Up-flow reactor capable of creating anaerobic environment

Abstract

The embodiment of the invention provides an up-flow reactor capable of creating an anaerobic environment, and relates to the technical field of water treatment. An up-flow reactor capable of creating an anaerobic environment comprises a reaction tank body, the reaction tank body is communicated with a feeding pipe, a discharging pipe, a waste discharging pipe and a sewage discharging pipe which are provided with one-way valves respectively, an embedded housing is arranged at the top of the reaction tank body in a triangular equidistant mode, and a blowing housing communicated and matched with the reaction tank body is fixed to the outer side of the embedded housing; the reaction tank body is internally provided with a material distribution assembly used for aeration feeding of inert gas and a ferrous ion solution in a triangular equidistant shape, the material distribution assembly comprises a servo motor fixed to the top of the reaction tank body, and the embedded housing is internally provided with an emptying assembly used for exhausting air. On the basis of a fully and rapidly created anaerobic environment, the effect that phosphate ions and ferrous ions in wastewater are crystallized to generate high-purity blue iron ore is efficiently achieved by adopting a mode of combining uniform material distribution, comprehensive mixing and circulating crystallization.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of water treatment, and particularly relates to an upflow reactor capable of creating an anaerobic environment. BACKGROUND

[0002] A large amount of phosphorus is contained in urban sewage and industrial wastewater. As an important resource, the phosphorus resource is converted into a raw material of blue vitriol, which is a very stable phosphorus-iron compound, and lithium ferrous phosphate, which is one of main synthetic raw materials of power lithium ion batteries. In order to convert and recycle the phosphorus in wastewater into the raw material of blue vitriol, the methods for recycling phosphorus products from wastewater containing phosphorus currently include chemical precipitation, crystallization, adsorption / desorption, biological method and ion exchange. Among these methods, the crystallization method is widely used.

[0003] In the prior art (patent application with the patent name of high-efficiency upflow anaerobic reactor and the announcement number of CN114133031B), the problem of incomplete anaerobic digestion in the prior art is solved. In the process of implementing the technical scheme, it is found that at least the following problems exist in the prior art: In the process of recycling the phosphorus resource in wastewater by using the blue vitriol crystallization method, the upflow reactor is used. During the generation of blue vitriol crystals from phosphate ions and ferrous ions in wastewater, an anaerobic environment needs to be maintained in the upflow reactor, and then the oxygen in the upflow reactor needs to be consumed and discharged. The anaerobic consumption effect is not ideal, and the emptying is not sufficient, which affects the generation of blue vitriol crystals and the removal of phosphorus. SUMMARY

[0004] The present application aims to at least solve the problem that in the prior art, the blue vitriol crystals with high purity cannot be generated by using the combination of uniform feeding, comprehensive mixing and cyclic crystallization in the anaerobic environment which is created in a sufficient and rapid manner. To this end, the present application provides an upflow reactor capable of creating an anaerobic environment.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the present application is as follows: An upflow reactor capable of creating an anaerobic environment, comprising a reaction tank body, the reaction tank body is respectively communicated with a feeding pipe with a one-way valve, a discharging pipe, a waste discharging pipe and a blowdown pipe, and a triangular equidistant inner embedded shell is arranged on the top of the reaction tank body, and a blowdown shell which is communicated and matched with the reaction tank body is fixed to the outer side of the inner embedded shell; The reaction tank body is provided with a feeding assembly for aeration feeding of inert gas and ferrous ion solution in a triangular equidistant manner, the feeding assembly comprises a servo motor fixed on the top of the reaction tank body, an air discharging assembly is arranged in the inner embedded shell, and the air discharging assembly comprises a shunt head communicated with the outer end of the inner embedded shell; The air blowing cover is provided with an air blowing assembly for air guiding, and the air blowing assembly comprises a guiding fan rotating in the air blowing cover and blowing upward through the reserved bevel between the air blowing cover and the reaction tank body, and the middle part of the reaction tank body is provided with a defoaming assembly for bubble dispersion, material mixing and uniform crystallization.

[0006] Preferably, the material distributing assembly further comprises a main pinion fixed on the output shaft of the servo motor, the outer side of the main pinion is engaged with a slave pinion in a triangular equidistant shape, and a material distributing pipe rotatingly matched with the reaction tank body is embedded in the slave pinion, the material distributing pipe is designed in a hollow structure, a jet head for aeration of inert gas and ferrous ion solution is communicated at the bottom end of the material distributing pipe, and the inert gas is used to create an anaerobic environment in the reaction tank body.

