Wastewater treatment equipment in iron circulation catalytic reaction tower

Abstract

The invention discloses wastewater treatment equipment in an iron circulation catalytic reaction tower, and relates to the technical field of wastewater treatment, and the wastewater treatment equipment comprises a tank body mechanism. According to the wastewater treatment equipment in the iron circulation catalytic reaction tower, through the design of the tank body mechanism, wastewater enters the interior of the tank body shell from one side of the feeding mechanism, an iron catalyst is injected into an iron circulation pipe to enter the interior of the tank body shell, a central rotating shaft is controlled to rotate through a first motor, a rotating plate mechanism is driven to rotate, and the effect of stirring the wastewater and chemicals is achieved; the reaction kettle can be used for promoting substance mixing, providing a uniform catalyst environment for a subsequent catalytic reaction, improving the consistency and stability of the reaction, accelerating the reaction speed, promoting iron circulation and preventing scaling and precipitation, and after precipitation for a certain time, fluid flows out from one side of the discharging pipe, so that subsequent treatment is facilitated, impurities in the precipitation process are adsorbed at the bottom of the tank body shell, and the precipitation effect is improved. Impurities are cleaned through the stirring mechanism and discharged to one side of the blow-off pipe, and the situation that the follow-up operation effect is affected due to excessive impurity precipitation is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and specifically to a wastewater treatment device inside an iron cycle catalytic reaction tower. Background Art

[0002] The working principle of the iron cycle catalytic reaction tower is based on the catalytic effect of an iron catalyst in a specific reaction. During the reaction, the reactants enter the reaction tower through the feed inlet and come into contact with the iron catalyst in the catalyst bed. The iron catalyst can lower the activation energy of the reaction, enabling the reactants to undergo a chemical reaction at relatively low temperatures and pressures to produce the target product. The reaction mixture is discharged from the reaction tower through the discharge outlet. At the same time, since the catalyst may gradually become deactivated during the reaction, a part of the deactivated catalyst needs to be transported to the regeneration device through a circulation system for regeneration to restore its catalytic activity, and then returned to the reaction tower to continue participating in the reaction, thereby realizing the recycling of the iron catalyst and improving the efficiency and economy of the reaction.

[0003] During the process of treating wastewater with existing wastewater treatment equipment, impurities are likely to precipitate inside the equipment, which affects the service life of the equipment and increases the subsequent cleaning difficulty. At the same time, the treatment effect on wastewater is relatively low, resulting in low operation efficiency. Therefore, a new design has been carried out for this situation. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A wastewater treatment device inside an iron cycle catalytic reaction tower, including a tank body mechanism, a first motor is fixedly connected to the top of the tank body mechanism, a second motor is fixedly connected to the bottom of the tank body mechanism, a stirring mechanism is rotatably connected to the bottom of the inner wall of the tank body mechanism, and an aeration mechanism is fixedly connected to the outside of the tank body mechanism;

[0005] The tank body mechanism includes a tank body outer shell. At the top of the inner wall of the tank body outer shell, a central rotating shaft is rotatably connected. On the outer side of the central rotating shaft, a rotating plate mechanism is fixedly connected. Wastewater enters the interior of the tank body outer shell from one side of the feeding mechanism, and an iron catalyst is injected into the interior of the tank body outer shell through an iron circulation pipe. The central rotating shaft is controlled by a first motor to rotate, driving the rotating plate mechanism to rotate, so as to achieve the effect of stirring the wastewater and the reagent, thereby promoting the mixing of substances, providing a uniform catalyst environment for the subsequent catalytic reaction, improving the consistency and stability of the reaction, accelerating the reaction speed. Stirring can reduce the diffusion resistance between reactants and accelerate the mass transfer process among substances such as organic matter, iron ions, and oxygen in the wastewater, enabling the reactants to reach the reaction interface faster, increasing the reaction rate, and thus more effectively degrading the organic matter in the wastewater, promoting iron circulation, preventing scaling and precipitation. After the wastewater and the iron catalyst are fully mixed, on both sides of the outside of the central rotating shaft, a wall scraping mechanism is fixedly connected. On the outer side of the tank body outer shell, a feeding mechanism is fixedly connected. On the outer side of the tank body outer shell, away from the feeding mechanism, an iron circulation pipe is fixedly connected. At the bottom of the outer side of the tank body outer shell, close to the iron circulation pipe, a discharge pipe is fixedly connected. The fluid flows out from one side of the discharge pipe, so as to facilitate subsequent treatment. The impurities during the precipitation process are adsorbed on the bottom of the tank body outer shell, and the impurities are cleaned by a stirring mechanism and discharged to one side of the sewage discharge pipe, avoiding excessive precipitation of impurities and affecting the subsequent operation effect. On one side of the bottom of the tank body outer shell, a sewage discharge pipe is fixedly connected.

