Flocculation equipment for sewage treatment

Abstract

The utility model discloses flocculation equipment for sewage treatment, which relates to the technical field of sewage treatment and comprises a top frame, a water outlet pipe is fixed at the bottom of one side of the top frame, a through hole is formed in the middle of the bottom of the top frame, a flocculation box is fixedly mounted at the bottom of the through hole, and a mounting hole is formed in the middle of the top of the top frame. A central cylinder is fixedly mounted on the inner wall of the mounting hole, a sewage inlet pipe extending out of the flocculation box is fixed to one side of the central cylinder, a flocculant injection pipe is fixed to one side of the top of the sewage inlet pipe, a central hole is formed in the middle of the top of the central cylinder, and a rising cylinder is fixed to the inner wall of the central hole. According to the utility model, the flocculation precipitate can be driven to rise and discharged along the slag discharge pipe, so that the performance of conveniently discharging the flocculation precipitate is realized, the continuous flocculation operation of sewage can be realized, the working efficiency of the whole equipment is improved, the flocculation efficiency and the flocculation speed of the sewage can be fully improved, and the flocculation capability of the sewage is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a flocculation device for sewage treatment. Background Art

[0002] In order to make the wastewater meet the discharge standards or be reused after treatment, various chemical agents need to be used in the treatment process. Commonly used chemical agents include flocculants, sometimes also called coagulants, which can be used as a means to strengthen solid-liquid separation and are used in process links such as primary sedimentation tanks, secondary sedimentation tanks, flotation tanks, and tertiary treatment or advanced treatment.

[0003] After retrieval, a new type of flocculation device with the patent publication number CN211770479U relates to the field of environmental protection equipment. The flocculation device includes a gasket flocculation tank inlaid with a sealing ring. The flocculation tank is provided with a feeding pipe, and a leakage groove is opened on the feeding pipe. The feeding pipe extends out of the outside of the sealing ring gasket, and a sealing pipe is sleeved outside the feeding pipe. An electric motor is installed on the outer wall of the flocculation tank, and several stirring blades are installed on the output rotating shaft. This flocculation device can directly put the flocculant at the place where the suspended substances at the bottom of the sewage gather and can stir evenly, which can reduce the dosage of the flocculant and reduce the cost of flocculation treatment.

[0004] In the process of implementing the above scheme, it is found that the following problems in the prior art have not been well solved: When flocculating and precipitating sewage in the prior art, generally, the coagulant is completely mixed with the sewage by stirring. However, the flocculated sediment of the sewage will fall to the bottom of the flocculation tank. How to discharge the sediment and continuously carry out the flocculation operation is a problem that people need to solve. Therefore, it is urgent to design an air compressor structure that reduces the vehicle displacement to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a flocculation device for sewage treatment is proposed. Its advantages are that it realizes the performance of facilitating the discharge of flocculated sediment and can realize the continuous flocculation operation of sewage.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A flocculation device for sewage treatment, including a top frame. One side of the bottom of the top frame is fixedly provided with a water outlet pipe, and a through hole is opened at the middle position of the bottom of the top frame. A flocculation tank is fixedly installed at the bottom of the through hole. An installation hole is opened at the middle position of the top of the top frame, and a central cylinder is fixedly installed on the inner wall of the installation hole. One side of the central cylinder is fixedly provided with a sewage inlet pipe extending out of the flocculation tank. One side of the top of the sewage inlet pipe is fixedly provided with a flocculant injection pipe. A central hole is opened at the middle position of the top of the central cylinder, and a rising cylinder is fixedly installed on the inner wall of the central hole. One side of the top of the rising cylinder is fixedly provided with a slag discharge pipe. A first base hole is opened at the middle position of the top of the rising cylinder, and a central shaft is rotatably connected to the inner wall of the first base hole through a sealing bearing. A screw blade that fits on the inner wall of the rising cylinder is fixedly installed on the outer wall of the central shaft. Stirring components are arranged at equal intervals inside the central cylinder, and a rotating mechanism is arranged between the top of the stirring components and the top of the central shaft.

