Efficient flocculation device for wastewater treatment

Abstract

This invention relates to a high-efficiency flocculation device for wastewater treatment, characterized in that: multiple guide ports are evenly distributed around the upper outer edge of the inner cylinder; a filter screen plate is coaxially fixedly connected to the bottom of the inner cylinder; a stirring device is coaxially arranged in the inner cylinder; multiple vertically evenly distributed rising spirals are coaxially fixedly connected to the stirring device; a mounting plate is fixedly connected to the bottom of the stirring device extending beyond the filter screen plate; two sets of symmetrically arranged automatic compensation devices are fixedly connected to the mounting plate; a scraper that abuts against the lower end of the filter screen plate is fixedly connected to the upper end of each set of automatic compensation devices; transparent tempered glass is embedded in the side wall of the flocculation cylinder; a lifting device corresponding to the tempered glass is arranged inside the flocculation cylinder; a drain head is fixedly connected to the lifting device; the outlet end of the drain head is fixedly connected to the inlet end of a drainage component; the outlet end of the drainage component extends out of the flocculation cylinder; and a sewage pipe is fixedly connected to the bottom of the flocculation cylinder.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, and in particular to a high-efficiency flocculation device for wastewater treatment. Background Technology

[0002] Flocculation is a common operation in wastewater treatment. Flocculation refers to the addition of flocculants to wastewater, which causes suspended particles in the wastewater to aggregate and form flocs, thereby accelerating particle sedimentation and achieving solid-liquid separation. This phenomenon or operation is called flocculation. Flocculation is achieved by adding appropriate flocculants, whose role is to adsorb particles and "bridge" between them, thus promoting particle sedimentation and achieving solid-liquid separation. Currently, flocculation equipment for wastewater treatment often relies solely on stirring rods to agitate the wastewater, thereby promoting the mixing and action of the flocculant. However, the mixing effect of the stirring rods is limited, which affects the efficiency of flocculation. To address this, this application proposes a high-efficiency flocculation device for wastewater treatment. Summary of the Invention

[0003] To address the above situation and overcome the shortcomings of existing technologies, this invention provides a high-efficiency flocculation device for wastewater treatment. The technical solution it solves includes a flocculation cylinder, within which an internal cylinder is integrally and coaxially arranged. An inlet pipe is fixedly connected to the upper end of the internal cylinder, and a flocculant conduit is also fixedly connected to the upper end of the internal cylinder. The internal cylinder is characterized by having multiple evenly distributed guide ports around its upper outer edge. A filter screen plate is coaxially and fixedly connected to the bottom of the internal cylinder. A stirring device is coaxially arranged within the internal cylinder. Multiple vertically evenly distributed ascending spirals are coaxially and fixedly connected to the stirring device. The bottom of the stirring device extends beyond the filter screen plate and is fixedly connected to an mounting plate. Two sets of symmetrically arranged automatic compensation devices are fixedly connected to the mounting plate. Each set of automatic compensation devices has a scraper fixedly connected to its upper end, which abuts against the lower end of the filter screen plate.

[0004] The side wall of the flocculation cylinder is fitted with transparent tempered glass. A lifting device corresponding to the tempered glass is arranged inside the flocculation cylinder. The lifting device is fixedly connected to a drain head. The outlet end of the drain head is fixedly connected to the inlet end of a drainage component. The outlet end of the drainage component extends out of the flocculation cylinder. A sewage pipe is fixedly connected to the bottom of the flocculation cylinder. A sewage valve is installed on the sewage pipe.

[0005] Preferably, the stirring device includes a stirring shaft rotatably connected to the inner cylinder, the rising spiral is fixedly connected to the coaxial stirring shaft, the stirring shaft is integrally connected to multiple sets of stirring rods evenly distributed vertically, the bottom of the stirring rods is fixedly connected to the mounting plate, the filter screen plate is integrally arranged with a bushing rotatably connected to the lower part of the stirring rods, and the upper end of the inner cylinder is fixedly connected to a stirring motor for driving the stirring shaft.

