CN213771633U - Limestone-gypsum wet desulphurization wastewater treatment device - Google Patents
Limestone-gypsum wet desulphurization wastewater treatment device Download PDFInfo
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- CN213771633U CN213771633U CN202022734922.9U CN202022734922U CN213771633U CN 213771633 U CN213771633 U CN 213771633U CN 202022734922 U CN202022734922 U CN 202022734922U CN 213771633 U CN213771633 U CN 213771633U
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- tank
- neutralization
- flocculation
- limestone
- filter basket
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- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 22
- 239000010440 gypsum Substances 0.000 title claims abstract description 22
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 19
- 238000005189 flocculation Methods 0.000 claims abstract description 49
- 230000016615 flocculation Effects 0.000 claims abstract description 49
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 49
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 37
- 230000023556 desulfurization Effects 0.000 claims abstract description 37
- 239000002351 wastewater Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000004062 sedimentation Methods 0.000 claims abstract description 22
- 238000005352 clarification Methods 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 10
- 239000007787 solid Substances 0.000 abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003546 flue gas Substances 0.000 abstract description 5
- 239000010802 sludge Substances 0.000 abstract description 5
- 238000009825 accumulation Methods 0.000 abstract description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 2
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000004571 lime Substances 0.000 abstract description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Images
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a wet flue gas desulfurization technical field, concretely relates to lime stone-gypsum wet flue gas desulfurization effluent treatment plant. The method aims to solve the problems that solid insoluble substances in the desulfurization wastewater are numerous, and the problems of serious sludge accumulation, unsmooth running water and blockage of a drain pipe at the bottoms of a neutralization tank, a flocculation tank and a sedimentation tank can be frequently caused. The utility model provides a limestone-gypsum wet desulphurization wastewater treatment device, which comprises a neutralization tank, a settling tank, a flocculation tank, a clarification tank and a clean water tank which are connected in sequence by using pipelines; filter baskets capable of filtering desulfurization wastewater are arranged in the neutralization tank, the settling tank and the flocculation tank; the filter basket is a detachable filter basket. The method has the advantages of not increasing energy consumption, improving the treatment efficiency of the desulfurization wastewater, and solving the problems of serious sludge accumulation, unsmooth running water and blockage of a drain pipe at the bottoms of a neutralization tank, a flocculation tank and a sedimentation tank.
Description
Technical Field
The utility model relates to a wet flue gas desulfurization technical field, concretely relates to lime stone-gypsum wet flue gas desulfurization effluent treatment plant.
Background
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be taken as an acknowledgement or any form of suggestion that this information constitutes prior art that is already known to a person skilled in the art.
Among the various desulfurization techniques, the limestone-gypsum wet flue gas desulfurization technique has become the most widely used desulfurization technique due to its advantages of mature technique, wide range of coal used, high desulfurization efficiency, and the like. However, the limestone-gypsum wet desulphurization technology inevitably generates desulphurization waste water, and the desulphurization waste water cannot be directly discharged due to the problems of low pH value, high content of suspended matters, excessive heavy metals and the like.
The most common treatment method for the desulfurization wastewater in the prior art is to separately arrange a set of complete chemical water treatment system, precipitate main heavy metal pollutants and suspended solids in the desulfurization wastewater by adding chemical agents, separate the precipitate by a clarifier, discharge effluent, and transport and treat the precipitated sludge by a plate and frame machine, thereby achieving the purpose of removing the pollutants in the wastewater.
The inventor finds that although the treatment method can effectively treat the desulfurization wastewater and enable the desulfurization wastewater to reach the recycling standard, solid insoluble substances in the desulfurization wastewater in the treatment process are many, and the problems of serious sludge accumulation, unsmooth running water and blockage of a sewage discharge pipe at the bottoms of a neutralization tank, a flocculation tank and a sedimentation tank are often caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a limestone-gypsum wet desulphurization wastewater treatment device, which solves the problems of serious accumulated mud, unsmooth flowing water and blockage of a blow-off pipe at the bottom of a neutralization tank, a flocculation tank and a sedimentation tank.
Specifically, the utility model discloses a following technical scheme realizes:
a limestone-gypsum wet desulphurization wastewater treatment device comprises a neutralization tank, a settling tank, a flocculation tank, a clarification tank and a clean water tank which are sequentially connected by using pipelines;
filter baskets capable of filtering desulfurization wastewater are arranged in the neutralization tank, the settling tank and the flocculation tank; the filter basket is a detachable filter basket.
