Anti-clogging sewage filtering device

Abstract

The utility model discloses a kind of anti-clogging sewage filtering devices, including shell, filter water mechanism, sewage discharge mechanism and driving mechanism are equipped in shell, filter water mechanism includes the filter plate for filtering sewage, sewage discharge mechanism includes helical blade and scraper, driving mechanism is used to drive helical blade and filter plate rotation, scraper is scraped off dirt on filter plate by the relative rotation with filter plate, helical blade is discharged dirt by self rotation.The utility model can avoid the fixed landing point of sewage on it by setting rotatable filter plate, so the process of filter plate intercepting dirt will not cause excessive wear or corrosion to its local part, and further ensure its filtering performance;Meanwhile, the relative rotation of filter plate and scraper can let the latter clean the dirt accumulated on the former in real time, and discharge dirt by the rotation of helical blade, to prevent filter plate from being blocked, so as to ensure its effect of filtering sewage.

Description

Technical Field

[0001] This utility model relates to the field of sewage filtration technology, and in particular to an anti-clogging sewage filtration device. Background Technology

[0002] Wastewater filtration is a process that uses physical or physicochemical methods to trap suspended solids, colloids, microorganisms, and even some dissolved pollutants in water through porous media. It is a key step in advanced wastewater treatment and is often used for further purification after secondary biological treatment or for the preparation of reclaimed water.

[0003] Filter elements are the core components of filtration equipment, and their maintenance directly affects the wastewater filtration effect, operating costs, and equipment lifespan. For example, as the filtration equipment continues to operate, more and more impurities will accumulate on the filter elements, leading to blockage. At this time, the filtration effect will decrease, and the fluid flow will also be affected. Therefore, it is necessary to clean or replace the filter elements regularly. In addition, uneven contact between the dirt in the wastewater and the filter elements can also cause increased local wear or corrosion of the latter, which in turn leads to a decrease in filtration performance.

[0004] A search revealed that Chinese utility model patent CN211770672U discloses an anti-clogging sewage filtration device, comprising a housing, a cover plate, an inlet pipe, and insert plates. The cover plate is fitted onto the top of the housing, with a clearance fit between the cover plate and the housing. The inlet pipe is connected to the center of the cover plate. Insert plates are fixed to both ends of the lower surface of the cover plate, and connecting mechanisms are fixed to both ends of the housing. This application filters sewage flowing into the inlet pipe using an inclined mesh plate. However, the inclined state of the mesh plate alone cannot guarantee smooth discharge of waste, thus limiting the anti-clogging effect of the device. Furthermore, because the inlet pipe and the mesh plate are relatively fixed, the fixed landing point of the sewage on the mesh plate can cause localized wear or corrosion, thereby affecting the filtration performance. Utility Model Content

[0005] In view of the above-mentioned prior art, the present invention provides an anti-clogging sewage filtration device, which mainly solves the technical problem of how to prevent the filter element from clogging and ensure filtration performance.

[0006] To achieve the above objectives, the technical solution of this utility model embodiment is implemented as follows:

[0007] A clog-resistant sewage filtration device includes a housing, within which a water filtration mechanism, a sewage discharge mechanism, and a drive mechanism are provided. The water filtration mechanism includes a filter plate for filtering sewage, the sewage discharge mechanism includes spiral blades and a scraper, and the drive mechanism is used to drive the spiral blades and the filter plate to rotate. The scraper scrapes off dirt on the filter plate by rotating relative to the filter plate, and the spiral blades discharge dirt by rotating on their own.

[0008] Furthermore, a base is provided below the outer casing, and several pillars are fixedly connected at equal intervals between the outer casing and the base. The drive mechanism includes a motor fixedly connected to the base, and a rotating shaft is fixedly connected to the top of the motor's output shaft.

[0009] Furthermore, a first opening is provided at the bottom center of the outer casing, and a rotating cylinder is rotatably connected to the outer casing at the first opening. The filter plate is fixedly connected to the top of the rotating cylinder, and the filter plate is in the shape of an inverted frustum.

[0010] Furthermore, a driven wheel is connected to the outer side of the cylinder outside the outer shell via a key, and a driving wheel is connected to the top of the rotating shaft via a key. The driving wheel meshes with the driven wheel, and the diameter of the driving wheel is smaller than the diameter of the driven wheel.

[0011] Furthermore, a second opening is provided at the top center of the outer shell, and a material cylinder is fixedly connected to the outer shell at the second opening. A central shaft is rotatably connected to the top inner wall of the material cylinder, and a through hole is provided at the top of the rotating cylinder. The bottom end of the central shaft passes through the rotating cylinder at the through hole.

