A nitrifying-denitrifying filter and method of use thereof

Abstract

The application discloses a kind of for nitrification denitrification filter tank and its use method, it is related to detection equipment technical field, including shell mechanism, the top of the shell mechanism is provided with wastewater pool mechanism, the top of the shell mechanism is provided with filter mechanism, the top of the shell mechanism is provided with nitrification mechanism, the top of the shell mechanism is provided with gasification mechanism, the top of the shell mechanism is fixedly installed with pedal mechanism, the shell mechanism includes shell body, the back of the shell body is fixedly installed with side plate, the significant improvement of water treatment efficiency is carried out, the series layout of multistage processing unit forms synergistic effect, can be completed simultaneously solid-liquid separation, pollutant degradation and gas mass transfer process, effectively shorten processing cycle and improve denitrification efficiency, modular assembly is convenient for quick disassembly maintenance, reduce equipment downtime, pedal mechanism adopts folding plate and hinge linkage design, combined with clamping rod positioning protection, both guarantee operation stability and improve personnel operation safety.

Description

Technical Field

[0001] This invention relates to the field of detection equipment technology, specifically to a nitrification-denitrification filter and its usage method. Background Technology

[0002] In recent years, researchers both domestically and internationally have conducted extensive studies on how to address the issues of substandard effluent quality and total nitrogen removal from denitrifying biological filters. Many studies have shown that the types and proportions of denitrifying bacteria, the carbon-to-nitrogen ratio, hydraulic loading, and hydraulic retention time directly affect the denitrification efficiency of the system. However, currently, a significant number of wastewater treatment plants in my country have low influent C / N ratios, and the denitrification process is often limited by insufficient carbon sources. Some denitrifying biological filters suffer from low denitrification efficiency and high costs for chemicals and construction, making it difficult to achieve standard discharge for wastewater. Therefore, strengthening the removal of total nitrogen from wastewater is of great significance for ensuring the overall effluent quality of denitrifying filters meets standards.

[0003] As the name suggests, a denitrifying filter is a biological filter with denitrification function, developed from traditional biological filters. It is advantageous due to its good nitrate removal efficiency, small footprint, high treatment efficiency, and low investment cost. The denitrification reaction in the denitrification filter process is mostly a redox process in which heterotrophic denitrifying bacteria use organic carbon sources (common carbon sources such as methanol, acetic acid, and ethanol) as electron donors and nitrates or nitrites as electron acceptors.

[0004] However, existing filters used for nitrification and denitrification have the following shortcomings:

[0005] 1) Traditional nitrification and denitrification devices generally adopt independent tanks and dispersed layout, which has problems such as fragmented treatment process and large material transmission loss, resulting in limited overall treatment efficiency. The equipment is mostly fixed structure, and the replacement of internal components (such as packing layer and aeration device) requires large-scale disassembly, which is costly and time-consuming. The single-function tank design makes it difficult to achieve efficient coupling of multi-phase reactions, and short-circuiting or dead zone phenomena are prone to occur, affecting the pollutant removal rate. The operating platform lacks anti-slip and protective design, which poses a risk of personnel slipping in humid environments.

[0006] 2) Traditional nitrification and denitrification filters mostly adopt rigid fixed structures. The positioning and adjustment of internal components require disassembly with tools, resulting in long maintenance cycles and high operational complexity. Long-term operation is prone to component loosening or accelerated wear due to vibration, leading to insufficient overall system coordination and affecting treatment efficiency and stability.

[0007] 3) The drainage system of traditional nitrification and denitrification filters mostly adopts a static sealing structure. Long-term immersion can easily lead to aging and failure of the sealing material, causing leakage pollution, interrupting the treatment process, and resulting in high labor intensity and environmental safety hazards.

[0008] Therefore, we propose a method for using nitrification-denitrification filters to address the problems mentioned above. Summary of the Invention

[0009] The purpose of this invention is to provide a method for using a nitrification-denitrification filter, which significantly improves water treatment efficiency. The series layout of multi-stage treatment units creates a synergistic effect, enabling simultaneous solid-liquid separation, pollutant degradation, and gas mass transfer processes. This effectively shortens the treatment cycle and improves denitrification efficiency. The modular components facilitate quick disassembly and maintenance, reducing equipment downtime. The pedal mechanism adopts a folding plate and hinge linkage design, combined with a locking rod for positioning and protection, ensuring both operational stability and personnel safety.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a nitrification-denitrification filter, comprising a shell mechanism, a wastewater tank mechanism at the top of the shell mechanism, a filtration mechanism at the top of the shell mechanism, a nitrification mechanism at the top of the shell mechanism, a gasification mechanism at the top of the shell mechanism, and a pedal mechanism fixedly installed at the top of the shell mechanism.

[0011] The outer casing mechanism includes an outer casing body, a side plate is fixedly installed on the back of the outer casing body, and a side cover is provided on the top of the side plate;

[0012] The pedal mechanism includes a convex plate, a sleeve plate is provided at the top of the convex plate, a side block A and a side block B are provided on the side of the sleeve plate, a locking rod is provided inside the side block B, a pedal body is provided at the top of the sleeve plate, and a folding plate is provided at the top of the pedal body.

[0013] Preferably, the top of the side plate is provided with a mounting groove, and the bottom of the side cover is fixedly installed with a mounting plate. The mounting plate is slidably connected to the side plate through the mounting groove, and the side cover is slidably connected to the outer shell body.

