Sulfur autotrophic denitrification nitrogen removal treatment device

Abstract

The invention relates to the technical field of sewage treatment, in particular to a sulfur autotrophic denitrification nitrogen removal treatment device which comprises an integrated box, a second turnover plate is rotatably mounted at the front end of the integrated box, a first turnover plate is rotatably mounted at the edge position of the top end of the integrated box, and a PLC is further fixedly mounted at the front end of the integrated box. Through multi-treatment of the ultrafiltration membrane tube, the autotrophic denitrifying bacteria and the activated carbon filter plate, the sewage treatment effect can be guaranteed, the autotrophic denitrifying bacteria can be in a proper survival environment, the denitrification effect can be guaranteed, the device is energy-saving, environment-friendly and convenient to use, the activated carbon filter plate is convenient to replace, the purification effect of a water body can be guaranteed, and the device is suitable for popularization and application. The resistance borne by the movable ring in the sliding process on the threaded lead screw can be reduced in the process of replacing the activated carbon filter plate, vertical movement of the sealing plate is facilitated, and replacement of the activated carbon filter plate is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a sulfur autotrophic denitrification treatment device. Background Art

[0002] Nitrogen in water exists in four forms: organic nitrogen, ammonia nitrogen, nitrite nitrogen and nitrate nitrogen. Nitrogen is widely present in nature and is of great significance to organisms. It is the main element for the synthesis of amino acids in cells. In recent years, due to the development of industry and agriculture, the excessive discharge of organic nitrogen and inorganic nitrogen has broken the balance of the nitrogen cycle and brought serious environmental problems. Nitrogen pollution mainly comes from: excessive use of nitrogen fertilizers; disorderly discharge of animal manure and septic tank systems; and discharge of sewage containing nitrate nitrogen and ammonia nitrogen in industrial processes. With the expansion of coal chemical industry and animal husbandry, and the increase in demand for domestic water and landfills, a large amount of nitrogen-containing pollutants are generated and discharged into natural water bodies through surface runoff, infiltration, etc., resulting in the accumulation of nitrogen-containing compounds and causing various hazards; inorganic nitrogen will cause eutrophication of water bodies; nitrate nitrogen will be converted into nitrite nitrogen, which may cause bladder cancer, ovarian cancer or gastric cancer after human ingestion. At the same time, high concentrations of nitrate nitrogen and nitrite nitrogen will affect the use of groundwater;

[0003] The nitrogen in the wastewater of refineries is mainly ammonia nitrogen and nitrate nitrogen. Currently, most of them are removed by biological nitrification and denitrification. Due to the poor biodegradability of refinery wastewater, a large amount of carbon sources are often required, such as glucose, acetic acid, sodium acetate, etc. Adding carbon sources will increase operating costs on the one hand, and cause secondary pollution to the water body on the other hand. With the improvement of sewage discharge standards, the existing sewage treatment facilities can no longer meet the requirements of deep treatment and are facing the problem of upgrading and transformation;

[0004] The Chinese invention patent document with publication number CN117486360A in the related art discloses a sulfur autotrophic denitrification denitrification device and a treatment method thereof, wherein the filter material frame comprises a middle tube, a filter material box and an outer cover, wherein the middle tube drives the outer cover to rotate to generate a water flow for flushing the inner wall of the tank body; a filter material box is hingedly installed at the side opening of the outer cover near the middle tube, and the outer cover drives the filter material box to rotate and filter the wastewater in the tank body; a filter material unit is built in the filter material box, and sulfur autotrophic denitrification microorganisms form a biofilm on the surface of the filter material unit, and the filter material box is deformed when the filter material unit is blocked to change the gap between the filter material units and generate a water flow for flushing the filter material units;

[0005] During the filter media cleaning of the present invention, the blockages will be collected in the slag accumulation mechanism, and the solid blockages will be completely discharged. By optimizing the flushing method and the filter media accumulation state, a lower flushing water flow can be used to clean the filter media, reducing unnecessary losses of bacterial film caused by high-speed water flow. However, during use, since the temperature of nitrochlorobenzene wastewater reaches 60-70°C, in order to prevent the high temperature from affecting the survival of autotrophic denitrifying bacteria, the nitrochlorobenzene wastewater needs to be cooled. If the heat after cooling is not utilized and directly discharged, it will cause a waste of energy. Moreover, when the activated carbon filter is used to purify the clean water after denitrification treatment, long-term use will cause the purification effect of the activated carbon filter plate to deteriorate, and the internal activated carbon filter is difficult to replace, affecting the purification effect of the clean water.

