Flocculation equipment for sewage treatment plant

Abstract

The utility model discloses flocculation equipment for a sewage treatment plant, and relates to the technical field of flocculation equipment. The device comprises a stirring tank, a stirring assembly is arranged in the stirring tank, a discharging pipe is fixedly installed at the bottom end of the stirring tank, a screening box is fixedly installed at the bottom end of the discharging pipe, an inclined filter screen is arranged in the screening box, one end of the filter screen penetrates through the screening box, and the other end of the filter screen penetrates through the screening box. A first discharging opening used in cooperation with the filter screen is formed in one side of the screening box in a penetrating mode, a treatment box is fixedly installed on the edge of the top end of the stirring tank, first shaking assemblies are arranged on the two adjacent sides of the first discharging opening correspondingly, each first shaking assembly comprises two vertical plates, and the vertical plates are fixedly connected with the top end of the filter screen; according to the utility model, when flocculated impurities are filtered, the filter screen does not need to be moved out, and the impurities are manually cleaned, so that the filter screen is prevented from being blocked by the impurities, and the sewage treatment effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of flocculation equipment technology, specifically a flocculation device for wastewater treatment plants. Background Technology

[0002] Publication number "CN218025701U" discloses a flocculation device for a wastewater treatment plant, including a flocculation tank and four hydraulic columns. An outlet sill is provided at the upper rear end of the flocculation tank, and each hydraulic column has a fixed block at its output end. In this invention, after the stirring frame is fully stirred by a motor, it is allowed to stand for an appropriate time. Then, the flocculated impurities are filtered through the hydraulic columns and displayed on a screen. After the flocculated impurities are cleaned, the hydraulic columns are lowered for the next use.

[0003] However, the above technologies require moving the filter screen upwards to remove it from the flocculation tank before cleaning the impurities after flocculation. Then, the impurities need to be cleaned manually. When filtering flocculated impurities, the filter screen is stationary, which makes it easy for the flocculated impurities to clog the filter screen and reduce the efficiency of wastewater treatment. Utility Model Content

[0004] To address the problem of needing to manually remove impurities and the tendency for flocculated impurities to clog screens, the purpose of this invention is to provide a flocculation device for wastewater treatment plants.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a flocculation device for a sewage treatment plant, comprising a mixing tank, an internal mixing assembly, a feed pipe fixedly installed at the bottom of the mixing tank, a screening box fixedly installed at the bottom of the feed pipe, an inclined filter screen inside the screening box, one end of the filter screen penetrating through the screening box, a first discharge port for cooperating with the filter screen being opened through one side of the screening box, a processing box fixedly installed at the top edge of the mixing tank, and first shaking assemblies provided on both sides adjacent to the first discharge port, the first shaking assemblies comprising two vertical plates, the vertical plates being fixed to the top of the filter screen. The screen is connected, and the vertical plate is located at the edge of the filter screen. A connecting plate is fixedly installed on the outer side of the vertical plate. Both sides of the screening box are provided with slots that cooperate with the connecting plate. A moving rod is fixedly installed at the bottom of the connecting plate. A fixed plate is slidably sleeved on the outside of the moving rod. The fixed plate is fixed on the screening box. A moving plate is fixedly installed at the bottom of the moving rod. A semicircle is fixedly installed at the bottom of the moving plate. A rotating shaft is rotatably passed through the bottom of the screening box. A cam that cooperates with the semicircle is fixedly installed on the outside of the rotating shaft. A first motor is fixedly installed on the side of the screening box near the connecting plate by an L-shaped block. The first motor is fixedly connected to the rotating shaft below.

[0006] Preferably, the processing box is equipped with a screen inside, one end of which penetrates the processing box. A second discharge port for use with the screen is opened through one side of the processing box. A second shaking component is provided on both sides of the second discharge port. The first shaking component and the second shaking component have the same structure. The vertical plate is fixed to the top of the screen and is located at the edge of the screen. The fixing plate is fixed to the processing box. The rotating shaft rotates through the processing box. A slot for use with the connecting plate is opened through the processing box. The upper rotating shaft and the lower rotating shaft are connected by a synchronous belt drive. A placement plate is fixedly installed on the upper surface of the mixing tank. The placement plate is located near the first discharge port.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. This application enables the filtration of flocculated impurities without removing the filter screen or manually cleaning the impurities, thus avoiding clogging of the filter screen and improving the wastewater treatment effect.

[0009] 2. This application enables preliminary filtration of impurities in wastewater, making subsequent wastewater treatment easier. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the internal structure of the screening box in this utility model.

[0013] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0014] Figure 4 This is a schematic diagram of the internal structure of the processing box in this utility model.

[0015] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle.

