A composite filter device for simultaneous nitrogen and phosphorus removal of rural sewage

Abstract

The utility model relates to sewage treatment equipment technical field discloses a kind of composite filter devices of rural sewage simultaneous denitrification and phosphorus removal, including device main body, the front end of device main body is hinged with cabinet door.This composite filter device of rural sewage simultaneous denitrification and phosphorus removal, by installing fixed mechanism, when needing to replace filter plate, by screwing pull rod and driving limit block rotation, the bottom of limit block far from horizontal plate, horizontal plate is not extruded by limit block at this time, the rebound force of spring can push horizontal plate and drive plug plate to separate from the inside of insertion slot, filter plate can be taken out from the inside of sedimentation chamber, it is convenient for user to clean and maintain filter plate, avoid the surface of filter plate to appear jamming phenomenon, after cleaning and replacement are completed, filter plate can be installed by reverse operation, it is simple and convenient to operate, greatly improve the efficiency of filter plate replacement cleaning, reduce equipment maintenance time and manpower cost.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment equipment technology, and in particular to a composite filtration device for simultaneous nitrogen and phosphorus removal from rural sewage. Background Technology

[0002] With the development of the rural economy and the improvement of living standards, the amount of rural sewage discharge is increasing day by day. Rural sewage contains a large amount of pollutants such as nitrogen and phosphorus. If it is discharged directly without effective treatment, it will lead to eutrophication of water bodies, damage the ecological environment, and affect the quality of life and health of rural residents. Therefore, a composite filtration device for simultaneous nitrogen and phosphorus removal from rural sewage is needed.

[0003] In practical use, the filter plates of traditional rural sewage simultaneous denitrification and phosphorus removal composite filtration devices, as important filtration components, are prone to clogging due to the interception of a large number of impurities, microorganisms and reaction products, which affects the sewage treatment efficiency and effect. At present, the replacement and cleaning of filter plates of most filtration devices is quite cumbersome, usually requiring specific operating tools, which is time-consuming and labor-intensive. This not only increases maintenance costs, but also easily leads to long-term equipment downtime, affecting the normal treatment of rural sewage. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing composite filtration device for simultaneous denitrification and phosphorus removal of rural sewage has the disadvantage of inconvenient filter plate replacement. Therefore, we propose a composite filtration device for simultaneous denitrification and phosphorus removal of rural sewage.

[0005] To achieve the above objectives, this application adopts the following technical solution: a composite filtration device for simultaneous nitrogen and phosphorus removal from rural sewage, comprising a device body, a cabinet door that rotates at the front end of the device body via a hinge, and an anaerobic reaction chamber, an anoxic reaction chamber, an aerobic reaction chamber, and a sedimentation chamber that are sequentially connected inside the device body. A filter plate is installed inside the sedimentation chamber, a connecting plate is fixed to the front end of the filter plate, a pull plate is fixed to the front end of the connecting plate, and a shell is fixed to the front end of the sedimentation chamber.

[0006] The housing is equipped with a fixing mechanism for securing the pull plate.

[0007] Preferably, the fixing mechanism includes a pull rod threaded to the side wall of the housing, a limit block fixed at one end of the pull rod inside the housing, a horizontal plate slidably connected inside the housing, an insert plate fixed at the top of the horizontal plate, and a slot for cooperating with the insert plate on the surface of the pull plate.

[0008] Preferably, springs are fixed at both ends of one side of the cross plate, and the other end of the spring is fixed to the inside of the housing.

[0009] Preferably, the limiting block is elliptical in shape.

[0010] Preferably, both sides of the interior of the housing are fixed with sliding plates, and both ends of the horizontal plate are provided with sliding grooves for use with the sliding plates.

[0011] Preferably, a gasket is fitted on the surface of the pull rod, and the gasket is made of rubber.

[0012] Preferably, an elastic seal is fixed on one side of the connecting plate, and a sealing groove that cooperates with the elastic seal is opened at the front end of the sedimentation chamber.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] In this invention, by installing a fixing mechanism, when the filter plate needs to be replaced, the pull rod is turned to rotate the limiting block, causing the limiting block to move away from the bottom of the horizontal plate. At this time, the horizontal plate is no longer squeezed by the limiting block, and the spring's rebound force can push the horizontal plate to disengage the insert plate from the inside of the slot, thus removing the filter plate from the sedimentation chamber. This makes it convenient for users to clean and maintain the filter plate, avoiding clogging on the surface of the filter plate. After cleaning and replacement, the filter plate can be installed by reversing the operation. The operation is simple and convenient, greatly improving the efficiency of filter plate replacement and cleaning, and reducing equipment maintenance time and labor costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the main body of the device of this utility model;

[0017] Figure 3 This is a schematic diagram of the filter plate installation structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the shell of this utility model;

[0019] Figure 5 This is a cross-sectional view of the sedimentation chamber of this utility model.

