Catalytic oxidation reactor

Abstract

The utility model is suitable for the technical field of wastewater treatment, and provides a catalytic oxidation reactor which comprises a reaction tank with a water inlet pipe, the tank cover is arranged at the top of the reaction tank; the liquid storage tank is fixedly mounted at the bottom of the reaction tank; the annular groove is formed in the reaction tank; and the water flow circulating surging mechanism is arranged on the reaction tank and is used for enabling the wastewater to surge upwards. The catalytic oxidation reactor provided by the scheme can enable water flow to surge upwards while stirring wastewater and a solid catalyst in the reaction tank, so that the solid catalyst can be always suspended in the wastewater, the condition that the solid catalyst is precipitated is avoided, and meanwhile, an oxidizing agent can be quickly and uniformly diffused into the wastewater, so that the oxidation efficiency is improved. The catalytic reaction efficiency is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wastewater treatment, and particularly relates to a catalytic oxidation reactor. Background Art

[0002] The heterogeneous Fenton technology refers to using a heterogeneous catalyst (such as a solid catalyst) to replace the traditional homogeneous catalyst (such as Fe^2+ ions) to catalyze the decomposition of H2O2 to generate hydroxyl radicals (·OH), and then oxidize and decompose organic pollutants in water. This technology overcomes the disadvantages of a large amount of iron mud generation and a narrow pH value applicable range in the homogeneous Fenton reaction.

[0003] However, existing catalytic oxidation reactors often use agitation alone to suspend and move solid catalysts in wastewater. However, due to the certain mass of the solid catalysts, they will gradually precipitate to the bottom of the reaction tank, thus affecting the efficiency of the catalytic reaction. Summary of the Utility Model

[0004] The utility model provides a catalytic oxidation reactor, aiming to solve the problem of low catalytic reaction efficiency of existing catalytic oxidation reactors proposed in the above background art.

[0005] To solve the above problems, the utility model is realized as follows. A catalytic oxidation reactor includes: a reaction tank with a water inlet pipe; a tank cover arranged on the top of the reaction tank; a liquid storage tank fixedly installed at the bottom of the reaction tank; an annular groove opened on the reaction tank; a water flow circulation and surging mechanism arranged on the reaction tank, and the water flow circulation and surging mechanism is used to make the wastewater surge upward; a stirring and diffusion mechanism installed on the tank cover, and the stirring and diffusion mechanism is used to stir the wastewater and heterogeneous catalyst in the reaction tank and make the oxidant diffuse into the wastewater in the reaction tank.

[0006] Preferably, an annular plate is arranged on the annular groove, a plurality of connecting rods are fixedly installed at the bottom of the annular plate, the bottom ends of the plurality of connecting rods are fixedly installed with the same annular frame, a partition net is arranged on the inner wall of the annular frame, and a plurality of pull rings are fixedly installed on the annular plate.

[0007] Preferably, a plurality of pin holes are opened on the top of the reaction tank, a plurality of pin blocks are fixedly installed at the bottom of the tank cover, and the plurality of pin blocks are respectively adapted to the plurality of pin holes.

[0008] Preferably, a water outlet is opened on the inner wall of the reaction tank, and a filter screen is arranged on the inner wall of the water outlet.

[0009] Preferably, the water flow circulation and surging mechanism includes: a water flow distributor provided on the inner wall of the bottom of the reaction tank; a circulation pump fixedly installed on the reaction tank, the water inlet end of the circulation pump being communicated with the water outlet; a water guide pipe provided at the water outlet end of the circulation pump and communicated with the water flow distributor.

[0010] Preferably, the stirring and diffusion mechanism includes: a rotary joint provided on the tank cover; a rotating pipe provided at the bottom end of the rotary joint; a plurality of stirring blades fixedly installed on the rotating pipe; a plurality of shunt pipes provided on the rotating pipe; a plurality of shunt holes respectively opened on the plurality of shunt pipes; a driving motor fixedly installed on the inner wall of the top of the tank cover and provided with a driving gear; a driven gear fixedly sleeved on the rotating pipe and meshed with the driving gear; a water pump provided on the inner wall of the liquid storage tank; a liquid guide pipe provided at the water outlet end of the water pump and communicated with the rotary joint.

[0011] Preferably, a drain pipe is provided on the reaction tank, and a drain valve is provided on the drain pipe.

