Up-flow fluidized bed ECO reactor
Through the fluidized bed technology of upflow fluidized bed ECO reactor and the drawer-type bed design, the plate scale is polished under aeration using spherical catalyst, combined with water pump spray and defoaming, the plate scale is solved and The problem of foam cleaning has achieved efficient and environmentally friendly electrocatalytic treatment.
Patent Information
- Application Number
- CN202323620420.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-28
AI Technical Summary
After a long period of operation of traditional electrocatalytic technology, the plates are prone to scaling problems. The existing cleaning methods require additional devices and affect the treatment effect. The traditional physical and chemical methods and biochemical methods have poor effect on treating difficult-to-degrade wastewater.
Adopt the upflow fluidized bed ECO reactor, and use fluidized bed technology to micro-friction clean the anode plate under aeration through spherical catalysts. Combined with vertical plastic plates and drawer bed design to avoid chemical descaling agents and clean the resulting foam through water pump and atomizing nozzle.
It realizes green and environmentally friendly plate cleaning, avoids corrosion and damage, improves the electrocatalytic treatment effect, extends the catalyst activity life, and efficiently cleans up foam in wastewater.
Smart Images
Figure CN222181914U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fluidized beds, in particular to an upflow type fluidized bed ECO reactor. Background Art
[0002] Refractory wastewater mainly comes from industrial wastewater from industries such as landfill leachate, papermaking, pharmaceuticals, and petroleum refining. It has complex components, contains toxic and harmful pollutants, and has a large discharge volume. If it is not effectively treated, it will seriously damage the ecological environment and endanger human health. The use of traditional physical and chemical methods to treat refractory wastewater is prone to secondary pollution due to the excessive addition of chemical reagents; and the biochemical method is not suitable for direct treatment of refractory wastewater because microorganisms are easily inactivated in refractory wastewater. Therefore, it is difficult to achieve ideal treatment effects by using traditional physical, chemical, and biochemical technologies to treat refractory wastewater.
[0003] Electrocatalytic technology uses active substances generated by interfacial electron gain and loss to degrade organic pollutants and achieve the purpose of sewage purification. Electrocatalytic treatment technology has the following advantages: (1) No external reagents are required, which can avoid secondary pollution; (2) The reaction conditions are mild and the reaction can occur at room temperature and pressure; (3) Organic matter is removed by the anode and heavy metals are reduced by the cathode.
[0004] Although the current plates are excellent in treating wastewater, after long-term operation, the cathode plates will scale, which seriously affects the electrocatalytic degradation effect. The conventional solutions are mechanical cleaning or acid cleaning. Both cleaning methods require additional new equipment and require the electrocatalytic reaction to be suspended before cleaning the plates, which is not only expensive but also reduces the electrocatalytic treatment effect.
[0005] Therefore, in order to address the industry pain point of the difficulty in cleaning the ECO plate fouling, an upflow fluidized bed ECO reactor was proposed that uses a fluidized granular catalyst to perform micro-friction cleaning of the plate. Utility Model Content
[0006] The purpose of the utility model is to provide an upflow fluidized bed ECO reactor to solve the problems raised in the above background technology.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an upflow fluidized bed ECO reactor, comprising a fluidized bed and a drawer-type bed layer, a drawer-type bed layer is arranged below the fluidized bed, the drawer-type bed layer comprises a frame, a travel switch, a through hole, a slot, a drawer box, a panel, a catalyst slot and a mesh, a travel switch is arranged at the right end inside the frame, and through holes are correspondingly provided at the upper and lower ends of the middle part of the frame, a slot is provided at the left end of the frame, and the slot is slidably fitted with a drawer box through a sealing pad, a panel is integrally fixed to the front of the drawer box, a catalyst slot is provided in the middle of the drawer box, and a mesh is laid at the bottom of the catalyst slot.
[0008] Furthermore, an aeration pipe is provided at the bottom of the fluidized bed, and the aeration pipe is connected to the output end of the blower.
[0009] Furthermore, a water inlet is arranged at the bottom of the left side of the fluidized bed, and a drainage pipe is arranged at the top of the left side of the fluidized bed.
[0010] Furthermore, cathode and anode plates are arranged below the fluidized bed, and the cathode and anode plates enable the spherical catalysts on the surface thereof to move, grind and scale under the action of aeration.
[0011] Furthermore, circulation pipes are provided at the upper and lower ends of the anode and cathode plates respectively, and a circulation pump is provided in the middle of the circulation pipes.
[0012] Furthermore, a vertical plastic plate is arranged in the middle of the fluidized bed, and the gap between adjacent vertical plastic plates is smaller than the catalyst particle size.