The utility model discloses one or more embodiments have following beneficial effect:
1) the filter baskets are designed in the neutralization tank, the sedimentation tank and the flocculation tank, and the filter baskets block insoluble substances in the desulfurization wastewater, so that the problems of serious sludge accumulation, unsmooth running water and blockage of a drain pipe at the bottoms of the neutralization tank, the flocculation tank and the sedimentation tank can be avoided.
2) The detachable design of the filter basket can facilitate the replacement of the filter basket, and has the advantages of high replacement speed and convenient replacement, and the operation of the desulfurization wastewater treatment system is not required to be stopped, thereby reducing the loss caused by the shutdown of the desulfurization wastewater treatment system.
3) Due to the interception effect of the filter basket on insoluble substances, the pressure of the clarification tank for treating the desulfurization wastewater is reduced.
4) The filter baskets capable of filtering the desulfurization wastewater are respectively arranged in the neutralization tank, the sedimentation tank and the flocculation tank, so that the treatment efficiency of the desulfurization wastewater can be improved, and the treatment time of the desulfurization wastewater can be shortened.
5) The utility model discloses processing apparatus is simple, does not additionally increase the energy consumption, can improve desulfurization waste water's treatment effeciency, can solve again and neutralize case, flocculation case, subside case bottom of the case long-pending mud serious, the problem that the flowing water is smooth, blow off pipe blocks up.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic structural diagram of a limestone-gypsum wet desulphurization wastewater treatment device in embodiment 1 of the present invention.
Fig. 2 is a top view of a filter basket according to embodiment 1 of the present invention.
Wherein: 1. neutralization tank, 2, settling tank, 3, flocculation tank, 4, clarification tank, 5, clean water tank, 6 filter basket, 7, filter basket opening, 8, pipeline inlet opening, 9, pipeline outlet opening, 10, pipeline.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that when the term "comprising" is used in the present invention, it indicates the presence of the feature, device, component and/or combination thereof.
Among the existing device, set up one set of complete chemical water treatment system alone, main pollutant heavy metal and suspended solid are detached in with desulfurization waste water, can reach emission standard, but, the solid undissolved substance in desulfurization waste water is many in the processing procedure, often can lead to the problem that neutralization box, flocculation case, settling tank bottom of the case deposit mud are serious, the flowing water is not smooth, blow off pipe blocks up.
In order to solve the problems, the utility model provides an limestone-gypsum wet desulphurization wastewater treatment device, which comprises a neutralization tank, a settling tank, a flocculation tank, a clarification tank and a clean water tank which are connected in sequence by using pipelines;
filter baskets capable of filtering desulfurization wastewater are arranged in the neutralization tank, the settling tank and the flocculation tank; the filter basket is a detachable filter basket.
In some embodiments, the filter basket is within the neutralization, settling, and flocculation tanks adjacent the conduit inlet, and the filter basket opening is mated with the conduit inlet opening. Desulfurization waste water directly gets into through pipeline entry opening and strains the basket, guarantees that all desulfurization waste water that get into neutralization case, settling tank, flocculation case all filters earlier and gets into next box.
In some embodiments, the inlets of the neutralization tank, the sedimentation tank and the flocculation tank are arranged on the top, the filter basket is equal to the neutralization tank, the sedimentation tank and the flocculation tank in height, and the filter basket is upward opened and is opposite to the inlets of the neutralization tank, the sedimentation tank and the flocculation tank.
In some embodiments, the pipeline inlets of the neutralization tank, the sedimentation tank and the flocculation tank are arranged on the side parts of the neutralization tank, the sedimentation tank and the flocculation tank, and the filter basket is opened towards the side surface and is opposite to the inlets of the neutralization tank, the sedimentation tank and the flocculation tank.
In some embodiments, the filter basket is hollow from the bottom and sides.
In some embodiments, the filter basket is equal in height to the neutralization, settling, and flocculation tanks. The filter basket is convenient to fix.
In some embodiments, the opening size of the filter basket is larger than the pipe inlet size of the neutralization, settling and flocculation tanks.
In some embodiments, the filter basket is provided with a handle. Above design is convenient for change the filter basket.
In some embodiments, an online pH detector is disposed in the neutralization tank. The design is convenient for controlling the dosage and saving the medicine.
In some embodiments, an online pH detector is disposed in the settling tank. The above design can monitor the pH value in the settling tank in real time.
