A high ammonia-nitrogen wastewater resource recycling device

Abstract

The application discloses a high-ammonia-nitrogen wastewater resource recycling device and particularly relates to the technical field of wastewater treatment devices, which comprises a self-cleaning filter, one side of the self-cleaning filter is fixed with a cyclone separation assembly through a support, an input end of the cyclone separation assembly is fixed with a feeding assembly, one side of the cyclone separation assembly is fixed with a conical pipe one, one side of the conical pipe one is fixed with a transition pipe, one side of the transition pipe is fixed with a conical pipe two, one side of the conical pipe two is fixed with a sludge discharge assembly, and one side of the self-cleaning filter is fixed with an ultrafiltration assembly. The high-ammonia-nitrogen wastewater resource recycling device can adjust the angle of wastewater entering the inner cavity of the cyclone separation assembly according to the viscosity of the wastewater when the wastewater enters the inner cavity of the cyclone separation assembly, so as to change the rotational flow intensity of the wastewater, through the mutual cooperation among the feeding assembly, the cyclone separation assembly, the conical pipe one, the transition pipe and the sludge discharge assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment devices, in particular to a high ammonia-nitrogen wastewater resource recycling device. BACKGROUND

[0002] PECVD coating film is to form an antireflection film on the surface of a silicon wafer to reduce the reflectivity of the incident light on the positive surface of the battery and reduce the light-generated carrier recombination rate on the positive surface of the battery, thereby improving the open-circuit voltage and short-circuit current of the battery, and achieving the purpose of improving the conversion efficiency of the battery; wherein the positive coating film is formed by the reaction of SiH4, N2O and NH3 in a plasma state to deposit Si3N4, Si2N2O3 film with high hardness, high dielectric strength and good moisture resistance on the positive surface of the silicon wafer; a large amount of ammonia is introduced to improve the reaction efficiency of SiH4 and N2O, and the reaction rate of N2O in the positive coating film is about 99.5%, the reaction rate of SiH4 is about 95%, and the reaction rate of NH3 is about 90%.

[0003] Due to the flammable and combustible properties of SiH4, the exhaust gas generated in the coating film section enters a combustion cylinder + a bag type dust collector + a silane combustion tower + an acid liquid washing tower, SiH4 is formed into SiO2 by combustion and is removed in the form of particulate matter, and the unreacted ammonia gas is absorbed by the acid liquid washing tower, and according to different absorption acids, it is ammonium chloride or ammonium sulfate solution, when the absorption reaches a certain concentration, the saturated absorption liquid is discharged, which is the wastewater to be treated in the project.

[0004] In the process of filtering the suspended solids in the high ammonia-nitrogen wastewater, due to the complex composition of the suspended solids, including organic colloids, inorganic precipitates, biological residues, etc., single physical filtration cannot effectively filter the suspended solids, and the filter screen is also easily blocked in the filtering process, thereby affecting the filtering efficiency of the device. SUMMARY

[0005] The purpose of the present application is to solve the problem that in the process of filtering the suspended solids in the high ammonia-nitrogen wastewater, due to the complex composition of the suspended solids, single physical filtration cannot effectively filter the suspended solids, and the filter screen is also easily blocked in the filtering process, thereby affecting the filtering efficiency of the device, and a high ammonia-nitrogen wastewater resource recycling device is proposed.

[0006] In order to achieve the above purpose, the present application adopts the following technology, a high ammonia-nitrogen wastewater resource recycling device:

[0007] Including self-cleaning filter, one side of self-cleaning filter is fixed with cyclone separation assembly through support, input end of cyclone separation assembly is fixed with feed assembly, one side of cyclone separation assembly is fixed with conical tube one, one side of conical tube one is fixed with transition tube, one side of transition tube is fixed with conical tube two, one side of conical tube two is fixed with sludge discharge assembly, one side of self-cleaning filter is fixed with ultrafiltration assembly;

[0008] Feed assembly includes feed pipe, venturi is fixed in the lumen of feed pipe, piston cylinder that is matched with venturi is fixed on feed pipe, piston rod is fixed in the lumen of piston cylinder, rack is fixed on piston rod through connecting rod, flow guide fin is arranged in the lumen of feed pipe, gear assembly that is matched with flow guide fin is fixed on feed pipe.

[0009] The viscosity of wastewater passing through the lumen of venturi is different, so that the pressure of the throat of venturi changes, so that the piston cylinder in the lumen of piston rod moves with the rack, and the angle between the flow guide fin and the axis of the feed pipe changes through the cooperation between the rack and the gear assembly.

[0010] As a further description of the above-mentioned technology, a high ammonia-nitrogen wastewater resource recovery device is provided.