[0013] Furthermore, a water pump is fixedly installed above the fluidized bed, and the water pump draws water from the bottom and sprays it from above through an atomizing nozzle to achieve defoaming.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] 1. When the utility model is in use, the present application utilizes fluidized bed technology to clean the scale on the surface of the anode and cathode plates. The fluidized bed is a reactor that utilizes gas or liquid to pass through a granular solid layer to put the solid particles into a suspended motion state, and to carry out a gas-solid phase reaction process or a liquid-solid phase reaction process. When in use, there are spherical catalysts between the anode and cathode plates. Under the action of aeration, the spherical catalysts will move and grind off the stains loaded on the surface of the anode. Compared with the prior art of using chemical descaling agents to descale the plates, it is more environmentally friendly and has a good descaling effect, while avoiding corrosion damage to the anode and cathode plates.
[0016] 2. When the utility model is in use, the vertical plastic plate in the middle layer of the fluidized bed prevents the dense catalyst from being washed out under the action of aeration, and the drawer-type bed layer arranged in the lower layer of the fluidized bed is used to replace the catalyst. After the aeration is stopped, the catalyst falls down and is trapped in the hole net in the middle of the drawer box. The user can replace the spherical catalyst in the catalyst tank by pulling the drawer box out of the slide slot to ensure the activity of the catalyst.
[0017] 3. When the utility model is in use, wastewater will produce foam under the action of electrocatalysis, and the foam will float to the upper layer of the fluidized bed. The present application implements efficient cleaning of the foam by fixing a water pump above the fluidized bed, which pumps water from the bottom and sprays it from above through an atomizing nozzle. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the overall internal structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of the drawer-type bed layer of the utility model;
[0020] Figure 3 This is a schematic diagram of the external structure of the drawer-type bed layer of the utility model.
[0021] In the figure: 1. fluidized bed; 2. aeration pipe; 3. blower; 4. drawer-type bed layer; 401. frame; 402. travel switch; 403. through hole; 404. slot; 405. drawer box; 406. panel; 407. catalyst tank; 408. mesh; 5. water inlet; 6. drain pipe; 7. cathode and anode plates; 8. circulation pipe; 9. circulation pump; 10. vertical plastic plate; 11. water pump; 12. atomizing nozzle. DETAILED DESCRIPTION
[0022] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.
[0023] like Figures 1 to 3As shown, an upflow fluidized bed ECO reactor includes a fluidized bed 1 and a drawer-type bed layer 4, an aeration pipe 2 is arranged at the bottom end of the fluidized bed 1, and the aeration pipe 2 is connected to the output end of the blower 3, a drawer-type bed layer 4 is arranged below the fluidized bed 1, and the drawer-type bed layer 4 includes a frame 401, a travel switch 402, a through hole 403, a slot 404, a drawer box 405, a panel 406, a catalyst slot 407 and a mesh 408, a travel switch 402 is arranged at the right end of the frame 401, and through holes 403 are correspondingly opened at the upper and lower ends of the middle part of the frame 401, a slot 404 is opened at the left end of the frame 401, and the slot 404 is sealed The rubber pad is slidably matched with a drawer box 405, a panel 406 is integrally fixed to the front of the drawer box 405, a catalyst groove 407 is provided in the middle of the drawer box 405, and a mesh 408 is laid at the bottom of the catalyst groove 407. The vertical plastic plate 10 in the middle layer of the fluidized bed 1 is used to prevent the dense catalyst from being washed out under the action of aeration, and the drawer-type bed layer 4 arranged in the lower layer of the fluidized bed 1 is used to replace the catalyst. After the aeration is stopped, the catalyst falls down and is trapped in the mesh 408 in the middle of the drawer box 405. The user can replace the spherical catalyst in the catalyst groove 407 by pulling the drawer box 405 out of the slide slot to ensure the activity of the catalyst;
[0024] like Figure 1 As shown, a water inlet 5 is provided at the bottom left side of the fluidized bed 1, and a drain pipe 6 is provided at the top left side of the fluidized bed 1, and anode and cathode plates 7 are provided below the fluidized bed 1, and the anode and cathode plates 7 are aerated so that the spherical catalyst is located on the surface thereof and moves to grind and scale. The present application utilizes the fluidized bed 1 technology to clean the scale on the surface of the anode and cathode plates 7. The fluidized bed 1 is a reactor that utilizes gas or liquid to pass through a granular solid layer to make the solid particles in a suspended motion state and to perform a gas-solid phase reaction process or a liquid-solid phase reaction process. When in use, there is a spherical catalyst between the anode and cathode plates 7. Under the action of aeration, the spherical catalyst will move to grind off the stains loaded on the surface of the anode. Compared with the prior art that uses chemical descaling agents to descale the plates, this method is more environmentally friendly and has a good descaling effect, while also avoiding corrosion damage to the anode and cathode plates 7. Circulation pipes 8 are correspondingly arranged at the upper and lower ends of the anode and cathode plates 7, and a circulation pump 9 is arranged in the middle of the circulation pipe 8. A water pump 11 is fixedly installed above the fluidized bed 1, and the water pump 11 pumps water from the bottom and sprays from the top through an atomizing nozzle 12 to achieve foam removal. The wastewater will produce foam under the action of electrocatalysis, and the foam will float to the upper layer of the fluidized bed 1. The present application achieves efficient cleaning of the foam by fixing a water pump 11 above the fluidized bed 1, and the water pump 11 pumps water from the bottom and sprays from the top through an atomizing nozzle 12 to achieve foam removal.
