A segmented sewage treatment tower and method of use thereof

Abstract

This invention relates to the field of wastewater treatment technology, and in particular to a segmented wastewater treatment tower and its method of use, comprising a filter tower; a filter element disposed at the lower part of the filter tower; and a power component disposed at the lower part of the filter element. The filter element includes two filter chambers disposed at the lower part of the filter tower, an overflow section disposed at the lower part of the filter chamber, a co-current section disposed at the lower part of the overflow section, a top rod disposed at the lower part of the co-current section, and a secondary drain outlet disposed at the lower part of the top rod. The power component includes a cross plate disposed at the lower part of the top rod, and a connecting rod disposed on the side wall of the cross plate. By setting up two independent sets of main and secondary filter elements, the system can automatically switch the wastewater flow path to the prepared secondary filter element when the main filter element is blocked. The entire process does not require interruption of water intake or additional external control commands, ensuring the continuous and stable operation of the wastewater treatment production line.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a segmented wastewater treatment tower and its method of use. Background Technology

[0002] In wastewater treatment, multi-stage filtration is required using filter towers and other equipment. Filter tower technology is a product of combining traditional filtration processes with chemical tower design concepts. It uses a three-dimensional structure and high-efficiency media to filter and intercept impurities, thus cleaning wastewater more efficiently.

[0003] However, existing segmented wastewater treatment towers typically have interceptor filter plates installed at the outlet end of the tower to prevent water from carrying away the filter media and small amounts of impurities. However, during prolonged filtration, the filter plates at the outlet end of existing segmented filter towers often become clogged, requiring cleaning before the segmented filter tower can be put back into operation. This cleaning process necessitates stopping the wastewater filtration process, which undoubtedly reduces the efficiency of the filtration work. Furthermore, the time spent cleaning impurities also reduces the efficiency of the filtration work. Summary of the Invention

[0004] In view of the problems of prolonged maintenance time and reduced filtration efficiency caused by cleaning filter plates in the above or existing technologies, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a segmented wastewater treatment tower and its method of use.

[0006] As a preferred embodiment of the segmented wastewater treatment tower of the present invention, it includes a filtration tower;

[0007] The filter element is installed at the bottom of the filter tower, and the power component is installed at the bottom of the filter element;

[0008] The filter element includes two filter chambers disposed at the lower part of the filter tower. The lower part of the filter chamber is provided with an overflow section, the lower part of the overflow section is provided with a co-current section, the lower part of the co-current section is provided with a top rod, and the lower part of the top rod is provided with a secondary drain outlet.

[0009] The power component includes a cross plate disposed at the lower part of the top rod, a connecting rod disposed on the side wall of the cross plate, a movable rod disposed at the end of the connecting rod, a float disposed at the lower part of the movable rod, and a pressure tank disposed on the outer wall of the float.

[0010] As a preferred embodiment of the segmented wastewater treatment tower of the present invention, the upper part of the filter tower is provided with a wastewater end, the interior of the filter tower is provided with a plurality of media layers for placing filter media, the lower part of the filter tower is provided with a connecting end for connecting with the filter element, and the bottom surface of the filter tower is provided with a fixing chamber.

[0011] As a preferred embodiment of the segmented sewage treatment tower of the present invention, wherein: the upper part of the filter chamber is provided with a connecting part communicating with the connecting end, the interior of the overflow part is provided with a filter ring plate, and the lower part of the connecting part is provided with an overflow pipe.

[0012] As a preferred embodiment of the segmented sewage treatment tower of the present invention, a limiting cap is provided in the middle of the downstream section, an upward moving head is provided at the lower part of the limiting cap, and a spring is provided inside the upward moving head.

[0013] As a preferred embodiment of the segmented sewage treatment tower of the present invention, a limiting cap is provided in the middle of the downstream section, an upward moving head is provided at the lower part of the limiting cap, and a spring is provided inside the upward moving head.

[0014] As a preferred embodiment of the segmented sewage treatment tower of the present invention, the outer wall of the top rod is provided with a filter plate, the outer wall of the filter plate is provided with an upward moving silo, the lower part of the filter plate is provided with a main water outlet, and the end of the main water outlet is provided with a secondary water outlet connected to the filter chamber.

[0015] As a preferred embodiment of the segmented sewage treatment tower of the present invention, a secondary outlet is provided at the lower part of the secondary drain outlet, a plug is provided at the lower part of the secondary outlet, and a connecting pipe is provided at the lower part of the plug.

[0016] As a preferred embodiment of the segmented sewage treatment tower of the present invention, a one-way valve is provided in the middle of the connecting pipe.

[0017] As a preferred embodiment of the segmented sewage treatment tower of the present invention, wherein: the side wall of the power component is provided with a circulation component, the circulation component includes an extension rod provided on the side wall of the cross plate, the side wall of the extension rod is provided with a toothed plate, and the side wall of the toothed plate is provided with a gear.

