Heterogeneous catalytic oxidation sewage treatment device

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a heterogeneous catalytic oxidation sewage treatment device which comprises a sewage treatment box, the bottom of the sewage treatment box is conical, a blow-off pipe is fixedly connected to the center of the bottom of the sewage treatment box, and a drainage pipe is fixedly connected to the bottom of the front side outside the sewage treatment box. According to the utility model, the servo motor in the stirring mechanism drives the main shaft and the stirring rod to axially rotate and stir and synchronously drives the stirring rod to radially rotate and stir, and the main shaft synchronously drives a heterogeneous catalysis plate in the aeration mixing mechanism to rotate, so that the full contact between sewage and a catalyst is fully realized, the reaction speed is increased, and the reaction efficiency is improved. In the rotating process of a mounting frame in the aeration mixing mechanism, air is introduced into a nozzle on the mounting frame by using an air pump to be sprayed out, so that the air is introduced while rotating reaction is performed, the uniform distribution of the air in the sewage is ensured, the reaction rate of heterogeneous catalytic oxidation is further improved, and the sewage treatment effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment technology, specifically relating to a multiphase catalytic oxidation wastewater treatment device. Background Technology

[0002] Multiphase catalytic oxidation is a highly efficient wastewater treatment technology that uses solid catalysts to promote the reaction of organic and inorganic pollutants in wastewater with oxygen or other oxidants, thereby achieving the purpose of degrading or mineralizing pollutants. In the process of multiphase catalytic oxidation, solid catalysts are usually used to oxidize and degrade organic matter in wastewater, which requires the use of multiphase catalytic oxidation wastewater treatment devices.

[0003] In existing technologies, a fixed catalyst is typically filled into a fixed container to form a fixed bed. Wastewater then flows through the fixed bed and undergoes a heterogeneous catalytic oxidation reaction with the solid catalyst within, thereby achieving wastewater treatment. However, the existing heterogeneous catalytic catalysts are fixedly installed after being filled into the container, making it difficult to achieve sufficient contact with the wastewater. This results in a long wastewater treatment time and reduced wastewater treatment efficiency. Furthermore, the heterogeneous catalytic oxidation process requires the introduction of air to accelerate oxidation. However, the existing oxygen supply pipes are fixedly installed, causing uneven distribution of oxygen in the wastewater and reducing the efficiency of the oxidation reaction. Utility Model Content

[0004] The purpose of this invention is to provide a simple and rationally designed multiphase catalytic oxidation wastewater treatment device to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A multiphase catalytic oxidation wastewater treatment device includes a wastewater treatment tank with a conical bottom. A sewage discharge pipe is fixedly connected to the center of the bottom of the wastewater treatment tank, a drain pipe is fixedly connected to the bottom of the front side of the wastewater treatment tank, and an inlet pipe is fixedly connected to the top of the rear side of the wastewater treatment tank. The wastewater treatment tank is equipped with a stirring mechanism for stirring the wastewater, and the stirring mechanism is equipped with an aeration mixing mechanism.

[0007] The stirring mechanism includes a drive component and an execution component. The execution component is located below the drive component and includes a main shaft that rotates through the center of the top of the sewage treatment tank.

[0008] The aeration mixing mechanism includes several fixed pipes fixedly connected to the outer wall of the main shaft. The fixed pipes are arranged in pairs, symmetrically distributed vertically. The two fixed pipes in the same group are fixedly connected to a mounting frame. A multiphase catalytic plate is fixedly connected to the middle of the mounting frame, and the inside of the mounting frame is a cavity. An air pump is fixedly connected to the inner wall of the main shaft. The output end of the air pump is fixedly connected to an annular pipe through an air outlet pipe. The annular pipe is fixedly connected to the inner wall of the main shaft, and connecting pipes corresponding to the fixed pipes are evenly installed on the outside of the annular pipe. The connecting pipes communicate with the inside of the fixed pipes, and the fixed pipes communicate with the cavity inside the mounting frame. Several aeration nozzles are evenly installed on the outside of the mounting frame. An air inlet pipe is fixedly connected to the input end of the air pump, and the air inlet pipe is fixedly connected through the top of the main shaft.

