A sulfur autotrophic denitrification nitrogen removal treatment device

Abstract

The application relates to the technical field of sewage treatment, in particular to a sulfur autotrophic denitrification and nitrogen removal treatment device, which comprises an integrated box, a second turnover plate rotatably installed at the front end of the integrated box, a first turnover plate rotatably installed at the edge position of the top end of the integrated box, and a PLC controller fixedly installed at the front end of the integrated box. The multiple treatments of the ultrafiltration membrane tube, the autotrophic denitrifying bacteria and the active carbon filter plate can guarantee the sewage treatment effect, can make the autotrophic denitrifying bacteria in a suitable survival environment, can guarantee the nitrogen removal effect, are energy-saving and environment-friendly, are convenient to use, can conveniently replace the active carbon filter plate, can guarantee the purification effect of water, can reduce the resistance received by the movable ring during the sliding process on the threaded screw rod in the process of replacing the active carbon filter plate, are favorable for the up-and-down movement of the sealing plate, and are favorable for the replacement of the active carbon filter plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to a sulfur autotrophic denitrification device. BACKGROUND

[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 living 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, causing serious environmental problems. Nitrogen pollution mainly comes from: overuse of nitrogen fertilizer; disordered discharge of animal manure and septic tank systems; discharge of wastewater containing nitrate nitrogen and ammonia nitrogen in industrial processes. With the expansion of coal chemical industry and animal husbandry, and the increasing demand for domestic water and landfill, a large amount of nitrogen-containing pollutants are generated and discharged into natural water bodies through surface runoff and infiltration, leading to the accumulation of nitrogen-containing compounds and causing various hazards; inorganic nitrogen can cause water eutrophication; nitrate nitrogen can be converted into nitrite nitrogen, which may cause bladder cancer, ovarian cancer or gastric cancer and other diseases after being ingested by the human body, and high concentrations of nitrate nitrogen and nitrite nitrogen can affect the use of groundwater;

[0003] The nitrogen in refinery wastewater is mainly ammonia nitrogen and nitrate nitrogen. At present, biological nitrification and denitrification is mainly used for removal. Due to the poor biodegradability of refinery wastewater, a large amount of carbon source such as glucose, acetic acid, sodium acetate, etc. needs to be added. On the one hand, the addition of carbon source will increase the operation cost, and on the other hand, it will also cause secondary pollution to the water body. With the improvement of wastewater discharge standard, the existing wastewater treatment facilities have not met the requirements of deep treatment, and face the problem of upgrading and reconstruction.

[0004] The Chinese invention patent document with the publication number CN117486360A discloses a sulfur autotrophic denitrification device and its treatment method. The filter material frame includes a middle tube, a filter material box and an outer cover. The middle tube drives the outer cover to rotate to generate a water flow to flush the inner wall of the tank. The filter material box is hingedly installed near the middle tube of the outer cover side opening. The outer cover drives the filter material box to rotate to filter the wastewater in the tank. The filter material box is internally provided with a filter material unit. Sulfur autotrophic denitrification microbial bacteria form a biofilm on the surface of the filter material unit. When the filter material unit is blocked, the filter material box deforms to change the gap between the filter material units and generate a water flow to flush the filter material unit.

[0005] In the filter material cleaning, the blockage is collected in the slag accumulation mechanism, and the solid blockage is completely discharged, the filter material is cleaned by using a lower flushing water flow through the flushing mode and the optimization of the filter material accumulation state, unnecessary loss of the bacterial membrane caused by high-speed flushing of the water flow is reduced, but in the use process, the temperature of the nitrochlorobenzene wastewater reaches 60-70 DEG C, in order to prevent the high temperature from affecting the survival of the autotrophic denitrifying bacteria, the nitrochlorobenzene wastewater needs to be cooled, the heat after cooling is directly discharged without utilization, which causes waste of energy, and when the activated carbon filter screen 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 be poor, the activated carbon filter screen inside is difficult to replace, and the purification effect of the clean water is affected.

[0006] Therefore, the application provides a sulfur autotrophic denitrification treatment device. SUMMARY

[0007] In view of the defects of the prior art, the application provides a sulfur autotrophic denitrification treatment device.

[0008] To achieve the above object, the application provides the following technical scheme.

