A fluidized bed Fenton reactor

Abstract

This utility model provides a fluidized bed Fenton reactor, relating to the field of reactor technology, to solve the problem that wastewater has its own flow path and velocity within the reactor, making it difficult for directly added reagents to disperse rapidly and evenly throughout the wastewater, resulting in a significant reduction in overall reagent utilization. The reactor includes: an outer cylinder; a dispersing plate rotatably connected to a shaft hole at the bottom of the outer cylinder; the dispersing plate is configured with a double-layer structure, with a branch pipe inside and an external pipe opening at the bottom. Through the double-layer structure and rotatable dispersing plate design, the rotational addition and dispersion of the reagent are achieved. The nozzle at the top of the dispersing plate sprays the reagent evenly during rotation, and combined with the stirring action of the mixing plate, the reagent and wastewater are rapidly mixed in the inner cylinder. After entering the outer cylinder through the branch pipe and addition pipe, the reflux dilution design of the external branch pipe further enhances the secondary mixing effect.

Description

Technical Field

[0001] This utility model belongs to the field of reactor technology, and more specifically, relates to a fluidized bed Fenton reactor. Background Technology

[0002] Fluidized bed Fenton (FBR-Fenton) technology is a new type of Fenton oxidation technology that improves upon the shortcomings of traditional Fenton oxidation, such as high sludge production and large reagent dosage. The fluidized bed reactor is the core equipment of this technology, and its design features significantly improve the efficiency of the Fenton reaction. Therefore, a reactor is needed to facilitate the reaction treatment in fluidized bed Fenton.

[0003] For example, application number CN202020093258.1 discloses a high-efficiency swirl-type Fenton fluidized bed reactor, including a fluidized bed cylinder and a packing layer fixed inside the cylinder. A swirl generating device is fixed on the inner wall between the bottom of the fluidized bed cylinder and the packing layer. An air inlet is opened on the inner wall of the bottom periphery of the fluidized bed cylinder, and a wastewater inlet is opened at the bottom center. The swirl generating device includes a swirl plate, a bearing is sleeved between the swirl plate and the inner wall of the fluidized bed cylinder, a perforation is opened on the swirl plate, and swirl blades are installed in the perforation. The center of the swirl blades is fixed to a connecting rod extending from the swirl plate to the center of the perforation.

[0004] Based on existing technologies, it has been found that traditional methods of adding chemicals usually involve directly adding the required chemicals into the reactor. For example, when treating dyeing and printing wastewater, the wastewater has its own flow path and rate within the reactor. Directly added chemicals cannot be quickly and evenly dispersed throughout the wastewater, resulting in a significant reduction in the overall chemical utilization rate. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model relates to a fluidized bed Fenton reactor, which solves the problem that traditional reagent addition methods typically involve directly adding the required reagents into the reactor. For example, when treating dyeing and printing wastewater, the wastewater has its own flow path and velocity within the reactor, and directly added reagents cannot be quickly and evenly dispersed throughout the wastewater, resulting in a significant reduction in the overall reagent utilization rate.

[0006] This utility model provides a fluidized bed Fenton reactor, achieved through the following specific technical means: A fluidized bed Fenton reactor includes: an outer cylinder; an inner cylinder fixedly connected to the interior of the outer cylinder through a circular through-hole; equidistant branch holes are formed on the outer wall of the inner cylinder; a top cover is provided on the top of the inner cylinder; a fixed frame is fixedly connected to the top of the top cover; a control motor is fixedly connected to the top of the fixed frame; a mixing rod is connected to the motor shaft of the control motor; a dispersion plate is rotatably connected to the shaft hole at the bottom of the outer cylinder; the dispersion plate is configured with a double-layer structure, a diversion pipe is provided inside the dispersion plate, and an external pipe port is provided at the bottom of the dispersion plate; internal slots are formed on the double-layer dispersion plate at equal intervals; a dispersion plate is held inside the internal slots; and a connecting block is fixedly connected to the bottom end of the mixing rod.

[0007] Preferably, the outer cylinder has a shaft hole at its bottom, an external discharge hole at its bottom, and a circular through hole at its top; the outer cylinder has an external branch hole on its outer wall; the inner cylinder has a shaft hole at its bottom; the branch hole is connected to an adding pipe; and the adding pipe is configured as a T-shaped pipe.

[0008] Preferably, a shaft hole is provided in the middle of the top cover; a shaft hole is provided on the fixed frame; the hybrid rod is rotatably connected in the shaft hole of the top cover; and the hybrid rod is rotatably connected in the shaft hole of the fixed frame.