[0009] Preferably, the drive assembly includes a pad fixedly connected to the top of the sewage treatment tank, a servo motor fixedly connected to the top of the pad, a first driving bevel gear fixedly sleeved at the middle of the output end of the servo motor, a second driving bevel gear fixedly sleeved near the end face of the output end of the servo motor, a fixed block fixedly connected to the middle of the inside of the main shaft, and a transmission shaft rotatably passing through the center of the fixed block, and a first driven bevel gear meshing with the second driving bevel gear fixedly sleeved at the top of the transmission shaft after it rotatably passes through the center of the top of the main shaft, and a second driven bevel gear meshing with the first driving bevel gear fixedly sleeved at the top of the main shaft.

[0010] Preferably, a No. 3 driving bevel gear is fixedly sleeved on the lower part of the transmission shaft, and a number of stirring rods are evenly installed on the lower outer wall of the main shaft. A No. 1 bearing block is fixedly connected to the center of the stirring rod. A rotating rod is rotatably passed through the center of the No. 1 bearing block. A No. 3 driven bevel gear that meshes with the No. 3 driving bevel gear is fixedly sleeved on one end of the rotating rod, and a fixed head is fixedly connected to the other end of the rotating rod after it rotates through the center of the side of the stirring rod away from the main shaft. A number of stirring rods are evenly installed on the outside of the fixed head.

[0011] Preferably, a second bearing block is rotatably connected to the bottom of the drive shaft, the second bearing block is fixedly connected to the bottom surface inside the main shaft, a connecting rod is fixedly connected to the center of the bottom of the main shaft, a scraper is fixedly connected to the bottom of the connecting rod, and a fixed bearing is rotatably sleeved on the upper part of the main shaft. The fixed bearing is fixedly installed at the center of the top surface inside the sewage treatment tank.

[0012] Preferably, a protective cover is fixedly connected to the top of the sewage treatment tank, and an air inlet is provided on the left side of the top of the protective cover. A fixing ring is fixedly sleeved on the lower part of the sewage treatment tank, and three support legs are evenly installed at the bottom of the fixing ring.

[0013] Preferably, valve No. 3 is fixedly installed on the sewage pipe, valve No. 2 is fixedly installed on the water inlet pipe, and valve No. 1 is fixedly installed on the drainage pipe.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model uses a servo motor in the stirring mechanism to drive the main shaft and stirring rod to rotate axially and simultaneously drive the stirring rod to rotate radially. The main shaft also drives the multiphase catalytic plate in the aeration mixing mechanism to rotate synchronously, thus fully realizing the contact between wastewater and catalyst and improving the reaction rate.

[0016] 2. In this invention, during the rotation of the mounting frame in the aeration mixing mechanism, air is introduced into the nozzles on the mounting frame by an air pump and sprayed out. This achieves simultaneous rotation and reaction with air supply, ensuring uniform distribution of air in the wastewater, further improving the reaction rate of multiphase catalytic oxidation, and enhancing the wastewater treatment effect. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0018] Figure 2 This is a partial sectional perspective view of the overall structure of this utility model;

[0019] Figure 3 This is a perspective view of the stirring mechanism, aeration mixing mechanism, connecting rod, and scraper of this utility model;

[0020] Figure 4 This is the utility model Figure 3 Enlarged schematic diagram of region A in the middle.

[0021] In the diagram: 1. Wastewater treatment tank; 2. Protective cover; 3. Air inlet; 4. Fixing ring; 5. Valve No. 1; 6. Drain pipe; 7. Sewage pipe; 8. Stirring mechanism; 81. Drive assembly; 811. Servo motor; 812. First driving bevel gear; 813. Second driving bevel gear; 814. First driven bevel gear; 815. Second driven bevel gear; 816. Pad; 82. Actuating assembly; 821. Stirring rod; 822. Rotating rod; 823. Stirring bar; 82 4. Main shaft; 825. Drive shaft; 826. Bearing block No. 1; 827. Bearing block No. 2; 828. Driven bevel gear No. 3; 829. Driven bevel gear No. 3; 9. Aeration mixing mechanism; 91. Aeration nozzle; 92. Mounting frame; 93. Multiphase catalytic plate; 94. Fixed pipe; 95. Annular pipe; 96. Connecting pipe; 97. Air pump; 10. Valve No. 2; 11. Inlet pipe; 12. Connecting rod; 13. Scraper; 14. Valve No. 3; 15. Fixed bearing. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Example 1

