A decoloring reaction system and process for improving ozone utilization rate

Abstract

The application relates to a decoloring reaction system for improving ozone utilization, which comprises a first reaction kettle and a second reaction kettle, the first reaction kettle and the second reaction kettle are both provided with a drainage port, the first reaction kettle is connected with a gas inlet pipe for ozone, and the second reaction kettle is provided with an exhaust port; a connecting pipe is connected between the first reaction kettle and the second reaction kettle, the inlet end of the connecting pipe is communicated with the first reaction kettle, and the outlet end of the connecting pipe is communicated with the second reaction kettle; a catalyst layer is arranged in the first reaction kettle and the second reaction kettle, and the catalyst layer is used for passing sewage and ozone to perform catalysis. The decoloring reaction system for improving ozone utilization can improve the utilization of ozone. The application also relates to a decoloring reaction process for improving ozone utilization.

Description

Technical Field

[0001] This application relates to the technical field of wastewater decolorization reaction, and in particular to a decolorization reaction system and decolorization process for improving ozone utilization. Background Technology

[0002] In wastewater treatment, ozone's strong oxidizing properties are generally used to break down the molecular chains of large organic molecules, turning them into smaller organic molecules. It can also oxidize some organic matter in the water into simple inorganic substances, thereby reducing COD.

[0003] In existing technologies, wastewater decolorization is carried out in a reaction vessel containing a catalyst layer (such as an activated carbon layer). Ozone and wastewater are introduced into the reaction vessel, allowing them to mix and react. The ozone and wastewater pass through the catalyst layer from bottom to top, which increases the reaction rate between the ozone and wastewater, thereby improving the efficiency of wastewater decolorization. The reaction vessel is equipped with an exhaust pipe and a drain pipe. After the ozone reacts with the wastewater, oxygen and treated water (decolorized wastewater) are formed. The oxygen is discharged through the exhaust pipe, and the treated water is discharged through the drain pipe.

[0004] However, in this type of wastewater decolorization process, the oxygen generated after the ozone reacts with the wastewater is directly discharged from the exhaust pipe. When the reaction between ozone and wastewater is insufficient, the oxygen discharged from the exhaust pipe contains a large amount of ozone, which is directly discharged, resulting in a waste of ozone. Therefore, further improvements are needed. Summary of the Invention

[0005] In order to improve the utilization rate of ozone, this application provides a decolorization reaction system and decolorization process for improving ozone utilization.

[0006] Firstly, the decolorization reaction system for improving ozone utilization provided in this application adopts the following technical solution:

[0007] A decolorization reaction system for improving ozone utilization includes a first reaction vessel and a second reaction vessel. Both the first and second reaction vessels are provided with drain outlets. The first reaction vessel is connected to an inlet pipe for introducing ozone, and the second reaction vessel is provided with an exhaust outlet. A connecting pipe connects the first and second reaction vessels, with the inlet end of the connecting pipe connected to the first reaction vessel and the outlet end connected to the second reaction vessel. A catalyst layer is provided inside both the first and second reaction vessels, and the catalyst layer is used to allow wastewater and ozone to pass through for catalysis.

[0008] By adopting the above technical solution, and through the connection pipe and the setting of the second reactor, during the decolorization reaction, wastewater is introduced into the first reactor through the water inlet, and ozone is introduced into the first reactor through the air inlet, so that ozone and wastewater are mixed and reacted. As ozone and wastewater are continuously added, ozone and wastewater pass through the catalyst layer, which can increase the reaction rate between ozone and wastewater. After the ozone and wastewater react, the mixed gas (ozone and oxygen) is introduced into the second reactor through the connection pipe to carry out the decolorization reaction of the wastewater in the second reactor, which greatly improves the utilization rate of ozone and saves energy.

[0009] Optionally, both the first and second reaction vessels are provided with mounting ring seats. The catalyst layer includes two contact layers installed in the mounting ring seats. The two contact layers are spaced apart along the height direction of the mounting ring seats, and a flow gap is formed between the two contact layers.

[0010] By adopting the above technical solution, the catalyst layer is divided into two contact layers through the setting of the contact layer, forming two contact layers. A flow gap is formed between the two contact layers. When sewage and ozone are introduced, the sewage and ozone first enter the flow gap through one of the contact layers, and then enter the other contact layer through the flow gap. This greatly increases the contact area between the catalyst layer and the sewage, and between the catalyst layer and the ozone, thereby improving the catalytic effect and thus improving the decolorization effect of the sewage.

[0011] Optionally, the inner wall of the mounting ring seat is provided with a moving groove, and the contact layer includes a first moving layer and a second moving layer, both of which are slidably mounted in the moving groove; the mounting ring seat is provided with a driving component, which is used to drive the first moving layer and the second moving layer to slide along the moving groove to exchange the first moving layer of the two contact layers.

