A wastewater deammoniation treatment system based on deammoniation membrane

Abstract

The present application discloses a wastewater deamination treatment system based on a deamination membrane, which includes a microfiltration system, a dosing box, a membrane deamination system device, an ammonia resource system device and a heat exchange component, wherein the membrane deamination system device includes a sealed heating circulating water tank, a first filter and a PTFE deamination membrane component; a stirring mechanism and a measuring mechanism are arranged in the sealed heating circulating water tank, and the dosing box is connected with an adjustment mechanism; the stirring mechanism includes a bracket, a support box, a locking component, a stirring rod, a plurality of stirring blades, a power component and a heating component; the support box floats on the liquid surface in the sealed heating circulating water tank, and the adjustment mechanism is used to drive the stirring rod to rotate. The present application has the effect of uniformly adjusting the pH value of wastewater in the sealed heating circulating water tank.

Description

Technical Field

[0001] The present application relates to the technical field of ammonia nitrogen wastewater treatment, and in particular to a wastewater deammonification treatment system based on a deammonification membrane. Background Art

[0002] At present, the general formation of ammonia nitrogen wastewater is caused by the coexistence of ammonia water and inorganic ammonia. There are two main components, one is ammonia nitrogen formed by ammonia water, and the other is ammonia nitrogen formed by inorganic ammonia, mainly ammonium sulfate, ammonium chloride, etc. At present, the main technologies for treating high-concentration ammonia nitrogen wastewater at home and abroad include air stripping, zeolite deamination, chemical oxidation, chemical oxidation, powdered activated carbon removal and biological denitrification. Various methods have certain treatment effects on high-concentration wastewater, but they all have certain disadvantages. With the advancement of membrane technology, the application advantages of membrane treatment technology in the field of environment are becoming increasingly apparent, and membrane deamination technology for ammonia nitrogen wastewater is also a hot spot for research and application. At present, commonly used membrane deamination technologies include vacuum membrane deamination, membrane absorption deamination, membrane bioreactor deamination, etc.

[0003] In the related art, a Chinese patent with a patent publication number of CN106045175A proposes an ammonia nitrogen wastewater treatment system and process based on a PTFE deamination membrane assembly, the system includes a microfiltration system, a dosing box, a membrane deamination system device, an ammonia resource system device and a heat exchange component; the process is: remove suspended matter in ammonia nitrogen wastewater through a microfiltration system; adjust the pH value of wastewater with caustic soda solution; heat wastewater with a sealed heating circulating water tank and separate ammonia; denitrify wastewater with a PTFE deamination membrane assembly and then discharge it; finally, the ammonia resource system device converts the collected ammonia into ammonium sulfate solution to achieve ammonia nitrogen resource conversion. The above technical scheme greatly improves the treatment capacity of industrial wastewater and domestic sewage, not only has an efficient deamination purification effect for high-concentration ammonia nitrogen wastewater, but also has a very high resource conversion rate for ammonia nitrogen waste, thereby promoting the comprehensive development of my country's petrochemical industry, and is of great significance to the treatment of water pollution and environmental pollution caused by wastewater discharge in my country.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: in the process of adjusting the pH value of wastewater, in order to accelerate the pH value in the wastewater to reach the set value, the wastewater is currently stirred, but the pH value in the wastewater is not detected at different positions. If the pH value in the wastewater is uneven, it will affect the heating of the wastewater and cause the nitrogen separation work. Summary of the invention

[0005] In order to improve the problem of uneven pH value of wastewater, the present application provides a wastewater deammoniation treatment system based on a deammoniation membrane.

[0006] The present application provides a wastewater deammoniation treatment system based on a deammonification membrane, which adopts the following technical solutions:

[0007] A wastewater deamination treatment system based on a deamination membrane, comprising a microfiltration system, a dosing box, a membrane deamination system device, an ammonia resource system device and a heat exchange component, wherein the membrane deamination system device comprises a sealed heating circulating water tank, a first filter and a PTFE deamination membrane component, the dosing box adjusts the pH value of the wastewater in the sealed heating circulating water tank; a stirring mechanism and a measuring mechanism for measuring the pH value are arranged in the sealed heating circulating water tank, and the dosing box is connected to a regulating mechanism for providing power for the stirring mechanism to rotate;

[0008] The stirring mechanism includes a bracket fixed on the top of the sealed heating circulating water tank, a supporting box movably arranged on the bracket, a locking assembly for locking the supporting box, a stirring rod rotatably arranged at the bottom of the supporting box, a plurality of stirring blades fixed on the outer peripheral wall of the stirring rod, a power assembly for providing power for the movement of the supporting box, and a heating assembly with a heating function; the supporting box floats on the liquid surface in the sealed heating circulating water tank, and the adjusting mechanism is used to drive the stirring rod to rotate.

[0009] Optionally, the regulating mechanism includes a regulating pump connected to the outlet of the dosing box, a regulating tube connected to the output end of the regulating pump, an regulating head connected to the other end of the regulating tube, a plurality of regulating plates and a plurality of nozzles, wherein the plurality of regulating plates are evenly spaced and distributed at the upper end of the stirring rod and are located below the support box, the top of the stirring rod penetrates into the interior of the support box, a water inlet is arranged in the stirring rod, a plurality of regulating plates are each provided with a water spray channel, a plurality of water spray channels are each connected to the water inlet, the top of the water inlet is an opening, the regulating head is rotatably connected to the opening at the top end of the stirring rod and the regulating head is fixedly connected to the support box, the water spray channel is used to supply liquid to the nozzle, and a plurality of nozzles are respectively arranged on the same side of a plurality of regulating plates.

