A pollution guiding assembly and a filtration system

Abstract

The utility model provides a kind of pollution guide assembly and filter system, belong to sewage treatment technical field, pollution guide assembly includes the mounting seat of fixed installation between sewage channel and rotating filter screen, and the pollution guide plate is detachably installed on mounting seat, pollution guide plate is obliquely arranged, and the end of pollution guide plate close to rotating filter screen is detachably installed with elastic compensation plate, and compensation plate is used to contact with the screen of rotating filter screen, to cover the gap between rotating filter screen and pollution guide plate.Through the direct contact of elastic compensation plate and the screen of rotating filter screen, the gap between pollution guide plate and screen can be completely covered, preventing the occurrence of backflow phenomenon caused by the large gap, and the elastic properties of compensation plate can adapt to the slight position change of screen during cyclic rotation, avoiding collision damage caused by rigid contact, balancing sealing effect and equipment safety, and the obliquely arranged pollution guide plate can guide the quickly sliding of the falling pollutants into the sewage channel, further reducing the possibility of pollutants retention and backflow.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a sewage guiding component and a filtration system. Background Technology

[0002] Rotary filters are a commonly used solid-liquid separation device for water treatment, mainly used to intercept and remove particulate impurities and suspended solids in water supply systems. Rotary filters are rotatable, and the filter belt made of mesh plates forms a water-passing grid surface. When sewage flows through, dirt larger than the grid gaps is intercepted.

[0003] In practical applications, a drain channel is provided on one side of the rotating filter screen, and the drain channel is close to the top of the rotating filter screen. A flushing nozzle structure is also provided on one side of the rotating filter screen to spray pressurized water onto the rotating filter screen. The rotating filter screen rotates continuously in a cycle, lifting the dirt trapped on the screen to the top, and then the pressurized water flushes the dirt down into the drain channel for discharge.

[0004] In order to ensure that the dirt falls accurately into the drainage channel, existing rotary filters usually have a guide plate fixed on the side of the drainage channel near the rotary filter. The guide plate extends outward into the drainage channel to guide the flow. In order to avoid collision damage between the guide plate and the screen, there is usually a set gap between the guide plate and the screen. When the gap between the guide plate and the screen is too large, some of the dirt washed by the pressurized water will pass through the gap, causing the dirt to not fall into the drainage channel effectively and resulting in backflow of dirt. Utility Model Content

[0005] To address the technical problem in the existing rotating filter screens mentioned above, where a set gap exists between the guide plate and the screen, some of the dirt washed by pressurized water will pass through the gap, resulting in the dirt not being able to fall completely and effectively into the sewage channel, causing dirt backflow, this utility model provides a guide component.

[0006] The technical solution of this utility model is as follows: This utility model provides a dirt guiding component, including a mounting base fixedly installed between a sewage discharge channel and a rotating filter screen. A dirt guiding plate is detachably installed on the mounting base. The dirt guiding plate is inclined, and an elastic compensating plate is detachably installed at the end of the dirt guiding plate near the rotating filter screen. The compensating plate is used to contact the screen of the rotating filter screen to cover the gap between the rotating filter screen and the dirt guiding plate. By having the elastic compensating plate directly contact the screen of the rotating filter screen, the gap between the dirt guiding plate and the screen can be completely covered, preventing dirt from flowing back through the gap due to a large gap. At the same time, the elasticity of the compensating plate can adapt to slight positional changes of the screen during the cyclic rotation process, avoiding collision damage caused by rigid contact, thus balancing sealing effect and equipment safety. The inclined dirt guiding plate can guide the washed-down dirt to slide quickly into the sewage discharge channel, further reducing the possibility of dirt retention and backflow.

[0007] Preferably, the guide plate has a gradually curved structure, which can better conform to the movement trajectory of dirt after rinsing, reduce the frictional resistance and residence time of dirt on the surface of the guide plate, and prevent side leakage and backflow caused by dirt accumulation on the guide plate. At the same time, the curved surface can disperse the impact force generated when pressurized water rinses dirt, reduce the probability of dirt being impacted to the outside of the guide plate (in the direction of the sewage channel), further improve the diversion efficiency of dirt to the sewage channel, and, together with the sealing effect of the compensation plate, provide double protection against backflow of dirt.