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

[0010] The front end of the integrated box is rotatably provided with a second turnover plate, the top end of the integrated box is rotatably provided with a first turnover plate, and the front end of the integrated box is also fixedly provided with a PLC controller; the integrated box is sequentially provided with a wastewater collection tank, an autotrophic denitrification filter tank and a clean water tank from left to right.

[0011] The first connecting frame is fixedly installed at the bottom end of the autotrophic denitrification filter tank, and a plurality of ultrafiltration membrane tubes are uniformly and communicatively arranged at the top end of the first connecting frame; the top ends of the plurality of ultrafiltration membrane tubes are commonly and communicatively provided with a second connecting frame, and a circular pipe is communicatively arranged at the top end of the second connecting frame; a second supporting frame is fixedly installed above the circular pipe and in the autotrophic denitrification filter tank, and a bacterial layer is arranged at the top end of the second supporting frame.

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

[0013] The heat exchange pipe is located in the autotrophic denitrification filter tank, and the two ends of the heat exchange pipe extend to the plate heat exchanger respectively and are communicated with the heat exchange medium outlet and the heat exchange medium inlet of the plate heat exchanger.

[0014] The heater is fixedly installed on the inner wall of the top end of the autotrophic denitrification filter tank, and the heater is electrically connected with the PLC controller.

[0015] The sealing plate is slidably installed at the top end of the clean water tank, the first support frame is fixedly installed on the bottom wall of the clean water tank, and the activated carbon filter plate is clamped on the first support frame.

[0016] The driving table is fixedly installed on the side wall of the clean water tank, the connecting rod is slidably installed on the driving table, the top end of the connecting rod is fixedly connected with the top wall of the sealing plate, and the oil storage tank is fixedly installed on the side wall of the connecting rod.

[0017] Preferably, the bottom end of the wastewater collection tank is communicated with a material guide pipe, the material guide pipe is communicated with a material injection pump, and the outlet of the material injection pump is communicated with the first connecting frame.

[0018] Preferably, the side wall of the autotrophic denitrification filter tank is fixedly installed with a backwashing pump electrically connected with the PLC controller, the inlet of the backwashing pump is communicated with a water suction pipe, the other end of the water suction pipe is communicated with the bottom wall of the clean water tank, the outlet of the backwashing pump is communicated with a backwashing pipe, the other end of the backwashing pipe is communicated with the circular pipe at the top end of the second connecting frame, and the bottom end of the first connecting frame is further communicated with a sewage discharge pipe extending out of the integrated tank.

[0019] Preferably, the top end of the autotrophic denitrification filter tank is further communicated with an air outlet pipe extending out of the integrated tank, and the air outlet pipe is provided with a one-way valve.

[0020] Through the above scheme, 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 at this time, and the preliminarily filtered sewage can flow to the bacterial species layer, and the autotrophic denitrifying bacteria cooperate with elemental sulfur to carry out denitrification treatment, so that the nitrogen ions in the wastewater can be converted into nitrogen gas and discharged from the gas outlet pipe, and the settled clean water can flow into the clean water tank, and after the adsorption and purification treatment of the activated carbon filter plate, the clean water meeting the standard can be taken along the water outlet pipe, and through the multiple treatments of the ultrafiltration membrane tube, the autotrophic denitrifying bacteria and the activated carbon filter plate, the sewage treatment effect can be guaranteed, and when treating nitrochlorobenzene wastewater, since the temperature of the nitrochlorobenzene wastewater reaches 60-70 DEG C, the nitrochlorobenzene wastewater is injected into the plate heat exchanger at this time, and the nitrochlorobenzene wastewater is cooled, and the medium in the heat exchange pipe can be pumped into the plate heat exchanger by the circulating pump to exchange heat with the nitrochlorobenzene wastewater, further transferring the heat of the nitrochlorobenzene wastewater to the autotrophic denitrification filter tank, cooperating with the heater and the temperature sensor in the autotrophic denitrification filter tank, so that the autotrophic denitrifying bacteria can be in a suitable survival 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, and the energy saving and environmental protection are facilitated.

[0021] Preferably, a movable opening slot is formed in the side wall of the driving table, a threaded screw rod is rotatably installed in the movable opening slot, a movable ring is sleeved outside the threaded screw rod, a threaded hole matched with the threaded screw rod is formed in the center of the movable ring, and the side wall of the movable ring is fixedly connected with the bottom wall of the connecting rod.

