Steel catalytic ozonation contact reaction tower

Abstract

The utility model discloses a steel catalytic ozonation contact reaction tower, and belongs to the technical field of catalytic ozonation. The reaction tower comprises a lower sealing head, a cylinder body welded at the top end of the lower sealing head, an upper sealing head welded at the top end of the cylinder body, a skirt seat ring welded at the outer side of the bottom end of the lower sealing head, and a foundation ring welded at the bottom end of the skirt seat ring and used for being fixed with equipment, the rib plates are welded on the foundation ring and distributed in an annular array, the catalyst filling layer is arranged in the cylinder body, and the lower sealing head, the cylinder body and the upper sealing head are all made of steel structure lining anti-corrosion materials. The steel catalytic ozonation contact reaction tower is relatively compact in overall design, suitable for treating degradation-resistant organic wastewater with the water quantity smaller than or equal to 10 m < 3 > / h, integrally manufactured by a steel structure and high in corrosion resistance, and meanwhile, by arranging the ozone distribution device, wastewater and ozone are distributed and then subjected to reverse flow to be fully mixed and contacted to pass through the multi-phase ozone catalyst bed, so that the treatment effect is improved. The catalytic ozonation reaction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of ozone catalytic oxidation, and particularly relates to a steel ozone catalytic oxidation contact reaction tower. BACKGROUND

[0002] In the field of wastewater treatment, the treatment of refractory organic wastewater has always been a technical problem. The wastewater usually contains complex organic compounds and is difficult to be effectively degraded by traditional biological or chemical methods. The ozone oxidation technology has unique strong oxidizing properties and is used in the treatment of high-salinity and refractory organic wastewater, effectively solving the problems of biological methods and other physical and chemical methods, and opening up a new way for wastewater treatment.

[0003] However, the existing ozone catalytic oxidation reaction tower has some deficiencies in design. First, ozone gas has strong corrosiveness, especially in a humid environment, which puts high requirements on the corrosion resistance of the equipment. Secondly, the mixing and contacting process of ozone and wastewater usually only utilizes ozone to directly oxidize wastewater. Since the dissolution and contacting of ozone and water are insufficient, the mass transfer effect is poor, resulting in low ozone utilization rate and low oxidation efficiency. In addition, the catalyst is prone to fouling or accumulation during use, which not only leads to performance degradation of the system, but also needs to be frequently replaced, increasing the operation cost and maintenance burden.

[0004] Therefore, the application provides a steel ozone catalytic oxidation contact reaction tower to solve the above problems. CONTENT OF THE INVENTION

[0005] The application provides a steel ozone catalytic oxidation contact reaction tower, which aims to solve the problems of high corrosion resistance requirement, insufficient mixing and contacting of ozone and wastewater, low efficiency, fouling of catalyst and frequent replacement of catalyst in the design of the existing ozone catalytic oxidation reaction tower.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a steel ozone catalytic oxidation contact reaction tower, comprising a lower head, a cylinder body welded at the top end of the lower head, an upper head welded at the top end of the cylinder body, a skirt ring welded at the bottom end of the lower head, a base ring welded at the bottom end of the skirt ring for fixing with equipment, a rib plate arranged in an annular array on the base ring, and a catalyst filling layer arranged in the cylinder body, wherein the lower head, the cylinder body and the upper head are all made of steel structure lined with corrosion-resistant materials.

[0007] The catalyst filling layer comprises a support ring fixedly arranged at the bottom end of the inner wall of the cylinder, a supporting layer fixedly connected with the top end of the support ring and arranged in the cylinder, and a multi-phase ozone catalyst filled on the supporting layer, wherein the pore size of the supporting layer is smaller than the particle size of the multi-phase ozone catalyst, and the multi-phase ozone catalyst is made of a plurality of high-efficiency active metal oxides and metal elements as active catalyst materials.

[0008] The reaction tower further comprises an ozone gas distribution device arranged in the cylinder at a position below the support ring, a catalyst backwashing water and gas distribution device arranged in the cylinder at a position below the ozone gas distribution device, and a water inlet distribution device arranged in the cylinder close to one end of the upper head.

