A dosing device for water treatment

Abstract

This utility model discloses a dosing device for water treatment, including a dosing tank. A servo motor is fixedly connected to the top of the dosing tank, and a conical guide plate is fixedly connected inside the dosing tank. A through hole is opened at the bottom of the conical guide plate, and a hollow feed plate is rotatably connected to the inner wall of the through hole. This utility model uses the conical guide plate, the arc-shaped feed trough, and the servo motor-driven throwing pipe to use centrifugal force to throw the agent from the strip-shaped discharge hole, achieving rapid and uniform dispersion of the agent into the water and avoiding excessively high local concentrations. The rotation of the throwing pipe simultaneously drives the stirring blades, enhancing the mixing effect of water and agent, accelerating the dissolution rate of the agent, and ensuring a more thorough reaction. When pumping the mixture, it is filtered through a stainless steel filter screen, which can effectively intercept clumps of material impurities, reduce the risk of pipeline blockage, and the stainless steel filter screen can be pulled out by rotating the end plate for easy maintenance and cleaning.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, and in particular to a dosing device for water treatment. Background Technology

[0002] In wastewater treatment, due to fluctuations in influent water quality, the complexity of pollutant types, and limitations of treatment processes, it is often necessary to add chemical agents to assist in the removal of organic matter, nutrients (such as nitrogen and phosphorus), and trace pollutants (such as drug residues and hormones) that are difficult to biodegrade. For example, when biological phosphorus removal is ineffective, chemical agents (such as iron salts and aluminum salts) need to be added to achieve efficient phosphorus removal; in the denitrification process, carbon sources may need to be added to promote denitrification reactions, etc.

[0003] In existing technologies, when adding chemicals to wastewater, it is difficult to achieve rapid and uniform diffusion of the chemicals through simple pipes or single stirring. Insufficient uniformity leads to slow dissolution of the chemicals, and impurities or clumps of chemicals in the water increase the risk of pipe blockage and make maintenance difficult. Therefore, we propose a chemical dosing device for water treatment to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dosing device for water treatment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A water treatment dosing device includes a dosing tank, a servo motor fixedly connected to the top of the dosing tank, a conical guide plate fixedly connected inside the dosing tank, a through hole at the bottom of the conical guide plate, a hollow feed plate rotatably connected to the inner wall of the through hole, two arc-shaped feed grooves on the outer wall of the feed plate, a discharge pipe fixedly connected to the bottom of the feed plate, a plurality of strip-shaped discharge holes evenly distributed on the outer wall of the discharge pipe, two stirring blades fixedly connected to the bottom outer wall of the discharge pipe, and a filter assembly inside the dosing tank.

[0007] Preferably, the filter assembly includes two end tubes, one end of each end tube being fixedly connected to the outer wall of the dosing tank. One of the end tubes has a long tube threadedly connected to its inner wall, and a stainless steel filter screen is fixedly embedded in the outer wall of the long tube. By setting up the filter assembly, the mixture is filtered to avoid impurities in the water.

[0008] Preferably, the top of the dosing tank is fixedly connected to a dosing pipe, which facilitates the addition of water treatment chemicals to the conical dosing tray.

[0009] Preferably, the top of the dosing tank has a circular hole, and the inner wall of the circular hole is rotatably connected to the outer wall of the output shaft of the servo motor. The servo motor drives the material throwing tube to rotate.

[0010] Preferably, one end of the long tube is fixedly connected to a rotating end plate, and the long tube is rotated by setting the rotating end plate to release its threaded connection.

[0011] Preferably, a metering pump is fixedly connected to the outer wall of the other end pipe, and a bottom frame is fixedly connected to the bottom of the metering pump to support the metering pump.