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

[0023] Through the above scheme, after the motor is started by the PLC controller, the motor can drive the threaded screw rod to rotate in the movable opening slot on the driving table, since the threaded hole matched with the threaded screw rod is formed in the center of the movable ring, the threaded screw rod can drive the movable ring to slide on the driving table during rotation, and the direction 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 out of the clean water tank, facilitating replacement of the activated carbon filter plate, and the purification effect of the water body can be guaranteed.

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

[0025] Preferably, the bottom end of the oil storage tank is fixedly provided with a liquid level sensor electrically connected with the PLC controller, and the oil injection pipe is fixedly provided with an electromagnetic valve electrically connected with the PLC controller.

[0026] Preferably, the top end of the autotrophic denitrification filter is communicated with the top end of the clean water tank, and the bottom end of the clean water tank is further communicated with a water outlet pipe extending out of the integrated tank.

[0027] Through the above scheme, when in use, the lubricating oil in the oil storage tank can flow along the oil injection pipe to the threaded hole on the movable ring, can be adsorbed on the outer wall of the threaded screw rod during the sliding of the threaded screw rod along the threaded hole, can lubricate the threaded screw rod and the threaded hole on the movable ring, can reduce the resistance of the movable ring during sliding on the threaded screw rod, is conducive to the up-down movement of the sealing plate, and is conducive to the replacement of the activated carbon filter plate, and the liquid level sensor in the oil storage tank can monitor the liquid level of the lubricating oil in the oil storage tank, can facilitate the user to supplement the lubricating oil in time, and can guarantee the lubricating effect.

[0028] Compared with the prior art, the present application has the following advantages:

[0029] 1、The ultrafiltration membrane tube between the first connecting frame and the second connecting frame can filter wastewater, and the preliminarily filtered sewage can flow to the strain layer, and the autotrophic denitrifying bacteria cooperate with elemental sulfur to carry out denitrification treatment, so that the nitrogen ions in the wastewater are converted into nitrogen gas and discharged from the air outlet pipe, and the precipitated clean water can flow into the clean water tank, and after the adsorption and purification treatment of the activated carbon filter plate, the qualified clean water can be taken along the water outlet pipe, and through the multiple treatments of the ultrafiltration membrane tube, the autotrophic denitrifying bacteria and the activated carbon filter plate, the sewage treatment effect can be guaranteed, and when treating nitrochlorobenzene wastewater, since the temperature of the nitrochlorobenzene wastewater reaches 60-70 DEG C, the nitrochlorobenzene wastewater is injected into the plate heat exchanger at this time, the nitrochlorobenzene wastewater is cooled, and the medium in the heat exchange pipe can be pumped into the plate heat exchanger by the circulating pump to exchange heat with the nitrochlorobenzene wastewater, further transferring the heat of the nitrochlorobenzene wastewater to the autotrophic denitrification filter, cooperating with the heater and the temperature sensor in the autotrophic denitrification filter, the autotrophic denitrifying bacteria can be in a suitable survival 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 the use is facilitated.

[0030] 2、The motor can drive the threaded lead screw to rotate in the movable opening groove on the driving table after the PLC controller starts the motor, the threaded hole matched with the threaded lead screw is arranged in the center of the movable ring, the threaded lead screw can drive the movable ring to slide on the driving table in the rotating process, the direction of the movable ring movement can be controlled by controlling the rotating 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 move out of the clean water pool, the activated carbon filter plate can be replaced conveniently, and the purification effect of the water body can be ensured.

[0031] 3、The lubricating oil in the oil storage tank can flow along the oil injection pipe to the threaded hole on the movable ring after the electromagnetic valve is started by the PLC controller, can be adsorbed on the outer wall of the threaded lead screw in the process of sliding along the threaded hole, can lubricate the threaded lead screw and the threaded hole on the movable ring, can reduce the resistance of the movable ring sliding on the threaded lead screw, is favorable for the up and down movement of the sealing plate, is favorable for the replacement of the activated carbon filter plate, and the liquid level sensor in the oil storage tank can monitor the lubricating oil level in the oil storage tank, can conveniently supplement the lubricating oil in time, and can ensure the lubricating effect. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is the overall structure schematic view of a sulfur autotrophic denitrification denitrification treatment device in the embodiment of the application;

[0033] Figure 2 It is the cross-sectional structure schematic view of the integrated box.