[0016] Figure 6 This is a schematic diagram of the internal structure of the mixing tank in this utility model.

[0017] Figure 7 This is a schematic diagram of the connection structure between the trapezoidal plate and the baffle in this utility model.

[0018] In the diagram: 1. Mixing tank; 10. Feed pipe; 11. Mixing assembly; 12. Screening box; 13. Filter screen; 14. First discharge port; 15. Processing box; 2. First shaking assembly; 20. First motor; 21. Vertical plate; 22. Connecting plate; 23. Empty trough; 24. Moving rod; 25. Fixed plate; 26. Moving plate; 27. Semicircle; 28. Rotating shaft; 29. ​​Cam; 3. Screen; 30. Second discharge port; 31. Second shaking assembly; 32. Placement plate; 4. U-shaped plate; 41. Gear; 42. Mixing shaft; 43. Sleeve; 44. Mixing blade; 45. Second motor; 5. Spring; 6. Trapezoidal plate; 7. Baffle; 8. First support leg; 81. Second support leg. Detailed Implementation

[0019] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: Figure 1-7 As shown, this utility model provides a flocculation device for a sewage treatment plant, including a mixing tank 1. The mixing tank 1 is equipped with a mixing component 11 inside. A feed pipe 10 is fixedly installed at the bottom end of the mixing tank 1. A screening box 12 is fixedly installed at the bottom end of the feed pipe 10. An inclined filter screen 13 is installed inside the screening box 12. One end of the filter screen 13 passes through the screening box 12. A first discharge port 14 for use with the filter screen 13 is opened through one side of the screening box 12. A processing box 15 is fixedly installed at the top edge of the mixing tank 1. A first shaking component 2 is provided on both sides of the first discharge port 14. The first shaking component 2 includes two vertical plates 21. The vertical plates 21 are fixedly connected to the top of the filter screen 13 and are located at the edge of the filter screen 13. A connecting plate 22 is fixedly installed on the outside of the vertical plates 21. A slot 23 for use with the connecting plate 22 is opened through both sides of the screening box 12.

[0021] A movable rod 24 is fixedly installed at the bottom end of the connecting plate 22. A fixed plate 25 is slidably sleeved on the outside of the movable rod 24. The fixed plate 25 is fixed on the screening box 12. A movable plate 26 is fixedly installed at the bottom end of the movable rod 24. A semicircle 27 is fixedly installed at the bottom end of the movable plate 26. A rotating shaft 28 is rotatably passed through the bottom of the screening box 12. A cam 29 that cooperates with the semicircle 27 is fixedly installed on the outside of the rotating shaft 28. A first motor 20 is fixedly installed on the side of the screening box 12 near the connecting plate 22 by an L-shaped block. The first motor 20 is fixedly connected to the rotating shaft 28 below.

[0022] The processing box 15 is equipped with a screen 3 inside, one end of which passes through the processing box 15. A second discharge port 30 for use with the screen 3 is opened through one side of the processing box 15. A second shaking component 31 is provided on both sides of the second discharge port 30. The structure of the first shaking component 2 and the second shaking component 31 is the same. The vertical plate 21 is fixed to the top of the screen 3 and is located at the edge of the screen 3. The fixing plate 25 is fixed on the processing box 15. The rotating shaft 28 rotates through the processing box 15. A slot 23 for use with the connecting plate 22 is opened through the processing box 15. The upper rotating shaft 28 and the lower rotating shaft 28 are connected by a synchronous belt drive. A placement plate 32 is fixedly installed on the upper surface of the mixing tank 1. The placement plate 32 is close to the side of the first discharge port 14. The synchronous belt drive is carried out by a pulley and a transmission belt. A toothed type or other synchronous drive can be selected. The synchronous belt is opposite to the first motor 20.

[0023] The stirring assembly 11 includes a U-shaped plate 4, which is fixed to the stirring tank 1. Two meshing gears 41 are provided on the lower inner surface of the U-shaped plate 4. A stirring shaft 42 is fixedly installed in the middle of each gear 41. The stirring shaft 42 rotates through the U-shaped plate 4 and the stirring tank 1. Several evenly distributed sleeves 43 are fixedly installed on the outside of each of the two stirring shafts 42. The sleeves 43 on the two stirring shafts 42 intersect each other. Several evenly distributed annular stirring blades 44 are fixedly installed on the outside of each sleeve 43. A second motor 45 is fixedly installed at the top of the U-shaped plate 4. The second motor 45 is fixedly connected to one of the stirring shafts 42. By setting the stirring shaft 42 and stirring blades 44, when the second motor 45 starts, it drives one of the stirring shafts 42 and the corresponding gear 41, as well as the sleeve 43 and stirring blades 44 on the stirring shaft 42 to rotate. The meshing between the two gears 41 drives the other stirring shaft 42 and the sleeve 43 and stirring blades 44 on the stirring shaft 42 to rotate in the opposite direction, thereby making the sewage and flocculant mix more evenly, accelerating the flocculation reaction speed, improving the flocculation effect, and improving the sewage treatment quality.