[0007] Through the above technical solutions: The performance of facilitating the discharge of flocculated precipitates is achieved, and the operation of continuous flocculation of sewage can be realized.

[0008] The utility model is further arranged such that the stirring components include second base holes opened at equal intervals at the top of the central cylinder, and drive shafts are rotatably connected to the inner walls of the second base holes through sealing bearings. Stirring plates are fixedly installed on the outer walls of the drive shafts at equal intervals. The stirring plates are located in the gap between the inner wall of the central cylinder and the outer wall of the rising cylinder. The rotating mechanism includes an installation frame fixedly installed on the top of the top frame, and a plurality of third base holes are opened on the installation frame. The top of the drive shaft is rotatably connected to the inner wall of the third base hole through a bearing. A motor is fixedly installed on the top of the installation frame, and the output shaft of the motor is fixedly connected to the top of the central shaft. A driving gear is fixedly installed on the top of the outer wall of the central shaft, and driven gears are fixedly installed on the top of the outer walls of the drive shafts. The driven gears are meshed with the driving gear.

[0009] Through the above technical solutions: The sewage and flocculant that enter the central cylinder simultaneously can be fully stirred and mixed, so that the sewage can be fully flocculated and precipitated.

[0010] The utility model is further arranged such that a sputtering table is fixedly installed on the outer wall of the rising cylinder near the bottom of the central cylinder, and the diameter of the sputtering table is larger than that of the central cylinder. The top surface of the sputtering table is designed to be inclined.

[0011] Through the above technical solutions: The mixture of sewage and flocculant that falls out of the central cylinder is rebounded, the flow intensity of the mixture is increased, and the flocculation ability is enhanced.

[0012] The utility model is further arranged such that scraping plates are fixedly installed on the outer wall of the bottom of the central shaft at equal intervals, and one side of the scraping plates is attached to the inner wall of the flocculation tank.

[0013] With the above technical solutions, the flocculation speed and effect in the flocculation tank can be increased, and the inner wall of the flocculation tank can also be cleaned during subsequent slag discharge.

[0014] The present utility model is further configured such that a slag discharge pipe is fixed to the bottom of the flocculation tank, and a threaded groove is provided at the bottom of the outer wall of the slag discharge pipe, and a bottom cover is screwed onto the threaded groove.

[0015] With the above technical solutions, it is convenient to completely discharge the remaining sediment along the slag discharge pipe.

[0016] The present utility model is further configured such that a filter screen is fixedly installed on the inner wall of the through hole, and the filter screen is sleeved on the outer wall of the central cylinder.

[0017] With the above technical solutions, it is possible to prevent some sediment from being discharged from the water outlet pipe along with the water flow.

[0018] The present utility model is further configured such that a support frame is fixedly installed at the bottom of the top frame.

[0019] With the above technical solutions, it is convenient to support the entire device.

[0020] The beneficial effects of the present utility model are as follows:

[0021] 1. For the flocculation device for sewage treatment, through the cooperation of the central cylinder, the rising cylinder, the sewage inlet pipe, the flocculant injection pipe, the central shaft, the auger blades, the stirring assembly and the rotating mechanism, the rotating mechanism drives the central shaft, the auger blades and the stirring assembly to rotate synchronously. On the one hand, it can fully stir and mix the sewage and the flocculant that enter the central cylinder at the same time, so that the sewage can be fully flocculated and precipitated. On the other hand, it can drive the sewage flocculation sediment deposited at the bottom of the flocculation tank to rise under the action of the rotating auger blades and be discharged along the slag discharge pipe, realizing the performance of facilitating the discharge of the flocculation sediment and being able to realize the continuous flocculation operation of the sewage, improving the working efficiency of the entire device.