[0034] Figure 3 It is the structure schematic view in the integrated box in the embodiment of the application;

[0035] Figure 4 It is the formal cross-sectional structure schematic view of the autotrophic denitrification filter tank in the embodiment of the application;

[0036] Figure 5 It is the structure schematic view of the circulating pump two ends in the embodiment of the application;

[0037] Figure 6 It is the side view cross-sectional structure schematic view of the autotrophic denitrification filter tank in the embodiment of the application;

[0038] Figure 7 It is the formal cross-sectional structure schematic view of the clean water pool in the embodiment of the application;

[0039] Figure 8 It is the structure schematic view of the motor output end in the embodiment of the application.

[0040] In the figure: 1, integrated tank; 2, first turnover plate; 3, air outlet pipe; 4, first water inlet pipe; 5, second water inlet pipe; 6, second turnover plate; 7, PLC controller; 8, blowdown pipe; 9, guide pipe; 10, plate heat exchanger; 11, wastewater collection tank; 12, autotrophic denitrification filter tank; 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, material injection pump; 20, material guide pipe; 21, flow meter; 22, circulating pump; 24, backwashing pump; 25, water suction pipe; 26, sealing plate; 27, one-way valve; 28, temperature sensor; 29, heater; 30, ultrafiltration membrane pipe; 31, second connecting frame; 32, second support frame; 33, strain layer; 34, backwashing pipe; 35, activated carbon filter plate; 36, driving table; 37, threaded screw; 38, connecting rod; 39, movable open slot; 40, liquid level sensor; 41, electromagnetic valve; 42, oil injection pipe; 43, motor; 44, movable ring. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0042] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the drawings in the specification and the specific embodiments.

[0043] Embodiment: Please refer to Figures 1 to 8 A sulfur autotrophic denitrification device, comprising:

[0044] The integrated tank 1 is provided with the second turnover plate 6 rotatably installed at the front end of the integrated tank 1, and the first turnover plate 2 rotatably installed at the edge position of the top end of the integrated tank 1. The PLC controller 7 is fixedly installed at the front end of the integrated tank 1. The wastewater collection tank 11, the autotrophic denitrification filter tank 12, and the clean water tank 13 are sequentially arranged in the integrated tank 1 from left to right.

[0045] The first connecting frame 18 is fixedly installed at the bottom end of the autotrophic denitrification filter tank 12. The top end of the first connecting frame 18 is uniformly and communicatively provided with a plurality of ultrafiltration membrane pipes 30. The top ends of the plurality of ultrafiltration membrane pipes 30 are commonly and communicatively provided with the second connecting frame 31. The top end of the second connecting frame 31 is communicatively provided with a circular pipe. The second support frame 32 is fixedly installed above the circular pipe and in the autotrophic denitrification filter tank 12. The top end of the second support frame 32 is provided with the strain layer 33.

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

[0047] The heat exchange pipe 17 is located in the autotrophic denitrification filter tank 12, the two ends of the heat exchange pipe 17 extend to the plate heat exchanger 10 and are communicated with the heat exchange medium outlet and the heat exchange medium inlet of the plate heat exchanger 10, and the side wall of the wastewater collection tank 11 is also fixedly installed with a circulating pump 22, the inlet and outlet of the circulating pump 22 are communicated with the heat exchange pipe 17;

[0048] The heater 29 is fixedly installed on the inner wall of the top end of the autotrophic denitrification filter tank 12, the heater 29 is electrically connected with the PLC controller 7, and the autotrophic denitrification filter tank 12 is also provided with a temperature sensor 28 electrically connected with the PLC controller 7;

[0049] The sealing plate 26 is slidably installed on the top end of the clean water tank 13, the bottom wall of the clean water tank 13 is fixedly installed with a first support frame 14, and the first support frame 14 is clamped with an activated carbon filter plate 35;

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

[0051] The bottom end of the wastewater collection tank 11 is communicated with a material guide pipe 20, the material guide pipe 20 is communicated with a material injection pump 19, and the outlet of the material injection pump 19 is communicated with the first connecting frame 18.