[0020] Legend: 1. Main body of the device; 2. Cabinet door; 3. Anaerobic reaction chamber; 4. Anoxic reaction chamber; 5. Aerobic reaction chamber; 6. Sedimentation chamber; 7. Filter plate; 8. Connecting plate; 9. Pull plate; 10. Shell; 11. Pull rod; 12. Limiting block; 13. Horizontal plate; 14. Insert plate; 15. Slot; 16. Spring; 17. Slide plate; 18. Slide groove; 19. Gasket; 20. Elastic seal; 21. Sealing groove. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] Reference Figure 1 - Figure 5 As shown, this utility model provides a technical solution: a composite filtration device for simultaneous nitrogen and phosphorus removal from rural sewage, comprising a main body 1, a cabinet door 2 that rotates at the front end of the main body 1 via a hinge, and an anaerobic reaction chamber 3, an anoxic reaction chamber 4, an aerobic reaction chamber 5, and a sedimentation chamber 6 connected in sequence inside the main body 1. A filter plate 7 is installed inside the sedimentation chamber 6, a connecting plate 8 is fixed to the front end of the filter plate 7, and a pull plate 9 is fixed to the front end of the connecting plate 8. A housing 10 is fixed to the front end of the sedimentation chamber 6. A fixing mechanism for fixing the pull plate 9 is installed inside the housing 10. The fixing mechanism includes a pull rod 11 threadedly connected to the side wall of the housing 10, a limit block 12 fixed to one end of the pull rod 11 inside the housing 10, a horizontal plate 13 slidably connected inside the housing 10, an insert plate 14 fixed to the top of the horizontal plate 13, and the surface of the pull plate 9... The plate 13 has a slot 15 for use with the insert plate 14. Springs 16 are fixed at both ends of one side of the horizontal plate 13. The other end of the springs 16 is fixed to the inside of the housing 10. By installing the fixing mechanism, when the filter plate 7 needs to be replaced, the limit block 12 is rotated by turning the pull rod 11, so that the limit block 12 is away from the bottom of the horizontal plate 13. At this time, the horizontal plate 13 is not squeezed by the limit block 12. The spring force of the spring 16 can push the horizontal plate 13 to drive the insert plate 14 out of the slot 15, so that the filter plate 7 can be taken out from the sedimentation chamber 6. This makes it convenient for users to clean and maintain the filter plate 7 and avoid the surface of the filter plate 7 from becoming blocked. After cleaning and replacement, the filter plate 7 can be installed by reversing the operation. The operation is simple and convenient, which greatly improves the efficiency of filter plate 7 replacement and cleaning and reduces equipment maintenance time and labor costs.

[0023] Reference Figure 4 As shown in this embodiment, the limiting block 12 is elliptical in shape. The elliptical design of the limiting block 12 reduces the contact area between the limiting block 12 and the horizontal plate 13, thereby making the movement between the limiting block 12 and the horizontal plate 13 smoother and less strenuous.

[0024] Reference Figure 4 As shown in this embodiment: Slide plates 17 are fixed on both sides inside the housing 10, and grooves 18 that cooperate with slide plates 17 are opened at both ends of the horizontal plate 13. Through the structure of slide plates 17 and grooves 18, the movement trajectory of the horizontal plate 13 can be restricted, so as to avoid the horizontal plate 13 from deviating during movement inside the housing 10 and improve the insertion effect between the insert plate 14 and the slot 15.

[0025] Reference Figure 4 As shown in this embodiment: a gasket 19 is fitted on the surface of the pull rod 11. The gasket 19 is made of rubber. By setting the gasket 19, the properties of the rubber material can further increase the firmness between the pull rod 11 and the housing 10, and prevent the pull rod 11 from becoming loose and affecting the fixing effect.