[0024] Please see Figure 1 and Figure 2 A multiphase catalytic oxidation wastewater treatment device includes a wastewater treatment tank 1 with a conical bottom. A drain pipe 7 is fixedly connected to the center of the bottom of the wastewater treatment tank 1. A drain pipe 6 is fixedly connected to the bottom of the front side of the wastewater treatment tank 1, and an inlet pipe 11 is fixedly connected to the top of the rear side of the wastewater treatment tank 1. A stirring mechanism 8 for stirring wastewater is provided on the wastewater treatment tank 1, and an aeration mixing mechanism 9 is provided on the stirring mechanism 8. In use, the stirring mechanism 8 is used to simultaneously stir the wastewater axially and radially, and the aeration mixing mechanism 9 is used to introduce air during rotation.

[0025] Please see Figure 1 and Figure 2 The top of the sewage treatment tank 1 is fixedly connected to a protective cover 2, and an air inlet 3 is opened on the left side of the top of the protective cover 2. A fixing ring 4 is fixedly sleeved on the lower part of the sewage treatment tank 1. Three support legs are evenly installed at the bottom of the fixing ring 4. A valve 14 is fixedly installed on the sewage discharge pipe 7. A valve 10 is fixedly installed on the water inlet pipe 11. A valve 5 is fixedly installed on the drain pipe 6. A door (not shown in the figure) is provided on the left side of the sewage treatment tank 1. A sealing ring is provided between the door and the sewage treatment tank 1.

[0026] Please see Figure 2 and Figure 3 The stirring mechanism 8 includes a drive assembly 81 and an execution assembly 82. The execution assembly 82 is located below the drive assembly 81 and includes a main shaft 824 that rotates through the center of the top of the sewage treatment tank 1. The main shaft 824 has a hollow structure. The drive assembly 81 includes a pad 816 fixedly connected to the top of the sewage treatment tank 1. A servo motor 811 is fixedly connected to the top of the pad 816. A first drive bevel gear 812 is fixedly sleeved in the middle of the output end of the servo motor 811, and a second drive bevel gear 812 is fixedly sleeved near the end face of the output end of the servo motor 811. 3. A fixed block is fixedly connected to the center of the main shaft 824, and a drive shaft 825 is rotatably passed through the center of the fixed block. The top of the drive shaft 825 rotatably passes through the center of the top of the main shaft 824 and is fixedly sleeved with a driven bevel gear 814 that meshes with the second driving bevel gear 813. The top of the main shaft 824 is fixedly sleeved with a driven bevel gear 815 that meshes with the first driving bevel gear 812. The tooth ratio of the second driving bevel gear 813 to the first driven bevel gear 814 is 1:1, and the tooth ratio of the second driven bevel gear 815 to the first driving bevel gear 812 is 2:1.

[0027] Please see Figure 1 and Figure 2A third driving bevel gear 829 is fixedly sleeved at the lower part of the drive shaft 825. Several stirring rods 823 are evenly installed on the lower outer wall of the main shaft 824. The stirring rods 823 have a hollow structure. A first bearing block 826 is fixedly connected to the center of the stirring rod 823. A rotating rod 822 rotates through the center of the first bearing block 826. A third driven bevel gear 828 that meshes with the third driving bevel gear 829 is fixedly sleeved at one end of the rotating rod 822. The other end of the rotating rod 822 rotates through the center of the stirring rod 823 on the side away from the main shaft 824 and is then fixedly connected. It has a fixed head, and several stirring rods 821 are evenly installed on the outside of the fixed head. The bottom of the drive shaft 825 is rotatably connected to the second bearing block 827. The second bearing block 827 is fixedly connected to the bottom surface of the main shaft 824. The bottom center of the main shaft 824 is fixedly connected to the connecting rod 12. The bottom of the connecting rod 12 is fixedly connected to the scraper 13. The upper part of the main shaft 824 is rotatably sleeved with a fixed bearing 15. The fixed bearing 15 is fixedly installed in the center of the top surface inside the sewage treatment tank 1. The gear ratio of the third driving bevel gear 829 and the third driven bevel gear 828 is one to one.