[0011] The gear assembly includes a vertical plate fixedly connected with the feed pipe, a gear one engaged with the rack is rotatably installed on one side of the vertical plate, a set of bevel gears engaged with each other are installed on one side of the gear one, the vertical bevel gears are coaxially fixedly connected between the gear one, and the horizontal bevel gears are coaxially fixedly connected with the flow guide fin.

[0012] As a further description of the above-mentioned technology, a high ammonia-nitrogen wastewater resource recovery device is provided.

[0013] A group of stepped grooves are arranged in the lumen of the conical tube one, a plurality of annular arrayed spiral grooves are arranged in the lumen of the transition tube, and a plurality of corrugated protrusions are fixed in the lumen of the conical tube two.

[0014] As a further description of the above-mentioned technology, a high ammonia-nitrogen wastewater resource recovery device is provided.

[0015] The ultrafiltration assembly includes a water tank, a water pump is fixed on one side of the water tank, a fixed pipe is fixed on one side of the water tank through a connecting block, a liquid outlet pipe and a liquid inlet assembly are respectively fixed on both sides of the fixed pipe, the liquid inlet assembly is fixedly connected with the output end of the self-cleaning filter, a center-symmetric water inlet pipe and a water outlet pipe are fixed on the outer surface of the fixed pipe, the output end of the water pump is connected with the water inlet pipe through a conveying pipe assembly, the input end of the water pump is communicated with the lumen of the water tank, and the water outlet pipe is communicated with the lumen of the water tank.

[0016] As a further description of the above-mentioned technology, a high ammonia-nitrogen wastewater resource recovery device is provided.

[0017] The fixed pipe is rotationally mounted with a filter assembly, and a motor one is fixed on the fixed pipe, and a driving gear adapted to the filter assembly is fixed on the output end of the motor one.

[0018] As a further description of the above-mentioned technology, a high ammonia-nitrogen wastewater resource recycling device is provided.

[0019] A nozzle adapted to the filter assembly is fixed on the fixed pipe, and the nozzle is connected with the conveying pipe assembly through a water pipe.

[0020] As a further description of the above-mentioned technology, a high ammonia-nitrogen wastewater resource recycling device is provided.

[0021] The filter assembly comprises a ceramic membrane assembly, two groups of symmetrical mounting rings are fixed on the outer surface of the ceramic membrane assembly, and a gear ring engaged with the driving gear is fixed on the outer surface of the ceramic membrane assembly.

[0022] As a further description of the above-mentioned technology, a high ammonia-nitrogen wastewater resource recycling device is provided.

[0023] The liquid inlet assembly comprises a liquid inlet pipe, the inner cavity of the liquid inlet pipe is double-curved surface-shaped, and a plurality of annular arrayed vortex generators are fixed in the inner cavity of the liquid inlet pipe.

[0024] As a further description of the above-mentioned technology, a high ammonia-nitrogen wastewater resource recycling device is provided.

[0025] One side of the ultrafiltration assembly is fixed with a concentration evaporation assembly, and the concentration evaporation assembly comprises a reverse osmosis system and an evaporation crystallization water inlet tank.

[0026] As described above, due to the use of the above-mentioned technology, the high ammonia-nitrogen wastewater resource recycling device has the following advantages:

[0027] 1. The device can adjust the angle of wastewater entering the inner cavity of the cyclone separation assembly according to the viscosity of the wastewater, change the rotational flow intensity of the wastewater, improve the separation efficiency of impurities in the wastewater, reduce the flocculation breaking rate, and reduce the struvite scaling rate, so as to enhance the anti-blocking performance; when the wastewater passes through the inner cavity of the venturi pipe, the pressure between the feed pipe and the throat of the venturi pipe is different according to the different viscosity of the wastewater, so that the piston rod can move in the inner cavity of the piston cylinder, the gear one drives a group of bevel gears to rotate through the rack connected by the piston rod, so that the guide vane in the inner cavity of the feed pipe rotates, the angle between the guide vane and the axis of the feed pipe changes, and different effects are achieved, which can improve the flow distribution efficiency between the first conical pipe, the transition pipe and the second conical pipe, and reduce the probability of blockage in the inner cavities of the first conical pipe, the transition pipe and the second conical pipe.

[0028] 2. The device can separate heavy particles and fine suspended solids in wastewater through the structure composed of the cyclone separation assembly, the conical pipe one, the transition pipe and the conical pipe two. The waste liquid discharged from the cyclone separation assembly is subjected to secondary filtration by the wedge-shaped filter cartridge inside the self-cleaning filter, and the waste liquid discharged from the self-cleaning filter is subjected to re-filtration by the filter assembly inside the ultrafiltration assembly. The filtration of suspended solids is realized through "cyclone separation + wedge-shaped filter cartridge + ceramic membrane ultrafiltration", the content of impurities in water is reduced, high ammonia-nitrogen wastewater is effectively filtered, and the filtered wastewater can be directly discharged. The high ammonia-nitrogen wastewater is introduced into the inner cavity of the feed pipe by the delivery pump, the wastewater is accelerated by the Venturi tube in the inner cavity of the feed pipe, flows into the input conduit of the cyclone separation assembly, and then enters the double-cone cyclone separation structure composed of the conical pipe one, the transition pipe and the conical pipe two, so as to separate heavy particles and fine suspended solids in the wastewater.