[0010] Optionally, the measuring mechanism includes a measuring cylinder, a measuring column slidably adapted in the measuring cylinder, a reciprocating assembly for realizing reciprocating motion of the measuring column, a pH sensor fixed under the measuring column, and a sealing plug fixed at the bottom end of the pH sensor. Both ends of the measuring cylinder are opened, the measuring cylinder is connected to the water inlet in the stirring rod, and a first solenoid valve is provided at the connection position between the measuring cylinder and the stirring rod. When the sealing plug is located at the opening at the bottom end of the measuring cylinder, the first solenoid valve is in a closed state.

[0011] Optionally, the reciprocating assembly includes a slider, a spring and a driving unit that drives the slider to move, the slider is fixedly connected to the side wall of the measuring column, the side wall of the measuring cylinder is provided with a sliding groove for sliding of the slider, the length direction of the sliding groove is arranged along the length direction of the measuring column, the two ends of the spring are respectively fixedly connected to either end of the slider and the inner wall of the corresponding end of the sliding groove, and the sliding groove is always blocked during the sliding process of the measuring column.

[0012] Optionally, the driving part includes a driving cavity, a cam rotatably disposed in the driving cavity, a driving motor for driving the cam to rotate, and a driving block fixedly connected to a side of the slider away from the measuring column, the driving block extends into the driving cavity and slides, and the protrusion of the cam abuts against the driving block.

[0013] Optionally, the power assembly is set to two, and the power assembly includes a power box, a water spray head, a water pump and a liquid level sensor. The two power boxes are respectively installed on the two opposite side walls of the support box and distributed along the movement direction of the support box. The water spray head is installed on the outer side wall of the power box, and the two water spray heads are arranged in opposite directions. The water pump is arranged in the power box and presses the solution to the spray head. The power box is provided with a water inlet located below the liquid level, and the water inlet is provided with a second solenoid valve. The liquid level sensor is arranged in the power box and is used to control the operation of the second solenoid valve.

[0014] Optionally, the heating assembly includes a heating block fixed on any one of the stirring blades, a heating tube movably arranged in the heating block, an insulation sleeve for insulating the heating tube, an insulation block fixed at the end of the heating tube, and a control unit for controlling the heating time, the heating block is arranged as an inner cavity, the heating tube is filled with phase change material, the insulation sleeve is fixed in the inner cavity of the heating block, a reciprocating part for controlling the movement of the heating tube in the insulation sleeve is also arranged in the heating block, the insulation sleeve is provided with an insulation hole at an end away from the reciprocating part, and the insulation block is adapted to the insulation hole.

[0015] Optionally, the control unit includes two water level sensors, a control frame rotatably arranged in the inner cavity of the heating block, two control boxes fixed on the control frame, a control tube for connecting the two control boxes, a control frame fixed in the heating block, an extrusion rod elastically arranged in the control frame, and a transmission member for adjusting the flow of the control tube. A control motor for driving the control frame to rotate is arranged in the heating block. The two water level sensors are respectively arranged in the two control boxes. The control tube is arranged as a hose. The control tube is located on the movement path of the extrusion rod and the other side of the control tube is in contact with the wall of the control frame. The heating cylinder pushes the extrusion rod, and the other end of the extrusion rod squeezes the control tube until it is tightly against the control frame. The transmission member is located between the heating cylinder and the extrusion rod.

[0016] Optionally, the transmission member includes multiple iron balls of different sizes, the control frame is provided with a transmission plate for lifting, the transmission plate is provided with multiple first electromagnets for respectively adsorbing the multiple iron balls, the heating block is installed with an arc plate for placing the iron balls between the heating cylinder and the extrusion rod, the length direction of the arc plate is consistent with the movement direction of the extrusion rod, and the largest size of the iron ball is slidably adapted on the arc plate.

[0017] Optionally, the locking assembly includes a sliding rod fixed on the bracket, a moving block slidably sleeved outside the sliding rod, and a second electromagnet fixed on the moving block, the moving block is fixedly connected to the support box, and the second electromagnet is adsorbed on the bracket.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] 1. When the dosing box starts to adjust the pH value in the sealed heating circulating water tank, the alkaline solution is pressed into the water inlet of the stirring rod through the regulating pump. After the alkaline solution in the water inlet enters the water spraying channel, the alkaline solution is sprayed into the sealed heating circulating water tank under the action of the nozzle. Driven by the reaction force between the alkaline solution sprayed from the nozzle and the wastewater in the sealed heating circulating water tank, the four regulating plates begin to rotate, thereby driving the stirring rod to rotate, thereby reducing the driving of the stirring rod and achieving the effect of spraying the alkaline solution into the sealed heating circulating water tank; the pH value of the wastewater at the center of the sealed heating circulating water tank is adjusted the fastest. In order to ensure that the pH value of the wastewater in the sealed heating circulating water tank is evenly adjusted, it is necessary to check whether the pH value of the wastewater near the side wall of the sealed heating circulating water tank has been adjusted;

[0020] 2. Under the action of the corresponding water spray head and water pump, the support box moves to the corresponding side wall position of the sealed heating circulating water tank, the first solenoid valve is opened and the regulating pump continues to flow toward the alkaline solution in the water inlet, the spray head is closed, and the alkaline solution gradually flows toward the measuring cylinder and squeezes the measuring column. In this process, the alkaline solution will not flow into the wastewater from the gap between the measuring column and the measuring cylinder. As the alkaline solution squeezes the measuring column, the sealing plug and the pH sensor begin to move toward the wastewater, the spring is continuously stretched, and when the pH sensor completely moves into the wastewater and detects the pH value in the wastewater, if the pH value is also close to the set value of 10-12, it proves that the pH adjustment work of the wastewater in the sealed heating circulating water tank is completed. If the pH value is still lower than the set value, it is necessary to continue to adjust the pH value of the wastewater;

[0021] 3. The reciprocating part controls the heating cylinder to slide out of the insulation sleeve and plug into the heating hole. The phase change material in the heating cylinder begins to exchange heat with the local wastewater. The pH sensor continues to detect the wastewater at this location. If the pH value of the local wastewater can reach the set value after heating, the pH adjustment work is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0023] Figure 2 is a schematic diagram of a stirring rod, an adjusting plate and a nozzle in an embodiment of the present application;

[0024] Figure 3 yes Figure 1 A magnified schematic diagram of part A;

[0025] Figure 4 Schematic diagram of the heating component in the embodiment of the present application.