[0014] Preferably, the wastewater tank mechanism includes a wastewater tank body, a water pump A fixedly installed at the top of the side plate, the water pump A being fixed to the top of the side plate by a mounting block A, a water pipe A and a water pipe B installed on the side of the water pump A, the water pipe A being fixed to the inner wall of the wastewater tank body by a fixing groove A, a collection box installed on the surface of the water pipe A, a water inlet opened on the surface of the collection box, the water pipe B being fixed to the inner wall of the filter tank by a fixing groove B, and a water outlet opened inside the water pipe B, the filtration mechanism includes a filter tank, a water pump B fixedly installed at the top of the side plate, the water pump B being fixed to the top of the side plate by a mounting block B, a delivery pipe A and a delivery pipe B installed on the side of the water pump B, the delivery pipe A being fixed to the inner wall of the filter tank by a fixing groove C, an inlet opened inside the delivery pipe A, the delivery pipe B passing through the filter tank by a fixing groove D and fixed to the inner wall of the nitrification tank by a fixing groove E, an outlet opened inside the delivery pipe B, and a filter screen is provided inside the filter tank.

[0015] Preferably, the nitrification mechanism includes a nitrification tank, an internal limiting plate with a limiting groove in the middle, a fixing plate in the middle of the limiting plate, and a slidable connection between the fixing plate and the limiting plate via the limiting groove. The fixing plates are evenly distributed inside the nitrification tank, and a nitrification filter element is fixedly installed in the middle of the fixing plate. A through groove is opened on the right side of the nitrification tank. The gasification mechanism includes a gasification tank, an air pump is fixedly installed at the top of the side plate, a conduit A and an air tank are installed on the left side of the air pump, a conduit B is installed on the surface of the air pump, and the conduit B is installed at the bottom of the gasification tank via the fixing groove F. An air outlet is opened at the top of the conduit B.

[0016] Preferably, the convex plates are symmetrically distributed at the top left and right ends of the outer shell body. The sleeve plate is slidably connected to the convex plates through a sliding groove. The locking rod is connected to the side block A through a locking groove A. The locking rod is slidably connected to the side block B through a locking groove B. The locking rod is slidably connected to the convex plates through a positioning groove. A soft pad is fixedly installed on the surface of the locking rod. A sleeve cover is fixedly installed on the right side of the locking rod. A washer is fixedly installed on the surface of the sleeve cover. The folding plate is rotatably connected to the pedal body through a hinge. The folding plates are symmetrically distributed at the top left and right ends of the pedal body. The hinges are evenly distributed on the top left and right sides of the pedal body. A pinching groove is formed on the surface of the folding plate.

[0017] Preferably, a boss is fixedly installed inside the filtration mechanism, a fixing ring is provided at the top of the boss, a connecting rod is fixedly installed at the top of the fixing ring, a handle is fixedly installed at the top of the connecting rod, a gasket is fixedly installed on the surface of the nitration mechanism, a groove is opened at the top of the nitration mechanism, and a hanging rod is fixedly installed inside the groove.

[0018] Preferably, the fixing ring is slidably connected to the boss, the fixing ring is slidably connected to the filter tank, the connecting rods are symmetrically distributed on the left and right sides of the bottom end of the handle, the handles are symmetrically distributed on the front and rear sides of the top end of the fixing ring, the pads are evenly distributed on the front and rear ends of the fixing plate, the pads are slidably connected to the nitrification tank, and the grooves are symmetrically distributed on the front and rear ends of the top end of the fixing plate.

[0019] Preferably, a drain pipe is fixedly installed on the right side of the outer casing, the drain pipe has a drain outlet inside, a sealing groove is provided at the top of the drain pipe, a sealing plate is provided inside the sealing groove, and a top plate is fixedly installed at the top of the sealing plate.

[0020] Preferably, the sealing plate is slidably connected to the drain pipe via a sealing groove, and the top plate is slidably connected to the drain pipe.

[0021] A method of using a nitrification-denitrification filter includes the following steps:

[0022] Step 1: First, place the outer casing in the desired position. Install the filter screen in the filtration tank and the nitrification filter element in the nitrification tank. Pinch the side cover and pull it upwards to allow the mounting plate to slide up along the mounting groove inside the side plate until it is completely removed. Then, fix water pump A to the top of the side plate via mounting block A. Fix water pipe A and water pipe B to the inner wall of the wastewater tank and filtration tank respectively via fixing groove A and fixing groove B. Then fix water pump B. Connect the filtration tank and nitrification tank to delivery pipe A and delivery pipe B in sequence via fixing groove C, fixing groove D, and fixing groove E. Install the air pump at the top of the side plate. The conduit B enters the gasification tank via fixing groove F. Finally, after adjusting water pump A, water pump B, and air pump to meet the standards, align the mounting plate at the bottom of the side cover with the mounting groove and press it down to reset.

