CN218951182U - Complete set of combined device for pretreatment of chemical wastewater - Google Patents
Complete set of combined device for pretreatment of chemical wastewater Download PDFInfo
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- CN218951182U CN218951182U CN202222512318.0U CN202222512318U CN218951182U CN 218951182 U CN218951182 U CN 218951182U CN 202222512318 U CN202222512318 U CN 202222512318U CN 218951182 U CN218951182 U CN 218951182U
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Abstract
The utility model discloses a complete set of combined device for pretreatment of chemical wastewater, which belongs to the technical field of wastewater treatment and comprises the following components: the MVR generator is sequentially connected with the stripping tank and the photo-oxidation catalytic tank; the MVR generator is connected with the preheater, the circulating pump and the steam generator, an electric heating wire is arranged in the shell of the MVR generator, and a residue discharge opening is formed in the bottom of the MVR generator; the upper part of the stripping tank is connected with a waste gas collecting tower; an ultraviolet lamp tube is arranged above the photooxidation catalytic pool, and a catalyst placement layer is arranged below the ultraviolet lamp tube. MVR generator, stripping pond, photooxidation catalysis Chi Sanyuan cooperate in this application, have effectively solved the pretreatment difficult problem that multi-industry multicomponent chemical wastewater has water quality characteristics such as high ammonia nitrogen, high phosphorus, high salt, follow-up biochemistry need not to add water dilution, realizes the large scale retrieval and utilization, has adaptability widely, impact resistance is strong, job stabilization, characteristics such as the security height.
Description
Technical Field
The utility model belongs to the technical field of wastewater treatment, and particularly relates to a complete set of combined device for chemical wastewater pretreatment.
Background
A large amount of wastewater can be generated in the chemical production process, and the chemical wastewater has the water quality characteristics of high ammonia nitrogen, high phosphorus, high salt content, high toxicity and the like, and can directly be discharged into a river to influence the ecological environment of the whole water so as to influence the life of people. The chemical wastewater treatment is mainly divided into three links of pretreatment, biochemical treatment, advanced treatment and recycling.
Currently, a key link for restricting the standard treatment of complex chemical wastewater with high ammonia nitrogen, high phosphorus and high salt content, saving water and reducing emission is the lack of an effective pretreatment technology. The existing sewage treatment device cannot cope with sewage with complex components, and the treatment device is not environment-friendly enough when in use, and the sewage treatment is not thorough, so that the sewage treatment effect is poor.
Disclosure of Invention
In order to solve the problems, the utility model discloses a complete set of chemical wastewater pretreatment combined device, which aims at the water quality characteristics of high ammonia nitrogen, high phosphorus, high salt content and the like of chemical wastewater, on one hand, the main core equipment in the pretreatment stage is optimized, and on the other hand, the complete set of wastewater pretreatment combined device in different chemical industries is formed.
In order to achieve the above purpose, the specific technical scheme of the application is as follows:
the complete combined device for pretreatment of chemical wastewater comprises an MVR generator, a stripping tank and a photo-oxidation catalytic tank, wherein the MVR generator is sequentially connected with the stripping tank and the photo-oxidation catalytic tank; the MVR generator is connected with the preheater, the circulating pump and the steam generator, an electric heating wire is arranged in the shell of the MVR generator, and a residue discharge opening is formed in the bottom of the MVR generator; the upper part of the stripping tank is connected with a waste gas collecting tower; an ultraviolet lamp tube is arranged above the photooxidation catalytic pool, and a catalyst placement layer is arranged below the ultraviolet lamp tube.
Based on the technical characteristics, further, the upper part of the stripping tank is provided with spray pipes, the bottom of the stripping tank is provided with aeration pipes, the aeration pipes are connected with an air compressor, and 3 aeration pipes are distributed in parallel.
Based on the technical characteristics, further, the aeration pipe is provided with evenly distributed holes, the diameter of each hole is 10mm, and the distance between the holes is 50mm.
Based on the technical characteristics, the stripping tank is further provided with a PH value detector.
Based on the technical characteristics, further, a penetrating rotating shaft is arranged at the bottom of the photo-oxidation catalytic tank, the rotating shaft is connected with a driving motor, and stirring blades are arranged on the rotating shaft.
Based on the technical characteristics, further, the stirring blades on the rotating shaft are not less than 2 groups.
Based on the technical characteristics, further, the blowing-off tank and the photo-oxidation catalytic tank are both provided with a circulating pump outside to be connected with a water inlet pipeline.
Compared with the prior art, the beneficial effects of this application are:
aiming at the water quality characteristics of high ammonia nitrogen, high phosphorus, high salt content and the like of multi-component chemical wastewater, complete equipment of MVR generator desalting, high-efficiency stripping tank ammonia nitrogen removal and oxidation coagulation dephosphorization is adopted, so that a complete combined device for pretreatment and emission reduction of the chemical wastewater based on core equipment is formed; effectively solves the pretreatment problems of wastewater in fine chemical industry such as medicines, pesticides and the like, coal chemical industry and the like, does not need to be diluted by adding water in subsequent biochemistry, and realizes large-scale recycling.