[0007] Preferably, the emptying assembly further comprises a first main bevel gear sleeved on the three material distributing pipes, a first slave bevel gear is engaged on the outer side of the three groups of first main bevel gears, an exhaust fan matched with the embedded cover negative pressure is fixed on the outer side of the first slave bevel gear, and an exhaust cylinder for air discharge is communicated on the shunt head through a one-way valve, and a strip-shaped opening is vertically formed around the exhaust cylinder.

[0008] Preferably, the air blowing assembly further comprises a second main bevel gear fixed on the outer side of the three exhaust fans, and a second slave bevel gear is engaged on the outer side of the second main bevel gear, the bottom of the second slave bevel gear is fixed with a worm rotatingly matched with the air blowing cover, and a worm wheel fixedly matched with the guiding fan is engaged on the outer side of the worm.

[0009] Preferably, the defoaming assembly comprises a reciprocating screw rod fixed on the output shaft of the servo motor through a shaft coupling, a screw rod cylinder is threadedly connected on the reciprocating screw rod, a lifting disc slidingly matched with the reaction tank body is arranged at the bottom of the screw rod cylinder, and a gathering cover for material gathering is fixed on the bottom of the lifting disc, and a defoaming net for bubble dispersion is embedded on the gathering cover in a triangular equidistant shape.

[0010] Preferably, the top end of the three material distributing pipes is communicated with a communication end, and a rotating end is rotatingly connected on the communication end, and the communication end and the rotating end rotate while maintaining mutual communication state.

[0011] Preferably, the embedded cover is provided with an air inlet around the inner side of the reaction tank body, and a uniform flow plate for uniform flow of the exhaust fan wind pressure is embedded in the embedded cover.

[0012] Preferably, the outer end of the shunt head is communicated with a backflow pipe, and a cold and hot all-in-one machine for temperature control adjustment is communicated with the backflow pipe through a three-way valve at the middle segment of the backflow pipe.

[0013] Preferably, the bottom of the lifting disc is rotationally connected with a turbulence fan for mixing and uniform crystallization of the material, and a wall scraping ring for cleaning the inner wall of the reaction tank is fixed on the outer ring of the lifting disc, and a sliding sleeve embedded on the lifting disc is rotationally matched with three distribution pipes.

[0014] The upflow reactor capable of creating an anaerobic environment has the following advantages: 1. The upflow reactor capable of creating an anaerobic environment, the control servo motor drives the three groups of distribution pipes on the driven bevel gears to rotate synchronously through the main bevel gear, the three distribution pipes drive the jet head to rotate in the wastewater in the reaction tank, and then the nitrogen gas belonging to the inert gas category is supplied into one of the distribution pipes through the first supply pipe, so that the supplied nitrogen gas is injected into the wastewater in a spiral flow. Since nitrogen gas is difficult to dissolve in water, oxygen in the wastewater is extracted and discharged from the beginning, so that an anaerobic environment composed of nitrogen gas is quickly formed in the reaction tank, and then ferrous ion solution is correspondingly fed into the wastewater through the second supply pipe and the third supply pipe, so that a large amount of phosphorus in the wastewater reacts with the ferrous ion solution under the created anaerobic environment, and the reaction is detected by the external oxidation-reduction potential meter, so that a large amount of phosphorus in the wastewater and the ferrous ion solution undergo a blue vitriol crystallization reaction under anaerobic and low oxidation-reduction potential conditions, achieving high conversion recovery rate and high purity effect.

[0015] 2. The upflow reactor capable of creating an anaerobic environment, the three distribution pipes drive the three groups of exhaust fans in the three groups of embedded housings to rotate under negative pressure through the three groups of first main bevel gears and first driven bevel gears, and the oxygen extracted from the nitrogen gas is discharged under negative pressure, further improving the creation efficiency and fullness of the anaerobic environment in the reaction tank, and the extracted oxygen is discharged to the outside by the exhaust cylinder on the three groups of flow dividing heads, so as to prevent excessive oxygen from remaining and affecting the crystallization reaction of phosphorus and ferrous solution in the subsequent wastewater and the operation of generating blue vitriol crystalline precipitate.