[0023] Step 2: Pour the wastewater to be treated into the wastewater tank. After filling, start water pump A. The wastewater enters the collection box through the suction port, and then flows into the filtration mechanism through water pipes A and B. It undergoes preliminary filtration through the filter screen. Then, start water pump B to introduce the filtered wastewater into the nitrification mechanism through conveying pipes A and B. It undergoes secondary filtration using the nitrification filter element. The treated wastewater flows into the gasification mechanism through the channel and finally enters the gasification tank. At this time, start the gas pump and introduce the treatment gas from the gas tank into the conduit B through conduit A. Gas is injected into the wastewater for gasification treatment. After the treatment is completed, lift the top plate to make the sealing plate slide up the sealing groove and detach from the drain pipe. The water in the gasification tank can then be discharged through the drain outlet and drain pipe.

[0024] Step 3: When cleaning is required after long-term use, first assemble the pedal mechanism, lift the pedal body, align the sleeve plate with the convex plate and push it to slide it completely into the groove. Then pinch the cover, align the locking rod with the slot B and push it inward. Use the washer to prevent slippage. Push the locking rod with the soft pad through the slot B into the side block B, pass through the positioning groove and then be fixed to the side block A through the slot A. At this time, the cover covers the side block B, and the soft pad holds the convex plate to fix the sleeve plate. Then pinch the groove and pull the folding plate upward to make it rotate around the hinge at the top of the pedal and unfold. After completion, the staff can use the pedal to clean the inside of the wastewater tank, filter tank, nitrification tank and gasification tank.

[0025] Step 4: When maintenance is required after long-term use, first pull the side cover upwards to allow the mounting plate to slide out of the side plate along the mounting groove. Then, water pump A, water pump B, air pump and air tank can be inspected. If the filter screen needs maintenance, hold the handle and lift it up. The connecting rod will drive the fixing ring and filter screen to slide up. After the bottom end of the fixing ring disengages from the boss and slides completely out of the filter tank, the operation can be carried out. When maintaining the nitrification filter element, use the lifting tool hook rod to pull it upwards. The fixing plate moves upwards along the limiting groove. After it drives the filter element and the gasket to completely disengage from the nitrification tank, the associated maintenance work can be carried out.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. This invention, through the use of a convex plate, positioning groove, sleeve plate, sliding groove, side block A, slot A, side block B, slot B, locking rod, soft pad, cover, washer, pedal body, hinge, folding plate, and pinch groove, achieves a significant improvement in water treatment efficiency. The series layout of multi-stage treatment units forms a synergistic effect, which can simultaneously complete solid-liquid separation, pollutant degradation, and gas mass transfer processes, effectively shortening the treatment cycle and improving denitrification efficiency. The modular components facilitate quick disassembly and maintenance, reducing equipment downtime. The pedal mechanism adopts a linkage design of folding plate and hinge, combined with locking rod positioning protection, which not only ensures operational stability but also improves personnel safety.

[0028] 2. The device of this invention, with its boss, fixing ring, connecting rod, handle, retaining pad, groove, and hanging rod, enables flexible positioning and convenient assembly and disassembly of the internal components of the filtration mechanism, significantly improving equipment maintenance efficiency. The coordinated design of the connecting rod and handle optimizes the distribution of operating forces and reduces the intensity of manual operation. The combined application of the retaining pad and the hanging rod in the groove enhances the structural stability of the nitration mechanism and improves system adaptability and processing accuracy.

[0029] 3. The device of this invention, including the drain pipe, drain outlet, sealing groove, sealing plate and top plate, effectively prevents sewage overflow. The sliding cooperation between the sealing plate and the sealing groove enables precise opening and closing control of the drain outlet, taking into account both ease of operation and sealing reliability. Dredging or maintenance work can be completed without disassembling the main structure, improving the environmental adaptability of the equipment during operation. Attached Figure Description

[0030] Figure 1 This is a perspective view of the main structure of a nitrification-denitrification filter and its usage method according to the present invention.

[0031] Figure 2 This is an exploded front perspective view of the shell mechanism, wastewater tank mechanism, filtration mechanism, nitrification mechanism, and gasification mechanism in a nitrification-denitrification filter and its usage method according to the present invention.

[0032] Figure 3 This invention relates to a nitrification-denitrification filter and its method of use. Figure 2 Enlarged 3D view of the structure at point A in the middle;

[0033] Figure 4 This invention relates to a nitrification-denitrification filter and its method of use. Figure 2 Enlarged 3D view of the structure at point B in the middle;

[0034] Figure 5 This is an exploded perspective view of the wastewater tank structure, filtration mechanism, and gasification mechanism components in a nitrification-denitrification filter and its usage method according to the present invention.

[0035] Figure 6 This is an exploded perspective view of a filter screen component in a nitrification-denitrification filter and its usage method according to the present invention.

[0036] Figure 7 This is an exploded perspective view of a nitrification filter element component in a nitrification-denitrification filter and its application method according to the present invention.

[0037] Figure 8 This is an exploded front perspective view of a pedal mechanism in a nitrification-denitrification filter and its usage method according to the present invention.

[0038] Figure 9 This invention relates to a nitrification-denitrification filter and its method of use. Figure 8 Enlarged 3D view of the structure at point C.