[0022] 2. For the flocculation device for sewage treatment, through the arranged sputtering table and the scraping plate, the mixture of the stirred sewage and the flocculant will fall on the sputtering table to form a rebounding phenomenon, and the scraping plate will rotate when the central shaft rotates, so that the mixture of the sewage and the flocculant can be further stirred and mixed in the flocculation tank, fully improving the flocculation efficiency and speed of the sewage, and when the remaining sediment at the bottom of the flocculation tank is discharged subsequently, the inner wall of the flocculation tank can be cleaned by the rotating scraping plate, making the slag discharge complete. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a flocculation device for sewage treatment proposed by the present utility model;

[0024] Figure 2 Front cross-sectional view of a flocculation device for sewage treatment proposed by the present utility model;

[0025] Figure 3 Schematic diagram of the mounting holes and filter screen structure of a flocculation device for sewage treatment proposed by the present utility model;

[0026] Figure 4 Schematic diagram of the driving gear and driven gear structure of a flocculation device for sewage treatment proposed by the present utility model;

[0027] Figure 5 Schematic diagram of the auger blade and stirring plate structure of a flocculation device for sewage treatment proposed by the present utility model.

[0028] In the figure: 1. Top frame; 2. Flocculant injection pipe; 3. Sewage inlet pipe; 4. Flocculation tank; 5. Support frame; 6. Bottom cover; 7. Slag discharge pipe; 8. Water outlet pipe; 9. Central cylinder; 10. Rising cylinder; 11. Motor; 12. Mounting frame; 13. Sputtering table; 14. Scraping plate; 15. Central shaft; 16. Auger blade; 17. Stirring plate; 18. Transmission shaft; 19. Mounting hole; 20. Filter screen; 21. Driven gear; 22. Driving gear. Detailed implementation manners

[0029] The technical solutions of this patent will be further described in detail below in conjunction with the specific implementation manners.

[0030] The embodiments of this patent are described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain this patent and should not be construed as a limitation of this patent.

[0031] In the description of this patent, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent.

[0032] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0033] Referring to Figures 1-5 , a flocculation device for sewage treatment, comprising a top frame 1. A water outlet pipe 8 is fixedly installed at the bottom of one side of the top frame 1, and a through hole is opened in the middle position of the bottom of the top frame 1. A flocculation tank 4 is fixedly installed at the bottom of the through hole. A slag discharge pipe is fixedly installed at the bottom of the flocculation tank 4, and a thread groove is opened on the outer wall of the bottom of the slag discharge pipe. A bottom cover 6 is screwed on the thread groove. A support frame 5 is fixedly installed at the bottom of the top frame 1. An installation hole 19 is opened in the middle position of the top of the top frame 1, and a central cylinder 9 is fixedly installed on the inner wall of the installation hole 19. A sewage inlet pipe 3 extending out of the flocculation tank 4 is fixedly installed on one side of the central cylinder 9. A flocculant injection pipe 2 is fixedly installed on one side of the top of the sewage inlet pipe 3. A central hole is opened in the middle position of the top of the central cylinder 9, and a rising cylinder 10 is fixedly installed on the inner wall of the central hole. A slag discharge pipe 7 is fixedly installed on one side of the top of the rising cylinder 10. A first base hole is opened in the middle position of the top of the rising cylinder 10, and a central shaft 15 is rotatably connected to the inner wall of the first base hole through a sealed bearing. A screw blade 16 attached to the inner wall of the rising cylinder 10 is fixedly installed on the outer wall of the central shaft 15. Stirring assemblies are arranged at equal intervals inside the central cylinder 9, and a rotating mechanism is arranged between the top of the stirring assemblies and the top of the central shaft 15. The stirring assemblies include second base holes opened at equal intervals on the top of the central cylinder 9, and drive shafts 18 are rotatably connected to the inner walls of the second base holes through sealed bearings. Stirring plates 17 are fixedly installed at equal intervals on the outer walls of the drive shafts 18. The stirring plates 17 are located in the gap between the inner wall of the central cylinder 9 and the outer wall of the rising cylinder 10. The rotating mechanism includes an installation frame 12 fixedly installed on the top of the top frame 1, and a plurality of third base holes are opened on the installation frame 12. The top of the drive shaft 18 is rotatably connected to the inner wall of the third base hole through a bearing. A motor 11 is fixedly installed on the top of the installation frame 12, and the output shaft of the motor 11 is fixedly connected to the top of the central shaft 15. A driving gear 22 is fixedly installed on the outer wall of the top of the central shaft 15, and driven gears 21 are fixedly installed on the outer walls of the tops of the drive shafts 18. The driven gears 21 are meshed with the driving gear 22. By using the rotating mechanism to drive the central shaft 15, the screw blade 16 and the stirring assemblies to rotate synchronously, the sewage and the flocculant that enter the central cylinder 9 simultaneously can be fully stirred and mixed, so that the sewage can be fully flocculated and precipitated. Also, under the action of the rotating screw blade 16, the sewage flocculation precipitate deposited at the bottom of the flocculation tank 4 can be driven to rise, realizing the performance of facilitating the discharge of the flocculation precipitate, and the continuous flocculation operation of the sewage can be realized.