[0009] Preferably, the outer pipe port at the bottom of the dispersing plate is rotatably connected to a set of interfaces of the adding pipe; the top layer of the dispersing plate is rotatably connected to the inner cylinder; and the top of the dispersing plate is provided with a hexagonal prism-shaped protrusion.

[0010] Preferably, the inner slot is connected to the diversion pipe inside the dispersing plate; the top of the dispersing plate is provided with a nozzle, and the dispersing plate is connected to the diversion pipe inside the dispersing plate.

[0011] Preferably, the top of the docking block has a cylindrical groove; the bottom of the docking block has a synchronization groove; the synchronization groove is a hexagonal prism groove; and a hexagonal prism protrusion from the top of the dispersing plate is inserted into the synchronization groove.

[0012] Preferably, a mounting bracket is fixedly connected to the hybrid rod; hybrid plates are fixedly connected at equal intervals to the outer wall of the mounting bracket.

[0013] The fluidized bed Fenton reactor proposed in this invention has the following beneficial effects: 1. Through the design of a double-layered dispersing plate and a rotatable dispersing plate, the rotational addition and dispersion of the agent are realized. The nozzle at the top of the dispersing plate sprays the agent evenly during rotation. Combined with the stirring effect of the mixing plate, the agent and sewage are quickly mixed in the inner cylinder. After entering the outer cylinder through the distribution hole and the addition pipe, the reflux dilution design of the outer distribution hole further enhances the secondary mixing effect. This multi-stage mixing mechanism significantly improves the uniformity of agent diffusion. 2. The circulating flow design between the outer and inner cylinders allows unreacted reagents to be reused, effectively reducing the cost of subsequent sludge treatment. The control motor-driven mixing rod simultaneously drives the dispersing plate and the mixing plate to rotate, forming a three-dimensional mixing effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the three-dimensional assembly structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the three-dimensional assembly structure of this utility model from a bottom view.

[0016] Figure 3 This is a partial cross-sectional structural diagram of the present invention.

[0017] Figure 4 This utility model is composed of Figure 3 A schematic diagram of the enlarged structure of part A.

[0018] Figure 5 This is an exploded structural diagram of the present invention.

[0019] Figure 6 This is an exploded bottom view structural diagram of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. External cylinder; 101. External hole; 102. Inner cylinder; 103. Branch hole; 104. Adding tube; 2. Top cover; 201. Fixed frame; 202. Control motor; 203. Hybrid rod; 3. Dispersion plate; 301. Inner slot; 302. Dispersion plate; 4. Connecting block; 401. Synchronization slot; 402. Mounting bracket; 403. Hybrid plate. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0022] Example 1: As shown in the attached document Figure 1 To be continued Figure 6As shown: This utility model provides a fluidized bed Fenton reactor, including: an outer cylinder 1; an inner cylinder 102 is fixedly connected to the inside of the outer cylinder 1 through a circular through hole; the inner cylinder 102 is used for loading and treating wastewater and for primary mixing of reagents, facilitating wastewater treatment; equal-spaced branch holes 103 are provided on the outer wall of the inner cylinder 102; the branch holes 103 are used to connect the space inside the outer cylinder 1 and the inner cylinder 102, facilitating the transport and treatment of wastewater after primary reagent mixing; a top cover 2 is provided on the top of the inner cylinder 102; A mounting frame 201 is fixed to the top of the cover 2; the mounting frame 201 is used to fix the control motor 202 to ensure its stability during use; the control motor 202 is fixed to the top of the mounting frame 201; the control motor 202 is used to drive the mixing rod 203 to rotate, so as to cooperate with the docking block 4 to drive the dispersing plate 3 and the mounting frame 402 to rotate and adjust, so as to facilitate the mixing treatment of sewage and chemicals; the motor shaft of the control motor 202 is connected to the mixing rod 203; the mixing rod 203 is used to drive the control motor 202 to rotate. The outer cylinder 1 rotates to coordinate with the docking block 4 to drive the dispersing plate 3 and the mounting frame 402 to rotate and adjust, facilitating the mixing of wastewater and chemicals. The dispersing plate 3 is rotatably connected to the shaft hole at the bottom of the outer cylinder 1. The dispersing plate 3 has a double-layer structure, with a branch pipe inside and an external pipe port at the bottom. The dispersing plate 3 is used to drive the dispersing plate 302 to perform chemical addition during rotation, facilitating the dispersion of chemicals through rotation. The double-layer structure of the dispersing plate 3 is divided into... The inner slots 301 are evenly spaced; the inner slots 301 are used to assist in the installation of the dispersion plate 302, so that the dispersion plate 302 can be connected after docking; the dispersion plate 302 is held inside the inner slots 301; the dispersion plate 302 is used for internal addition of the agent, so as to assist in the addition of the agent; a docking block 4 is fixedly connected to the bottom end of the mixing rod 203; the docking block 4 is used to cooperate with the synchronization groove 401 to assist in the connection with the mixing rod 203, so as to facilitate the mixing rod 203 to drive the dispersion plate 3 to rotate.