[0029] 3. The device can increase the shear force of the waste liquid entering the filter assembly from the liquid inlet assembly through the cooperation between the filter assembly and the drive gear, reconstruct the flow field through mechanical rotation, replace fluid kinetic energy with centrifugal shear, improve the separation efficiency, reduce the circulation flow, reduce the power consumption of the pump, make the shear force of the waste liquid vertical to the membrane surface, and improve the peeling efficiency of the pollution layer. The waste liquid flowing from the liquid inlet assembly enters the inner cavity of the fixed pipe, the drive gear rotates with the drive gear belt driven by the motor one, the ceramic membrane assembly rotates through the gear ring engaged with the drive gear, so that the liquid entering the ceramic membrane assembly no longer flows horizontally, but tangentially, thereby increasing the shear force of the waste liquid.

[0030] 4. The device can further concentrate and crystallize the filtered wastewater through the concentration and evaporation assembly, evaporate the wastewater into ammonium sulfate crystals, the crystals can generate actual economic value, the device can change the wastewater into ammonium sulfate with economic value, and the practicality of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 An overall structure schematic diagram provided by an embodiment of the present application is shown;

[0032] Figure 2 A connection structure schematic diagram of the cyclone separation assembly, the conical pipe one, the transition pipe and the conical pipe two provided by an embodiment of the present application is shown;

[0033] Figure 3 An inlet assembly structure sectional view provided by an embodiment of the present application is shown;

[0034] Figure 4 A gear assembly and rack cooperation schematic diagram provided by an embodiment of the present application is shown;

[0035] Figure 5The exploded view of the conical pipe one, the transition pipe and the conical pipe two structure is shown according to the embodiment of the present application;

[0036] Figure 6 The cross-sectional view of the cyclone separation assembly, the conical pipe one, the transition pipe and the conical pipe two is shown according to the embodiment of the present application;

[0037] Figure 7 The overall structure schematic of the ultrafiltration assembly is shown according to the embodiment of the present application Figure 1 ;

[0038] Figure 8 The overall structure schematic of the ultrafiltration assembly is shown according to the embodiment of the present application Figure 2 ;

[0039] Figure 9 The cross-sectional view of the fixed pipe is shown according to the embodiment of the present application;

[0040] Figure 10 The structure schematic of the filtration assembly is shown according to the embodiment of the present application;

[0041] Figure 11 The structure schematic of the liquid inlet assembly is shown according to the embodiment of the present application;

[0042] Figure 12 The schematic diagram of the installation position of the spray head is shown according to the embodiment of the present application.

[0043] Legend:

[0044] 10, self-cleaning filter;

[0045] 21, cyclone separation assembly; 22, conical pipe one; 221, groove; 23, transition pipe; 231, spiral groove; 24, conical pipe two; 241, corrugated protrusion; 25, sludge discharge assembly;

[0046] 30, feed assembly; 31, feed pipe; 32, venturi; 33, piston cylinder; 34, piston rod; 35, rack; 36, gear assembly; 361, vertical plate; 362, gear one; 363, bevel gear; 37, guide vane;

[0047] 40, ultrafiltration assembly; 41, water tank; 42, fixed pipe; 421, water inlet pipe; 422, water outlet pipe; 43, liquid outlet pipe; 44, motor one; 441, drive gear; 45, liquid inlet assembly; 451, liquid inlet pipe; 452, vortex generator; 46, conveying pipe assembly; 47, water pump; 48, spray head; 49, filtration assembly; 491, ceramic membrane assembly; 492, mounting ring; 493, gear ring; 50, concentration and evaporation assembly. DETAILED DESCRIPTION

[0048] The following will describe in detail, with reference to the accompanying drawings of the embodiments of the present invention, a high ammonia nitrogen wastewater resource recovery device of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] Example 1: As Figure 1 As shown, a high ammonia nitrogen wastewater resource recovery device includes a self-cleaning filter 10. The self-cleaning filter 10 is a prior art and is a filter that can clean itself. Its filtration essence is to use a wedge-shaped filter cartridge, and the size range of the impurity particles it filters is 50μm-200μm.