[0016] 3、The upflow reactor capable of creating anaerobic environment, three sets of exhaust fans drive three worms to rotate linearly through three sets of second main bevel gears and second slave bevel gears, the three worms drive three sets of guide fans on the worm gears to rotate in three sets of blowing shells and pre-evacuate oxygen in the reaction tank body which is not filled with nitrogen, so that the subsequent supplied nitrogen quickly occupies the reaction tank body, improves the extrusion efficiency of nitrogen extruding oxygen, and after the anaerobic environment is created, the cold and heat integrated machine on the three three-way valves provides cold source or heat source supply, and the cold source or heat source is supplied into the reaction tank body through the three sets of exhaust fans, and the rotating three sets of exhaust fans reflow the cold source or heat source supplied into the reaction tank body to the three sets of blowing shells through the return flow pipe, and the cold source or heat source is sequentially circulated, so that the airflow in the reaction tank body is quickly refrigerated or heated, so that the reaction tank body can be adjusted in temperature control while maintaining the anaerobic environment, and the best temperature control environment is maintained, so that the oxidation-reduction reaction of a large amount of phosphorus and ferrous ion solution in the wastewater is provided, and the conversion and recovery efficiency is further improved; at the same time, the lifting disc on the screw rod cylinder is driven by the servo motor through the reciprocating screw rod to reciprocatingly lift and extrude in the wastewater and ferrous ion solution area in the reaction tank body, and the defoaming net on the gathering cover is driven by the reciprocating lifting disc to defoam the bubbles generated by the material, so that a large amount of phosphorus and ferrous ion solution is fully converted to prevent too many bubbles from affecting the conversion and recovery efficiency, and the lifting disc drives the turbulence fan to follow the action in the material, and under the impact of the water flow, the turbulence fan rotates in the gathering cover to quickly and uniformly mix a large amount of phosphorus and ferrous ion solution in the material; and the three sets of sealing shells are driven by the reciprocating lifting disc to follow the action, when the lifting disc moves downward, one end of the three sets of steel wires is fixed on the three sets of embedded shells, and the lifting disc drives the three sets of sealing shells to rotate, the rotating three sets of winding wheels drive the turbulence frame on the clockwork disc to rotate forward in the lifting disc, and vice versa, under the reset force of the clockwork disc, the turbulence frame is forced to rotate reversely, and the turbulence treatment is performed on the passing material area, so that the mixing degree and reaction saturation of a large amount of phosphorus and ferrous ion solution are further improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and other related drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 The structure schematic diagram of the upflow reactor capable of creating anaerobic environment of the present application; Figure 2 The structure sectional view of the upflow reactor capable of creating anaerobic environment of the present application; Figure 3 An initial state internal view of an upflow reactor structure capable of creating an anaerobic environment according to the present application; Figure 4 An operational state internal view of an upflow reactor structure capable of creating an anaerobic environment according to the present application; Figure 5 A bottom view of a cloth assembly structure according to the present application; Figure 6 An exploded view of a cloth assembly structure according to the present application; Figure 7 A partial sectional view of a cloth tube structure according to the present application; Figure 8 A side view of an emptying assembly and a pushing assembly structure according to the present application; Figure 9 A partial side view of an emptying assembly and a pushing assembly structure according to the present application; Figure 10 A partial side view of a pushing assembly structure according to the present application; Figure 11 A bottom view of a flow dividing head, a return pipe, and a cold and hot all-in-one structure according to the present application; Figure 12 An initial state top view of a defoaming assembly and a turbulence assembly structure according to the present application; Figure 13 An operational state bottom view of a defoaming assembly and a turbulence assembly structure according to the present application; Figure 14 An exploded view of a defoaming assembly structure according to the present application; Figure 15 An exploded view of a lifting disc and a turbulence assembly structure according to the present application; Figure 16 A bottom view of a lifting disc and a turbulence assembly structure according to the present application; Figure 17 A sectional view of a turbulence assembly structure according to the present application; Figure 18 A partial side view of a turbulence assembly structure according to the present application; Figure 19 A partial sectional view of a reaction tank body, an embedded cover, and a pushing cover structure according to the present application.

[0019] Marked description in the figure: 1, reaction tank body; 2, inner embedded shell; 3, drum cover; 41, servo motor; 42, main circular gear; 43, from circular gear; 44, cloth pipe; 45, jet head; 51, first main bevel gear; 52, first from bevel gear; 53, exhaust fan; 54, shunt head; 55, exhaust cylinder; 61, second main bevel gear; 62, second from bevel gear; 63, worm; 64, worm wheel; 65, guide fan; 71, reciprocating screw rod; 72, screw rod cylinder; 73, lifting disc; 74, gather cover; 75, defoaming net; 81, sealing shell; 82, winding wheel; 83, steel wire rope; 84, spring disc; 85, spoiler frame; 9, communication end; 10, rotating end; 11, first supply pipe; 12, second supply pipe; 13, third supply pipe; 14, air inlet; 15, flow equalizing plate; 16, backflow pipe; 17, three-way valve; 18, cold and hot integrated machine; 19, spoiler fan; 20, wall scraping ring; 21, sliding sleeve. DETAILED DESCRIPTION