[0012] Furthermore, pulleys are connected to the bottom of the central shaft and the outside of the rotating shaft by keys. The same belt is fitted around the two pulleys, and the spiral blades are fixedly connected to the outside of the rod body inside the material cylinder.

[0013] Furthermore, a baffle is fixedly connected to the top of the filter plate on the inner wall of the outer shell. Several supports are fixedly connected to the baffle at equal intervals. The number of scrapers is the same as the number of supports and they correspond one-to-one. The scrapers are fixedly connected to one end of the supports.

[0014] Furthermore, several feed inlets are provided at the bottom outer side of the barrel, and a discharge outlet is provided at the top side of the barrel. A guide plate is fixedly connected to the bottom of the discharge outlet of the barrel, and the guide plate is inclined.

[0015] Furthermore, a liquid inlet is provided on one side of the top of the outer shell, and a liquid inlet hopper is fixedly connected to the liquid inlet of the outer shell. A liquid outlet is provided on one bottom side of the outer shell, and a liquid outlet pipe is fixedly connected to the liquid outlet of the outer shell. A liquid outlet valve is provided in the liquid outlet pipe.

[0016] Furthermore, spring pieces are fixedly connected at equal intervals on the outer side of the bottom end of the filter plate, and several protrusions are fixedly connected on the inner wall of the outer shell, with the protrusions located at the bottom end of the spring pieces.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. By setting a rotatable filter plate, this application can avoid the fixed landing point of sewage on it. Therefore, the process of the filter plate intercepting dirt will not cause excessive wear or corrosion to its local area, thus ensuring its filtration performance. At the same time, the relative rotation of the filter plate and the scraper allows the latter to clean the dirt accumulated on the former in real time, and the dirt is discharged by means of the rotation of the spiral blades, thereby preventing the filter plate from clogging and ensuring its sewage filtration effect.

[0019] 2. Since the motor drives the spiral blades to rotate through a pulley of the same diameter, and the filter plate rotates through a small-diameter driving wheel and a large-diameter driven wheel, the filter plate can rotate at a speed lower than that of the spiral blades. In this case, the relatively high-speed rotating spiral blades can effectively transport and discharge dirt, while the relatively low-speed rotating filter plate can avoid generating excessive centrifugal force that would cause dirt to fall poorly. Therefore, the filtration effect of this device can be further guaranteed.

[0020] 3. By setting springs on the filter plate, the protrusions can be used to move the springs during the rotation of the filter plate, causing them to vibrate under their own elastic force, which in turn causes the filter plate to vibrate. This can improve the filter plate's filtration effect on sewage and further prevent the filter plate from clogging. Attached Figure Description

[0021] Figure 1 This is a perspective view of an anti-clogging sewage filtration device according to Embodiment 1 of this application;

[0022] Figure 2 This is a cross-sectional view of an anti-clogging sewage filtration device according to Embodiment 1 of this application;

[0023] Figure 3 This is a cross-sectional view of an anti-clogging sewage filtration device according to Embodiment 2 of this application.

[0024] Explanation of icon numbers:

[0025] 1. Outer shell; 2. Support column; 3. Base; 4. Drive wheel; 5. Motor; 6. Belt; 7. Pulley; 8. Rotary drum; 9. Driven wheel; 10. Central shaft; 11. Spiral blade; 12. Material cylinder; 13. Guide plate; 14. Bracket; 15. Baffle; 16. Filter plate; 17. Scraper; 18. Protrusion; 19. Spring piece. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the utility model.

[0027] Example 1

[0028] See attached document Figure 1-2 This application provides an anti-clogging sewage filtration device, including a housing 1, a base 3 below the housing 1, and a plurality of support columns 2 fixedly connected at equal intervals between the housing 1 and the base 3. The drive mechanism includes a motor 5 fixedly connected to the base 3, a rotating shaft fixedly connected to the top of the output shaft of the motor 5, and a power management module on the base 3 for connecting the motor 5 to the power supply.

[0029] Preferably, a first opening is provided at the bottom center of the outer shell 1, and a rotating cylinder 8 is rotatably connected to the outer shell 1 at the first opening. The filter plate 16 is fixedly connected to the top of the rotating cylinder 8, and the filter plate 16 is in the shape of an inverted frustum.

[0030] Preferably, the driven wheel 9 is connected to the outer side of the cylinder 8 outside the outer shell 1 via a key, and the top of the rotating shaft is connected to the driving wheel 4 via a key. The driving wheel 4 meshes with the driven wheel 9. The diameter of the driving wheel 4 is smaller than the diameter of the driven wheel 9. Therefore, the process of the driving wheel 4 driving the driven wheel 9 to rotate can achieve the effect of deceleration, thereby realizing the slow rotation of the filter plate 16, and thus avoiding the generation of excessive centrifugal force that would cause the dirt to fall poorly.

