Sewage treatment tank

Abstract

The utility model discloses a sewage treatment tank which comprises a tank body, a flow equalizing plate, a plurality of filtering mechanisms, a cleaning mechanism and a driving assembly, a water inlet pipe is arranged on the top wall of the tank body and located in the middle position, and a water drainage pipe is arranged at the bottom of the tank body; the flow equalizing plate is close to the lower part of the water inlet pipe and is erected in the tank body; the multiple filtering mechanisms are longitudinally distributed in the tank body at equal intervals and located below the flow equalizing plate, and the hole diameters of filtering net holes in the multiple filtering mechanisms are gradually reduced from top to bottom; and one end of the cleaning mechanism is rotationally connected with the flow equalizing plate. Therefore, impurities filtered on the filter plate can be effectively cleaned, pure dependence on the gravity of the impurities can be avoided, the separation process of the impurities and sewage can be accelerated, the sewage can pass through all stages of filtering links more quickly, the sewage amount treated in unit time is increased, and therefore the working efficiency of the whole sewage treatment device is improved, and the service life of the sewage treatment device is prolonged. Larger-scale sewage treatment requirements are met or the treatment period is shortened, and the operation benefits of sewage treatment facilities are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment, and in particular to a wastewater treatment tank. Background Technology

[0002] Properly treating wastewater can ensure it meets the water quality standards for discharge into specific water bodies or for reuse, effectively mitigating environmental pollution risks and achieving efficient water conservation. However, existing wastewater treatment facilities generally suffer from low treatment efficiency.

[0003] Looking at current wastewater treatment tanks (such as those shown in patent publication number CN214389201 U), they disperse wastewater using a separating plate and then perform a step-by-step filtration operation using multiple filter plates, which alleviates the problem of low treatment efficiency to some extent, but still has many shortcomings.

[0004] Specifically, during the operation of this device, wastewater flows into the tank through the wastewater inlet, is dispersed by the separator, and then flows to the upper surface of the top filter plate. Next, the wastewater gradually completes the filtration process through the combined action of multiple filter plates, and is finally discharged through the clean water outlet. During this process, impurities filtered through the upper part of the filter plate slide down the inclined surface and fall into the guide cylinder under gravity, from where they are discharged. However, relying solely on the gravity of the impurities for removal is not only inefficient but also prone to causing stubborn impurities to adhere tightly to the filter plate surface, which undoubtedly has a serious negative impact on the filtration efficiency. Over time, with the continuous accumulation of use, the impurities on the filter plates will increase, potentially leading to the paralysis of the entire wastewater treatment system, significantly increasing equipment maintenance costs and downtime, and posing a significant threat to the continuity and stability of wastewater treatment. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in the related art.

[0006] Therefore, the purpose of this utility model is to propose a sewage treatment tank that can effectively clean the impurities filtered on the filter plate, no longer relying solely on the gravity of the impurities, and can accelerate the separation process of impurities and sewage, allowing sewage to pass through each stage of filtration more quickly, increasing the amount of sewage treated per unit time, thereby improving the working efficiency of the entire sewage treatment device, meeting the needs of larger-scale sewage treatment or shortening the treatment cycle, and improving the operational efficiency of sewage treatment facilities.

[0007] To achieve the above objectives, this utility model proposes a wastewater treatment tank, comprising a tank body, a flow equalization plate, multiple filtration mechanisms, a cleaning mechanism, and a drive assembly. The tank body has an inlet pipe located on its top wall at the center, and a drain pipe located at its bottom. The flow equalization plate is mounted inside the tank body, near the bottom of the inlet pipe. Multiple filtration mechanisms are longitudinally and equidistantly distributed within the tank body, located below the flow equalization plate. The mesh size of the filter meshes in the multiple filtration mechanisms decreases progressively from top to bottom. One end of the cleaning mechanism is rotatably connected to the flow equalization plate, and the other end of the cleaning mechanism sequentially penetrates through the multiple filtration mechanisms and extends to the outside of the tank body, with each cleaning mechanism contacting one of the multiple filtration mechanisms. The drive assembly is located on the outside of the tank body and is connected to the other end of the cleaning mechanism.

