CN110627280B - Wet flue gas desulfurization waste water multi-stage treatment device - Google Patents
Wet flue gas desulfurization waste water multi-stage treatment device Download PDFInfo
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- CN110627280B CN110627280B CN201910798024.9A CN201910798024A CN110627280B CN 110627280 B CN110627280 B CN 110627280B CN 201910798024 A CN201910798024 A CN 201910798024A CN 110627280 B CN110627280 B CN 110627280B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a multistage treatment device for wet desulphurization wastewater, which is connected to one side of a desulphurization tower and comprises a plurality of reaction cylinders with open tops, a plurality of recovery cylinders with the reaction cylinders connected through a guide pipe, a filter device connected between adjacent reaction cylinders and a first pump body. The top cover of the top opening of the reaction cylinder is provided with a feeding nozzle, and calcium compounds can be added into the reaction cylinder from the feeding nozzle. Filter equipment connects on the faucet, and the flocculent calcium sulfate of production can be detained in the reaction cylinder, and free sulfate ion can get into next reaction cylinder in, adds the sulfate ion that calcium compound can fully absorb the waste water many times like this, absorptive relatively thoroughly, can acquire the clear water that accords with the emission requirement at last. Calcium sulfate staying in the reaction cylinders is pumped into the recovery cylinder through the second pump body, and the calcium sulfate in the reaction cylinders can be recovered in a centralized manner.
Description
Technical Field
The invention relates to the technical field of industrial wastewater treatment, in particular to a multistage treatment device for wet desulphurization wastewater.
Background
Wet desulfurization is frequently used in industrial production sites to remove sulfur compounds from industrial waste gases, but also produces a large amount of industrial waste water, which needs to be further treated for discharge, or causes environmental pollution, and untreated waste water flowing into rivers kills aquatic organisms. At present, a plurality of wastewater treatment modes are available, but the treatment efficiency is not high, and the effect of recycling sulfur cannot be achieved. In the process of wet desulphurization of industrial waste gas, quicklime is generally adopted to absorb sulfur in the waste gas, the waste water contains a large amount of calcium ions and sulfate ions, when the waste water is treated, a calcium compound can be added into the waste water to prepare calcium sulfate, the usage amount of the calcium sulfate as gypsum is large, and the recovered sulfur has certain market value. In view of the above problems, we have invented a multi-stage treatment device for wet desulfurization wastewater, the desulfurization wastewater enters into the treatment device, calcium compound is added into the treatment device, sulfate ions in the wastewater are fully combined with calcium ions to produce flocculent calcium sulfate, the calcium sulfate is filtered out and evaporated to obtain gypsum with a certain purity.
Disclosure of Invention
The invention provides a multistage treatment device for wet desulphurization wastewater, wherein the desulphurization wastewater enters the treatment device, a calcium compound is added into the treatment device, sulfate ions in the wastewater are fully combined with calcium ions to generate flocculent calcium sulfate, and the calcium sulfate is filtered out and evaporated to obtain water so as to obtain gypsum with certain purity.
The technical scheme of the invention is realized as follows: a multi-stage treatment device for wet desulphurization wastewater is connected to one side of a desulphurization tower and comprises a plurality of reaction cylinders with open tops, a plurality of recovery cylinders with the reaction cylinders connected through a guide pipe, a filter device connected between adjacent reaction cylinders and a first pump body; a top cover is arranged at the top opening of the reaction cylinder, and a feeding nozzle and an exhaust nozzle are arranged on the top cover; the lower half part of the reaction cylinder is respectively provided with a water inlet nozzle and a water outlet nozzle towards two sides, and the filtering device is connected to the water outlet nozzle; one port of the first pump body is connected to the filtering device, and the other port of the first pump body is connected with a water inlet nozzle of an adjacent reaction cylinder through a liquid guide pipe; the desulfurizing tower is connected with a water inlet nozzle of the most front reaction cylinder through a water guide pipe; a discharge nozzle is further arranged at the bottom of the front side of the reaction cylinder, and is connected with a second pump body which is connected with the guide pipe; the upper half part of the side wall of the recovery cylinder is provided with a plurality of feed inlets, and the guide pipe is connected to the feed inlets; the material discharge opening is formed in the bottom of the side wall of the recovery cylinder, and a first switch valve is installed on the material discharge opening.