[0008] Preferably, the curvature of the guide plate gradually decreases from the end near the rotating filter screen toward the end near the sewage ditch. When the fluid flows along the slope, the force is continuous and the speed changes smoothly. The fluid can always adhere to the slope and will not separate or form strong eddies.

[0009] Preferably, the compensation plate has a straight plate structure, which can maintain stable contact with the mesh plate during the cyclic rotation of the mesh plate, and will not have sealing breaks due to structural protrusions or depressions, ensuring that dirt will not flow back from the gaps.

[0010] Preferably, the compensation plate has a U-shaped structure, which has stronger elastic buffering capacity and can better adapt to the slight deformation or vibration that may occur in the mesh plate during long-term operation. It avoids gaps caused by the compensation plate losing contact with the mesh plate due to the fluctuation of the mesh plate. In addition, the U-shaped structure can enhance the overall structural strength of the compensation plate, extend its service life, and reduce the frequency of frequent replacement.

[0011] Preferably, one end of the compensation plate is a connecting end, and the other end is an abutting end. A slot is provided on the end face of the connecting end, and one end of the guide plate is inserted into the slot and fixed with bolts. The abutting end has a blade-shaped structure. The slot at the connecting end makes the connection between the guide plate and the compensation plate tighter. Combined with the bolt fixing, it can effectively prevent the compensation plate from falling off due to vibration during long-term use. The blade-shaped structure at the abutting end can reduce the contact area with the mesh plate, reduce the frictional resistance between the two, reduce the wear rate of the compensation plate, and at the same time, the blade-shaped structure can better fit the surface of the mesh plate.

[0012] Preferably, an arc is fixed between the two ends of the compensation plate, and a flexible baffle is fixed on the inner wall of each side of the opening at the top of the arc. The width of the flexible baffle is smaller than the diameter of the arc, and the two flexible baffles overlap vertically. The arc structure enhances the elastic deformation capability of the compensation plate, enabling it to better adapt to the movement trajectory of the mesh plate. The overlapping flexible baffles can form a seal on the inside of the arc, blocking dirt from accumulating on the outside of the arc. The overlap of the flexible baffles does not affect the overall elastic deformation of the compensation plate.

[0013] Preferably, the flexible baffle near the rotating filter screen is located above the flexible baffle near the sewage discharge channel, so that the flexible baffle near the rotating filter screen can preferentially block the dirt coming from the direction of the screen plate, and prevent the dirt from directly impacting the flexible baffle near the sewage discharge channel; at the same time, the upper flexible baffle can guide the dirt to the surface of the lower flexible baffle, forming a stepped guide, which not only prevents the dirt from flowing back from the gap, but also prevents the dirt from accumulating in the arc.

[0014] Preferably, the mounting base includes a fixing part, on which an mounting part is fixedly mounted. The shape of the mounting surface on the mounting part matches that of the guide plate. The guide plate is fixedly connected to the mounting part by bolts. A limiting part is fixedly mounted at one end of the mounting part near the sewage channel. The height of the limiting part is the same as the thickness of the guide plate. The matching shape of the mounting surface and the guide plate ensures that the guide plate fits tightly with the mounting part after installation, preventing backflow of sewage between the guide plate and the mounting part due to installation gaps. The bolt fixing method ensures that the guide plate is firmly installed, preventing it from shifting under pressure water impact or mesh vibration. The limiting part accurately positions the guide plate, preventing deviations in the fit between the guide plate and the compensation plate or mesh plate due to installation misalignment. At the same time, the height of the limiting part is the same as the thickness of the guide plate, forming a flat transition surface, preventing sewage from accumulating at the connection between the guide plate and the mounting part, and ensuring that sewage can smoothly slide into the sewage channel.