[0050] Next, as Figure 1 and Figure 2 As shown, a cyclone separator 21 is fixed to one side of the self-cleaning filter 10 by a bracket. The cyclone separator 21 includes a cylindrical head, an inlet conduit, and an overflow discharge pipe. Liquid entering the inner cavity of the cyclone separator 21 from the inlet conduit flows tangentially through the cylindrical head. The overflow discharge pipe is used to discharge fine suspended particles. A feed assembly 30 is fixed to the input end of the cyclone separator 21. The feed assembly 30 is used to adjust the angle at which the wastewater enters the cyclone separator 21 according to the viscosity of the wastewater. The output end of the cyclone separator 21 is connected to the inner cavity of the self-cleaning filter 10. The overflow discharge pipe in the cyclone separator 21 is connected to the inner cavity of the self-cleaning filter 10, and the separated fine particles are discharged into the inner cavity of the self-cleaning filter 10.

[0051] The cyclone separation component 21 has a cone tube 22 fixed on one side, a transition tube 23 fixed on the side of the cone tube 22 away from the cyclone separation component 21, and a cone tube 24 fixed on the side of the transition tube 23 away from the cone tube 22. The inner cavities of the cone tube 22, the transition tube 23, and the cone tube 24 are connected. The cone tube 22, the transition tube 23, and the cone tube 24 form a gradually narrowing cyclone separation section. The double cone cyclone of the cone tube 22 and the cone tube 24 makes the separation efficiency of suspended matter faster. The large cone angle of the cone tube 22 accelerates particle sedimentation, and the small cone angle of the cone tube 24 finely separates fine particles. The two sides of the inner cavity of the transition tube 23 are hyperboloid arcs, which facilitates the flow of liquid. The diversion tube composed of the cone tube 22, the transition tube 23, and the cone tube 24 can separate heavy particles and suspended matter larger than 200μm.

[0052] Then, the conical pipe two 24 is fixed with the sludge discharge assembly 25 on the side away from the transition pipe 23, the sludge discharge assembly 25 includes an inverted conical pipe and a sludge discharge valve, the inverted conical pipe has a cone angle of 60°, guiding the particles to gather in the center, the self-cleaning filter 10 is fixed with the ultrafiltration assembly 40 on one side, the ultrafiltration assembly 40 performs secondary ultrafiltration on the filtered liquid discharged from the self-cleaning filter 10 through the ceramic membrane, and the size range of the impurity particles filtered is less than 50 μm;

[0053] Through the structure composed of the cyclone separation assembly 21, the conical pipe one 22, the transition pipe 23 and the conical pipe two 24, the heavy particles in the suspended matter and the light suspended matter can be separated and discharged, and primary filtration is realized, the light liquid flow discharged from the overflow discharge pipe of the cyclone separation assembly 21 is subjected to secondary filtration through the self-cleaning filter 10, the filtered liquid discharged from the self-cleaning filter 10 is subjected to tertiary ultrafiltration through the ultrafiltration assembly 40, the filtration of the suspended matter is realized through the "cyclone separation + wedge-shaped filter cartridge + ceramic membrane ultrafiltration", the content of impurities in the water is reduced, and the filtered wastewater can be further concentrated.

[0054] Further, as shown in Figure 3 and Figure 4 , the feed assembly 30 includes the feed pipe 31 fixed with the input end of the cyclone separation assembly 21, the feed pipe 31 is connected with the input guide pipe in the cyclone separation assembly 21, the venturi tube 32 is fixed in the inner cavity of the feed pipe 31, the piston cylinder 33 matched with the venturi tube 32 is fixed on the feed pipe 31, the piston cylinder 33 is located at the position of the throat of the venturi tube 32, the venturi tube 32 is tightly attached to the feed pipe 31, so that the throat of the venturi tube 32 and the piston cylinder 33 are in a vacuum state, the piston rod 34 is fixed in the inner cavity of the piston cylinder 33, when the viscosity of the wastewater increases, the flow resistance increases, the pressure in the inner cavity of the throat of the venturi tube 32 decreases, the displacement of the piston rod 34 increases, and the rack 35 is fixed on the piston rod 34 through the connecting rod;

[0055] The inner cavity of the feed pipe 31 is provided with the flow guide fin 37, the flow guide fin 37 is rotatably installed in the inner cavity of the feed pipe 31 through the connecting shaft and the return spring, and does not contact the inner cavity of the feed pipe 31, the angle adjustment reference of the flow guide fin 37 is the central axis of the feed pipe 31, and the optimal fin angle is defined as: the included angle θ between the chord direction of the flow guide fin 37 and the axis of the feed pipe 31, when the chord line of the flow guide fin 37 is parallel to the axis of the feed pipe 31, θ = 0°, when the viscosity increases, the fin tends to a small angle of 25°, reducing the shear disturbance to the high-viscosity fluid, when the viscosity decreases, the spring returns to make the fin tend to a large angle of 40°, enhancing the centrifugal separation, the chord line of the flow guide fin 37 is the connecting line between the leading edge and the trailing edge of the flow guide fin 37, and the gear assembly 36 matched with the flow guide fin 37 is fixed on the feed pipe 31;

