Denitrification device capable of filtering and cleaning

Abstract

The utility model discloses a denitrification device capable of filtering and cleaning, which relates to the technical field of sewage treatment and comprises a tank body, two groups of partition plates are fixedly connected in the tank body, and a cleaning component capable of filtering and cleaning sludge and sundries is arranged on the left side in the tank body. According to the denitrification device capable of filtering and cleaning, by arranging the collecting tank, the stainless steel filter screen, the sewage draining exit and the electromagnetic valve, when the denitrification device is used, sewage can be firstly intercepted by an intercepting structure formed by the collecting tank and the stainless steel filter screen, and the sewage is firstly filtered by the stainless steel filter screen before entering the anaerobic tank; the stainless steel filter screen intercepts clods and small-particle impurities in the water body and downwards deposits in the collecting tank, the electromagnetic valve is periodically opened, and the deposits in the collecting tank are discharged through the sewage draining exit, so that the function of conveniently filtering and cleaning is realized, and the problem that the device does not have the function of conveniently filtering and cleaning is solved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a denitrification device that can be filtered and cleaned. Background Technology

[0002] Biological denitrification is a common wastewater treatment technology. Under the combined action of autotrophic microorganisms, organic nitrogen and ammonia nitrogen in wastewater are converted into nitrogen gas through ammonification, nitrification, and denitrification.

[0003] Most commonly available biological denitrification equipment on the market is wastewater treatment tank type equipment, which is divided into three parts: anaerobic tank, anoxic tank and aerobic tank. In the three tanks, nitrogen-containing organic matter in wastewater is decomposed through ammonification, nitrification and denitrification reactions, respectively, releasing nitrogen gas. In actual use, there are some functional shortcomings and room for improvement. For example, wastewater usually enters the anaerobic tank directly. The pre-treated wastewater still contains a lot of sludge and small particles, which are easy to form sediment in the anaerobic tank. The subsequent sewage discharge and cleaning are more troublesome and can easily affect the normal function of the anaerobic tank. It does not have the function of easy filtration and cleaning.

[0004] Now, a novel filterable and cleanable denitrification device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a denitrification device that can be filtered and cleaned, so as to solve the problem mentioned in the background art that it does not have the function of easy filtration and cleaning.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a filterable and cleanable denitrification device, comprising a tank body, with two sets of partition plates fixedly connected inside the tank body. A first submersible pump is arranged on the left side of the partition plates, and a water outlet pipe is fixedly connected to the right side of the partition plates. A water supply pipe is fixedly connected between the first submersible pump and the water outlet pipe. A PLC controller is fixedly connected at the middle position of the left side of the tank body. A water inlet is fixedly connected to the top of the left side of the tank body. A return pipe is horizontally arranged above the tank body. A second submersible pump is fixedly connected to the right side inside the tank body. The bottom of the tank is fixedly connected to a first pipe network, and multiple aeration discs are installed at the top of the first pipe network. A water outlet is fixedly connected to the top of the right side of the tank. A blower bracket is welded to the middle of the right side of the tank. A high-pressure blower is installed on the top of the blower bracket. A hot air box is fixedly connected to the bottom of the blower bracket. An air guide pipe is fixedly connected between the high-pressure blower and the hot air box. Multiple sets of heating wires are horizontally fixed between the two sides inside the hot air box. An air inlet pipe is fixedly connected between the hot air box and the first pipe network. A cleaning component for filtering and cleaning sludge and debris is provided on the left side inside the tank.

[0007] The cleaning assembly includes a collection tank, which is fixedly connected to the top of the left side inside the pool body. A stainless steel filter screen is welded to the top of the collection tank. Three sets of drain outlets are fixedly connected to the bottom of the left side of the pool body, and a solenoid valve is installed on the left side of each drain outlet.

[0008] As a further technical solution of this utility model, the left side of the stainless steel filter screen is fixedly connected to the left side of the pool body, and the front and rear ends and the right side of the collection tank and the stainless steel filter screen are flush.