[0018] As a preferred embodiment of the segmented sewage treatment tower of the present invention, wherein: the side wall of the co-current section is provided with a cleaning component, the cleaning component includes a cleaning port opened on the side wall of the filter chamber, and a sealing plate door is provided inside the cleaning port.

[0019] To better achieve the objectives of this invention, this invention also provides a segmented wastewater treatment tower and its method of use, comprising the following steps:

[0020] S1: Set the main filter element and the auxiliary filter element in the initial position. The main filter element is in the filtration position with its filter plate in the low position. The main outlet end is connected to the auxiliary outlet end, and the plug seals the corresponding connecting pipe. The auxiliary filter element is in the squeezing position with its upper moving head inserted into the limiting cap. The filter plate is in the high position and forms a squeezing space with the lower part of the limiting cap. The wastewater to be treated is introduced into the filter tower and enters the main filter element in the filtration position after being filtered by multiple media. The wastewater flows through the filter chamber, overflow section and co-current section of the main filter element in sequence and is intercepted and filtered by the filter plate. The filtered clean water is discharged through the main outlet end and the auxiliary outlet end.

[0021] S2: When impurities accumulate on the surface of the filter plate of the main filter element to the point of blockage, the water level above it rises; when the water level rises to the height of the overflow pipe of the overflow section, some water flows through the filter ring plate into the overflow pipe and into the corresponding pressure tank.

[0022] As the water level in the pressure tank rises, it drives the float to rise, which in turn moves the cross plate and the top rod upwards via the movable rod and connecting rod.

[0023] The upward movement of the push rod causes the filter plate of the main filter element and the upward-moving silo to move upward as a whole, achieving:

[0024] A: Move the main water outlet upwards and offset it from the auxiliary water outlet to cut off the main filter water outlet path;

[0025] B: The secondary drain outlet is moved to the original filter plate position and becomes the new water inlet;

[0026] C: The plug moves up, opening the inlet of the corresponding connecting tube;

[0027] S3: Wastewater from the main filter enters the upward silo through the secondary drain and is guided downward to the auxiliary filter through the open connecting pipe and one-way valve.

[0028] Meanwhile, the continuously rising filter plate squeezes and dehydrates the impurities accumulated on its top in the sealed space formed under the limiting cap, forming a block filter cake. Under the linkage of the circulation component, the cross plate of the main filter element moves upward. Through the meshing of the toothed plate and gear, it drives the cross plate of the secondary filter element to move in the opposite direction, so that the secondary filter element is reset from the preparatory position to the filtration position and begins to receive and process the sewage from the main filter element.

[0029] S4: For the main filter element that has completed impurity pressing and is in the preparation and extrusion position, open the sealing plate door of its cleaning port, remove the blocky filter cake, and then close the seal. When the filter plate of the secondary filter element becomes clogged, repeat steps B and C. At this time, the power transmission direction is reversed, the secondary filter element moves upward and enters the extrusion state, and at the same time, the main filter element moves downward and resets to the filtration position, thereby realizing the cyclic switching of the working state of the main and secondary filter elements and the uninterrupted continuous treatment of sewage.

[0030] The beneficial effects of the segmented sewage treatment tower of the present invention are as follows: by setting up two independent sets of main and auxiliary filters, the system can automatically switch the sewage flow path to the prepared auxiliary filter when the main filter is blocked. The whole process does not require interruption of water intake and no additional external control commands are needed, thus ensuring the continuous and stable operation of the sewage treatment production line.

[0031] When the filter element becomes clogged, the internal filter plate moves upward under the drive of the power component, forming a sealed compression chamber with the bottom of the limit cap. The sludge and impurities intercepted on the filter plate are strongly squeezed in this space, and the water is squeezed out and flows back to the subsequent filtration process. The impurities are compressed into a dense block filter cake, ensuring that the squeezed water is not carried out with the filter during cleaning, making it easy to clean. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the overall structure of a segmented sewage treatment tower according to the present invention.

[0034] Figure 2 This is a schematic diagram of the internal structure of a segmented wastewater treatment tower according to the present invention.

[0035] Figure 3 This is a schematic diagram of the overall structure of a segmented wastewater treatment tower according to the present invention.

[0036] Figure 4 This is a schematic diagram of the overall structure of the filter element of a segmented sewage treatment tower according to the present invention.

[0037] Figure 5 This is a schematic diagram of the internal structure of the filter element in a segmented wastewater treatment tower according to the present invention.

[0038] Figure 6 This is a schematic diagram of the internal structure of a filter element in a segmented wastewater treatment tower according to the present invention.

[0039] Figure 7 This is a schematic diagram of the circulation component structure of a segmented sewage treatment tower according to the present invention.

[0040] Figure 8 This is a schematic diagram of the cleaning component structure of a segmented sewage treatment tower according to the present invention.