[0034] Specifically, a sputtering table 13 is fixedly installed on the outer wall of the rising cylinder 10 near the bottom of the central cylinder 9, and the diameter of the sputtering table 13 is larger than that of the central cylinder 9. The top surface of the sputtering table 13 is designed to be inclined. Through the action of the sputtering table 13, the sewage and flocculant mixture falling out of the central cylinder 9 can be rebounded, improving the flow intensity of the mixture and enhancing the flocculation ability.

[0035] Specifically, scraping plates 14 are fixedly installed at equal intervals on the outer wall of the bottom of the central shaft 15, and one side of each scraping plate 14 is attached to the inner wall of the flocculation tank 4. By scraping the inner wall of the flocculation tank 4 with the scraping plates 14, on the one hand, the flocculation speed and effect in the flocculation tank 4 can be increased, and on the other hand, the inner wall of the flocculation tank 4 can be cleaned during subsequent slag discharge, making the slag discharge complete.

[0036] Specifically, a filter screen 20 is fixedly installed on the inner wall of the through hole, and the filter screen 20 is sleeved on the outer wall of the central cylinder 9. The rising water is filtered by the filter screen 20 to prevent some precipitates from being discharged through the water outlet pipe 8 along with the water flow.

[0037] Working principle: When in use, the user drives the central shaft 15, the auger blades 16, and the driving gear 22 to rotate through the motor 11 in the rotating mechanism. The meshing of the driving gear 22 and the driven gear 21 drives the transmission shaft 18 and the stirring plate 17 in the stirring assembly to rotate at the gap between the central cylinder 9 and the rising cylinder 10. At this time, the flocculant and sewage are simultaneously introduced into the gap between the central cylinder 9 and the rising cylinder 10 through the flocculant injection pipe 2 and the sewage inlet pipe 3. The sewage and flocculant are fully stirred and mixed by the rotating stirring plate 17, so that the sewage can be fully flocculated and precipitated. Then, the stirred sewage and flocculant mixture will fall on the sputtering table 13 to form a rebound phenomenon, and the scraping plates 14 are driven to rotate when the central shaft 15 rotates, so that the sewage and flocculant mixture can be further stirred and mixed in the flocculation tank 4. Then, the auger blades 16 in rotation drive the sewage flocculation precipitate deposited at the bottom of the flocculation tank 4 to rise and be discharged along the slag discharge pipe 7, while the water enters the top frame 1 under the filtering action of the filter screen 20 and is discharged through the water outlet pipe 8. After the flocculation is completed, the user opens the bottom cover 6, and the inner wall of the flocculation tank 4 is cleaned by the rotating scraping plates 14, so that the remaining precipitate is completely discharged along the slag discharge pipe.