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

[0053] The top end of the autotrophic denitrification filter tank 12 is also communicated with an air outlet pipe 3, the air outlet pipe 3 extends to the outside of the integrated tank 1, and the air outlet pipe 3 is provided with a one-way valve 27.

[0054] In use, when the sewage flows into the autotrophic denitrification filter 12 from the wastewater collection tank 11 along the guide pipe 20, the ultrafiltration membrane tube 30 between the first connecting frame 18 and the second connecting frame 31 can filter the wastewater, and the preliminarily filtered sewage can flow to the bacterial strain layer 33, and the autotrophic denitrifying bacteria cooperate with sulfur elements to perform denitrification treatment, so that the nitrogen ions in the wastewater are converted into nitrogen gas and discharged from the gas outlet pipe 3, and the precipitated clean water 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 meeting the standard can be taken along the water outlet pipe 16. Through the multiple treatments of the ultrafiltration membrane tube 30, the autotrophic denitrifying bacteria and the activated carbon filter plate 35, the sewage treatment effect can be guaranteed, and when treating nitrochlorobenzene wastewater, since the temperature of the nitrochlorobenzene wastewater reaches 60-70℃, the nitrochlorobenzene wastewater is injected into the plate heat exchanger 10 to cool the nitrochlorobenzene wastewater, and the medium in the heat exchange pipe 17 is pumped into the plate heat exchanger 10 by the circulating pump 22 to exchange heat with the nitrochlorobenzene wastewater, further transferring the heat of the nitrochlorobenzene wastewater to the autotrophic denitrification filter 12, cooperating with the heater 29 and the temperature sensor 28 in the autotrophic denitrification filter 12, so that the autotrophic denitrifying bacteria are in a suitable survival environment, the denitrification effect is guaranteed, the heat of the nitrochlorobenzene wastewater is utilized, the energy consumption of the heater 29 is reduced, energy saving and environmental protection are achieved, and the use is facilitated.

[0055] As an embodiment of the present application, referring to Figures 7-8 The side wall of the driving table 36 is provided with a movable opening slot 39, a threaded screw rod 37 is rotatably installed in the movable opening slot 39, a movable ring 44 is sleeved outside the threaded screw rod 37, a threaded hole matched with the threaded screw rod 37 is formed in the center of the movable ring 44, and the side wall of the movable ring 44 is fixedly connected with the bottom wall of the connecting rod 38.

[0056] A motor 43 electrically connected with the PLC controller 7 is fixedly installed on the side wall of the bottom end of the clean water tank 13, and the output end of the motor 43 is fixedly connected with the bottom wall of the threaded screw rod 37.

[0057] In the embodiment, when in use, the motor 43 can drive the threaded screw rod 37 to rotate in the movable opening slot 39 on the driving table 36 after the PLC controller 7 starts the motor 43. Since the movable ring 44 is provided with a threaded hole at the center which is matched with the threaded screw rod 37, the threaded screw rod 37 can drive the movable ring 44 to slide on the driving table 36 during the rotation. The direction 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 move out of the clean water tank 13, which facilitates the replacement of the activated carbon filter plate 35 and guarantees the purification effect of the water body.

[0058] As an embodiment of the present application, refer to Figures 7-8 The oil tank 15 is filled with lubricating oil, and the bottom end of the oil tank 15 is provided with an oil injection pipe 42 which extends to the threaded hole on the movable ring 44.

[0059] The bottom end of the oil tank 15 is fixedly installed with a liquid level sensor 40 which is electrically connected with the PLC controller 7, and the oil injection pipe 42 is fixedly installed with an electromagnetic valve 41 which is electrically connected with the PLC controller 7.

[0060] The top end of the autotrophic denitrification filter tank 12 is communicated with the top end of the clean water tank 13, and the bottom end of the clean water tank 13 is further provided with a water outlet pipe 16 which extends out of the integrated tank 1.

[0061] In the embodiment, after the PLC controller 7 starts the electromagnetic valve 41, the lubricating oil in the oil tank 15 can flow along the oil injection pipe 42 to the threaded hole on the movable ring 44, can be adsorbed on the outer wall of the threaded screw rod 37 during the sliding of the threaded screw rod 37 along the threaded hole, can lubricate the threaded screw rod 37 and the threaded hole on the movable ring 44, can reduce the resistance of the movable ring 44 during the sliding on the threaded screw rod 37, is conducive to the up and down movement of the sealing plate 26, is conducive to the replacement of the activated carbon filter plate 35, and the liquid level sensor 40 in the oil tank 15 can monitor the liquid level of the lubricating oil in the oil tank 15, can facilitate the user to supplement the lubricating oil in time, and can guarantee the lubricating effect.