[0028] Please see Figure 3 and Figure 4 The aeration and mixing mechanism 9 includes several fixed pipes 94 fixedly connected to the outer wall of the main shaft 824. The fixed pipes 94 are arranged symmetrically in pairs, and the two fixed pipes 94 in the same group are fixedly connected to a mounting frame 92. A multiphase catalyst plate 93 is fixedly connected to the middle of the mounting frame 92, and the inside of the mounting frame 92 is a cavity. An air pump 97 is fixedly connected to the inner wall of the main shaft 824. The output end of the air pump 97 is fixedly connected to an annular pipe 95 through an air outlet pipe. The annular pipe 95 is fixedly connected to the inner wall of the main shaft 824. Furthermore, the annular tube 95 is uniformly equipped with connecting pipes 96 that correspond one-to-one with the fixed tube 94. The connecting pipes 96 are connected to the inside of the fixed tube 94, and the fixed tube 94 is connected to the cavity inside the mounting frame 92. A number of aeration nozzles 91 are uniformly installed on the outside of the mounting frame 92. The input end of the air pump 97 is fixedly connected to an air inlet pipe (not shown in the figure), and the air inlet pipe is fixedly passed through the top of the main shaft 824. The top end of the air inlet pipe is located between the first driven bevel gear 814 and the second driven bevel gear 815, so there will be no interference.

[0029] It should be noted that, in operation of this multiphase catalytic oxidation wastewater treatment device, firstly, valve 10 is opened to allow wastewater to be transported to the wastewater treatment tank 1 through inlet pipe 11. At this time, servo motor 811 is started. The output of servo motor 811 synchronously drives the first driving bevel gear 812 and the second driving bevel gear 813 to rotate synchronously, which in turn synchronously drives the first driven bevel gear 814 and the second driven bevel gear 815 to rotate. The rotation of the second driven bevel gear 815 drives the main shaft 824 and its components. The stirring rod 823 and stirring bar 821 rotate around the axis of the main shaft 824, achieving axial rotational stirring. The rotation of the first driven bevel gear 814 drives the transmission shaft 825 and the third driving bevel gear 829 on it to rotate, which in turn drives the third driven bevel gear 828 and the rotating rod 822 on it to rotate, thereby driving the stirring rod 821 to rotate around the axis of the rotating rod 822, achieving radial rotational stirring. At the same time, the rotation of the main shaft 824 drives the fixed tube 94 and the mounting frame 92 on it to rotate. Then, the multiphase catalytic plate 93 rotates synchronously around the axis of the main shaft 824, which is conducive to the full contact between the catalyst in the multiphase catalytic plate 93 and the sewage, thus improving the sewage treatment efficiency. At the same time as the rotation, the air pump 97 is started, which delivers outside air to the annular pipe 95, and then after being diverted, it enters the fixed pipe 94 through the connecting pipe 96, and then enters the mounting frame 92, and is sprayed out from the aeration nozzle 91 on the mounting frame 92. This realizes the simultaneous introduction of oxygen while rotating, which effectively ensures the full contact between oxygen and sewage, improves the oxidation reaction effect, and improves the sewage treatment effect. After the sewage treatment is completed, the sludge settles at the bottom of the sewage treatment tank 1. At this time, the first valve 5 is opened, and the treated water is discharged through the drain pipe 6. After discharge, the third valve 14 is opened, and the settled sludge is discharged through the sewage pipe 7. At the same time, as the main shaft 824 rotates synchronously, the connecting rod 12 and the scraper 13 on it rotate, scraping the settled sludge into the sewage pipe 7 for discharge, thus avoiding sludge residue.

