Magnetization Fenton reactor

Abstract

The utility model discloses a magnetization Fenton reactor, which relates to the technical field of Fenton reactors, and comprises a reaction cylinder, a stirring component is arranged at the upper end of the reaction cylinder, a mixing component is arranged outside the stirring component, a slag discharge port is arranged at the center of the lower surface of the reaction cylinder, and the slag discharge port is communicated with the reaction cylinder. Supporting legs are welded to the outer wall, close to the bottom end, of the reaction cylinder, a discharging port is formed in the surface of the side, close to the bottom end, of the reaction cylinder, the mixing assembly comprises a mixing box, a water inlet pipe is arranged on the upper surface of one side of the mixing box, and a protective cover is arranged outside one end of the water inlet pipe; according to the scheme, the problems that when existing waste water and reaction liquid are subjected to mixed reaction, suction type mixing is carried out through a water pump, the mixing path is short, the mixing range is small, and mixing in a pipeline is prone to being uneven, so that the mixing efficiency is low, and resource waste is serious are solved.

Description

Technical Field

[0001] This utility model relates to the field of Fenton reactor technology, specifically a magnetized Fenton reactor. Background Technology

[0002] A Fenton reactor is a wastewater treatment device designed using the Fenton reaction principle, mainly used to degrade recalcitrant organic pollutants;

[0003] For example, the Chinese authorized patent CN221296425U (A Pre-magnetized Fenton Reactor) includes a cylinder, a protective shell, an ejector, an oxidant dosing pipe a, an oxidant dosing pipe b, and a stirrer. An inlet pipe is installed inside the cylinder, with its outer end penetrating the cylinder wall. The protective shell is located outside the inlet pipe, and multiple high-strength NdFeB permanent magnets are arranged between the protective shell and the inlet pipe, all arranged around the axis of the inlet pipe. The ejector is located inside the cylinder. Oxidant dosing pipe a is located inside the cylinder, and the inner end of oxidant dosing pipe b is connected to the ejector. This invention adds a magnetization process to improve the efficiency of the subsequent Fenton reaction. Furthermore, a multi-point dosing jet mixing system is installed inside to ensure uniform mixing of the reagent and wastewater, accelerate the mixing time of the reagent, and increase the reaction rate.

[0004] However, existing methods of mixing wastewater and reaction liquids using a water pump for suction mixing result in short mixing paths, small mixing ranges, and uneven mixing within pipelines, leading to low mixing efficiency and significant resource waste. Therefore, this method does not meet current requirements. To address this, we propose a magnetized Fenton reactor. Utility Model Content

[0005] The purpose of this invention is to provide a magnetized Fenton reactor to solve the problems mentioned in the background art, where existing wastewater and reaction liquid are mixed by suction mixing with a water pump, resulting in a short mixing path, small range, and uneven mixing in pipelines, leading to low mixing efficiency and serious resource waste.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a magnetized Fenton reactor, comprising: a reaction cylinder, a stirring assembly provided at the upper end of the reaction cylinder, a mixing assembly provided outside the stirring assembly, a slag discharge port provided at the center of the lower surface of the reaction cylinder, a support leg welded to the outer wall of the reaction cylinder near the bottom end, and a discharge port provided on the side surface of the reaction cylinder near the bottom end.

[0007] Preferably, the mixing assembly includes a mixing chamber, an inlet pipe is provided on the upper surface of one side of the mixing chamber, a protective cover is provided on the outside of one end of the inlet pipe, a high-strength neodymium iron boron permanent magnet is provided inside the protective cover and between the inlet pipe, and multiple high-strength neodymium iron boron permanent magnets are provided and distributed in an equidistant array, and a first dosing pipe is provided on the upper surface of the other side of the mixing chamber, and a second dosing pipe is provided on one side of the first dosing pipe.

[0008] Preferably, the mixing assembly further includes an ejector located below the mixing tank. A support frame is provided between the ejector and the mixing tank, and a water pump is provided on one side of the support frame. The inlet and outlet of the water pump are connected to the ejector and the mixing tank respectively through connecting pipes.

[0009] Preferably, both ends of the support frame are provided with fixing plates, and both ends of the support frame are fixed to the jet injector and the mixing box respectively by external fasteners of the fixing plates.

[0010] Preferably, the jet ejector includes an annular tube and nozzles, with the nozzles located on the lower surface of the annular tube, and multiple nozzles are provided.

[0011] Preferably, the stirring assembly includes a cover plate, a first through-hole is provided on one side of the upper surface of the cover plate, a second through-hole is provided on one side of the first through-hole, and one end of the first dosing pipe and the second dosing pipe pass through the first through-hole and the second through-hole respectively. A third through-hole is provided on the other side of the upper surface of the cover plate, and one end of the water inlet pipe passes through the third through-hole. The bottom outer wall of the cover plate and the top outer wall of the reaction cylinder are both provided with fixing flanges, and the two fixing flanges are fixed by external bolts.