[0006] Preferably, the rotating plate mechanism includes a connection outer shell. On the outer side of the connection outer shell, a connection housing is fixedly connected. A plug-in frame body is inserted into the inner side of the connection housing, which is convenient for disassembly and assembly, avoiding serious wear of components after long-term operation, and thus reducing the stirring efficiency. The plug-in frame body is inserted and connected to the inner side of the connection housing. On the outer side of the plug-in frame body, away from the connection housing, a paddle plate is fixedly connected. The paddle plate is driven to rotate by the central rotating shaft, so as to achieve the effect of promoting the mixing of substances and liquid, and performing coagulation precipitation on the impurities in the wastewater. It can adsorb suspended particles, colloid substances, and some organic matter in the wastewater, thereby realizing solid-liquid separation, reducing the turbidity and suspended solid content of the wastewater, improving the effluent quality, and inhibiting the growth of microorganisms. An appropriate amount of iron ions has an inhibitory effect on certain microorganisms, which can control the growth and reproduction of microorganisms in the wastewater, avoiding problems such as sludge bulking and water quality deterioration that may be caused by excessive growth of microorganisms in the wastewater. The iron ions generated by iron circulation can, to a certain extent, inhibit the growth of harmful microorganisms and maintain the stable operation of the wastewater treatment system.

[0007] Preferably, a first shaft block is fixedly connected to the inner side of the paddle plate block, and a cutting plate is fixedly connected to the outer side of the first shaft block. There may be solid impurities of a certain size in the wastewater, which can avoid entanglement of components. During the stirring process of the paddle plate block, the impurities in the wastewater are cut by the cutting plate to avoid impurity entanglement and prevent the stirring effect of the components from being affected. A plate surface groove is formed on the outer side of the cutting plate. By forming the plate surface groove, the sliding of the material can be prevented by forming the groove. The grooving can increase the friction between the surface of the component and the material to be cut, making the material more stable during the cutting process, not easy to slide or shift, thereby improving the accuracy and precision of the cutting.

[0008] Preferably, the wall scraping mechanism includes a circular block. A wall scraping support is fixedly connected to the outer side of the circular block. A connection end is fixedly connected to the side of the wall scraping support away from the circular block. A friction column is rotatably connected to the inner side of the connection end. Kinetic energy is provided for the wall scraping mechanism through the central rotating shaft. The wall scraping support drives the friction column to rub against the inner wall of the tank shell to clean the impurities on the inner wall and prevent dirt accumulation. The wastewater usually contains various impurities, suspended substances, microorganisms, and some substances that can undergo chemical reactions. During the operation of the equipment, these substances are easily attached to the inner wall of the equipment and gradually form dirt. Scraping the inner wall can timely remove these attached dirt, prevent it from accumulating thicker and thicker, thereby ensuring the normal operation and treatment effect of the equipment, avoiding corrosion of the equipment. Scraping the inner wall can destroy the dirt layer, keep the surface of the inner wall of the equipment clean, reduce the contact between the corrosion medium and the inner wall of the equipment, reduce the possibility of corrosion, and extend the service life of the equipment. An external support is fixedly connected to the outer side of the connection end. A second shaft block is fixedly connected between the opposite surfaces of the external support. A wiping block is fixedly connected to the outer side of the second shaft block. During the friction rotation of the friction column with the inner wall of the equipment, it is frictionally adapted to the wiping block. After the friction between the friction column and the wiping block, it can clean the impurities on the surface of the component, reduce the adsorption of impurities on the surface of the component, and prevent the subsequent friction effect from being affected.

[0009] Preferably, the feeding mechanism includes an electric control valve. The electric control valve intercepts and discharges the inflow of wastewater to control the size of the liquid flow rate, so as to ensure that the wastewater enters the equipment interior at a stable flow rate that meets the design requirements. Excessive flow rate may lead to insufficient reaction time and affect the treatment effect; too small flow rate may not fully utilize the treatment capacity of the equipment. One side of the outside of the electric control valve is fixedly connected to the outer side of the tank shell. An inlet pipe is fixedly connected to the side of the electric control valve away from the tank shell. A spiral block is fixedly connected to the inner side of the inlet pipe. When the wastewater enters the interior of the inlet pipe, it comes into contact with the spiral block. Through the spiral structure, the turbulent flow effect of the liquid is increased to reduce the adsorption of impurities in the wastewater on the pipe surface and avoid blocking the pipe.

[0010] Preferably, the stirring mechanism includes a rotating shaft, the bottom of the rotating shaft is fixedly connected to the output end of the second motor, an external column is fixedly connected to the outside of the rotating shaft, a rotating paddle is fixedly connected to the outside of the external column, and a cleaning mechanism is fixedly connected to the top of the rotating shaft. The second motor controls the rotation of the rotating shaft, and the rotating shaft drives the rotating paddle to rotate. The rotating paddle stirs the wastewater at the bottom of the device to increase the stirring effect at the bottom of the device and prevent sludge precipitation. Suspended solids, sludge and other substances in the wastewater are prone to precipitate to the bottom of the device under the action of gravity, so as to increase the mixing effect of the wastewater and the catalyst, prevent affecting the wastewater treatment effect, prevent scaling and blockage. Some dissolved substances in the wastewater may precipitate at the bottom of the device and form scale, blocking the inlet, outlet or pipeline of the device.

[0011] Preferably, the cleaning mechanism includes a connecting end, a receiving block is inserted and connected to the outside of the connecting end, a cleaning frame body is fixedly connected to the outside of the receiving block. During the rotation of the rotating shaft, the cleaning frame body is driven to scrape the inner wall of the device, so as to reduce the excessive adhesion of impurities and the subsequent cleaning difficulty. A square cut is opened at a place on the outside of the cleaning frame body close to the second motor, and a polishing column is rotatably connected to the inside of the square cut. During the rotation of the cleaning frame body, the polishing column is driven to operate. The polishing column rubs the caked impurities at the bottom of the inner wall of the device to further improve the cleaning effect and prevent excessive accumulation of impurities, thus affecting the normal operation of the device. A friction mechanism is fixedly connected to one side of the outside of the cleaning frame body close to the polishing column.