[0006] Therefore, a sulfur autotrophic denitrification treatment device is proposed. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a sulfur autotrophic denitrification treatment device.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A sulfur autotrophic denitrification treatment device, comprising:

[0010] An integrated box, wherein a second flip plate is rotatably mounted at the front end of the integrated box, a first flip plate is rotatably mounted at the edge of the top of the integrated box, a PLC controller is also fixedly mounted at the front end of the integrated box, and a wastewater collection tank, an autotrophic denitrification filter tank and a clean water tank are sequentially arranged in the integrated box from left to right;

[0011] A first connecting frame, wherein the first connecting frame is fixedly installed at the bottom of the autotrophic denitrification filter tank, a plurality of ultrafiltration membrane tubes are evenly connected to the top of the first connecting frame, a second connecting frame is commonly connected to the top of the plurality of ultrafiltration membrane tubes, a round tube is connected to the top of the second connecting frame, a second supporting frame is fixedly installed above the round tube and in the autotrophic denitrification filter tank, and a bacterial seed layer is arranged at the top of the second supporting frame;

[0012] A plate heat exchanger, wherein the plate heat exchanger is fixedly mounted on the side wall of the wastewater collection tank, the water inlet of the plate heat exchanger is connected to a first water inlet pipe, the water outlet of the plate heat exchanger is connected to a conduit, and the other end of the conduit is connected to the top of the wastewater collection tank, and the side wall at the top of the wastewater collection tank is also connected to a second water inlet pipe, the first water inlet pipe and the second water inlet pipe both extend outside the integrated box, and the first water inlet pipe and the second water inlet pipe are both provided with a flow meter electrically connected to a PLC controller;

[0013] A heat exchange pipe, wherein the heat exchange pipe is located in the autotrophic denitrification filter tank, and both ends of the heat exchange pipe extend to the plate heat exchanger and are connected to the heat exchange medium outlet and the heat exchange medium inlet of the plate heat exchanger, and a circulation pump is fixedly installed on the side wall of the wastewater collection tank, and the inlet and outlet of the circulation pump are both connected to the heat exchange pipe;

[0014] A heater, wherein the heater is fixedly mounted on the inner wall of the top of the autotrophic denitrification filter tank, the heater is electrically connected to the PLC controller, and a temperature sensor electrically connected to the PLC controller is also arranged in the autotrophic denitrification filter tank;

[0015] A sealing plate, wherein the sealing plate is slidably mounted on the top of the clean water tank, a first support frame is fixedly mounted on the bottom wall of the clean water tank, and an activated carbon filter plate is clamped on the first support frame;

[0016] The driving platform is fixedly mounted on the side wall of the clean water tank, a connecting rod is slidably mounted on the driving platform, the top end of the connecting rod is fixedly connected to the top wall of the sealing plate, and an oil storage tank is also fixedly mounted on the side wall of the connecting rod.

[0017] Preferably, a material guide pipe is provided at the bottom end of the wastewater collection tank, an injection pump is provided on the material guide pipe, and an outlet of the injection pump is connected to the first connecting frame.

[0018] Preferably, a backwash pump electrically connected to the PLC controller is fixedly installed on the side wall of the autotrophic denitrification filter tank, the inlet of the backwash pump is connected to a water suction pipe, the other end of the water suction pipe is connected to the bottom wall of the clean water tank, the outlet of the backwash pump is connected to a backwash pipe, the other end of the backwash pipe is connected to the circular pipe at the top of the second connecting frame, the bottom end of the first connecting frame is also connected to a sewage pipe, and the sewage pipe extends outside the integrated box.

[0019] Preferably, the top of the autotrophic denitrification filter is also connected to an air outlet pipe, the air outlet pipe extends to the outside of the integrated box, and a one-way valve is arranged in the air outlet pipe.

[0020] Through the above scheme, when in use, when the sewage enters the autotrophic denitrification filter tank from the wastewater collection tank along the guide pipe, the ultrafiltration membrane tube between the first connecting frame and the second connecting frame can filter the wastewater, and the sewage after preliminary filtration can flow to the bacterial layer, and the autotrophic denitrifying bacteria and sulfur element are used for denitrification treatment, which can convert nitrogen ions in the wastewater into nitrogen gas and discharge it from the outlet pipe. The clear water after precipitation can flow into the clear water tank, and after adsorption and purification treatment by the activated carbon filter plate, the clear water that meets the standards can be taken through the outlet pipe. The multiple treatments of the ultrafiltration membrane tube, the autotrophic denitrifying bacteria and the activated carbon filter plate can ensure the sewage treatment. The effect is achieved, and when treating nitrochlorobenzene wastewater, since the temperature of the nitrochlorobenzene wastewater reaches 60-70°C, the nitrochlorobenzene wastewater is injected into the plate heat exchanger to cool the nitrochlorobenzene wastewater, and the medium in the heat exchange tube can be pumped into the plate heat exchanger through a circulation pump to exchange heat with the nitrochlorobenzene wastewater, and the heat of the nitrochlorobenzene wastewater is further transferred to the autotrophic denitrification filter. In combination with the heater and the temperature sensor in the autotrophic denitrification filter, the autotrophic denitrifying bacteria can be placed in a suitable living environment, the denitrification effect can be guaranteed, the heat of the nitrochlorobenzene wastewater can be utilized, the energy consumption of the heater can be reduced, the energy saving and environmental protection are achieved, and the use is convenient.