[0012] Preferably, a controller is provided on the liquid storage tank, a liquid injection port is opened on the liquid storage tank, and a sealing cover is threadedly installed on the liquid injection port.

[0013] Compared with the related art, the catalytic oxidation reactor provided by the present utility model has the following beneficial effects:

[0014] Compared with the prior art, in the catalytic oxidation reactor provided by the present solution, the reaction tank serves as the main body of the reactor for accommodating wastewater and heterogeneous catalyst, the water inlet pipe is used to introduce the wastewater to be treated into the reaction tank, the tank cover is used to seal the reaction tank and serve as the installation basis for the stirring and diffusion mechanism, the liquid storage tank is used to store the liquid oxidant, the water flow circulation and surging mechanism enables the wastewater to surge upward, so that the heterogeneous catalyst can be suspended in the wastewater and precipitation can be avoided, thereby improving the catalytic oxidation efficiency, and the stirring and diffusion mechanism is used to stir the wastewater and heterogeneous catalyst in the reaction tank, so that the catalyst is evenly dispersed in the wastewater and the diffusion of the oxidant is promoted, thereby enhancing the effect of the oxidation reaction;

[0015] In summary, through the design of the water flow circulation and surging mechanism and the stirring and diffusion mechanism, the catalytic oxidation reactor of the present invention realizes the effective treatment of wastewater and the full utilization of the oxidant, improves the efficiency and quality of wastewater treatment. At the same time, the design of the liquid storage tank also facilitates the recycling of the catalyst and the oxidant, reducing the treatment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structure diagram of a catalytic oxidation reactor provided by the present utility model;

[0017] Figure 2 is Figure 1 the front elevation sectional structure schematic diagram of;

[0018] Figure 3 is Figure 2 the enlarged structure schematic diagram of part A shown in;

[0019] Figure 4 is Figure 2 the enlarged structure schematic diagram of part B shown in;

[0020] Figure 5 is Figure 2 the enlarged structure schematic diagram of part C shown in.

[0021] Reference numerals: 1, reaction tank; 2, tank cover; 3, liquid storage tank; 4, annular groove; 5, annular plate; 6, connecting rod; 7, annular frame; 8, partition net; 9, pull ring; 10, pin hole; 11, pin block; 12, water outlet; 13, filter screen; 14, circulation pump; 15, water flow distributor; 16, water guide pipe; 17, rotary joint; 18, rotating pipe; 19, stirring blade; 20, shunt pipe; 21, shunt hole; 22, drive motor; 23, driving gear; 24, driven gear; 25, water pump; 26, liquid guide pipe; 27, drain pipe; 28, drain valve; 29, controller. Specific embodiments

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order; the orientation or positional relationship indicated by the terms "inner", "outer", "left", "right" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0024] An embodiment of the utility model provides a catalytic oxidation reactor, as Figures 1-5 shown. The catalytic oxidation reactor includes: a reaction tank 1 with a water inlet pipe; a tank cover 2 arranged at the top of the reaction tank 1; a liquid storage tank 3 fixedly installed at the bottom of the reaction tank 1; an annular groove 4 opened on the reaction tank 1; a water flow circulation and surging mechanism arranged on the reaction tank 1, which is used to make the wastewater surge upward; a stirring and diffusion mechanism installed on the tank cover 2, which is used to stir the wastewater and the heterogeneous catalyst in the reaction tank 1 and make the oxidant diffuse into the wastewater in the reaction tank 1.

[0025] In this embodiment, the reaction tank 1 serves as the main body of the reactor, which is used to accommodate the wastewater and the heterogeneous catalyst. The water inlet pipe is used to introduce the wastewater to be treated into the reaction tank. The tank cover 2 is used to seal the reaction tank and serve as the installation base of the stirring and diffusion mechanism. The liquid storage tank 3 is used to store the liquid oxidant. The water flow circulation and surging mechanism makes the wastewater surge upward, so that the heterogeneous catalyst can be suspended in the wastewater and avoid precipitation, thereby improving the catalytic oxidation efficiency. The stirring and diffusion mechanism is used to stir the wastewater and the heterogeneous catalyst in the reaction tank, make the catalyst evenly dispersed in the wastewater, and promote the diffusion of the oxidant, thereby enhancing the effect of the oxidation reaction;

[0026] In summary, through the design of the water flow circulation and surging mechanism and the stirring and diffusion mechanism, the catalytic oxidation reactor of the present invention realizes the effective treatment of wastewater and the full utilization of the oxidant, improves the efficiency and quality of wastewater treatment. At the same time, the design of the liquid storage tank also facilitates the recycling of the catalyst and the oxidant, and reduces the treatment cost.

