Testing device for sewage flocculation
By designing a sewage flocculation test device including a mixing mechanism and a stirring mechanism, the problems of reduced reaction rate and increased additional equipment caused by the deposition of suspended matter in the sewage are solved, and the uniformity and accuracy of efficient mixing and flocculation reactions of sewage and flocculant are achieved.
Patent Information
- Application Number
- CN202422111504.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-29
AI Technical Summary
When treating sewage, the existing sewage flocculation test equipment is more solid particles in suspended and easily deposits on the bottom of the reaction tank, resulting in different uniformity of the sewage up and down, reducing the rate of reaction between flocculant and sewage. At the same time, additional equipment is required to quantitatively distribute flocculant, which increases the cost of use and floor area.
A sewage flocculation test device including a mixing mechanism and a stirring mechanism is designed. Through the design of the sphere and rotary rod, the mixing mechanism realizes synchronous input and preliminary mixing of wastewater and flocculant, avoiding the use of additional equipment. The stirring mechanism uses a stirring blade driven by a stepper motor to drive the lifting plate to move up and down in the reaction tank. The suspended substance is not easy to sink to the bottom, which improves the reaction rate and uniformity.
Through the design of the mixing mechanism, precise mixing and efficient input of wastewater and flocculant is achieved, reducing the cost of use and footprint of additional equipment. The stirring mechanism effectively prevents suspended substance from sinking to the bottom, improves the rate and uniformity of the flocculation reaction, and ensures the accuracy and repeatability of the experiment.
Smart Images
Figure CN223016605U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of sewage flocculation tests, and particularly relates to a test device for sewage flocculation. Background Technique
[0002] The sewage flocculation test device is a commonly used test equipment in the fields of environmental engineering and water treatment. By simulating and evaluating the effects of different flocculants in the sewage treatment process, it provides a scientific basis for the optimization of the sewage treatment process.
[0003] After retrieval, the Chinese patent publication number: CN21790169U discloses a test device for turbidity water flocculation, including a base, a rotating column, a second swing plate and a container bottle. The top of the base is fixedly connected with a mounting plate, and the surface of the mounting plate is rotatably connected with a disc that drives the rotating column to rotate. The surface of the rotating column is fixedly connected with a first swing plate that drives the second swing plate to swing. This patent drives the threaded rod to rotate by energizing the generator, and the glass rod fixedly connected to the rotating disc will rotate accordingly to achieve the purpose of automatically stirring the turbidity water. However, there are many suspended solid particles in the sewage. Under the action of gravity, they are easily deposited at the bottom of the reaction tank, resulting in different uniformity of the sewage inside the reaction tank, reducing the reaction rate of the flocculant and sewage, and the reaction is not sufficient. At the same time, during the test, the feeding system needs to accurately control the feeding speed and flow rate to ensure the accuracy and repeatability of the experiment. In the prior art, generally, an additional device needs to be used to quantitatively put the flocculant, which increases the use cost, and the additional device will increase the floor area, which is more inconvenient. Therefore, a test device for sewage flocculation is proposed to solve the above problems. Summary of the Utility Model
[0004] In order to make up for the above deficiencies, the utility model provides a test device for sewage flocculation, aiming to improve the problem of "using an additional device to quantitatively put the flocculant in the prior art, which increases the use cost, and the additional device will increase the floor area, which is more inconvenient".
[0005] To achieve the above object, the utility model adopts the following technical solutions: An experimental device for sewage flocculation, including a bottom plate, a reaction tank is fixedly connected to the top of the bottom plate, a stirring mechanism is arranged inside the reaction tank, a sampling pipe is fixedly connected to the front of the reaction tank, a liquid outlet pipe is fixedly connected to the right side of the reaction tank, a support column is fixedly connected to the top of the bottom plate, a top plate is fixedly connected to the top of the support column, a medicine tank is fixedly connected to the top of the top plate, a mixing mechanism is arranged on the top of the medicine tank, the mixing mechanism includes a sphere, a sewage pipe is fixedly connected to the right side of the sphere, a rotating rod is rotatably connected to the inner wall of the sphere, a handwheel is fixedly connected to the front of the rotating rod, a baffle is fixedly connected to the surface of the rotating rod, the outer wall of the baffle fits with the inner wall of the sphere, a water inlet is opened on the right side of the sphere, a liquid inlet is opened at the bottom of the sphere, a liquid outlet is opened on the left side of the sphere, and a positioning mechanism is arranged inside the rotating rod.
