An ozone oxidation reactor

Abstract

The present invention discloses an ozone oxidation reactor, which belongs to the technical field of sewage treatment. The reactor comprises a reactor main body, wherein a catalyst is contained inside the reactor main body, and a central sleeve and a disturbance component for lifting and transporting the catalyst upward along the central sleeve are provided inside the reactor main body. A slow-down component is also provided inside the reactor main body, and the slow-down component can slow down the falling speed of the catalyst while allowing sewage and ozone to pass freely. The slow-down component comprises a grating disc 1, which is connected to the central sleeve. The surface of the grating disc 1 is evenly provided with grating holes 1 with an aperture larger than that of the catalyst particles. The present invention lifts the catalyst upward through the central sleeve, so that the catalyst diffuses from the upper end of the central sleeve to the surrounding areas and evenly falls into the reactor main body. The evenly falling catalyst can fully contact with the sewage and ozone, providing good conditions for the ozone oxidation reaction, thereby improving the reaction efficiency.

Description

Technical Field

[0001] The invention relates to an ozone oxidation reactor and belongs to the technical field of sewage treatment. Background Art

[0002] Traditional ozone oxidation reactors usually take the approach of directly filling the catalyst into the reactor. However, this method has some problems in practical applications. Due to the flow characteristics of sewage in the reactor and the solubility characteristics of ozone, the solubility of ozone is relatively low at the bottom of the reactor, which means that the catalyst in this area has limited contact opportunities with ozone, and therefore its catalytic effect is also limited. Relatively speaking, in the middle and upper part of the reactor, due to the improvement of water flow and ozone distribution, the solubility of ozone is higher, which is an ideal catalytic reaction area.

[0003] Unfortunately, the traditional catalyst loading method causes most of the catalyst to be at the bottom of the reactor where the ozone solubility is low, which leads to low catalyst utilization and unsatisfactory catalytic effect. In order to solve this problem, an ozone oxidation reactor is proposed.

[0004] This reactor optimizes catalyst distribution and flow conditions, allowing the catalyst to be more evenly distributed throughout the reactor, particularly in the middle and upper regions where ozone solubility is higher. This approach aims to significantly increase catalyst utilization, enhance the catalytic effect, and ultimately improve the efficiency of the entire wastewater treatment process. Summary of the Invention

[0005] The object of the present invention is to provide an ozone oxidation reactor to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: an ozone oxidation reactor, comprising a reactor body, an upper end cover of the reactor body is provided with a closing cover, the closing cover provided on the upper end cover ensures the sealing of the reactor body during operation, prevents the leakage of gases such as ozone, and also avoids the entry of external impurities, thereby ensuring the purity of the reaction, a feed pipe for introducing sewage and ozone into the reactor body is provided at the bottom of the reactor body, a mixing pump is connected to the feed pipe, and the mixing pump is further provided with pipelines for respectively guiding ozone and sewage, the two pipelines simultaneously guide the ozone and sewage to the mixing pump, after mixing in the mixing pump, the feed pipe guides the mixed ozone and sewage into the reactor body, a catalyst is placed inside the reactor body, and a central sleeve and a disturbance component for lifting and transporting the catalyst upward along the central sleeve are provided inside the reactor body;

[0007] A slow-down assembly is also provided inside the reactor body, which can slow down the falling speed of the catalyst while allowing sewage and ozone to pass freely. The slow-down assembly includes a grid plate 1, which is connected to the center sleeve. The surface of the grid plate 1 is evenly provided with grid holes 1 with a pore size larger than the particle size of the catalyst particles.

[0008] Preferably, the disturbance component includes a rod-type auger blade, which is rotatably connected to the inside of the center sleeve as a component for lifting the catalyst. When the rod-type auger blade rotates, the catalyst in the reactor body can be transported into the center sleeve and lifted along the center sleeve, thereby effectively lifting and transporting the catalyst. The upper end of the rod-type auger blade is connected to the power output end of the driving member through a coupling. The driving member can be a motor or other device that can provide rotational power. For example: when the driving member is a motor device, the motor is fixedly mounted on the closing cover, and the output shaft of the motor passes downward through the closing cover and is connected to the upper end of the rod-type auger blade through the coupling. The lower end of the rod-type auger blade passes through the center sleeve and extends to the bottom of the reactor body, which can ensure that the rod-type auger blade can directly contact the catalyst at the bottom of the reactor body, thereby effectively lifting the catalyst.