[0012] Preferably, a water injection pipe is fixedly connected to the outer wall of the dosing tank, and a water pump is fixedly connected to one end of the water injection pipe.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] This solution utilizes a conical guide plate, an arc-shaped feed chute, and a servo motor-driven throwing pipe to use centrifugal force to throw the agent out of the strip-shaped discharge hole, achieving rapid and uniform dispersion of the agent into the water and avoiding excessively high local concentrations. The rotation of the throwing pipe simultaneously drives the stirring blades, enhancing the mixing effect between water and agent, accelerating the dissolution rate of the agent, and ensuring a more thorough reaction. When pumping the mixture, it is filtered through a stainless steel filter screen, which can effectively intercept clumps of material impurities, reduce the risk of pipeline blockage, and the stainless steel filter screen can be pulled out by rotating the end plate for easy maintenance and cleaning. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of a chemical dosing device for water treatment proposed in this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of a chemical dosing device for water treatment proposed in this utility model;

[0018] Figure 3 This utility model proposes a dosing device for water treatment. Figure 2 A magnified structural diagram of part A in the diagram;

[0019] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of a chemical dosing device for water treatment proposed in this utility model.

[0020] In the diagram: 1. Dosing tank; 2. Servo motor; 3. Inlet pipe; 4. Conical guide plate; 5. Feeding plate; 6. Arc-shaped feed trough; 7. Discharge pipe; 8. Strip discharge hole; 9. Stirring blade; 10. End pipe; 11. Long pipe; 12. Stainless steel filter screen; 13. Rotating end plate; 14. Base frame; 15. Metering pump; 16. Water injection pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Depend on Figures 1-4 As shown, a dosing device for water treatment is disclosed, including a dosing tank 1. The dosing tank 1 provides a closed and stable space for the mixing and reaction of chemicals and water. A servo motor 2 is fixedly connected to the top of the dosing tank 1. A circular hole is opened on the top of the dosing tank 1. The inner wall of the circular hole is rotatably connected to the outer wall of the output shaft of the servo motor 2. A chemical inlet pipe 3 is fixedly connected to the top of the dosing tank 1.

[0023] The inside of the dosing tank 1 is fixedly connected to a conical guide plate 4. The conical structure of the guide plate 4 guides and gathers the incoming agent, and can guide the agent put in from the inlet pipe 3 to the position of the feed plate 5, preventing the agent from falling randomly inside the dosing tank 1.

[0024] The bottom of the conical guide plate 4 has a through hole, and the inner wall of the through hole is rotatably connected to the hollow feed plate 5. The outer wall of the feed plate 5 has two arc-shaped feed grooves 6. The bottom of the feed plate 5 is fixedly connected to the discharge pipe 7. The arc-shaped feed groove 6 is designed to meet the flow characteristics of the drug, so that the drug can enter the discharge pipe 7 smoothly and evenly when the feed plate 5 rotates.

[0025] The outer wall of the discharge pipe 7 is evenly provided with multiple strip-shaped discharge holes 8. The multiple strip-shaped discharge holes 8 allow the agent to be thrown out from multiple directions at the same time under the action of centrifugal force, further expanding the dispersion range of the agent.

[0026] Two stirring blades 9 are fixedly connected to the bottom outer wall of the discharge pipe 7. The stirring blades 9 rotate synchronously with the discharge pipe 7, which can fully stir the water and medicine in the dosing tank 1 and enhance the mixing effect. A water injection pipe 16 is fixedly connected to the outer wall of the dosing tank 1, and a water pump is fixedly connected to one end of the water injection pipe 16.

[0027] The dosing tank 1 is equipped with a filter assembly, which includes two end pipes 10. One end of each end pipe 10 is fixedly connected to the outer wall of the dosing tank 1. A long pipe 11 is threadedly connected to the inner wall of one end pipe 10. A sealing ring is added to the contact surface between the end pipe 10 and the long pipe 11 to increase the sealing performance and prevent water leakage. A stainless steel filter screen 12 is fixedly embedded in the outer wall of the long pipe 11. A rotating end plate 13 is fixedly connected to one end of the long pipe 11. A metering pump 15 is fixedly connected to the outer wall of the other end pipe 10. A bottom frame 14 is fixedly connected to the bottom of the metering pump 15.