[0024] A spring 5 is fixedly installed between each fixed plate 25 and the corresponding movable plate 26. The spring 5 is located outside the movable rod 24. By setting the spring 5, when the movable plate 26 moves up and down, it drives the spring 5 to contract back and forth, thereby increasing the shaking frequency of the filter screen 13 and the screen 3, making the shaking effect of the filter screen 13 and the screen 3 better.

[0025] A trapezoidal plate 6 is fixedly installed on the side of the filter screen 13 near the first discharge port 14 and on the side of the screen 3 near the second discharge port 30. Baffles 7 are fixedly installed on both sides of the trapezoidal plate 6. By setting the trapezoidal plate 6, it is not necessary to select a large impurity collection box. Furthermore, the design of the baffles 7 prevents impurities from sliding off the edge of the trapezoidal plate 6 when they are discharged, thus avoiding the need for manual cleaning later and wasting manpower.

[0026] Two symmetrically distributed first support legs 8 are fixedly installed at the bottom of the processing box 15. The first support legs 8 are fixed to the mixing tank 1. Three evenly distributed second support legs 81 are fixedly installed at the bottom of the mixing tank 1. The second support legs 81 are fixed to the screening box 12. By setting the first support legs 8, the processing box 15 is supported, and the stability of the processing box 15 is further improved. Similarly, the setting of the second support legs 81 supports the mixing tank 1, and further improves the stability of the mixing tank 1.

[0027] The curved shape of the stirring blade 44 helps the flocculant to contact the wastewater more evenly. Wastewater and flocculant in different areas can be fully stirred and mixed, making the flocculation reaction more comprehensive and efficient, further improving the flocculation effect and enhancing the quality of wastewater treatment.

[0028] The bottom of the treatment box 15 and the bottom of the screening box 12 are both conical, while the bottom of the mixing tank 1 is frustum-shaped, which makes it easier for water to be discharged from the treatment box 15 into the mixing tank 1, and then the water in the mixing tank 1 is discharged into the screening box 12 and then discharged from the screening box 12.

[0029] Working principle: In actual use, start the second motor 45 and the first motor 20 in the stirring assembly 11, connect the sewage pipe to the drain pipe on the treatment tank 15, and then the sewage first enters the treatment tank 15. Then, the impurities and large soil in the sewage are initially filtered through the screen 3, so that the impurities and large soil are directly retained on the screen 3. The sewage is discharged from the treatment tank 15 into the mixing tank 1. Add an appropriate amount of flocculant through the feed pipe at the top of the mixing tank 1. Then, the flocculant and sewage are mixed by the stirring assembly 11 to accelerate the mixing of flocculant and sewage. After mixing and standing for a period of time, open the valve on the feed pipe 10 to discharge the treated sewage into the screening box 12. Then, the flocculated impurities are filtered through the filter screen 13, and the treated sewage is discharged from the screening box 12.

[0030] The start of the first motor 20 drives the rotating shaft 28 and cam 29 in the first shaking assembly 2 to rotate. During the rotation of the cam 29, the cooperation between it and the semicircle 27 causes the moving rod 24 to slide up and down in the fixed plate 25. The up and down movement of the moving rod 24 causes the connecting plate 22 to move up and down in the slot 23. Subsequently, the movement of the connecting plate 22 causes the vertical plate 21 and the filter screen 13 to shake up and down in the screening box 12, so that the flocculated impurities on the filter screen 13 are discharged from the first discharge port 14, thereby avoiding the flocculated impurities from clogging the filter screen 13. Since the two rotating shafts 28 are connected by a synchronous belt, and the first shaking assembly 2 and the second shaking assembly 31 have the same structure, the screen 3, under the action of the second shaking assembly 31, causes the impurities on the screen 3 to be discharged from the second discharge port 30, thereby avoiding the impurities in the sewage from clogging the screen 3. Before sewage treatment, the impurity collection box is placed on the placement plate 32 and at the position of the first discharge port 14.