[0041] The labels in the diagram represent: 1. Filter tower; 11. Wastewater end; 12. Media layer; 13. Connection end; 2. Fixed chamber; 3. Filter element; 31. Filter chamber; 311. Connection part; 32. Overflow part; 321. Filter ring plate; 322. Overflow pipe; 33. Flow section; 331. Limit cap; 332. Upward moving head; 333. Spring; 34. Push rod; 341. Filter plate; 342. Upward moving silo; 34 5. Main outlet; 346. Secondary outlet; 35. Secondary drain outlet; 351. Secondary outlet; 352. Plug; 4. Connecting pipe; 41. Check valve; 5. Power component; 51. Cross plate; 511. Connecting rod; 52. Movable rod; 521. Pressure tank; 522. Float; 6. Circulation component; 61. Extension rod; 62. Toothed plate; 63. Gear; 7. Cleaning component; 71. Cleaning port; 72. Sealing plate door. Detailed Implementation

[0042] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0044] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0045] Example 1, referring to Figures 1 to 6 This is the first embodiment of the present invention. This embodiment provides a segmented sewage treatment tower and its usage method, which can achieve continuous filtration and compress impurities into blocks for easy cleaning. It includes a filter tower 1.

[0046] Specifically, the filter element 3 is installed at the bottom of the filter tower 1, and the power element 5 is installed at the bottom of the filter element 3;

[0047] The filter element 3 includes two filter chambers 31 located at the bottom of the filter tower 1. The bottom of the filter chamber 31 is provided with an overflow section 32, the bottom of the overflow section 32 is provided with a co-current section 33, the bottom of the co-current section 33 is provided with a top rod 34, and the bottom of the top rod 34 is provided with a secondary drain outlet 35.

[0048] The power component 5 includes a cross plate 51 disposed at the lower part of the top rod 34, a connecting rod 511 disposed on the side wall of the cross plate 51, a movable rod 52 disposed at the end of the connecting rod 511, a float 522 disposed at the lower part of the movable rod 52, and a pressure tank 521 disposed on the outer wall of the float 522.

[0049] Specifically, the upper part of the filter chamber 31 is provided with a connecting part 311 that communicates with the connecting end 13, the interior of the overflow part 32 is provided with a filter ring plate 321, and the lower part of the connecting part 311 is provided with an overflow pipe 322.

[0050] Specifically, a limit cap 331 is provided in the middle of the downstream section 33, and an upward moving head 332 is provided at the lower part of the limit cap 331. A spring 333 is provided inside the upward moving head 332.

[0051] Specifically, a filter plate 341 is provided on the outer wall of the top rod 34, an upward silo 342 is provided on the outer wall of the filter plate 341, a main water outlet 345 is provided at the lower part of the filter plate 341, and a secondary water outlet 346 connected to the filter chamber 31 is provided at the end of the main water outlet 345.

[0052] Specifically, a secondary outlet 351 is provided at the lower part of the secondary drain outlet 35, a plug 352 is provided at the lower part of the secondary outlet 351, and a connecting pipe 4 is provided at the lower part of the plug 352.

[0053] Furthermore, there are two filter elements 3, namely a main filter element and a secondary filter element. The main filter element 3 is located at the lower part of the filter tower 1 and is connected to the lower inner wall of the filter tower 1 through the upper filter chamber 31. The secondary filter element 3 is located directly below the main filter element 3, and the filter chamber 31 of the secondary filter element 3 is in a closed state. Each filter chamber 31 is provided with an overflow section 32 at its lower part.

[0054] The diameter of the overflow section 32 is larger than the diameter of the filter chamber 31, and a filter ring plate 321 is fixedly connected to the inner wall of each overflow section 32. The outer wall of the overflow section 32 has four overflow pipes 322 arranged in a ring, and the overflow pipes 322 are connected to the overflow section 32.

[0055] It should be noted that the function of the filter ring plate 321 is to prevent impurities from being mixed in the filtered wastewater and to prevent impurities from directly entering the inner wall of the overflow pipe 322. The filter ring plate 321 intercepts impurities in the wastewater on the inner wall of the overflow section 32.

[0056] Each overflow section 32 is provided with a downstream section 33 at its lower part, and a limiting cap 331 is fixedly installed in the middle of each downstream section 33. The diameter of the limiting cap 331 is smaller than the diameter of the overflow section 32, and an opening for sewage to flow downward is provided between the limiting cap 331 and the overflow section 32.

[0057] Each limit cap 331 has an upper moving head 332 at its lower part. The outer wall of the upper moving head 332 matches the inner wall of the limit cap 331. Each upper moving head 332 has a spring 333 on its inner wall.