[0012] Preferably, the friction mechanism includes a friction bracket, a spring rod is fixedly connected between the opposite surfaces of the friction bracket to support the friction bracket, so as to reduce the vibration amplitude of the friction block and improve the stability of the component. A friction block is fixedly connected between the opposite surfaces of the two friction brackets. During the rotation and friction of the polishing column, it is frictionally matched with the friction block. During the friction of the friction block against the polishing column, the component is cleaned, so as to reduce the impurities on the surface of the component, prevent the impurities from adsorbing and solidifying on the surface of the component, and prevent affecting the subsequent cleaning effect.

[0013] Preferably, the aeration mechanism includes an annular pipeline, an aeration fan is fixedly connected to the outer side of the annular pipeline, a connecting pipe is fixedly connected to the inner side of the annular pipeline, and an aeration component is fixedly connected to the side of the connecting pipe away from the aeration fan. The aeration fan generates wind power, and the air flow flows inside the annular pipeline and then is discharged to the aeration component through the connecting pipe. First, it provides necessary oxygen for the wastewater treatment process to promote the oxidation reaction. Second, it enables the wastewater and iron ions to be fully mixed, improves the reaction efficiency, and at the same time plays a stirring role to prevent the packing or sludge from settling, promoting mixing and stirring. On the one hand, it is beneficial for the microorganisms to fully contact the pollutants and improve the removal efficiency of the pollutants. On the other hand, uniform mixing can prevent sludge settlement and avoid sludge accumulation at the bottom of the equipment, ensuring the stable operation of the wastewater treatment system.

[0014] Preferably, the aeration component includes an aeration housing. One side of the inner wall of the aeration housing is fixedly connected with an air outlet plate. One side of the outside of the air outlet plate is fixedly connected with a third shaft block. The outside of the third shaft block is rotatably connected with a rotating bracket. The inner side of the rotating bracket is fixedly connected with blades. The air flow impacts the blades, and the rotating bracket is driven to rotate by the blades. During the rotation of the rotating bracket, the silica gel block is driven to rub against the inner wall of the aeration housing to clean the impurities on the inner wall, avoiding the blockage of the equipment by impurities and keeping the air flow smooth. The outside of the rotating bracket away from the third shaft block is fixedly connected with a silica gel block. The silica gel block is made of silica gel material. The wear resistance and buffering effect of the component are increased by the silica gel material, reducing the wear on the inner wall of the component, thereby prolonging the service life of the component. The outside of the aeration housing away from the third shaft block is fixedly connected with a mesh screen to block impurities and reduce the entry of impurities into the air outlet plate to avoid blocking the holes and preventing the influence on the gas discharge effect.

[0015] The present invention provides a wastewater treatment device inside an iron cycle catalytic reaction tower. It has the following beneficial effects:

[0016] 1. The wastewater treatment equipment in the iron cycle catalytic reaction tower enters the interior of the tank shell from one side of the feeding mechanism through the design of the tank body mechanism. The iron catalyst is injected into the interior of the tank shell through the iron circulation pipe. The central rotating shaft is rotated by the first motor to drive the rotating plate mechanism to rotate, so as to achieve the effect of stirring wastewater and medicine, thereby promoting material mixing, providing a uniform catalyst environment for subsequent catalytic reactions, improving the consistency and stability of the reaction, accelerating the reaction speed. Stirring can reduce the diffusion resistance between reactants and accelerate the mass transfer process among substances such as organic matter, iron ions and oxygen in the wastewater, enabling the reactants to reach the reaction interface faster, increasing the reaction rate, thus more effectively degrading the organic matter in the wastewater, promoting the iron cycle, preventing scaling and precipitation. After the wastewater and the iron catalyst are fully mixed, they are precipitated for a certain period of time, and the fluid flows out from one side of the discharge pipe for subsequent treatment. The impurities during the precipitation process are adsorbed on the bottom of the tank shell and are cleaned by the stirring mechanism and discharged to the side of the sewage pipe to avoid excessive impurity precipitation and affecting the subsequent operation effect.

[0017] 2. The wastewater treatment equipment in the iron cycle catalytic reaction tower is designed with a rotating plate mechanism. The plug-in frame is inserted into the inner side of the connecting shell, which is convenient for disassembly and assembly, avoiding serious wear of components after long-term operation, thereby reducing the stirring efficiency. The paddle plate is rotated by the central rotating shaft to achieve the effect of promoting the mixing of substances and liquids, and coagulating and precipitating the impurities in the wastewater. It can adsorb suspended particles, colloid substances and some organic matter in the wastewater, thereby realizing solid-liquid separation, reducing the turbidity and suspended solid content of the wastewater, improving the effluent quality, and inhibiting the growth of microorganisms. An appropriate amount of iron ions has an inhibitory effect on certain microorganisms, which can control the growth and reproduction of microorganisms in the wastewater and avoid problems such as sludge bulking and water quality deterioration caused by excessive growth of microorganisms in the wastewater. The iron ions generated by the iron cycle can, to a certain extent, inhibit the growth of harmful microorganisms and maintain the stable operation of the wastewater treatment system. There may be solid impurities of a certain size in the wastewater. To avoid entanglement of components, during the stirring process of the paddle plate, the impurities in the wastewater are cut by the cutting plate to avoid impurity entanglement and prevent affecting the stirring effect of the components. By opening grooves on the plate surface, the grooves can prevent the material from sliding. The grooves can increase the friction between the surface of the component and the material to be cut, making the material more stable during the cutting process, not easy to slide or shift, thereby improving the accuracy and precision of cutting.