[0012] By adopting the above technical solution, and through the setting of the first and second moving layers, under normal conditions, the two contact layers catalyze ozone and wastewater in sequence. As ozone and wastewater continue to catalyze, the contact layer that comes into contact with wastewater first is more likely to adsorb impurities and cause blockage. By driving the first and second moving layers of the two contact layers to slide and exchange the first moving layers of the two contact layers, a balance can be achieved between the two contact layers, reducing the possibility of blockage of the contact layer that comes into contact with wastewater first, which would reduce the overall decolorization effect.

[0013] Optionally, the driving assembly includes a driving gear, a first rack, a second rack, and a driving member. The driving gear is rotatably mounted on the inner wall of the mounting ring. Two first racks are provided and corresponding to two contact layers, with each first rack positioned on the first movable layer of the corresponding contact layer. Two second racks are provided and corresponding to two contact layers, with each second rack positioned on the second movable layer of the corresponding contact layer. All first racks and all second racks mesh with the driving gear for transmission. The first racks are vertically arranged to drive the first movable layer to slide along the height direction, and the second racks are horizontally arranged to drive the second movable layer to slide along the horizontal direction. The driving member is disposed on the driving gear to drive the driving gear to rotate.

[0014] By adopting the above technical solution, through the arrangement of the drive gear, the first rack, the second rack, and the drive component, when it is necessary to balance the two contact layers, the drive component drives the drive gear to rotate, which can drive all the first racks and all the second racks to slide, thereby driving all the first moving layers and all the second moving layers to slide along the moving groove. The first rack is set vertically, so that during the sliding process of the first rack, it can drive the first moving layer to slide along the height direction. The second rack is set horizontally, so that during the sliding process of the second rack, it can drive the second moving layer to slide along the horizontal direction. The two first moving layers and the two second moving layers form a circular movement to exchange the first moving layers of the two contact layers, which greatly improves the convenience of exchanging the first moving layers between the two contact layers.

[0015] Optionally, the first and second moving layers of the contact layer are normally in contact with each other. The second moving layer has a moving strip on its side wall near the moving groove. The moving strip is slidably installed in the moving groove, and the second moving layer is slidably installed in the moving groove through the moving strip. The moving strip has a sliding groove on its side wall near the drive gear. A sliding block is slidably installed in the sliding groove. The second rack is connected to the sliding block, and the second rack is slidably installed in the second moving layer through the sliding block. When the first moving layer slides along the length direction of the first rack and is not detached from the second moving layer, the sliding block slides along the length direction of the sliding groove. When the first moving layer slides along the length direction of the first rack and is detached from the second moving layer, the second rack can drive the second moving layer to the initial position of the first moving layer.

[0016] By adopting the above technical solution, and through the setting of the sliding block and sliding groove, under normal conditions, the first and second moving layers of the contact layer are in contact with each other to jointly catalyze ozone and wastewater. When the first and second racks are slid by the drive gear, the second moving layer remains stationary due to the obstruction of the first moving layer. At this time, the sliding block slides in the sliding groove, allowing the first moving layer to slide along the height direction. When the first moving layer slides along the height direction and detaches from the second moving layer, the second rack can drive the second moving layer to the initial position of the first moving layer, thereby forming a circular movement between the two first moving layers and the two second moving layers. The setting of the sliding block and sliding groove can avoid the possibility of the drive gear getting stuck due to the normal contact between the first and second moving layers, thus enabling the two contact layers to exchange the first moving layer.

[0017] Optionally, a return spring is provided in the sliding groove. One end of the return spring is connected to the inner wall of the sliding groove, and the other end is connected to the sliding block. When the first moving layer slides along the length direction of the first rack and the first moving layer does not detach from the second moving layer, the return spring contracts and deforms and retains elasticity.

[0018] By adopting the above technical solution, and by setting the reset spring, the normal state of the reset spring causes the sliding block to abut against the side wall of the sliding groove away from the first moving layer. When the drive gear is driven to rotate, the second rack can pull the sliding block to slide along the sliding groove, thereby squeezing the reset spring and forcing the reset spring to have elastic force. When the first moving layer is separated from the second moving layer, the reset spring restores its deformation, thereby driving the second moving layer to move towards the initial position of the first moving layer.

[0019] Optionally, a moving block is fixed to the side wall of the first moving layer near the moving groove, and the moving block is slidably installed in the moving groove. The first moving layer is slidably installed in the moving groove through the moving block. The bottom wall of the moving groove is provided with a plurality of embedding slots, and each embedding slot is provided with a striking element. When the first moving layer slides along the length direction of the first rack, the striking element strikes the moving block to make the first moving layer vibrate.

[0020] By adopting the above technical solution, and through the setting of the tapping element, when the first moving layer is exchanged between the two contact layers, the first moving layer is driven to slide along the normal direction of the first rack, so that the moving block slides in the moving groove. During the sliding process of the moving block, the tapping element taps the moving block, causing the first moving layer to vibrate, thereby reducing the possibility of the first moving layer becoming blocked when it catalyzes wastewater and ozone, and improving the catalytic effect of the first moving layer.