[0026] Figure numerals: 1, sealed heating circulation water tank; 2, dosing box; 3, bracket; 4, support box; 5, stirring rod; 6, stirring blade; 7, regulating pump; 8, regulating pipe; 9, regulating head; 10, spray head; 11, water inlet; 12, water spray channel; 13, measuring cylinder; 14, measuring column; 15, pH sensor; 16, sealing plug; 17, first solenoid valve; 18, slider; 19, slide; 20, driving chamber; 21, cam; 22, driving motor; 23, driving block; 24, power box; 25, spray head; 26, Water pump; 27, liquid level sensor; 28, water inlet; 29, second solenoid valve; 30, heating block; 31, heating tube; 32, insulation sleeve; 33, insulation block; 34, reciprocating member; 35, insulation hole; 36, control frame; 37, water level sensor; 38, control box; 39, control tube; 40, control frame; 41, extrusion rod; 42, control motor; 43, iron ball; 44, transmission plate; 45, first electromagnet; 46, arc plate; 47, slide rod; 48, moving block; 49, second electromagnet; 50, adjustment sheet. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-4 This application is described in further detail.

[0028] The present application embodiment discloses a wastewater deammoniation treatment system based on a deammonification membrane. Figure 1 A wastewater deamination treatment system based on a deamination membrane comprises a microfiltration system, a dosing box 2, a membrane deamination system device, an ammonia resource system device and a heat exchange component. The membrane deamination system device comprises a sealed heating circulating water tank 1, a first filter and a PTFE deamination membrane component. The ammonia resource system device comprises a dilute acid circulator and a second filter. Wastewater enters the microfiltration system to pre-treat the wastewater and remove some impurities in the wastewater. The heat exchange component pre-heats the wastewater. NaOH solution is added to the dosing box 2 for pH adjustment. The wastewater after pH adjustment is sent to the sealed heating circulating water tank 1. The sealed heating circulating water tank 1 is used to heat the wastewater. The ammonium ions in the wastewater are converted into ammonia due to the increase in temperature to form an ammonia wastewater mixture; the ammonia wastewater mixture after heating is sent to the PTFE deamination membrane component after passing through the first filter, and the TFE deamination membrane component separates the ammonia in the ammonia wastewater mixture; the dilute acid circulation pool absorbs the cooled ammonia, and the ammonia reacts with the dilute sulfuric acid in the dilute acid circulation pool to be converted into an ammonium sulfate solution.

[0029] Reference Figure 1 and Figure 2, a stirring mechanism and a measuring mechanism for measuring the pH value are arranged in the dosing box 2, the dosing box 2 is connected to an adjusting mechanism for providing power for the stirring mechanism to rotate, in this embodiment, the pH value adjusted by the dosing box 2 for the sealed heating circulating water tank 1 is 10-12, the stirring mechanism comprises a bracket 3 fixed on the top of the sealed heating circulating water tank 1, a support box 4 movably arranged on the bracket 3, a locking assembly for locking the support box 4, a stirring rod 5 rotatably arranged at the bottom of the support box 4, a plurality of stirring blades 6 fixed on the outer peripheral wall of the stirring rod 5, a power assembly for providing power for the movement of the support box 4, and a heating assembly with a heating function; the support box 4 is made of a material with large buoyancy, the interior of the support box 4 is a cavity arrangement and the top is an opening, the stirring rod 5 is vertically arranged, and the stirring rod 5 is rotatably connected to the support box 4 through a bearing, and a plurality of stirring blades 6 are evenly distributed outside the stirring rod 5, in this embodiment, the support box 4 can move in one direction in the sealed heating circulating water tank 1, or can move in two mutually perpendicular directions, because the principles of movement in one direction and movement in two directions are similar, only the movement of the support box 4 in one direction is described here.

[0030] Reference Figure 1 and Figure 2 The locking assembly includes a slide bar 47 fixed on the bracket 3, a moving block 48 slidingly sleeved outside the slide bar 47, and a second electromagnet 49 fixed on the moving block 48. In this embodiment, the slide bar 47 is arranged along the length direction of the support box 4, and the moving block 48 is fixedly connected to the support box 4 through four connecting rods. The second electromagnet 49 is adsorbed on the bracket 3, and the second electromagnet 49 is energized and magnetized and demagnetized when the power assembly pushes the support box 4. When the support box 4 moves to the specified position, the second electromagnet 49 is energized and magnetized and adsorbed on the bracket 3, so that the position of the support box 4 can be locked; the power assembly is set to two, and the power assembly includes a power box 24, sprinkler head 25, water pump 26 and liquid level sensor 27, the two power boxes 24 are respectively installed on the two opposite side walls of the support box 4 and are distributed along the movement direction of the support box 4, that is, the distribution direction of the two power boxes 24 is along the length direction of the slide bar 47, the power box 24 is a cavity setting and a closed setting, the power box 24 is also made of a material with large buoyancy to reduce water resistance, and because the liquid level of the wastewater in the sealed heating circulating water tank 1 is a fixed value, when the support box 4 and the power box 24 are placed in the wastewater in the sealed heating circulating water tank 1, the relative distance between the moving block 48 and the support box 4 is the position where the support box 4 automatically floats on the wastewater, thereby reducing the influence of water resistance on the movement of the support box 4.