Further, a feed hopper is connected to the feed nozzle.
Further, a second switch valve is connected between the feeding nozzle and the feeding hopper.
Furthermore, the filtering device comprises a connecting cylinder and a filtering sheet arranged in the connecting cylinder.
Furthermore, two sides of the connecting cylinder are respectively provided with a connecting nozzle, and a pair of connecting nozzles are respectively connected with the water outlet nozzle of the reaction cylinder and the first pump body.
Further, the connecting cylinder is provided with a mounting opening from the top surface, the filter sheet penetrates through the mounting opening and then is connected with a fixing plate, and the mounting opening can be sealed by the fixing plate.
Further, a third on-off valve is connected between the discharge nozzle and the second pump body.
Further, a heating barrel is installed at the bottom of the recovery barrel, and a heating plate is arranged in the heating barrel.
By adopting the technical scheme, the invention has the beneficial effects that:
the invention relates to a multistage treatment device for wet desulphurization wastewater, which is connected to one side of a desulphurization tower and comprises a plurality of reaction cylinders with open tops, a plurality of recovery cylinders with the reaction cylinders connected through a guide pipe, a filtering device connected between adjacent reaction cylinders and a first pump body. The top cover of the top opening of the reaction cylinder is provided with a feeding nozzle, and calcium compounds can be added into the reaction cylinder from the feeding nozzle. Filter equipment connects on the faucet, and the flocculent calcium sulfate of production can be detained in the reaction cylinder, and free sulfate ion can get into next reaction cylinder in, adds the sulfate ion that calcium compound can fully absorb the waste water many times like this, absorptive relatively thoroughly, can acquire the clear water that accords with the emission requirement at last. Calcium sulfate staying in the reaction cylinders is pumped into the recovery cylinder through the second pump body, and the calcium sulfate in the reaction cylinders can be recovered in a centralized manner.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the split structure of the present invention;
FIG. 3 is a schematic diagram of a disassembled structure of the reaction cartridge and the filtering device of the present invention;
wherein: 1. the desulfurization tower comprises a desulfurization tower, 2. a reaction cylinder, 3. a guide pipe, 4. a recovery cylinder, 5. a first pump body, 6. a top cover, 7. a feeding nozzle, 8. an exhaust nozzle, 9. a water inlet nozzle, 10. a water outlet nozzle, 11. a liquid guide pipe, 12. a water guide pipe, 13. a discharging nozzle, 14. a second pump body, 15. a feeding hole, 16. a discharging hole, 17. a first switch valve, 18. a feeding hopper, 19. a second switch valve, 20. a connecting cylinder, 21. a filter sheet, 22. a connecting nozzle, 23. a mounting hole, 24. a fixing plate, 25. a third switch valve, 26. a heating cylinder and 27. a heating disc.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, 2 and 3, a multistage treatment device for wet desulfurization wastewater, which is connected to one side of a desulfurization tower 1, comprises a plurality of reaction cylinders 2 with open tops, a plurality of recovery cylinders 4 with the reaction cylinders 2 connected through a conduit 3, and a filtering device and a first pump body 5 connected between the adjacent reaction cylinders 2; a top cover 6 is installed at the top opening of the reaction cylinder 2, and a feeding nozzle 7 and an exhaust nozzle 8 are arranged on the top cover 6; the lower half part of the reaction cylinder 2 is respectively provided with a water inlet nozzle 9 and a water outlet nozzle 10 towards two sides, and the filtering device is connected to the water outlet nozzle 10; one port of the first pump body 5 is connected to the filtering device, and the other port is connected with the water inlet nozzle 9 of the adjacent reaction cylinder 2 through a liquid guide pipe 11; the desulfurizing tower 1 is connected with a water inlet nozzle 9 of the most front reaction cylinder 2 through a water guide pipe 12; a discharge nozzle 13 is further arranged at the bottom of the front side of the reaction cylinder 2, a second pump body 14 is connected to the discharge nozzle 13, and the second pump body 14 is connected with the guide pipe 3; the upper half part of the side wall of the recovery cylinder 4 is provided with a plurality of feed inlets 15, and the guide pipe 3 is connected to the feed inlets 15; a material outlet 16 is formed in the bottom of the side wall of the recovery cylinder 4, and a first switch valve 17 is mounted on the material outlet 16.