[0020] The present application will be described in detail below in conjunction with the accompanying drawings and specific embodiments: As Figures 1-19 shown, the upflow reactor capable of creating anaerobic environment of the present application comprises a reaction tank body 1, which is respectively communicated with a feed pipe, a discharge pipe, a waste discharge pipe and a blowdown pipe provided with a one-way valve, and is provided with an inner embedded shell 2 in a triangular equidistant shape at the top of the reaction tank body 1, and the outer side of the inner embedded shell 2 is fixed with a drum cover 3 communicated and matched with the reaction tank body 1; The reaction tank body 1 is provided with a cloth assembly for inert gas, phosphorus-rich solution and ferrous ion solution aeration feeding in a triangular equidistant shape, and the cloth assembly comprises a servo motor 41 fixed at the top of the reaction tank body 1, so that the nitrogen gas supplied is spirally jetted into the wastewater. Since nitrogen gas is difficult to dissolve in water, the oxygen in the wastewater is first extracted and discharged, and then the oxygen in the reaction tank body 1 is continuously extracted and discharged, so that an anaerobic environment composed of nitrogen gas is quickly formed in the reaction tank body 1. The inner embedded shell 2 is provided with a discharge assembly for discharging air, and the discharge assembly comprises a shunt head 54 communicated at the outer end of the inner embedded shell 2, which is helpful for the oxidation-reduction reaction of a large amount of phosphorus and ferrous ion solution in the wastewater, and the efficiency is higher. The drum cover 3 is provided with a drum assembly for air flow guide, and the drum assembly comprises a guide fan 65 rotating in the drum cover 3, and is upwardly drummed through the reserved bevel between the drum cover 3 and the reaction tank body 1, so that the subsequent nitrogen gas supplied quickly occupies the position in the reaction tank body 1, improves the extrusion efficiency of nitrogen gas extruding oxygen, and the middle part of the reaction tank body 1 is provided with a defoaming assembly for bubble dissipation, material mixing and uniform crystallization, which defoams the bubbles generated by the material, forces a large amount of phosphorus and ferrous ion solution to fully convert, so as to prevent too many bubbles from affecting the conversion and recovery efficiency.

[0021] As Figures 5-14As shown, the cloth assembly further comprises a main gear 42 fixed on the output shaft of the servo motor 41, and the outside of the main gear 42 is engaged with a slave gear 43 in a triangular equidistant shape, and a cloth pipe 44 that rotates with the reaction tank body 1 is embedded in the slave gear 43. The hollow design controls the servo motor 41 to drive the three sets of cloth pipes 44 on the slave gear 43 through the main gear 42 to rotate synchronously, and the jet head 45 connected at the bottom of the cloth pipe 44 is used for inert gas and ferrous ion solution aeration feeding, and the inert gas is used to create an anaerobic environment in the reaction tank body 1, and the ferrous ion solution is used for ferrous phosphate crystal precipitation and crystallization. Three cloth pipes 44 drive the jet head 45 to rotate in the wastewater in the reaction tank body 1, and then correspondingly supply nitrogen gas belonging to the inert gas category into one of the cloth pipes 44 through the first supply pipe 11, so that the supplied nitrogen gas is spirally injected into the wastewater. Because nitrogen is difficult to dissolve in water, oxygen in the wastewater is used to expel and discharge the oxygen in the reaction tank body 1, so that an anaerobic environment composed of nitrogen gas is quickly formed in the reaction tank body 1. The top end of the three cloth pipes 44 is communicated with a communication end 9, and the rotating end 10 is rotatably connected to the communication end 9, and the communication end 9 and the rotating end 10 rotate at the same time, and also maintain mutual communication state with each other. The outer ends of the three sets of rotating ends 10 are respectively communicated with the first supply pipe 11, the second supply pipe 12 and the third supply pipe 13 through the metering valve, and are used for the delivery of inert gas and ferrous ion solution, which is beneficial to the inert gas and ferrous ion solution corresponding to the first supply pipe 11, the second supply pipe 12 and the third supply pipe 13 in turn through the three sets of rotating ends 10 and the communication end 9 to reach the three cloth pipes 44, realizing uniform distribution while providing convenience for the creation of anaerobic environment by introducing nitrogen into the reaction tank body 1.