[0021] Preferably, a movable opening groove is provided on the side wall of the driving platform, a threaded screw is rotatably installed in the movable opening groove, a movable ring is sleeved on the outer side of the threaded screw, a threaded hole matched with the threaded screw is provided at the center of the movable ring, and the side wall of the movable ring is fixedly connected to the bottom wall of the connecting rod.

[0022] Preferably, a motor electrically connected to a PLC controller is fixedly mounted on the side wall at the bottom end of the clean water tank, and an output end of the motor is fixedly connected to the bottom wall of the threaded screw.

[0023] Through the above scheme, after the motor is started by the PLC controller, the motor can drive the threaded screw to rotate in the movable open groove on the driving platform. Since a threaded hole matching the threaded screw is provided at the center of the movable ring, the threaded screw can drive the movable ring to slide on the driving platform during rotation. The direction of movement of the movable ring can be controlled by controlling the rotation direction of the motor. When the movable ring moves upward, the sealing plate at the end of the connecting rod can slide upward, so that the activated carbon filter plate on the first support frame can be moved outside the clean water tank, which is convenient for replacing the activated carbon filter plate and can ensure the purification effect of the water body.

[0024] Preferably, the oil storage tank is filled with lubricating oil, and an oil filling pipe is connected to the bottom end of the oil storage tank, and the other end of the oil filling pipe extends to the threaded hole on the movable ring.

[0025] Preferably, a liquid level sensor electrically connected to the PLC controller is fixedly mounted on the bottom end of the oil storage tank, and a solenoid valve electrically connected to the PLC controller is fixedly mounted on the oil filling pipe.

[0026] Preferably, the top of the autotrophic denitrification filter is connected to the top of the clean water tank, and the bottom of the clean water tank is also connected to a water outlet pipe, and the water outlet pipe extends to the outside of the integrated box.

[0027] Through the above scheme, when in use, after the solenoid valve is started by the PLC controller, the lubricating oil in the oil storage tank can flow along the oil filling pipe to the threaded hole on the movable ring, and can be adsorbed on the outer wall of the threaded screw while the threaded screw slides along the threaded hole, so as to lubricate the threaded screw and the threaded hole on the movable ring, and reduce the resistance encountered by the movable ring in the process of sliding on the threaded screw, which is beneficial to the up and down movement of the sealing plate and the replacement of the activated carbon filter plate. The liquid level sensor in the oil storage tank can monitor the lubricating oil level in the oil storage tank, which can facilitate users to replenish the lubricating oil in time and ensure the lubrication effect.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. The present invention can filter wastewater through the ultrafiltration membrane tube between the first connecting frame and the second connecting frame, and the sewage after preliminary filtration can flow to the bacterial layer, and the autotrophic denitrifying bacteria cooperates with the sulfur element to carry out denitrification treatment, so that the nitrogen ions in the wastewater can be converted into nitrogen gas and discharged from the outlet pipe, and the clear water after precipitation can flow into the clear water tank, and after the adsorption and purification treatment of the activated carbon filter plate, the clear water that meets the standards can be taken through the outlet pipe. The ultrafiltration membrane tube, the autotrophic denitrifying bacteria and the activated carbon filter plate are used for multiple treatments, so the sewage treatment effect can be guaranteed, and when treating nitrochlorobenzene wastewater, due to When the temperature of nitrochlorobenzene wastewater reaches 60-70℃, the nitrochlorobenzene wastewater is injected into the plate heat exchanger to cool the nitrochlorobenzene wastewater. The medium in the heat exchange tube can be pumped into the plate heat exchanger through a circulation pump to exchange heat with the nitrochlorobenzene wastewater, and the heat of the nitrochlorobenzene wastewater is further transferred to the autotrophic denitrification filter. With the heater and temperature sensor in the autotrophic denitrification filter, the autotrophic denitrifying bacteria can be placed in a suitable living environment, the denitrification effect can be guaranteed, the heat of the nitrochlorobenzene wastewater can be utilized, the energy consumption of the heater can be reduced, energy saving and environmental protection are achieved, and it is easy to use.