[0031] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A flocculation plant for a sewage treatment plant, comprising a mixing tank (1), characterised in that: The inside of the stirring tank (1) is provided with a stirring assembly (11), the bottom end of the stirring tank (1) is fixedly installed with a discharging pipe (10), the bottom end of the discharging pipe (10) is fixedly installed with a screening box (12), the inside of the screening box (12) is provided with an inclined filter screen (13), one end of the filter screen (13) penetrates the screening box (12), one side of the screening box (12) is provided with a first discharging port (14) matched with the filter screen (13), the top edge of the stirring tank (1) is fixedly installed with a treatment box (15), the adjacent two sides of the first discharging port (14) are provided with a first shaking assembly (2), the first shaking assembly (2) comprises two vertical plates (21), the vertical plates (21) are fixedly connected with the top end of the filter screen (13), and the vertical plates (21) are located at the edges of the filter screen (13), the outer sides of the vertical plates (21) are fixedly installed with connecting plates (22), and the two sides of the screening box (12) are provided with air grooves (23) matched with the connecting plates (22). The bottom end of the connecting plate (22) is fixedly installed with a moving rod (24), the outside of the moving rod (24) is slidably sleeved with a fixed plate (25), the fixed plate (25) is fixed on the screening box (12), the bottom end of the moving rod (24) is fixedly installed with a moving plate (26), the bottom end of the moving plate (26) is fixedly installed with a semicircle (27), the bottom of the screening box (12) is rotatably penetrated with a rotating shaft (28), the outside of the rotating shaft (28) is fixedly installed with a cam (29) matched with the semicircle (27), one side of the screening box (12) close to the connecting plate (22) is fixedly installed with a first motor (20) through an L-shaped block, and the first motor (20) is fixedly connected with the lower rotating shaft (28).

2. A flocculation apparatus for a sewage treatment plant as claimed in claim 1 wherein, The inside of the treatment box (15) is provided with a screen (3), one end of the screen (3) penetrates the treatment box (15), one side of the treatment box (15) is provided with a second discharging port (30) matched with the screen (3), the adjacent two sides of the second discharging port (30) are provided with a second shaking assembly (31), the first shaking assembly (2) and the second shaking assembly (31) are identical in structure, wherein the vertical plates (21) are fixedly connected with the top end of the screen (3), and the vertical plates (21) are located at the edges of the screen (3), wherein the fixed plate (25) is fixed on the treatment box (15), wherein the rotating shaft (28) rotatably penetrates the treatment box (15), the treatment box (15) is provided with an air groove (23) matched with the connecting plate (22), the upper rotating shaft (28) and the lower rotating shaft (28) are connected through a synchronous belt transmission, and the upper surface of the stirring tank (1) is fixedly installed with a placing plate (32), one side of the placing plate (32) close to the first discharging port (14).

3. A flocculation apparatus for use in a sewage treatment plant as claimed in claim 1, characterised in that, The stirring assembly (11) comprises a concave plate (4) fixed on the stirring tank (1), the inner wall lower surface of the concave plate (4) is provided with two intermeshing gears (41), the middle part of the two gears (41) is fixedly installed with a stirring shaft (42), the stirring shaft (42) rotates and penetrates the concave plate (4) and the stirring tank (1), the outer part of the two stirring shafts (42) is fixedly installed with a plurality of uniformly distributed sleeves (43), the sleeves (43) on the two stirring shafts (42) are crossed, the outer part of the sleeve (43) is fixedly installed with a plurality of annularly and uniformly distributed stirring blades (44), the top end of the concave plate (4) is fixedly installed with a second motor (45), and the second motor (45) is fixedly connected with one of the stirring shafts (42).

4. A flocculator apparatus for use in a sewage treatment plant as claimed in claim 2 wherein, The spring (5) is fixedly installed between each fixed plate (25) and the corresponding movable plate (26) and located outside the movable rod (24).

5. A flocculation apparatus for use in a sewage treatment plant as claimed in claim 2, characterised in that, The trapezoidal plate (6) is fixedly installed on one side of the filter screen (13) close to the first discharge port (14) and one side of the screen (3) close to the second discharge port (30), and the baffle (7) is fixedly installed on the two sides of the trapezoidal plate (6).

6. A flocculation apparatus for use in a sewage treatment plant as claimed in claim 1 wherein, The bottom end of the treatment box (15) is fixedly installed with two symmetrically distributed first supporting legs (8), the first supporting legs (8) are fixed on the stirring tank (1), and the bottom end of the stirring tank (1) is fixedly installed with three annularly and uniformly distributed second supporting legs (81), and the second supporting legs (81) are fixed on the screening box (12).

7. A flocculator apparatus for use in a sewage treatment plant as claimed in claim 3 wherein, The stirring blade (44) is of a curved shape.

8. A flocculation apparatus for use in a sewage treatment plant as claimed in claim 1 wherein, The bottom end of the treatment box (15) and the bottom end of the screening box (12) are of a conical shape, and the bottom end of the stirring tank (1) is of a circular truncated cone shape.

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