[0006] As a further description of the above technical solution:
[0007] The inside of the sphere is communicated with the inside of the medicine tank, and the inside of the sphere is communicated with the inside of the reaction tank through a connecting pipe.
[0008] As a further description of the above technical solution:
[0009] The positioning mechanism includes a limiting rod, the limiting rod is slidably installed on the inner wall of the rotating rod, and the limiting rod is elastically connected to the inner wall of the rotating rod through a spring.
[0010] As a further description of the above technical solution:
[0011] Limiting grooves are opened on the inner wall of the sphere, the number of the limiting grooves is set to be multiple, and the multiple limiting grooves are arranged at equal angular intervals in a ring on the inner wall of the sphere.
[0012] As a further description of the above technical solution:
[0013] The stirring mechanism includes a stepper motor, the stepper motor is fixedly installed on the top of the reaction tank, the bottom of the output shaft of the stepper motor is fixedly connected with a rotating shaft, a connecting rod is fixedly connected to the circumferential surface of the rotating shaft, a stirring blade is fixedly connected to the end of the connecting rod far away from the rotating shaft, and through grooves are opened on the surface of the stirring blade.
[0014] As a further description of the above technical solution:
[0015] The stirring mechanism further includes a runner, the runner is fixedly installed at the bottom of the circumferential surface of the rotating shaft, and a sliding groove is opened on the circumferential surface of the runner.
[0016] As a further description of the above technical solution:
[0017] The stirring mechanism further includes a sleeve, the sleeve is sleeved on the outer wall of the rotating shaft, and U-shaped connecting frames are fixedly connected to the left and right ends of the sleeve, and the ends of the U-shaped connecting frames away from the sleeve are fixedly installed at the bottom of the inner wall of the reaction tank.
[0018] As a further description of the above technical solution:
[0019] The stirring mechanism further includes sliders, the sliders are slidably installed on the surface of the U-shaped connecting frame, the number of the sliders is set to two groups, a cross bar is fixedly connected to the side of the two groups of sliders close to each other, a sliding ball is fixedly connected to the end of the cross bar away from the sleeve, the sliding ball is slidably installed on the inner wall of the chute, and lifting plates are fixedly connected to the front and back sides of the cross bar.
[0020] The utility model has the following beneficial effects:
[0021] 1. In the utility model, by setting the mixing mechanism and rotating the hand wheel, the baffle can rotate on the inner wall of the sphere and then move to the top of the inner wall of the sphere, so as not to block the liquid inlet and the water inlet, enabling the waste liquid and the liquid medicine to enter the tank body together without adding additional equipment, reducing the use cost and the additional floor area of the equipment.
[0022] 2. In the utility model, by setting the stirring mechanism, when the stepping motor works to drive the stirring blades to rotate and stir the sewage, it will also drive the lifting plates to make reciprocating linear motion in the vertical direction at the lower part inside the reaction tank, thereby lifting the solid particle suspensions deposited at the bottom to the higher part inside the reaction tank, reducing the problems of the decrease in the reaction rate and insufficient reaction caused by sedimentation. Description of the Drawings
[0023] Figure 1 It is a three-dimensional structure schematic diagram of the whole in the utility model;
[0024] Figure 2 It is a three-dimensional structural sectional schematic diagram of the stirring mechanism in the utility model;
[0025] Figure 3 It is a three-dimensional structure schematic diagram of a part of the stirring mechanism in the utility model;
[0026] Figure 4 It is a three-dimensional structural sectional schematic diagram of the mixing mechanism in the utility model;
[0027] Figure 5 It is a three-dimensional structural sectional schematic diagram of the positioning mechanism in the utility model.