[0028] Two end pipes 10 are respectively connected to the dosing tank 1, the long pipe 11, and the metering pump 15, forming a transport channel for the mixed liquid. The stainless steel filter screen 12 on the long pipe 11 can effectively filter the lumpy materials and impurities in the mixed liquid, preventing them from entering the metering pump 15 and subsequent pipelines and causing blockage. The rotating end plate 13 facilitates the disassembly and assembly of the long pipe 11 and the end pipe 10. When the stainless steel filter screen 12 needs to be cleaned or replaced, the long pipe 11 can be pulled out simply by rotating the rotating end plate 13. The operation is simple and reduces maintenance time and cost.

[0029] Working principle: During use, the water pump draws external water into the dosing tank 1 through the water injection pipe 16, and then the chemical agent is fed into the dosing pipe 3 and into the conical guide plate 4. As the two arc-shaped feed troughs 6 gradually enter the throwing pipe 7, the servo motor 2 drives the feed plate 5 to rotate, which in turn drives the throwing pipe 7 to rotate. With the rotation of the throwing pipe 7, the internal chemical agent is thrown out through multiple strip-shaped discharge holes 8 by centrifugal force, quickly dispersing into the water. The rotation of the throwing pipe 7 also drives the stirring blade 9 to rotate, which mixes the water and chemical agent. After mixing, the metering pump 15 pumps the mixture into the wastewater where the chemical agent needs to be added. During pumping, the mixture is filtered through the stainless steel filter screen 12 to prevent the formation of clumps or impurities that could clog subsequent pipes. Afterward, the stainless steel filter screen 12 can be removed by simply rotating the rotating end plate 13 to pull out the long pipe 11 and the stainless steel filter screen 12.

[0030] It should be noted that when actually put into use, an existing PLC controller can be added. The PLC controller is electrically connected to the servo motor 2, the metering pump 15, and the water pump to facilitate the control of the overall operation.

[0031] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0032] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dosing device for water treatment comprising a dosing tank (1), characterized in that, A servo motor (2) is fixedly connected to the top of the dosing tank (1). A conical guide plate (4) is fixedly connected inside the dosing tank (1). A through hole is opened at the bottom of the conical guide plate (4). A hollow feeding plate (5) is rotatably connected to the inner wall of the through hole. Two arc-shaped feeding grooves (6) are opened on the outer wall of the feeding plate (5). A throwing pipe (7) is fixedly connected to the bottom of the feeding plate (5). Multiple strip-shaped discharge holes (8) are evenly opened on the outer wall of the throwing pipe (7). Two stirring blades (9) are fixedly connected to the bottom outer wall of the throwing pipe (7). A filter assembly is provided inside the dosing tank (1).

2. The chemical feeding device for water treatment according to claim 1, characterized in that, The filter assembly includes two end tubes (10), one end of each end tube (10) is fixedly connected to the outer wall of the dosing tank (1), and a long tube (11) is threadedly connected to the inner wall of one of the end tubes (10), and a stainless steel filter screen (12) is fixedly embedded in the outer wall of the long tube (11).

3. The chemical feeding device for water treatment according to claim 1, characterized in that, The top of the dosing tank (1) is fixedly connected to the inlet pipe (3).

4. The chemical feeding device for water treatment according to claim 1, characterized in that The top of the dosing tank (1) has a circular hole, and the inner wall of the circular hole is rotatably connected to the outer wall of the output shaft of the servo motor (2).

5. The chemical feeding device for water treatment according to claim 2, characterized in that, A rotating end plate (13) is fixedly connected to one end of the long tube (11).

6. The chemical feeding device for water treatment according to claim 2, characterized in that Another end pipe (10) is fixedly connected to a metering pump (15) on its outer wall, and a bottom frame (14) is fixedly connected to the bottom of the metering pump (15).

7. The chemical feeding device for water treatment according to claim 1, characterized by The outer wall of the dosing tank (1) is fixedly connected to a water injection pipe (16), and a water pump is fixedly connected to one end of the water injection pipe (16).

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