[0009] Preferably, the cylinder is fixedly provided with a catalyst unloading hole on one side above the supporting layer, and is fixedly provided with an ozone gas inlet flange, a catalyst backwashing interface flange, a water inlet interface flange, and a catalyst backwashing drainage interface flange at positions of the ozone gas distribution device, the catalyst backwashing water and gas distribution device, and the water inlet distribution device, respectively.

[0010] Preferably, the upper head is fixedly provided with a catalyst filling hole, an ozone tail gas discharge interface flange, a breather valve interface flange, and a standby interface flange at the top end and in communication with the inside of the cylinder.

[0011] Preferably, the lower head is fixedly provided with a pipeline fixing part at the bottom end, and the pipeline fixing part is fixedly provided with a water production or emptying interface flange in communication with the inside of the cylinder and fixedly connected with the bottom end of the lower head.

[0012] Preferably, the cylinder is fixedly provided with a sight glass and an inspection hole.

[0013] Preferably, the ozone gas distribution device comprises a first reducing part arranged at the bottom end of the inside of the cylinder and fixedly connected with the ozone gas inlet flange, a first pipeline support part fixedly arranged in the cylinder away from one side of the first reducing part, an ozone gas inlet main pipe fixedly arranged on the first pipeline support part and in communication with the first reducing part, a pipe clamp fixedly arranged on the ozone gas inlet main pipe, and a tubular titanium aeration head fixedly arranged on the pipe clamp away from one end of the ozone gas inlet main pipe, wherein the tubular titanium aeration head is provided with a plurality of tubular titanium aeration heads, the plurality of tubular titanium aeration heads are of different lengths, the plurality of tubular titanium aeration heads are distributed on both sides of the ozone gas inlet main pipe in a non-tube form, and one end of the plurality of tubular titanium aeration heads away from the ozone gas inlet main pipe is fixedly provided with an aeration head support frame fixedly connected with the inside of the cylinder.

[0014] Preferably, the catalyst backwashing water and gas distribution device is arranged in the cylinder corresponding to the position below the tubular titanium aeration head and is fixedly connected with the second reducing fitting of the catalyst backwashing interface flange, the second pipeline support fixedly arranged in the cylinder away from the second reducing fitting, the backwashing water and gas inlet main pipe fixedly arranged on the second pipeline support and communicated with the second reducing fitting, and the perforated water and gas distribution pipe fixedly arranged on the backwashing water and gas inlet main pipe, wherein the perforated water and gas distribution pipe is provided with a plurality of perforated water and gas distribution pipes of different lengths, the perforated water and gas distribution pipes are distributed on both sides of the backwashing water and gas inlet main pipe in the form of non-letter pipes, and the ends of the perforated water and gas distribution pipes away from the backwashing water and gas inlet main pipe are fixedly provided with the first pipeline support frame fixedly connected with the inside of the cylinder.

[0015] Preferably, the water inlet distribution device is fixedly arranged at the top end of the inside of the cylinder and communicated with the water inlet interface flange, the third reducing fitting fixedly arranged in the cylinder away from the third reducing fitting, the water inlet main pipe fixedly arranged on the third pipeline support and communicated with the third reducing fitting, and the perforated water distribution pipe fixedly arranged on the water inlet main pipe, wherein the perforated water distribution pipe is provided with a plurality of perforated water distribution pipes of different lengths, the perforated water distribution pipes are distributed on both sides of the water inlet main pipe in the form of non-letter pipes, the ends of the perforated water distribution pipes away from the water inlet main pipe are fixedly provided with the second pipeline support frame fixedly connected with the inside of the cylinder, and the perforated water distribution pipe is provided with a plurality of small holes on the oblique lower sides for uniformly distributing wastewater.

[0016] The steel ozone catalytic oxidation contact reaction tower is relatively compact in overall design, is suitable for treating refractory organic wastewater with a water quantity of less than or equal to 10 m3 / h, and is made of a steel structure, which is stable in structure, high in strength and strong in corrosion resistance.

[0017] The steel ozone catalytic oxidation contact reaction tower is provided with an ozone gas distribution device, so that the wastewater and the ozone are fully mixed and contacted after being distributed in the reverse direction through the multi-phase ozone catalyst bed, and the ozone catalytic oxidation reaction efficiency is improved.