[0018] III. The wastewater treatment equipment in the iron cycle catalytic reaction tower is designed with a scraping mechanism. The central rotating shaft provides kinetic energy for the scraping mechanism. The scraping bracket drives the friction column to rub against the inner wall of the tank shell, thereby achieving the effect of cleaning the impurities on the inner wall, preventing dirt accumulation. Wastewater usually contains various impurities, suspended solids, microorganisms, and some substances that can undergo chemical reactions. During the operation of the equipment, these substances are likely to adhere to the inner wall of the equipment and gradually form dirt. Scraping the inner wall can timely remove these attached dirt, prevent it from accumulating thicker, thus ensuring the normal operation and treatment effect of the equipment, avoiding corrosion of the equipment. Scraping the inner wall can destroy the dirt layer, keep the surface of the inner wall of the equipment clean, reduce the contact between the corrosion medium and the inner wall of the equipment, reduce the possibility of corrosion, and extend the service life of the equipment. During the process of the friction column rotating by rubbing against the inner wall of the equipment, it is frictionally adapted to the wiping block. After the friction column and the wiping block are rubbed against each other, it plays a role in cleaning the impurities on the surface of the component, reducing the adsorption of impurities on the surface of the component, and preventing the influence on the subsequent friction effect.

[0019] IV. The wastewater treatment equipment in the iron cycle catalytic reaction tower is designed with a stirring mechanism. The second motor controls the rotating shaft to rotate, and the rotating shaft drives the rotating paddle to rotate. The rotating paddle stirs the wastewater at the bottom of the equipment, thereby increasing the stirring effect at the bottom of the equipment, avoiding sludge sedimentation. Suspended solids, sludge and other substances in the wastewater are easily precipitated to the bottom of the equipment under the action of gravity, thereby increasing the buffering effect between the wastewater and the catalyst, preventing the influence on the wastewater treatment effect, preventing scaling and blockage. Some soluble substances in the wastewater may precipitate at the bottom of the equipment and form scale, blocking the inlets, outlets or pipelines of the equipment.

[0020] V. The wastewater treatment equipment in the iron cycle catalytic reaction tower is designed with an aeration mechanism. The aeration fan generates wind power, and the air flow flows inside the annular pipeline and then is discharged to the aeration component through the connecting pipe. First, it provides the necessary oxygen for the wastewater treatment process and promotes the progress of the oxidation reaction; second, it makes the wastewater and iron ions fully mixed, improves the reaction efficiency, and at the same time plays a stirring role, preventing the packing or sludge from sedimenting, promoting mixing and stirring. On the one hand, it is beneficial for microorganisms to fully contact with pollutants and improve the removal efficiency of pollutants; on the other hand, uniform mixing can prevent sludge sedimentation and avoid the phenomenon of sludge accumulation at the bottom of the equipment, ensuring the stable operation of the wastewater treatment system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic external structure diagram of the wastewater treatment equipment in the iron cycle catalytic reaction tower of the present invention;

[0022] Figure 2 is a schematic cross-sectional structure diagram of the wastewater treatment equipment of the present invention;

[0023] Figure 3It is a schematic diagram of the cross-sectional structure of the tank body mechanism of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the rotating plate mechanism of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the wall scraping mechanism of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the stirring mechanism of the present invention;

[0027] Figure 7 It is a schematic diagram of the cleaning mechanism structure of the present invention;

[0028] Figure 8 It is an enlarged structural schematic diagram of the friction mechanism of the present invention;

[0029] Figure 9 It is a schematic diagram of the structure of the aeration mechanism of the present invention;

[0030] Figure 10 It is a schematic diagram of the cross-sectional structure of the aeration assembly of the present invention.

[0031] In the figure: 1, tank mechanism; 2, stirring mechanism; 3, aeration mechanism; 4, first motor; 5, second motor; 11, tank shell; 12, central shaft; 13, rotating plate mechanism; 14, scraping wall mechanism; 15, feeding mechanism; 16, iron circulation pipe; 17, discharge pipe; 18, sewage pipe; 131, connecting shell; 132, connecting shell; 133, plug-in frame; 134, paddle plate; 135, first shaft block; 136, cutting plate; 137, plate surface groove; 141, ring block; 142, scraping wall bracket; 143, connecting end; 144, friction column; 145, external bracket; 146, second shaft block; 147, wiping block; 1 51. Electric control valve; 152. Feed pipe; 153. Screw block; 21. Rotating shaft; 22. External column; 23. Rotating paddle; 24. Cleaning mechanism; 241. Connecting end; 242. Receiving block; 243. Cleaning frame; 244. Square incision; 245. Grinding column; 246. Friction mechanism; 2461. Friction bracket; 2462. Spring rod; 2463. Friction block; 31. Annular pipe; 32. Aeration fan; 33. Connecting pipe; 34. Aeration assembly; 341. Aeration shell; 342. Air outlet plate; 343. Third shaft block; 344. Rotating bracket; 345. Blade; 346. Silicone block; 347. Mesh. DETAILED DESCRIPTION