[0008] The wastewater treatment tank of this invention can effectively clean the impurities filtered on the filter plates, no longer relying solely on the gravity of the impurities. It can accelerate the separation process between impurities and wastewater, allowing wastewater to pass through each stage of filtration more quickly. This increases the amount of wastewater treated per unit time, thereby improving the working efficiency of the entire wastewater treatment device, meeting the needs of larger-scale wastewater treatment or shortening the treatment cycle, and improving the operational efficiency of wastewater treatment facilities.

[0009] In addition, the wastewater treatment tank proposed in the application may also have the following additional technical features:

[0010] Specifically, the filtration mechanism includes a funnel-shaped filter screen, a conical retaining ring, and a connecting cylinder. The funnel-shaped filter screen is fixedly disposed on the inner wall of the tank. The conical retaining ring is disposed below the funnel-shaped filter screen and communicates with the funnel-shaped filter screen through the connecting cylinder. The bottom diameter of the conical retaining ring is smaller than the top diameter of the funnel-shaped filter screen.

[0011] Specifically, the cleaning mechanism includes a bottom-sealed conveying pipe, a support shaft, spiral blades, and multiple scrapers. The top end of the conveying pipe is connected to a connecting cylinder near the bottom of the tank, and the bottom end of the conveying pipe extends out of the tank. A discharge port is provided on the bottom side wall of the conveying pipe. One end of the support shaft is rotatably connected to the bottom wall of the flow equalization plate, and the other end of the support shaft passes through the connecting cylinder and the conveying pipe in sequence and extends to the outside of the conveying pipe. The spiral blades are disposed on the support shaft and are respectively in contact with the inner walls of the connecting cylinder and the conveying pipe. Multiple scrapers are arranged longitudinally side by side on the support shaft, and each scraper is respectively in contact with the inner side of the corresponding funnel-shaped filter screen.

[0012] Specifically, the drive assembly includes a drive mechanism and a belt drive mechanism, wherein the drive mechanism is disposed on the outside of the tank body, and the output end of the drive mechanism is connected to the bottom end of the support shaft through the belt drive mechanism.

[0013] Specifically, a packing layer is provided at the bottom of the inner cavity of the tank.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a perspective view of a sewage treatment tank according to an embodiment of the present utility model;

[0017] Figure 2 This is a cross-sectional view of a sewage treatment tank according to an embodiment of the present invention.

[0018] As shown in the figure: 10. Tank body; 11. Inlet pipe; 12. Drain pipe; 13. Packing layer; 20. Flow equalization plate; 30. Filtration mechanism; 31. Funnel-shaped filter screen; 32. Conical retaining ring; 33. Connecting cylinder; 40. Cleaning mechanism; 41. Conveying pipe; 42. Support shaft; 43. Spiral blade; 44. Scraper; 401. Waste discharge port; 50. Drive assembly; 51. Drive mechanism; 52. Belt drive mechanism. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0020] The wastewater treatment tank of this utility model embodiment will now be described with reference to the accompanying drawings.

[0021] like Figure 1 and Figure 2 As shown, the wastewater treatment tank of this utility model embodiment may include a tank body 10, a flow equalization plate 20, multiple filtration mechanisms 30, a cleaning mechanism 40, and a drive assembly 50.

[0022] The tank 10 has an inlet pipe 11 on its top wall and in the middle, and a drain pipe 12 at the bottom.

[0023] In an embodiment of this utility model, a packing layer 13 is provided at the bottom of the inner cavity of the tank body 10.

[0024] The flow equalization plate 20 is located below the inlet pipe 11 and is installed inside the tank 10. The flow equalization plate 20 is conical. Multiple filter mechanisms 30 are longitudinally and equidistantly distributed inside the tank 10 and located below the flow equalization plate 20. For example, there may be 2, 3, 4, 5, or 6 filter mechanisms 30. The specific number can be selected according to the actual situation and is not limited here. The pore size of the filter mesh in the multiple filter mechanisms 30 decreases gradually from top to bottom.

[0025] One end of the cleaning mechanism 40 is rotatably connected to the flow equalization plate 20, and the other end of the cleaning mechanism 40 passes through multiple filter mechanisms 30 in sequence and extends to the outside of the tank body 10, and the cleaning mechanism 40 is in contact with multiple filter mechanisms 30 respectively.