[0015] A filtration system includes a rotating filter screen and a drain channel. A guide assembly is provided between the rotating filter screen and the drain channel. The guide plate abuts against the screen of the rotating filter screen via a compensation plate. The elastic compensation plate directly contacts the screen of the rotating filter screen, completely covering the gap between the guide plate and the screen, preventing backflow of contaminants through the gap due to its large size.

[0016] As can be seen from the above technical solutions, the advantages of this utility model are: 1. The elastic compensation plate directly contacts the rotating filter screen, completely covering the gap between the guide plate and the screen. This prevents backflow of dirt due to large gaps. The elasticity of the compensation plate can adapt to slight positional changes of the screen during the rotation process, avoiding collision damage caused by rigid contact. This balances sealing effect and equipment safety. The inclined guide plate can guide the washed-down dirt to slide quickly into the drainage ditch, further reducing the possibility of dirt retention and backflow.

[0017] 2. The compensation plate has a U-shaped structure, which has stronger elastic buffering capacity and can better adapt to the slight deformation or vibration that may occur in the mesh plate during long-term operation. It avoids gaps caused by the mesh plate fluctuating and losing contact with the compensation plate. The flexible baffle not only prevents dirt from flowing back from the gap, but also prevents dirt from accumulating in the arc, and does not affect the overall elastic deformation of the compensation plate. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description 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.

[0019] Figure 1 This is a three-dimensional structural diagram of the dirt-guiding component according to one or more embodiments of the present invention; Figure 2 This is a schematic diagram of the structure of the guide plate according to one or more embodiments of the present invention; Figure 3 This is a side view of the mounting base according to one or more embodiments of the present invention. Figure 4 This is a side view of the first compensation plate according to one or more embodiments of the present invention. Figure 5 This is a side view of the second type of compensation plate according to one or more embodiments of the present invention. Figure 6 This is a schematic diagram showing the positional relationship between the rotating filter screen, the sewage channel, and the sewage guiding component according to one or more embodiments of the present invention. The components represented by the various reference numerals in the diagram are: 1. Mounting base; 2. Drain guide plate; 3. Compensating plate; 4. Fixing part; 5. Mounting part; 6. Mounting surface; 7. Limiting part; 8. Bolt hole; 9. Connecting end; 10. Abutting end; 11. Slot; 12. Bolt; 13. Blade-shaped structure; 14. Rotating filter screen; 15. Drainage channel; 16. Arc part; 17. Flexible baffle; 18. Drain guide assembly. Detailed Implementation

[0020] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0021] Example 1 In a typical embodiment of this utility model, such as Figures 1-4 As shown, a dirt guiding assembly is proposed, including: a mounting base 1, a dirt guiding plate 2, and a compensation plate 3. The mounting base 1 is fixedly installed between the sewage channel 15 and the rotating filter screen 14. Specifically, the mounting base 1 is fixedly installed on the side of the sewage channel 15 near the rotating filter screen 14 by bolts. The dirt guiding plate 2 is detachably installed on the mounting base 1. The dirt guiding plate 2 is inclined. The end of the dirt guiding plate 2 near the rotating filter screen 14 is detachably connected to the compensation plate 3. The compensation plate 3 is made of elastic material and is used to contact the rotating filter screen 14, thereby covering the gap between the rotating filter screen 14 and the dirt guiding plate 2, so that dirt can flow onto the dirt guiding plate 2 and prevent the backflow of dirt.

[0022] Due to the straight transition of the inclined plane, the fluid experiences sudden changes in velocity and pressure as it descends, especially at the inlet and outlet. This easily leads to separation, eddies, and impacts, resulting in poor fluid adhesion and a tendency for flow detachment. Therefore, if... Figure 2 As shown, in this embodiment, the guide plate 2 has a gradually curved structure, that is, the guide plate 2 moves from one end near the rotating filter screen 14 toward the other end near the sewage channel 15. The curvature of the guide plate 2 gradually decreases. When the fluid flows along the slope, the force is continuous and the speed changes smoothly. The fluid can always adhere to the slope and will not separate or form strong eddies.