[0009] Preferably, the grid disc 1 is rotatably connected to the central sleeve, and a rotating frame is provided between the upper end of the auger blade and the grid disc 1 to drive the grid disc 1 and the auger blade to be connected as one.

[0010] Preferably, there is an annular gap between the outer contour of the grid disc 1 and the inner wall of the reactor body, and the upper surface of the grid disc 1 gradually tilts downward from the inside to the outside. The descent assembly also includes a grid disc 2, which is installed in the reactor body through a bracket. The upper part of the bracket is a disc part, and the disc part is pressed and fixed on the top of the reactor body by closing the closing cover. A plurality of connecting rods are provided on the disc part, and the connecting rods connect the grid disc 2. In addition, in order to support the rotating frame, the rotating frame is rotatably connected to the middle position of the disc part. When the closing cover is opened, the grid disc 1, the grid disc 2, the rotating frame and the bracket can be taken out from the reactor body. The grid disc 2 is located below the grid disc 1, and the surface of the grid disc 2 is evenly provided with grid holes 2 with an aperture equal to that of the grid hole 1. There is also an annular gap between the inner contour of the grid disc 2 and the outer wall of the center sleeve, and the upper surface of the grid disc 2 tilts downward from the outside to the inside.

[0011] Preferably, there are multiple grating discs 1 and 2, and the multiple grating discs 1 rotate synchronously. The multiple grating discs 2 are all installed on the bracket. The number and position of the multiple grating discs 2 correspond one to one. The continuous action of the multiple grating discs 1 and 2 significantly slows down the falling speed of the catalyst, so that it is more evenly distributed inside the reactor body.

[0012] Preferably, a brush is fixedly connected to the lower surface of the first grid plate, and the lower end of the brush contacts the upper surface of the second grid plate.

[0013] Preferably, the outer contour of the first grid plate is in sliding contact with the inner wall of the reactor body, and the slow-down assembly further includes a float ball suspended below the first grid plate.

[0014] Preferably, the diameter of the float ball is larger than the diameter of the first grid hole.

[0015] Compared with existing technologies:

[0016] 1. The present invention lifts the catalyst upward through the central sleeve, so that the catalyst diffuses from the upper end of the central sleeve to the surrounding areas and evenly falls into the reactor body. The evenly falling catalyst can fully contact with sewage and ozone, providing good conditions for ozone oxidation reaction, thereby improving reaction efficiency.

[0017] 2. The present invention adds multiple grid plates 1 and 2. During the catalyst falling process, the catalyst falls on grid plate 1 and can be retained on each grid plate 1 and 2 to prevent the catalyst from falling directly, thereby achieving a slow-descent effect of the catalyst. When sewage and ozone move upward freely, this slow-descent effect of the catalyst helps the catalyst to fully contact with sewage and ozone, further improving the reaction efficiency.

[0018] 3. The present invention can further improve the dispersion uniformity and reaction efficiency of the catalyst in the reactor body through the design of a sliding contact grid plate and the optimization of the floating ball slow-down component. This design not only improves the efficiency of wastewater treatment, but also reduces the waste of catalyst, which is of great significance for improving the performance of the entire reaction system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a structural cross-sectional view of the present invention.

[0021] Figure 3 For the present invention Figure 2 Magnified view of part A.

[0022] Figure 4 It is a cross-sectional exploded view of the reactor body, the auger blades and the grid plate of the present invention.

[0023] Figure 5 This is an exploded view of the disturbance assembly, rotating frame and grid disc of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the rotating frame and the grid disc of the present invention.