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] The first embodiment is as Figures 1 to 5 shown. The present invention provides a technical solution: a wastewater treatment device in an iron cycle catalytic reaction tower, including a tank body mechanism 1. A first motor 4 is fixedly connected to the top of the tank body mechanism 1, a second motor 5 is fixedly connected to the bottom of the tank body mechanism 1, a stirring mechanism 2 is rotatably connected to the bottom of the inner wall of the tank body mechanism 1, and an aeration mechanism 3 is fixedly connected to the outside of the tank body mechanism 1.

[0034] The tank body mechanism 1 includes a tank body outer shell 11. A central rotating shaft 12 is rotatably connected to the top of the inner wall of the tank body outer shell 11. A rotating plate mechanism 13 is fixedly connected to the outside of the central rotating shaft 12. Scraping wall mechanisms 14 are fixedly connected to both sides of the outside of the central rotating shaft 12. A feeding mechanism 15 is fixedly connected to the outside of the tank body outer shell 11. An iron circulation pipe 16 is fixedly connected to the side of the tank body outer shell 11 away from the feeding mechanism 15. A discharge pipe 17 is fixedly connected to the bottom of the tank body outer shell 11 near the iron circulation pipe 16. A sewage discharge pipe 18 is fixedly connected to one side of the bottom of the tank body outer shell 11. Wastewater enters the inside of the tank body outer shell 11 from one side of the feeding mechanism 15. The iron catalyst is injected into the inside of the tank body outer shell 11 through the iron circulation pipe 16. The central rotating shaft 12 is controlled to rotate by the first motor 4, driving the rotating plate mechanism 13 to rotate, so as to achieve the effect of stirring the wastewater and the reagent, thereby promoting the mixing of substances, providing a uniform catalyst environment for the subsequent catalytic reaction, improving the consistency and stability of the reaction, accelerating the reaction speed. Stirring can reduce the diffusion resistance between the reactants, accelerate the mass transfer process between substances such as organic matter, iron ions and oxygen in the wastewater, enable the reactants to reach the reaction interface faster, improve the reaction rate, and thus more effectively degrade the organic matter in the wastewater, promote the iron cycle, prevent scaling and precipitation. After the wastewater and the iron catalyst are fully mixed and precipitate for a certain period of time, the fluid flows out from one side of the discharge pipe 17, so as to facilitate subsequent treatment. The impurities during the precipitation process are adsorbed on the bottom of the tank body outer shell 11, and the impurities are cleaned by the stirring mechanism 2 and discharged to the sewage discharge pipe 18 side to avoid excessive impurity precipitation and affect the subsequent operation effect.

[0035] The rotating plate mechanism 13 includes a connecting housing 131. A connecting shell 132 is fixedly connected to the outside of the connecting housing 131. A plug-in frame body 133 is inserted and connected to the inside of the connecting shell 132. A paddle plate 134 is fixedly connected to the side of the plug-in frame body 133 away from the connecting shell 132. The plug-in frame body 133 is inserted into the inside of the connecting shell 132, which is convenient for disassembly and assembly, avoiding serious wear of components after long-term operation, thereby reducing the stirring efficiency. The paddle plate 134 is driven to rotate by the central rotating shaft 12, so as to promote the mixing of the material liquid, carry out coagulation precipitation on the impurities in the wastewater, adsorb the suspended particles, colloid substances and some organic matters in the wastewater, thereby realizing solid-liquid separation, reducing the turbidity and suspended solid content of the wastewater, improving the effluent quality, and inhibiting the growth of microorganisms. An appropriate amount of iron ions has an inhibitory effect on certain microorganisms, which can control the growth and reproduction of microorganisms in the wastewater, avoiding problems such as sludge bulking and water quality deterioration caused by excessive growth of microorganisms in the wastewater. The iron ions generated by the iron cycle can inhibit the growth of harmful microorganisms to a certain extent and maintain the stable operation of the wastewater treatment system.

[0036] A first shaft block 135 is fixedly connected to the inside of the paddle plate 134. A cutting plate 136 is fixedly connected to the outside of the first shaft block 135. A plate surface groove 137 is formed on the outside of the cutting plate 136. There may be solid impurities of a certain size in the wastewater. To avoid entanglement of components, during the stirring process of the paddle plate 134, the impurities in the wastewater are cut by the cutting plate 136, so as to avoid impurity entanglement and prevent the influence on the stirring effect of the components. By forming the plate surface groove 137, by forming the groove, the sliding of the material is prevented. Grooving can increase the friction between the surface of the component and the material to be cut, making the material more stable during the cutting process, not easy to slide or shift, thereby improving the accuracy and precision of cutting.