[0056] The viscosity of the wastewater passing through the inner cavity of the Venturi tube 32 is different, which changes the pressure at the throat of the Venturi tube 32, so that the piston rod 34 moves in the inner cavity of the piston barrel 33, and through the cooperation between the rack 35 and the gear assembly 36, the angle between the guide vane 37 and the axis of the feed pipe 31 changes; when the viscosity of the wastewater is less than 10 cP, the optimal vane angle θ of the guide vane 37 is 40°, and through the large angle, the waste liquid is strongly divided in the tangential direction, and the cyclone intensity is enhanced; when the viscosity of the wastewater is 10-25 cP, the optimal vane angle θ of the guide vane 37 is 32°, and through the medium angle, the flow field is balanced, and the tangential / axial flow is balanced; when the viscosity of the wastewater is greater than 25 cP, through the small angle, the low shear axial propulsion is carried out, and the turbulence is inhibited to protect the flocs.

[0057] Further, as shown in Figure 4 , the gear assembly 36 includes a vertical plate 361 fixedly connected with the feed pipe 31, and a gear one 362 engaged with the rack 35 is rotatably installed on one side of the vertical plate 361; when the viscosity of the wastewater increases and the flow resistance becomes larger, the pressure at the throat of the Venturi tube 32 decreases, so that the piston rod 34 moves in the inner cavity of the piston barrel 33, and the piston rod 34 moves with the rack 35 through the connecting rod, so that the rack 35 rotates with the gear one 362; a set of bevel gears 363 is installed on one side of the gear one 362; the vertical bevel gears 363 are coaxially fixedly connected with the gear one 362; the horizontal bevel gears 363 are coaxially fixedly connected with the guide vane 37; through the set of bevel gears 363, the gear one 362 can rotate with the guide vane 37 in the process of rotation; when the viscosity of the wastewater decreases and the flow resistance becomes smaller, the guide vane 37 is reset through the reset spring on the guide vane 37, so that the included angle θ tends to 40°.

[0058] Further, as shown in Figure 5 and Figure 6 , a set of stepped grooves 221 are arranged in the inner cavity of the conical pipe one 22, and through the set of stepped grooves 221, a vortex area can be formed to disturb the deposition of particles; a plurality of annular array spiral grooves 231 are arranged in the inner cavity of the transition pipe 23, and through the plurality of spiral grooves 231, the particles are forced to move along the spiral track to avoid direct accumulation; a plurality of corrugated protrusions 241 are fixedly arranged in the inner cavity of the conical pipe two 24, so that the inner cavity of the conical pipe two 24 forms a corrugated structure to enhance the boundary layer turbulence and prevent fine particles from adhering.

[0059] Embodiment two: this embodiment is further limited to the ultrafiltration assembly 40 on the basis of embodiment one, in order to achieve the purpose of further ultrafiltration of the liquid filtered by the self-cleaning filter 10.

[0060] Specifically, as shown in Figure 7 and Figure 8The ultrafiltration assembly 40 comprises a water tank 41 for collecting filtered wastewater, one side of the water tank 41 is fixed with a water pump 47, one side of the water tank 41 is fixed with a fixed pipe 42 through a connecting block, the fixed pipe 42 is sealed by a sealing ring from two straight pipes, the fixed pipe 42 is fixed with a liquid outlet pipe 43 and a liquid inlet assembly 45 on both sides respectively, the liquid inlet assembly 45 is located on the side close to the self-cleaning filter 10, the liquid inlet assembly 45 is fixedly connected with the output end of the self-cleaning filter 10, so that the filtered waste liquid in the inner cavity of the self-cleaning filter 10 is discharged into the inner cavity of the fixed pipe 42 through the liquid inlet assembly 45, and the liquid outlet pipe 43 is used for discharging the concentrated waste liquid filtered in the inner cavity of the fixed pipe 42;

[0061] As shown in Figure 9 , the fixed pipe 42 is fixed with a center-symmetric water inlet pipe 421 and a water outlet pipe 422 on the outer surface, the water inlet pipe 421 and the water outlet pipe 422 are fixedly installed on the fixed pipe 42 one above the other and communicate with the inner cavity of the fixed pipe 42, the water inlet pipe 421 is used for backwashing, and the water outlet pipe 422 is used for discharging the filtered wastewater, the output end of the water pump 47 is connected with the water inlet pipe 421 through a conveying pipe assembly 46, the input end of the water pump 47 communicates with the inner cavity of the water tank 41, the water outlet pipe 422 communicates with the inner cavity of the water tank 41, and the conveying pipe assembly 46 comprises an electrically-controlled three-way valve and a water conveying pipe, two connecting ports in the vertical direction of the electrically-controlled three-way valve are connected with the water inlet pipe 421 and the output end of the water pump 47 respectively, and are used for sucking clean liquid from the inner cavity of the water tank 41 to the inner cavity of the fixed pipe 42 through the water inlet pipe 421, so as to backwash the components in the inner cavity of the fixed pipe 42;