[0031] Reference Figure 1 and Figure 2The water spray head 25 is installed on the outer side wall of the power box 24, and the two water spray heads 25 spray water in opposite directions. The water pump 26 is installed in the power box 24. A water inlet 28 is provided at the bottom of the side wall of the power box 24. The water inlet 28 is located below the liquid level of the sealed heating circulation water tank 1. A second solenoid valve 29 is provided at the water inlet 28. A liquid level sensor 27 is provided in the power box 24 and is used to control the operation of the second solenoid valve 29. The liquid level sensor 27 is used to control the liquid level in the power box 24. The liquid level sensor 27 and the second solenoid valve 29 are connected by a PLC controller. To ensure the normal operation of the water spray head 25, in this embodiment, the water spray head 25 is also located below the liquid level, and the support box starts to move through the reaction force; if the support box needs to move toward one side of the sealed heating circulating water tank 1, the water spray head 25 on the opposite side starts to spray liquid, and under the reaction force of the sprayed liquid and the liquid in the sealed heating circulating water tank 1, the moving block 48 moves on the slide bar 47, thereby achieving the effect of driving the support box, until the support box moves to the specified position, the second electromagnet 49 is adsorbed with the bracket 3, and the effect of locking the support box is completed.

[0032] Reference Figure 1 and Figure 2 The regulating mechanism includes a regulating pump 7 connected to the outlet of the dosing box 2, a regulating pipe 8 connected to the output end of the regulating pump 7, a regulating head 9 connected to the other end of the regulating pipe 8, a plurality of regulating plates 50 and a plurality of nozzles 10. The dosing box 2 is placed in an external environment. The regulating pipe 8 is a hose and is long enough to ensure the normal movement of the support box. The regulating pipe 8 is inserted into the sealed heating circulating water tank 1 and is connected to the regulating head 9 through a pipe clamp. A plurality of regulating plates 50 are evenly spaced and distributed at the upper end of the stirring rod 5 and are located below the support box 4. In this embodiment, the number of regulating plates 50 is set to four, and the four regulating plates 50 are symmetrically arranged relative to the central axis of the stirring rod 5. The nozzle 10 is preferably It is selected to be set in the tangential direction of the blade to more effectively convert the impact force of the fluid into the torque that rotates the impeller. A water inlet 11 is set in the stirring rod 5, and the water inlet 11 is set along the length direction of the stirring rod 5. Four adjusting plates 50 are each provided with a water spray channel 12, and the four water spray channels 12 are all connected to the water inlet 11 and are vertically arranged. The top of the water inlet 11 is an opening setting, and the adjusting head 9 is rotatably connected to the opening at the top of the stirring rod 5, and the adjusting head 9 is fixedly connected to the inner wall of the support box, that is, during the rotation of the stirring rod 5, the adjusting head 9 and the adjusting pipe 8 will not rotate, and the water spray channel 12 is used to supply liquid to the nozzle 10, and the four nozzles 10 are respectively arranged on the same side of the adjusting plate 50.

[0033] When the dosing box 2 starts to adjust the pH value in the sealed heating circulating water tank 1, the alkaline solution is pressed into the water inlet 11 of the stirring rod 5 through the adjusting pump 7. After the alkaline solution in the water inlet 11 enters the water spraying channel 12, the alkaline solution is sprayed into the sealed heating circulating water tank 1 under the action of the nozzle 10. Driven by the reaction force between the alkaline solution sprayed out by the nozzle 10 and the wastewater in the sealed heating circulating water tank 1, the four adjusting plates 50 start to rotate, thereby driving the stirring rod 5 to rotate, thereby reducing the drive of the stirring rod 5 and spraying the alkaline solution into the sealed heating circulating water tank 1. In addition, the mixing speed of the alkaline solution and the wastewater in the sealed heating circulating water tank 1 can be accelerated. Combined with the mixing action of the stirring blades 6, the pH adjustment speed of the wastewater in the sealed heating circulating water tank 1 is greatly accelerated. When the present embodiment is set in the initial state, the support box is located at the center of the sealed heating circulating water tank 1, that is, the pH value of the wastewater at the center of the sealed heating circulating water tank 1 is adjusted fastest. In order to ensure that the pH value of the wastewater in the sealed heating circulating water tank 1 is evenly adjusted, it is necessary to complete the pH value adjustment of the wastewater near the side wall of the sealed heating circulating water tank 1.

[0034] Reference Figure 1 and Figure 3 The measuring mechanism includes a measuring cylinder 13, a measuring column 14 slidingly adapted in the measuring cylinder 13, a reciprocating assembly for realizing the reciprocating motion of the measuring column 14, a pH sensor 15 fixed below the measuring column 14, and a sealing plug 16 fixed at the bottom end of the pH sensor 15. Both ends of the measuring cylinder 13 are opened. The measuring cylinder 13 is connected to the bottom end of the water inlet 11 in the stirring rod 5, and a first electromagnetic valve 17 is provided at the connection position between the measuring cylinder 13 and the stirring rod 5. When the sealing plug 16 is located at the opening at the bottom end of the measuring cylinder 13, the first electromagnetic valve 17 is in a closed state, and the outer wall of the measuring column 14 and the inner wall of the measuring cylinder 13 are in contact with each other. The sealing plug 16 is fitted and slidably connected, and the sealing plug 16 is set to a rubber plug and is squeezed and deformed when it is located at the opening of the measuring cylinder 13, thereby achieving a sealing effect on the measuring cylinder 13. At this time, the pH value of the wastewater is adjusted. When the pH sensor 15 is needed to measure the pH value of the wastewater, the pH sensor 15 needs to be removed from the measuring cylinder 13. In this embodiment, due to the stirring effect of the stirring blade 6, the difference in the pH value of the wastewater along the vertical direction is not as large as the difference in the pH value of the wastewater along the horizontal direction. Therefore, setting the pH sensor 15 at the bottom of the stirring rod 5 will not affect the detection of the pH value of the wastewater.