[0025] Figure 7 It is a cross-sectional exploded view of the reactor body, grid plate 1 and grid plate 2 of the present invention.

[0026] Figure 8 It is a cross-sectional view of the reactor body, central sleeve, grid plate 1 and float of the present invention.

[0027] In the figure: 1. Reactor body, 101. Closing cover, 2. Disturbance assembly, 201. Rod auger blade, 202. Driving member, 3. Center sleeve, 301. Mounting frame, 4. Descending assembly, 401. Grid plate 1, 402. Grid hole 1, 403. Grid plate 2, 404. Grid hole 2, 405. Baffle, 406. Float, 5. Coupling, 6. Rotating frame, 7. Feed pipe, 8. Mixing pump, 9. Bracket, 10. Brush, 11. Ozone exhaust destroyer, 12. Liquid outlet pipe, 13. Drain pipe, 14. Liquid outlet weir. DETAILED DESCRIPTION

[0028] The present invention is described below with specific examples, but is not intended to be limiting of the invention.

[0029] Example 1

[0030] like Figure 1-Figure 7 As shown, in this embodiment, an ozone oxidation reactor is provided, including a reactor body 1, and the upper end cover of the reactor body 1 is provided with a closing cover 101. The closing cover 101 provided on the upper end cover ensures the sealing of the reactor body 1 during operation, prevents the leakage of gases such as ozone, and also avoids the entry of external impurities, thereby ensuring the purity of the reaction. A feed pipe 7 for introducing sewage and ozone into the reactor body 1 is provided at the bottom of the reactor body 1, and a mixing pump 8 is connected to the feed pipe 7. The mixing pump 8 is also provided with pipelines for guiding ozone and sewage respectively. The two pipelines guide ozone and sewage to the mixing pump 8 at the same time. After mixing in the mixing pump 8, the feed pipe 7 guides the mixed ozone and sewage to the mixing pump 8. The flow is directed into the reactor body 1, the interior of the reactor body 1 contains a catalyst, and the interior of the reactor body 1 is provided with a central sleeve 3 and a disturbance assembly 2 for lifting and transporting the catalyst upward along the central sleeve 3. The central sleeve 3 is vertically mounted at the center of the reactor body 1 through a mounting frame 301, and the lower end of the central sleeve 3 is inserted into the catalyst. The central sleeve 3 is coaxially arranged with the reactor body 1, and the upper and lower ends of the central sleeve 3 are open, allowing the catalyst to pass freely, thereby ensuring the circulation of the catalyst inside the reactor body 1. After the catalyst is lifted and filled into the central sleeve 3, some catalyst is still retained in the reactor body 1 to ensure the continuity of the catalyst circulation;

[0031] The reactor body 1 is further provided with a descending assembly 4, which can slow down the falling speed of the catalyst while allowing the sewage and ozone to pass freely. The descending assembly 4 includes a grid plate 401, which is sleeved on the central sleeve 3. The surface of the grid plate 401 is uniformly provided with grid holes 402 with a pore size larger than the catalyst particle size.

[0032] The descent control assembly 4 is mainly composed of a grid plate 401, which is sleeved on the central sleeve 3. This layout allows the grid plate 401 to be located on the catalyst's falling path, effectively slowing down the catalyst's falling speed.

[0033] The apertures 402 uniformly formed on the surface of the grid plate 401 have apertures larger than the catalyst particles. During the catalyst's descent, the catalyst falls onto the grid plate 401 and is retained there. Only after the catalyst rolls down from the grid plate 401 onto the grid apertures 402 can it begin to fall again. This prevents most of the catalyst (a very small portion of the catalyst falls through the grid apertures 402) from falling directly, thereby achieving a slow-descent effect for the catalyst. This slow-descent effect facilitates full contact between the catalyst, the sewage, and the ozone as they freely ascend, further improving reaction efficiency.

[0034] In addition, a plurality of baffles 405 are evenly distributed on the grid plate 1 401. The arrangement of the baffles 405 can prevent the catalyst from being excessively concentrated and improve the even distribution of the catalyst.