[0021] Optionally, the striking component includes a guide block, a compression spring, and a striking rod. The guide block is slidably installed in the recessed groove, and the compression spring is installed between the recessed groove and the guide block. The compression spring normally causes the guide block to partially move into the movable groove. The guide block has a guide surface for the movable block to abut against, so that the guide block moves into the recessed groove. The striking rod is connected to the guide block. When the movable block drives the guide block into the recessed groove and continues to move the movable block to disengage from the guide block, the compression spring pushes the striking rod to strike the movable block.

[0022] By adopting the above technical solution, through the setting of guide block, compression spring and striking rod, during the process of the moving block moving along the moving groove, the moving block pushes the guide block through the guide surface and forces the guide block to move into the embedded groove, so that the compression spring deforms and retains elasticity; as the moving block continues to move, when the moving block is separated from the guide block, the guide block moves partially into the moving groove under the action of the elasticity of the compression spring, thereby driving the striking rod to strike the moving block, thereby enabling the first moving layer to vibrate and improve the catalytic effect of the first moving layer.

[0023] Optionally, the first movable layer includes a mounting frame and first catalyst particles, wherein the mounting frame is slidably mounted within a mounting ring seat, and the first catalyst particles are filled within the mounting frame.

[0024] By adopting the above technical solution, through the installation of the mesh frame and the first catalytic particles, the mesh frame provides an installation carrier for the first catalytic particles. Ozone and wastewater can enter the installation mesh frame through the mesh gaps and come into contact with the first catalytic particles inside the installation mesh frame, so that the first catalytic particles can catalyze ozone and wastewater.

[0025] Secondly, the decolorization reaction process for improving ozone utilization provided in this application adopts the following technical solution:

[0026] A decolorization reaction process for improving ozone utilization includes the following steps: S1, installation of catalyst layers, wherein catalyst layers are installed in the first reaction vessel and the second reaction vessel respectively; S2, introduction of wastewater, wherein wastewater is introduced into the first reaction vessel and the second reaction vessel respectively; S3, introduction of ozone, wherein ozone is introduced into the first reaction vessel through the air inlet pipe, so that the ozone reacts with the wastewater, and the gas generated in the first reaction vessel is led to the second reaction vessel through the connecting pipe.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. By using a connecting pipe and a second reactor, during the decolorization reaction, wastewater is introduced into the first reactor through the inlet, and ozone is simultaneously introduced into the first reactor through the inlet pipe, allowing the ozone and wastewater to mix and react. As ozone and wastewater are continuously added, they pass through a catalyst layer, which increases the reaction rate between ozone and wastewater. After the ozone and wastewater react, the mixed gas (ozone and oxygen) is introduced into the second reactor through the connecting pipe to decolorize the wastewater in the second reactor, greatly improving the utilization rate of ozone and saving energy.

[0029] 2. By setting up the first and second moving layers, under normal conditions, the two contact layers catalyze ozone and wastewater in sequence. As ozone and wastewater continue to catalyze, the contact layer that comes into contact with wastewater first is more likely to adsorb impurities and cause blockage. By driving the first and second moving layers of the two contact layers through the drive component, the first moving layers of the two contact layers are exchanged, thereby achieving a balance between the two contact layers and reducing the possibility of blockage of the contact layer that comes into contact with wastewater first, which would reduce the overall decolorization effect.

[0030] 3. By setting up the tapping component, when the first moving layer is exchanged between the two contact layers, the first moving layer is driven to slide along the normal direction of the first rack, so that the moving block slides in the moving groove. During the sliding process of the moving block, the tapping component taps the moving block, causing the first moving layer to vibrate, reducing the possibility of the first moving layer becoming blocked when the first moving layer catalyzes wastewater and ozone, and improving the catalytic effect of the first moving layer. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of Example 1;

[0032] Figure 2 This is a partial cross-sectional view of Embodiment 2 showing the two contact layers;

[0033] Figure 3 This is an exploded view of the drive component in Embodiment 2;

[0034] Figure 4 This is a partial cross-sectional view of Embodiment 2 illustrating the first moving layer;

[0035] Figure 5 This is a partial cross-sectional view of Embodiment 2 showing the sliding block and the return spring;

[0036] Figure 6 This is a partial cross-sectional view of the striking component in Example 3.

[0037] Explanation of reference numerals in the attached drawings: 1. First reactor; 11. Water inlet; 12. Air inlet pipe; 13. Connecting pipe; 14. Drain outlet; 15. Aerator head; 16. Support ring; 2. Second reactor; 21. Exhaust outlet; 3. Catalyst layer; 31. Contact layer; 32. Flow gap; 33. First moving layer; 331. Mounting mesh frame; 332. First catalyst particle; 333. Mesh cover; 34. Second moving layer; 35. Moving strip; 351 352. Sliding groove; 353. Sliding block; 354. Reset spring; 3555. Moving block; 355. Filter screen; 356. Second catalyst particle; 37. Mounting ring seat; 48. Moving groove; 49. Embedding groove; 40. Mounting sink; 51. Drive assembly; 52. Drive gear; 53. First rack; 54. Second rack; 6555. Drive component; 66. Beating component; 67. Guide block; 68. Guide surface; 69. Compression spring; 60. Beating rod. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail. Example 1

[0039] This application discloses a decolorization reaction system for improving ozone utilization.

