A fast exchange treatment ozone catalytic oxidation tower

Abstract

The utility model is applicable to the field of wastewater treatment equipment, and provides an ozone catalytic oxidation tower for rapid exchange treatment, comprising a reaction tank body, wherein a water outlet bin, a catalyst bin and an ozone mixing and stirring bin are arranged from top to bottom in the reaction tank body, the catalyst bin is provided with a catalytic filler layer and a padding layer, a stirring drive device is arranged below the reaction tank body, the stirring drive device drives and connects a double-axis stirring and oxygenating device, the double-axis stirring and oxygenating device is arranged in the ozone mixing and stirring bin, comprises a first rotating shaft and a second rotating shaft, the first rotating shaft is connected with an ozone injection connecting joint, an oxygen injection stirring arm is arranged on the outer side of the first rotating shaft, a plurality of reverse stirring paddles are arranged on the outer side of the second rotating shaft, a coaxial reversing mechanism is arranged between the first rotating shaft and the second rotating shaft, and the reverse stirring paddle and the oxygen injection stirring arm are rotated and stirred in opposite directions through the coaxial reversing mechanism, thereby improving the solubility of ozone and accelerating the oxidation reaction efficiency.

Description

Technical Field

[0001] The utility model is applicable to the field of wastewater treatment equipment and provides an ozone catalytic oxidation tower for rapid exchange treatment. Background Art

[0002] Ozone catalytic oxidation technology is a highly efficient deep treatment technology for sewage and wastewater. It has been a hot application topic in the field of sewage treatment in recent years. Compared with ozone as a single oxidant, the hydroxyl free radicals formed by ozone under the action of a catalyst have a higher reaction rate with organic matter and stronger oxidizing properties, and can oxidize almost all organic matter. The catalyst can use the strong oxidizing property of ozone to directly oxidize organic matter in water into carbon dioxide and water, or oxidize and decompose large molecular organic matter into small molecules to make it easier to decompose them into small molecules and make them easier to degrade. In actual operation, ozone is mixed with sewage through an aeration device and then treated with a catalyst. However, in actual operation, due to the poor solubility of ozone in water, the dissolution efficiency of conventional aeration devices is low, resulting in poor oxidation effect. Utility Model Content

[0003] To this end, the utility model provides an ozone catalytic oxidation tower with rapid exchange treatment, by arranging the ozone injection port on the oxygen injection stirring arm, the ozone gas is uniformly sprayed into the sewage while stirring the sewage, and a reverse stirring paddle is also arranged, and a coaxial reversing mechanism is utilized to make the reverse stirring paddle and the oxygen injection stirring arm rotate and stir in opposite directions, thereby improving the solubility of ozone and accelerating the oxidation reaction efficiency.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: an ozone catalytic oxidation tower for rapid exchange treatment, comprising:

[0005] A reaction tank body, wherein a water outlet chamber, a catalyst chamber and an ozone mixing chamber are arranged from top to bottom in the reaction tank body, the ozone mixing chamber is connected to a sewage injection pipeline, and a water outlet is arranged at the top of the water outlet chamber;

[0006] A stirring driving device is fixedly arranged below the reaction tank body;

[0007] A double-axis stirring and oxygenating device is arranged in an ozone mixing and stirring chamber, comprising a first rotating shaft, a second rotating shaft is rotatably sleeved on the outer side of the first rotating shaft, one end of the first rotating shaft is fixedly connected to the output shaft of the stirring driving device, and the other end is rotatably connected to an ozone injection connection joint, the ozone injection connection joint is connected to an ozone air inlet pipeline, a plurality of oxygen injection stirring arms are fixedly connected to the outer side of the first rotating shaft, a plurality of oxygen injection ports are arranged on the outer side of the oxygen injection stirring arms, and a plurality of reverse stirring paddles are fixedly connected to the outer side of the second rotating shaft;