[0018] The catalyst bed in the steel ozone catalytic oxidation contact reaction tower is composed of multi-phase ozone catalysts, the catalysts have high-efficiency active metal oxides and metal elements as active catalyst materials, have a three-dimensional framework, a large number of micropores and uniform distribution, and the design of the supporting layer ensures that the catalysts will not be lost, and the catalyst backwashing water and gas distribution device is arranged, so that the surface of the catalysts can be prevented from being blocked by backwashing, and the service life of the catalysts is prolonged.

[0019] The steel ozone catalytic oxidation reaction tower is designed by combining the sight glass and the manhole, so that the operation state of the equipment is observed and the equipment is maintained, the reliability and operation efficiency of the equipment are improved, and the operation and maintenance are more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Fig. 1 is a structural schematic diagram of a steel ozone catalytic oxidation contact reaction tower;

[0021] Figure 2 Fig. 2 is a structural schematic diagram of an ozone gas distribution device in a steel ozone catalytic oxidation contact reaction tower;

[0022] Figure 3 Fig. 3 is a structural schematic diagram of a catalyst backwashing water and gas distribution device in a steel ozone catalytic oxidation contact reaction tower;

[0023] Figure 4 Fig. 4 is a structural schematic diagram of a water inlet distribution device in a steel ozone catalytic oxidation contact reaction tower.

[0024] In the drawings:

[0025] 1, base ring; 2, rib plate; 3, skirt ring; 4, lower head; 5, cylinder; 6, upper head; 7, support ring; 8, bearing layer; 9, sight glass; 10, manhole; 11, multi-phase ozone catalyst; 12, catalyst unloading hole; 13, catalyst loading hole; 14, ozone gas inlet flange; 15, catalyst backwashing flange; 16, water production or emptying flange; 17, ozone tail gas discharge flange; 18, breather valve flange; 19, water inlet flange; 20, catalyst backwashing water discharge flange; 21, spare flange; 22, pipe fixing part; 23, first reducing; 24, aeration head support frame; 25, tubular titanium aeration head; 26, pipe clamp; 27, ozone gas inlet main pipe; 28, first pipe support; 29, second reducing; 30, first pipe support frame; 31, perforated water and gas distribution pipe; 32, backwashing water and gas inlet main pipe; 33, second pipe support; 34, third reducing; 35, second pipe support frame; 36, perforated water distribution pipe; 37, water inlet main pipe; 38, third pipe support. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] Embodiment 1

[0028] This embodiment provides a steel ozone catalytic oxidation contact reaction tower, such as... Figures 1-4 As shown, the reaction tower includes a lower head 4, a cylinder 5 welded to the top of the lower head 4, an upper head 6 welded to the top of the cylinder 5, a skirt ring 3 welded to the outer side of the bottom end of the lower head 4, a base ring 1 welded to the bottom end of the skirt ring 3 for fixing to the equipment, stiffening plates 2 welded to the base ring 1 in a ring array, and a catalyst filling layer disposed inside the cylinder 5. The lower head 4, cylinder 5, and upper head 6 are all made of steel structure with anti-corrosion lining material. The catalyst filling layer includes a support ring 7 fixedly disposed at the bottom end of the inner wall of the cylinder 5, and a catalyst filling layer disposed inside the cylinder 5 and connected to the support ring 7. The top of ring 7 is fixedly connected to a support layer 8 and a multiphase ozone catalyst 11 filled on the support layer 8. The pore size of the support layer 8 is smaller than the particle size of the multiphase ozone catalyst 11. The multiphase ozone catalyst 11 is made of a variety of highly efficient active metal oxides and metal elements as active catalytic materials. The reaction tower also includes an ozone gas distribution device set inside the cylinder 5 at a position corresponding to the position below the support ring 7, a catalyst backwashing water and gas distribution device set inside the cylinder 5 at a position corresponding to the position below the ozone gas distribution device, and a water inlet distribution device set inside the cylinder 5 near the upper end cap 6.