[0039] In the diagram: 1. Outer shell mechanism; 101. Outer shell body; 102. Side plate; 103. Mounting groove; 104. Mounting plate; 105. Side cover; 2. Wastewater tank mechanism; 201. Wastewater tank body; 202. Fixing groove A; 203. Water pump A; 204. Mounting block A; 205. Water pipe A; 206. Collection box; 207. Inlet; 208. Water pipe B; 209. Outlet; 210. Fixing groove B; 3. Filtration Mechanism; 301. Filtration Tank; 302. Fixing Tank C; 303. Fixing Tank D; 304. Water Pump B; 305. Mounting Block B; 306. Delivery Pipe A; 307. Inlet; 308. Delivery Pipe B; 309. Outlet; 310. Fixing Tank E; 311. Filter Screen; 4. Nitrification Mechanism; 401. Nitrification Tank; 402. Limiting Plate; 403. Limiting Tank; 404. Fixing Plate ; 405, Nitrification filter element; 406, Through groove; 5, Gasification mechanism; 501, Gasification tank; 502, Fixing groove F; 503, Air pump; 504, Conduit A; 505, Air tank; 506, Conduit B; 507, Air outlet; 6, Pedal mechanism; 601, Protruding plate; 602, Positioning groove; 603, Sleeve plate; 604, Slide groove; 605, Side block A; 606, Slot A; 607, Side block B; 6 08. Slot B; 609. Locking rod; 610. Soft pad; 611. Cover; 612. Washer; 613. Pedal body; 614. Hinge; 615. Folding plate; 616. Pinch groove; 7. Boss; 8. Fixing ring; 9. Connecting rod; 10. Grip; 11. Locking pad; 12. Groove; 13. Hanging rod; 14. Drain pipe; 15. Drain outlet; 16. Sealing groove; 17. Sealing plate; 18. Top plate. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see the appendix Figure 1 -Appendix Figure 9 As shown, the present invention provides a technical solution: a nitrification-denitrification filter, including a shell mechanism 1, a wastewater tank mechanism 2 at the top of the shell mechanism 1, a filtration mechanism 3 at the top of the shell mechanism 1, a nitrification mechanism 4 at the top of the shell mechanism 1, a gasification mechanism 5 at the top of the shell mechanism 1, and a pedal mechanism 6 fixedly installed at the top of the shell mechanism 1.

[0042] Example 1, according to Figure 1 , Figure 2 , Figures 4-9As shown, the outer casing mechanism 1 includes an outer casing body 101, a side plate 102 fixedly mounted on the back of the outer casing body 101, and a side cover 105 provided at the top of the side plate 102. The pedal mechanism 6 includes a protruding plate 601, a sleeve plate 603 provided at the top of the protruding plate 601, side blocks A 605 and B 607 provided on the side of the sleeve plate 603, a locking rod 609 provided inside the side block B 607, a pedal body 613 provided at the top of the sleeve plate 603, a folding plate 615 provided at the top of the pedal body 613, a mounting groove 103 provided at the top of the side plate 102, and a mounting plate 104 fixedly mounted at the bottom of the side cover 105. The mounting plate 104 is slidably connected to the side plate 102 through the mounting groove 103. The side cover 105 and the outer casing body 101 are connected by a mounting groove 103. The wastewater tank mechanism 2 includes a wastewater tank body 201, a water pump A203 fixedly installed at the top of the side plate 102, the water pump A203 being fixed to the top of the side plate 102 by a mounting block A204, a water pipe A205 and a water pipe B208 installed on the side of the water pump A203, the water pipe A205 being fixed to the inner wall of the wastewater tank body 201 by a fixing groove A202, a collection box 206 being installed on the surface of the water pipe A205, a water suction port 207 being opened on the surface of the collection box 206, and a water pipe B208 being fixed to the inner wall of the filter tank 301 by a fixing groove B210, a water outlet 209 being opened inside the water pipe B208. The filter mechanism 3 includes a filter tank 301, a water pump B304 fixedly installed at the top of the side plate 102, and the water pump... Pump B304 is fixed to the top of side plate 102 by mounting block B305. Pump B304 has a conveying pipe A306 and a conveying pipe B308 installed on its side. Conveying pipe A306 is fixed to the inner wall of filter tank 301 via fixing groove C302. Conveying pipe A306 has an inlet 307 inside. Conveying pipe B308 passes through filter tank 301 via fixing groove D303 and is fixed to the inner wall of nitrification tank 401 via fixing groove E310. Conveying pipe B308 has an outlet 309 inside. Filter tank 301 has a filter screen 311 inside. Nitrification mechanism 4 includes nitrification tank 401. Nitrification tank 401 has a limiting plate 402 inside. The limiting plate 402 has a limiting groove 403 in the middle. A fixing plate 404 is provided, which is slidably connected to a limiting plate 402 via a limiting groove 403. The fixing plates 404 are evenly distributed inside the nitrification tank 401. A nitrification filter element 405 is fixedly installed in the middle of the fixing plate 404. A through groove 406 is opened on the right side of the nitrification tank 401. The gasification mechanism 5 includes a gasification tank 501. An air pump 503 is fixedly installed at the top of the side plate 102. A conduit A504 and an air tank 505 are installed on the left side of the air pump 503. A conduit B506 is installed on the surface of the air pump 503. The conduit B506 is installed at the bottom of the gasification tank 501 through a fixing groove F502. An air outlet 507 is opened at the top of the conduit B506. Protruding plates 601 are symmetrically distributed on the left and right ends of the top of the outer shell body 101.The sleeve plate 603 is slidably connected to the protruding plate 601 via the sliding groove 604. The locking rod 609 is connected to the side block A605 via the locking groove A606, and slidably connected to the side block B607 via the locking groove B608. The locking rod 609 is slidably connected to the protruding plate 601 via the positioning groove 602. A soft pad 610 is fixedly installed on the surface of the locking rod 609. A sleeve cover 611 is fixedly installed on the right side of the locking rod 609. A washer 612 is fixedly installed on the surface of the sleeve cover 611. The folding plate 615 is rotatably connected to the pedal body 613 via the hinge 614. The folding plates 615 are symmetrically distributed on the left and right ends of the top of the pedal body 613. The hinges 614 are evenly distributed on the left and right ends of the top of the pedal body 613. The surface of the folding plate 615 has a pinch groove 616.