[0027] In a further preferred embodiment of the utility model, an annular plate 5 is arranged on the annular groove 4. A plurality of connecting rods 6 are fixedly installed at the bottom of the annular plate 5. The bottom ends of the plurality of connecting rods 6 are fixedly installed with the same annular frame 7. A partition net 8 is arranged on the inner wall of the annular frame 7. A plurality of pull rings 9 are fixedly installed on the annular plate 5.

[0028] In this embodiment, the annular plate 5 can be installed through the annular groove 4. Through the annular frame 7 and the partition net 8, it is convenient to collect the heterogeneous catalyst after the reactor stops. Through the plurality of pull rings 9, the annular plate 5, the plurality of connecting rods 6, the annular frame 7 and the partition net 8 can be pulled out of the reaction tank 1, so as to facilitate the cleaning of the heterogeneous catalyst collected on the annular frame 7 and the partition net 8.

[0029] In a further preferred embodiment of the utility model, a plurality of pin holes 10 are opened at the top of the reaction tank 1. A plurality of pin blocks 11 are fixedly installed at the bottom of the tank cover 2. The plurality of pin blocks 11 are respectively adapted to the plurality of pin holes 10.

[0030] In this embodiment, the can lid 2 can be positioned by inserting a plurality of pin blocks 11 into a plurality of pin holes 10.

[0031] In a further preferred embodiment of the present utility model, a water outlet 12 is provided on the inner wall of the reaction tank 1, and a filter screen 13 is provided on the inner wall of the water outlet 12.

[0032] In this embodiment, the wastewater in the reaction tank 1 can enter the circulation pump 14 through the water outlet 12, and the filter screen 13 can prevent the heterogeneous catalyst from entering the water outlet 12.

[0033] In a further preferred embodiment of the present utility model, the water flow circulation and surging mechanism includes: a water flow distributor 15 provided on the inner bottom wall of the reaction tank 1; a circulation pump 14 fixedly installed on the reaction tank 1, the water inlet end of the circulation pump 14 being communicated with the water outlet 12; and a water guide pipe 16 provided at the water outlet end of the circulation pump 14 and communicated with the water flow distributor 15.

[0034] In this embodiment, the water in the reaction tank 1 is pumped out by the circulation pump 14 and injected into the water flow distributor 15 through the water guide pipe 16, and the wastewater surges upward through the water flow distributor 15, so that the heterogeneous catalyst can be suspended in the wastewater and precipitation can be avoided, thereby improving the catalytic oxidation efficiency.

[0035] In a further preferred embodiment of the present utility model, the stirring and diffusion mechanism includes: a rotary joint 17 provided on the can lid 2; a rotating pipe 18 provided at the bottom end of the rotary joint 17; a plurality of stirring blades 19 fixedly installed on the rotating pipe 18; a plurality of shunt pipes 20 provided on the rotating pipe 18; a plurality of shunt holes 21 respectively opened on the plurality of shunt pipes 20; a driving motor 22 fixedly installed on the inner top wall of the can lid 2 and having a driving gear 23; a driven gear 24 fixedly sleeved on the rotating pipe 18 and meshing with the driving gear 23; a water pump 25 provided on the inner wall of the liquid storage tank 3; and a liquid guide pipe 26 provided at the water outlet end of the water pump 25 and communicated with the rotary joint 17.

[0036] In this embodiment, the rotary joint 17 enables the rotating pipe 18 to communicate with the liquid guide pipe 26 when rotating. The driving motor 22, the driving gear 24 and the driven gear 23 can drive the rotating pipe 18, multiple stirring blades 19 and multiple shunt pipes 20 to rotate, so as to stir the wastewater and the heterogeneous catalyst in the reaction tank 1. The water pump 25 can pump out the liquid oxidant (such as hydrogen peroxide) in the liquid storage tank 3 and inject it into the rotating pipe 18 through the liquid guide pipe 26 and the rotary joint 17. The liquid oxidant is evenly diffused into the wastewater in the reaction tank 1 through multiple shunt holes 21 on the multiple shunt pipes 20.