[0035] like Figure 2 、 Figure 4 As shown, in order to effectively lift and transport the catalyst in the reactor body 1 from the central sleeve 3, the disturbance component 2 includes a rod auger blade 201. The rod auger blade 201 is rotatably connected to the inside of the central sleeve 3 as a component for lifting the catalyst. When the rod auger blade 201 rotates, the catalyst in the reactor body 1 can be transported into the central sleeve 3 and lifted along the central sleeve 3, thereby effectively lifting and transporting the catalyst. The upper end of the rod auger blade 201 is connected to the power output end of the driving member 202 through the coupling 5. The driving member 202 can be a motor or other device that can provide rotational power. For example, when the driving member 202 is a motor device, the motor is fixedly mounted on the closing cover 101, and the output shaft of the motor passes downward through the closing cover 101 and is connected to the upper end of the rod auger blade 201 through the coupling. The lower end of the rod auger blade 201 passes through the central sleeve 3 and extends to the bottom of the reactor body 1, which can ensure that the rod auger blade 201 can directly contact the catalyst at the bottom of the reactor body 1, thereby achieving effective lifting of the catalyst.

[0036] When the driving member 202 is started, it drives the auger blade 201 to rotate inside the central sleeve 3 through the coupling. Since the lower end of the auger blade 201 extends to the bottom of the reactor body 1, when the auger blade 201 rotates, the catalyst at the bottom of the reactor body 1 can be lifted into the center sleeve 3. As the auger blade 201 rotates and rises, the catalyst is transported to the upper part of the center sleeve 3.

[0037] When the catalyst is lifted to the upper part of the center sleeve 3, due to the rotation of the auger blades 201 and the opening design of the center sleeve 3, the catalyst will diffuse from the center position to the surroundings and fall evenly into the reactor body 1. The evenly falling catalyst can fully contact with the sewage and ozone, providing good conditions for the ozone oxidation reaction, thereby improving the reaction efficiency.

[0038] like Figure 2 、 Figure 4 as well as Figure 5 As shown, in order to prevent the catalyst from accumulating on the grid disc 401, the grid disc 401 is rotatably connected to the center sleeve 3, and a rotating frame 6 is provided between the upper end of the rod auger blade 201 and the grid disc 401 to drive the grid disc 401 and the rod auger blade 201 to be connected as a whole, the lower end of the rotating frame 6 is fixed on the grid disc 401, the rod auger blade 201 is connected to the upper center position of the rotating frame 6, and the rod auger blade 201 and the rotating frame 6 are connected in the form of a spline, so that when the rod auger blade 201 rotates, the rotating frame 6 can drive the grid disc 401 to rotate synchronously, and during the rotation of the grid disc 401, the catalyst on the grid disc 401 moves centrifugally, and when the catalyst moves to the position of the grid hole 402, it can fall from the grid hole 402, so that the catalyst stays on the grid disc 401 for a period of time and then falls, thereby preventing the catalyst from accumulating on the grid disc 401;

[0039] In addition, the speed of the driving member 202 driving the auger blade 201 and the grid plate 401 should not be too fast to avoid rapid rotation and throwing all the catalyst to the edge of the inner cavity of the reactor body 1;

[0040] In addition, an ozone exhaust destroyer 11 is provided on the closing cover 101. The ozone in the reactor body 1 is collected and enters the ozone exhaust destroyer 11 for treatment and then discharged. A liquid outlet weir 14 is provided at the upper end of the reactor body 1. A liquid outlet pipe 12 is provided on the liquid outlet weir 14 to discharge the treated sewage in the reactor body 1. A sewage pipe 13 is provided at the lower end of the reactor body 1.