[0058] It should be noted that the top of the spring 333 is fixedly connected to the top surface of the inner wall of the upper moving head 332;

[0059] The top end of the push rod 34 is inserted into the inner wall of the upper moving head 332, and the top surface of the push rod 34 is fixedly connected to the bottom end of the spring 333. The filter plate 341 is disposed at the lower part of the upper moving head 332 and is fixedly connected to the outer wall of the push rod 34. The outer wall of each filter plate 341 is fixedly connected to the inner wall of an upper moving silo 342. The main water outlet 345 is opened on the side wall of the upper moving silo 342 and is close to the bottom surface of the filter plate 341. The auxiliary water outlet 346 is opened on the outer wall of the filter chamber 31 and is connected to the main water outlet 345. The main water outlet 345 and the auxiliary water outlet 346 have the same diameter.

[0060] It should be noted that the upward moving silo 342 is slidably connected to the lower inner wall of the filter chamber 31, and the top surface of the upward moving silo 342 is lower than the bottom surface of the upward moving head 332.

[0061] The secondary drain outlet 35 is opened through the outer wall of the upper silo 342. The secondary drain outlet 35 is located below the main outlet 345. A secondary outlet 351 is opened through the bottom surface of each upper silo 342. There are two connecting pipes 4 connected to the bottom surface of the filter chamber 31 at the bottom of each secondary outlet 351. A plug 352 is provided at the top of each connecting pipe 4. The top surface of the plug 352 is fixedly connected to the bottom surface of the upper silo 342.

[0062] The bottom surface of each top rod 34 is fixedly connected to the top surface of the middle part of a cross plate 51. One side and the opposite side of each cross plate 51 are fixedly connected to a connecting rod 511. The upper side wall of each connecting rod 511 is fixedly connected to the upper outer wall of a movable rod 52. The bottom outer wall of each movable rod 52 is fixedly connected to the middle part of a float 522. Each float 522 has a pressure tank 521 on its outer wall, and the movable rod 52 is movably inserted into the inner wall of the pressure tank 521.

[0063] It should be noted that float 522 is a hollow structure. When water is stored in the inner wall of pressure tank 521, float 522 floats up and exerts an upward force on moving rod 52.

[0064] The pressure tank 521 located closest to the main and auxiliary filter elements 3 is respectively connected to a nearby overflow pipe 322, and the lower end of the overflow pipe 322 is connected to the lower inner wall of the pressure tank 521.

[0065] Specifically, a one-way valve 41 is provided in the middle of the connecting pipe 4.

[0066] It should be noted separately that: the connecting pipe 4 is used to connect the upper part of the main filter element 3 and the lower part of the secondary filter element 3, and they are interconnected. There are two sets, with two in each set. A one-way valve 41 is fixedly installed in the middle of each connecting pipe 4.

[0067] The connecting pipe 4 connects the upper part of the main filter element 3 and the lower part of the auxiliary filter element 3: the one-way valve 41 fixedly installed in the middle can only convey from the bottom to the top. The connecting pipe 4, which is located at the lower part of the main filter element 3 and connects to the bottom surface of the filter chamber 31, cooperates with the two plugs 352 at its upper part. 353 is inserted into the inner wall of the top of the connecting pipe 4.

[0068] The connecting pipe 4 connects the lower part of the main filter element 3 and the upper part of the auxiliary filter element 3: the fixed one-way valve 41 can only convey from top to bottom, the connecting pipe 4 located at the lower part of the auxiliary filter element 3 and connected to the bottom surface of the filter chamber 31 cooperates with the two plugs 352 at its upper part, and 353 is inserted into the inner wall of the top of the connecting pipe 4.

[0069] In use: Wastewater is transported from the top of the filter tower 1 into its interior and filtered through the multi-layer filter media inside the filter tower 1. The filtered water is then transported along the bottom of the filter tower 1 to the main filter element 3.

[0070] Water flows downward along the filter chamber 31 of the main filter element 3. The water flows along the inner wall of the filter chamber 31 to the overflow section 32, and then flows downward along the inner wall of the overflow section 32. When the water flows into the interior of the downstream section 33, it flows downward through the outer wall of the limiting cap 331 to the lower part of the upward moving head 332, and then flows to the top surface of the filter plate 341 at the lower part of the upward moving head 332, where it is filtered by the filter plate 341.

[0071] The water that has been filtered once again flows through the filter plate 341 to the inner wall of the lower moving silo 342. Then, when the water level inside the moving silo 342 rises to be level with the main outlet 345, the water flows along the inner wall of the main outlet 345 to the inner wall of 456. The water filtered by the main filter element 3 then flows through the secondary outlet 346 to the subsequent treatment process.

[0072] Similarly, when the internal water source is connected to the secondary filter element 3, its internal filtration process is the same as that of the main filter element 3, and will not be described.

[0073] It should be noted that: the initial position of the main filter element 3 is as follows: before operation, the position of the main filter element 3 remains unchanged, but the internal position of the secondary filter element 3 is different from that of the main filter element 3.