[0030] 2. After the motor is started by the PLC controller of the present invention, the motor can drive the threaded screw to rotate in the movable open groove on the driving platform. Since a threaded hole matching the threaded screw is provided at the center of the movable ring, the threaded screw can drive the movable ring to slide on the driving platform during rotation. The direction of movement of the movable ring can be controlled by controlling the rotation direction of the motor. When the movable ring moves upward, the sealing plate at the end of the connecting rod can slide upward, so that the activated carbon filter plate on the first support frame can be moved outside the clean water tank, which is convenient for replacing the activated carbon filter plate and can ensure the purification effect of the water body.

[0031] 3. After the solenoid valve is started by the PLC controller of the present invention, the lubricating oil in the oil storage tank can flow along the oil filling pipe to the threaded hole on the movable ring, and can be adsorbed on the outer wall of the threaded screw when the threaded screw slides along the threaded hole, so as to lubricate the threaded screw and the threaded hole on the movable ring, and reduce the resistance encountered by the movable ring in the process of sliding on the threaded screw, which is beneficial to the up and down movement of the sealing plate and the replacement of the activated carbon filter plate. The liquid level sensor in the oil storage tank can monitor the lubricating oil level in the oil storage tank, which is convenient for users to replenish the lubricating oil in time and ensure the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the overall structure of a sulfur autotrophic denitrification treatment device according to an embodiment of the present invention;

[0033] Figure 2 It is a schematic diagram of the cross-sectional structure of the integrated box in an embodiment of the present invention.

[0034] Figure 3 This is a schematic diagram of the structure inside the integrated box in an embodiment of the present invention;

[0035] Figure 4 It is a schematic diagram of the formal cross-sectional structure of the autotrophic denitrification filter tank in the embodiment of the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the two ends of the circulation pump in the embodiment of the present invention;

[0037] Figure 6 It is a schematic diagram of the side cross-sectional structure of the autotrophic denitrification filter tank in an embodiment of the present invention;

[0038] Figure 7 It is a schematic diagram of the formal cross-sectional structure of the clear water tank in an embodiment of the present invention;

[0039] Figure 8 Schematic diagram of the structure of the motor output terminal in an embodiment of the present invention.

[0040] In the figure: 1, integrated box; 2, first flip plate; 3, air outlet pipe; 4, first water inlet pipe; 5, second water inlet pipe; 6, second flip plate; 7, PLC controller; 8, sewage pipe; 9, conduit; 10, plate heat exchanger; 11, wastewater collection tank; 12, autotrophic denitrification filter; 13, clean water tank; 14, first support frame; 15, oil storage tank; 16, water outlet pipe; 17, heat exchange pipe; 18, first connecting frame; 19, injection pump; 20, guide pipe; 21, flow meter; 22, Circulation pump; 24, backwash pump; 25, water suction pipe; 26, sealing plate; 27, one-way valve; 28, temperature sensor; 29, heater; 30, ultrafiltration membrane tube; 31, second connecting frame; 32, second supporting frame; 33, bacterial layer; 34, backwash pipe; 35, activated carbon filter plate; 36, driving platform; 37, threaded screw; 38, connecting rod; 39, movable opening slot; 40, liquid level sensor; 41, solenoid valve; 42, oil filling pipe; 43, motor; 44, movable ring. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] Example: See Figures 1 to 8 , a sulfur autotrophic denitrification treatment device, comprising:

[0044] An integrated box 1, a second flip plate 6 is rotatably mounted at the front end of the integrated box 1, a first flip plate 2 is rotatably mounted at the edge of the top of the integrated box 1, a PLC controller 7 is also fixedly mounted at the front end of the integrated box 1, and a wastewater collection tank 11, an autotrophic denitrification filter tank 12 and a clean water tank 13 are sequentially arranged in the integrated box 1 from left to right;

[0045] A first connecting frame 18, the first connecting frame 18 is fixedly installed at the bottom end of the autotrophic denitrification filter 12, a plurality of ultrafiltration membrane tubes 30 are evenly connected to the top of the first connecting frame 18, a second connecting frame 31 is commonly connected to the top of the plurality of ultrafiltration membrane tubes 30, a round tube is connected to the top of the second connecting frame 31, a second supporting frame 32 is fixedly installed above the round tube and located in the autotrophic denitrification filter 12, and a bacterial seed layer 33 is arranged on the top of the second supporting frame 32;