[0035] Reference Figure 1 and Figure 3The reciprocating assembly includes a slider 18, a spring, and a driving part for driving the slider 18 to move. The slider 18 is fixedly connected to the side wall of the measuring column 14. The side wall of the measuring tube 13 is provided with a slide groove 19 for the slider 18 to slide. The length direction of the slide groove 19 is arranged along the length direction of the measuring column 14. Both ends of the slide groove 19 are closed. The two ends of the spring are respectively fixedly connected to either end of the slider 18 and the inner wall of the corresponding end of the slide groove 19. The slide groove 19 is always blocked during the sliding process of the measuring column 14, that is, during the sliding process of the measuring column 14 in the measuring tube 13, the length of the measuring column 14 is sufficient to ensure that the slide groove 19 is in a blocked state. When the sealing plug 16 is located at the opening at the bottom end of the measuring tube 13 , the spring is in a naturally stretched state; the driving part includes a driving chamber 20, a cam 21 rotatably arranged in the driving chamber 20, a driving motor 22 for driving the cam 21 to rotate, and a driving block 23 fixedly connected to the side of the slider 18 away from the measuring column 14, the driving block 23 extends into the driving chamber 20 to slide, the driving chamber 20 is also arranged on the side wall of the measuring cylinder 13 and the driving chamber 20 is connected with the slide groove 19, the cam 21 is located above the slider 18 in the initial position, and the rotation axis of the cam 21 is arranged along a length direction perpendicular to the measuring cylinder 13, the cam 21 includes a rotating part and a protruding part, the rotating part is rotatably connected to the inner wall of the driving chamber 20, and the protruding part abuts against the upper surface of the driving block 23.

[0036] After the pH value at the center of the sealed heating circulating water tank 1 is adjusted, the support box moves to the corresponding side wall position of the sealed heating circulating water tank 1 through the action of the corresponding water spray head 25 and the water pump 26. At this time, the end of the stirring blade 6 is close to the side wall position of the sealed heating circulating water tank 1, and the first solenoid valve 17 is started and the regulating pump 7 is started to continue to flow toward the alkaline solution in the water inlet 11, but the spray head 10 is closed. At this time, the alkaline solution gradually flows toward the measuring cylinder 13 and squeezes the measuring column 14. In this process, the alkaline solution will not flow into the wastewater from the gap between the measuring column 14 and the measuring cylinder 13. As the alkaline solution squeezes the measuring column 14, the sealing plug 16 and the pH sensor 15 begin to move toward the wastewater, and the spring is continuously stretched. When the pH sensor 15 completely moves into the wastewater and detects the pH value in the wastewater, if the pH value is also close to the set 10-12, it proves that the pH adjustment work of the wastewater in the sealed heating circulating water tank 1 is completed. If the pH value is still lower than the set value, it is necessary to continue to adjust the pH value of the wastewater.

[0037] Reference Figure 1 and Figure 4The heating assembly includes a heating block 30 fixed on any stirring blade 6, a heating tube 31 movably arranged in the heating block 30, an insulation sleeve 32 for insulating the heating tube 31, an insulation block 33 fixed at the end of the heating tube 31, and a control unit for controlling the heating time. The heating block 30 is set as an inner cavity, and the insulation sleeve 32 is fixed to the inner cavity of the heating block 30. In this embodiment, the number of heating blocks 30 can be set to multiple, preferably one, the insulation sleeve 32 is adapted to the heating tube 31, and a reciprocating member 34 for controlling the movement of the heating tube 31 in the insulation sleeve 32 is also installed in the heating block 30. The reciprocating member 34 is set as an electric push rod in this embodiment. The insulation sleeve 32 is made of a material with good insulation performance. The output end of the reciprocating member 34 passes through the rear end of the insulation sleeve 32 and is fixedly connected to the heating cylinder 31. The heating cylinder 31 is filled with phase change material. The phase change material stores heat when the sealed heating circulating water tank 1 starts to heat. When the wastewater needs to be locally heated, the phase change material begins to release the stored heat. An insulation hole 35 is provided at the end of the insulation sleeve 32 away from the reciprocating member 34. The insulation block 33 is adapted to the insulation hole 35, and the insulation block 33 and the insulation cylinder are made of the same material and are both insulation materials, that is, heat exchange between the heating cylinder 31 and the wastewater can be realized, and the movement direction of the heating cylinder 31 is along the length direction of the heating block 30.