[0074] At this time, the upward moving head 332 is fully inserted into the inner wall of the limiting cap 331. The spring 333 inside the upward moving head 332, the push rod 34 connected to the bottom end of the spring 333, the filter plate 341 on the outer wall of the push rod 34, the upward moving silo 342 on the outer wall of the filter plate 341, the main water outlet 345 on the upward moving silo 342, the secondary drain outlet 35, the secondary water outlet 351, and the plug 352 move upward a distance that is consistent with the distance that the upward moving head 332 moves upward and is inserted into the inner wall of the limiting cap 331.

[0075] It should be noted that the positions of the internal parts of the secondary filter element 3 are only the initial positions and do not represent the operational status of the parts.

[0076] Switching between filtration and main / auxiliary filter elements 3: When the main filter element 3 is filtering, the impurities intercepted on its internal filter plate 341 completely block the surface of the filter plate 341, forming a seal. At this time, sewage cannot flow out of the filter normally. Subsequently, as sewage continues to accumulate on the upper part of the filter plate 341, when the sewage level rises to the level of the overflow pipe 322 on the inner wall of the filter chamber 31, the sewage is filtered through the filter ring plate 321. The filtered sewage flows through the filter ring plate 321 to the overflow pipe 322, and the filtered water flows through the overflow pipe 322 to the inner wall of the corresponding pressure tank 521. When the water level on the inner wall of the pressure tank 521 begins to rise, the float 522 inside it, due to buoyancy... As the float moves upward, the float 522 moves upward along the inner wall of the pressure tank 521, which in turn moves the connected rod 511 upward. The moving rod 511 moves upward, which in turn moves the connected cross plate 51 upward. The moving cross plate 51 moves upward, which in turn moves the top rod 34 on its top surface upward. The moving top rod 34 moves upward along the lower inner wall of the filter chamber 31. The moving top rod 34 moves upward, which in turn moves the filter plate 341 connected to its upper outer wall and the moving silo 342 upward. The moving silo 342 moves upward, which in turn moves the main outlet end 345 connected to it upward. The main outlet end 345 moves upward and is disconnected from the auxiliary outlet end 346. At this time, the water inside the moving silo 342 does not flow to the auxiliary outlet end 346 and is not discharged to the outside.

[0077] The top rod 34 drives the spring 333 on its top surface to move upward. The upward movement of the spring 333 drives the upper moving head 332 to move upward. When the upper moving head 332 is fully inserted into the inner wall of the limit cap 331, the filter plate 341 slides to the lower part of the limit cap 331 and forms a sealed space. At this time, the top rod 34 continues to move upward, driving the filter plate 341 to move upward. The spring 333 begins to compress. The upward movement of the filter plate 341 squeezes the impurities accumulated on its top with the bottom surface of the upper moving head 332. The squeezed water flows down along the filter plate 341, and the impurities form lumps. At this time, the water level on the inner wall of the pressure tank 521 does not drop and will continue to squeeze for a long time.

[0078] The switching action is performed simultaneously: when the moving silo 342 moves upward, the secondary drain outlet 35 opened on its side wall moves upward to the original position of the filter plate 341. At this time, the sewage flows along the inner wall of the secondary drain outlet 35 to the inner wall of the moving silo 342. At the same time, the upward movement of the moving silo 342 drives the plug head 352 to move upward. The upward-moving plug head 352 disengages from the upper part of the connected connecting pipe 4, opening the connecting channel between the connecting pipe 4 and the inner wall of the filter chamber 31. The secondary outlet 351 opens at the same time to connect the lower part of the moving silo 342 with the lower part of the filter chamber 31.

[0079] At this time, the water flows down the lower part of the filter chamber 31 into the connecting pipe 4. Because the connecting pipe 4 is connected to a downward one-way valve, the water flows down to the secondary filter element 3.

[0080] Perform normal filtration, interception, and drainage using the same auxiliary filter element 3 as above;

[0081] The impurities compressed on the inner wall of the main filter element 3 can then be cleaned.

[0082] The upward movement of the main filter element 3 drives the power element 5, and the power element 5 indirectly drives the parts connected to the secondary filter element 3 to move downward, resetting the position of the parts inside the secondary filter element 3 to be consistent with the initial position of the main filter element 3.

[0083] Switching between the main and auxiliary filter elements 3: After cleaning the main filter element 3, the sealing is completed. Then the auxiliary filter element 3 runs synchronously. When the auxiliary filter element 3 and the main filter element 3 form the same blockage scenario, its internal parts drive the power element 5 to move upward. The upward-moving power element 5 drives the power element 5 of the connected main filter element 3 to move downward, returning the internal parts of the main filter element 3 to their initial positions and forming a normal filtration flow direction.

[0084] Example 2, refer to Figure 7 and Figure 8 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a non-stop bit switching.