[0012] Preferably, the stirring assembly further includes a stirring shaft, a stirring motor is provided at the top of the stirring shaft, and stirring blades are provided on the outside of the stirring shaft.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model sets a high-strength neodymium iron boron permanent magnet between the protective cover and the water inlet pipe, and also sets a mixing component. The high-strength neodymium iron boron permanent magnet forms a super magnetization zone. When the wastewater passes through the magnetic field zone, the paramagnetic water molecules rearrange according to the direction of the magnetic field lines, thereby changing the combination state of dissolved and colloidal organic pollutants and water molecules in the wastewater, increasing the collision probability of pollutants and hydroxyl radicals, and significantly increasing the speed and degree of chemical reaction. Both wastewater and oxidant enter the mixing tank for preliminary mixing. Due to the large mixing range of the mixing tank, the uniformity and efficiency of mixing oxidant and wastewater are improved, avoiding resource waste. After being sprayed out by the jet nozzle, it is mixed again by the stirring blade to achieve full mixing and improve mixing efficiency. This solves the problem that when existing wastewater and reaction liquid are mixed, the water pump is used for suction mixing, the mixing path is short and the range is small. Mixing in the pipeline is easy to cause uneven mixing, resulting in low mixing efficiency and serious resource waste.

[0015] (2) By setting a support frame between the jet injector and the mixing box, and fixing the two ends of the support frame to the jet injector and the mixing box respectively by fixing plates and external fasteners, it is easy to disassemble and separate the jet injector and the mixing box, thus improving flexibility. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the stirring component and the mixing component of this utility model;

[0018] Figure 3 This is a schematic diagram showing the disassembled structure of the stirring component and the mixing component of this utility model;

[0019] Figure 4 This is a schematic diagram of the support frame structure of this utility model;

[0020] In the diagram: 1. Reaction cylinder; 2. Stirring assembly; 3. Mixing assembly; 4. Fixed flange; 5. Slag discharge port; 6. Support leg; 7. Discharge port; 8. Cover plate; 9. Stirring motor; 10. First through port; 11. Second through port; 12. Third through port; 13. Stirring shaft; 14. Stirring blade; 15. Mixing tank; 16. Ejector; 17. First dosing pipe; 18. Second dosing pipe; 19. Water inlet pipe; 20. Protective cover; 21. High-strength neodymium iron boron permanent magnet; 22. Water pump; 23. Connecting pipe; 24. Support frame; 25. Annular pipe; 26. Nozzle; 27. Fixing plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4 This utility model provides an embodiment of a magnetized Fenton reactor, comprising: a reaction cylinder 1, a stirring assembly 2 at the upper end of the reaction cylinder 1, a mixing assembly 3 outside the stirring assembly 2, a slag discharge port 5 at the center of the lower surface of the reaction cylinder 1, a support leg 6 welded to the outer wall of the reaction cylinder 1 near the bottom, and a discharge port 7 on one side surface of the reaction cylinder 1 near the bottom. The mixing assembly 3 includes a mixing chamber 15, an inlet pipe 19 on the upper surface of one side of the mixing chamber 15, a protective cover 20 on the outer side of one end of the inlet pipe 19, a high-strength neodymium iron boron permanent magnet 21 disposed between the protective cover 20 and the inlet pipe 19, and multiple high-strength neodymium iron boron permanent magnets 21 are disposed and distributed in an equidistant array. A first dosing pipe 17 is disposed on the upper surface of the other side of the mixing chamber 15. A second dosing pipe 18 is provided on the side. The mixing assembly 3 also includes an ejector 16, which is located below the mixing tank 15. A support frame 24 is provided between the ejector 16 and the mixing tank 15. A water pump 22 is provided on one side of the support frame 24. The inlet and outlet of the water pump 22 are connected to the ejector 16 and the mixing tank 15 respectively through connecting pipes 23. Fixing plates 27 are provided at both ends of the support frame 24. The two ends of the support frame 24 are fixed to the ejector 16 and the mixing tank 15 respectively through fasteners attached to the fixing plates 27. The ejector 16 includes an annular pipe 25 and a nozzle 26. The nozzle 26 is located on the lower surface of the annular pipe 25, and multiple nozzles 26 are provided. The connected stirring assembly 2 and mixing assembly 3 are placed inside the reaction cylinder 1. The inner wall of the reaction cylinder 1 has a limiting baffle (not shown in the figure) for supporting the ejector 16.

[0023] Wastewater is introduced from the inlet pipe 19. When it passes through the protective cover 20, a super magnetization zone is formed by the high-strength neodymium iron boron permanent magnet 21. When the wastewater passes through the magnetic field zone, the paramagnetic water molecules rearrange themselves according to the direction of the magnetic field lines, thereby changing the binding state of dissolved and colloidal organic pollutants with water molecules in the wastewater, increasing the probability of collision between pollutants and hydroxyl radicals, and significantly increasing the speed and degree of chemical reaction.