[0026] Reference Figure 5 As shown in this embodiment: an elastic sealing element 20 is fixed on one side of the connecting plate 8, and a sealing groove 21 that cooperates with the elastic sealing element 20 is opened at the front end of the sedimentation chamber 6. Through the structure of the elastic sealing element 20 and the sealing groove 21, the filter plate 7 can be effectively prevented from leaking sewage during the filtration process, thus ensuring the sealing performance of the sedimentation chamber 6 and the sewage treatment effect.

[0027] Working principle: When the filter plate 7 needs to be replaced, the user can install and fix the mechanism. By turning the pull rod 11, the limiting block 12 rotates, moving it away from the bottom of the horizontal plate 13. At this time, the horizontal plate 13 is no longer squeezed by the limiting block 12. The spring force of the spring 16 pushes the horizontal plate 13, causing the insert plate 14 to disengage from the slot 15. The filter plate 7 can then be removed from the sedimentation chamber 6, facilitating cleaning and maintenance. This prevents clogging of the filter plate 7 surface. After cleaning and replacement, the operation is reversed to install the filter plate 7. The operation is simple and convenient, greatly improving the efficiency of filter plate replacement and cleaning, reducing equipment maintenance time and labor costs. The elliptical design of the limiting block 12 further enhances this feature. The contact area between the limiting block 12 and the horizontal plate 13 can be reduced, making the movement between the limiting block 12 and the horizontal plate 13 smoother and less strenuous. The structure of the sliding plate 17 and the sliding groove 18 can restrict the movement trajectory of the horizontal plate 13, preventing the horizontal plate 13 from deviating within the housing 10 and improving the insertion effect between the insert plate 14 and the slot 15. The rubber material of the gasket 19 can further increase the firmness between the pull rod 11 and the housing 10, preventing the pull rod 11 from loosening and affecting the fixing effect. The structure of the elastic seal 20 and the sealing groove 21 can effectively prevent sewage leakage from the filter plate 7 during the filtration process, ensuring the sealing of the sedimentation chamber 6 and the sewage treatment effect.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A composite filtration device for simultaneous nitrogen and phosphorus removal from rural sewage, comprising a main body (1), characterized in that: The front end of the main body (1) of the device has a cabinet door (2) that rotates via a hinge. The interior of the main body (1) is provided with an anaerobic reaction chamber (3), an anoxic reaction chamber (4), an aerobic reaction chamber (5), and a sedimentation chamber (6) that are connected in sequence. The sedimentation chamber (6) is provided with a filter plate (7). The front end of the filter plate (7) is fixed with a connecting plate (8). The front end of the connecting plate (8) is fixed with a pull plate (9). The front end of the sedimentation chamber (6) is fixed with a shell (10). The housing (10) is equipped with a fixing mechanism for fixing the pull plate (9).

2. The composite filtration device for simultaneous nitrogen and phosphorus removal from rural sewage according to claim 1, characterized in that: The fixing mechanism includes a pull rod (11) threaded to the side wall of the housing (10), a limit block (12) fixed at one end of the pull rod (11) inside the housing (10), a horizontal plate (13) slidably connected inside the housing (10), an insert plate (14) fixed at the top of the horizontal plate (13), and a slot (15) for cooperating with the insert plate (14) on the surface of the pull plate (9).

3. The composite filtration device for simultaneous nitrogen and phosphorus removal from rural sewage according to claim 2, characterized in that: Springs (16) are fixed at both ends of one side of the horizontal plate (13), and the other end of the springs (16) is fixed to the inside of the housing (10).

4. The composite filtration device for simultaneous nitrogen and phosphorus removal from rural sewage according to claim 2, characterized in that: The limiting block (12) is elliptical in shape.

5. The composite filtration device for simultaneous nitrogen and phosphorus removal from rural sewage according to claim 2, characterized in that: Slide plates (17) are fixed on both sides inside the housing (10), and grooves (18) that cooperate with the slide plates (17) are provided at both ends of the horizontal plate (13).

6. The composite filtration device for simultaneous nitrogen and phosphorus removal from rural sewage according to claim 2, characterized in that: The surface of the pull rod (11) is fitted with a gasket (19), and the gasket (19) is made of rubber.

7. The composite filtration device for simultaneous nitrogen and phosphorus removal from rural sewage according to claim 1, characterized in that: An elastic sealing element (20) is fixed on one side of the connecting plate (8), and a sealing groove (21) that cooperates with the elastic sealing element (20) is opened at the front end of the sedimentation chamber (6).

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