[0046] The plate heat exchanger 10 is fixedly mounted on the side wall of the wastewater collection tank 11. The water inlet of the plate heat exchanger 10 is connected to a first water inlet pipe 4. The water outlet of the plate heat exchanger 10 is connected to a conduit 9. The other end of the conduit 9 is connected to the top of the wastewater collection tank 11. The side wall of the top of the wastewater collection tank 11 is also connected to a second water inlet pipe 5. The first water inlet pipe 4 and the second water inlet pipe 5 both extend outside the integrated box 1. The first water inlet pipe 4 and the second water inlet pipe 5 are both provided with a flow meter 21 electrically connected to the PLC controller 7.

[0047] The heat exchange pipe 17 is located in the autotrophic denitrification filter 12. Both ends of the heat exchange pipe 17 extend to the plate heat exchanger 10 and are connected to the heat exchange medium outlet and the heat exchange medium inlet of the plate heat exchanger 10. A circulation pump 22 is also fixedly installed on the side wall of the wastewater collection tank 11. The inlet and outlet of the circulation pump 22 are both connected to the heat exchange pipe 17.

[0048] A heater 29, the heater 29 is fixedly mounted on the inner wall at the top of the autotrophic denitrification filter 12, the heater 29 is electrically connected to the PLC controller 7, and a temperature sensor 28 electrically connected to the PLC controller 7 is also provided in the autotrophic denitrification filter 12;

[0049] A sealing plate 26 is slidably mounted on the top of the clean water tank 13. A first support frame 14 is fixedly mounted on the bottom wall of the clean water tank 13. An activated carbon filter plate 35 is mounted on the first support frame 14.

[0050] The driving platform 36 is fixedly mounted on the side wall of the clean water tank 13 , and a connecting rod 38 is slidably mounted on the driving platform 36 , the top end of the connecting rod 38 is fixedly connected to the top wall of the sealing plate 26 , and an oil storage tank 15 is also fixedly mounted on the side wall of the connecting rod 38 .

[0051] A material guide pipe 20 is provided at the bottom end of the wastewater collection tank 11 , and an injection pump 19 is provided on the material guide pipe 20 . The outlet of the injection pump 19 is connected to the first connecting frame 18 .

[0052] A backwash pump 24 electrically connected to the PLC controller 7 is fixedly installed on the side wall of the autotrophic denitrification filter 12, and the inlet of the backwash pump 24 is connected to a water suction pipe 25, and the other end of the water suction pipe 25 is connected to the bottom wall of the clean water tank 13, and the outlet of the backwash pump 24 is connected to a backwash pipe 34, and the other end of the backwash pipe 34 is connected to the circular pipe at the top of the second connecting frame 31, and the bottom end of the first connecting frame 18 is also connected to a sewage pipe 8, and the sewage pipe 8 extends to the outside of the integrated box 1.

[0053] The top of the autotrophic denitrification filter 12 is also connected to an air outlet pipe 3 , which extends to the outside of the integrated box 1 . A one-way valve 27 is provided in the air outlet pipe 3 .

[0054] In the present embodiment, when in use, after the sewage flows along the guide pipe 20 from the wastewater collection tank 11 into the autotrophic denitrification filter tank 12, the ultrafiltration membrane tube 30 between the first connecting frame 18 and the second connecting frame 31 can filter the wastewater, and the sewage after preliminary filtration can flow to the bacterial layer 33, and the autotrophic denitrifying bacteria cooperate with the sulfur element to carry out denitrification treatment, which can convert the nitrogen ions in the wastewater into nitrogen gas and discharge it from the outlet pipe 3, and the clear water after precipitation can flow into the clear water tank 13, and after the adsorption and purification treatment of the activated carbon filter plate 35, the clear water that meets the standards can be taken along the outlet pipe 16, and the ultrafiltration membrane tube 30, the autotrophic denitrifying bacteria cooperate with the activated carbon filter plate 35 for multiple treatment, which can ensure that the sewage is clean and hygienic. The water treatment effect is improved, and when treating nitrochlorobenzene wastewater, since the temperature of nitrochlorobenzene wastewater reaches 60-70°C, the nitrochlorobenzene wastewater is injected into the plate heat exchanger 10 to cool the nitrochlorobenzene wastewater, and the medium in the heat exchange tube 17 can be pumped into the plate heat exchanger 10 through the circulation pump 22 to exchange heat with the nitrochlorobenzene wastewater, and the heat of the nitrochlorobenzene wastewater is further transferred to the autotrophic denitrification filter 12. In combination with the heater 29 and the temperature sensor 28 in the autotrophic denitrification filter 12, the autotrophic denitrifying bacteria can be placed in a suitable living environment, the denitrification effect can be guaranteed, the heat of the nitrochlorobenzene wastewater can be utilized, the energy consumed by the heater 29 can be reduced, energy saving and environmental protection are achieved, and it is easy to use.

