses down the cover plate 12 and stretches the first elastic member 11. When the connecting head 25 contacts the lower end of the blanking tube 7, the cover plate 12 contacts and seals the upper end of the barrel 6.

[0041] When adding medicine, the air pump 13 conveys air into the barrel 6 through the air inlet pipe 14. After the air pressure in the barrel 6 increases, the pressure valve is opened, and the medicine flows downward into the first dosing tube 24. At this time, air will also enter the first dosing tube 24 and enter the sewage. The air will flow in the first dosing tube 24 and push the medicine and sewage in the first dosing tube 24 and the second dosing tube 26 to spray out, so that the medicine can flow quickly in the sewage, so that the medicine can be directly added to more areas in the sewage. Subsequently, the gas forms bubbles in the sewage, and the rising bubbles push the sewage and the medicine upward, further accelerating the mixing speed of the medicine and the sewage, increasing the speed of uniform distribution of the medicine, and further improving the speed and effect of the reaction between the medicine and the sewage. After the dosing is completed, the first telescopic member 17 is reset to separate the cover plate 12 and the connector 25 from the barrel 6, and then the next group of barrels 6 can be replaced.

[0042] In one embodiment of the present invention, the second rotating power member 4 is a second motor, and of course it can also be other components that can output rotational power, such as a hydraulic motor. The second motor drives the rotating frame 5 to rotate and replace the barrel 6. The first telescopic member 17 is a first electric telescopic rod, and of course it can also be other components that can actively change the length, such as a hydraulic cylinder. The vertical plate 16 is driven downward by the first electric telescopic rod. The first elastic member 11 is a first spring, and of course it can also be other elastic components such as an elastic ball. The first spring applies a resetting pulling force to the cover plate 12.

[0043] like Figures 1 - 8As shown, a chemical dosing device for a sewage treatment equipment provided by the present invention. A first cross plate 18 located inside the housing 1 is rotatably installed on the vertical plate 16. A second cross plate 20 is slidably installed at one end of the first cross plate 18 away from the vertical plate 16. A first chemical dosing pipe 24 is rotatably installed on the second cross plate 20. A second telescopic member 23 for driving the second cross plate 20 to move is fixedly installed on the vertical plate 16. A magnet is fixedly installed on the installation shaft of the first cross plate 18. The magnet contacts the vertical plate 16, and the position where the vertical plate 16 contacts the magnet is made of magnetic material.

[0044] Specifically, a first connecting plate 21 is fixedly installed at one end of the second cross plate 20 close to the first cross plate 18. The first connecting plate 21 is slidably connected to the first cross plate 18. A chute for the first connecting plate 21 to extend into is formed on the end face of the first cross plate 18 close to the second cross plate 20. A second connecting plate 22 is rotatably installed on the first connecting plate 21. The second connecting plate 22 is fixedly connected to the second telescopic member 23.

[0045] Specifically, two groups of cross bars 31 are fixedly installed on the inner side wall of the housing 1. A rack 32 is slidably installed on the cross bars 31. The rack 32 is distributed along the length direction of the vertical plate 16 and is used in cooperation with a gear 19 fixedly installed on the installation shaft of the first cross plate 18. When the first cross plate 18 moves downward, the gear 19 meshes with the rack 32. A buckle 37 for restricting the position of the rack 32 is provided on the cross bar 31.

[0046] Specifically, a support rod 34 is fixedly installed on the cross bar 31. A slider 35 is slidably installed on the support rod 34. The buckle 37 is fixedly installed at the end of the slider 35. A second elastic member 36 is fixedly installed on the slider 35. One end of the second elastic member 36 away from the slider 35 is fixedly connected to the cross bar 31. An L-shaped limiting groove 33 is formed at the top of the rack 32. The buckle 37 is located in the limiting groove 33. A connecting frame 30 for pressing down the buckle 37 is fixedly installed on the vertical plate 16.