[0006] Preferably, each of the automatic compensation devices includes a vertical cylinder fixedly connected to the mounting plate. A compensation rod is coaxially and movably fitted onto the vertical cylinder. A spring is fixedly connected to the opposite end of the compensation rod and the mounting plate. The upper end of the compensation rod is fixedly connected to a scraper. The vertical cylinder has two vertical grooves symmetrically arranged about its axis. Two sliders corresponding to the vertical grooves and vertically slidingly connected are fixedly connected to the compensation rod.

[0007] Preferably, the lifting device includes a vertical rod fixedly connected to the upper inner wall of the flocculation cylinder, a support plate fixedly connected to the bottom of the vertical rod, a screw rod arranged parallel to the vertical rod fixedly connected to the support plate and the inner wall of the flocculation cylinder, a lifting rod threadedly connected to the screw rod and slidably connected to the vertical rod, a clamp fixedly connected to the lifting rod and fixedly connected to the drain head, and a lifting motor for driving the screw rod fixedly connected to the upper end of the flocculation cylinder.

[0008] Preferably, the drainage assembly includes a pipe joint integrally arranged with the flocculation cylinder, the lower end of the pipe joint being fixedly connected to the outlet end of an inner hose, the inlet end of the inner hose being fixedly connected to the outlet end of the drainage head, and the upper end of the pipe joint being fixedly connected to the inlet end of an outer hose.

[0009] The beneficial effects of this invention are:

[0010] 1. In use, the flocculant is fed into the inner cylinder through the flocculant conduit. The stirring device is equipped with multiple vertically evenly distributed rising spirals. While the stirring device is working, the rising spirals generate lift that drives the wastewater upward. Under the action of this lift, the wastewater in the flocculation cylinder will enter the inner cylinder from the bottom of the flocculation cylinder and then flow out from the guide port above the inner cylinder. The wastewater flowing out from the flocculation port will again enter the inner cylinder from the bottom of the flocculation cylinder. Thus, the wastewater will flow rapidly along a specific trajectory. During this flow, the flocculant will come into full contact with the flocculant, thereby efficiently interacting with the flocculant in the inner cylinder and rapidly flocculating into agglomerates (hereinafter referred to as particle agglomerates), greatly improving the flocculation efficiency.

[0011] 2. The flocculated particle clusters formed in the built-in cylinder will move along the flow path of the wastewater, and then be discharged from the guide port of the built-in cylinder into the flocculation cylinder and move towards the bottom of the flocculation cylinder. To facilitate the discharge of particle clusters and to prevent particle clusters from re-entering the built-in cylinder from the bottom, a filter screen is arranged at the bottom of the built-in cylinder to prevent particle clusters from falling back into the flocculation cylinder, thus facilitating the agglomeration of particle clusters at the bottom of the flocculation cylinder and allowing them to be discharged through the drain pipe. Furthermore, to prevent particle clusters from adsorbing and clogging the filter screen, a scraper is provided. The scraper rotates synchronously with the stirring shaft of the stirring device and continuously cleans the bottom of the filter screen, ensuring that the filter screen is unobstructed.

[0012] 3. The automatic compensation device ensures that the scraper is always in contact with the bottom of the filter screen through the elastic extension and contraction characteristics of the spring, thereby ensuring the scraper's effectiveness. This allows the scraper to continuously clean the bottom of the filter screen as the stirring shaft rotates, ensuring the filter screen remains unobstructed. Attached Figure Description

[0013] Figure 1 This is a full sectional front view of the present invention.

[0014] Figure 2 This is a first-view perspective sectional view of the present invention.

[0015] Figure 3 This is an enlarged view of region A in the first-view stereoscopic sectional view of the present invention.

[0016] Figure 4 This is an enlarged view of region B in the first-view stereoscopic sectional view of the present invention.

[0017] Figure 5 This is an enlarged view of region C in the first-view stereoscopic sectional view of the present invention.