[0043] The overall effect of Embodiment 1 is as follows: the sliding side cover 105 cooperates with the outer shell body 101, combined with the double-safety locking mechanism of the lever 609-side block and the protection of the soft pad 610, which greatly improves the convenience of opening and closing and the structural stability of the equipment. The folding plate 615 is set with a linkage mechanism with the pedal body 613, and the hinge 614 is used to realize bidirectional expansion. With the surface pinch groove design 616, both operational safety and space utilization are guaranteed. The multi-stage water treatment system, through the wastewater tank-filtration tank 301-nitrification tank 401-gasification tank 501 driven by water pump A203 / B, forms a high-efficiency circulating purification system with the help of filter screen 311, nitrification filter element 405 and air pump 503 oxygenation device. Each functional module adopts a standardized installation structure (such as mounting block, fixing groove), which makes the equipment have the characteristics of quick disassembly and easy maintenance. At the same time, the collection box 206, sealed delivery pipe and other detailed designs effectively prevent secondary pollution, realizing the miniaturization, intelligence and high efficiency upgrade of sewage treatment equipment.

[0044] Example 2, according to Figure 1 , Figure 2 , Figure 6 , Figure 7 As shown, a boss 7 is fixedly installed inside the filter mechanism 3. A fixing ring 8 is provided at the top of the boss 7. A connecting rod 9 is fixedly installed at the top of the fixing ring 8. A handle 10 is fixedly installed at the top of the connecting rod 9. A pad 11 is fixedly installed on the surface of the nitration mechanism 4. A groove 12 is opened at the top of the nitration mechanism 4. A hanging rod 13 is fixedly installed inside the groove 12. The fixing ring 8 is slidably connected to the boss 7. The fixing ring 8 is slidably connected to the filter tank 301. The connecting rod 9 is symmetrically distributed on the left and right sides of the bottom end of the handle 10. The handle 10 is symmetrically distributed on the front and rear sides of the top end of the fixing ring 8. The pad 11 is evenly distributed at the front and rear ends of the fixing plate 404. The pad 11 is slidably connected to the nitration tank 401. The groove 12 is symmetrically distributed at the front and rear ends of the top end of the fixing plate 404.

[0045] The overall effect of Embodiment 2 is as follows: A sliding boss 7-fixed ring 8 combination is added to the filtration mechanism 3, which, together with the symmetrically distributed connecting rods 9 and handles 10, forms a convenient and labor-saving control system, significantly improving the efficiency of equipment maintenance and debugging. The nitrification mechanism 4 adopts a three-in-one design of pad 11-groove 12-hanging rod 13. The sliding pad 11 adapts to different working conditions, and the hanging rod 13 in the groove 12 strengthens the load-bearing capacity, effectively solving the technical pain point of easy displacement of traditional nitrification devices. All components adopt a sliding connection method, which not only ensures structural stability but also facilitates quick disassembly and assembly. With the standardized distribution layout, the equipment has both high reliability and convenient maintenance. The overall design focuses on human-machine interaction optimization. The position of the handle 10 conforms to ergonomics, and the anti-slip design of the pad 11 improves the safety of operation, realizing the iterative upgrade of sewage treatment equipment from functional to intelligent and user-friendly.

[0046] Example 3, according to Figures 1-3 As shown, a drain pipe 14 is fixedly installed on the right side of the outer casing 101. A drain outlet 15 is provided inside the drain pipe 14. A sealing groove 16 is provided at the top of the drain pipe 14. A sealing plate 17 is provided inside the sealing groove 16. A top plate 18 is fixedly installed at the top of the sealing plate 17. The sealing plate 17 is slidably connected to the drain pipe 14 through the sealing groove 16. The top plate 18 is slidably connected to the drain pipe 14.

[0047] The overall effect of embodiment 3 is as follows: the sliding sealing plate 17 and the sealing groove 16 are precisely matched to achieve dynamic sealing of the drain outlet 15, effectively preventing sewage leakage and odor emission. The double sliding connection design of the top plate 18 and the drain pipe 14 not only ensures the stability of the seal but also facilitates quick disassembly and maintenance. The integrated layout of the drain outlet 15 and the sealing structure significantly improves drainage efficiency and reduces the risk of blockage. The modular assembly method of the whole makes it possible to maintain the drain pipe 14 without disassembling the main equipment, which greatly shortens the operation and maintenance time. Compared with the traditional fixed drain pipe 14, this design has achieved significant improvements in sealing performance, ease of operation and maintenance efficiency.