[0009] As a further technical solution of this utility model, the collection tank and the stainless steel filter screen are internally connected, and the top of the stainless steel filter screen is higher than the top of the water inlet.

[0010] As a further technical solution of this utility model, the internal connections of the collection tank and the sewage outlet are made, and the electromagnetic valve and the PLC controller are electrically connected.

[0011] As a further technical solution of this utility model, the air duct, hot air box, air inlet pipe, and first pipe network are internally connected, and the PLC controller, high-pressure fan, and heating wire are electrically connected.

[0012] As a further technical solution of this utility model, a second pipe network is fixedly connected horizontally between the pool body and the partition plate. Multiple sets of water outlet capillary tubes are fixedly connected to the bottom end of the second pipe network. A connecting pipe is fixedly connected between the water outlet guide tube and the second pipe network. The vertical center lines of the aeration disc and the water outlet capillary tube coincide. The water outlet guide tube, the second pipe network, and the connecting pipe are internally connected.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the filterable and cleanable denitrification device not only realizes the function of easy filtration and cleaning, but also realizes the function of easy heating in winter, and also realizes the function of promoting water-air contact.

[0014] (1) By setting up a collection tank, stainless steel filter screen, sewage outlet and solenoid valve, when in use, sewage enters the tank from the inlet. The partition plate divides the inside of the tank into an anaerobic tank, an anoxic tank and an aerobic tank from left to right. The sewage first enters the anaerobic tank for ammonification reaction, then enters the aerobic tank for nitrification reaction after passing through the anoxic tank, and then flows back to the anoxic tank for denitrification reaction. Nitrogen gas in the water is released. The interception structure formed by the collection tank and stainless steel filter screen can intercept the sewage first. Before entering the anaerobic tank, the sewage passes through the stainless steel filter screen. The stainless steel filter screen intercepts mud and small particles in the water and deposits them downward in the collection tank. The solenoid valve opens periodically and discharges the sediment in the collection tank through the sewage outlet. As the solenoid valve opens, the water in the anaerobic tank flows in the opposite direction along the stainless steel filter screen to achieve backwashing, which can clean the blockage inside the stainless steel filter screen and realize the function of easy filtration and cleaning.

[0015] (2) By setting up a blower bracket, a high-pressure blower, an air duct, a hot air box, an electric heating wire, an air inlet pipe, a first pipe network and an aeration disc, when in use, in the low temperature weather of winter, the electric heating wire in the hot air box is turned on and its power is adjusted. The high-pressure blower continuously pumps air into the hot air box through the air duct. After being heated by the electric heating wire, the high-pressure gas enters the first pipe network along the air inlet pipe and is sprayed out from the aeration disc to raise the temperature of the water in the aerobic tank and keep it at 20-30℃, thus realizing the function of easy heating in winter.

[0016] (3) By setting up a second pipe network, a water outlet pipe and a connecting pipe, when in use, the gas is sprayed upward along the aeration disc, and the submersible pump pumps the water in the anoxic pool into the second pipe network along the water outlet pipe and the connecting pipe. The water outlet pipe at the bottom of the second pipe network sprays water towards the aeration disc, and the water and gas come into more thorough contact, thus realizing the function of promoting water and gas contact. Attached Figure Description

[0017] Figure 1 This is a frontal cross-sectional view of the present invention.

[0018] Figure 2 This is an enlarged front cross-sectional view of the collection tank of this utility model;

[0019] Figure 3 For the present utility model Figure 1 Enlarged cross-sectional view of a portion of point A in the middle section;

[0020] Figure 4 This is a partial enlarged top view of the second pipeline structure of this utility model.