[0030] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A multiphase catalytic oxidation sewage treatment plant comprising a sewage treatment tank (1), characterised in that: The sewage treatment tank (1) bottom is conical, the sewage treatment tank (1) bottom center is fixedly connected with a sewage pipe (7), the sewage treatment tank (1) outside front bottom is fixedly connected with a drain pipe (6), and the sewage treatment tank (1) outside rear top is fixedly connected with a water inlet pipe (11), the sewage treatment tank (1) is provided with a stirring mechanism (8) for stirring sewage, and the stirring mechanism (8) is provided with an aeration mixing mechanism (9); The stirring mechanism (8) includes a driving assembly (81) and an execution assembly (82), the execution assembly (82) is arranged below the driving assembly (81), and the execution assembly (82) includes a main shaft (824) rotating through the top center of the sewage treatment tank (1); The aeration mixing mechanism (9) includes a plurality of fixed pipes (94) fixedly connected to the outer wall of the main shaft (824), the fixed pipes (94) are symmetrically distributed in pairs, and the two fixed pipes (94) in the same group are fixedly connected with a mounting frame (92), the mounting frame (92) is fixedly connected with a multi-phase catalytic plate (93) in the middle, and the mounting frame (92) is a cavity, a gas pump (97) is fixedly connected to the inner wall of the main shaft (824), an annular pipe (95) is fixedly connected to the output end of the gas pump (97), the annular pipe (95) is fixedly connected to the inner wall of the main shaft (824), and a plurality of connecting pipes (96) corresponding to the fixed pipes (94) are uniformly arranged on the outer surface of the annular pipe (95), the connecting pipes (96) and the fixed pipes (94) are in communication, the fixed pipes (94) and the cavity in the mounting frame (92) are in communication, and a plurality of aeration nozzles (91) are uniformly arranged on the outer surface of the mounting frame (92), the input end of the gas pump (97) is fixedly connected with an air inlet pipe, and the air inlet pipe is fixedly connected through the top of the main shaft (824).

2. A multiphase catalytic wastewater treatment device according to claim 1, wherein: The driving assembly (81) includes a cushion block (816) fixedly connected to the top of the sewage treatment tank (1), a servo motor (811) fixedly connected to the top of the cushion block (816), a first driving bevel gear (812) fixedly sleeved on the output end of the servo motor (811), a second driving bevel gear (813) fixedly sleeved on the output end of the servo motor (811), a fixed block fixedly connected to the inner part of the main shaft (824), and a transmission shaft (825) rotatingly penetrating through the center of the fixed block, a first driven bevel gear (814) fixedly sleeved on the top of the transmission shaft (825) and rotatingly penetrating through the top center of the main shaft (824) and meshing with the second driving bevel gear (813), and a second driven bevel gear (815) fixedly sleeved on the top of the main shaft (824) and meshing with the first driving bevel gear (812).

3. A multiphase catalytic wastewater treatment device according to claim 2, wherein: The lower part of the transmission shaft (825) is fixedly sleeved with a third driving bevel gear (829), the outer wall of the lower part of the main shaft (824) is uniformly provided with a plurality of stirring rods (823), the inner part of the stirring rod (823) is fixedly connected with a first bearing block (826) in the middle, the first bearing block (826) is rotatably penetrated by a rotating rod (822) in the center, one end of the rotating rod (822) is fixedly sleeved with a third driven bevel gear (828) engaged with the third driving bevel gear (829), and the other end of the rotating rod (822) is rotatably penetrated through the center of the side of the stirring rod (823) away from the main shaft (824) and is fixedly connected with a fixed head, and the outer part of the fixed head is uniformly provided with a plurality of stirring rods (821).

4. A multiphase catalytic wastewater treatment device according to claim 3, wherein: The bottom of the transmission shaft (825) is rotatably connected with a second bearing block (827), the second bearing block (827) is fixedly connected to the inner bottom surface of the main shaft (824), the bottom center of the main shaft (824) is fixedly connected with a connecting rod (12), the bottom of the connecting rod (12) is fixedly connected with a scraper (13), the middle and upper part of the main shaft (824) is rotatably sleeved with a fixed bearing (15), and the fixed bearing (15) is fixedly installed on the inner top center of the sewage treatment tank (1).

5. A multiphase catalytic wastewater treatment device according to claim 1, wherein: The top of the sewage treatment tank (1) is fixedly connected with a protective cover (2), an air inlet (3) is formed in the top left side of the protective cover (2), the middle and lower part of the sewage treatment tank (1) is fixedly sleeved with a fixed ring (4), and the bottom of the fixed ring (4) is uniformly provided with three supporting legs.

6. A multiphase catalytic wastewater treatment device according to claim 1, wherein: The sewage pipe (7) is fixedly provided with a third valve (14), the water inlet pipe (11) is fixedly provided with a second valve (10), and the drain pipe (6) is fixedly provided with a first valve (5).

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