[0029] To ensure the operation of the reaction tower, a catalyst discharge port 12 is fixedly installed on one side of the cylinder 5 above the support layer 8. An ozone inlet flange 14, a catalyst backwashing flange 15, a water inlet flange 19, and a catalyst backwashing drain flange 20 are fixedly installed on the cylinder 5 at the positions corresponding to the ozone gas distribution device, the catalyst backwashing water and gas distribution device, and the water inlet distribution device, respectively. The catalyst discharge port 12 allows operators to easily load, unload, and replace the catalyst in the cylinder 5, while the ozone inlet flange 14, the catalyst backwashing flange 15, the water inlet flange 19, and the catalyst backwashing drain flange 20 allow the reaction tower to be easily connected to other devices or pipelines.

[0030] The top of the upper head 6 is fixedly equipped with a catalyst filling hole 13, an ozone exhaust gas emission interface flange 17, a breather valve interface flange 18, and a spare interface flange 21, which are connected to the inside of the cylinder 5. The catalyst filling hole 13 allows the operator to easily fill or replenish the catalyst into the cylinder 5 inside the upper head 6. The ozone exhaust gas emission interface flange 17 is used to connect the ozone exhaust gas emission pipe to ensure that the ozone exhaust gas generated during the reaction can be safely and effectively discharged into the atmosphere. The breather valve interface flange 18 is used to connect the breather valve, which can automatically exhaust air when the internal pressure of the equipment is too high and draw in air when the pressure is too low, thereby maintaining the pressure balance inside the equipment. The spare interface flange 21 provides the possibility for future expansion and modification.

[0031] The bottom end of the lower head 4 is fixedly provided with a pipeline fixing part 22, and a water production or emptying interface flange 16 is fixedly arranged on the pipeline fixing part 22 and is connected with the inside of the cylinder body 5 and the bottom end of the lower head 4. The design of the pipeline fixing part 22 enhances the connection stability between the water production or emptying interface flange 16 and the lower head 4, and the arrangement of the water production or emptying interface flange 16 enables the reaction tower to be conveniently connected with other pipeline systems.

[0032] In use, first, the wastewater is introduced into the top region of the cylinder body 5 through the water inlet distribution device. The water inlet distribution device ensures that the wastewater can be uniformly distributed in the cylinder body 5, thereby improving the contact efficiency of the wastewater with the ozone and the heterogeneous ozone catalyst 11. Subsequently, the wastewater flows downward under the action of gravity and passes through the catalyst filling layer in the cylinder body 5. The support layer 8 can provide stable support, and the aperture of the support layer 8 is smaller than the particle size of the heterogeneous ozone catalyst 11, effectively preventing the catalyst particles from falling or flowing, and the heterogeneous ozone catalyst 11 is made of a plurality of high-efficiency active metal oxides and metal elements, has excellent catalytic performance, and can accelerate the reaction rate of ozone and organic pollutants in the wastewater. While the wastewater passes through the catalyst filling layer, the ozone gas distribution device starts to work and uniformly injects ozone gas into the cylinder body 5. At this time, the ozone gas and the wastewater undergo catalytic oxidation reaction under the action of the heterogeneous ozone catalyst 11, generating hydroxyl radicals with strong oxidizing ability. These radicals can efficiently decompose high-stability and refractory organic pollutants in the wastewater. However, in order to maintain the activity of the heterogeneous ozone catalyst 11 and prevent clogging, the reaction tower is also equipped with a catalyst backwashing water distribution and gas distribution device, which can backwash the catalyst filling layer when needed to remove impurities and deposits attached to the surface of the catalyst. The wastewater treated by the catalytic oxidation reaction continues to flow downward and is finally discharged from the reaction tower through the lower head 4.

[0033] Specifically, the ozone gas distribution device includes a first reducing pipe 23 arranged at the bottom end inside the cylinder body 5 and fixedly connected with the ozone gas inlet interface flange 14, a first pipeline support 28 fixedly arranged in the cylinder body 5 away from the first reducing pipe 23, an ozone gas inlet main pipe 27 fixedly arranged on the first pipeline support 28 and in communication with the first reducing pipe 23, a pipe clamp 26 fixedly arranged on the ozone gas inlet main pipe 27, and a plurality of tubular titanium aeration heads 25 fixedly arranged on the pipe clamp 26 away from the ozone gas inlet main pipe 27. The plurality of tubular titanium aeration heads 25 are arranged on both sides of the ozone gas inlet main pipe 27 in a non-letter pipe form and are fixedly arranged with an aeration head support frame 24 fixedly connected with the inside of the cylinder body 5 at the end away from the ozone gas inlet main pipe 27.