[0038] When the pH value of the wastewater is adjusted, the wastewater at this location can be locally heated first. Heating can also accelerate the pH adjustment speed. The heating treatment can reduce the dosage of the alkaline solution used, thereby avoiding the continued addition of alkaline solution to affect the overall pH value of the wastewater. The reciprocating member 34 controls the heating cylinder 31 to slide out of the insulation sleeve 32 and plug into the heating hole. The phase change material in the heating cylinder 31 begins to exchange heat with the local wastewater. The pH sensor 15 continues to detect the wastewater at this location. If the pH value of the local wastewater can reach the set value after heating, the pH adjustment work is completed. If the local wastewater still cannot reach the set value even after heating for a period of time, the heating cylinder 31 can be pulled back into the insulation sleeve 32, and an alkaline solution needs to be added through the dosing box 2. Therefore, with the cooperation of the adjusting plate 50 driving the stirring rod 5 to rotate and the nozzle 10 spraying the alkaline solution, the pH value adjustment work of the local wastewater can be completed. In this process, the regulating pump 7 needs to The alkaline solution should be continuously pressed into the water inlet 11 to ensure that the position of the pH sensor 15 does not change; when the pH adjustment is completed, the alkaline solution in the water inlet 11 can be pumped back into the heating box, and the nozzle 10 can be closed. At this time, the cam 21 starts to rotate and the driving block 23 continues to be squeezed downward until the protrusion of the cam 21 is separated from the driving block 23, and the spring starts to pull the pH sensor 15 upward. After repeated multiple times, the pH sensor 15 impacts the wastewater multiple times, and the debris or wastewater adhering to the pH sensor 15 can be cleaned, thereby achieving the effect of cleaning the pH sensor 15. After the cleaning work is completed, the cam 21 is rotated to the position where the protrusion is separated from the driving block 23. Under the elastic force of the spring, the pH sensor 15 is pulled back into the measuring cylinder 13, and the pH sensor 15 is also slidably adapted to the measuring cylinder 13, and the wastewater will not enter the measuring cylinder 13, and the sealing plug 16 also blocks the bottom of the measuring cylinder 13.

[0039] Reference Figure 1 and Figure 4The control unit includes two water level sensors 37, a control frame 36 rotatably arranged in the inner cavity of the heating block 30, two control boxes 38 fixed on the control frame 36, a control tube 39 for connecting the two control boxes 38, a control frame 40, an extrusion rod 41 elastically arranged in the control frame 40, and a transmission member for adjusting the flow of the control tube 39. A control motor 42 for driving the control frame 36 to rotate is arranged in the heating block 30. The control frame 40 is fixed in the heating block 30. A solenoid valve is also arranged on the control tube 39. The axis direction of the rotation of the control frame 36 is arranged along the movement direction of the extrusion rod 41. The control tube 39 is arranged as a hose, and the control tube 39 is arranged vertically. The control tube 39 is located on the movement route of the extrusion rod 41 and the other side of the control tube 39 is in contact with the wall surface of the control frame 36. The two control boxes 38 are filled with water, and the two water level sensors 37 are respectively installed in the two control boxes 38, and when the control box 38 is rotated to the upper side, the corresponding water level sensor 37 is located at the top of the corresponding control box 38. The water level sensor 37 is connected to a buzzer through the control of the PLC controller. The water level sensor 37 is used to monitor whether the water in the corresponding control box 38 is completely retained. After all the water flows into the other control box 38, the water level sensor 37 is also controlled and connected to the reciprocating member 34 through different PLC controllers. When the heating cylinder 31 pushes the extrusion rod 41, the other end of the extrusion rod 41 squeezes the control tube 39 until it is tightly against the wall of the control frame 36. Since the control tube 39 is a hose, the control tube 39 is squeezed and deformed at this time, thereby achieving the effect of reducing the flow rate of the control tube 39.

[0040] Reference Figure 1 and Figure 4 The transmission member is located between the heating cylinder 31 and the extrusion rod 41. The main function of the transmission member is to control the movement distance of the extrusion rod 41 so as to control the deformation state of the control tube 39 and finally control the water flow of the regulating tube 8. The side wall of the extrusion rod 41 is fixedly connected with a limiting block. The control frame 40 is provided with a limiting groove for sliding the limiting block. Both ends of the limiting groove are closed. A spring is fixedly connected between either end of the limiting block and the corresponding side wall of the limiting groove. When the extrusion rod 41 is in the initial position, the spring is in the original shape. When the extrusion rod 41 squeezes the control tube 39, the spring is in a stretched state. The transmission member includes a plurality of iron balls 4 of different sizes. 3. The control frame 36 is provided with a transmission plate 44 for lifting. A plurality of first electromagnets 45 for respectively adsorbing a plurality of iron balls 43 are fixedly connected to the transmission plate 44. In this embodiment, the number of the iron balls 43 is consistent with the number of the first electromagnets 45, and can be set to two or three, preferably two. The heating block 30 is provided with an arc plate 46 for placing the iron balls 43 between the heating cylinder 31 and the extrusion rod 41. The length direction of the arc plate 46 is consistent with the movement direction of the extrusion rod 41. The largest-sized iron balls 43 are slidably adapted on the arc plate 46, so that it can be ensured that all the iron balls 43 are located in the arc plate 46 and will not fall off the arc plate 46.

[0041] When the deformation of the control tube 39 needs to be adjusted, the corresponding first electromagnet 45 is powered off, and the first electromagnet 45 puts down the iron ball 43, and the iron ball 43 falls onto the arc plate 46. At this time, the reciprocating member 34 controls the heating tube 31 to move toward the arc plate 46, and the sealing plug 16 at the rear of the heating tube 31 abuts against the iron ball 43. The iron ball 43 is pushed to abut against one end of the extrusion rod 41. Since the moving distance of the heating tube 31 does not change, if the iron ball 43 is added between the extrusion rod 41 and the heating tube 31, the moving distance of the extrusion rod 41 changes, and then the extrusion rod 41 squeezes the control tube 39. The deformation state also changes, and the flow rate of the control tube 39 becomes smaller. At this time, the heating time of the heating tube 31 is controlled until the water level sensor 37 detects that all the water in the corresponding control box 38 flows into another control box 38. The water level sensor 37 starts to control the reciprocating member 34 to drive the heating tube 31 to return. Under the action of the spring connected to the extrusion rod 41, the iron ball 43 also moves to the initial position. After the transmission plate 44 is lowered, the corresponding first electromagnet 45 adsorbs the iron ball 43, and also drives the control frame 36 to rotate, closing the solenoid valve on the control tube 39 to prepare for the next control work.