[0040] Reference Figure 1 A decolorization reaction system for improving ozone utilization includes a first reaction vessel 1 and a second reaction vessel 2. In this embodiment, both the first reaction vessel 1 and the second reaction vessel 2 are provided with water inlets 11, which are connected to the interior of the first reaction vessel 1 or the interior of the second reaction vessel 2. The water inlet 11 of the first reaction vessel 1 is located at the top of the outer wall of the first reaction vessel 1, and the water inlet 11 of the second reaction vessel 2 is located at the top of the outer wall of the second reaction vessel 2.

[0041] Reference Figure 1 Both the first reactor 1 and the second reactor 2 are equipped with drain outlets 14, which are connected to the interior of the first reactor 1 or the interior of the second reactor 2. The drain outlet 14 of the first reactor 1 is located at the bottom of the outer wall of the first reactor 1, and the inlet 11 of the second reactor 2 is located at the bottom of the outer wall of the second reactor 2. The inlet 11 is used to introduce wastewater to be decolorized, and the drain outlet 14 is used to discharge the treated water after decolorization. That is, the wastewater is introduced from the top of the first reactor 1 or the top of the second reactor 2, and after the decolorization reaction, it is discharged from the top of the first reactor 1 or the bottom of the second reactor 2.

[0042] Reference Figure 1The top walls of the first reactor 1 and the second reactor 2 are each provided with an exhaust port 21, which is connected to the interior of the first reactor 1 or the interior of the second reactor 2. The first reactor 1 is connected to an air inlet pipe 12, which is used to introduce ozone into the first reactor 1 so that the ozone and wastewater can undergo a decolorization reaction. In this embodiment, the outlet end of the air inlet pipe 12 extends into the first reactor 1 and extends to the bottom of the first reactor 1. A connecting pipe 13 is connected between the first reactor 1 and the second reactor 2. The inlet end of the connecting pipe 13 is connected to the exhaust port 21 of the first reactor 1, and the outlet end of the connecting pipe 13 extends into the second reactor 2 and extends to the bottom of the second reactor 2. The first reactor 1 and the second reactor 2 are interconnected through the connecting pipe 13.

[0043] It should be noted that multiple aeration heads 15 are installed on the outer peripheral wall of the air inlet pipe 12 and the outer peripheral wall of the connecting pipe 13. The aeration heads 15 of the air inlet pipe 12 are located at the bottom of the first reactor 1, and the aeration heads 15 of the connecting pipe 13 are located at the bottom of the second reactor 2. The aeration heads 15 are set to face upwards for upward spraying (ozone). Ozone is sprayed outwards from bottom to top through the aeration heads 15, and sewage is introduced into the first reactor 1 or the second reactor 2 from top to bottom through the inlet 11, so that ozone and sewage are mixed and reacted in the first reactor 1 or the second reactor 2.

[0044] Reference Figure 1 Catalyst layer 3 is installed in both the first reactor 1 and the second reactor 2. The catalyst layer 3 in the first reactor 1 and the catalyst layer 3 in the second reactor 2 have the same structure. The following description takes the catalyst layer 3 in the first reactor 1 as an example. The structure of the catalyst layer 3 in the second reactor 2 can be obtained in the same way. The catalyst layer 3 is used to allow sewage and ozone to pass through for catalysis, accelerate the reaction rate between ozone and sewage, and adsorb impurities.

[0045] Reference Figure 1 A support ring 16 is fixedly installed on the inner wall of the first reactor 1. The support ring 16 has a rectangular ring structure, and the outer wall of the support ring 16 is fixedly connected to the inner wall of the first reactor 1. In this embodiment, the catalyst layer 3 includes a filter screen 37 and second catalyst particles 38. The filter screen 37 is installed on the top of the support ring 16, and the support ring 16 is supported by the filter screen 37. The filter screen 37 is located between the drain outlet 14 and the inlet 11. The filter screen 37 has filter mesh to allow ozone and sewage to pass through. The catalyst particles are placed on the upper surface of the filter screen 37. In this embodiment, the catalyst particles are activated carbon overloaded titanium dioxide.

[0046] The implementation principle of Embodiment 1 of this application is as follows: Sewage is introduced into the first reaction vessel 1 through the inlet 11, and ozone is introduced into the first reaction vessel 1 through the air inlet 12. The sewage passes through the catalyst layer 3 from top to bottom, and the ozone passes through the catalyst layer 3 from bottom to top, so that the ozone and sewage are mixed and reacted in the first reaction vessel 1. The catalyst particles can catalyze the ozone and sewage, accelerate the reaction rate between ozone and sewage, and adsorb impurities in the sewage. The inlet 11 is set above the outlet 14. When the sewage enters the first reaction vessel 1 through the inlet 11, the COD concentration at the bottom of the sewage is greater than the COD concentration at the top of the sewage. The ozone is introduced into the first reaction vessel 1 from bottom to top. The ozone comes into contact with the bottom of the sewage first and reacts, thereby improving the reaction effect between ozone and sewage.