[0037] The scraping mechanism 14 includes a circular block 141. The outer side of the circular block 141 is fixedly connected with a scraping bracket 142. One side of the outer part of the scraping bracket 142 away from the circular block 141 is fixedly connected with a connection end 143. The inner side of the connection end 143 is rotatably connected with a friction column 144. The outer side of the connection end 143 is fixedly connected with an external connection bracket 145. Between the opposite faces of the external connection bracket 145, a second shaft block 146 is fixedly connected. The outer side of the second shaft block 146 is fixedly connected with a wiping block 147. The central rotating shaft 12 provides kinetic energy for the scraping mechanism 14. The scraping bracket 142 drives the friction column 144 to rub against the inner wall of the tank shell 11, so as to clean the impurities on the inner wall, prevent dirt accumulation. Waste water usually contains various impurities, suspended substances, microorganisms and some substances that will undergo chemical reactions. During the operation of the equipment, these substances are easy to adhere to the inner wall of the equipment and gradually form dirt. Scraping the inner wall can timely remove these adhered dirt, prevent it from accumulating thicker and thicker, so as to ensure the normal operation and treatment effect of the equipment, avoid corroding the equipment. Scraping the inner wall can destroy the dirt layer, keep the surface of the inner wall of the equipment clean, reduce the contact between the corrosion medium and the inner wall of the equipment, reduce the possibility of corrosion, and extend the service life of the equipment. During the process of the friction column 144 rubbing and rotating with the inner wall of the equipment, it is frictionally adapted to the wiping block 147. After the friction column 144 and the wiping block 147 are rubbed, it plays a role in cleaning the impurities on the surface of the parts, reducing the adsorption of impurities on the surface of the parts, and preventing the influence on the subsequent friction effect.

[0038] The feeding mechanism 15 includes an electric control valve 151. One side of the outer part of the electric control valve 151 is fixedly connected with the outer side of the tank shell 11. One side of the outer part of the electric control valve 151 away from the tank shell 11 is fixedly connected with a feeding pipeline 152. The inner side of the feeding pipeline 152 is fixedly connected with a spiral block 153. The electric control valve 151 intercepts and discharges the inflow of waste water, so as to control the size of the liquid flow rate, so as to ensure that the waste water enters the equipment with a stable and design-required flow rate. Excessive flow rate may lead to insufficient reaction time and affect the treatment effect; too small flow rate may not give full play to the treatment capacity of the equipment. Secondly, when the waste water enters the feeding pipeline 152, it contacts with the spiral block 153, and the spiral structure is used to increase the turbulence effect of the liquid, so as to reduce the adsorption of impurities in the waste water on the pipeline surface and avoid blocking the pipeline.

[0039] The second embodiment, on the basis of the first embodiment, please refer to Figures 6 to 8As shown in the figure, the stirring mechanism 2 includes a rotating shaft 21. The bottom of the rotating shaft 21 is fixedly connected to the output end of the second motor 5. An external column 22 is fixedly connected to the outside of the rotating shaft 21. A rotating paddle 23 is fixedly connected to the outside of the external column 22. A cleaning mechanism 24 is fixedly connected to the top of the rotating shaft 21. The second motor 5 controls the rotation of the rotating shaft 21. The rotating shaft 21 drives the rotating paddle 23 to rotate. The rotating paddle 23 stirs the wastewater at the bottom of the device, thereby increasing the stirring effect at the bottom of the device and avoiding sludge precipitation. Suspended solids, sludge and other substances in the wastewater are prone to precipitate to the bottom of the device under the action of gravity, thereby increasing the mixing effect of the wastewater and the catalyst, preventing the influence on the wastewater treatment effect, preventing scaling and blockage. Some dissolved substances in the wastewater may precipitate at the bottom of the device and form scale, blocking the inlet and outlet of the device or the pipeline.

[0040] The cleaning mechanism 24 includes a connecting end 241. A receiving block 242 is inserted and connected to the outside of the connecting end 241. A cleaning frame 243 is fixedly connected to the outside of the receiving block 242. A square notch 244 is opened at a position on the outside of the cleaning frame 243 close to the second motor 5. A polishing column 245 is rotatably connected to the inside of the square notch 244. A friction mechanism 246 is fixedly connected to a side of the cleaning frame 243 close to the polishing column 245. During the rotation of the rotating shaft 21, the cleaning frame 243 is driven to scrape the inner wall of the device, thereby reducing the excessive adhesion of impurities and increasing the subsequent cleaning difficulty. Secondly, during the rotation of the cleaning frame 243, the polishing column 245 is driven to operate. The polishing column 245 frictions the caked impurities at the bottom of the inner wall of the device, thereby further improving the cleaning effect and preventing excessive accumulation of impurities, which may affect the normal operation of the device.

[0041] The friction mechanism 246 includes a friction bracket 2461. A spring rod 2462 is fixedly connected between the opposite surfaces of the friction bracket 2461. A friction block 2463 is fixedly connected between the opposite surfaces of the two friction brackets 2461. During the rotation and friction of the polishing column 245, it is frictionally adapted to the friction block 2463. The friction block 2463 has a cleaning effect on the components during the friction of the polishing column 245, thereby reducing the impurities on the surface of the components, avoiding the adsorption and solidification of impurities on the surface of the components, and preventing the influence on the subsequent cleaning effect. The spring rod 2462 supports the friction bracket 2461, thereby reducing the vibration amplitude of the friction block 2463 and improving the stability of the components.