[0042] The implementation principle of the wastewater deammonification treatment system based on the deammonification membrane in the embodiment of the present application is as follows: when the dosing box 2 starts to adjust the pH value in the sealed heating circulating water tank 1, the alkaline solution is pressed into the water inlet 11 of the stirring rod 5 through the regulating pump 7. After the alkaline solution in the water inlet 11 enters the water spraying channel 12, the alkaline solution is sprayed into the sealed heating circulating water tank 1 under the action of the nozzle 10. Under the push of the reaction force between the alkaline solution sprayed out by the nozzle 10 and the wastewater in the sealed heating circulating water tank 1, the four adjusting plates 50 start to rotate, thereby driving the stirring rod 5 to rotate, thereby reducing the drive of the stirring rod 5 and also achieving the effect of spraying the alkaline solution into the sealed heating circulating water tank 1; the pH value of the wastewater at the center position of the sealed heating circulating water tank 1 is adjusted the fastest. In order to ensure that the pH value of the wastewater in the sealed heating circulating water tank 1 is evenly adjusted, it is necessary to check whether the pH value of the wastewater near the side wall of the sealed heating circulating water tank 1 is adjusted.

[0043] Under the action of the corresponding water spray head 25 and the water pump 26, the support box moves to the corresponding side wall position of the sealed heating circulating water tank 1, the first solenoid valve 17 is opened and the regulating pump 7 starts to continue to flow toward the alkaline solution in the water inlet 11, and the spray head 10 is closed. At this time, the alkaline solution gradually flows toward the measuring cylinder 13 and squeezes the measuring column 14. In this process, the alkaline solution will not flow into the wastewater from the gap between the measuring column 14 and the measuring cylinder 13. As the alkaline solution squeezes the measuring column 14, the sealing plug 16 and the pH sensor 15 begin to move toward the wastewater, and the spring is continuously stretched. When the pH sensor 15 completely moves into the wastewater and detects the pH value in the wastewater, if the pH value is also close to the set 10-12, it proves that the pH adjustment work of the wastewater in the sealed heating circulating water tank 1 is completed. If the pH value is still lower than the set value, it is necessary to continue to adjust the pH value of the wastewater.

[0044] The reciprocating member 34 controls the heating cylinder 31 to slide out of the insulation sleeve 32 and plug into the heating hole. The phase change material in the heating cylinder 31 begins to exchange heat with the local wastewater. The pH sensor 15 continues to detect the wastewater at this location. If the pH value of the local wastewater can reach the set value after heating, the pH adjustment work is completed. At the same time, the corresponding first electromagnet 45 is powered off, and the first electromagnet 45 puts down the iron ball 43, and the iron ball 43 falls onto the arc plate 46. At this time, the reciprocating member 34 controls the heating cylinder 31 to move toward the arc plate 46. The sealing plug 16 at the tail of the heating cylinder 31 abuts against the iron ball 43, and the iron ball 43 is pushed to abut against one end of the extrusion rod 41. The iron ball 43 is added between the extrusion rod 41 and the heating cylinder 31, and the movement distance of the extrusion rod 41 changes. Then, the state of the extrusion deformation of the control tube 39 by the extrusion rod 41 also changes, and the flow rate of the control tube 39 becomes smaller. At this time, the heating time of the heating tube 31 is controlled until the water level sensor 37 detects that all the water in the corresponding control box 38 flows into the other control box 38. The water level sensor 37 starts to control the reciprocating member 34 to drive the heating tube 31 to return. At this time, if the local wastewater still cannot reach the set value, it is necessary to add alkaline solution through the dosing box 2. Therefore, with the cooperation of the adjusting plate 50 driving the stirring rod 5 to rotate and the nozzle 10 spraying the alkaline solution, the pH value of the local wastewater can be adjusted. In this process, the adjusting pump 7 needs to continuously press the alkaline solution into the water inlet 11 to ensure that the position of the pH sensor 15 does not change.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wastewater deamination treatment system based on a deamination membrane, comprising a microfiltration system, a dosing box (2), a membrane deamination system device, an ammonia resource system device and a heat exchange component, wherein the membrane deamination system device comprises a sealed heating circulating water tank (1), a first filter and a PTFE deamination membrane component, and the dosing box (2) adjusts the pH value of the wastewater in the sealed heating circulating water tank (1); characterized in that: The sealed heating circulating water tank (1) is provided with a stirring mechanism and a measuring mechanism for measuring the pH value, and the dosing box (2) is connected with a regulating mechanism for providing power for the stirring mechanism to rotate; The stirring mechanism comprises a bracket (3) fixed on the top of the sealed heating circulating water tank (1), a supporting box (4) movably arranged on the bracket (3), a locking component for locking the supporting box (4), a stirring rod (5) rotatably arranged at the bottom of the supporting box (4), a plurality of stirring blades (6) fixed to the outer peripheral wall of the stirring rod (5), a power component for providing power for the movement of the supporting box (4), and a heating component with a heating function; the supporting box (4) floats on the liquid surface in the sealed heating circulating water tank (1), and the regulating mechanism is used to drive the stirring rod (5) to rotate; the regulating mechanism comprises a regulating pump (7) connected to the outlet of the dosing box (2), and a regulating pump (7) connected to the output end of the regulating pump (7). The invention relates to a regulating tube (8) connected to the regulating tube (8), a regulating head (9) connected to the other end of the regulating tube (8), a plurality of regulating sheets (50) and a plurality of spray heads (10), wherein the plurality of regulating sheets (50) are evenly spaced and distributed at the upper end of the stirring rod (5) and are located below the supporting box (4), the top of the stirring rod (5) penetrates into the interior of the supporting box (4), a water inlet (11) is arranged in the stirring rod (5), a plurality of the regulating sheets (50) are each provided with a spray channel (12), and the plurality of the spray channels (12) are each connected to the water inlet (11), the top end of the water inlet (11) is an opening, the regulating head (9) is rotatably connected to the top end opening of the stirring rod (5), and the regulating head (9) is fixed to the supporting box (4). The water spray channel (12) is used to supply liquid to the spray head (10), and the plurality of spray heads (10) are respectively provided on the same side of the plurality of adjusting plates (50); the measuring mechanism comprises a measuring cylinder (13), a measuring column (14) slidably adapted in the measuring cylinder (13), a reciprocating assembly for realizing the reciprocating motion of the measuring column (14), a pH sensor (15) fixed below the measuring column (14), and a sealing plug (16) fixed at the bottom end of the pH sensor (15); both ends of the measuring cylinder (13) are opened, the measuring cylinder (13) is communicated with the water inlet channel (11) in the stirring rod (5), and a first electric A magnetic valve (17), wherein the first electromagnetic valve (17) is in a closed state when the sealing plug (16) is located at the bottom opening of the measuring cylinder (13); the reciprocating assembly comprises a slider (18), a spring and a driving part for driving the slider (18) to move, wherein the slider (18) is fixedly connected to the side wall of the measuring column (14), and the side wall of the measuring cylinder (13) is provided with a slide groove (19) for sliding the slider (18), wherein the length direction of the slide groove (19) is arranged along the length direction of the measuring column (14), and the two ends of the spring are respectively fixedly connected to either end of the slider (18) and the inner wall of the corresponding end of the slide groove (19), and the slide groove (19) is always blocked during the sliding process of the measuring column (14);The driving part comprises a driving cavity (20), a cam (21) rotatably disposed in the driving cavity (20), a driving motor (22) for driving the cam (21) to rotate, and a driving block (23) fixedly connected to a side of the slider (18) away from the measuring column (14), wherein the driving block (23) extends into the driving cavity (20) to slide, and a protrusion of the cam (21) abuts against the driving block (23). ; 2. A wastewater deammoniation treatment system based on a deammonification membrane according to claim 1, characterized in that: The power assembly is provided with two, and the power assembly comprises a power box (24), a water spray head (25), a water pump (26) and a liquid level sensor (27). The two power boxes (24) are respectively installed on two opposite side walls of the support box (4) and are distributed along the movement direction of the support box (4). The water spray head (25) is installed on the outer side wall of the power box (24), and the two water spray heads (25) are arranged in opposite directions. The water pump (26) is arranged in the power box (24) and presses the solution to the spray head (10). The power box (24) is provided with a water inlet (28) located below the liquid level, and the water inlet (28) is provided with a second electromagnetic valve (29). The liquid level sensor (27) is arranged in the power box (24) and is used to control the operation of the second electromagnetic valve (29).