[0037] In a further preferred embodiment of the present utility model, a drain pipe 27 is provided on the reaction tank 1, and a drain valve 28 is provided on the drain pipe 27.

[0038] In this embodiment, the wastewater in the reaction tank 1 can be discharged through the drain pipe 27, and the on-off of the drain pipe 27 can be controlled through the drain valve 28.

[0039] In a further preferred embodiment of the present utility model, a controller 29 is provided on the liquid storage tank 3. A liquid injection port is provided on the liquid storage tank 3, and a sealing cover is threadedly installed on the liquid injection port.

[0040] In this embodiment, the device can be operated and controlled through the controller 29. The liquid oxidant can be injected into the liquid storage tank 3 through the liquid injection port, and the liquid injection port can be closed through the sealing cover.

[0041] In summary, compared with the related technology, the present device can make the water flow surge upward while stirring the wastewater and the solid catalyst in the reaction tank, so that the solid catalyst can always be suspended in the wastewater, avoiding the precipitation of the solid catalyst. At the same time, the oxidant can be diffused into the wastewater more quickly and evenly, thereby improving the catalytic reaction efficiency.

[0042] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without making creative efforts, combine, add or delete the features in the embodiments of the present invention according to the circumstances or make other adjustments, so as to obtain different technical solutions that essentially do not depart from the concept of the present invention, and these technical solutions also fall within the scope of protection of the present invention.

Claims

1. A catalytic oxidation reactor, characterized in that, Including: A reaction tank with an inlet pipe; A tank cover arranged on the top of the reaction tank; A liquid storage tank fixedly installed at the bottom of the reaction tank; An annular groove opened on the reaction tank; A water flow circulation and surging mechanism arranged on the reaction tank, and the water flow circulation and surging mechanism is used to make the wastewater surge upward; A stirring and diffusion mechanism installed on the tank cover, and the stirring and diffusion mechanism is used to stir the wastewater and the heterogeneous catalyst in the reaction tank and make the oxidant diffuse into the wastewater in the reaction tank.

2. The catalytic oxidation reactor according to claim 1, wherein An annular plate is arranged on the annular groove, a plurality of connecting rods are fixedly installed at the bottom of the annular plate, the bottom ends of the plurality of connecting rods are fixedly installed with the same annular frame, a partition net is arranged on the inner wall of the annular frame, and a plurality of pull rings are fixedly installed on the annular plate.

3. The catalytic oxidation reactor according to claim 1, wherein A plurality of pin holes are opened at the top of the reaction tank, and a plurality of pin blocks are fixedly installed at the bottom of the tank cover, and the plurality of pin blocks are respectively adapted to the plurality of pin holes.

4. The catalytic oxidation reactor according to claim 1, characterized in that, An outlet is opened on the inner wall of the reaction tank, and a filter screen is arranged on the inner wall of the outlet.

5. The catalytic oxidation reactor according to claim 4, wherein, The water flow circulation and surging mechanism includes: A water flow distributor arranged on the inner wall of the bottom of the reaction tank; A circulation pump fixedly installed on the reaction tank, and the water inlet end of the circulation pump is communicated with the outlet; A water guide pipe arranged at the water outlet end of the circulation pump and communicated with the water flow distributor.

6. The catalytic oxidation reactor according to claim 1, wherein The stirring and diffusion mechanism includes: A rotary joint arranged on the tank cover; A rotating pipe arranged at the bottom end of the rotary joint; A plurality of stirring blades fixedly installed on the rotating pipe; A plurality of shunt pipes arranged on the rotating pipe; A plurality of shunt holes respectively opened on the plurality of shunt pipes; A driving motor fixedly installed on the inner wall of the top of the tank cover and provided with a driving gear; A driven gear fixedly sleeved on the rotating pipe and meshed with the driving gear; A water pump arranged on the inner wall of the liquid storage tank; A liquid guide pipe arranged at the water outlet end of the water pump and communicated with the rotary joint.

7. The catalytic oxidation reactor according to claim 1, wherein, A drain pipe is arranged on the reaction tank, and a drain valve is arranged on the drain pipe.

8. The catalytic oxidation reactor according to claim 1, wherein A controller is arranged on the liquid storage tank, a liquid injection port is opened on the liquid storage tank, and a sealing cover is threadedly installed on the liquid injection port.

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