[0047] In practical application of this embodiment, when a group of liquid medicines are added up, the first telescopic member 17 drives the vertical plate 16 to move downward. The vertical plate 16 drives the first horizontal plate 18 and the second horizontal plate 20 to move downward by a set distance, so that the first medicine adding pipe 24 moves downward into the housing 1. At this time, the second telescopic member 23 descends a very small distance and is located above the sewage liquid level, reducing the contact between the second telescopic member 23 and the sewage. During the downward movement of the first horizontal plate 18, the gear 19 contacts the rack 32, so the first horizontal plate 18 will rotate during the downward movement. When the first horizontal plate 18 descends to the set position, the first horizontal plate 18 and the second horizontal plate 20 rotate by ninety degrees. At this time, the first medicine adding pipe 24 rotates to the horizontal state. When the first horizontal plate 18 descends, the lower end of the connecting frame 30 will enter the limiting groove 33 to press down the buckle 37 and compress the second elastic member 36 through the slider 35. When the first horizontal plate 18 descends to the set position, the buckle 37 no longer restricts the position of the rack 32. At this time, the second telescopic member 23 drives the second horizontal plate 20 to move a set distance in the direction away from the vertical plate 16 through the second connecting plate 22. During the movement of the second horizontal plate 20, the rack 32 can be driven to move synchronously through the connecting frame 30, so as to ensure that the rack 32 and the gear 19 are always in a meshing state, and the first medicine adding pipe 24 is far away from the center position of the housing 1. At this time, the rotating sewage in the housing 1 can enter the first medicine adding pipe 24 from the connecting head 25, and the first medicine adding pipe 24 and the second medicine adding pipe 26 will be completely immersed in the sewage. When the sewage moves through the first medicine adding pipe 24 and the second medicine adding pipe 26, it will clean the residual liquid medicines in the first medicine adding pipe 24 and the second medicine adding pipe 26, so as to avoid the residual liquid medicines in the first medicine adding pipe 24 and the second medicine adding pipe 26, and avoid the subsequent reaction between the liquid medicines in the first medicine adding pipe 24 and the second medicine adding pipe 26 and the residual liquid medicines, ensuring the use effect of the liquid medicines;

[0048] After the cleaning is completed, the second telescopic member 23 drives the second horizontal plate 20 to reset. When resetting, the buckle 37 will enter the limiting groove 33 again. Then the first telescopic member 17 drives the first horizontal plate 18 to reset. After the connecting frame 30 leaves the limiting groove 33, the buckle 37 will restrict the position of the rack 32 again under the action of the second elastic member 36, realizing the connection and fixation of the position of the rack 32 and ensuring the stability of the position of the rack 32. During the downward movement of the first horizontal plate 18, the magnet on the mounting shaft of the first horizontal plate 18 adsorbs to the vertical plate 16, so as to generate a fixed acting force on the mounting shaft of the first horizontal plate 18 and ensure the stability of the first horizontal plate 18 during the up and down movement.

[0049] In an example of the present invention, the second telescopic member 23 is a second electric telescopic rod. Of course, it can also be other components such as a hydraulic cylinder that can actively change the length. The second electric telescopic rod drives the second horizontal plate 20 to move. The second elastic member 36 is a second spring. Of course, it can also be other elastic components such as a elastic ball. The second spring applies an upward thrust to the slider 35.

[0050] As Figures 1 - 6 shown, a method for using a chemical dosing device provided by the present invention is applied to the chemical dosing device for a sewage treatment device described above, and it includes the following steps:

[0051] Step S1: Convey the sewage to be treated into the housing 1, and drive the stirring blade 2 to rotate through the first rotating power member 3 to stir the sewage;

[0052] Step S2: Add different treatment liquid medicines into the first chemical dosing pipe 24 in accordance with the set sequence and time interval through the chemical dosing assembly 38;