[0034] Ozone gas enters the first reducer 23 through the ozone gas inlet flange 14, after flow and pressure adjustment, enters the ozone gas inlet main pipe 27, and when the ozone gas flows in the ozone gas inlet main pipe 27, it is uniformly dispersed into the wastewater in the cylinder 5 through the various tubular titanium aeration heads 25 connected by the pipe clamp 26. Due to the different lengths of the tubular titanium aeration heads 25 and the non-tube form distribution, uniform distribution and effective aeration of ozone gas in the cylinder 5 can be ensured. During the aeration process, ozone gas fully contacts and reacts with organic pollutants in the wastewater, generating harmless or low-toxicity products. At the same time, the strong oxidizing property of ozone can also destroy the cell walls of microorganisms in the wastewater, achieving the effect of sterilization and disinfection. The wastewater treated by catalytic oxidation continues to flow downward and is finally discharged from the lower head 4.

[0035] Further, the catalyst backwashing water and gas distribution device is arranged in the cylinder 5 at a position corresponding to the lower part of the tubular titanium aeration head 25 and is fixedly connected with the second reducer 29 of the catalyst backwashing interface flange 15, the second pipeline support 33 fixedly arranged in the cylinder 5 away from the second reducer 29, the backwashing water inlet gas main pipe 32 fixedly arranged on the second pipeline support 33 and communicated with the second reducer 29, and the perforated water and gas distribution pipe 31 fixedly arranged on the backwashing water inlet gas main pipe 32. The perforated water and gas distribution pipe 31 is provided with a plurality of perforated water and gas distribution pipes 31, the plurality of perforated water and gas distribution pipes 31 are different in length, and the plurality of perforated water and gas distribution pipes 31 are distributed in a non-tube form on both sides of the backwashing water inlet gas main pipe 32. The end of the plurality of perforated water and gas distribution pipes 31 away from the backwashing water inlet gas main pipe 32 is fixedly provided with the first pipeline support frame 30 fixedly connected with the inside of the cylinder 5.

[0036] When the multi-phase ozone catalyst 11 needs to be backwashed, the backwashing water flow and gas flow enter the second reducer 29 through the catalyst backwashing interface flange 15, mix and adjust the direction in the second reducer 29, and then enter the backwashing water inlet gas main pipe 32. The mixed water flow and gas flow continue to flow in the backwashing water inlet gas main pipe 32 and are uniformly distributed to each area in the cylinder 5 through the plurality of perforated water and gas distribution pipes 31. Due to the different lengths of the perforated water and gas distribution pipes 31 and the non-tube form distribution, uniform distribution of water and gas and catalyst particles in the cylinder 5 can be ensured. During the backwashing process, the water flow and gas flow act on the catalyst particles to wash off the pollutants on the surface of the catalyst particles. The washed-off pollutants are carried out of the cylinder 5 along with the water flow and gas flow, thereby realizing backwashing and regeneration of the catalyst. The second pipeline support 33 and the first pipeline support frame 30 play a role in supporting and fixing the backwashing pipeline system during the entire backwashing process, ensuring the stability and reliability thereof.

[0037] Further, the water inlet distribution device is fixedly arranged at the top end inside the cylinder 5 and includes a third reducing pipe 34 in communication with the water inlet flange 19, a third pipeline support 38 fixedly arranged inside the cylinder 5 away from the third reducing pipe 34, a water inlet main pipe 37 fixedly arranged on the third pipeline support 38 and in communication with the third reducing pipe 34, and a plurality of perforated water distribution pipes 36 fixedly arranged on the water inlet main pipe 37. The perforated water distribution pipes 36 are of different lengths and are distributed on both sides of the water inlet main pipe 37 in a non-letter pipe form. The perforated water distribution pipes 36 are fixedly arranged with a second pipeline support frame 35 at the end away from the water inlet main pipe 37 and are fixedly connected to the inside of the cylinder 5. Small holes for uniformly distributing wastewater are arranged on the obliquely lower sides of the perforated water distribution pipes 36.