3. A wastewater deammoniation treatment system based on a deammonification membrane according to claim 2, characterized in that: The heating assembly comprises a heating block (30) fixed on any one of the stirring blades (6), a heating tube (31) movably arranged in the heating block (30), an insulation sleeve (32) for insulating the heating tube (31), an insulation block (33) fixed at the end of the heating tube (31), and a control unit for controlling the heating time. The heating block (30) is arranged as an inner cavity, the heating tube (31) is filled with phase change material, the insulation sleeve (32) is fixed in the inner cavity of the heating block (30), and a reciprocating member (34) for controlling the movement of the heating tube (31) in the insulation sleeve (32) is also arranged in the heating block (30), and the insulation sleeve (32) is provided with an insulation hole (35) at one end away from the reciprocating member (34), and the insulation block (33) is adapted to the insulation hole (35).

4. A wastewater deammoniation treatment system based on a deammonification membrane according to claim 3, characterized in that: The control unit comprises two water level sensors (37), a control frame (36) rotatably arranged in the inner cavity of the heating block (30), two control boxes (38) fixed on the control frame (36), a control pipe (39) for connecting the two control boxes (38), a control frame (40) fixed in the heating block (30), an extrusion rod (41) elastically arranged in the control frame (40), and a transmission member for adjusting the flow of the control pipe (39); a control motor (42) for driving the control frame (36) to rotate is arranged in the heating block (30). ), the two water level sensors (37) are respectively arranged in the two control boxes (38), the control tube (39) is arranged as a hose, the control tube (39) is located on the movement path of the extrusion rod (41) and the other side of the control tube (39) is in contact with the wall surface of the control frame (36), the heating tube (31) pushes the extrusion rod (41), and the other end of the extrusion rod (41) squeezes the control tube (39) until it is tightly against the control frame (36), and the transmission member is located between the heating tube (31) and the extrusion rod (41).

5. A wastewater deammoniation treatment system based on a deammonification membrane according to claim 4, characterized in that: The transmission member comprises a plurality of iron balls (43) of different sizes; the control frame (36) is provided with a transmission plate (44) for lifting; the transmission plate (44) is provided with a plurality of first electromagnets (45) for respectively adsorbing the plurality of iron balls (43); the heating block (30) is provided with an arc plate (46) for placing the iron balls (43) between the heating cylinder (31) and the extrusion rod (41); the length direction of the arc plate (46) is consistent with the movement direction of the extrusion rod (41); the iron ball (43) of the largest size is slidably adapted on the arc plate (46).

6. A wastewater deammoniation treatment system based on a deammonification membrane according to claim 1, characterized in that: The locking assembly comprises a sliding rod (47) fixed on the bracket (3), a moving block (48) slidably sleeved outside the sliding rod (47), and a second electromagnet (49) fixed on the moving block (48); the moving block (48) is fixedly connected to the supporting box (4), and the second electromagnet (49) is adsorbed on the bracket (3).

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