[0053] Step S3: During the rotation of the sewage, the first chemical dosing pipe 24 is pushed to rotate through the limit frame 29 and the limit plate 28, and the first chemical dosing pipe 24 drives the second chemical dosing pipe 26 to rotate synchronously. Thus, under the action of centrifugal force, the second chemical dosing pipe 26 can rotate around its connection with the first chemical dosing pipe 24. After the liquid medicine enters the first chemical dosing pipe 24, it moves downward, and a part of it flows out through the liquid medicine flow holes at its bottom, and the other part flows out through the two groups of second chemical dosing pipes 26;

[0054] Step S4: Change the rotation speed of the first rotating power member 3 to change the rotation speed of the first chemical dosing pipe 24. When the rotation speed of the first chemical dosing pipe 24 changes, the rotation angle of the second chemical dosing pipe 26 will also change. Thus, the liquid medicine outlet end of the second chemical dosing pipe 26 can move to different positions in the housing 1, so that the liquid medicine can be added to different positions in the sewage.

[0055] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0056] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dosing device for sewage treatment equipment, comprising a housing (1), a through hole (8) being provided on the top of the housing (1), characterized in that: A first rotating power component (3) is fixedly mounted on the bottom of the housing (1), and the first rotating power component (3) drives the stirring blade (2) in the housing (1) to rotate; A vertical plate (16) is slidably mounted on the top wall of the shell (1), and a first telescopic member (17) is fixedly mounted on the shell (1) for driving the vertical plate (16) to move up and down. A first dosing pipe (24) is arranged on the vertical plate (16), and the first dosing pipe (24) is coaxially arranged with the through hole (8). A drug flow hole is arranged at one end of the first dosing pipe (24) away from the through hole (8). Two groups of symmetrically distributed A second dosing pipe (26) is connected to the first dosing pipe (24) via a connecting hose (27); a symmetrically distributed limit frame (29) is fixedly mounted on the first dosing pipe (24); a limit plate (28) is slidably mounted in the limit frame (29); one end of the limit plate (28) is fixedly connected to the second dosing pipe (26) on the corresponding side; and a dosing component (38) for conveying liquid medicine into the first dosing pipe (24) is arranged on the top of the shell (1).

2. A dosing device for sewage treatment equipment according to claim 1, characterized in that: A connector (25) is rotatably mounted on one end of the first dosing tube (24) close to the through hole (8), and the connector (25) passes through the through hole (8) when the first dosing tube (24) moves upward.

3. A dosing device for sewage treatment equipment according to claim 1, characterized in that: The dosing assembly (38) comprises a bracket (9) and a plurality of groups of barrels (6), wherein the bracket (9) is fixedly mounted on the top of the housing (1), a telescopic rod (10) pointing to the housing (1) is fixedly mounted on the bracket (9), a cover plate (12) is fixedly mounted on one end of the telescopic rod (10) close to the housing (1), a first elastic member (11) is fixedly mounted on the cover plate (12), an end of the first elastic member (11) away from the cover plate (12) is fixedly connected to the bracket (9), and a spring (16) is provided on the bracket (9) for use in conjunction with the vertical plate (16) A rotating plate (15) is pressed down on the cover plate (12). The rotating plate (15) is rotatably mounted on the bracket (9). The two ends of the rotating plate (15) interfere with the moving tracks of the vertical plate (16) and the cover plate (12) respectively. When the barrel (6) moves to a position coaxially arranged with the first dosing pipe (24), the cover plate (12) and the first dosing pipe (24) are both connected to the barrel (6). An air pump (13) is fixedly mounted on the bracket (9). The air pump (13) is connected to an air intake pipe (14), and the air intake pipe (14) is connected to the cover plate (12).

4. A dosing device for sewage treatment equipment according to claim 3, characterized in that: A second rotating power member (4) is fixedly mounted on the housing (1); the axis of the output shaft of the second rotating power member (4) is parallel to the axis of the through hole (8); a rotating frame (5) is fixedly mounted on the output end of the second rotating power member (4); a barrel (6) is fixedly mounted on the end of the rotating frame (5); a drop pipe (7) is connected to the bottom of the barrel (6); a pressure valve is provided on the drop pipe (7); and the first dosing pipe (24) interferes with the movement trajectory of the drop pipe (7).