[0062] Next, as shown in Figure 9 , the fixed pipe 42 is rotatably installed with a filtering assembly 49, the fixed pipe 42 is fixed with a motor one 44, the output end of the motor one 44 is fixed with a driving gear 441 matched with the filtering assembly 49, the filtering assembly 49 can be rotated through the motor one 44, so that the shear force of the waste liquid entering the filtering assembly 49 from the liquid inlet assembly 45 is increased, the flow field is reconfigured through mechanical rotation, the centrifugal shear is replaced by fluid kinetic energy, the separation efficiency is improved, the circulating flow is reduced, the pump power consumption is reduced, the shear force of the waste liquid is perpendicular to the membrane surface, and the peeling efficiency of the pollution layer is improved;

[0063] As shown in Figure 8 and Figure 12 , the fixed pipe 42 is fixed with a spray head 48 matched with the filtering assembly 49, the spray head 48 extends into the inner cavity of the fixed pipe 42 and faces the surface of the filtering assembly 49, the spray head 48 is connected with the water pipe between the conveying pipe assembly 46, the spray head 48 is connected with one of the water outlets of the electrically-controlled three-way valve in the conveying pipe assembly 46, through the electrically-controlled three-way valve in the conveying pipe assembly 46, the liquid conveyed by the conveying pipe assembly 46 can not only backwash through the water inlet pipe 421, but also wash the surface of the filtering assembly 49, so that the filtering and cleaning are realized at the same time;

[0064] Further, as shown in Figure 10 The filter assembly 49 comprises a ceramic membrane assembly 491, which is a prior art with a filtering impurity particle size range of less than or equal to 50 μm, and two sets of symmetrical mounting rings 492 fixed to the outer surface of the ceramic membrane assembly 491, and the two mounting rings 492 in the same set are movably connected between the fixed tube 42 and the tooth ring 493 fixed to the outer surface of the ceramic membrane assembly 491 and engaged with the drive gear 441, so that the mounting ring 492 rotates with the ceramic membrane assembly 491 when the drive gear 441 rotates with the tooth ring 493;

[0065] Further, as shown in Figure 11 The liquid inlet assembly 45 comprises a liquid inlet pipe 451 with a double-curved inner cavity to achieve smooth radial migration of particles and avoid mechanical damage, and a plurality of annular array vortex generators 452 fixed in the inner cavity of the liquid inlet pipe 451, which can generate reverse rotating vortexes to destroy the boundary layer, enhance turbulent mixing, and inhibit particle deposition.

[0066] It should be noted that the self-cleaning filter 10, the piston cylinder 33, the piston rod 34, the guide vane 37, the vortex generator 452, and the ceramic membrane assembly 491 are all prior arts, and their installation methods and control methods are also conventional designs, which will not be described in detail.

[0067] Example Three: This embodiment is a further limitation of the concentration and evaporation assembly 50 based on the first and second embodiments, to achieve the purpose of further concentrating and evaporating the waste water discharged by the ultrafiltration assembly 40.

[0068] One side of the ultrafiltration assembly 40 is fixed with the concentration and evaporation assembly 50, which comprises a reverse osmosis system and an evaporation and crystallization water inlet tank, the water outlet of the ultrafiltration assembly 40 enters the reverse osmosis system for concentration, the reverse osmosis concentrated water is sent to the evaporation and crystallization water inlet tank, and the waste water is evaporated and crystallized into ammonium sulfate crystals, which can generate actual economic value.

[0069] The working principle of the present application is that the structure composed of the cyclone separation assembly 21, the conical pipe one 22, the transition pipe 23, and the conical pipe two 24 can separate heavy particles and fine suspended solids in the waste water, the waste liquid discharged from the cyclone separation assembly 21 is filtered again by the wedge-shaped filter cartridge inside the self-cleaning filter 10, the waste liquid discharged from the self-cleaning filter 10 is filtered again by the filter assembly 49 inside the ultrafiltration assembly 40, and the filtration of suspended solids is realized by "cyclone separation + wedge-shaped filter cartridge + ceramic membrane ultrafiltration", which reduces the content of impurities in water and effectively filters high-ammonia-nitrogen waste water, so that the filtered waste water can be directly discharged.

[0070] The device can adjust the angle of the wastewater entering the inner cavity of the cyclone separation assembly 21 according to the viscosity of the wastewater when the wastewater enters the inner cavity of the cyclone separation assembly 21, thereby changing the rotational flow intensity of the wastewater, improving the separation efficiency of impurities in the wastewater, reducing the flocculation breaking rate, and reducing the struvite scaling rate, so as to enhance the anti-blocking performance.