[0023] Example 2: Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 6As shown, the outer cylinder 1 has a shaft hole at its bottom and an external discharge hole at its bottom, and a circular through hole at its top. The outer cylinder 1 is used to assist in the installation and fixation of other structures of the device to facilitate reaction processing. An external branch hole 101 is provided on the outer wall of the outer cylinder 1. The external branch hole 101 is used to connect with a set of interfaces of the addition pipe 104 to facilitate the dilution of the added reagent by reflux, and to facilitate better dispersion of the reagent during the addition process. The inner cylinder 102 has a shaft hole at its bottom. The branch hole 103 is connected to the addition pipe 104. The addition pipe 104 is set as a three-way pipe. The addition pipe 104 is used to assist in connecting the outer cylinder 1 with external addition equipment and the dispersion plate 3 to facilitate the mixing of the reagent.

[0024] A shaft hole is provided in the middle of the top cover 2; the top cover 2 is used to cover the top of the inner cylinder 102 to help maintain the airtightness of the inner cylinder 102; a shaft hole is provided on the fixed frame 201; the hybrid rod 203 is rotatably connected in the shaft hole of the top cover 2; the hybrid rod 203 is rotatably connected in the shaft hole of the fixed frame 201.

[0025] The outer pipe port at the bottom of the dispersing plate 3 is rotatably connected to a set of interfaces of the adding pipe 104; the top layer of the dispersing plate 3 is rotatably connected inside the inner cylinder 102; the top of the dispersing plate 3 is provided with a hexagonal prism protrusion.

[0026] The inner slot 301 is connected to the diversion pipeline inside the dispersing plate 3; the top of the dispersing plate 302 is provided with a nozzle, and the dispersing plate 302 is connected to the diversion pipeline inside the dispersing plate 3.

[0027] The top of the docking block 4 is provided with a cylindrical groove; the bottom of the docking block 4 is provided with a synchronization groove 401; the synchronization groove 401 is set as a hexagonal prism groove; the hexagonal prism protrusion on the top of the dispersing rotating plate 3 is inserted into the synchronization groove 401; the synchronization groove 401 is used to assist the docking block 4 in connecting with the mixing rod 203, so as to facilitate the synchronous rotation of the mixing rod 203 and the dispersing rotating plate 3.

[0028] A mounting bracket 402 is fixedly connected to the mixing rod 203; the mounting bracket 402 is used to assist in fixing the mixing plate 403 and mixing the sewage; the mixing plate 403 is fixedly connected at equal intervals on the outer wall of the mounting bracket 402; the mixing plate 403 is used to mix the sewage to facilitate its thorough mixing with the reagent.