[0042] The third embodiment is based on the first and second embodiments. Please refer to Figures 9 to 10As shown in the figure, the aeration mechanism 3 includes an annular pipeline 31. An aeration fan 32 is fixedly connected to the outer side of the annular pipeline 31. A connecting pipe 33 is fixedly connected to the inner side of the annular pipeline 31. An aeration component 34 is fixedly connected to the side of the connecting pipe 33 away from the aeration fan 32. By generating wind with the aeration fan 32, the air flow flows inside the annular pipeline 31 and then is discharged to the aeration component 34 through the connecting pipe 33. On the one hand, it provides necessary oxygen for the wastewater treatment process to promote the oxidation reaction. On the other hand, it enables the wastewater and iron ions to be fully mixed, improves the reaction efficiency, and at the same time plays a stirring role to prevent the packing or sludge from settling, promoting mixing and stirring. On the one hand, it is beneficial for the microorganisms to come into full contact with the pollutants and improve the removal efficiency of the pollutants. On the other hand, uniform mixing can prevent sludge from settling and avoid the phenomenon of sludge accumulation at the bottom of the equipment, ensuring the stable operation of the wastewater treatment system.

[0043] The aeration component 34 includes an aeration housing 341. An air outlet plate 342 is fixedly connected to one side of the inner wall of the aeration housing 341. A third shaft block 343 is fixedly connected to the outer side of the air outlet plate 342. A rotating bracket 344 is rotatably connected to the outer side of the third shaft block 343. A blade 345 is fixedly connected to the inner side of the rotating bracket 344. A silica gel block 346 is fixedly connected to the side of the rotating bracket 344 away from the third shaft block 343. A mesh screen 347 is fixedly connected to the side of the aeration housing 341 away from the third shaft block 343. The mesh screen 347 blocks impurities to reduce the entry of impurities into the air outlet plate 342, avoiding clogging of the holes and preventing the impact on the gas discharge effect. The air flow impacts the blade 345, and the blade 345 drives the rotating bracket 344 to rotate. During the rotation of the rotating bracket 344, the silica gel block 346 drives to rub the inner wall of the aeration housing 341 to clean the impurities on the inner wall, avoiding clogging of the equipment by impurities, thereby keeping the air flow smooth. The silica gel block 346 is made of silica gel material. The silica gel material increases the wear resistance and buffering effect of the component, reduces the wear on the inner wall of the component, and thus extends the service life of the component.

[0044] During use, connect the iron circulation device through the iron circulation pipe 16. Wastewater enters the interior of the tank shell 11 from the feeding mechanism 15. The feeding mechanism 15 increases the turbulence effect of the wastewater to reduce the adsorption of impurities on the inner wall of the pipeline, and controls the fluid flow through the feeding mechanism 15 to ensure that the wastewater enters the equipment interior at a stable flow rate that meets the design requirements. Excessive flow rate may lead to insufficient reaction time and affect the treatment effect; too small flow rate may prevent the full utilization of the equipment's treatment capacity. After the wastewater enters the interior of the tank shell 11, the wastewater comes into contact with the iron catalyst. The first motor 4 controls the rotation of the central shaft 12, driving the rotating plate mechanism 13 to stir the wastewater to promote the mixing of the substance and the liquid, coagulate and precipitate the impurities in the wastewater, adsorb suspended particles, colloidal substances and some organic substances in the wastewater, thereby realizing solid-liquid separation, reducing the turbidity and suspended solid content of the wastewater, improving the effluent quality, and inhibiting the growth of microorganisms. An appropriate amount of iron ions has an inhibitory effect on certain microorganisms, which can control the growth and reproduction of microorganisms in the wastewater and avoid problems such as sludge bulking and water quality deterioration caused by excessive growth of microorganisms in the wastewater. The iron ions generated by the iron circulation can, to a certain extent, inhibit the growth of harmful microorganisms and maintain the stable operation of the wastewater treatment system. During the rotation of the rotating plate mechanism 13, the stirring mechanism 2 also rotates simultaneously to increase the stirring effect at the bottom of the equipment and prevent sludge precipitation. Suspended solids, sludge and other substances in the wastewater are prone to precipitate to the bottom of the equipment under the action of gravity, thereby increasing the buffering effect between the wastewater and the catalyst and preventing the influence on the wastewater treatment effect and preventing scaling and blockage. Some dissolved substances in the wastewater may precipitate at the bottom of the equipment and form scale, blocking the inlet and outlet of the equipment or the pipeline. The rotating plate mechanism 13 and the stirring mechanism 2 make the wastewater and the catalyst evenly mixed, and then the scraping mechanism 14 cleans the impurities on the inner wall of the equipment to reduce impurity adsorption and the subsequent cleaning difficulty. After the equipment stops rotating, the impurities in the wastewater precipitate, the treated wastewater is discharged from the discharge pipe 17, and the precipitated impurities are discharged outward from the sewage pipe 18 to avoid excessive accumulation of impurities and affect the normal operation of the equipment. Secondly, the cleaning mechanism 24 scrapes the bottom of the inner wall of the equipment to reduce the mass of impurities and improve the impurity discharge effect.

[0045] Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices and operation methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art without special description and limitation.