[0028] Legend Explanation:
[0029] 1. Bottom plate; 2. Reaction tank; 3. Sampling pipe; 4. Liquid outlet pipe; 5. Support column; 6. Top plate; 7. Reagent tank; 8. Sewage pipe; 9. Sphere; 10. Handwheel; 11. Rotating rod; 12. Baffle; 13. Water inlet; 14. Liquid inlet; 15. Liquid outlet; 16. Limit rod; 17. Spring; 18. Limit groove; 19. Connecting pipe; 20. Stepper motor; 21. Rotating shaft; 22. Connecting rod; 23. Stirring blade; 24. Through groove; 25. Runner; 26. Slide groove; 27. Sleeve; 28. U-shaped connecting frame; 29. Slide block; 30. Cross bar; 31. Slide ball; 32. Lifting plate. Detailed implementation manners
[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0031] Referring to Figure 1 , an embodiment provided by the present invention: An experimental device for sewage flocculation, including a bottom plate 1, a reaction tank 2 for carrying out flocculation reaction is fixedly connected to the top of the bottom plate 1. The reaction tank 2 is made of corrosion-resistant materials to withstand the erosion of various chemical substances, which is prior art. A stirring mechanism is arranged inside the reaction tank 2. A sampling pipe 3 is fixedly connected to the front of the reaction tank 2. The number of the sampling pipes 3 is set to be multiple, and the multiple sampling pipes 3 are arranged at different heights of the reaction tank 2 to obtain representative samples. A liquid outlet pipe 4 is fixedly connected to the right side of the reaction tank 2. The bottom plate 1 is fixedly connected with a support column 5 at the top. The top of the support column 5 is fixedly connected with a top plate 6. A reagent tank 7 for adding flocculant is fixedly connected to the top of the top plate 6. A liquid pump is arranged inside the reagent tank 7 to provide power to pump the flocculant into the sphere 9. A mixing mechanism is arranged at the top of the reagent tank 7.
[0032] Referring to Figure 1 、 Figure 4 、 Figure 5, the mixing mechanism includes a sphere 9 for delivering the sewage to be treated and the flocculant into the reaction tank 2 in a certain proportion. The inside of the sphere 9 is connected to the inside of the chemical tank 7. The inside of the sphere 9 is connected to the inside of the reaction tank 2 through a connecting pipe 19. A sewage pipe 8 for inputting sewage into the sphere 9 is fixedly connected to the right side of the sphere 9. The right side of the sewage pipe 8 is connected to an external sewage tank. A rotating rod 11 is rotatably connected to the inner wall of the sphere 9. A handwheel 10 is fixedly connected to the front of the rotating rod 11. By setting the handwheel 10, it is convenient for the staff to rotate the rotating rod 11, which is convenient and labor-saving. A baffle 12 in the shape of a quarter circle is fixedly connected to the surface of the rotating rod 11. By setting the baffle 12, it can control whether the inside of the sphere 9 is connected to the external pipeline. The outer wall of the baffle 12 fits the inner wall of the sphere 9, and a sealing layer is provided on the outer wall of the baffle 12 to ensure the sealing performance. An inlet 13 is opened on the right side of the sphere 9, a liquid inlet 14 is opened at the bottom of the sphere 9, and a liquid outlet 15 is opened on the left side of the sphere 9. A positioning mechanism is provided inside the rotating rod 11. The handwheel 10 is initially set in a vertical state, so that the baffle 12 is in a position blocking the liquid inlet 14.
[0033] Refer to Figure 4 - Figure 5 , the positioning mechanism includes a limiting rod 16. An arc surface is provided on the surface of the end of the limiting rod 16 far from the center of the rotating rod 11. The limiting rod 16 is slidably installed on the inner wall of the rotating rod 11. The limiting rod 16 is elastically connected to the inner wall of the rotating rod 11 through a spring 17. The spring 17 applies an elastic force to the limiting rod 16 towards the end far from the center of the rotating rod 11. A limiting groove 18 matching the limiting rod 16 is opened on the inner wall of the sphere 9. The number of the limiting grooves 18 is set to be multiple. The multiple limiting grooves 18 are arranged at equal angular intervals in a ring on the inner wall of the sphere 9. Each limiting groove 18 is spaced 90 degrees apart to ensure the position stability of the rotating rod 11 and the baffle 12.