[0071] In use, the high-ammonia-nitrogen wastewater reacted in the reaction box with the addition of sodium metaaluminate is conveyed into the inner cavity of the feed pipe 31 by the delivery pump. The wastewater is accelerated by the Venturi tube 32 in the inner cavity of the feed pipe 31 and then flows into the input pipe of the cyclone separation assembly 21. Then the wastewater enters the double-cone cyclone separation structure composed of the first cone pipe 22, the transition pipe 23, and the second cone pipe 24 to separate the heavy particles and fine suspended solids in the wastewater. The heavy particles are concentrated in the first cone pipe 22 and then discharged. The fine suspended solids and waste liquid are conveyed from the overflow discharge pipe of the cyclone separation assembly 21 to the inner cavity of the self-cleaning filter 10.

[0072] When the wastewater passes through the inner cavity of the Venturi tube 32, the pressure between the throat of the feed pipe 31 and the Venturi tube 32 is different according to the viscosity of the wastewater, so that the piston rod 34 can move in the inner cavity of the piston cylinder 33. The rack 35 connected by the piston rod 34 makes the gear 362 and a set of bevel gears 363 rotate, thereby making the guide vane 37 in the inner cavity of the feed pipe 31 rotate. The angle between the guide vane 37 and the axis of the feed pipe 31 changes, thereby achieving different effects. The shunt efficiency between the first cone pipe 22, the transition pipe 23, and the second cone pipe 24 can be improved, and the probability of clogging in the inner cavities of the first cone pipe 22, the transition pipe 23, and the second cone pipe 24 can be reduced.

[0073] The wastewater entering the inner cavity of the cyclone separation assembly 21 from the feed assembly 30 is cyclone in the cylindrical head of the cyclone separation assembly 21 and the first cone pipe 22, the transition pipe 23, and the second cone pipe 24. A vortex region can be formed by a set of step-arranged grooves 221 to disturb the deposition of particles. A plurality of spiral grooves 231 are arranged to force the particles to move along a spiral trajectory, avoiding direct accumulation, so that the inner cavity of the second cone pipe 24 forms a corrugated structure, enhances the boundary layer turbulence, prevents fine particles from adhering, and thus improves the separation efficiency in the inner cavities of the first cone pipe 22, the transition pipe 23, and the second cone pipe 24, facilitating the filtration of suspended solids.

[0074] Further, the fine suspended solids and waste liquid in the overflow discharge pipe of the cyclone separation assembly 21 enter the inner cavity of the self-cleaning filter 10 for secondary filtration. The waste liquid filtered twice by the self-cleaning filter 10 is conveyed from the output end of the self-cleaning filter 10 to the ultrafiltration assembly 40 for further filtration.

[0075] The waste liquid discharged from the output end of the self-cleaning filter 10 enters the inner cavity of the fixed pipe 42 through the liquid inlet assembly 45, and then the waste liquid is filtered through the filter assembly 49, so that the concentrated waste liquid is discharged from the liquid outlet pipe 43, and the filtered waste water is discharged into the inner cavity of the water tank 41 through the water outlet pipe 422;

[0076] The filter assembly 49 and the driving gear 441 are matched, so that the shear force of the waste liquid entering the filter assembly 49 from the liquid inlet assembly 45 is increased, the flow field is reconfigured by mechanical rotation, the centrifugal shear is replaced by fluid kinetic energy, the separation efficiency is improved, the circulation flow is reduced, the pump power consumption is reduced, the shear force of the waste liquid is perpendicular to the membrane surface, and the peeling efficiency of the pollution layer is improved;

[0077] The waste liquid flowing from the liquid inlet assembly 45 enters the inner cavity of the fixed pipe 42, and the driving gear 441 is rotated by the motor 44, so that the driving gear 441 rotates the ceramic membrane assembly 491 through the meshing gear ring 493, so that the liquid entering the ceramic membrane assembly 491 is no longer horizontally flowed, but tangentially flowed, so that the shear force of the waste liquid is increased;

[0078] Then, the ceramic membrane assembly 491 is matched with the water pump 47, the conveying pipe assembly 46, the filter assembly 49, the nozzle 48, the motor 44 and the driving gear 441, so that the ceramic membrane assembly 491 is filtered and cleaned, the probability of clogging of the ceramic membrane assembly 491 is reduced, and the filtering efficiency of the device is improved; the waste water in the inner cavity of the water tank 41 is pumped by the water pump 47, conveyed to the nozzle 48 through the conveying pipe assembly 46, sprayed to the surface of the rotating ceramic membrane assembly 491 through the nozzle 48, and the purpose of filtering and cleaning the ceramic membrane assembly 491 is achieved.