[0021] In the diagram: 1. Pool body; 2. Divider plate; 3. First submersible pump; 4. Water supply pipe; 5. Water outlet pipe; 6. Collection tank; 7. Stainless steel filter screen; 8. Sewage outlet; 9. Solenoid valve; 10. PLC controller; 11. Water inlet; 12. Return pipe; 13. Second submersible pump; 14. Water outlet; 15. Blower bracket; 16. High-pressure blower; 17. Air duct; 18. Hot air box; 19. Heating wire; 20. Air inlet pipe; 21. First pipe network; 22. Aeration disc; 23. Second pipe network; 24. Water outlet capillary pipe; 25. Connecting pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Please refer to Figure 1-4 A filterable denitrification device includes a tank body 1. Two sets of partition plates 2 are fixedly connected inside the tank body 1. A first submersible pump 3 is set on the left side of the partition plate 2. A water outlet pipe 5 is fixedly connected on the right side of the partition plate 2. A water supply pipe 4 is fixedly connected between the first submersible pump 3 and the water outlet pipe 5. A PLC controller 10 is fixedly connected at the middle position on the left side of the tank body 1. A water inlet 11 is fixedly connected to the top of the left side of the tank body 1. A return pipe 12 is horizontally arranged above the tank body 1. A second submersible pump 13 is fixedly connected to the right side inside the tank body 1. A first pipe network 21 is fixedly connected to the bottom of the inside of the tank body 1. Multiple sets of aeration discs 22 are installed at the top of the first pipe network 21. A water outlet 14 is fixedly connected to the top of the right side of the tank body 1. A cleaning component that can filter and clean sludge and debris is set on the left side inside the tank body 1.

[0024] Please see Figure 1-4 A filterable denitrification device also includes a cleaning component, which includes a collection tank 6, which is fixedly connected to the top of the left side inside the tank body 1. A stainless steel filter screen 7 is welded to the top of the collection tank 6, and three sets of drain outlets 8 are fixedly connected to the bottom of the left side of the tank body 1. A solenoid valve 9 is installed on the left side of the drain outlets 8.

[0025] The left side of the stainless steel filter screen 7 is fixedly connected to the left side inside the pool body 1. The front and rear ends and the right side of the collection tank 6 and the stainless steel filter screen 7 are flush. The internal parts of the collection tank 6 and the stainless steel filter screen 7 are connected. The top of the stainless steel filter screen 7 is higher than the top of the inlet 11. The internal parts of the collection tank 6 and the drain 8 are connected. The specific model of the solenoid valve 9 is AC 220V*DN65-80, and the specific model of the submersible pump is 65WQ35-7-2.2. The solenoid valve 9 and the PLC controller 10 are electrically connected, which can pre-filter sewage and facilitate cleaning.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, the interception structure consisting of the collection tank 6 and the stainless steel filter screen 7 can intercept sewage first. Before entering the anaerobic tank, the sewage passes through the stainless steel filter screen 7. The stainless steel filter screen 7 intercepts mud and small particles in the water and deposits them downwards in the collection tank 6. The solenoid valve 9 opens periodically and discharges the sediment in the collection tank 6 through the drain port 8. As the solenoid valve 9 opens, the water in the anaerobic tank flows in the opposite direction along the stainless steel filter screen 7 to achieve backwashing, which can clean the blockage inside the stainless steel filter screen 7. The solenoid valve 9 and the PLC controller 10 are electrically connected. This technology is existing technology and will not be described in detail.

[0027] A fan bracket 15 is welded to the middle position on the right side of the pool body 1. A high-pressure fan 16 is installed on the top of the fan bracket 15. A hot air box 18 is fixedly connected to the bottom of the fan bracket 15. A guide pipe 17 is fixedly connected between the high-pressure fan 16 and the hot air box 18. Multiple sets of electric heating wires 19 are horizontally fixedly connected between the two sides inside the hot air box 18. An air inlet pipe 20 is fixedly connected between the hot air box 18 and the first pipe network 21. The internal parts of the guide pipe 17, the hot air box 18, the air inlet pipe 20, and the first pipe network 21 are connected. The PLC controller 10, the high-pressure fan 16, and the electric heating wires 19 are electrically connected.