In some embodiments, the clarifier bottom is tapered. The design is favorable for separating suspended solids from water.
In some embodiments, the bottom in the neutralizing tank, the settling tank and the flocculation tank is provided with a fixing bulge matched with the shape and the placement position of the filter basket. Through the design, the filter basket can be fixed.
In some embodiments, the bottom of the clarification tank is provided with a mud scraping device. The design of the filter baskets in the neutralization tank, the sedimentation tank and the flocculation tank can reduce the pressure of the mud scraping device.
In some embodiments, the neutralization tank, the sedimentation tank and the flocculation tank are all internally provided with pH value detectors.
In some embodiments, the neutralization tank, the settling tank and the flocculation tank are all detachable. The box cover is provided with a dosing device, and the dosing device comprises a medicine box and an adjustable metering pump. The chemical dosing device is matched with the design of the pH value detector, so that the chemical dosage required by convenient and accurate dosing can be ensured.
Example 1
Referring to fig. 1 and 2, the device comprises a neutralization tank 1, a sedimentation tank 2, a flocculation tank 3, a clarification tank 4 and a clean water tank 5 which are connected in sequence by using a pipeline 10;
the neutralizing tank 1, the settling tank 2 and the flocculation tank 3 are internally provided with a filter basket 6 capable of filtering desulfurization wastewater; the filter basket is a detachable filter basket.
The filter basket 6 is arranged in the neutralizing tank 1, the settling tank 2 and the flocculation tank 3 and close to the pipeline inlet opening 8, and the opening 7 of the filter basket is matched with the pipeline inlet opening 8.
The inlet of the neutralization tank 1, the sedimentation tank 2 and the flocculation tank 3 is arranged at the top of the tank body, the filter basket 6 is equal to the neutralization tank 1, the sedimentation tank 2 and the flocculation tank 3 in height, and the filter basket opening 7 faces upwards and is opposite to the inlet of the neutralization tank 1, the sedimentation tank 2 and the flocculation tank 3.
Example 2
Sodium hydroxide is added to the neutralization tank 1 to adjust the pH to 9.2 + -0.3, so that the environment in the neutralization tank is suitable for the precipitation of most heavy metal ions.
Organic sulfide is added into the settling tank 2 to remove heavy metal ions such as cadmium, mercury and the like.
A flocculant is added to the flocculation tank 3 to precipitate hydroxides, compounds and other solids from the wastewater.
The filter basket 6 in the neutralization tank 1 can intercept insoluble substances such as gypsum, the filter basket 6 in the sedimentation tank 2 can intercept sediment generated in the neutralization tank 1, and the filter basket 6 in the flocculation tank 3 can intercept sediment in the sedimentation tank.
Desulfurization waste water gets into through neutralization box 1, settling tank 2, flocculation case 3's pipeline entry opening 8, filter basket opening 7 respectively and strains basket 6, gets into other positions in the box again after the interception of the solid insoluble substance of desulfurization waste water through straining the basket, reacts with the medicine that adds, flows out the box.
The clarification tank 4 adopts a form of middle water inlet and peripheral water outlet, and the top is conical. In the clarification tank, solid insoluble substances are separated from water and deposited at the bottom of the clarification tank 4, clear water flows into a subsequent clear water tank 5 through a pipeline outlet opening 9, and the water in the clear water tank 5 can reach the discharge or reuse standard.
Because of straining basket 6 and setting up for detachable, if strain the interior amasss mud volume of basket more, it can to directly take out and change straining basket 6.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.
Claims (10)
1. A limestone-gypsum wet desulphurization wastewater treatment device is characterized by comprising a neutralization tank, a settling tank, a flocculation tank, a clarification tank and a clean water tank which are sequentially connected by using pipelines;
filter baskets capable of filtering desulfurization wastewater are arranged in the neutralization tank, the settling tank and the flocculation tank; the filter basket is a detachable filter basket.
2. The limestone-gypsum wet desulfurization waste water treatment apparatus according to claim 1, wherein said filter basket is provided in the neutralization tank, the settling tank, the flocculation tank near the inlet of the pipeline, and the opening of the filter basket is matched with the inlet opening of the pipeline.
3. The limestone-gypsum wet desulphurization waste water treatment device according to claim 2, wherein the inlets of the neutralization tank, the settling tank and the flocculation tank are all arranged at the top, the filtering basket is equal to the neutralization tank, the settling tank and the flocculation tank in height, and the opening of the filtering basket is upward and is opposite to the inlets of the neutralization tank, the settling tank and the flocculation tank.