[0024] Wastewater enters the mixing tank 15 and oxidant is added through the first dosing pipe 17 and the second dosing pipe 18. The oxidant also falls into the mixing tank 15 and mixes with the wastewater. Because the mixing tank 15 has a large mixing range, the uniformity and efficiency of the mixing of oxidant and wastewater are improved. The water pump 22 is started to introduce the wastewater into the ejector 16 through the connecting pipe 23 and spray it out through the nozzle 26 into the reaction cylinder 1.

[0025] like Figure 3 As shown, the stirring assembly 2 includes a cover plate 8. A first through-hole 10 is provided on one side of the upper surface of the cover plate 8, and a second through-hole 11 is provided on one side of the first through-hole 10. One end of the first dosing pipe 17 and the second dosing pipe 18 pass through the first through-hole 10 and the second through-hole 11, respectively. A third through-hole 12 is provided on the other side of the upper surface of the cover plate 8, and one end of the water inlet pipe 19 passes through the third through-hole 12. Fixed flanges 4 are provided on the bottom outer wall of the cover plate 8 and the top outer wall of the reaction cylinder 1. The two fixed flanges 4 are fixed by external bolts. The stirring assembly 2 also includes a stirring shaft 13. A stirring motor 9 is provided at the top of the stirring shaft 13. Stirring blades 14 are provided on the outside of the stirring shaft 13. When the stirring motor 9 is started, the stirring shaft 13 is driven to rotate through the output end of the stirring motor 9. The wastewater and oxidant are further mixed by the stirring blades 14 to achieve full mixing. The wastewater is discharged from the discharge port 7, and the remaining residue is discharged from the slag discharge port 5.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A magnetized Fenton reactor, comprising a reaction chamber (1), characterized in that: The upper end of the reaction cylinder (1) is provided with a stirring assembly (2), the outside of the stirring assembly (2) is provided with a mixing assembly (3), the center of the lower surface of the reaction cylinder (1) is provided with a slag discharge port (5), the outer wall of the reaction cylinder (1) near the bottom is welded with a support leg (6), and the side surface of the reaction cylinder (1) near the bottom is provided with a discharge port (7).

2. The magnetized Fenton reactor according to claim 1, characterized in that: The mixing assembly (3) includes a mixing tank (15). A water inlet pipe (19) is provided on the upper surface of one side of the mixing tank (15). A protective cover (20) is provided on the outside of one end of the water inlet pipe (19). A high-strength neodymium iron boron permanent magnet (21) is provided between the protective cover (20) and the water inlet pipe (19). Multiple high-strength neodymium iron boron permanent magnets (21) are provided and are distributed in an equidistant array. A first dosing pipe (17) is provided on the upper surface of the other side of the mixing tank (15). A second dosing pipe (18) is provided on one side of the first dosing pipe (17).

3. The magnetized Fenton reactor according to claim 2, characterized in that: The mixing component (3) also includes an ejector (16), which is located below the mixing tank (15). A support frame (24) is provided between the ejector (16) and the mixing tank (15). A water pump (22) is provided on one side of the support frame (24). The inlet and outlet of the water pump (22) are connected to the ejector (16) and the mixing tank (15) respectively through connecting pipes (23).

4. The magnetized fenton reactor according to claim 3, characterized in that: Both ends of the support frame (24) are provided with fixing plates (27), and both ends of the support frame (24) are fixed to the jet injector (16) and the mixing box (15) respectively by external fasteners of the fixing plates (27).

5. The magnetized fenton reactor according to claim 3, characterized in that: The jet injector (16) includes an annular tube (25) and a nozzle (26), with the nozzle (26) located on the lower surface of the annular tube (25) and multiple nozzles (26) provided.

6. The magnetized fenton reactor according to claim 1, characterized in that: The stirring assembly (2) includes a cover plate (8). A first through-hole (10) is provided on one side of the upper surface of the cover plate (8). A second through-hole (11) is provided on one side of the first through-hole (10). One end of the first dosing pipe (17) and the second dosing pipe (18) passes through the first through-hole (10) and the second through-hole (11) respectively. A third through-hole (12) is provided on the other side of the upper surface of the cover plate (8). One end of the water inlet pipe (19) passes through the third through-hole (12). Fixed flanges (4) are provided on the bottom outer wall of the cover plate (8) and the top outer wall of the reaction cylinder (1). The two fixed flanges (4) are fixed by external bolts.

7. The magnetized fenton reactor according to claim 6, characterized in that: The stirring assembly (2) also includes a stirring shaft (13), a stirring motor (9) is provided at the top of the stirring shaft (13), and stirring blades (14) are provided on the outside of the stirring shaft (13).

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