[0023] In this embodiment, the compensation plate 3 is made of EPDM rubber, which has properties of aging resistance and water corrosion resistance, while the guide plate 2 is made of stainless steel. Figure 4As shown, the compensation plate 3 has a straight plate structure. One end of the compensation plate 3 is a connecting end 9 for connecting with the guide plate 2. A slot 11 is provided on the end face of the connecting end 9. The slot 11 extends along the length of the connecting end 9. One end of the guide plate 2 is inserted into the slot 11. Through holes are provided at corresponding positions of the connecting end 9 and the guide plate 2 for bolt installation. Thus, the connecting end 9 and the guide plate 2 are fixedly connected together by bolts 12.

[0024] The use of slot 11 in conjunction with bolts effectively ensures the firmness of the connection between compensation plate 3 and guide plate 2, preventing compensation plate 3 from shifting due to collision with rotating filter screen 14.

[0025] The end of the compensation plate 3 away from the guide plate 2 is the abutment end 10, which is used to abut against the rotating filter screen 14, thereby eliminating the gap between the rotating filter screen 14 and the guide plate 2 without affecting the operation of the rotating filter screen 14, and preventing the backflow of dirt.

[0026] The compensation plate 3 is inclined, and the abutting end 10 of the compensation plate 3 is a blade-shaped structure 13 to ensure dynamic fit with the rotating filter screen 14. In this embodiment, the blade angle of the blade-shaped structure 13 is 30°.

[0027] like Figure 3 As shown, the mounting base 1 includes a fixing part 4, a mounting part 5, and a limiting part 7. The mounting part 5 is fixedly mounted on the fixing part 4. The fixing part 4 is a plate-shaped structure with several bolt holes 8 for fixing the overall position of the mounting base 1. The mounting part 5 is welded to the fixing part 4. The upper surface of the mounting part 5 is the mounting surface 6, and the shape of the mounting surface 6 matches the shape of the guide plate 2, that is, the mounting surface 6 is a gradually curved slope to facilitate the installation and positioning of the guide plate 2. The guide plate 2 is fixedly connected to the mounting part 5 by bolts 12. The limiting part 7 is a vertically arranged plate-shaped structure. The limiting part 7 is fixedly set at one end of the mounting part 5 near the sewage channel 15. The height of the limiting part 7 is the same as the thickness of the guide plate 2, thereby limiting and supporting the lower end of the guide plate 2 to ensure the installation firmness of the guide plate 2, while not affecting the flow and discharge of sewage.

[0028] It is understood that in other embodiments, the guide plate 2 can also be fixedly connected to the mounting part 5 by welding, and no further restrictions are imposed here.

[0029] Example 2 In another typical embodiment of this utility model, a dirt guiding component is proposed, including: a mounting base 1, a dirt guiding plate 2, and a compensation plate 3. The mounting base 1 is fixedly installed on the side of the sewage channel 15 near the rotating filter screen 14 by bolts. The dirt guiding plate 2 is detachably installed on the mounting base 1. The end of the dirt guiding plate 2 near the rotating filter screen 14 is detachably connected to the compensation plate 3. The compensation plate 3 is made of elastic material and is used to contact the rotating filter screen 14, thereby covering the gap between the rotating filter screen 14 and the dirt guiding plate 2, so that dirt can flow onto the dirt guiding plate 2 and prevent the backflow of dirt.

[0030] In this embodiment, the structure of the mounting base 1 and the guide plate 2 is the same as that described in Embodiment 1, and the specific details will not be elaborated further here.

[0031] like Figure 5 As shown, in this embodiment, the cross-sectional shape of the compensation plate 3 is U-shaped. The two ends of the compensation plate 3 are still the connecting end 9 and the abutting end 10, respectively. An arc portion 16 is fixed between the connecting end 9 and the abutting end 10. A slot 11 is provided at the connecting end 9 for connecting with the guide plate 2. At the same time, the connecting end 9 is fixedly connected to the guide plate 2 by bolts 12. The abutting end 10 is a blade-shaped structure 13 for fitting and abutting with the rotating filter screen 14.

[0032] Compared to the straight-plate compensation plate 3, the U-shaped compensation plate 3 has a central arc 16 that is easier to deform, making the compensation plate 3 more deformable, having less impact on the rotating filter screen 14, and exhibiting stronger adaptability and wear resistance, thus effectively extending its service life.