[0018] Figure 6 This is a partial stereoscopic view from a second perspective of the present invention.

[0019] Figure 7 This is a partial stereoscopic view from a third perspective of the present invention.

[0020] Figure 8 This is a fourth-angle stereoscopic view of the present invention.

[0021] Figure Labels

[0022] 1. Flocculation cylinder, 2. Internal cylinder, 3. Water inlet pipe, 4. Flocculant conduit, 5. Flow guide, 6. Filter screen, 7. Agitator, 8. Rising spiral, 9. Mounting plate, 10. Automatic compensation device, 11. Scraper, 12. Tempered glass, 13. Lifting device, 14. Drain head, 15. Sewage pipe, 16. Sewage valve, 17. Agitator shaft, 18. Agitator rod, 19. Shaft sleeve, 20. Agitator motor, 21. Vertical cylinder, 22. Compensating rod, 23. Spring, 24. Vertical groove, 25. Slider, 26. Vertical rod, 27. Support plate, 28. Lead screw, 29. Lifting rod, 30. Compression sleeve, 31. Lifting motor, 32. Pipe joint, 33. Inner hose, 34. Outer hose, 35. Track. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-8 The specific embodiments of the present invention will be described in further detail below.

[0024] In the first embodiment, the technical solution is as follows: During use, the flocculant is fed into the inner cylinder 2 through the flocculant conduit 4. A stirring device 7 is integrally equipped with multiple vertically evenly distributed ascending spirals 8. While the stirring device 7 is operating, the ascending spirals 8 generate lift, causing the wastewater to flow upwards. Under this lift, the wastewater in the flocculation cylinder 1 enters the inner cylinder 2 from the bottom of the flocculation cylinder 1, and then flows out from the guide port 5 above the inner cylinder 2. The wastewater flowing out of the flocculation port will again enter the inner cylinder 2 from the bottom of the flocculation cylinder 1, thus the wastewater will follow a specific trajectory 35 (as shown in the attached drawings). Figure 1 As shown, the flocculant flows rapidly, and during this flow, the flocculant will come into full contact with the flocculant in the built-in cylinder 2, thereby efficiently interacting with the flocculant in the built-in cylinder 2 and rapidly flocculating into agglomerates (hereinafter referred to as particle agglomerates), which greatly improves the flocculation efficiency.

[0025] Due to the lift force, the flocculated particle clusters in the inner cylinder 2 will move along the flow trajectory 35 of the wastewater and will not settle in the inner cylinder 2. The particle clusters will be discharged from the guide port 5 of the inner cylinder 2 into the flocculation cylinder 1 and move towards the bottom of the flocculation cylinder 1 along the water flow trajectory 35. To facilitate the discharge of particle clusters and to prevent particle clusters from re-entering the inner cylinder 2 from the bottom, a filter screen plate 6 is arranged at the bottom of the inner cylinder 2 to block the particle clusters, while water can freely pass through the filter screen plate 6, thus facilitating the settling of particle clusters at the bottom of the flocculation cylinder 1 and facilitating the discharge of particle clusters through the drain pipe 15. Furthermore, to prevent particle clusters from adsorbing and clogging the filter screen plate 6, a scraper 11 is provided. The scraper 11 can rotate synchronously with the stirring shaft 17 of the stirring device 7 and continuously clean the bottom of the filter screen plate 6 to ensure the unobstructed flow of the filter screen plate 6. The automatic compensation device 10 ensures that the scraper 11 is always in contact with the bottom of the filter screen plate 6 by the elastic extension and contraction characteristics of the spring 23, thereby ensuring the effectiveness of the scraper 11. The scraper 11 can continuously clean the bottom of the filter screen plate 6 as the stirring shaft 17 rotates, ensuring the smooth flow of the filter screen plate 6.