[0047] The first reactor 1 is connected to the second reactor 2 via a connecting pipe 13. After ozone reacts with sewage, it forms treated water (decolorized sewage) and oxygen. The treated water is discharged out through the drain outlet 14. When the reaction between ozone and sewage is insufficient, the oxygen contains a large amount of ozone, forming a mixed gas. The mixed gas from the first reactor 1 is introduced into the second reactor 2 through the connecting pipe 13 to decolorize the sewage in the second reactor 2, which greatly improves the utilization rate of ozone and saves energy. Example 2

[0048] This application discloses a decolorization reaction system for improving ozone utilization.

[0049] Reference Figure 2 , Figure 3 The difference between the decolorization reaction system for improving ozone utilization disclosed in this application and Example 1 is that:

[0050] In this embodiment, mounting ring seats 4 are installed in both the first reactor 1 and the second reactor 2. The mounting ring seats 4 are rectangular ring structures and can be detachably installed in the first reactor 1 or the second reactor 2 by means of bolts (the bolt connection is not shown in the figure). The catalyst layer 3 in the first reactor 1 and the catalyst layer 3 in the second reactor 2 have the same structure. The following description takes the catalyst layer 3 in the first reactor 1 as an example. The structure of the catalyst layer 3 in the second reactor 2 can be obtained in the same way.

[0051] Reference Figure 2 , Figure 3 The catalyst layer 3 includes two contact layers 31, both of which are installed inside the mounting ring 4. The two contact layers 31 are spaced apart along the height direction of the mounting ring 4, and a flow gap 32 is formed between the two contact layers 31 for ozone and wastewater to flow through. This design divides the catalyst layer 3 into two parts, forming two spaced contact layers 31, which increases the contact area between the catalyst layer 3 and the wastewater, thereby improving the catalytic effect.

[0052] Reference Figure 2 , Figure 3 Each contact layer 31 includes a first moving layer 33 and a second moving layer 34. The first moving layer 33 and the second moving layer 34 are arranged sequentially in the horizontal direction. The first moving layer 33 and the second moving layer 34 of each contact layer 31 are normally in contact with each other. The structure of the first moving layer 33 is the same as that of the second moving layer 34. The following description uses the structure of the first moving layer 33 as an example. The second moving layer 34 can be obtained in the same way.

[0053] Reference Figure 2 , Figure 4 The first movable layer 33 includes a mounting frame 331 and first catalyst particles 332. The mounting frame 331 is a rectangular hollow mesh structure. A mesh cover 333 for opening and closing the mounting frame 331 is installed on one side of the mounting frame 331. The mesh cover 333 is detachably installed on the mounting frame 331 by means of bolts (the bolt connection is not shown in the figure). Both the mounting frame 331 and the mesh cover 333 have filter mesh gaps. The first catalyst particles 332 are filled in the mounting frame 331. The first catalyst particles 332 are activated carbon overloaded titanium dioxide.

[0054] Reference Figure 2 , Figure 3 , Figure 5 The inner wall of the mounting ring seat 4 is provided with a mounting groove 43, and the inner wall of the mounting groove 43 is provided with a moving groove 41. The moving groove 41 is rectangular and annular. Each first moving layer 33 has a moving block 36 fixedly installed on the side wall near the moving groove 41. The moving block 36 extends into the mounting groove 43 and slides on the moving groove 41. The first moving layer 33 is slidably installed on the moving groove 41 by the moving block 36 and can slide along the height direction. Each second moving layer 34 has a moving strip 35 fixedly installed on the side wall near the moving groove 41. The movable strip 35 extends into the mounting groove 43 and slides onto the movable groove 41. The second movable layer 34 is slidably mounted onto the movable groove 41 via the movable strip 35 and can slide horizontally. It should be noted that the first movable layer 33 and the second movable layer 34 in the two contact layers 31 are staggered. That is, for the upper contact layer 31, the first movable layer 33 is directly below the second movable layer 34 in the other contact layer 31, and the second movable layer 34 is directly below the first movable layer 33 in the other contact layer 31.

[0055] Reference Figure 2 , Figure 3 , Figure 5The mounting ring seat 4 is equipped with a drive assembly 5. The drive assembly 5 is used to drive all the first moving layers 33 and all the second moving layers 34 to slide along the moving groove 41 to exchange the first moving layers 33 in the two contact layers 31. The drive assembly 5 includes a drive gear 51, a first rack 52, a second rack 53 and a drive member 54. The drive gear 51 is rotatably mounted on the inner wall of the mounting groove 43. The two ends of the first rack 52 extend along the height direction. There are two first racks 52. The two first racks 52 are respectively set to correspond to the first moving layers 33 in the two contact layers 31. Each first rack 52 is fixedly mounted on the moving block 36 of the corresponding first moving layer 33. Both first racks 52 mesh with the drive gear 51 for transmission, so that when the drive gear 51 drives the first rack 52 to slide, the first rack 52 can drive the corresponding first moving layer 33 to slide along the height direction.