The feeding mouth 7 of this embodiment is connected with a feeding hopper 18, and a second switch valve 19 is further connected between the feeding mouth 7 and the feeding hopper 18. The calcium compound can be conveniently added into the reaction cylinder 2 through the feed hopper 18, and the addition amount can be flexibly controlled through the second switch valve 19.
The filter device of the embodiment comprises a connecting cylinder 20 and a filter sheet 21 installed in the connecting cylinder 20, wherein two sides of the connecting cylinder 20 are respectively provided with a connecting nozzle 22, and a pair of connecting nozzles 22 are respectively connected with the water outlet nozzle 10 of the reaction cylinder 2 and the first pump body 5. The connecting cylinder 20 is provided with a mounting opening 23 from the top surface, the filter sheet 21 is connected with a fixing plate 24 after penetrating through the mounting opening, and the fixing plate 24 can seal the mounting opening 23. The filter 21 in the connecting cylinder 20 functions to filter flocculent calcium sulfate, and the filter 21 can be drawn out from the mounting port 23 for replacing after a certain period of time.
A third on/off valve 25 is connected between the discharge nozzle 13 and the second pump body 14 in the present embodiment. After the third switch valve 25 is opened, the remaining flocculent calcium sulfate in the reaction cylinder 2 can be filtered,
the heating cylinder 26 is installed at the bottom of the recovery cylinder 4 of the embodiment, and a heating plate 27 is arranged in the heating cylinder 26. The heating cylinder 26 can be used for heating the recovery cylinder 4, and flocculent calcium sulfate in the recovery cylinder 4 can be evaporated for removing water, so that gypsum with certain purity can be obtained.
The invention relates to a multistage treatment device for wet desulphurization wastewater, which is connected with one side of a re-desulphurization tower 1 and comprises a plurality of reaction cylinders 2 with open tops, a plurality of recovery cylinders 4 with the reaction cylinders 2 connected through a guide pipe 3, a filtering device connected between the adjacent reaction cylinders 2 and a first pump body 5. A feeding nozzle 7 is arranged on a top cover 6 of the top opening of the reaction cylinder 2, and calcium compounds can be added into the reaction cylinder 2 from the feeding nozzle 7. Filter equipment connects on faucet 10, and the flocculent calcium sulfate of production can be detained in reaction cylinder 2 in the reaction cylinder 2, and free sulfate ion can get into next reaction cylinder 2 in, adds the sulfate ion that calcium compound can fully absorb the waste water like this many times, absorptive relatively thoroughly, can acquire the clear water that accords with the emission requirement at last. Calcium sulfate retained in the reaction cylinders 2 is pumped into the recovery cylinder 4 by the second pump body 14, and the calcium sulfate in the reaction cylinders 2 can be recovered in a centralized manner.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (1)
1. A multistage treatment device for wet desulphurization wastewater is characterized in that the treatment device is connected to one side of a desulphurization tower (1), and comprises a plurality of reaction cylinders (2) with open tops, a plurality of recovery cylinders (4) with the reaction cylinders (2) connected through a guide pipe (3), a filtering device connected between the adjacent reaction cylinders (2) and a first pump body (5); a top cover (6) is installed at the top opening of the reaction cylinder (2), and a feeding nozzle (7) and an exhaust nozzle (8) are arranged on the top cover (6); a water inlet nozzle (9) and a water outlet nozzle (10) are respectively arranged on the lower half part of the reaction cylinder (2) towards two sides, and the filtering device is connected to the water outlet nozzle (10); one port of the first pump body (5) is connected to the filtering device, and the other port of the first pump body is