[0026] The drive assembly 50 is located on the outside of the tank 10 and is connected to the other end of the cleaning mechanism 40.

[0027] To clearly illustrate the previous embodiment, in one embodiment of this utility model, as follows: Figure 2 As shown, the filtration mechanism 30 may include a funnel-shaped filter screen 31, a conical retaining ring 32, and a connecting cylinder 33.

[0028] The funnel-shaped filter screen 31 is fixedly mounted on the inner wall of the tank 10, and the conical retaining ring 32 is positioned below the funnel-shaped filter screen 31 and connected to it via a connecting cylinder 33. The bottom diameter of the conical retaining ring 32 is smaller than the top diameter of the funnel-shaped filter screen 31. That is, the maximum circumferential radius of the funnel-shaped filter screen 31 is greater than the maximum circumferential radius of the conical retaining ring 32.

[0029] It should be noted that, in the above examples, the mesh size of the funnel-shaped filter plate 31 in the uppermost filter mechanism 30 gradually decreases from the uppermost filter mechanism 30 to the uppermost filter mechanism 30.

[0030] Furthermore, in one embodiment of this utility model, such as Figure 2 As shown, the cleaning mechanism 40 may include a bottom-sealed delivery pipe 41, a support shaft 42, a spiral blade 43, and a plurality of scrapers 44.

[0031] The top end of the conveying pipe 41 is connected to a connecting cylinder 33 near the bottom of the tank 10, the bottom end of the conveying pipe 41 extends through the tank 10, and a discharge port 401 is provided on the bottom side wall of the conveying pipe 41.

[0032] One end of the support shaft 42 is rotatably connected to the bottom wall of the flow equalization plate 20, and the other end of the support shaft 42 passes through the connecting cylinder 33 and the conveying pipe 41 in sequence and extends to the outside of the conveying pipe 41.

[0033] The spiral blade 43 is mounted on the support shaft 42, and the spiral blade 43 is in contact with the inner wall of the connecting cylinder 33 and the conveying pipe 41 respectively.

[0034] Multiple scrapers 44 are arranged longitudinally side by side on the support shaft 42, and each scraper 44 is in contact with the inner side of the corresponding funnel-shaped filter screen 31. It should be noted that the number of scrapers 44 used in this embodiment can be the same as the number of filter mechanisms 30 used. The specific number can be selected according to the actual situation, which will not be elaborated on here.

[0035] In one embodiment of this utility model, such as Figure 1 As shown, the drive assembly 50 may include a drive mechanism 51 and a belt drive mechanism 52. The drive mechanism 51 is disposed on the outside of the tank body 10, and the output end of the drive mechanism 51 is connected to the bottom end of the support shaft 42 through the belt drive mechanism 52. It should be noted that the drive mechanism 51 described in this embodiment may be a drive motor.

[0036] It should be noted that the belt drive mechanism 52 described in this embodiment may include two pulleys and a belt, one of which is fixedly mounted on the support shaft 42, and the other pulley is connected to the output end of the drive mechanism 51, with the belt mounted on both pulleys.

[0037] Specifically, when sewage needs to be treated, the relevant personnel first need to fix the treatment tank on the support. Then, the personnel can connect the outlet of the water pump to the inlet pipe 11 on the tank 10 through the pipeline, and then put the water pump into the sewage. By controlling the water pump, the sewage is pumped into the tank 10. The sewage entering the tank 10 is dispersed and flows in all directions under the action of the flow equalization plate 20.

[0038] The wastewater entering the tank 10 passes through multiple filtration mechanisms 30 in sequence to filter particles of different sizes. Taking one of the filtration mechanisms 30 as an example, when the wastewater passes through the funnel-shaped filter screen 31 in the filtration mechanism 30, impurities in the wastewater are filtered onto the funnel-shaped filter screen 31, while the remaining wastewater flows downwards through the funnel-shaped filter screen 31. When it flows onto the conical baffle ring 32, it flows along the slope of the conical baffle ring 32 into the funnel-shaped filter screen 31 in the filtration mechanism 30 below it for further filtration. This process is repeated to continuously filter impurities in the wastewater stage by stage.