[0022] The exhaust assembly further comprises a first main bevel gear 51 sleeved on the three cloth pipes 44, and a first slave bevel gear 52 engaged on the outside of the three sets of first main bevel gears 51, and the outside of the first slave bevel gear 52 is fixed with an exhaust fan 53 matched with the negative pressure of the embedded shell 2. The three sets of exhaust fans 53 are driven by the three cloth pipes 44 through the three sets of first main bevel gears 51 and the first slave bevel gears 52 to rotate in the three sets of embedded shells 2 under negative pressure, and the oxygen expelled by nitrogen is discharged under negative pressure, further improving the creation efficiency and fullness of the anaerobic environment in the reaction tank body 1, and the exhaust cylinder 55 for air discharge is communicated on the shunt head 54 through the one-way valve, and the exhaust cylinder 55 is vertically provided with a strip-shaped opening around, and the expelled oxygen is discharged to the outside through the three sets of exhaust cylinders 55 on the shunt head 54, so as to prevent too much oxygen from remaining and affecting the subsequent large amount of phosphorus and ferrous ion solution to be converted into ferrous phosphate crystal seeds, which is helpful for the crystallization and precipitation reaction of a large amount of phosphorus and ferrous ion solution in the wastewater, and the efficiency is higher; The drum pushing assembly further comprises a second main bevel gear 61 fixed outside the three sets of exhaust fans 53, and a second slave bevel gear 62 engaged outside the second main bevel gear 61, and the bottom of the second slave bevel gear 62 is fixed with a worm 63 rotatingly matched with the drum cover 3. First, the three sets of exhaust fans 53 drive the three worms 63 to rotate linearly through the three sets of second main bevel gears 61 and the second slave bevel gears 62, and the outside of the worm 63 is engaged with a worm gear 64 fixedly matched with a guide fan 65. The three worms 63 drive the guide fan 65 on the three sets of worm gears 64 to rotate at high pressure in the three sets of drum covers 3, and the oxygen in the reaction tank body 1 not filled with nitrogen is pre-evacuated, so that the subsequent nitrogen supplied quickly occupies the space in the reaction tank body 1, improving the extrusion efficiency of nitrogen extruding oxygen. The inner embedded cover 2 is provided with an air inlet 14 near the inner side of the reaction tank body 1, which is beneficial to the exhaust fan 53 to exhaust the air containing oxygen in the reaction tank body 1 through the air inlet 14, and the inner embedded cover 2 is embedded with a flow equalizing plate 15 for wind pressure flow equalization of the exhaust fan 53, which performs flow equalization treatment on the inhaled air to prevent turbulence phenomenon at the exhaust fan 53, which is beneficial to the oxygen evacuation work. The outer end of the shunt head 54 is communicated with a backflow pipe 16, and the backflow pipe 16 is communicated with a cold and hot all-in-one machine 18 for temperature control adjustment at the middle segment of the backflow pipe 16 through a three-way valve 17. The cold source or heat source is supplied by the cold and hot all-in-one machine 18, and is supplied into the reaction tank body 1 through the backflow pipe 16 on the three-way valve 17 under the pressure boosting of the three sets of guide fans 65, realizing the temperature control adjustment effect in the reaction tank body 1, so as to reach the best temperature control environment.

[0023] The defoaming assembly comprises a reciprocating screw rod 71 fixed on the output shaft of the servo motor 41 through a shaft coupling, a screw rod cylinder 72 threadedly connected to the reciprocating screw rod 71, and a lifting disc 73 slidingly matched with the reaction tank body 1 arranged at the bottom of the screw rod cylinder 72. First, the lifting disc 73 on the screw rod cylinder 72 is driven by the servo motor 41 to reciprocatingly lift and press in the wastewater and ferrous ion solution area in the reaction tank body 1, and a gathering cover 74 for material gathering is fixed at the bottom of the lifting disc 73. The defoaming net 75 for bubble dissipation is embedded in a triangular equidistant manner on the gathering cover 74. The defoaming net 75 on the gathering cover 74 is driven by the reciprocating lifting disc 73 to perform defoaming treatment on the bubbles generated by the material, forcing a large amount of phosphorus and ferrous ion solution to be fully converted, so as to prevent excessive bubbles from affecting the conversion and recovery efficiency. The bottom of the lifting disc 73 is rotationally connected with a turbulence fan 19 for mixing and uniform crystallization of the material, which assists in turbulence mixing of the large amount of phosphorus and ferrous ion solution in the wastewater, and a wall scraping ring 20 is fixed to the outer ring of the lifting disc 73 for cleaning the inner wall of the reaction tank body 1, which scrapes and cleans the impurities attached to the inner wall of the reaction tank body 1, and a sliding sleeve 21 is embedded on the lifting disc 73 and rotationally cooperates with the three distribution pipes 44, which rotationally supports the three distribution pipes 44 and also satisfies the lifting action of the lifting disc 73 on the three distribution pipes 44 in the rotating state, thereby ensuring the stability of the two.