[0048] The working principle of the entire equipment is as follows: In the preparation stage, before use, place the outer casing 1 in the required position, install the filter screen 311 inside the filter tank 301, and install the nitrification filter element 405 inside the nitrification tank 401. Then, pinch the side cover 105 and pull it upwards, causing the mounting plate 104 to slide upwards through the mounting groove 103 inside the side plate 102, and the side cover 105 to slide upwards on the back of the outer casing 101. Once the mounting plate 104 has completely slid out of the side plate 102 through the mounting groove 103, the water pump A203 is fixed to the top of the side plate 102 via the mounting block A204, and the water pipe A205 is fixed to the inner wall of the wastewater tank via the fixing groove A202. The water pipe B208 is fixed to the inner wall of the filter tank 301 via the fixing groove B210. Finally, the water pump B304 is fixed to the inner wall of the filter tank via the mounting block B3. 05 Securely fix the conveying pipe A306 to the inside of the filter tank 301 through the fixing groove C302. Then, pass the conveying pipe B308 through the fixing groove D303 through the filter tank 301 and fix it to the inner wall of the nitrification tank 401 through the fixing groove E310. Finally, fix the air pump 503 to the top of the side plate 102 and complete the cylinder installation. Fix the conduit B506 to the inside of the gasification tank 501 through the fixing groove F502. After all installations are completed, the water pump A203, water pump B304, and air pump 503 can be adjusted. When they are adjusted to meet the usage requirements, the mounting plate 104 at the bottom of the side cover 105 is aligned with the mounting groove 103 and pressed down so that the mounting plate 104 slides into the inside of the side plate 102 through the mounting groove 103. After the side cover 105 is installed back on the back of the outer shell 101, it is complete.

[0049] During the usage phase, wastewater requiring treatment is poured into the wastewater tank mechanism 2. Once the tank is full, water pump A203 is activated, allowing the wastewater to flow through suction port 207 into collection box 206, then through water pipe A205 into water pipe B208, and finally through outlet 209 into filter mechanism 3. The wastewater then undergoes preliminary filtration through filter screen 311 inside filter tank 301. After filtration, water pump B304 is activated, allowing the filtered wastewater to flow through delivery pipe A306 and inlet 307 into delivery pipe B308, and then through outlet 309 into nitrification mechanism 4, and finally into nitrification tank 401. The nitrification filter element 405 performs secondary filtration. After the wastewater is nitrified, it flows into the gasification mechanism 5 through the channel 406 and falls into the gasification tank 501. Finally, the air pump 503 is started, which pours the treatment gas in the air tank 505 into the channel B506 through the conduit A504 and pumps it into the wastewater through the air outlet 507 to achieve the effect of gasification treatment. After the wastewater is completely treated, the top plate 18 can be pinched and pulled upwards, so that the sealing plate 17 slides upwards through the sealing groove 16 inside the drain pipe 14. When the sealing plate 17 slides completely out of the drain pipe 14 through the sealing groove 16, the water in the gasification tank 501 can be discharged through the drain outlet 15 and the drain pipe 14.

[0050] During the cleaning phase, when cleaning is required after prolonged use, the pedal mechanism 6 needs to be reassembled. During assembly, first lift the pedal body 613, then align the sleeve plate 603 with the convex plate 601 and push it backward, allowing the sleeve plate 603 to slide backward on the surface of the convex plate 601 via the sliding groove 604. Once the sleeve plate 603 is fully inserted into the surface of the convex plate 601, pinch the cover 611 and align the locking rod 609 with the locking groove B608, pushing it inward. When pushing the cover 611, the washer 612 on its surface effectively prevents slippage. Under the pushing force, the locking rod 609 drives the soft pad 610 through the locking groove B608 into the side block B607. The slide plate 603 slides through the positioning groove 602 and passes through the protruding plate 601. Finally, it slides into the side block A605 through the slot A606. At this time, the cover 611 completely covers the side block B607. The soft pad 610 is stuck inside the protruding plate 601 through the positioning groove 602, thereby fixing the cover plate 603. Then, the folding plate 615 is pulled upward through the pinch groove 616, so that the folding plate 615 rotates at the top of the pedal body 613 through the hinge 614. When the folding plate 615 is completely rotated open through the hinge 614, the staff can clean the inside of the wastewater tank body 201, the filter tank 301, the nitrification tank 401 and the gasification tank 501 through the pedal body 613.

[0051] During maintenance, when maintenance is required after prolonged use, first pull the side cover 105 upwards, allowing the mounting plate 104 to slide upwards through the mounting groove 103 inside the side plate 102. Once the mounting plate 104 has completely slid out of the side plate 102 through the mounting groove 103, maintenance can be performed on water pumps A203 and B304, as well as air pumps 503 and air tanks 505. When maintenance is required on the filter screen 311 and nitrification filter element 405, pull the handle 10 upwards, causing the handle 10 to slide upwards via the connecting rod 9, along with the filter screen 311. Slide upwards, at which point the bottom end of the fixing ring 8 disengages from the boss 7 and slides upwards inside the filter tank 301. Once it has completely slid out of the filter tank 301, the filter screen 311 can be maintained. Then, with the help of a lifting tool, the lifting rod 13 can be hung through the groove 12 to lift upwards. At this time, the fixing plate 404 slides upwards through the limiting groove 403 in the middle of the limiting plate 402. Once the fixing plate 404 drives the nitrification filter element 405 to completely slide out of the nitrification tank 401, and also drives the pad 11 to completely slide out of the nitrification tank 401, the nitrification filter element 405 can be maintained.