The existing oxidation catalytic pool has poor oxidation effect and harsh reaction conditions, and the photo-oxidation catalytic pool is adopted in the method, namely the photo-oxidation method and the catalyst are adopted to decompose organic matters in the wastewater by utilizing the synergistic oxidation effect of ultraviolet light and the catalyst, so that the wastewater is purified, the method for continuously generating high-density strong-oxidability free radicals in a normal-pressure system is realized, compared with the prior oxidation technology, the organic matter removal rate is obviously improved, the reaction time is greatly shortened, the reaction is carried out at normal temperature and normal pressure, and the treatment cost of each ton of wastewater is saved.
The MVR generator, the stripping tank and the photo-oxidation catalysis Chi Sanyuan cooperate to solve the effect amplification effect of wastewater treatment and the treatment problem that multicomponent chemical wastewater has the water quality characteristics of high ammonia nitrogen, high phosphorus, high salt content and the like. The wastewater pretreatment complete set combined device has the characteristics of wide adaptability, strong shock resistance, stable work, high safety and the like.
Drawings
FIG. 1 is a schematic structural view of a complete combination device for pretreatment of chemical wastewater;
FIG. 2 is a schematic diagram of the aeration pipe structure of the stripping tank in the complete combined device for pretreatment of chemical wastewater;
FIG. 3 is a schematic view of a partial structure of an photooxidation catalytic pond in a complete combination device for pretreatment of chemical wastewater;
list of drawing identifiers:
1. an MVR generator; 11. a first liquid inlet; 12. a second liquid outlet; 13. a first liquid outlet; 14. heating wires; 15. a residue discharge port; 2. blowing off the pool; 21. a water spray pipe; 22. an aeration pipe; 23. an eyelet; 24. a pH detector; 3. a photo-oxidation catalytic pool; 31. an ultraviolet lamp tube; 32. a catalyst placement layer; 33. a rotating shaft, 34, and stirring blades; 4. an exhaust gas collection tower; 5. a preheater; 6. a circulation pump; 7. A steam generator; 8. a motor; 9. an air compressor.
Description of the embodiments
The utility model will be further elucidated with reference to the following figures 1-3 and specific embodiments, which should be understood as being merely illustrative of the utility model and not limiting the scope thereof.
It should be noted that the words "upper", "lower", "left", "right", "bottom" and "top" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
As shown in fig. 1, the complete combined device for pretreatment of chemical wastewater comprises an MVR generator 1, a stripping tank 2 and a photo-oxidation catalytic tank 3, wherein the MVR generator 1 is connected with the stripping tank 2 and the photo-oxidation catalytic tank 3 through water pipes in sequence. A first liquid inlet 11 is formed in one side of the MVR generator 1, a water pipe connected with the first liquid inlet 11 is connected with a preheater 5, and the preheater 5 preheats wastewater entering the MVR generator 1; a second liquid outlet 12 is arranged below the first liquid inlet 11, and a water pipe connected with the second liquid outlet 12 is provided with a circulating pump 6 and a steam generator 7 and is finally connected with the water pipe connected with the first liquid inlet 11. The second liquid outlet 12 is used for compressing secondary steam generated in the evaporation process, and then returns to the MVR generator 1 to be used as heating steam, so that the salt is efficiently removed, and the environment is protected and energy is saved.
An electric heating wire 14 is arranged in the shell of the MVR generator 1 and is used for heating the wastewater in the MVR generator to keep the wastewater in a boiling state; and a stirring assembly is arranged in the MVR generator, and the stirring assembly is connected with a motor for power supply work of the stirring assembly. The MVR generator 1 bottom is equipped with residue discharge opening 15, and after the reaction in the MVR reactor was accomplished, the separation of reaction residue and waste water can be accomplished to the separation blade of opening residue discharge opening 15, and MVR generator 1 bottom is the funnel type, does benefit to the residue separation.
The MVR generator 1 is provided with a first liquid outlet 13 and is connected with the stripping tank 2, the waste gas collecting tower 4 is connected above the stripping tank 2, the waste gas collecting tower 4 is used for collecting waste gas generated in the stripping process, the waste gas is prevented from polluting the environment, and the collected waste gas is subjected to further purification reaction to reach the emission standard.
As shown in fig. 1, a spray pipe 21 is arranged on the top surface of the stripping tank 2, and an aerator pipe 22 is arranged at the bottom of the stripping tank 2. The spray pipe circularly blows off the waste water in the pool 2, so that the waste water is fully contacted with air. The preferred stripping cell 2 is 1.5m deep and 6m long.