[0062] Working principle: in use, through the second water inlet pipe 5, biochemical tail water and other sewage is directly injected into the wastewater collection tank 11, through the first water inlet pipe 4, strong oxidizing wastewater such as nitrochlorobenzene wastewater and other high temperature wastewater is introduced into the plate heat exchanger 10, and after cooling, it is injected into the wastewater collection tank 11, and the flow meter 21 can monitor the sewage injected into the wastewater collection tank 11, then start the feeding pump 19, the sewage flows into the autotrophic denitrification filter tank 12 from the wastewater collection tank 11 along the guide pipe 20, at this time, the ultrafiltration membrane tube 30 between the first connecting frame 18 and the second connecting frame 31 can filter the wastewater, and the preliminarily filtered sewage can flow to the bacterial strain layer 33, and through the autotrophic denitrifying bacteria cooperating with elemental sulfur, the nitrogen ions in the wastewater can be converted into nitrogen gas and discharged from the gas outlet pipe 3, and the precipitated clean water can flow into the clean water tank 13, after the adsorption and purification treatment of the activated carbon filter plate 35, the clean water can be taken out along the water outlet pipe 16, and through the multiple treatment of the ultrafiltration membrane tube 30, autotrophic denitrifying bacteria and activated carbon filter plate 35, the sewage treatment effect can be guaranteed;

[0063] And when treating nitrochlorobenzene wastewater, since the temperature of nitrochlorobenzene wastewater reaches 60-70℃, at this time, the nitrochlorobenzene wastewater is injected into the plate heat exchanger 10 to cool the nitrochlorobenzene wastewater, and the medium in the heat exchange pipe 17 can be pumped into the plate heat exchanger 10 by the circulating pump 22 to exchange heat with the nitrochlorobenzene wastewater, further transferring the heat of the nitrochlorobenzene wastewater to the autotrophic denitrification filter tank 12, cooperating with the heater 29 and temperature sensor 28 in the autotrophic denitrification filter tank 12, the autotrophic denitrifying bacteria can be in a suitable survival environment, the denitrification effect can be guaranteed, the heat of the nitrochlorobenzene wastewater can be utilized, the energy consumption of the heater 29 can be reduced, energy saving and environmental protection, and the use is convenient, and through the backwashing pump 24, the clean water in the clean water tank 13 can be injected into the second connecting frame 31 along the backwashing pipe 34, and further discharged through the blowdown pipe 8, which can backwash the ultrafiltration membrane tube 30, and the filtration effect of the ultrafiltration membrane tube 30 can be guaranteed;

[0064] In use, when the first flip plate 2 on the integrated box 1 is opened, the motor 43 is started through the PLC controller 7, the motor 43 can drive the threaded screw rod 37 to rotate in the movable opening slot 39 on the driving table 36, since the center of the movable ring 44 is provided with a threaded hole matched with the threaded screw rod 37, the threaded screw rod 37 can drive the movable ring 44 to slide on the driving table 36 during rotation, by controlling the rotating direction of the motor 43, the moving direction of the movable ring 44 can be controlled, 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 supporting frame 14 can move out of the clean water tank 13, which is convenient for replacing the activated carbon filter plate 35, and the water purification effect can be guaranteed;

[0065] In the process of driving the threaded screw rod 37 by the motor 43, the lubricating oil in the oil storage tank 15 can flow along the oil injection pipe 42 to the threaded hole on the movable ring 44, can be adsorbed on the outer wall of the threaded screw rod 37 in the process of sliding along the threaded hole, can lubricate the threaded screw rod 37 and the threaded hole on the movable ring 44, can reduce the resistance of the movable ring 44 in the process of sliding on the threaded screw rod 37, is conducive to the up and down movement of the sealing plate 26, is conducive to the replacement of the activated carbon filter plate 35, and the liquid level sensor 40 in the oil storage tank 15 can monitor the lubricating oil level in the oil storage tank 15, can conveniently supplement the lubricating oil for the user in time, and can guarantee the lubricating effect.