[0052] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A nitritation denitrification filter, characterized by: Including shell mechanism (1), the top of shell mechanism (1) is provided with wastewater pool mechanism (2), the top of shell mechanism (1) is provided with filter mechanism (3), the top of shell mechanism (1) is provided with nitration mechanism (4), the top of shell mechanism (1) is provided with gasification mechanism (5), the top of shell mechanism (1) is fixedly installed with pedal mechanism (6); The shell mechanism (1) includes a shell body (101), a back surface of the shell body (101) is fixedly installed with a side plate (102), and a top end of the side plate (102) is provided with a side cover (105); The pedal mechanism (6) includes a convex plate (601), a top end of the convex plate (601) is provided with a sleeve plate (603), a side surface of the sleeve plate (603) is provided with a side block A (605) and a side block B (607), an inner part of the side block B (607) is provided with a clamping rod (609), a top end of the sleeve plate (603) is provided with a pedal body (613), and a top end of the pedal body (613) is provided with a folding plate (615); The convex plate (601) is symmetrically distributed at left and right ends of the top end of the shell body (101), the sleeve plate (603) is slidably connected between the convex plate (601) and the sliding groove (604), the clamping rod (609) is connected between the side block A (605) and the clamping slot A (606), the clamping rod (609) is slidably connected between the side block B (607) and the clamping slot B (608), the clamping rod (609) is slidably connected between the convex plate (601) and the positioning groove (602), a surface of the clamping rod (609) is fixedly installed with a soft pad (610), a right side of the clamping rod (609) is fixedly installed with a sleeve cover (611), a surface of the sleeve cover (611) is fixedly installed with a gasket (612), the folding plate (615) is rotatably connected between the pedal body (613) and the hinge (614), the folding plate (615) is symmetrically distributed at left and right ends of the top end of the pedal body (613), the hinge (614) is evenly distributed at left and right sides of the top end of the pedal body (613), and a surface of the folding plate (615) is provided with a pinching groove (616).

2. The nitritation-denitritation filter according to claim 1, characterized in that: A top end of the side plate (102) is provided with a mounting groove (103), a bottom end of the side cover (105) is fixedly installed with a mounting plate (104), the mounting plate (104) is slidably connected between the side plate (102) and the mounting groove (103), and the side cover (105) is slidably connected with the shell body (101).

3. The nitritation-denitritation filter according to claim 1, characterized in that: The wastewater tank mechanism (2) includes a wastewater tank body (201), the top end of the side plate (102) is fixedly installed with a water pump A (203), the water pump A (203) is fixed at the top end of the side plate (102) through a mounting block A (204), a water pipe A (205) and a water pipe B (208) are installed on the side surface of the water pump A (203), the water pipe A (205) is fixed on the inner wall of the wastewater tank body (201) through a fixed groove A (202), a collecting box (206) is installed on the surface of the water pipe A (205), a water suction port (207) is formed in the surface of the collecting box (206), the water pipe B (208) is fixed on the inner wall of a filter tank (301) through a fixed groove B (210), a water outlet (209) is formed in the inner portion of the water pipe B (208), the filter mechanism (3) includes the filter tank (301), the top end of the side plate (102) is fixedly installed with a water pump B (304), the water pump B (304) is fixed at the top end of the side plate (102) through a mounting block B (305), a conveying pipe A (306) and a conveying pipe B (308) are installed on the side surface of the water pump B (304), the conveying pipe A (306) is fixed on the inner wall of the filter tank (301) through a fixed groove C (302), an input port (307) is formed in the inner portion of the conveying pipe A (306), the conveying pipe B (308) passes through the filter tank (301) through a fixed groove D (303) and is fixed on the inner wall of a nitrification tank (401) through a fixed groove E (310), an output port (309) is formed in the inner portion of the conveying pipe B (308), and the inner portion of the filter tank (301) is provided with a filter screen (311).

4. The nitritation-denitritation filter for use according to claim 1, characterized in that: The nitrification mechanism (4) includes the nitrification tank (401), the inner portion of the nitrification tank (401) is provided with a limiting plate (402), the limiting plate (402) is provided with a limiting groove (403) in the middle, the limiting plate (402) is provided with a fixed plate (404) in the middle, the fixed plate (404) is connected between the limiting groove (403) and the limiting plate (402) through sliding, the fixed plate (404) is uniformly distributed in the inner portion of the nitrification tank (401), the fixed plate (404) is fixedly installed with a nitrification filter element (405) in the middle, the right side of the nitrification tank (401) is provided with a through groove (406), the gasification mechanism (5) includes a gasification tank (501), the top end of the side plate (102) is fixedly installed with a gas pump (503), the left side of the gas pump (503) is installed with a conduit A (504) and a gas tank (505), the surface of the gas pump (503) is installed with a conduit B (506), the conduit B (506) is installed at the inner bottom end of the gasification tank (501) through a fixed groove F (502), and the top end of the conduit B (506) is provided with a gas outlet (507).

5. The nitritation-denitritation filter for use according to claim 1, characterized in that: The inside of the filtering mechanism (3) is fixedly installed with a boss (7), the top of the boss (7) is provided with a fixing ring (8), the top of the fixing ring (8) is fixedly installed with a connecting rod (9), the top of the connecting rod (9) is fixedly installed with a handle (10), the surface of the nitrification mechanism (4) is fixedly installed with a clamping pad (11), the top of the nitrification mechanism (4) is provided with a groove (12), and the inside of the groove (12) is fixedly installed with a suspender (13).