[0041] Example 2

[0042] like Figure 2-Figure 7As shown, based on Example 1, in order to slow down the falling speed of the catalyst and thus make the catalyst more evenly distributed inside the reactor body 1, an annular gap is provided between the outer contour of the grid plate 1 401 and the inner wall of the reactor body 1, and the upper surface of the grid plate 1 401 gradually tilts downward from the inside to the outside. The descending assembly 4 also includes a grid plate 2 403, which is installed in the reactor body 1 through a bracket 9. The upper part of the bracket 9 is a disc portion, and the disc portion is pressed and fixed by closing the closing cover 101. Above the reactor body 1, a plurality of connecting rods are provided on the disc portion, which connect the grid plate 2 403. In addition, in order to support the rotating frame 6, the rotating frame 6 is rotatably connected to the middle position of the disc portion. When the closing cover 101 is opened, the grid plate 1 401, the grid plate 2 403, the rotating frame 6 and the bracket 9 can be taken out of the reactor body 1. The grid plate 2 403 is located below the grid plate 1 401. The surface of the grid plate 2 403 is evenly opened with grid holes 2 404 with an aperture equal to that of the grid hole 1 402. There is also an annular gap between the inner contour of 403 and the outer wall of the central sleeve 3. The upper surface of the grid disk 2 403 is tilted downward from the outside to the inside. After the catalyst falls on the grid disk 1 401, due to the rotation of the grid disk 1 401 and the inclined setting of the grid disk 1 401, the catalyst can move toward the outer contour of the grid disk 1 401. During the movement, part of the catalyst falls from the grid hole 1 402, and the other part of the catalyst falls from the outer contour position of the grid disk 1 401. Finally, the catalyst on the grid disk 1 401 falls on the grid disk 2. On 403, due to the disturbance of the liquid caused by the rotation of the grid disk 1 401 and the inclined setting of the grid disk 2 403, the catalyst moves on the grid disk 2 403 toward the inner contour of the grid disk 2 403. During the movement of the catalyst, a part of the catalyst falls from the grid hole 2 404, and the other part of the catalyst falls from the inner contour position of the grid disk 2 403. With the cooperation of the grid disk 1 401 and the grid disk 2 403, the falling speed of the catalyst is slowed down, so that the catalyst can be distributed more evenly inside the reactor body 1.

[0043] like Figure 2 、 Figure 4 As shown, in order to further slow down the falling speed of the catalyst, there are multiple grating discs 1 401 and 2 grating discs 403, and the multiple grating discs 1 401 rotate synchronously. The multiple grating discs 2 403 are all installed on the bracket 9. The number and position of the multiple grating discs 2 403 correspond one to one with the multiple grating discs 1 401. The continuous action of the multiple grating discs 1 401 and 2 grating discs 403 significantly slows down the falling speed of the catalyst, so that the catalyst is more evenly distributed inside the reactor body 1.

[0044] like Figure 6As shown, in order to facilitate the movement of the catalyst on the second grid plate 403 and prevent the catalyst from accumulating on the second grid plate 403, a brush 10 is fixedly connected to the lower surface of the first grid plate 401, and the lower end of the brush 10 is in contact with the upper surface of the second grid plate 403;

[0045] When the first grid disc 401 rotates, the brush 10 rotates accordingly and lightly sweeps the surface of the second grid disc 403. This action effectively pushes the catalyst on the second grid disc 403, causing it to continue moving toward the inner contour of the second grid disc 403.

[0046] In addition, the soft bristles of the brush 10 will not damage the grid plate 2 403, and can ensure that the catalyst will not be excessively broken during movement, thereby maintaining its catalytic activity, making the distribution of the catalyst on the grid plate 2 403 more uniform, and the reaction efficiency is also significantly improved.

[0047] Example 3

[0048] like Figure 8 As shown, based on Example 1, in order to slow down the falling speed of the catalyst and thus make the catalyst more evenly distributed inside the reactor body 1, a float 406 is added to the descending component 4. The float 406 is suspended below the grid disc 1 401. The ball diameter is larger than the aperture of the grid hole 1 402, so it cannot fall through the grid hole 1 402. The function of the float 406 is that when the catalyst falls from the grid disc 1 401 (grid hole 1 402), it will collide with the float 406. This collision helps to further disperse the catalyst and slow down its falling speed. At the same time, the presence of the float 406 also increases the space utilization rate below the grid disc 1 401, so that the catalyst can be more evenly distributed throughout the reactor body 1.