[0026] In Example 2, based on Example 1, specifically, during use, the wastewater requiring flocculation treatment is transported from the inlet pipe 3 to the flocculation cylinder 1, and the flocculant is introduced from the flocculant conduit 4 into the inner cylinder 2 to facilitate interaction with the wastewater for flocculation. Furthermore, during the flocculation process, the stirring device 7 should be in the activated state, i.e., the stirring motor 20 should be in the activated state. The stirring motor 20 will then drive the stirring shaft 17 to rotate, and simultaneously, the stirring rod 18 will rotate, thus mixing the wastewater and flocculant. A bushing 19 is provided on the filter screen plate 6 for the stirring shaft 17 to pass through and move normally.

[0027] Furthermore, in order to improve mixing efficiency and achieve efficient flocculation, an ascending spiral 8 is also arranged on the agitator. When the agitator shaft 17 is connected to the agitator rod 18 and rotates, the ascending spiral 8 rotates synchronously. During the rotation of the ascending spiral 8, the aforementioned lift force will be generated, so that the wastewater will flow along the aforementioned trajectory 35 while being agitated by the agitator rod 18 in the inner cylinder 2, thereby allowing the wastewater to fully contact the flocculant and improving the flocculation efficiency.

[0028] In Example 3, based on Example 2, after flocculation and sedimentation, the upper clear liquid can be discharged through the drain head 14 and the drain assembly. For easier discharge, the drain assembly should be connected to an external water pump assembly, which will not be specifically described in this application. The ion clusters at the bottom can be discharged from the drain pipe 15 after opening the drain valve 16. To facilitate the full discharge of the upper clear liquid, a lifting device 13 is provided to drive the drain head 14 to move vertically, thereby adjusting the height of the drain head 14 to fully discharge the upper clear liquid. The tempered glass 12 on the flocculation cylinder 1 is made of transparent material, allowing clear observation of the internal situation, facilitating the adjustment of the height of the drain head 14. After adjusting the drain head 14, the upper clear liquid can be discharged through the drain head 14, the inner hose 33, the pipe connector 32, and the outer hose 34.

[0029] When the lifting device 13 is in use, if the lifting motor 31 is started to rotate forward, the screw 28 installed between the pallet 27 and the flocculation cylinder 1 will also rotate forward. The forward rotation of the screw 28 will drive the lifting rod 29 to move downward along the vertical rod 26, and the clamp 30 and the drain head 14 will move downward accordingly. Correspondingly, if the lifting motor 31 is started to rotate in reverse, it will drive the lifting rod 29 to move upward, and the drain head 14 will move upward accordingly.

[0030] In Example 4, based on Example 3, to ensure the effectiveness of the scraper 11 and to ensure it always contacts the bottom of the filter screen 6, an automatic compensation device 10 is provided on the mounting plate 9, as shown in the attached drawings. Figure 3 As shown, spring 23 is in a compressed state. Under the reaction force of spring 23, scraper 11 can press against the bottom of filter screen 6. When scraper 11 wears out after long-term use, spring 23 will extend by a corresponding length, thereby driving compensating rod 22 to move upward along vertical cylinder 21 by a corresponding height. Consequently, scraper 11 moves upward by a corresponding height to compensate for wear, ensuring that scraper 11 is always in contact with the bottom of filter screen 6. Vertical groove 24 on vertical cylinder 21 is vertically slidably connected to slider 25 on compensating rod 22, restricting vertical movement of compensating rod 22.