6. The nitritation-denitritation filter according to claim 5, characterized in that: The fixing ring (8) is in sliding connection with the boss (7), the fixing ring (8) is in sliding connection with the filtering tank (301), the connecting rods (9) are symmetrically distributed on the left and right sides of the bottom of the handle (10), the handle (10) is symmetrically distributed on the top of the fixing ring (8), the clamping pads (11) are uniformly distributed on the front and rear ends of the fixing plate (404), the clamping pads (11) are in sliding connection with the nitrification tank (401), and the grooves (12) are symmetrically distributed on the front and rear ends of the top of the fixing plate (404).

7. The nitritation-denitritation filter for use according to claim 1, characterized in that: The right side of the shell body (101) is fixedly installed with a drain pipe (14), the inside of the drain pipe (14) is provided with a drain opening (15), the top of the drain pipe (14) is provided with a sealing groove (16), the inside of the sealing groove (16) is provided with a sealing plate (17), and the top of the sealing plate (17) is fixedly installed with a top plate (18).

8. The nitritation-denitritation filter according to claim 7, characterized in that: The sealing plate (17) is in sliding connection between the sealing groove (16) and the drain pipe (14), and the top plate (18) is in sliding connection with the drain pipe (14).

9. A method of use for a nitritation-denitritation filter, characterized in that: The nitrification and denitrification filter tank of any one of claims 1-8 is used, comprising the following steps: S1: first, place the shell mechanism (1) at the desired position, install the filter screen (311) in the filtering tank (301) and the nitrification filter core (405) in the nitrification tank (401), hold the side cover (105) and pull it upwards, so that the mounting plate (104) slides along the installation groove (103) in the side plate (102) to completely come out, then fix the water pump A on the top of the side plate (102) through the mounting block A, fix the water pipe A and the water pipe B (208) on the inner wall of the wastewater tank and the filtering tank (301) through the fixing groove A and the fixing groove B, then fix the water pump B, connect the filtering tank (301) and the nitrification tank (401) through the fixing groove C, the fixing groove D (303) and the fixing groove E (310) in sequence, install the air pump (503) on the top of the side plate (102), and then install the air pipe B into the gasification tank (501) through the fixing groove F, finally, after adjusting the water pump A, the water pump B (304) and the air pump (503) to meet the standards, press the bottom of the side cover (105) against the mounting plate (104) and reset it. S2: the wastewater to be treated is injected into the wastewater pool, after filling, the water pump A (203) is started, the wastewater enters the collection box (206) through the water suction port (207), and then flows into the filtering mechanism (3) through the water pipe A (205) and the water pipe B (208), and the preliminary filtration is completed through the filter screen (311), then the water pump B (304) is started, the filtered wastewater is introduced into the nitration mechanism (4) through the conveying pipe A (306) and the conveying pipe B (308), and the secondary filtration is carried out by using the nitration filter element (405), the treated wastewater flows into the gasification mechanism (5) through the through groove (406), and finally enters the gasification tank (501), at this time, the air pump (503) is started, the treatment gas in the gas tank (505) is introduced into the guide pipe B (506) through the guide pipe A (504), and the gas is injected into the wastewater for gasification treatment, after the treatment is completed, the top plate (18) is lifted to make the sealing plate (17) slide up along the sealing groove (16) to separate from the drain pipe (14), and the water in the gasification tank (501) can be discharged through the drain port (15) and the drain pipe (14); S3: when cleaning is needed for long-term use, first, the pedal mechanism (6) is assembled, the pedal body (613) is lifted, the sleeve plate (603) is aligned with the convex plate (601) and pushed to make it completely slide into the sliding groove (604), then the sleeve cover (611) is pinched, the clamping rod (609) is aligned with the clamping groove B (608) and pushed inward, the clamping rod (609) is prevented from slipping by the gasket (612), the clamping rod (609) with the soft pad (610) is pushed to slide into the side block B (607) through the clamping groove B (608), passes through the positioning groove (602) and is fixed to the side block A (605) through the clamping groove A (606), at this time, the sleeve cover (611) covers the side block B (607), the soft pad (610) clamps the convex plate (601) to fix the sleeve plate (603), the folding plate (615) is pulled up through the pinch groove (616), and the folding plate (615) is unfolded by rotating around the hinge (614) at the top end of the pedal, after completion, the worker can clean the inside of the wastewater pool, the filtering pool (301), the nitration pool (401) and the gasification pool (501) through the pedal; S4: when maintenance is needed for long-term use, first, the side cover (105) is pulled up, the mounting plate (104) slides out of the side plate (102) along the mounting groove (103), and the water pump A (203), the water pump B (304) and the air pump (503) and the gas tank (505) can be repaired, if the filter screen (311) needs to be maintained, the handle is held and pulled up, the fixed ring (8) and the filter screen (311) are driven to slide up through the connecting rod (9), after the bottom end of the fixed ring (8) is separated from the convex table (7) and completely slides out of the filtering pool (301), the operation can be performed, when the nitration filter element (405) needs to be maintained, the fixed plate (404) is pulled up along the limiting groove (403) by means of the lifting tool hooking rod (13), after the fixed plate (404) drives the filter element and the clamping pad (11) to completely separate from the nitration pool (401), the related maintenance work can be carried out.

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