[0008] The coaxial reversal mechanism comprises a coaxial reversal bracket, a forward bevel gear, a reverse bevel gear and a connecting bevel gear. The coaxial reversal bracket is fixedly arranged at the bottom of the reaction tank body. The forward bevel gear, the reverse bevel gear and the connecting bevel gear are all rotatably arranged on the coaxial reversal bracket. The forward bevel gear and the reverse bevel gear are coaxially arranged facing each other. The forward bevel gear is fixedly connected to the first rotating shaft, the reverse bevel gear is fixedly connected to the second rotating shaft, and the connecting bevel gear is respectively meshed with the forward bevel gear and the reverse bevel gear.

[0009] Furthermore, the angle between the oxygen injection stirring arm and the first rotation axis is 30° to 75°.

[0010] Furthermore, the reverse stirring paddle includes a stirring bracket and a stirring paddle plate arranged in an "L" shape, and the oxygen injection stirring arm is arranged in a columnar space surrounded by a plurality of stirring paddle plates.

[0011] Furthermore, the stirring drive device includes a driving motor and a reducer, and the output shaft of the reducer is fixedly connected to the first rotating shaft.

[0012] Furthermore, a support seat is fixedly provided on the outside of the reaction tank body, and the stirring drive device is fixedly connected to the support seat.

[0013] Furthermore, the catalyst bin is provided with a catalytic filler layer and a gasket layer from top to bottom, respectively. The catalytic filler layer is an ozone catalyst, and the gasket layer is pebbles.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the scheme of the utility model, by setting the oxygen injection port of ozone gas on the stirring arm of the stirring device, ozone is evenly sprayed into the sewage to be treated while the stirring operation is being performed, thereby improving the solubility of ozone in the sewage;

[0016] 2. By setting two rotating shafts, oxygen injection stirring arms and reverse stirring paddles are respectively set on the two rotating shafts, and the two rotating shafts realize reverse rotation through a coaxial reversing mechanism, the sewage to be treated can be rotated and stirred in two directions, which can make the mixing of the sewage to be treated and the ozone gas more complete, which is conducive to further improving the reaction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of an ozone catalytic oxidation tower for rapid exchange treatment mentioned in the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure of an ozone catalytic oxidation tower after removing the reaction tank body in a rapid exchange treatment;

[0019] Figure 3 for Figure 2 A magnified view of the local structure at point A.