[0056] Reference Figure 3 , Figure 5 The two ends of the second rack 53 extend horizontally, and there are two second racks 53. The two second racks 53 are respectively arranged corresponding to the second moving layers 34 in the two contact layers 31. Each second rack 53 is arranged on the moving strip 35 of the corresponding second moving layer 34. Both second racks 53 mesh with the drive gear 51 for transmission, so that when the drive gear 51 drives the second rack 53 to slide, it can drive the second moving layer 34 to slide horizontally. It should be noted that the first rack 52 and the second rack 53 are staggered along the axial direction of the drive gear 51 to avoid mutual interference when the first rack 52 and the second rack 53 slide.

[0057] Reference Figure 3 , Figure 5 The driving component 54 is disposed on the driving gear 51 to drive the driving gear 51 to rotate. In this embodiment, the driving component 54 is a driving motor. The driving motor is fixedly installed on the outer wall of the first reaction vessel 1. The output shaft of the driving motor passes through the first reaction vessel 1 and the mounting ring seat 4 in sequence and is coaxially connected to the driving gear 51.

[0058] Reference Figure 3 , Figure 5 Each second moving layer 34 has a sliding groove 351 on the side wall of the moving bar 35 near the drive gear 51. The two ends of the sliding groove 351 extend along the length of the moving bar 35. A sliding block 352 is slidably installed in the sliding groove 351. A return spring 353 is installed in the sliding groove 351. One end of the return spring 353 is fixedly connected to the inner wall of the sliding groove 351, and the other end is fixedly connected to the sliding block 352. Normally, the return spring 353 causes the sliding block 352 to move away from the first moving layer 33.

[0059] Reference Figure 2 , Figure 3 , Figure 5 A particularly important point in this embodiment is that the second rack 53 is fixedly connected to the sliding block 352 of the corresponding moving bar 35. The second rack 53 is slidably mounted on the moving bar 35 of the second moving layer 34 through the sliding block 352. When the first moving layer 33 slides along the length direction of the first rack 52 and the first moving layer 33 has not detached from the second moving layer 34 (the sidewalls of the first moving layer 33 and the second moving layer 34 that are close to each other are still in a state of mutual contact), the sliding block 352 slides along the length direction of the sliding groove 351 (at this time, the second moving layer 34 remains stationary). The sliding block 352 compresses the return spring 353 and makes the return spring 353 have elastic force.

[0060] When the first moving layer 33 slides along the length direction of the first rack 52 and the first moving layer 33 disengages from the second moving layer 34 (i.e., the amount of movement of the first moving layer 33 in the height direction is greater than the thickness of the second moving layer 34), the return spring 353 restores its deformation and pushes the second moving layer 34 toward the initial position of the first moving layer 33 (forming an oscillation); the drive gear 51 continues to rotate, the second rack 53 drives the second moving layer 34 to the initial position of the first moving layer 33, and the first rack 52 drives the first moving layer 33 to the initial position of the second moving layer 34 in another contact layer 31.

[0061] The implementation principle of Embodiment 2 of this application is as follows: the installation trough 43 provides installation clearance space for the drive gear 51, the first rack 52, and the second rack 53; the moving groove 41 allows all the first moving layers 33 and all the second moving layers 34 to slide and install within the installation ring seat 4; during the process of ozone passing through the two contact layers 31 from bottom to top and sewage passing through the two contact layers 31 from top to bottom, the upper contact layer 31 contacts the sewage first and adsorbs the impurities in the sewage, and the upper contact layer 31 is more prone to... It is prone to clogging due to excessive adsorption of impurities; the drive gear 51 drives the two first racks 52 and the two second racks 53 to rotate synchronously. The two first racks 52 can respectively drive the corresponding first moving layer 33 to slide along the length direction of the first rack 52. The first moving layer 33 and the second moving layer 34 in the contact layer 31 are normally in contact with each other. The first moving layer 33 limits the second moving layer 34, so that the second moving layer 34 cannot move horizontally and remains stationary. At this time, the sliding block 352 slides along the sliding groove 351 and squeezes the return spring 353.

[0062] When the movement of the first moving layer 33 is greater than the thickness of the second moving layer 34, the first moving layer 33 and the second moving layer 34 separate from each other. After the second moving layer 34 separates from the first moving layer 33, it moves toward the initial position of the first moving layer 33 under the action of the reset spring 353 and can form a reciprocating oscillation. After the oscillation, the catalytic particles in the second moving layer 34 move and change position, so that the catalytic particles are in full contact with the sewage, thereby improving the catalytic effect and adsorption effect of the catalytic particles.