[0055] As an embodiment of the present invention, refer to Figure 7-Figure 8 A movable opening groove 39 is provided on the side wall of the driving platform 36, and a threaded screw 37 is rotatably installed in the movable opening groove 39. A movable ring 44 is sleeved on the outer side of the threaded screw 37. A threaded hole matching the threaded screw 37 is provided at the center of the movable ring 44. The side wall of the movable ring 44 is fixedly connected to the bottom wall of the connecting rod 38.

[0056] A motor 43 electrically connected to the PLC controller 7 is fixedly mounted on the side wall at the bottom end of the clear water tank 13 , and an output end of the motor 43 is fixedly connected to the bottom wall of the threaded screw 37 .

[0057] In this embodiment, when in use, after the motor 43 is started by the PLC controller 7, the motor 43 can drive the threaded screw 37 to rotate in the movable opening groove 39 on the driving platform 36. Since a threaded hole compatible with the threaded screw 37 is provided at the center of the movable ring 44, the threaded screw 37 can drive the movable ring 44 to slide on the driving platform 36 during rotation. The direction of movement of the movable ring 44 can be controlled by controlling the rotation direction of the motor 43. When the movable ring 44 moves upward, the sealing plate 26 at the end of the connecting rod 38 can slide upward, so that the activated carbon filter plate 35 on the first support frame 14 can be moved outside the clean water tank 13, which is convenient for replacing the activated carbon filter plate 35 and can ensure the purification effect of the water body.

[0058] As an embodiment of the present invention, refer to Figure 7-Figure 8 The oil storage tank 15 is filled with lubricating oil, and the bottom end of the oil storage tank 15 is connected to an oil filling pipe 42 , and the other end of the oil filling pipe 42 extends to the threaded hole on the movable ring 44 .

[0059] A liquid level sensor 40 electrically connected to the PLC controller 7 is fixedly mounted on the bottom end of the oil storage tank 15 , and a solenoid valve 41 electrically connected to the PLC controller 7 is fixedly mounted on the oil filling pipe 42 .

[0060] The top of the autotrophic denitrification filter 12 is connected to the top of the clean water tank 13 , and the bottom of the clean water tank 13 is also connected to a water outlet pipe 16 , and the water outlet pipe 16 extends to the outside of the integrated box 1 .

[0061] In this embodiment, after the solenoid valve 41 is started by the PLC controller 7, the lubricating oil in the oil storage tank 15 can flow along the oil filling pipe 42 to the threaded hole on the movable ring 44, and can be adsorbed on the outer wall of the threaded screw 37 when the threaded screw 37 slides along the threaded hole, so as to lubricate the threaded screw 37 and the threaded hole on the movable ring 44, and reduce the resistance encountered by the movable ring 44 during the sliding process on the threaded screw 37, which is beneficial to the up and down movement of the sealing plate 26 and the replacement of the activated carbon filter plate 35. The liquid level sensor 40 in the oil storage tank 15 can monitor the lubricating oil level in the oil storage tank 15, which can facilitate users to replenish the lubricating oil in time and ensure the lubrication effect.

[0062] Working principle: When in use, the biochemical tail water and other sewage are directly injected into the wastewater collection tank 11 through the second water inlet pipe 5, and the strong oxidation wastewater such as nitrochlorobenzene wastewater and other high-temperature wastewater are introduced into the plate heat exchanger 10 through the first water inlet pipe 4, and injected into the wastewater collection tank 11 after cooling, and the flow meter 21 can monitor the sewage injected into the wastewater collection tank 11, and then start the injection pump 19, and the sewage enters the autotrophic denitrification filter tank 12 from the wastewater collection tank 11 along the guide pipe 20. At this time, the first connecting frame 18 and the second connecting frame 31 are connected. The ultrafiltration membrane tube 30 in between can filter the wastewater, and the sewage after preliminary filtration can flow to the bacterial layer 33, and the autotrophic denitrifying bacteria cooperate with the sulfur element to carry out denitrification treatment, which can convert the nitrogen ions in the wastewater into nitrogen gas and discharge it from the outlet pipe 3, and the clean water after precipitation can flow into the clean water tank 13, and after the adsorption and purification treatment of the activated carbon filter plate 35, the clean water that meets the standards can be taken through the outlet pipe 16. The multiple treatments of the ultrafiltration membrane tube 30, the autotrophic denitrifying bacteria and the activated carbon filter plate 35 can ensure the sewage treatment effect;