[0031] Preferably, the bottom end of the central shaft 10 and the outside of the rotating shaft are both connected to pulleys 7 by keys, and the two pulleys 7 are fitted with the same belt 6. The spiral blades 11 are fixedly connected to the outside of the rod body of the central shaft 10 inside the material cylinder 12.

[0032] When using this device for wastewater filtration, the motor 5 can be started. The motor 5 drives the rotating shaft, which in turn drives the central shaft 10 to rotate via the belt 6 and two pulleys 7. The central shaft 10 then drives the spiral blades 11 to rotate. On the other hand, the rotating shaft also drives the drive wheel 4 to rotate. The drive wheel 4 drives the rotating drum 8 to rotate via the driven wheel 9. The rotating drum 8 then drives the filter plate 16 to rotate.

[0033] Preferably, the housing 1 is provided with a water filtration mechanism, a sewage discharge mechanism and a drive mechanism. The water filtration mechanism includes a filter plate 16 for filtering sewage. The sewage discharge mechanism includes a spiral blade 11 and a scraper 17. The drive mechanism is used to drive the spiral blade 11 and the filter plate 16 to rotate. The scraper 17 scrapes off the dirt on the filter plate 16 by rotating relative to the filter plate 16. The spiral blade 11 discharges the dirt by rotating itself.

[0034] Wastewater is discharged into the outer casing 1 from the inlet hopper. The wastewater can be filtered by the rotating filter plate 16. The rotation of the filter plate 16 can prevent the wastewater from landing on its surface in a fixed position, thus preventing the dirt in the wastewater from causing excessive wear or corrosion to the filter plate 16.

[0035] Preferably, a second opening is provided at the top center of the outer shell 1, and a material cylinder 12 is fixedly connected to the outer shell 1 at the second opening. A central shaft 10 is rotatably connected to the inner wall of the top of the material cylinder 12. A through hole is provided at the top of the rotating cylinder 8, and the bottom end of the central shaft 10 passes through the rotating cylinder 8 at the through hole. The central shaft 10 achieves a rotatable sealing connection with the rotating cylinder 8 at the through hole by rotating a sealing ring.

[0036] Preferably, a baffle 15 is fixedly connected to the top of the filter plate 16 on the inner wall of the outer shell 1. Several supports 14 are fixedly connected at equal intervals on the baffle 15. The number of scrapers 17 is the same as that of the supports 14 and they correspond one-to-one. The scrapers 17 are fixedly connected to one end of the supports 14. The baffle 15 is frustum-shaped. The baffle 15 can block the gap between the filter plate 16 and the inner wall of the outer shell 1, preventing unfiltered sewage from falling directly through the gap and affecting the sewage filtration effect of the device.

[0037] Preferably, a plurality of feed inlets are provided at the bottom outer side of the material cylinder 12, and a discharge outlet is provided at the top side of the material cylinder 12. A guide plate 13 is fixedly connected to the bottom of the discharge outlet of the material cylinder 12. The guide plate 13 is inclined and the surface of the guide plate 13 is smooth so that the waste can be discharged from the discharge outlet on the material cylinder 12 and fall smoothly along the guide plate 13. A collection trough for holding waste is provided at the guide plate 13 so as to facilitate the centralized collection and subsequent treatment of waste, and also to avoid secondary pollution caused by uncollected waste.

[0038] During the rotation of the filter plate 16, the fixed scraper 17 can scrape off the dirt generated by filtering sewage on the filter plate 16 in real time to prevent the dirt from accumulating on the surface of the filter plate 16. The scraped dirt will fall to the bottom of the inner side of the filter plate 16 due to its own gravity and eventually enter the material cylinder 12. At this time, the rotation of the spiral blade 11 can transport the dirt from bottom to top until it falls onto the guide plate 13, thus realizing the real-time scraping and discharge of dirt to avoid the dirt clogging the filter plate 16 and causing poor sewage filtration.

[0039] Preferably, a liquid inlet is provided on one side of the top of the outer shell 1, and a liquid inlet funnel is fixedly connected to the liquid inlet of the outer shell 1. A liquid outlet is provided on one bottom side of the outer shell 1, and a liquid outlet pipe is fixedly connected to the liquid outlet of the outer shell 1. A liquid outlet valve is provided in the liquid outlet pipe.