[0063] After the first moving layer 33 and the second moving layer 34 separate from each other, the drive gear 51 continues to rotate. Under the action of the first rack 52 and the second rack 53, the drive gear 51 can transfer the first moving layer 33 to the initial position of the second moving layer 34 in the other contact layer 31, and transfer the second moving layer 34 to the initial position of the first moving layer 33. This causes the two first moving layers 33 and the two second moving layers 34 to form a circular movement, so as to exchange the first moving layer 33 in the two contact layers 31. This can achieve a balance between the two contact layers 31, reduce the possibility of the upper contact layer 31 becoming blocked, and thus reduce the overall decolorization effect. Example 3

[0064] This application discloses a decolorization reaction system for improving ozone utilization.

[0065] Reference Figure 6 The difference between the decolorization reaction system for improving ozone utilization disclosed in this application and Example 2 is that:

[0066] In this embodiment, the bottom wall of the moving groove 41 is provided with a plurality of embedding grooves 42, and all embedding grooves 42 are arranged at intervals along the height direction; each embedding groove 42 is equipped with a striking member 6 for striking the first moving layer 33. When the first moving layer 33 slides along the length direction of the first rack 52 and the first moving layer 33 is separated from the second moving layer 34, the striking member 6 strikes the moving block 36 of the first moving layer 33 to make the first moving layer 33 vibrate.

[0067] Reference Figure 6The striking component 6 includes a guide block 61, a compression spring 62, and a striking rod 63. The guide block 61 is slidably installed in the recess 42. The compression spring 62 is installed between the recess 42 and the guide block 61. One end of the compression spring 62 is fixedly connected to the inner wall of the recess 42, and the other end is fixedly connected to the guide block 61. In normal operation, the compression spring 62 causes the guide block 61 to be partially exposed to the moving groove 41. The side wall of the guide block 61 away from the compression spring 62 has two guide surfaces 611. The guide surfaces 611 are used for the moving block 36 to abut against, so as to push the guide block 61 into the recess 42. The striking rod 63 is fixedly connected to the guide block 61. When the moving block 36 drives the guide block 61 into the recess 42, and the moving block 36 continues to move so that the moving block 36 is disengaged from the guide block 61, the compression spring 62 drives the striking rod 63 to strike the moving block 36.

[0068] The implementation principle of Embodiment 3 of this application is as follows: During the process of the drive gear 51 driving the first rack 52 to move, the moving block 36 slides along the height direction. The moving block 36 can push the guide block 61 into the embedded groove 42 through the guide surface 611, so that the compression spring 62 is deformed under pressure and has elastic force, and continues to drive the moving block 36 to slide along the height direction. When the moving block 36 is separated from the guide block 61, the guide block 61 is pushed outward under the elastic force of the compression spring 62, thereby driving the beater 63 to strike the moving block 36, so that the first moving layer 33 vibrates. After the catalytic particles in the first moving layer 33 vibrate, they move and change position, so that the catalytic particles are in full contact with the sewage, thereby improving the catalytic effect and adsorption effect of the catalytic particles. By setting multiple sets of beaters 6, the vibration effect of the first moving layer 33 is improved. Example 4

[0069] This application also discloses a decolorization reaction process to improve ozone utilization.

[0070] A decolorization reaction process for improving ozone utilization specifically includes the following steps:

[0071] S1. Installation of catalyst layer 3: Catalyst layer 3 is installed in the first reactor 1 and the second reactor 2 respectively, and the catalyst layer 3 is located between the drain outlet 14 and the inlet 11 to allow ozone and sewage to pass through.

[0072] S2. Wastewater introduction: Wastewater to be decolorized is introduced into the first reactor 1 and the second reactor 2 through the inlet 11. When introducing wastewater, it is necessary to maintain a uniform speed and introduce it slowly to avoid insufficient decolorization reaction due to excessive speed.

[0073] S3. Ozone is introduced into the first reactor 1 through the air inlet pipe 12, so that the ozone reacts with the wastewater in the first reactor 1. The resulting mixed gas (oxygen and ozone) is led to the second reactor 2 through the connecting pipe 13 for secondary utilization, thereby improving the utilization rate of ozone.