[0085] Specifically, the power component 5 has a circulation component 6 on its side wall. The circulation component 6 includes an extension rod 61 disposed on the side wall of the cross plate 51. The side wall of the extension rod 61 is provided with a toothed plate 62, and the side wall of the toothed plate 62 is provided with a gear 63.

[0086] Specifically, the side wall of the downstream section 33 is provided with a cleaning component 7, which includes a cleaning port 71 opened on the side wall of the filter chamber 31, and a sealing plate door 72 is provided inside the cleaning port 71.

[0087] Furthermore, an extension rod 61 is fixedly installed on the side wall and opposite side of each cross plate 51. Two extension rods 61 on the same side form a group. One side of each extension rod 61 is fixedly connected to a toothed plate 62. A gear 63 is provided between each group of extension rods 61. The gear 63 is rotatably connected to the inner wall of the fixed chamber 2. The outer wall of the gear 63 meshes with the toothed plate 62.

[0088] It should be noted that when the extension rod 61 on the same side moves up or down because of the corresponding cross plate 51 it is connected to, it will drive the meshing gear 63 to rotate. The rotating gear 63 will drive the other meshing toothed plate 62 to move up and down in the opposite direction, which is used to cooperate with the filtration station switching of the main filter element 3 and the auxiliary filter element 3 mentioned above.

[0089] It should be noted that when the work station is switched again, the water inside the corresponding pressure tank 521 will be reversed by the corresponding cross plate 51 and indirectly drive the float 522 to move down, pushing the water back into the filter chamber 31 along the overflow pipe 322.

[0090] The cleaning port 71 is opened on the side wall of the limit cap 331 and the filter chamber 31, and both are equipped with hinged sealing plate doors 72 for cleaning the impurities compressed on their inner walls, and after cleaning, it is convenient for sealing and maintenance operations.

[0091] In use: When the cross plate 51 connected to the extension rod 61 moves upward, it drives the toothed plate 62 connected to its side wall to move upward. The moving toothed plate 62 drives the gear 63 meshing with each other on its side wall to rotate. The rotating gear 63 drives the other toothed plate 62 it meshes with to move downward. The moving toothed plate 62 drives the corresponding cross plate 51 connected to it to move downward.

[0092] When cleaning filter element 3 is required: confirm that filter element 3 is not filtering water, then open the sealing plate door 72 and clean the impurities inside. After cleaning, close the sealing plate door 72 and close the cleaning port 71. Confirm that the seal is intact. Then, wait for the next time the main filter element 3 and the auxiliary filter element 3 switch operations to clean the non-working filter element 3.

[0093] Example 3, referring to Figures 1 to 8 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a method for using a segmented sewage treatment tower.

[0094] first step

[0095] Initially, the main filter element is in the filtration position: its push rod 34 is in the lower limit position under the action of spring 333, the filter plate 341 is in the low position, and the main water outlet 345 is aligned and connected with the auxiliary water outlet 346 on the side wall of the filter chamber 31; the plug 352 is inserted and seals the inlet of the connecting pipe 4 below. The auxiliary filter element is linked by the circulation element 6 and is in the preparation position: its push rod 34 is raised to the upper limit position, the upper moving head 332 is inserted into the limit cap 331, the filter plate 341 is in the high position, and a compression preparation space is formed with the lower part of the limit cap 331; its main water outlet 345 is offset from the auxiliary water outlet 346.

[0096] After initial filtration by filter tower 1, the wastewater flows into the filter chamber 31 of the main filter element and undergoes fine filtration through filter plate 341. The filtered clean water is discharged from the system through the main and auxiliary outlets 345 and the auxiliary outlet 346. At this time, the auxiliary filter element is idle and ready for use.

[0097] Step 2

[0098] As operating time increases, impurities accumulate on the surface of the filter plate 341 of the main filter element, causing its permeability to decrease and the water level in the filter chamber 31 to gradually rise. When the water level rises to the height of the overflow pipe 322 of the overflow section 32, the sewage begins to overflow through the filter ring plate 321 and is injected into the pressure tank 521 corresponding to the main filter element through the overflow pipe 322.

[0099] Step 3

[0100] The water level in pressure tank 521 rises, pushing float 522 to the surface. Float 522, through movable rod 52 and connecting rod 511, converts the upward buoyancy into a pulling force on cross plate 51. Cross plate 51 then drives the top rod 34 of the main filter element to move upward, overcoming the resistance of spring 333.

[0101] Actions triggered by upward movement

[0102] Water circuit switching: The upward silo 342 moves upward accordingly, causing the main water outlet 345 and the auxiliary water outlet 346 to be misaligned. At the same time, the secondary drain outlet 35 rises to the filtration working area, and the plug 352 is pulled out from the inlet of the connecting pipe 4.

[0103] Impurity pressing: The filter plate 341 continues to move upwards until its top surface contacts the lower part of the limiting cap 331, forming a closed compression chamber. Impurities accumulated on the filter plate 341 are forcefully squeezed in this chamber, water is squeezed out and flows down, and impurities are compacted into a blocky filter cake. The spring 333 is compressed and stores energy during this process.