[0028] Specifically, such as Figure 1 and Figure 3 As shown, the heating wire 19 in the hot air box 18 is turned on and its power is adjusted. The high-pressure blower 16 continuously pumps air into the hot air box 18 through the air guide pipe 17. After being heated by the heating wire 19, the high-pressure gas enters the first pipe network 21 along the air inlet pipe 20 and is sprayed out from the aeration plate 22 to raise the temperature of the water in the aerobic tank and keep it at 20-30℃. The heating wire 19 is specifically model 0cr27Al7Mo2, and the high-pressure blower 16 is specifically model 2HB610H16. The PLC controller 10, the high-pressure blower 16, and the heating wire 19 are electrically connected. This technology is existing technology and will not be described in detail.

[0029] A second pipe network 23 is horizontally fixed between the pool body 1 and the partition plate 2. Multiple sets of water outlet capillary tubes 24 are fixedly connected to the bottom end of the second pipe network 23. A connecting pipe 25 is fixedly connected between the water outlet conduit 5 and the second pipe network 23. The vertical center lines of the aeration disc 22 and the water outlet capillary tubes 24 coincide. The water outlet conduit 5, the second pipe network 23, and the connecting pipe 25 are internally connected, and the water and air are promoted to merge and contact through water and air collision.

[0030] Specifically, such as Figure 1 and Figure 4 As shown, the submersible pump pumps the water from the anoxic pool into the second pipe network 23 along the outlet pipe 5 and the connecting pipe 25. The outlet thin pipe 24 at the bottom of the second pipe network 23 sprays water towards the aeration disc 22, making the water and air come into more thorough contact.

[0031] The computer software involved in the hardware carrier such as the PLC control unit in the technical solution of claim 1 is software technology known to those skilled in the art. It is merely applied to the aforementioned hardware carrier. In other words, the computer software involved in claim 1 is an essential technical feature for solving the above-mentioned technical problem, that is, it constitutes a necessary technical feature for solving the technical problem of this application, but it is not a differentiating technical feature for solving the technical problem (not a point of technical improvement). The applicant has not made any technical improvements to the computer software involved in the aforementioned related hardware carrier, nor is it a key technical point of the invention.

[0032] Therefore, the "PLC controller", "submersible pump", "solenoid valve", "high-pressure blower" and other components involved in this application are all physical functional modules that combine existing computer software programs or protocols with the hardware carrier of this application. The computer software programs involved in these physical functional modules are technologies known to those skilled in the art and are not improvements of this application. The improvement of this application should be the interaction between the various physical functional modules, that is, the improvement of the overall structure of the denitrification device of this application, in order to solve the corresponding technical problems to be solved by this application.