[0024] As shown in Figures 15-18 During the precipitation and crystallization of the material solution in the reaction tank body 1, the turbulence assisting function is not provided, which leads to insufficient mixing and reaction saturation of the large amount of phosphorus and ferrous ion solution in the wastewater, thereby affecting the conversion recovery rate of the ferrous phosphate seed in the subsequent process. A turbulence assembly is arranged on the defoaming assembly, and the turbulence assembly comprises a sealed shell 81 embedded in the lifting disc 73 in a triangular equidistant shape, two ends of the sealed shell 81 are rotationally arranged with winding wheels 82, and steel wires 83 are wound on the three groups of winding wheels 82. The top end of the steel wire 83 is fixed to the three groups of embedded shells 2, and the bottom end is wound and fixed to the winding wheel 82. The three groups of sealed shells 81 are driven to move by the reciprocating lifting disc 73. When the lifting disc 73 moves downward, one end of the three groups of steel wires 83 is fixed to the three groups of embedded shells 2, which forces the lifting disc 73 to drive the winding wheels 82 in the three groups of sealed shells 81 to pull and rotate. A spring disc 84 is arranged on the inner side of the three groups of winding wheels 82 and positioned with the sealed shell 81, and a turbulence frame 85 for turbulence mixing of the large amount of phosphorus and ferrous ion solution. The three groups of rotating winding wheels 82 drive the turbulence frame 85 on the spring disc 84 to rotate forward in the lifting disc 73, and vice versa. Under the reset force of the spring disc 84, the turbulence frame 85 is forced to rotate in the opposite direction, which performs turbulence treatment on the passing material area, thereby further improving the mixing degree and reaction saturation of the large amount of phosphorus and ferrous ion solution.