[0104] Sub-component activation: Through the linkage of the circulation component 6, the upward movement of the cross plate 51 of the main filter element drives the gear 63 to rotate, thereby forcibly pulling the cross plate 51 of the sub-filter element downward. This resets all internal mechanisms of the sub-filter element to the same filtration position as the initial state of the main filter element.

[0105] Step 4

[0106] At this point, the wastewater from filter tower 1 is redirected to enter the upper silo 342 of the main filter element through the opened secondary drain port 35, and then through the secondary outlet 351 and the opened connecting pipe 4, it is introduced into the secondary filter element already in the filtration stage. The secondary filter element begins to undertake and perform fine filtration, and the effluent is discharged from its own secondary outlet 346. The system achieves uninterrupted switching of filtration functions.

[0107] Meanwhile, the main filter element is moved to the pressing and maintenance station, where the filter cake inside is continuously and stably pressed, and preparations are made for cleaning.

[0108] Step 5

[0109] When cleaning is required, staff can open the cleaning port 71 and sealing plate door 72 of the main filter element, remove the filter cake that has been compressed into blocks, and then close the plate door 72.

[0110] When the secondary filter also becomes clogged after running for a period of time, the process described in stages two through four will be completely repeated. The difference is that the trigger signal originates from the secondary filter, causing its power component 5 to move upwards. Through the linkage of the circulation component 6, this drives the power component 5 of the main filter to move downwards. This causes the main filter, after cleaning, to release its stored energy in spring 333, pushing the mechanism to reset and return to the filtration station. Meanwhile, the secondary filter moves upwards to the pressing and maintenance station. This cycle repeats continuously, achieving permanent alternating operation of the two stations and uninterrupted operation throughout its entire lifecycle.

[0111] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A segmented sewage treatment tower characterized in that: Including the filter tower (1); and, The filter element (3) is located at the bottom of the filter tower (1), and the power element (5) is located at the bottom of the filter element (3); wherein, The filter element (3) includes two filter chambers (31) located at the bottom of the filter tower (1). The bottom of the filter tower (1) is provided with a connecting end (13) for connecting to the filter element (3). The filter element (3) is divided into a main filter element and a secondary filter element. The main filter element is located at the bottom of the filter tower (1) and is connected to the lower inner wall of the filter tower (1) through the filter chamber (31) at its top. The secondary filter element is located directly below the main filter element. The filter chamber (31) of the secondary filter element is in a closed state. Each filter chamber (31) is provided with an overflow section (32) at its bottom. The overflow section (32) is provided with a downstream section (33) at its bottom. The downstream section (33) is provided with a top rod (34) at its bottom. The top rod (34) is provided with a secondary drain outlet (35) at its bottom. The upper part of the filter chamber (31) is provided with a connecting part (311) communicating with the connecting end (13). The interior of the overflow part (32) is provided with a filter ring plate (321). The lower part of the connecting part (311) is provided with an overflow pipe (322). The diameter of the overflow part (32) is larger than the diameter of the filter chamber (31). Each overflow part (32) has a filter ring plate (321) fixedly connected to its inner wall. The outer wall of the overflow part (32) has four overflow pipes (322) arranged in a ring. The upper end of the overflow pipe (322) is connected to the overflow part (32). The lower end of the overflow pipe (322) is connected to the lower inner wall of the pressure tank (521). A limit cap (331) is provided in the middle of the downstream section (33), and an upper moving head (332) is provided at the lower part of the limit cap (331). A spring (333) is provided inside the upper moving head (332). The top end of the spring (333) is fixedly connected to the top surface of the inner wall of the upper moving head (332), and the bottom end of the spring (333) is fixedly connected to the top end of the push rod (34). The top end of the push rod (34) is inserted into the lower part of the inner wall of the upper moving head (332). A filter plate (341) is provided on the outer wall of the top rod (34), and an upward moving silo (342) is provided on the outer wall of the filter plate (341). A main water outlet (345) is provided at the lower part of the filter plate (341), and a secondary water outlet (346) connected to the filter chamber (31) is provided at the end of the main water outlet (345). The filter plate (341) is located at the lower part of the upward moving head (332) and is fixed to the outer wall of the top rod (34). The outer wall of each filter plate (341) is fixedly connected to the inner wall of an upward silo (342). The main water outlet (345) is opened on the side wall of the upward silo (342) and close to the bottom surface of the filter plate (341). The auxiliary water outlet (346) is opened on the outer wall of the filter chamber (31) and is connected to the main water outlet (345). The main water outlet (345) and the auxiliary water outlet (346) have the same diameter. The power component (5) includes a cross plate (51) disposed at the lower part of the top rod (34). The bottom surface of each top rod (34) is fixedly connected to the top surface of the middle part of a cross plate (51). A connecting rod (511) is provided on the side wall of the cross plate (51). One side and the opposite side of each cross plate (51) are fixedly connected to a connecting rod (511). A movable rod (52) is provided at the end of the connecting rod (511). The bottom outer wall of each movable rod (52) is fixedly connected to the middle part of a float (522). A pressure tank (521) is provided on the outer wall of each float (522). The movable rod (52) is movably inserted into the inner wall of the pressure tank (521). The power component (5) has a circulation component (6) on its side wall. The circulation component (6) includes an extension rod (61) on the side wall of the cross plate (51). The side wall of the extension rod (61) is provided with a toothed plate (62). The side wall of the toothed plate (62) is provided with a gear (63). The gear (63) is rotatably connected to the inner wall of the fixed chamber (2). The outer wall of the gear (63) meshes with the toothed plate (62).