[0040] Example 2

[0041] See attached document Figure 3 This application provides an anti-clogging sewage filtration device. Compared with embodiment 1, in order to improve the sewage filtration effect, spring pieces 19 are fixedly connected at equal intervals on the outer side of the bottom end of the filter plate 16, and several protrusions 18 are fixedly connected on the inner wall of the outer shell 1, with the protrusions 18 located at the bottom end of the spring pieces 19.

[0042] The rotation of the filter plate 16 can drive the spring 19 to rotate, and the protrusion 18 can cause the spring 19 to undergo elastic deformation during its movement. At this time, the spring 19 will vibrate under its own elastic force, which will cause the filter plate 16 to vibrate. This vibration can further improve the filter plate 16's effect on wastewater filtration and prevent it from being blocked.

[0043] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. The protection scope of this utility model shall be determined by the protection scope of the claims.

Claims

1. A clog-resistant sewage filtration device, comprising a housing (1), characterized in that, The outer casing (1) is provided with a water filtration mechanism, a sewage discharge mechanism and a drive mechanism. The water filtration mechanism includes a filter plate (16) for filtering sewage. The sewage discharge mechanism includes a spiral blade (11) and a scraper (17). The drive mechanism is used to drive the spiral blade (11) and the filter plate (16) to rotate. The scraper (17) scrapes off the dirt on the filter plate (16) by rotating relative to the filter plate (16). The spiral blade (11) discharges the dirt by rotating itself.

2. The anti-clogging sewage filtration device according to claim 1, characterized in that, The outer shell (1) is provided with a base (3) below it. Several pillars (2) are fixedly connected at equal intervals between the outer shell (1) and the base (3). The driving mechanism includes a motor (5) fixedly connected to the base (3). A rotating shaft is fixedly connected to the top of the output shaft of the motor (5).

3. The anti-clogging sewage filtration device according to claim 2, characterized in that, The outer shell (1) has a first opening at the middle of its bottom end. The outer shell (1) is rotatably connected to a rotating cylinder (8) at the first opening. The filter plate (16) is fixedly connected to the top of the rotating cylinder (8). The filter plate (16) is in the shape of an inverted frustum.

4. The anti-clogging sewage filtration device according to claim 3, characterized in that, The rotating drum (8) is located outside the outer shell (1) and is connected to a driven wheel (9) by a key. The top of the rotating shaft is connected to a driving wheel (4) by a key. The driving wheel (4) meshes with the driven wheel (9). The diameter of the driving wheel (4) is smaller than the diameter of the driven wheel (9).

5. The anti-clogging sewage filtration device according to claim 4, characterized in that, The outer shell (1) has a second opening at the top center, and a material cylinder (12) is fixedly connected to the outer shell (1) at the second opening. A central shaft (10) is rotatably connected to the inner wall of the top of the material cylinder (12). A through hole is opened at the top of the rotating cylinder (8), and the bottom end of the central shaft (10) passes through the rotating cylinder (8) at the through hole.

6. The anti-clogging sewage filtration device according to claim 5, characterized in that, The bottom end of the central shaft (10) and the outside of the rotating shaft are both connected to pulleys (7) by keys. The two pulleys (7) are fitted with the same belt (6). The spiral blade (11) is fixedly connected to the outside of the rod body of the central shaft (10) inside the material cylinder (12).

7. The anti-clogging sewage filtration device according to claim 6, characterized in that, The inner wall of the outer shell (1) is fixedly connected to a baffle (15) at the top of the filter plate (16). Several supports (14) are fixedly connected at equal intervals on the baffle (15). The number of scrapers (17) is the same as that of the supports (14) and they correspond one-to-one. The scrapers (17) are fixedly connected to one end of the supports (14).

8. The anti-clogging sewage filtration device according to claim 7, characterized in that, The material cylinder (12) has several feed inlets at the bottom outer side and a discharge outlet at the top side of one side. A guide plate (13) is fixedly connected to the bottom of the discharge outlet of the material cylinder (12), and the guide plate (13) is inclined.

9. The anti-clogging sewage filtration device according to claim 8, characterized in that, The outer shell (1) has a liquid inlet on one side of the top end, and a liquid inlet hopper is fixedly connected to the liquid inlet of the outer shell (1). The outer shell (1) has a liquid outlet on one side of the bottom end, and a liquid outlet pipe is fixedly connected to the liquid outlet of the outer shell (1). A liquid outlet valve is provided in the liquid outlet pipe.

10. The anti-clogging sewage filtration device according to claim 1, characterized in that, The filter plate (16) has spring pieces (19) fixedly connected at equal intervals on the outer side of its bottom end, and a number of protrusions (18) are fixedly connected on the inner wall of the outer shell (1), with the protrusions (18) located at the bottom end of the spring pieces (19).

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