[0025] The working principle of the upflow reactor capable of creating an anaerobic environment is as follows: first, the servo motor 41 is controlled to be turned on, and the three groups of distribution pipes 44 are synchronously rotated by the main circular gear 42 driving the three groups of slave circular gears 43. The three distribution pipes 44 drive the exhaust fans 53 on the three groups of first slave bevel gears 52 through the first main bevel gear 51 to rotate in negative pressure in the three groups of embedded shells 2. Then, the three groups of exhaust fans 53 first exhaust the air containing oxygen in the reaction tank body 1 to the three groups of flow dividing heads 54, and then the three exhaust cylinders 55 exhaust to the outside. Meanwhile, the three sets of exhaust fans 53 drive the three sets of worm gears 63 on the second from bevel gears 62 to rotate through the second main bevel gears 61, and the three sets of guide fans 65 on the worm wheels 64 rotate in the three sets of drum cover housings 3 under pressure, so that the three sets of guide fans 65 blow the air containing oxygen in the reaction tank body 1 through the upward inclined port, combined with the three sets of exhaust fans 53, to quickly exhaust the air containing oxygen; After the reaction tank body 1 is in an empty state, nitrogen is supplied into one of the rotating distribution pipes 44 through the first supply pipe 11, and then the nitrogen supplied into the distribution pipe 44 is aerated and sprayed by the jet head 45 into the wastewater below the lifting disc 73, and the nitrogen supplied into the reaction tank body 1 is sprayed through the aeration holes reserved in the distribution pipe 44, to aerate the wastewater and reduce the dissolved oxygen in the wastewater; Since nitrogen is difficult to dissolve in water, it also aerates and consumes the oxygen in the wastewater, and the supplied nitrogen also occupies the space of the oxygen in the wastewater, and the nitrogen supplied into the reaction tank body 1 also quickly occupies the space of the air containing oxygen, forcing the air containing oxygen to be squeezed out through the three exhaust cylinders 55 that are opened again, until an anaerobic environment is created in the reaction tank body 1; Then, the one-way valves at the three exhaust cylinders 55 are closed, the three-way valves 17 on the three return pipes 16 are opened, and the three sets of cold and hot integrated machines 18 are opened, and the three sets of cold and hot integrated machines 18 provide cold or heat sources as required. At this time, the three sets of exhaust fans 53 still rotating blow the cold or heat sources supplied by the three sets of cold and hot integrated machines 18 into the reaction tank body 1 through the upward inclined ports of the three sets of drum cover housings 3, to quickly heat or cool the reaction tank body 1; At this time, the three sets of exhaust fans 53 still rotating also suck the hot or cold gas in the reaction tank body 1 into the three sets of distribution heads 54 under negative pressure, and the one-way valves at the return pipes 16 of the three sets of distribution heads 54 are opened, and the hot or cold gas sucked under negative pressure is reflowed to the three sets of drum cover housings 3 through the return pipes 16 of the three sets of distribution heads 54, and then re-supplied into the reaction tank body 1 by the three sets of exhaust fans 53. In this way, the reaction tank body 1 is cycled to heat or cool until the temperature in the reaction tank body 1 is adjusted to the best state; After that, similarly, ferrous ion solution is supplied into the other two rotating distribution pipes 44 through the second supply pipe 12 and the third supply pipe 13, respectively, and is aerated and sprayed by the rotating jet head 45 into the wastewater below the lifting disc 73. During this period, the oxidation-reduction potential is detected by the oxidation-reduction potential meter to keep the oxidation-reduction potential at a low potential, and the pH value of the solution is detected to keep it weakly alkaline. Under the anaerobic environment and temperature control environment, a large amount of phosphorus in the wastewater is forced to quickly crystallize and precipitate with the ferrous ion solution; Meanwhile, the servo motor 41 drives the lifting disc 73 on the screw rod cylinder 72 to reciprocatingly move up and down in the wastewater in the reaction tank 1, and the defoaming net 75 on the gathering cover 74 driven by the lifting disc 73 is used to dissipate the bubbles generated in the wastewater, so that the large amount of phosphorus and ferrous ion solution in the wastewater is fully crystallized and precipitated, and the turbulence fan 19 is used to fully mix the large amount of phosphorus and ferrous ion solution in the wastewater, and the wall scraping ring 20 is used to scrape and clean the attachments on the inner wall of the reaction tank 1. Meanwhile, the lifting disc 73 also drives the three groups of sealing cover shells 81 to move, since the top ends of the three groups of steel wires 83 are fixed to the three groups of inner-embedded cover shells 2, and the bottom ends are fixed to the three groups of winding wheels 82, when the lifting disc 73 drives the three groups of sealing cover shells 81 to move down into the wastewater, since the lengths of the three groups of steel wires 83 do not change, the three groups of steel wires 83 drive the three groups of winding wheels 82 to positively rotate in the three groups of sealing cover shells 81, and at the same time, the three groups of clockwork discs 84 are wound, and the three groups of winding wheels 82 positively rotate to drive the three groups of turbulence frames 85 to positively mix the large amount of phosphorus and ferrous ion solution in the wastewater, when the lifting disc 73 drives the three groups of sealing cover shells 81 to move up and reset, conversely, the three groups of steel wires 83 lose the downward pulling force, and under the reset force of the three groups of clockwork discs 84, the three groups of turbulence frames 85 that are about to be separated from the wastewater are forced to again reversely mix the large amount of phosphorus and ferrous ion solution, and so on, so as to fully mix the large amount of phosphorus and ferrous ion solution. After the large amount of phosphorus and ferrous ion solution in the wastewater fully reacts, the blue vitriol crystal with small particle size is generated, and the high-purity blue vitriol crystal is obtained after the blue vitriol crystal with small particle size is used as a crystal seed to circulate and crystallize.

[0026] It should be noted that the specific models and specifications of the servo motor 41, the cold and hot all-in-one machine 18, and various valves and sensors need to be selected and determined according to the actual specifications of the device, and the specific selection and calculation method adopts the existing technology in the field, and therefore will not be described in detail.

[0027] The power supply circuit of the servo motor 41, the cold and hot all-in-one machine 18, and various valves and sensors is clear to those skilled in the art, and will not be described in detail here.

[0028] It can be understood that the present application is described by some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present application. In addition, under the guidance of the present application, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are within the scope of protection of the present application.