[0063] When treating nitrochlorobenzene wastewater, since the temperature of nitrochlorobenzene wastewater reaches 60-70°C, the nitrochlorobenzene wastewater is injected into the plate heat exchanger 10 to cool the nitrochlorobenzene wastewater, and the medium in the heat exchange tube 17 can be pumped into the plate heat exchanger 10 through the circulation pump 22 to exchange heat with the nitrochlorobenzene wastewater, and the heat of the nitrochlorobenzene wastewater is further transferred to the autotrophic denitrification filter 12, and the heater 29 and the temperature sensor 2 in the autotrophic denitrification filter 12 are used. 8, can make the autotrophic denitrifying bacteria in a suitable living environment, can ensure the denitrification effect, and can utilize the heat of nitrochlorobenzene wastewater, can reduce the energy consumption of the heater 29, energy saving and environmental protection, easy to use, and through the backwash pump 24, can inject the clean water in the clean water tank 13 along the backwash pipe 34 into the second connecting frame 31, and further discharge it through the sewage pipe 8, can backwash the ultrafiltration membrane tube 30, can ensure the filtering effect of the ultrafiltration membrane tube 30;

[0064] When in use, after the first flip plate 2 on the integrated box 1 is opened, the motor 43 is started through the PLC controller 7, and the motor 43 can drive the threaded screw 37 to rotate in the movable opening groove 39 on the driving platform 36. Since a threaded hole matching the threaded screw 37 is provided at the center of the movable ring 44, the threaded screw 37 can drive the movable ring 44 to slide on the driving platform 36 during the rotation process. The direction of movement of the movable ring 44 can be controlled by controlling the rotation direction of the motor 43. When the movable ring 44 moves upward, the sealing plate 26 at the end of the connecting rod 38 can slide upward, so that the activated carbon filter plate 35 on the first support frame 14 can be moved outside the clean water tank 13, which is convenient for replacing the activated carbon filter plate 35 and can ensure the purification effect of the water body.

[0065] When the motor 43 drives the threaded screw 37 to rotate, after the solenoid valve 41 is started by the PLC controller 7, the lubricating oil in the oil storage tank 15 can flow along the oil filling pipe 42 to the threaded hole on the movable ring 44, and can be adsorbed on the outer wall of the threaded screw 37 when the threaded screw 37 slides along the threaded hole, so as to lubricate the threaded screw 37 and the threaded hole on the movable ring 44, and reduce the resistance encountered by the movable ring 44 during the sliding process on the threaded screw 37, which is beneficial to the up and down movement of the sealing plate 26 and the replacement of the activated carbon filter plate 35. The liquid level sensor 40 in the oil storage tank 15 can monitor the lubricating oil level in the oil storage tank 15, so as to facilitate the user to replenish the lubricating oil in time and ensure the lubrication effect.