[0025] Working principle: When using this kind of upflow fluidized bed ECO reactor, the present application utilizes fluidized bed 1 technology to clean the scale on the surface of the anode and cathode plates 7. The fluidized bed 1 is a reactor that utilizes gas or liquid to pass through a granular solid layer to put the solid particles in a suspended motion state and conduct a gas-solid phase reaction process or a liquid-solid phase reaction process. When in use, there is a spherical catalyst between the anode and cathode plates 7. Under the action of aeration, the spherical catalyst will move and grind off the stains loaded on the surface of the anode. Compared with the prior art of using chemical descaling agents to descale the plates, it is more environmentally friendly and has a good descaling effect, while avoiding corrosion damage to the anode and cathode plates 7. The vertical layer of the fluidized bed 1 The plastic plate 10 is to prevent the dense catalyst from being washed out by aeration, and the drawer-type bed layer 4 arranged at the lower layer of the fluidized bed 1 is used to replace the catalyst. After the aeration is stopped, the catalyst falls down and is trapped in the hole mesh 408 in the middle of the draw box 405. The user can replace the spherical catalyst in the catalyst tank 407 by pulling the draw box 405 out of the slide to ensure the activity of the catalyst. The wastewater will produce foam under the action of electrocatalysis, and the foam will float to the upper layer of the fluidized bed 1. The present application achieves efficient cleaning of the foam by fixing a water pump 11 above the fluidized bed 1. The water pump 11 pumps water from the bottom and sprays from the top through the atomizing nozzle 12.
[0026] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
Claims
1. An upflow fluidized bed ECO reactor, It is characterized in that The invention comprises a fluidized bed (1) and a drawer-type bed layer (4), wherein the drawer-type bed layer (4) is arranged below the fluidized bed (1), and the drawer-type bed layer (4) comprises a frame (401), a travel switch (402), a through hole (403), a slot (404), a drawer box (405), a panel (406), a catalyst groove (407) and a mesh (408). The right end of the frame (401) is provided with a travel switch (402), and the middle of the frame (401) is provided with through holes (403) at the upper and lower ends thereof, the left end of the frame (401) is provided with a slot (404), and the slot (404) is slidably matched with the drawer box (405) via a sealing rubber pad, the front of the drawer box (405) is integrally fixed with a panel (406), the middle of the drawer box (405) is provided with a catalyst groove (407), and the bottom of the catalyst groove (407) is paved with a mesh (408).
2. The upflow fluidized bed ECO reactor according to claim 1, It is characterized in that An aeration pipe (2) is arranged at the bottom of the fluidized bed (1), and the aeration pipe (2) is connected to the output end of the blower (3).
3. The upflow fluidized bed ECO reactor according to claim 1, It is characterized in that A water inlet (5) is provided at the bottom of the left side of the fluidized bed (1), and a drainage pipe (6) is provided at the top of the left side of the fluidized bed (1).
4. The upflow fluidized bed ECO reactor according to claim 1, It is characterized in that Anode and cathode plates (7) are arranged below the fluidized bed (1), and under the action of aeration, the cathode and cathode plates (7) cause the spherical catalysts on the surface thereof to move, grind and scale.
5. The upflow fluidized bed ECO reactor according to claim 4, It is characterized in that Circulation pipes (8) are correspondingly arranged at the upper and lower ends of the anode and cathode plates (7), and a circulation pump (9) is arranged in the middle of the circulation pipe (8).
6. The upflow fluidized bed ECO reactor according to claim 1, It is characterized in that A vertical plastic plate (10) is arranged in the middle of the fluidized bed (1), and the gap between adjacent vertical plastic plates (10) is smaller than the catalyst particle size.
7. The upflow fluidized bed ECO reactor according to claim 1, It is characterized in that A water pump (11) is fixedly installed above the fluidized bed (1), and the water pump (11) draws water from the bottom and sprays it from above via an atomizing nozzle (12) to achieve defoaming.