5. A dosing device for sewage treatment equipment according to claim 1, characterized in that: A first horizontal plate (18) located in the shell (1) is rotatably mounted on the vertical plate (16); a second horizontal plate (20) is slidably mounted on one end of the first horizontal plate (18) away from the vertical plate (16); a first dosing tube (24) is rotatably mounted on the second horizontal plate (20); a second telescopic member (23) for driving the second horizontal plate (20) to move is fixedly mounted on the vertical plate (16); a magnet is fixedly mounted on the mounting shaft of the first horizontal plate (18); the magnet is in contact with the vertical plate (16); and the position where the vertical plate (16) and the magnet are in contact is made of magnetic material.

6. A dosing device for sewage treatment equipment according to claim 5, characterized in that: A first connecting plate (21) is fixedly mounted on one end of the second transverse plate (20) close to the first transverse plate (18); the first connecting plate (21) is slidably connected to the first transverse plate (18); a sliding groove for the first connecting plate (21) to extend into is provided on the end surface of the first transverse plate (18) close to the second transverse plate (20); a second connecting plate (22) is rotatably mounted on the first connecting plate (21); and the second connecting plate (22) is fixedly connected to the second telescopic member (23).

7. A dosing device for sewage treatment equipment according to claim 6, characterized in that: Two groups of cross bars (31) are fixedly mounted on the inner side wall of the housing (1), and racks (32) are slidably mounted on the cross bars (31). The racks (32) are distributed along the length direction of the vertical plate (16) and the racks (32) are used in conjunction with a gear (19) fixedly mounted on the mounting shaft of the first cross plate (18). When the first cross plate (18) moves downward, the gear (19) meshes with the racks (32), and a buckle (37) for limiting the position of the racks (32) is provided on the cross bars (31).

8. A dosing device for sewage treatment equipment according to claim 7, characterized in that: A support rod (34) is fixedly mounted on the cross bar (31), a slider (35) is slidably mounted on the support rod (34), a buckle (37) is fixedly mounted on the end of the slider (35), a second elastic member (36) is fixedly mounted on the slider (35), an end of the second elastic member (36) away from the slider (35) is fixedly connected to the cross bar (31), an L-shaped limiting groove (33) is provided on the top of the rack (32), the buckle (37) is located in the limiting groove (33), and a connecting frame (30) for pressing down the buckle (37) is fixedly mounted on the vertical plate (16).

9. A method for using a dosing device, characterized in that: A dosing device for a sewage treatment device as claimed in any one of claims 1 to 8, comprising the following steps: Step S1: The sewage to be treated is transported into the housing (1), and the first rotating power member (3) drives the stirring blade (2) to rotate to stir the sewage; Step S2: adding different treatment liquids into the first dosing pipe (24) according to a set sequence and time interval through the dosing component (38); Step S3: During the rotation of the sewage, the first dosing tube (24) is pushed to rotate by the limit frame (29) and the limit plate (28), and the first dosing tube (24) drives the second dosing tube (26) to rotate synchronously, so that under the action of centrifugal force, the second dosing tube (26) can rotate around the connection between it and the first dosing tube (24), and the liquid medicine enters the first dosing tube (24) and moves downward, with a part of it flowing out through the flow hole at the bottom thereof, and the other part flowing out through the two groups of second dosing tubes (26); Step S4: changing the rotation speed of the first rotating power member (3) so as to change the rotation speed of the first dosing tube (24); when the rotation speed of the first dosing tube (24) changes, the rotation angle of the second dosing tube (26) will also change, so that the drug outlet end of the second dosing tube (26) can move to different positions in the housing (1), so that the drug solution can be added to different positions in the sewage.

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