4. The limestone-gypsum wet desulphurization waste water treatment device according to claim 2, wherein the pipeline inlets of the neutralization tank, the settling tank and the flocculation tank are all arranged at the side parts of the neutralization tank, the settling tank and the flocculation tank, and the filter basket is opened towards the side surface and is opposite to the inlets of the neutralization tank, the settling tank and the flocculation tank.
5. The limestone-gypsum wet desulfurization waste water treatment apparatus as claimed in claim 1, wherein said filter basket is provided with a handle.
6. The limestone-gypsum wet desulphurization waste water treatment apparatus according to claim 1, wherein a pH value on-line detector is arranged in the neutralization tank.
7. The limestone-gypsum wet desulphurization waste water treatment apparatus according to claim 1, wherein a pH value on-line detector is arranged in the settling tank.
8. The limestone-gypsum wet desulfurization waste water treatment apparatus as claimed in claim 1, wherein the bottom of the clarifier is tapered.
9. The limestone-gypsum wet desulphurization waste water treatment device according to claim 1, wherein the bottom of the neutralization tank, the sedimentation tank and the flocculation tank is provided with a fixing projection which is matched with the shape and the placement position of the filter basket.
10. The limestone-gypsum wet desulphurization waste water treatment apparatus as defined in claim 1, wherein a mud scraper is provided at the bottom of said clarifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022734922.9U CN213771633U (en) | 2020-11-23 | 2020-11-23 | Limestone-gypsum wet desulphurization wastewater treatment device |
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| CN202022734922.9U CN213771633U (en) | 2020-11-23 | 2020-11-23 | Limestone-gypsum wet desulphurization wastewater treatment device |
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| CN213771633U true CN213771633U (en) | 2021-07-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113559707A (en) * | 2021-08-02 | 2021-10-29 | 国能龙源环保有限公司 | Limestone-gypsum wet flue gas desulfurization absorbent purification and regeneration system and method |
-
2020
- 2020-11-23 CN CN202022734922.9U patent/CN213771633U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113559707A (en) * | 2021-08-02 | 2021-10-29 | 国能龙源环保有限公司 | Limestone-gypsum wet flue gas desulfurization absorbent purification and regeneration system and method |
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Address after: No.001 Guoshun Road, Jinan Economic Development Zone, Changqing District, Jinan City, Shandong Province Patentee after: SHANDONG GUOSHUN CONSTRUCTION GROUP Co.,Ltd. Patentee after: Shandong Shunhengsheng Energy Conservation and Environmental Protection Technology Co.,Ltd. Address before: No.001 Guoshun Road, Jinan Economic Development Zone, Changqing District, Jinan City, Shandong Province Patentee before: SHANDONG GUOSHUN CONSTRUCTION GROUP Co.,Ltd. Patentee before: Shandong Guoshun Energy Conservation and Environmental Protection Technology Co.,Ltd. Address after: No.001 Guoshun Road, Jinan Economic Development Zone, Changqing District, Jinan City, Shandong Province Patentee after: SHANDONG GUOSHUN CONSTRUCTION GROUP Co.,Ltd. Patentee after: Shandong Guoshun Energy Conservation and Environmental Protection Technology Co.,Ltd. Address before: No.001 Guoshun Road, Jinan Economic Development Zone, Changqing District, Jinan City, Shandong Province Patentee before: SHANDONG GUOSHUN CONSTRUCTION GROUP Co.,Ltd. Patentee before: Shandong Guoshun environmental protection equipment Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231024 Address after: No.001 Guoshun Road, Jinan Economic Development Zone, Changqing District, Jinan City, Shandong Province Patentee after: SHANDONG GUOSHUN CONSTRUCTION GROUP Co.,Ltd. Patentee after: Shandong Xinfangzhou Environmental Protection Technology Co.,Ltd. Patentee after: Shandong Shunhengsheng Energy Conservation and Environmental Protection Technology Co.,Ltd. Address before: No.001 Guoshun Road, Jinan Economic Development Zone, Changqing District, Jinan City, Shandong Province Patentee before: SHANDONG GUOSHUN CONSTRUCTION GROUP Co.,Ltd. Patentee before: Shandong Shunhengsheng Energy Conservation and Environmental Protection Technology Co.,Ltd. |