[0074] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A decolorization reaction system for improving ozone utilization, characterized in that: The reactor includes a first reactor (1) and a second reactor (2), both of which are provided with drain outlets (14). The first reactor (1) is connected to an inlet pipe (12) for introducing ozone, and the second reactor (2) is provided with an exhaust outlet (21). A connecting pipe (13) connects the first reactor (1) and the second reactor (2), with the inlet end of the connecting pipe (13) connected to the first reactor (1) and the outlet end of the connecting pipe (13) connected to the second reactor (2). A catalyst layer (3) is provided in both the first reactor (1) and the second reactor (2), and the catalyst layer (3) is used to allow wastewater and ozone to pass through for catalysis. Both the reactor (1) and the second reactor (2) are provided with mounting ring seats (4). The catalyst layer (3) includes two contact layers (31) installed in the mounting ring seat (4). The two contact layers (31) are spaced apart along the height direction of the mounting ring seat (4), and a flow gap (32) is formed between the two contact layers (31). The inner wall of the mounting ring seat (4) is provided with a moving groove (41). The contact layer (31) includes a first moving layer (33) and a second moving layer (34). The first moving layer (33) and the second moving layer (34) are both slidably installed in the moving groove (41). The mounting ring seat (4) is provided with a driving assembly (5). The driving assembly (5) is used to drive the first moving layer (33) 3) The second moving layer (34) slides along the moving groove (41) to exchange the first moving layer (33) of the two contact layers (31); the driving assembly (5) includes a driving gear (51), a first rack (52), a second rack (53) and a driving member (54). The driving gear (51) is rotatably mounted on the inner wall of the mounting ring seat (4). There are two first racks (52) and they are arranged corresponding to the two contact layers (31). Each first rack (52) is arranged on the first moving layer (33) of the corresponding contact layer (31). There are two second racks (53) and they are arranged corresponding to the two contact layers (31). Each second rack (53) is arranged on the first moving layer (33) of the corresponding contact layer (31). The second moving layer (34) has all first racks (52) and all second racks (53) meshing with a drive gear (51) for transmission; the first racks (52) are vertically arranged to drive the first moving layer (33) to slide along the height direction, and the second racks (53) are horizontally arranged to drive the second moving layer (34) to slide along the horizontal direction; the drive member (54) is disposed on the drive gear (51) to drive the drive gear (51) to rotate; a moving block (36) is fixed to the side wall of the first moving layer (33) near the moving groove (41), and the moving block (36) is slidably installed in the moving groove (41), and the first moving layer (33) is slidably installed in the moving groove (41) through the moving block (36);The bottom wall of the movable groove (41) is provided with multiple embedding grooves (42), and each embedding groove (42) is provided with a striking element (6). When the first movable layer (33) slides along the length direction of the first rack (52), the striking element (6) strikes the movable block (36) to cause the first movable layer (33) to vibrate.

2. The decolorization reaction system according to claim 1, characterized in that: The first movable layer (33) and the second movable layer (34) of the contact layer (31) are normally in contact with each other. The second movable layer (34) has a movable strip (35) on its side wall near the movable groove (41). The movable strip (35) is slidably installed in the movable groove (41). The second movable layer (34) is slidably installed in the movable groove (41) through the movable strip (35). The movable strip (35) has a sliding groove (351) on its side wall near the drive gear (51). A sliding block (352) is slidably installed in the sliding groove (351). The second rack (53) is connected to the sliding block (352). The second rack (53) is slidably mounted on the second moving layer (34) via a sliding block (352); when the first moving layer (33) slides along the length direction of the first rack (52) and the first moving layer (33) is not detached from the second moving layer (34), the sliding block (352) slides along the length direction of the sliding groove (351); when the first moving layer (33) slides along the length direction of the first rack (52) and the first moving layer (33) is detached from the second moving layer (34), the second rack (53) can drive the second moving layer (34) to move to the initial position of the first moving layer (33).

3. The decolorization reaction system according to claim 2, characterized in that: A return spring (353) is provided in the sliding groove (351). One end of the return spring (353) is connected to the inner wall of the sliding groove (351), and the other end is connected to the sliding block (352). When the first moving layer (33) slides along the length direction of the first rack (52) and the first moving layer (33) does not detach from the second moving layer (34), the return spring (353) contracts and deforms and has elastic force.

4. The decolorization reaction system according to claim 1, characterized in that: The striking component (6) includes a guide block (61), a compression spring (62), and a striking rod (63). The guide block (61) is slidably installed in the recess (42). The compression spring (62) is installed between the recess (42) and the guide block (61). The compression spring (62) normally causes the guide block (61) to partially move to the moving groove (41). The guide block (61) has a guide surface (611), which is used for the moving block (36) to abut against so that the guide block (61) moves into the recess (42). The striking rod (63) is connected to the guide block (61). When the moving block (36) drives the guide block (61) to move into the recess (42) and continues to move the moving block (36) so that the moving block (36) is disengaged from the guide block (61), the compression spring (62) pushes the striking rod (63) to strike the moving block (36).

5. The decolorization reaction system according to claim 1, characterized in that: The first movable layer (33) includes a mounting frame (331) and a first catalyst particle (332). The mounting frame (331) is slidably mounted in the mounting ring seat (4), and the first catalyst particle (332) is filled in the mounting frame (331).

6. A decolorization reaction process for improving ozone utilization, based on the decolorization reaction system for improving ozone utilization as described in any one of claims 1-5, comprising the following steps: S1. Installation of catalyst layer (3): The catalyst layer (3) is installed in the first reactor (1) and the second reactor (2) respectively. S2. Introduction of wastewater: Wastewater is introduced into the first reactor (1) and the second reactor (2) respectively. S3. Ozone is introduced into the first reactor (1) through the air inlet pipe (12) so that the ozone reacts with the sewage. The gas formed in the first reactor (1) is led to the second reactor (2) through the connecting pipe (13).

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