[0038] The wastewater enters the third reducing pipe 34 through the water inlet flange 19. In the third reducing pipe 34, the flow rate and pressure of the wastewater are adjusted to meet the requirements of the subsequent treatment process. The adjusted wastewater enters the water inlet main pipe 37, which delivers the wastewater to each perforated water distribution pipe 36. Since the perforated water distribution pipes 36 are of different lengths and are distributed in a non-letter pipe form, the uniform distribution of the wastewater in the cylinder 5 is ensured. The wastewater is uniformly sprayed through the small holes on the obliquely lower sides of the perforated water distribution pipes 36. The design of these small holes allows the wastewater to be uniformly distributed in the cylinder 5 with small pressure loss and large spraying area. The uniformly distributed wastewater is beneficial to the full contact and reaction of the catalyst with the wastewater in the subsequent treatment process. The third pipeline support 38 and the second pipeline support frame 35 support and fix the water inlet main pipe 37 and the perforated water distribution pipes 36 during the entire water inlet distribution process, ensuring their stability and reliability.

[0039] It should be noted that the ozone gas distribution device, the catalyst backwashing water and gas distribution device, and the pipelines, pipe fittings, and support frames in the water inlet distribution device are all made of stainless steel 316L.

[0040] Example 2

[0041] Unlike Example 1, a sight glass 9 and an access hole 10 are fixedly arranged on the cylinder 5 to facilitate the observation of the running state of the equipment and the maintenance of the equipment. The arrangement of the sight glass 9 allows the operator to intuitively observe the running state inside the cylinder 5 without opening the equipment or entering the inside of the equipment, which helps to timely discover abnormal conditions inside the equipment. The design of the access hole 10 enables the maintenance personnel to conveniently enter the inside of the cylinder 5 to perform necessary maintenance and repair work, improving the maintenance efficiency.

[0042] The above merely provides the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and concept of the present application, can make equivalent replacements or changes within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A steel ozone catalytic oxidation contact reaction tower, comprising a lower head (4), a cylinder (5) welded at the top end of the lower head (4), an upper head (6) welded at the top end of the cylinder (5), a skirt ring (3) welded at the bottom end of the lower head (4) outside, a base ring (1) welded at the bottom end of the skirt ring (3) for fixing with equipment, a rib plate (2) arranged in a ring array on the base ring (1), and a catalyst filling layer arranged in the cylinder (5), characterized in that: The lower head (4), the cylinder (5) and the upper head (6) are made of steel structure lined with corrosion-resistant materials; The catalyst filling layer comprises a support ring (7) fixedly arranged at the bottom end of the inner wall of the cylinder (5), a supporting layer (8) fixedly connected with the top end of the support ring (7) and arranged in the cylinder (5), and a plurality of heterogeneous ozone catalysts (11) filled on the supporting layer (8), wherein the pore size of the supporting layer (8) is smaller than the particle size of the heterogeneous ozone catalysts (11), and the heterogeneous ozone catalysts (11) are made of a plurality of high-efficiency active metal oxides and metal elements as active catalyst materials; The reaction tower further comprises an ozone gas distribution device arranged in the cylinder (5) at a position corresponding to the lower side of the support ring (7), a catalyst backwashing water and gas distribution device arranged in the cylinder (5) at a position corresponding to the lower side of the ozone gas distribution device, and a water inlet distribution device arranged in the cylinder (5) near one end of the upper head (6).

2. The steel catalytic ozonation contactor tower according to claim 1, characterized in that: The cylinder (5) is fixedly provided with a catalyst unloading hole (12) on one side above the supporting layer (8), and is fixedly provided with an ozone gas inlet flange (14), a catalyst backwashing flange (15), a water inlet flange (19), a catalyst backwashing drainage flange (20), and a standby flange (21) at positions corresponding to the ozone gas distribution device, the catalyst backwashing water and gas distribution device, and the water inlet distribution device, respectively.