[0034] Refer to Figure 2 - Figure 3 , the stirring mechanism includes a stepper motor 20, which can accurately control the rotation angle of its output shaft, facilitating the adjustment of the rotation speed and frequency of its rotating shaft. The stepper motor 20 is fixedly installed on the top of the reaction tank 2. A rotating shaft 21 arranged vertically is fixedly connected to the bottom of the output shaft of the stepper motor 20. A connecting rod 22 arranged horizontally is fixedly connected to the circumferential surface of the rotating shaft 21. A stirring blade 23 for increasing the reaction rate is fixedly connected to the end of the connecting rod 22 far from the rotating shaft 21, increasing the mixing uniformity of the sewage and the chemical, so that the suspended matter in the sewage is quickly flocculated. Through grooves 24 for facilitating the flow of water are opened on the surface of the stirring blade 23 to improve the mixing uniformity. The stirring mechanism further includes a runner 25, which is fixedly installed on the bottom of the circumferential surface of the rotating shaft 21. A spiral chute 26 is opened on the circumferential surface of the runner 25.
[0035] Reference Figure 2 - Figure 3 Figure 3 , the stirring mechanism further includes a sleeve 27 sleeved on the outer wall of the rotating shaft 21. The sleeve 27 is rotatably connected to the rotating shaft 21 through a bearing to improve the stability of the rotating shaft 21 during rotation. The left and right ends of the sleeve 27 are fixedly connected with U-shaped connecting frames 28 that play a supporting and guiding role. One end of the U-shaped connecting frame 28 away from the sleeve 27 is fixedly installed at the bottom of the inner wall of the reaction tank 2. The stirring mechanism further includes a slider 29 slidably installed on the surface of the U-shaped connecting frame 28. The sliding direction of the slider 29 is up and down. The number of sliders 29 is set to two groups. One side of the two groups of sliders 29 close to each other is fixedly connected with a cross bar 30. One end of the cross bar 30 away from the sleeve 27 is fixedly connected with a sliding ball 31 that can slide inside the chute 26. The sliding ball 31 is slidably installed on the inner wall of the chute 26. The front and back sides of the cross bar 30 are fixedly connected with lifting plates 32. The lifting plates 32 move up and down reciprocally to prevent the suspended solids in the sewage from settling to the bottom, thereby improving the reaction rate between the medicament and the suspended solids in the sewage.
[0036] Working principle: When in use, when it is necessary to add a flocculant into the reaction tank 2 in proportion, by rotating the hand wheel 10, the rotation of the hand wheel 10 drives the rotation of the rotating rod 11, and the rotation of the rotating rod 11 drives the rotation of the baffle 12. When the baffle 12 rotates to the top of the sphere 9, the baffle 12 will not block the liquid inlet 14 and the water inlet 13. At this time, both the sewage and the flocculant will be synchronously sucked into the inside of the sphere 9, so as to complete the preliminary mixing and enter the inside of the reaction tank 2 together. By controlling the time when the baffle 12 does not block the liquid inlet 14 and the water inlet 13, the amounts of the flocculant and the sewage entering the inside of the reaction tank 2 can be conveniently calculated, so that the mixing ratio of the flocculant and the sewage input into the reaction tank 2 can be accurately controlled, avoiding the waste of the flocculant and improving the efficiency of the reuse treatment.
[0037] When the rotating rod 11 rotates, it will also drive the limiting rod 16 to move together. When the limiting rod 16 moves to the position of the limiting groove 18, the limiting rod 16 will enter the inside of the limiting groove 18 under the elastic force of the spring 17. At this time, the limiting rod 16 is stuck inside the limiting groove 18, improving the installation stability of the rotating rod 11 when it is stationary and solving the problem that the control accuracy decreases due to the force-driven rotation of the baffle 12 during the normal working process.
[0038] By starting the power supply of the stepping motor 20, the stepping motor 20 works to drive the rotation of the rotating shaft 21. The rotation of the rotating shaft 21 drives the connecting rod 22 and the stirring blades 23 to rotate together to stir the sewage, thereby improving the uniformity of the mixing of the sewage and the flocculant and increasing the reaction rate.
[0039] When the rotating shaft 21 rotates, it will also drive the rotating wheel 25 to rotate. The rotation of the rotating wheel 25 drives the sliding ball 31, the cross bar 30 and the slider 29 to move up and down reciprocally together, thereby agitating the sewage at the bottom of the reaction tank 2, reducing the possibility of suspended solids in the sewage sinking to the bottom, and further improving the mixing uniformity and the reaction rate.