Claims

1. A high-efficiency flocculation device for wastewater treatment, comprising a flocculation cylinder (1), wherein an inner cylinder (2) is integrally and coaxially arranged inside the flocculation cylinder (1), an inlet pipe (3) is fixedly connected to the upper end of the inner cylinder (2), and a flocculant conduit (4) is fixedly connected to the upper end of the inner cylinder (2), characterized in that, The upper outer edge of the inner cylinder (2) is surrounded by multiple guide ports (5). The bottom of the inner cylinder (2) is coaxially fixedly connected to a filter screen plate (6). The inner cylinder (2) is coaxially arranged with a stirring device (7). The stirring device (7) is coaxially fixedly connected with multiple vertically evenly distributed rising spirals (8). The rising spirals (8) are used to generate lift force to drive the wastewater upward when rotating, so that the wastewater in the flocculation cylinder (1) passes through the filter screen plate (6) from the bottom of the flocculation cylinder (1) and enters the inner cylinder (2). After flowing out from the guide port (5), it enters the inner cylinder (2) again from the bottom of the flocculation cylinder (1), forming a circulating flow. The bottom of the stirring device (7) extends out of the filter screen plate (6) and is fixedly connected to an installation plate (9). The installation plate (9) is fixedly connected to two sets of symmetrically arranged automatic compensation devices (10). The upper end of each set of automatic compensation devices (10) is fixedly connected to a scraper (11) that abuts against the lower end of the filter screen plate (6). The side wall of the flocculation cylinder (1) is fitted with transparent tempered glass (12). A lifting device (13) corresponding to the tempered glass (12) is arranged inside the flocculation cylinder (1). A drain head (14) is fixedly connected to the lifting device (13). The outlet end of the drain head (14) is fixedly connected to the inlet end of the drain assembly. The outlet end of the drain assembly extends out of the flocculation cylinder (1). A sewage pipe (15) is fixedly connected to the bottom of the flocculation cylinder (1). A sewage valve (16) is installed on the sewage pipe (15).

2. The high-efficiency flocculation device for wastewater treatment according to claim 1, characterized in that, The stirring device (7) includes a stirring shaft (17) that is rotatably connected to the inner cylinder (2) on the same axis. The rising spiral (8) is fixedly connected to the coaxial stirring shaft (17). The stirring shaft (17) is integrally connected to multiple sets of stirring rods (18) that are evenly distributed vertically. The bottom of the stirring rods (18) is fixedly connected to the mounting plate (9). The filter screen plate (6) is integrally arranged with a bushing (19) that is rotatably connected to the lower part of the stirring rods (18). The upper end of the inner cylinder (2) is fixedly connected to a stirring motor (20) for driving the stirring shaft (17).

3. The high-efficiency flocculation device for wastewater treatment according to claim 1, characterized in that, Each group of automatic compensation devices (10) includes a vertical cylinder (21) fixedly connected to the mounting plate (9). The vertical cylinder (21) is coaxially fitted with a compensation rod (22). The compensation rod (22) and the opposite end of the mounting plate (9) are fixedly connected with a spring (23). The upper end of the compensation rod (22) is fixedly connected to the scraper (11). The vertical cylinder (21) has two vertical grooves (24) symmetrically arranged about its axis. The compensation rod (22) is fixedly connected with two sliders (25) that correspond one-to-one with the vertical grooves (24) and are vertically slidably connected.

4. The high-efficiency flocculation device for wastewater treatment according to claim 1, characterized in that, The lifting device (13) includes a vertical rod (26) fixedly connected to the upper inner wall of the flocculation cylinder (1), a support plate (27) fixedly connected to the bottom of the vertical rod (26), a screw rod (28) arranged parallel to the vertical rod (26) fixedly connected to the support plate (27) and the inner wall of the flocculation cylinder (1), the screw rod (28) being threadedly connected to a lifting rod (29) slidably connected to the vertical rod (26), the lifting rod (29) being fixedly connected to a clamp (30) fixedly connected to the drain head (14), and a lifting motor (31) for driving the screw rod (28) fixedly connected to the upper end of the flocculation cylinder (1).

5. The high-efficiency flocculation device for wastewater treatment according to claim 1, characterized in that, The drainage assembly includes a pipe joint (32) integrally arranged with the flocculation cylinder (1). The lower end of the pipe joint (32) is fixedly connected to the outlet end of the inner hose (33). The inlet end of the inner hose (33) is fixedly connected to the outlet end of the drainage head (14). The upper end of the pipe joint (32) is fixedly connected to the inlet end of the outer hose (34).

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