[0020] In the figure: 1. reaction tank body, 2. double-axis stirring and oxygenating device, 21. first rotating shaft, 22. oxygen injection stirring arm, 23. second rotating shaft, 24. reverse stirring paddle, 25. ozone injection connecting joint, 3. stirring drive device, 4. coaxial reversing mechanism, 41. coaxial reversing bracket, 42. forward bevel gear, 43. reverse bevel gear, 44. connecting bevel gear, 5. catalytic packing layer, 6. sewage injection pipe, 7. ozone air inlet pipe, 8. water outlet, 9. support base. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] For example, see the attached Figures 1-2 The utility model provides an ozone catalytic oxidation tower for rapid exchange treatment, including a reaction tank body 1, in which a water outlet bin, a catalyst bin and an ozone mixing and stirring bin are arranged from top to bottom, the ozone mixing and stirring bin is connected to a sewage injection pipe 6, a water outlet 8 is arranged on the top of the water outlet bin, and a catalytic filler layer 5 and a padding layer are arranged from top to bottom in the catalyst bin, the catalytic filler layer 5 is an ozone catalyst, and the padding layer is pebbles. On the one hand, the padding layer prevents the ozone catalyst from falling through the gap of the partition to the ozone mixing and stirring bin below, and on the other hand, it can also screen out large particles of debris in the sewage to be purified; a support seat 9 is fixedly arranged on the outside of the reaction tank body 1, and a stirring drive device 3 is fixedly arranged under the reaction tank body 1, and the stirring drive device 3 is fixedly connected to the support seat 9, and the stirring drive device 3 includes a driving motor and a reducer, the driving motor drives the reducer to operate, and the output shaft of the reducer drives the connection A double-axis stirring oxygen filling device 2 is arranged in an ozone mixing and stirring chamber, comprising a first rotating shaft 21, a second rotating shaft 23 is rotatably sleeved on the outer side of the first rotating shaft 21, one end of the first rotating shaft 21 is fixedly connected to the output shaft of the reducer, and the other end is rotatably connected to an ozone injection connection joint 25, the ozone injection connection joint 25 is connected to an ozone air inlet pipe 7, a plurality of oxygen injection stirring arms 22 are fixedly connected to the outer side of the first rotating shaft 21, a plurality of oxygen injection ports are arranged on the outer side of the oxygen injection stirring arm 22, an ozone pipeline is arranged in the first rotating shaft 21, the ozone gas filled from the ozone air inlet pipe 7 passes through the ozone injection connection joint 25 and the ozone pipeline in the first rotating shaft 21, and finally is ejected from the oxygen injection port of the oxygen injection stirring arm 22, a plurality of reverse stirring paddles 24 are fixedly connected to the outer side of the second rotating shaft 23; a coaxial reversing mechanism 4 is arranged between the first rotating shaft 21 and the second rotating shaft 23, refer to the attached Figure 3 As shown, the coaxial reversal mechanism 4 includes a coaxial reversal bracket 41, a forward bevel gear 42, a reverse bevel gear 43 and a connecting bevel gear 44. The coaxial reversal bracket 41 is fixedly arranged at the bottom of the reaction tank body 1, and the forward bevel gear 42, the reverse bevel gear 43 and the connecting bevel gear 44 are all rotatably arranged on the coaxial reversal bracket 41. The forward bevel gear 42 and the reverse bevel gear 43 are coaxially arranged opposite to each other. The forward bevel gear 42 is fixedly connected to the first rotating shaft 21, and the reverse bevel gear 43 is fixedly connected to the second rotating shaft 23. The connecting bevel gear 44 is respectively meshed with the forward bevel gear 42 and the reverse bevel gear 43. According to this structure, when the forward bevel gear 42 rotates driven by the first rotating shaft 21, the forward bevel gear 42 The forward bevel gear 42 and the reverse bevel gear 43 are coaxially arranged to face each other, so the forward bevel gear 42 and the reverse bevel gear 43 rotate in opposite directions, so that the first rotating shaft 21 and the second rotating shaft 23 rotate in opposite directions. At the same time, the reverse stirring paddle 24 includes a stirring bracket and a stirring paddle plate arranged in an "L" shape, and the oxygen injection stirring arm 22 is arranged in a cylindrical space surrounded by a plurality of stirring paddle plates. In this way, the sewage to be purified is mixed and dissolved with ozone under the staggered stirring of the oxygen injection stirring arm 22 and the reverse stirring paddle 24, and the effect is better.

[0023] In some embodiments, the angle between the oxygen injection stirring arm 22 and the first rotating shaft 21 is 30° to 75°, and the angles between the several oxygen injection stirring arms 22 on the first rotating shaft 21 and the first rotating shaft 21 are different. The oxygen injection stirring arms 22 set at different angles can make the sewage to be purified more fully stirred.

[0024] The working principle of this embodiment is as follows:

[0025] The sewage to be purified enters the ozone mixing and stirring chamber from the sewage injection pipe 6. After the stirring driving device 3 is started, the stirring driving device 3 drives the first rotating shaft 21 to rotate, and the first rotating shaft 21 drives the second rotating shaft 23 to rotate in the opposite direction through the coaxial reversing mechanism 4. At the same time, ozone gas is filled in from the ozone inlet pipe 7, and is injected through the ozone injection connecting joint 25 and the ozone pipeline in the first rotating shaft 21, and finally ejected from the oxygen injection port of the oxygen injection stirring arm 22. The oxygen injection stirring arm 22 evenly dissolves the ozone gas while stirring the sewage to be purified. At the same time, the second rotating shaft 23 drives the reverse stirring paddle 24 to further disrupt the water flow in the opposite direction of the rotation of the first rotating shaft 21, so that the ozone is dissolved more fully. The sewage to be purified with fully dissolved ozone reaches the catalyst chamber upward to undergo an oxidation reaction under the action of the catalyst, and is finally discharged from the water outlet 8 at the top of the water outlet chamber.