[0033] Working Principle: In use, wastewater first enters the tank 1 through the inlet 11. The partition plate 2 divides the tank 1 into an anaerobic tank, an anoxic tank, and an aerobic tank from left to right. The wastewater first enters the anaerobic tank for ammoniation, then passes through the anoxic tank and enters the aerobic tank for nitrification, and then flows back to the anoxic tank for denitrification. Nitrogen gas is released from the water. The interception structure consisting of the collection tank 6 and the stainless steel filter screen 7 can intercept the wastewater first. Before entering the anaerobic tank, the wastewater passes through the stainless steel filter screen 7, which intercepts mud and small particles in the water and deposits them downwards in the collection tank 6. The solenoid valve 9 opens periodically and discharges the sediment in the collection tank 6 through the drain outlet 8. As the solenoid valve 9 opens, the water in the anaerobic tank flows in the opposite direction along the stainless steel filter screen 7, achieving backwashing and cleaning the blockage inside the stainless steel filter screen 7. In cold winter weather, the heating wire 19 in the hot air box 18 is turned on and its power is adjusted. The high-pressure blower 16 continuously pumps air into the hot air box 18 through the air guide pipe 17. After being heated by the heating wire 19, the high-pressure gas enters the first pipe network 21 along the air inlet pipe 20 and is sprayed out from the aeration disc 22, raising the temperature of the water in the aerobic tank and maintaining it at 20-30℃. The gas surges upward along the aeration disc 22, and the submersible pump pumps the water from the anoxic tank into the second pipe network 23 along the water outlet pipe 5 and the connecting pipe 25. The water outlet thin pipe 24 at the bottom of the second pipe network 23 sprays water towards the aeration disc 22, resulting in more thorough water-air collision and contact.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A filterable and cleanable denitrification device, comprising a tank (1), characterized in that: Two sets of partition plates (2) are fixedly connected inside the pool body (1). A first submersible pump (3) is installed on the left side of the partition plate (2), and a water outlet pipe (5) is fixedly connected on the right side of the partition plate (2). A water supply pipe (4) is fixedly connected between the first submersible pump (3) and the water outlet pipe (5). A PLC controller (10) is fixedly connected at the middle position on the left side of the pool body (1). A water inlet (11) is fixedly connected to the top left side of the pool body (1). A return pipe (12) is horizontally arranged above the pool body (1). A second submersible pump (13) is fixedly connected to the right side inside the pool body (1). A first pipe network (21) is fixedly connected to the bottom of the pool body (1). The top of the first pipe network (21) Multiple aeration discs (22) are installed at the end. A water outlet (14) is fixedly connected to the top right side of the pool body (1). A blower bracket (15) is welded to the middle right side of the pool body (1). A high-pressure blower (16) is installed on the top of the blower bracket (15). A hot air box (18) is fixedly connected to the bottom of the blower bracket (15). A guide pipe (17) is fixedly connected between the high-pressure blower (16) and the hot air box (18). Multiple sets of electric heating wires (19) are fixedly connected horizontally between the two sides inside the hot air box (18). An air inlet pipe (20) is fixedly connected between the hot air box (18) and the first pipe network (21). A cleaning component that can filter and clean sludge and debris is provided on the left side inside the pool body (1). The cleaning assembly includes a collection tank (6), which is fixedly connected to the top of the left side inside the pool body (1). A stainless steel filter screen (7) is welded to the top of the collection tank (6). Three sets of drain ports (8) are fixedly connected to the bottom of the left side of the pool body (1). A solenoid valve (9) is installed on the left side of the drain port (8).

2. The denitrification device capable of being filtered and cleaned according to claim 1, characterized in that: The left side of the stainless steel filter screen (7) is fixedly connected to the left side inside the pool body (1), and the front and rear ends and the right side of the collection tank (6) and the stainless steel filter screen (7) are flush.

3. The denitrification device capable of being filtered and cleaned according to claim 1, characterized in that: The collection tank (6) and the stainless steel filter screen (7) are internally connected, and the top of the stainless steel filter screen (7) is higher than the top of the water inlet (11).

4. The denitrification device capable of being filtered and cleaned according to claim 1, characterized in that: The collection tank (6) and the drain outlet (8) are internally connected, and the solenoid valve (9) and the PLC controller (10) are electrically connected.

5. The denitrification device capable of being filtered and cleaned according to claim 1, characterized in that: The air duct (17), hot air box (18), air inlet pipe (20), and first pipeline (21) are internally connected, and the PLC controller (10), high-pressure fan (16), and heating wire (19) are electrically connected.

6. The denitrification device capable of being filtered and cleaned according to claim 1, characterized in that: A second pipe network (23) is fixedly connected laterally between the pool body (1) and the partition plate (2). Multiple sets of water outlet capillary tubes (24) are fixedly connected to the bottom end of the second pipe network (23). A connecting pipe (25) is fixedly connected between the water outlet conduit (5) and the second pipe network (23). The vertical center lines of the aeration disc (22) and the water outlet capillary tubes (24) coincide. The water outlet conduit (5), the second pipe network (23), and the connecting pipe (25) are internally connected.

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