[0040] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A test device for sewage flocculation, comprising a bottom plate (1), characterized in that: A reaction tank (2) is fixedly connected to the top of the bottom plate (1), a stirring mechanism is arranged inside the reaction tank (2), a sampling tube (3) is fixedly connected to the front of the reaction tank (2), a liquid outlet pipe (4) is fixedly connected to the right side of the reaction tank (2), a support column (5) is fixedly connected to the top of the bottom plate (1), a top plate (6) is fixedly connected to the top of the support column (5), a medicine box (7) is fixedly connected to the top of the top plate (6), a mixing mechanism is arranged on the top of the medicine box (7), and the mixing mechanism includes a sphere (9), the sphere ( The right side of the sphere (9) is fixedly connected to a sewage pipe (8); the sphere (9) is rotatably connected to a rotating rod (11) on the inner wall; the front side of the rotating rod (11) is fixedly connected to a hand wheel (10); the surface of the rotating rod (11) is fixedly connected to a baffle (12); the outer wall of the baffle (12) is in contact with the inner wall of the sphere (9); the right side of the sphere (9) is provided with a water inlet (13); the bottom of the sphere (9) is provided with a liquid inlet (14); the left side of the sphere (9) is provided with a liquid outlet (15); and a positioning mechanism is provided inside the rotating rod (11).
2. A test device for sewage flocculation according to claim 1, characterized in that: The interior of the sphere (9) is connected to the interior of the reagent box (7), and the interior of the sphere (9) is connected to the interior of the reaction tank (2) via a connecting pipe (19).
3. A test device for sewage flocculation according to claim 1, characterized in that: The positioning mechanism comprises a limiting rod (16), the limiting rod (16) is slidably mounted on the inner wall of the rotating rod (11), and the limiting rod (16) is elastically connected to the inner wall of the rotating rod (11) via a spring (17).
4. A test device for sewage flocculation according to claim 1, characterized in that: The inner wall of the sphere (9) is provided with a limiting groove (18), the number of the limiting grooves (18) is set to be multiple, and the multiple limiting grooves (18) are arranged on the inner wall of the sphere (9) at annular equiangular intervals.
5. The test device for sewage flocculation according to claim 1, characterized in that: The stirring mechanism comprises a stepping motor (20), the stepping motor (20) is fixedly mounted on the top of the reaction tank (2), the bottom of the output shaft of the stepping motor (20) is fixedly connected to a rotating shaft (21), the circumferential surface of the rotating shaft (21) is fixedly connected to a connecting rod (22), one end of the connecting rod (22) away from the rotating shaft (21) is fixedly connected to a stirring blade (23), and a through groove (24) is provided on the surface of the stirring blade (23).
6. A test device for sewage flocculation according to claim 5, characterized in that: The stirring mechanism further comprises a rotating wheel (25), wherein the rotating wheel (25) is fixedly mounted on the bottom of the circumferential surface of the rotating shaft (21), and a sliding groove (26) is provided on the circumferential surface of the rotating wheel (25).
7. A test device for sewage flocculation according to claim 6, characterized in that: The stirring mechanism further comprises a sleeve (27), wherein the sleeve (27) is sleeved on the outer wall of the rotating shaft (21), and the left and right ends of the sleeve (27) are fixedly connected to U-shaped connecting frames (28), and the end of the U-shaped connecting frame (28) away from the sleeve (27) is fixedly mounted on the bottom of the inner wall of the reaction tank (2).
8. A test device for sewage flocculation according to claim 7, characterized in that: The stirring mechanism also includes a slider (29), which is slidably mounted on the surface of the U-shaped connecting frame (28). The number of the sliders (29) is set to two groups. The two groups of sliders (29) are fixedly connected to a cross bar (30) on the side close to each other. The end of the cross bar (30) away from the sleeve (27) is fixedly connected to a sliding ball (31). The sliding ball (31) is slidably mounted on the inner wall of the sliding groove (26). The front and rear sides of the cross bar (30) are fixedly connected to lifting plates (32).