Claims

1. An upflow reactor capable of creating an anaerobic environment, comprising a reaction vessel (1), characterized in that: The reaction tank (1) is connected to a feed pipe, a discharge pipe, a waste discharge pipe and a sewage discharge pipe with a one-way valve. An embedded cover (2) is provided in a triangular equidistant shape on the top of the reaction tank (1), and a drum cover (3) that communicates and cooperates with the reaction tank (1) is fixed on the outside of the embedded cover (2). The reaction tank (1) is provided with a fabric assembly for aeration and feeding of inert gas and ferrous ion solution in a triangular equidistant shape. The fabric assembly includes a servo motor (41) fixed on the top of the reaction tank (1). The inner cover (2) is provided with an air venting assembly for air venting. The air venting assembly includes a diverter head (54) connected to the outer end of the inner cover (2). The drum casing (3) is provided with a drum assembly for air guidance, and the drum assembly includes a guide fan (65) rotating inside the drum casing (3) and blowing upward through the reserved oblique opening between the drum casing (3) and the reaction tank (1). The middle part of the reaction tank (1) is provided with a defoaming assembly for bubble dissipation, material mixing and uniform crystallization.

2. The upflow reactor capable of creating an anaerobic environment according to claim 1, characterized in that: The fabric assembly also includes a main spur gear (42) fixed on the output shaft of the servo motor (41), and a secondary spur gear (43) is meshed with the outer side of the main spur gear (42) in a triangular equidistant shape. A fabric tube (44) that rotates with the reaction tank (1) is embedded in the secondary spur gear (43), which adopts a hollow design, and a jet head (45) connected to the bottom end of the fabric tube (44) for aeration and feeding of inert gas and ferrous ion solution. The inert gas is used to create an anaerobic environment in the reaction tank (1), and the ferrous ion solution is used for crystal precipitation and crystallization.

3. An upflow reactor capable of creating an anaerobic environment according to claim 2, characterized in that: The venting assembly also includes a first main bevel gear (51) sleeved on three fabric tubes (44), and a first driven bevel gear (52) meshing on the outside of the three sets of first main bevel gears (51). An exhaust fan (53) that is matched with the negative pressure of the inner cover (2) is fixed on the outside of the first driven bevel gear (52), and an exhaust pipe (55) for air discharge is connected to the diverter head (54) through a one-way valve. The exhaust pipe (55) has vertical strip openings around its perimeter.

4. An upflow reactor capable of creating an anaerobic environment according to claim 3, characterized in that: The drum assembly also includes a second main bevel gear (61) fixed to the outside of the three sets of exhaust fans (53), and a second driven bevel gear (62) meshing with the outside of the second main bevel gear (61). The bottom of the second driven bevel gear (62) is fixed with a worm gear (63) that rotates with the drum cover (3), and a worm wheel (64) that is fixedly meshed with the guide fan (65) is meshed with the outside of the worm gear (63).

5. An upflow reactor capable of creating an anaerobic environment according to claim 4, characterized in that: The defoaming assembly includes a reciprocating lead screw (71) fixed to the output shaft of a servo motor (41) via a coupling, and a lead screw cylinder (72) is threaded onto the reciprocating lead screw (71). A lifting plate (73) that slides with the reaction vessel (1) is provided at the bottom of the lead screw cylinder (72), and a gathering cover (74) fixed to the bottom of the lifting plate (73) for material gathering is provided. A defoaming net (75) for bubble dissipation is embedded in the gathering cover (74) in a triangular equidistant shape.

6. An upflow reactor capable of creating an anaerobic environment according to claim 5, characterized in that: The top ends of the three fabric tubes (44) are connected to a connecting end (9), and a rotating end (10) is rotatably connected to the connecting end (9). While the connecting end (9) and the rotating end (10) rotate, they also maintain mutual communication.

7. An upflow reactor capable of creating an anaerobic environment according to claim 6, characterized in that: The outer ends of the three sets of rotating ends (10) are respectively connected to the first supply pipe (11), the second supply pipe (12) and the third supply pipe (13) through metering valves, and are used for the delivery of inert gas and ferrous ion solution.

8. An upflow reactor capable of creating an anaerobic environment according to claim 7, characterized in that: The inner casing (2) has an air intake (14) on the inner circumference near the reaction vessel (1), and a flow equalization plate (15) for equalizing the air pressure of the exhaust fan (53) is embedded in the inner casing (2).

9. An upflow reactor capable of creating an anaerobic environment according to claim 8, characterized in that: The outer end of the diverter (54) is connected to a return pipe (16), and the middle section of the return pipe (16) is connected to a cooling and heating unit (18) for temperature control through a three-way valve (17).

10. An upflow reactor capable of creating an anaerobic environment according to claim 9, characterized in that: The bottom of the lifting plate (73) is rotatably connected to a baffle fan (19) for material mixing and uniform crystallization, and a scraping ring (20) for cleaning the inner wall of the reaction tank (1) is fixed on the outer ring of the lifting plate (73), as well as a sliding sleeve (21) embedded in the lifting plate (73) and rotatingly cooperating with the three material distribution pipes (44).

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