2. The segmented sewage treatment tower according to claim 1, characterized in that: The filter tower (1) is provided with a sewage end (11) at the top, and multiple media layers (12) for placing filter media are provided inside the filter tower (1). The filter tower (1) is provided with a fixed chamber (2) at the bottom.

3. The segmented sewage treatment tower according to claim 1, characterized in that: The secondary drain outlet (35) is provided with a secondary outlet (351) at its lower part, and a plug (352) is provided at the lower part of the secondary outlet (351), and a connecting pipe (4) is provided at the lower part of the plug (352).

4. The segmented wastewater treatment tower according to claim 3, characterized in that: A one-way valve (41) is provided in the middle of the connecting pipe (4).

5. The segmented wastewater treatment tower according to claim 4, characterized in that: The side wall of the downstream section (33) is provided with a cleaning component (7), the cleaning component (7) includes a cleaning port (71) opened on the side wall of the filter chamber (31), and a sealing plate door (72) is provided inside the cleaning port (71).

6. A method of use, characterized in that: The system includes the segmented wastewater treatment tower as described in claim 5, and the following steps: S1: The main filter and the auxiliary filter are set in the initial position, with the main filter in the filtration position, its filter plate (341) in the low position, the main outlet (345) and the auxiliary outlet (346) connected, and the plug (352) sealing its corresponding connecting pipe (4); the auxiliary filter is in the squeezed state, its upper moving head (332) is inserted into the limiting cap (331), the filter plate (341) is in the high position and forms a squeezed space with the lower part of the limiting cap (331); the sewage to be treated is introduced into the filter tower (1), and after being filtered by multiple media, it enters the main filter in the filtration position; the sewage flows through the filter chamber (31), overflow part (32) and co-current part (33) of the main filter in sequence, and is intercepted and filtered by the filter plate (341), and the filtered clean water is discharged through the main outlet (345) and the auxiliary outlet (346); S2: When impurities accumulate on the surface of the filter plate (341) of the main filter element to the point of blockage, the water level above it rises; the water level rises to the height of the overflow pipe (322) of the overflow section (32), and some water flows through the filter ring plate (321) into the overflow pipe (322) and into the corresponding pressure tank (521). The water level in the pressure tank (521) rises, driving the float (522) to float upwards, which in turn drives the cross plate (51) and the top rod (34) to move upwards through the movable rod (52) and the connecting rod (511); The upward movement of the push rod (34) causes the filter plate (341) of the main filter element and the upward-moving silo (342) to move upward as a whole, thereby achieving: A: The main water outlet (345) is moved upward and offset from the auxiliary water outlet (346) to cut off the main filter water outlet passage; B: The secondary drain outlet (35) is moved to the original position of the filter plate (341) and becomes the new water inlet; C: The plug (352) moves upward, opening the inlet of the corresponding connecting pipe (4); S3: Wastewater from the main filter enters the upward silo (342) through the secondary drain (35) and is guided downward to the auxiliary filter through the open connecting pipe (4) and one-way valve (41); Meanwhile, the continuously moving filter plate (341) squeezes and dehydrates the impurities accumulated on its top in the sealed space formed under the limiting cap (331) to form a block filter cake. Under the linkage of the circulation component (6), the cross plate (51) of the main filter element moves upward. Through the meshing of the toothed plate (62) and the gear (63), the cross plate (51) of the secondary filter element is driven to move in the opposite direction, so that the secondary filter element is reset from the preparatory position to the filtration position and begins to receive and process the sewage from the main filter element. S4: For the main filter element that has completed impurity pressing and is in the squeezing state, open the sealing plate door (72) of its cleaning port (71), remove the block filter cake and close the seal. When the filter plate (341) of the secondary filter element is blocked, repeat steps B and C. At this time, the power transmission direction is opposite, the secondary filter element moves up and enters the squeezing state, and at the same time the main filter element moves down and resets to the filtration station, thereby realizing the cyclic switching of the working state of the main and secondary filter elements and the uninterrupted continuous treatment of sewage.

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