[0066] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed methods and technical contents without departing from the scope of the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A sulfur autotrophic denitrification treatment device, characterized in that, include: An integrated box (1) is provided with a second flip plate (6) rotatably installed at the front end of the integrated box (1), and a first flip plate (2) rotatably installed at the edge of the top of the integrated box (1). A PLC controller (7) is also fixedly installed at the front end of the integrated box (1). From left to right, the integrated box (1) is provided with a wastewater collection tank (11), an autotrophic denitrification filter (12), and a clear water tank (13). The top of the autotrophic denitrification filter (12) is connected to the top of the clear water tank (13). The bottom of the clear water tank (13) is also connected to an outlet pipe (16), and the outlet pipe (16) extends to the outside of the integrated box (1). The first connecting frame (18) is fixedly installed at the bottom of the autotrophic denitrification filter (12). Multiple ultrafiltration membrane tubes (30) are uniformly connected to the top of the first connecting frame (18). The tops of the multiple ultrafiltration membrane tubes (30) are connected to a second connecting frame (31). A round pipe is connected to the top of the second connecting frame (31). A second support frame (32) is fixedly installed above the round pipe and inside the autotrophic denitrification filter (12). A bacterial layer (33) is provided at the top of the second support frame (32). A feed pipe (20) is connected to the bottom of the wastewater collection tank (11). A feed pump (19) is connected to the feed pipe (20). The outlet of the feed pump (19) is connected to the first connecting frame (18). A plate heat exchanger (10) is fixedly installed on the side wall of a wastewater collection tank (11). The inlet of the plate heat exchanger (10) is connected to a first inlet pipe (4), and the 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). A second inlet pipe (5) is also connected to the side wall at the top of the wastewater collection tank (11). Both the first inlet pipe (4) and the second inlet pipe (5) extend to the outside of the integrated box (1). Both the first inlet pipe (4) and the second inlet pipe (5) are equipped with flow meters (21) that are electrically connected to the PLC controller (7). Heat exchange tube (17) is located in the autotrophic denitrification filter (12). Both ends of the heat exchange tube (17) extend to the plate heat exchanger (10) and are connected to the heat exchange medium outlet and 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 connected to the heat exchange tube (17) to inject nitrochlorobenzene wastewater into the plate heat exchanger (10) to cool the nitrochlorobenzene wastewater. 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, so that the heat of the nitrochlorobenzene wastewater is transferred to the autotrophic denitrification filter (12). Heater (29), the heater (29) is fixedly installed 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 the autotrophic denitrification filter (12) is also equipped with a temperature sensor (28) electrically connected to the PLC controller (7). A sealing plate (26) is slidably installed on the top of the clear water tank (13). A first support frame (14) is fixedly installed on the bottom wall of the clear water tank (13). An activated carbon filter plate (35) is clamped on the first support frame (14). A drive platform (36) is fixedly installed on the side wall of the clear water tank (13). A connecting rod (38) is slidably installed on the drive platform (36). The top end of the connecting rod (38) is fixedly connected to the top wall of the sealing plate (26). An oil storage tank (15) is also fixedly installed on the side wall of the connecting rod (38). A movable opening groove (39) is provided on the side wall of the drive platform (36). A threaded screw is rotatably installed in the movable opening groove (39). 37), a movable ring (44) is sleeved on the outer side of the threaded screw (37), and a threaded hole adapted to the threaded screw (37) is opened 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). The oil tank (15) is filled with lubricating oil, and an oil injection pipe (42) is connected to the bottom end of the oil tank (15). The other end of the oil injection pipe (42) extends to the threaded hole on the movable ring (44).

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

3. The sulfur autotrophic denitrification treatment device according to claim 2, characterized in that: 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), and a one-way valve (27) is installed inside the air outlet pipe (3).

4. The sulfur autotrophic denitrification treatment device according to claim 1, characterized in that: A motor (43) electrically connected to a PLC controller (7) is fixedly installed on the side wall at the bottom 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).

5. The sulfur autotrophic denitrification treatment device according to claim 1, characterized in that: A liquid level sensor (40) electrically connected to the PLC controller (7) is fixedly installed at the bottom of the oil storage tank (15), and a solenoid valve (41) electrically connected to the PLC controller (7) is fixedly installed on the oil injection pipe (42).

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