As shown in fig. 2, 3 aeration pipes 22 are arranged in parallel at the bottom, the aeration pipes 22 are provided with holes 23 distributed at equal intervals, the diameter of the holes 23 is 10mm, and the hole interval is 50mm.
The aeration pipe 22 is connected with the air compressor 9, and when the device works, the aeration intensity is 20-30 nVm m, the air-water ratio is 5, the air stripping time is 30 minutes, and gases such as ammonia nitrogen and other volatile substances dissolved in the wastewater are removed.
The photo-oxidation catalytic pool 3 top is equipped with ultraviolet tube 31, and preferred ultraviolet tube 31 is equipped with many, ultraviolet tube 31 below is equipped with catalyst placement layer 32, catalyst placement layer 32 below is equipped with the pivot 33 that runs through, motor 8 is connected to pivot 33.
As shown in fig. 3, the stirring blades 34 are disposed on the rotating shaft, and preferably, the stirring blades 34 are not less than two groups.
After the wastewater enters the photo-oxidation catalytic pool 3, a photo-oxidation method and a catalyst are adopted to continuously generate high-density strong-oxidability free radicals in a normal pressure system by utilizing ultraviolet light and the catalyst, and the organic matters in the wastewater are decomposed by the synergistic oxidation effect, so that the wastewater is purified, the mixing effect of the catalyst and the wastewater is effectively improved by the stirring blade of the rotating shaft, the photo-oxidation catalytic effect is more uniform and thorough, compared with the prior art, the organic matter removal rate is obviously improved, the reaction time is greatly shortened, the general reaction time only needs a few minutes, the reaction is carried out at normal temperature and normal pressure, the treatment cost of each ton of wastewater is saved, and the treatment cost of each ton of wastewater is saved by 5-10 yuan.
In conclusion, MVR generator, stripping tank, photooxidation catalysis Chi Sanyuan cooperate in this application, have effectively solved the pretreatment difficult problem that industry multicomponent chemical wastewater such as fine chemical industry such as medicine, pesticide, coal industry have water quality characteristics such as high ammonia nitrogen, high phosphorus, high salt, follow-up biochemistry need not to add water dilution, realize the large scale retrieval and utilization, have adaptability widely, impact resistance is strong, job stabilization, characteristics such as the security height.
It should be noted that the drawings merely illustrate the technical idea of the utility model and the shape is not intended to limit the scope of the utility model, and those skilled in the art can make several improvements and modifications without departing from the principles of the utility model, which fall within the scope of the claims of the utility model.
Claims (7)
1. The utility model provides a chemical industry wastewater pretreatment integrated equipment which characterized in that: the device comprises an MVR generator, a stripping tank and a photo-oxidation catalytic tank, wherein the MVR generator is sequentially connected with the stripping tank and the photo-oxidation catalytic tank; the MVR generator is connected with the preheater, the circulating pump and the steam generator, an electric heating wire is arranged in the shell of the MVR generator, and a residue discharge opening is formed in the bottom of the MVR generator; the upper part of the stripping tank is connected with a waste gas collecting tower; an ultraviolet lamp tube is arranged above the photooxidation catalytic pool, and a catalyst placement layer is arranged below the ultraviolet lamp tube.
2. The chemical wastewater pretreatment kit according to claim 1, wherein: the upper part of the stripping tank is provided with spray pipes, the bottom of the stripping tank is provided with aeration pipes, the aeration pipes are connected with an air compressor, and 3 aeration pipes are distributed in parallel.
3. The chemical wastewater pretreatment kit according to claim 2, wherein: the aerator pipe is provided with evenly distributed holes, the diameter of each hole is 10mm, and the distance between the holes is 50mm.
4. The chemical wastewater pretreatment kit according to claim 2, wherein: the stripping tank is provided with a PH value detector.
5. The chemical wastewater pretreatment kit according to claim 1, wherein: the bottom of the photo-oxidation catalytic tank is provided with a penetrating rotating shaft, the rotating shaft is connected with a driving motor, and stirring blades are arranged on the rotating shaft.
6. The complete combination device for pretreatment of chemical wastewater according to claim 5, wherein: the stirring blades on the rotating shaft are not less than 2 groups.
7. The chemical wastewater pretreatment kit according to claim 1, wherein: and circulating pumps are arranged outside the stripping tank and the photo-oxidation catalytic tank and are connected with a water inlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222512318.0U CN218951182U (en) | 2022-09-22 | 2022-09-22 | Complete set of combined device for pretreatment of chemical wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222512318.0U CN218951182U (en) | 2022-09-22 | 2022-09-22 | Complete set of combined device for pretreatment of chemical wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218951182U true CN218951182U (en) | 2023-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222512318.0U Active CN218951182U (en) | 2022-09-22 | 2022-09-22 | Complete set of combined device for pretreatment of chemical wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218951182U (en) |
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2022
- 2022-09-22 CN CN202222512318.0U patent/CN218951182U/en active Active
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