[0029] The specific usage and function of this embodiment are as follows: In this invention, the outer cylinder 1 is securely placed in a designated position using a bottom support structure. It is connected to an external adding pipe 104 via an external branch hole 101. Another port of the adding pipe 104 is connected to an external reagent adding device. The remaining port is rotatably connected to the external pipe opening at the bottom of the dispersing plate 3, ensuring the unobstructed flow of the reagent delivery pipeline. The inner cylinder 102 is fixed inside the outer cylinder 1 through a circular through hole. The top of the inner cylinder 102 is sealed using a top cover 2. A mounting frame 201 and a control motor 202 are sequentially installed above the top cover 2, and the mixing rod 2 is... 03. The shaft holes of the top cover 2 and the fixed frame 201 are used to connect the top of the hybrid rod 203 to the motor shaft of the control motor 202. The bottom docking block 4 is inserted into the hexagonal prism protrusion on the top of the dispersing plate 3 through the synchronous groove 401, realizing the transmission connection between the control motor 202 and the dispersing plate 3. When the external agent addition device is turned on, the agent enters the distribution pipeline inside the dispersing plate 3 through the addition pipe 104. Since the dispersing plate 3 is set as a double-layer structure and has a distribution pipeline inside, the agent can be evenly distributed to the dispersing plates 3 connected to each inner slot 301. 02. Start the control motor 202. Its motor shaft drives the mixing rod 203 to rotate. The mixing rod 203 drives the dispersing plate 3 to rotate synchronously through the docking block 4. During the rotation, the nozzle at the top of the dispersing plate 302 sprays the agent evenly into the sewage in the inner cylinder 102, realizing the initial dispersion and addition of the agent. The sewage is pre-loaded into the inner cylinder 102. While the dispersing plate 3 rotates and sprays the agent, the mounting bracket 402 on the mixing rod 203 drives the mixing plate 403 to rotate synchronously. The mixing plate 403 stirs the water flow, so that the sewage and the initially added agent are mixed. The wastewater is thoroughly mixed and undergoes a primary mixing process within the inner cylinder 102. The mixed wastewater then enters the space between the outer cylinder 1 and the inner cylinder 102 through the dividing hole 103 and the adding pipe 104. The wastewater entering the space between the outer cylinder 1 and the inner cylinder 102 can be diluted and mixed again by adding chemicals through the outer dividing hole 101 as needed. Under the action of gravity and water flow, the wastewater in the outer cylinder 1 further mixes and reacts with the chemicals, achieving full oxidation and degradation of pollutants in the wastewater. After treatment, the purified wastewater can be discharged through the external discharge hole at the bottom of the outer cylinder 1.

[0030] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0031] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0032] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A fluidized bed Fenton reactor, comprising: Outer cylinder (1); characterized in that: an inner cylinder (102) is fixedly connected to the inside of the outer cylinder (1) through a circular through hole; the outer wall of the inner cylinder (102) is provided with equally spaced cylinder holes (103); the top of the inner cylinder (102) is provided with a top cover (2); a fixed frame (201) is fixedly connected to the top of the top cover (2); a control motor (202) is fixedly connected to the top of the fixed frame (201); the motor shaft of the control motor (202) is connected to a hybrid rod (203). A dispersing plate (3) is rotatably connected to the shaft hole at the bottom of the outer cylinder (1); the dispersing plate (3) is configured as a double-layer structure, the interior of the dispersing plate (3) is provided with a diversion pipe, and the bottom of the dispersing plate (3) is provided with an outer pipe port; the double-layer plates of the dispersing plate (3) are provided with inner slots (301) at equal intervals; a dispersing plate (302) is inserted inside the inner slot (301); a connecting block (4) is fixedly connected to the bottom end of the mixing rod (203).

2. The fluidized bed Fenton reactor according to claim 1, characterized in that: The outer cylinder (1) has a shaft hole at the bottom and an external discharge hole at the bottom. The outer cylinder (1) has a circular through hole at the top. The outer cylinder (1) has an external branch hole (101) on its outer wall. The inner cylinder (102) has a shaft hole at the bottom. The branch hole (103) is connected to an adding pipe (104). The adding pipe (104) is a three-way pipe.

3. A fluidized bed Fenton reactor according to claim 1, characterized in that: The top cover (2) has a shaft hole in the middle; the fixed frame (201) has a shaft hole; the hybrid rod (203) is rotatably connected in the shaft hole of the top cover (2); the hybrid rod (203) is rotatably connected in the shaft hole of the fixed frame (201).

4. A fluidized bed Fenton reactor according to claim 2, characterized in that: The outer pipe port at the bottom of the dispersing plate (3) is rotatably connected to a set of interfaces of the adding pipe (104); the top layer of the dispersing plate (3) is rotatably connected inside the inner cylinder (102); the top of the dispersing plate (3) is provided with a hexagonal prism protrusion.

5. A fluidized bed Fenton reactor according to claim 1, characterized in that: The inner slot (301) is connected to the diversion pipeline inside the dispersing plate (3); the top of the dispersing plate (302) is provided with a nozzle, and the dispersing plate (302) is connected to the diversion pipeline inside the dispersing plate (3).

6. A fluidized bed Fenton reactor according to claim 1, characterized in that: The top of the docking block (4) is provided with a cylindrical groove; the bottom of the docking block (4) is provided with a synchronization groove (401); the synchronization groove (401) is set as a hexagonal prism groove; the hexagonal prism protrusion on the top of the dispersing plate (3) is inserted into the synchronization groove (401).

7. A fluidized bed Fenton reactor according to claim 1, characterized in that: A mounting bracket (402) is fixedly connected to the hybrid rod (203); hybrid plates (403) are fixedly connected at equal intervals to the outer wall of the mounting bracket (402).

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