[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A flocculation device for sewage treatment, comprising a top frame (1), characterized in that: A water outlet pipe (8) is fixed to the bottom of one side of the top frame (1), and a through hole is provided in the middle of the bottom of the top frame (1), a flocculation box (4) is fixedly installed at the bottom of the through hole, a mounting hole (19) is provided in the middle of the top of the top frame (1), and a center tube (9) is fixedly installed on the inner wall of the mounting hole (19), a sewage inlet pipe (3) extending from the flocculation box (4) is fixed to one side of the center tube (9), a flocculant injection pipe (2) is fixed to one side of the top of the sewage inlet pipe (3), and a center tube (9) is provided in the middle of the top of the center tube (9). A hole is formed in the center of the central hole, and an ascending cylinder (10) is fixed on the inner wall of the central hole, a slag discharge pipe (7) is fixed on the top of one side of the ascending cylinder (10), a first base hole is opened in the middle of the top of the ascending cylinder (10), and the inner wall of the first base hole is rotatably connected to a central shaft (15) through a sealed bearing, an auger blade (16) is fixed on the outer wall of the central shaft (15) and is attached to the inner wall of the ascending cylinder (10), and stirring components distributed at equal distances are arranged inside the central cylinder (9), and a rotating mechanism is arranged at the top of the stirring component and the top of the central shaft (15).

2. A flocculation device for sewage treatment according to claim 1, characterized in that: The stirring assembly comprises second base holes which are equidistantly arranged on the top of the central tube (9), and the inner walls of the second base holes are rotatably connected to a transmission shaft (18) via a sealed bearing, and the outer walls of the transmission shaft (18) are fixed with stirring plates (17) which are equidistantly distributed, and the stirring plates (17) are located in the gap between the inner wall of the central tube (9) and the outer wall of the rising tube (10).

3. A flocculation device for sewage treatment according to claim 2, characterized in that: The rotating mechanism comprises a mounting frame (12) fixedly mounted on the top of the top frame (1), and a plurality of third base holes are opened on the mounting frame (12), the top of the transmission shaft (18) is rotatably connected to the inner wall of the third base hole via a bearing, a motor (11) is fixedly mounted on the top of the mounting frame (12), and the output shaft of the motor (11) is fixedly connected to the top of the central shaft (15), a driving gear (22) is fixedly mounted on the top of the outer wall of the central shaft (15), and a driven gear (21) is fixedly mounted on the top of the outer wall of the transmission shaft (18), and the driven gear (21) is meshed with the driving gear (22).

4. The flocculation device for sewage treatment according to claim 3, characterized in that: A sputtering table (13) is fixedly mounted on the outer wall of the rising tube (10) close to the bottom of the central tube (9), and the diameter of the sputtering table (13) is larger than the diameter of the central tube (9), and the top surface of the sputtering table (13) is designed to be inclined.

5. The flocculation device for sewage treatment according to claim 4, characterized in that: Scraping plates (14) are fixedly mounted at the bottom of the outer wall of the central shaft (15) and are distributed at equal distances, and one side of the scraping plates (14) is in contact with the inner wall of the flocculation box (4).

6. The flocculation device for sewage treatment according to claim 5, characterized in that: A slag discharge pipe is fixed at the bottom of the flocculation box (4), and a threaded groove is provided at the bottom of the outer wall of the slag discharge pipe, on which a bottom cover (6) is screwed.

7. The flocculation device for sewage treatment according to claim 6, characterized in that: A filter screen (20) is fixedly mounted on the inner wall of the through hole, and the filter screen (20) is sleeved on the outer wall of the central tube (9).

8. The flocculation equipment for sewage treatment according to claim 1, characterized in that: A support frame (5) is fixedly mounted on the bottom of the top frame (1).

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