[0079] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A resource recovery device for high ammonia nitrogen wastewater, comprising a self-cleaning filter (10), characterized in that: The self-cleaning filter (10) is fixed with a cyclone separator (21) on one side by a bracket. The cyclone separator (21) is fixed with a feed assembly (30) at its input end. A cone tube (22) is fixed on one side of the cyclone separator (21). A transition tube (23) is fixed on one side of the cone tube (22). A cone tube (24) is fixed on one side of the transition tube (23). A sludge discharge assembly (25) is fixed on one side of the cone tube (24). An ultrafiltration assembly (40) is fixed on one side of the self-cleaning filter (10). The feeding assembly (30) includes a feeding pipe (31), a venturi tube (32) is fixed inside the feeding pipe (31), a piston cylinder (33) adapted to the venturi tube (32) is fixed on the feeding pipe (31), a piston rod (34) is fixed inside the piston cylinder (33), a rack (35) is fixed on the piston rod (34) through a connecting rod, a guide vane (37) is provided inside the feeding pipe (31), and a gear assembly (36) adapted to the guide vane (37) is fixed on the feeding pipe (31). The different viscosities of the wastewater passing through the inner cavity of the venturi tube (32) cause the pressure at the throat of the venturi tube (32) to change, thereby causing the piston cylinder (33) in the inner cavity of the piston rod (34) to move along the rack (35). Through the cooperation between the rack (35) and the gear assembly (36), the angle between the guide vane (37) and the axis of the feed pipe (31) changes.

2. The high ammonia nitrogen wastewater resource recovery device according to claim 1, characterized in that, The gear assembly (36) includes a vertical plate (361) fixedly connected to the feed pipe (31). A gear (362) meshing with a rack (35) is rotatably mounted on one side of the vertical plate (361). A set of meshing bevel gears (363) is mounted on one side of the gear (362). The bevel gears (363) in the vertical direction are coaxially fixedly connected to the gear (362). The bevel gears (363) in the horizontal direction are coaxially fixedly connected to the guide vanes (37).

3. The high ammonia nitrogen wastewater resource recovery device according to claim 1, characterized in that, The inner cavity of the first tapered tube (22) is provided with a set of stepped grooves (221), the inner cavity of the transition tube (23) is provided with a plurality of annular spiral grooves (231), and the inner cavity of the second tapered tube (24) is fixed with a plurality of corrugated protrusions (241).

4. The high ammonia nitrogen wastewater resource recovery device according to claim 1, characterized in that, The ultrafiltration assembly (40) includes a water tank (41), a water pump (47) is fixed on one side of the water tank (41), a fixed pipe (42) is fixed on one side of the water tank (41) by a connecting block, an outlet pipe (43) and an inlet assembly (45) are fixed on both sides of the fixed pipe (42), the inlet assembly (45) is fixedly connected to the output end of the self-cleaning filter (10), a centrally symmetrical inlet pipe (421) and an outlet pipe (422) are fixed on the outer surface of the fixed pipe (42), the output end of the water pump (47) is connected to the inlet pipe (421) through a delivery pipe assembly (46), the input end of the water pump (47) is connected to the inner cavity of the water tank (41), and the outlet pipe (422) is connected to the inner cavity of the water tank (41).

5. The high ammonia nitrogen wastewater resource recovery device according to claim 4, characterized in that, The filter assembly (49) is rotatably installed inside the fixed tube (42). A motor (44) is fixed on the fixed tube (42). A drive gear (441) adapted to the filter assembly (49) is fixed at the output end of the motor (44).

6. The high ammonia nitrogen wastewater resource recovery device according to claim 5, characterized in that, The fixed pipe (42) is fixed with a nozzle (48) that is compatible with the filter assembly (49), and the nozzle (48) is connected to the delivery pipe assembly (46) by a water pipe.

7. The high ammonia nitrogen wastewater resource recovery device according to claim 6, characterized in that, The filter assembly (49) includes a ceramic membrane assembly (491), on the outer surface of which two sets of symmetrical mounting rings (492) are fixed, and on the outer surface of which a gear ring (493) meshes with a drive gear (441) is fixed.

8. The high ammonia nitrogen wastewater resource recovery device according to claim 4, characterized in that, The liquid inlet assembly (45) includes a liquid inlet pipe (451), the inner cavity of which is a hyperboloid shape, and a plurality of annular array vortex generators (452) are fixed in the inner cavity of the liquid inlet pipe (451).

9. The high ammonia nitrogen wastewater resource recovery device according to claim 1, characterized in that, The ultrafiltration component (40) is fixed with a concentration evaporation component (50) on one side. The concentration evaporation component (50) includes a reverse osmosis system and an evaporation crystallization inlet tank.

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