[0039] Finally, the wastewater filtered by the funnel-shaped filter screen 31 can enter the packing layer 13 for further filtration, and the filtered wastewater is discharged through the drain pipe 12.

[0040] When it is necessary to clean the sewage impurities filtered on the funnel-shaped filter screen 31, the operator can control the drive mechanism 51 to drive the belt drive mechanism 52 to rotate the support shaft 42. The rotating support shaft 42 drives the spiral blades 43 and multiple scrapers 44 to rotate synchronously. The rotating multiple scrapers 44 scrape the sewage impurities filtered on the corresponding funnel-shaped filter screen 31 into the corresponding connecting cylinder 33.

[0041] At the same time, the rotating helical blades 43 scrape the impurities in the connecting cylinder 33 and transport them into the conveying pipe 41, and discharge them through the discharge port 401 of the conveying pipe 41.

[0042] In summary, the wastewater treatment tank of this utility model embodiment can effectively clean the impurities filtered on the filter plate, no longer relying solely on the gravity of the impurities. It can accelerate the separation process between impurities and wastewater, allowing wastewater to pass through each filtration stage more quickly. This increases the amount of wastewater treated per unit time, thereby improving the working efficiency of the entire wastewater treatment device, meeting the needs of larger-scale wastewater treatment or shortening the treatment cycle, and improving the operational efficiency of wastewater treatment facilities.

[0043] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A sewage treatment tank, characterized in that, It includes a tank, a flow distribution plate, multiple filtration mechanisms, a cleaning mechanism, and a drive assembly, among which, A water inlet pipe is provided on the top wall of the tank and located in the middle position, and a drain pipe is provided at the bottom of the tank; The flow equalization plate is located below the water inlet pipe and is mounted inside the tank. Multiple filter mechanisms are longitudinally and equidistantly distributed inside the tank and located below the flow equalization plate, wherein the pore size of the filter mesh in the multiple filter mechanisms decreases progressively from top to bottom; One end of the cleaning mechanism is rotatably connected to the flow equalization plate, and the other end of the cleaning mechanism passes through multiple filter mechanisms in sequence and extends to the outside of the tank body, and the cleaning mechanism is in contact with multiple filter mechanisms respectively; The drive assembly is located on the outside of the tank and is connected to the other end of the cleaning mechanism.

2. The wastewater treatment tank according to claim 1, characterized in that, The filtration mechanism includes a funnel-shaped filter screen, a conical retaining ring, and a connecting cylinder, wherein... The funnel-shaped filter screen is fixedly installed on the inner wall of the tank. The conical retaining ring is disposed below the funnel-shaped filter screen and is connected to the funnel-shaped filter screen through the connecting cylinder, wherein the bottom diameter of the conical retaining ring is smaller than the top diameter of the funnel-shaped filter screen.

3. The wastewater treatment tank according to claim 2, characterized in that, The cleaning mechanism includes a bottom-sealed conveying pipe, a support shaft, spiral blades, and multiple scrapers, wherein... The top end of the conveying pipe is connected to a connecting cylinder near the bottom of the tank, the bottom end of the conveying pipe extends through the tank, and a discharge port is provided on the bottom side wall of the conveying pipe. One end of the support shaft is rotatably connected to the bottom wall of the flow equalization plate, and the other end of the support shaft passes through the connecting cylinder and the conveying pipe in sequence and extends to the outside of the conveying pipe. The spiral blades are mounted on the support shaft, and the spiral blades are respectively in contact with the inner walls of the connecting cylinder and the conveying pipe; Multiple scrapers are arranged longitudinally side by side on the support shaft, and each scraper is in contact with the inner side of the corresponding funnel-shaped filter screen.

4. The wastewater treatment tank according to claim 3, characterized in that, The drive assembly includes a drive mechanism and a belt drive mechanism, wherein the drive mechanism is disposed on the outside of the tank body, and the output end of the drive mechanism is connected to the bottom end of the support shaft through the belt drive mechanism.

5. The wastewater treatment tank according to claim 1, characterized in that, The bottom of the inner cavity of the tank is provided with a packing layer.

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