Claims

1. A wastewater treatment equipment in an iron circulation catalytic reaction tower, characterized in that: It comprises a tank body mechanism (1), the top of the tank body mechanism (1) is fixedly connected to a first motor (4), the bottom of the tank body mechanism (1) is fixedly connected to a second motor (5), the bottom of the inner wall of the tank body mechanism (1) is rotatably connected to a stirring mechanism (2), and the outer side of the tank body mechanism (1) is fixedly connected to an aeration mechanism (3); The tank mechanism (1) comprises a tank shell (11), the top of the inner wall of the tank shell (11) is rotatably connected to a central rotating shaft (12), the outer side of the central rotating shaft (12) is fixedly connected to a rotating plate mechanism (13), the two sides of the outside of the central rotating shaft (12) are fixedly connected to wall scraping mechanisms (14), the outer side of the tank shell (11) is fixedly connected to a feeding mechanism (15), the side of the outside of the tank shell (11) away from the feeding mechanism (15) is fixedly connected to an iron circulation pipe (16), the bottom of the outside of the tank shell (11) close to the iron circulation pipe (16) is fixedly connected to a discharge pipe (17), and the bottom of the tank shell (11) is fixedly connected to a sewage discharge pipe (18).

2. The wastewater treatment equipment in an iron circulation catalytic reaction tower according to claim 1, characterized in that: The rotating plate mechanism (13) comprises a connecting shell (131), the outer side of the connecting shell (131) is fixedly connected to a connecting shell (132), the inner side of the connecting shell (132) is plug-connected to a plug-in frame (133), and the outer side of the plug-in frame (133) away from the connecting shell (132) is fixedly connected to a paddle block (134).

3. The wastewater treatment equipment in an iron circulation catalytic reaction tower according to claim 2, characterized in that: The inner side of the paddle block (134) is fixedly connected to a first shaft block (135), the outer side of the first shaft block (135) is fixedly connected to a cutting plate (136), and the outer side of the cutting plate (136) is provided with a plate surface groove (137).

4. The wastewater treatment equipment in an iron circulation catalytic reaction tower according to claim 1, characterized in that: The wall scraping mechanism (14) comprises a ring-shaped block (141), the outer side of the ring-shaped block (141) is fixedly connected to a wall scraping bracket (142), the outer side of the wall scraping bracket (142) away from the ring-shaped block (141) is fixedly connected to a connecting end (143), the inner side of the connecting end (143) is rotatably connected to a friction column (144), the outer side of the connecting end (143) is fixedly connected to an external bracket (145), the opposite surfaces of the external bracket (145) are fixedly connected to a second shaft block (146), and the outer side of the second shaft block (146) is fixedly connected to a wiping block (147).

5. The wastewater treatment equipment in an iron circulation catalytic reaction tower according to claim 1, characterized in that: The feeding mechanism (15) comprises an electric control valve (151), one side of the outside of the electric control valve (151) is fixedly connected to the outside of the tank shell (11), the side of the outside of the electric control valve (151) away from the tank shell (11) is fixedly connected to a feeding pipe (152), and the inner side of the feeding pipe (152) is fixedly connected to a spiral block (153).

6. The wastewater treatment equipment in an iron circulation catalytic reaction tower according to claim 1, characterized in that: The stirring mechanism (2) comprises a rotating shaft (21), the bottom of the rotating shaft (21) is fixedly connected to the output end of the second motor (5), the outer side of the rotating shaft (21) is fixedly connected to an external column (22), the outer side of the external column (22) is fixedly connected to a rotating paddle (23), and the top of the rotating shaft (21) is fixedly connected to a cleaning mechanism (24).

7. The wastewater treatment equipment in an iron circulation catalytic reaction tower according to claim 6, characterized in that: The cleaning mechanism (24) comprises a connecting end (241), the outer side of the connecting end (241) is plug-connected with a receiving block (242), the outer side of the receiving block (242) is fixedly connected with a cleaning frame (243), a square cutout (244) is provided on the outside of the cleaning frame (243) near the second motor (5), a grinding column (245) is rotatably connected on the inner side of the square cutout (244), and a friction mechanism (246) is fixedly connected on one side of the outside of the cleaning frame (243) near the grinding column (245).

8. The wastewater treatment equipment in the iron circulation catalytic reaction tower according to claim 7, characterized in that: The friction mechanism (246) comprises a friction bracket (2461), a spring rod (2462) is fixedly connected between opposite surfaces of the friction bracket (2461), and a friction block (2463) is fixedly connected between opposite surfaces of two friction brackets (2461).

9. The wastewater treatment equipment in an iron circulation catalytic reaction tower according to claim 1, characterized in that: The aeration mechanism (3) comprises an annular pipe (31), the outer side of the annular pipe (31) is fixedly connected to an aeration fan (32), the inner side of the annular pipe (31) is fixedly connected to a connecting pipe (33), and the outer side of the connecting pipe (33) away from the aeration fan (32) is fixedly connected to an aeration assembly (34).

10. The wastewater treatment equipment in an iron circulation catalytic reaction tower according to claim 9, characterized in that: The aeration assembly (34) comprises an aeration shell (341), an air outlet plate (342) is fixedly connected to one side of the inner wall of the aeration shell (341), a third shaft block (343) is fixedly connected to one side of the outer side of the air outlet plate (342), a rotating bracket (344) is rotatably connected to the outer side of the third shaft block (343), a blade (345) is fixedly connected to the inner side of the rotating bracket (344), a silica gel block (346) is fixedly connected to the outer side of the rotating bracket (344) away from the third shaft block (343), and a mesh (347) is fixedly connected to the outer side of the aeration shell (341) away from the third shaft block (343).

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