3. The steel catalytic ozone oxidation contact reaction tower according to claim 2, characterized in that: The top end of the upper head (6) is fixedly provided with a catalyst loading hole (13) in communication with the inside of the cylinder (5), an ozone tail gas discharge flange (17), a breather valve flange (18), and a standby flange (21).

4. The steel catalytic ozone oxidation contact reaction tower according to claim 3, characterized in that: The bottom end of the lower head (4) is fixedly provided with a pipeline fixing part (22), and the pipeline fixing part (22) is fixedly provided with a water production or emptying flange (16) fixedly connected with the inside of the cylinder (5) and the bottom end of the lower head (4).

5. The steel catalytic ozone oxidation contact reaction tower according to claim 2, characterized in that: The cylinder (5) is fixedly provided with a sight glass (9) and an inspection hole (10).

6. The steel catalytic ozone oxidation contact reaction tower according to claim 2, characterized in that: The ozone gas distribution device comprises a first reducing device (23) fixedly arranged at the bottom end of the inside of the cylinder (5) and fixedly connected with the ozone gas inlet flange (14), a first pipeline support part (28) fixedly arranged in the cylinder (5) away from one side of the first reducing device (23), an ozone gas inlet main pipe (27) fixedly arranged on the first pipeline support part (28) and in communication with the first reducing device (23), a pipe clamp (26) fixedly arranged on the ozone gas inlet main pipe (27), and a plurality of tubular titanium aeration heads (25) fixedly arranged on one end of the pipe clamp (26) away from the ozone gas inlet main pipe (27), wherein the tubular titanium aeration heads (25) are arranged in a non-tube form on both sides of the ozone gas inlet main pipe (27), the tubular titanium aeration heads (25) are different in length, and the tubular titanium aeration heads (25) are fixedly provided with an aeration head support frame (24) fixedly connected with the inside of the cylinder (5) at one end away from the ozone gas inlet main pipe (27).

7. The steel catalytic ozone oxidation contact reaction tower according to claim 6, characterized in that: The catalyst backwashing water and gas distribution device is arranged in the cylinder (5) at a position corresponding to below the tubular titanium aerator (25), is fixedly connected with the second reducing (29) of the catalyst backwashing interface flange (15), is fixedly arranged in the second pipeline support (33) of the cylinder (5) away from the second reducing (29) side, is fixedly arranged in the backwashing water inlet air main pipe (32) of the second pipeline support (33) and is communicated with the second reducing (29), and the perforated water and gas distribution pipe (31) is fixedly arranged on the backwashing water inlet air main pipe (32). The perforated water and gas distribution pipe (31) is provided with several, several perforated water and gas distribution pipes (31) are different in length, and several perforated water and gas distribution pipes (31) are distributed in the form of non-character pipes on both sides of the backwashing water inlet air main pipe (32). Several perforated water and gas distribution pipes (31) are fixedly provided with the first pipeline support frame (30) fixedly connected with the inside of the cylinder (5) at one end away from the backwashing water inlet air main pipe (32).

8. The steel catalytic ozone oxidation contact reaction tower according to claim 2, characterized in that: The water inlet distribution device is fixedly arranged in the third reducing (34) of the cylinder (5) inside the top end and is communicated with the water inlet interface flange (19), is fixedly arranged in the third pipeline support (38) of the cylinder (5) away from the third reducing (34) side, is fixedly arranged in the water inlet main pipe (37) of the third pipeline support (38) and is communicated with the third reducing (34), and the perforated water distribution pipe (36) is fixedly arranged on the water inlet main pipe (37). The perforated water distribution pipe (36) is provided with several, several perforated water distribution pipes (36) are different in length, and several perforated water distribution pipes (36) are distributed in the form of non-character pipes on both sides of the water inlet main pipe (37). Several perforated water distribution pipes (36) are fixedly provided with the second pipeline support frame (35) fixedly connected with the inside of the cylinder (5) at one end away from the water inlet main pipe (37). The perforated water distribution pipe (36) is provided with a small hole for uniformly distributing wastewater on the oblique lower side.

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