[0026] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0027] The above are only preferred embodiments of the present invention. Any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the above technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A rapid exchange treatment ozone catalytic oxidation tower, characterized in that: include: A reaction tank body (1), wherein a water outlet chamber, a catalyst chamber and an ozone mixing chamber are arranged from top to bottom in the reaction tank body (1), the ozone mixing chamber is connected to a sewage injection pipe (6), and a water outlet (8) is arranged at the top of the water outlet chamber; A stirring driving device (3) is fixedly arranged below the reaction tank body (1); A double-shaft stirring oxygenation device (2) is arranged in an ozone mixing and stirring chamber, comprising a first rotating shaft (21), a second rotating shaft (23) being rotatably sleeved on the outer side of the first rotating shaft (21), one end of the first rotating shaft (21) being fixedly connected to the output shaft of the stirring drive device (3), and the other end being rotatably connected to an ozone injection connection joint (25), the ozone injection connection joint (25) being connected to an ozone air inlet pipe (7), a plurality of oxygen injection stirring arms (22) being fixedly connected to the outer side of the first rotating shaft (21), a plurality of oxygen injection ports being arranged on the outer side of the oxygen injection stirring arms (22), and a plurality of reverse stirring paddles (24) being fixedly connected to the outer side of the second rotating shaft (23); The coaxial reversing mechanism (4) comprises a coaxial reversing bracket (41), a forward bevel gear (42), a reverse bevel gear (43) and a connecting bevel gear (44); the coaxial reversing bracket (41) is fixedly arranged at the bottom of the reaction tank body (1); the forward bevel gear (42), the reverse bevel gear (43) and the connecting bevel gear (44) are all rotatably arranged on the coaxial reversing bracket (41); the forward bevel gear (42) and the reverse bevel gear (43) are coaxially arranged facing each other; the forward bevel gear (42) is fixedly connected to the first rotating shaft (21); the reverse bevel gear (43) is fixedly connected to the second rotating shaft (23); and the connecting bevel gear (44) is respectively meshed with the forward bevel gear (42) and the reverse bevel gear (43).

2. The ozone catalytic oxidation tower with rapid exchange treatment according to claim 1, characterized in that: The angle between the oxygen injection stirring arm (22) and the first rotating shaft (21) is 30° to 75°.

3. The ozone catalytic oxidation tower with rapid exchange treatment according to claim 2 is characterized in that: The reverse stirring paddle (24) comprises a stirring support and a stirring paddle plate arranged in an "L" shape, and the oxygen injection stirring arm (22) is arranged in a columnar space surrounded by a plurality of stirring paddle plates.

4. The ozone catalytic oxidation tower with rapid exchange treatment according to claim 1 is characterized in that: The stirring drive device (3) comprises a driving motor and a reducer, and the output shaft of the reducer is fixedly connected to the first rotating shaft (21).

5. The ozone catalytic oxidation tower with rapid exchange treatment according to claim 1, characterized in that: A support seat (9) is fixedly arranged on the outside of the reaction tank body (1), and the stirring drive device (3) is fixedly connected to the support seat (9).

6. The ozone catalytic oxidation tower with rapid exchange treatment according to claim 1, characterized in that: The catalyst bin is provided with a catalytic filler layer (5) and a cushion layer from top to bottom, respectively; the catalytic filler layer (5) is an ozone catalyst, and the cushion layer is pebbles.

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