[0049] The outer contour of the grid plate 1 401 is designed to be in sliding contact with the inner wall of the reactor body 1. This design allows the grid plate 1 401 to move smoothly along the inner wall of the reactor body 1 during rotation, and prevents the float 406 from floating from the edge of the grid plate 1 401 to the top of the grid plate 1 401.

[0050] By optimizing the design of the sliding contact grid plate 401 and the addition of the float 406, the dispersion uniformity and reaction efficiency of the catalyst in the reactor body 1 can be further improved. This design not only improves the efficiency of wastewater treatment, but also reduces the waste of catalyst, which is of great significance for improving the performance of the entire reaction system.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. An ozone oxidation reactor, comprising a reactor body (1), wherein the upper end cover of the reactor body (1) is provided with a closing cover (101), the bottom of the reactor body (1) is provided with a feed pipe (7), and the feed pipe (7) is connected to a mixing pump (8), characterized in that: The reactor body (1) contains a catalyst, and the reactor body (1) is provided with a central sleeve (3) and a disturbance component (2) for lifting and transporting the catalyst upward along the central sleeve (3); The reactor body (1) is further provided with a descent control assembly (4) capable of slowing down the falling speed of the catalyst while allowing sewage and ozone to pass freely. The descent control assembly (4) comprises a grating disc (401) which is sleeved on the central sleeve (3). The surface of the grating disc (401) is uniformly provided with grating holes (402) having a pore size larger than that of the catalyst particles. The disturbance component (2) includes a rod auger blade (201), which is rotatably connected to the interior of the central sleeve (3) as a component for lifting the catalyst. The upper end of the rod auger blade (201) is connected to the power output end of the driving member (202), and the lower end of the rod auger blade (201) extends to the bottom of the reactor body (1). The grid disc 1 (401) is rotatably connected to the central sleeve (3), and a rotating frame (6) is provided between the upper end of the rod auger blade (201) and the grid disc 1 (401) to drive the grid disc 1 (401) and the rod auger blade (201) to be connected as a whole.

2. An ozone oxidation reactor according to claim 1, characterized in that: There is an annular gap between the outer contour of the grating disc 1 (401) and the inner wall of the reactor body (1), and the upper surface of the grating disc 1 (401) gradually tilts downward from the inside to the outside. The descent assembly (4) also includes a grating disc 2 (403), and the grating disc 2 (403) is installed in the reactor body (1) through a bracket (9). The grating disc 2 (403) is located below the grating disc 1 (401). The surface of the grating disc 2 (403) is evenly provided with grating holes 2 (404) with an aperture equal to that of the grating holes 1 (402). There is also an annular gap between the inner contour of the grating disc 2 (403) and the outer wall of the center sleeve (3), and the upper surface of the grating disc 2 (403) tilts downward from the outside to the inside.

3. An ozone oxidation reactor according to claim 2, characterized in that: The number of the grid disc one (401) and the grid disc two (403) is multiple, the multiple grid discs one (401) rotate synchronously, the multiple grid discs two (403) are all installed on the bracket (9), and the number and position of the multiple grid discs two (403) correspond one to one with the number and position of the multiple grid discs one (401).

4. An ozone oxidation reactor according to claim 2 or 3, characterized in that: A brush (10) is fixedly connected to the lower surface of the first grid plate (401), and the lower end of the brush (10) contacts the upper surface of the second grid plate (403).

5. An ozone oxidation reactor according to claim 1, characterized in that: The outer contour of the grid plate 1 (401) is in sliding contact with the inner wall of the reactor body (1), and the slow-down assembly (4) further includes a float (406), and the float (406) is suspended below the grid plate 1 (401).

6. An ozone oxidation reactor according to claim 5, characterized in that: The ball diameter of the floating ball (406) is larger than the aperture of the grid hole 1 (402).

Images