[0066] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A sulfur autotrophic denitrification treatment device, characterized in that: include: An integrated box (1), wherein a second flip plate (6) is rotatably mounted on the front end of the integrated box (1), a first flip plate (2) is rotatably mounted on the edge of the top end of the integrated box (1), a PLC controller (7) is also fixedly mounted on the front end of the integrated box (1), and a wastewater collection tank (11), an autotrophic denitrification filter tank (12) and a clean water tank (13) are sequentially arranged in the integrated box (1) from left to right; A first connecting frame (18), the first connecting frame (18) is fixedly installed at the bottom end of the autotrophic denitrification filter (12), a plurality of ultrafiltration membrane tubes (30) are evenly connected and arranged at the top of the first connecting frame (18), a second connecting frame (31) is commonly connected and arranged at the top of the plurality of ultrafiltration membrane tubes (30), a circular tube is connected and arranged at the top of the second connecting frame (31), a second supporting frame (32) is fixedly installed above the circular tube and located in the autotrophic denitrification filter (12), and a bacterial seed layer (33) is arranged at the top of the second supporting frame (32); A plate heat exchanger (10), the plate heat exchanger (10) being fixedly mounted on a side wall of a wastewater collection tank (11), the water inlet of the plate heat exchanger (10) being connected to a first water inlet pipe (4), the water outlet of the plate heat exchanger (10) being connected to a conduit (9), and the other end of the conduit (9) being connected to the top of the wastewater collection tank (11), the side wall at the top of the wastewater collection tank (11) being connected to a second water inlet pipe (5), the first water inlet pipe (4) and the second water inlet pipe (5) both extending to the outside of the integrated box (1), and the first water inlet pipe (4) and the second water inlet pipe (5) both being provided with a flow meter (21) electrically connected to a PLC controller (7); A heat exchange pipe (17), wherein the heat exchange pipe (17) is located in the autotrophic denitrification filter (12), and both ends of the heat exchange pipe (17) extend to the plate heat exchanger (10) and are connected to the heat exchange medium outlet and the heat exchange medium inlet of the plate heat exchanger (10). A circulation pump (22) is also fixedly installed on the side wall of the wastewater collection tank (11), and the inlet and outlet of the circulation pump (22) are both connected to the heat exchange pipe (17); A heater (29), wherein the heater (29) is fixedly mounted on the inner wall at the top of the autotrophic denitrification filter (12), the heater (29) is electrically connected to the PLC controller (7), and a temperature sensor (28) electrically connected to the PLC controller (7) is also arranged in the autotrophic denitrification filter (12); A sealing plate (26), the sealing plate (26) being slidably mounted on the top of the clean water tank (13), a first support frame (14) being fixedly mounted on the bottom wall of the clean water tank (13), and an activated carbon filter plate (35) being clamped on the first support frame (14); A driving platform (36) is fixedly mounted on the side wall of the clean water tank (13); a connecting rod (38) is slidably mounted on the driving platform (36); the top end of the connecting rod (38) is fixedly connected to the top wall of the sealing plate (26); and an oil storage tank (15) is also fixedly mounted on the side wall of the connecting rod (38).

2. A sulfur autotrophic denitrification treatment device according to claim 1, characterized in that: The bottom end of the wastewater collection tank (11) is connected to a material guide pipe (20), and an injection pump (19) is connected to the material guide pipe (20), and the outlet of the injection pump (19) is connected to the first connecting frame (18).

3. A sulfur autotrophic denitrification treatment device according to claim 2, characterized in that: A backwash pump (24) electrically connected to the PLC controller (7) is fixedly mounted on the side wall of the autotrophic denitrification filter tank (12); a water suction pipe (25) is arranged at the inlet of the backwash pump (24); the other end of the water suction pipe (25) is connected to the bottom wall of the clean water tank (13); a backwash pipe (34) is arranged at the outlet of the backwash pump (24); the other end of the backwash pipe (34) is connected to the circular pipe at the top end of the second connecting frame (31); a sewage pipe (8) is also arranged at the bottom end of the first connecting frame (18), and the sewage pipe (8) extends to the outside of the integrated box (1).

4. A sulfur autotrophic denitrification treatment device according to claim 3, characterized in that: The top of the autotrophic denitrification filter (12) is also connected to an air outlet pipe (3), the air outlet pipe (3) extends to the outside of the integrated box (1), and a one-way valve (27) is arranged in the air outlet pipe (3).

5. The sulfur autotrophic denitrification treatment device according to claim 1, characterized in that: A movable opening groove (39) is provided on the side wall of the driving platform (36), a threaded screw (37) is rotatably installed in the movable opening groove (39), a movable ring (44) is sleeved on the outer side of the threaded screw (37), a threaded hole matching the threaded screw (37) is provided at the center of the movable ring (44), and the side wall of the movable ring (44) is fixedly connected to the bottom wall of the connecting rod (38).

6. A sulfur autotrophic denitrification treatment device according to claim 5, characterized in that: A motor (43) electrically connected to the PLC controller (7) is fixedly mounted on the side wall at the bottom end of the clear water tank (13), and the output end of the motor (43) is fixedly connected to the bottom wall of the threaded screw (37).

7. The sulfur autotrophic denitrification treatment device according to claim 1, characterized in that: The oil storage tank (15) is filled with lubricating oil, and the bottom end of the oil storage tank (15) is connected to an oil filling pipe (42), and the other end of the oil filling pipe (42) extends to the threaded hole on the movable ring (44).

8. A sulfur autotrophic denitrification treatment device according to claim 7, characterized in that: A liquid level sensor (40) electrically connected to the PLC controller (7) is fixedly mounted on the bottom end of the oil storage tank (15), and a solenoid valve (41) electrically connected to the PLC controller (7) is fixedly mounted on the oil filling pipe (42).

9. The sulfur autotrophic denitrification treatment device according to claim 1, characterized in that: The top of the autotrophic denitrification filter (12) is connected to the top of the clean water tank (13), and the bottom of the clean water tank (13) is also connected to a water outlet pipe (16), and the water outlet pipe (16) extends to the outside of the integrated box (1).

Images