[0033] A flexible baffle 17 is fixed on each of the inner walls on both sides of the top opening of the arc 16. The material of the flexible baffle 17 is the same as that of the compensation plate 3. The two flexible baffles 17 overlap to block the top opening of the arc 16. While not affecting the deformation of the arc 16, they can also effectively prevent dirt from entering the arc 16.

[0034] In this embodiment, the width of the flexible baffle 17 is smaller than the diameter of the arc portion 16, and the flexible baffle 17 near the abutting end 10 is located above the flexible baffle 17 near the connecting end 9.

[0035] Example 3 In another typical embodiment of this utility model, such as Figure 6As shown, a filtration system is proposed, including: a rotating filter screen 14, a sewage discharge channel 15, and a dirt guiding assembly 18. The dirt guiding assembly 18 is fixedly installed on the side of the sewage discharge channel 15 near the rotating filter screen 14, and the dirt guiding assembly 18 is close to the top of the rotating filter screen 14. The dirt guiding assembly 18 includes a dirt guiding plate 2 and a compensation plate 3 fixedly disposed at one end of the dirt guiding plate 2. The dirt guiding plate 2 abuts against the screen of the rotating filter screen 14 through the compensation plate 3 to cover the gap between the rotating filter screen 14 and the dirt guiding plate 2 and prevent the backflow of dirt. The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A contaminant guiding component, comprising: The mounting base (1) is fixedly installed between the sewage ditch (15) and the rotating filter screen (14), characterized in that a guide plate (2) is fixedly installed on the mounting base (1), the guide plate (2) is inclined, and an elastic compensation plate (3) is detachably installed at one end of the guide plate (2) near the rotating filter screen (14). The compensation plate (3) is used to contact the mesh plate of the rotating filter screen (14) to cover the gap between the rotating filter screen (14) and the guide plate (2).

2. The contaminant guiding component according to claim 1, characterized in that, The guide plate (2) has a gradually curved structure.

3. The contaminant guiding component according to claim 2, characterized in that, The curvature of the guide plate (2) gradually decreases from the end near the rotating filter (14) toward the end near the drain channel (15).

4. The contaminant guiding component according to claim 1, characterized in that, The compensation plate (3) is a straight plate structure.

5. The contaminant guiding component according to claim 1, characterized in that, The compensation plate (3) has a U-shaped structure.

6. The contaminant guiding component according to claim 4 or 5, characterized in that, One end of the compensation plate (3) is the connecting end (9), and the other end is the abutting end (10). The end face of the connecting end (9) is provided with a slot (11). One end of the guide plate (2) is inserted into the slot (11) and fixed with bolts (12). The abutting end (10) has a blade-shaped structure (13).

7. The contaminant guiding component according to claim 5, characterized in that, An arc section (16) is fixed between the two ends of the compensation plate (3). A flexible baffle (17) is fixed on the inner wall of the top opening of the arc section (16). The width of the flexible baffle (17) is smaller than the diameter of the arc section (16). The two flexible baffles (17) overlap vertically.

8. The contaminant guiding component according to claim 7, characterized in that, The flexible baffle (17) near the rotating filter (14) is located above the flexible baffle (17) near the sewage ditch (15).

9. The contaminant guiding component according to claim 1, characterized in that, The mounting base (1) includes a fixing part (4), and a mounting part (5) is fixedly provided on the fixing part (4). The shape of the mounting surface (6) on the mounting part (5) matches that of the guide plate (2). A limiting part (7) is fixedly provided at one end of the mounting part (5) near the sewage ditch (15). The height of the limiting part (7) is the same as the thickness of the guide plate (2).

10. A filtration system, characterized in that, include: A rotating filter screen (14) and a sewage discharge channel (15) are provided between the rotating filter screen (14) and the sewage discharge channel (15), and a dirt guiding component (18) as described in claim 1 is provided between them. The dirt guiding plate (2) abuts against the mesh plate of the rotating filter screen (14) through a compensation plate (3).

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