connected with a water inlet nozzle (9) of the adjacent reaction cylinder (2) through a liquid guide pipe (11); the desulfurizing tower (1) is connected with a water inlet nozzle (9) of the most front reaction cylinder (2) through a water guide pipe (12); a discharge nozzle (13) is further arranged at the bottom of the front side of the reaction cylinder (2), a second pump body (14) is connected to the discharge nozzle (13), and the second pump body (14) is connected with the guide pipe (3); the upper half part of the side wall of the recovery cylinder (4) is provided with a plurality of feed inlets (15), and the guide pipe (3) is connected to the feed inlets (15); a discharge outlet (16) is formed in the bottom of the side wall of the recovery cylinder (4), and a first switch valve (17) is mounted on the discharge outlet (16);
the feeding mouth (7) is connected with a feeding hopper (18);
a second switch valve (19) is connected between the feeding nozzle (7) and the feeding hopper (18);
the filtering device comprises a connecting cylinder (20) and a filter sheet (21) arranged in the connecting cylinder (20);
two sides of the connecting cylinder (20) are respectively provided with a connecting nozzle (22), and a pair of connecting nozzles (22) are respectively connected with the water outlet nozzle (10) of the reaction cylinder (2) and the first pump body (5);
the connecting cylinder (20) is provided with a mounting opening (23) from the top surface, the filter sheet (21) is connected with a fixing plate (24) after penetrating through the mounting opening (23), and the fixing plate (24) can seal the mounting opening (23);
a third on-off valve (25) is connected between the discharge nozzle (13) and the second pump body (14);
a heating cylinder (26) is installed to recovery drum (4) bottom, be provided with heating plate (27) in heating cylinder (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910798024.9A CN110627280B (en) | 2019-08-27 | 2019-08-27 | Wet flue gas desulfurization waste water multi-stage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910798024.9A CN110627280B (en) | 2019-08-27 | 2019-08-27 | Wet flue gas desulfurization waste water multi-stage treatment device |
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| Publication Number | Publication Date |
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| CN110627280A CN110627280A (en) | 2019-12-31 |
| CN110627280B true CN110627280B (en) | 2021-12-14 |
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| CN201910798024.9A Active CN110627280B (en) | 2019-08-27 | 2019-08-27 | Wet flue gas desulfurization waste water multi-stage treatment device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208038213U (en) * | 2018-03-08 | 2018-11-02 | 天津市武清区隆生家庭农场有限公司 | A kind of waste water purification system of Control the Plan Pollution Sources |
| CN109399855A (en) * | 2018-12-17 | 2019-03-01 | 新疆天富集团有限责任公司 | A kind of zero emission treatment of desulfured waste water |
| CN208726888U (en) * | 2018-04-08 | 2019-04-12 | 赣州市竹乡人物业管理有限公司 | A kind of municipal works environment-friendly type sanitary wastewater multi-stage treatment units |
| CN208916968U (en) * | 2018-09-12 | 2019-05-31 | 无锡利信能源科技有限公司 | Desulfurization wastewater multi-level handling system |
-
2019
- 2019-08-27 CN CN201910798024.9A patent/CN110627280B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208038213U (en) * | 2018-03-08 | 2018-11-02 | 天津市武清区隆生家庭农场有限公司 | A kind of waste water purification system of Control the Plan Pollution Sources |
| CN208726888U (en) * | 2018-04-08 | 2019-04-12 | 赣州市竹乡人物业管理有限公司 | A kind of municipal works environment-friendly type sanitary wastewater multi-stage treatment units |
| CN208916968U (en) * | 2018-09-12 | 2019-05-31 | 无锡利信能源科技有限公司 | Desulfurization wastewater multi-level handling system |
| CN109399855A (en) * | 2018-12-17 | 2019-03-01 | 新疆天富集团有限责任公司 | A kind of zero emission treatment of desulfured waste water |
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| CN110627280A (en) | 2019-12-31 |
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