CN210915662U - Special defluorination system of coal chemical industry waste water - Google Patents
Special defluorination system of coal chemical industry waste water Download PDFInfo
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- CN210915662U CN210915662U CN201921902489.6U CN201921902489U CN210915662U CN 210915662 U CN210915662 U CN 210915662U CN 201921902489 U CN201921902489 U CN 201921902489U CN 210915662 U CN210915662 U CN 210915662U
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- flocculation
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- 239000002351 wastewater Substances 0.000 title claims abstract description 27
- 239000000126 substance Substances 0.000 title claims abstract description 19
- 238000006115 defluorination reaction Methods 0.000 title claims abstract description 16
- 239000003245 coal Substances 0.000 title claims abstract description 15
- 238000004062 sedimentation Methods 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 230000000536 complexating effect Effects 0.000 claims abstract description 42
- 239000010802 sludge Substances 0.000 claims abstract description 41
- 238000005189 flocculation Methods 0.000 claims abstract description 40
- 230000016615 flocculation Effects 0.000 claims abstract description 40
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims abstract description 9
- 238000001556 precipitation Methods 0.000 claims description 10
- 239000012716 precipitator Substances 0.000 claims description 9
- 239000008139 complexing agent Substances 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 19
- 229910052731 fluorine Inorganic materials 0.000 abstract description 18
- 239000011737 fluorine Substances 0.000 abstract description 18
- 238000011282 treatment Methods 0.000 abstract description 18
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract description 12
- 239000003814 drug Substances 0.000 abstract description 12
- 239000010842 industrial wastewater Substances 0.000 abstract description 11
- -1 fluorine ions Chemical class 0.000 abstract description 6
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 description 13
- 230000003311 flocculating effect Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 6
- 239000000470 constituent Substances 0.000 description 6
- 238000011221 initial treatment Methods 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 4
- 239000008394 flocculating agent Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000013043 chemical agent Substances 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 238000010668 complexation reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000000909 electrodialysis Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The utility model discloses a special defluorination system for coal chemical wastewater, belonging to the technical field of industrial wastewater treatment; aims to improve the defluorination effect of the coal chemical industry wastewater, improve the treatment efficiency and reduce the dosage of the medicament; the wastewater after primary complexing enters a secondary complexing sedimentation tank to continue full complexing, and through a fluorine ion monitor, whether the fluorine ions in the treated water reach the standard or not is judged, and if not, the wastewater is circulated to the secondary complexing sedimentation tank for complexing sedimentation again; because the two-stage treatment is carried out and the flocculation effect is increased in a sludge backflow mode, on one hand, the effect of reducing the using amount of the medicament is achieved, and meanwhile, the effect of removing fluorine is more obvious due to the graded sedimentation; and simultaneously, the fluorine content of the treated industrial wastewater reaches the corresponding standard.
Description
Technical Field
The utility model belongs to the technical field of industrial wastewater treatment, concretely relates to special defluorination system of coal chemical industry waste water.
Background
The industrial wastewater with high salt content is usually washing wastewater, process system condensate water, chemical water station drainage, circulating water drainage and the like generated in the production processes of the industries such as coal chemical industry, petrochemical industry and the like, and because the production processes adopted by enterprises are different, the selected coal has different coal quality, and other types of wastewater are continuously mixed in the subsequent discharge process, the finally-treated wastewater has the characteristics of large water quantity, complex components, high pollutant concentration, high hardness, high alkalinity, large integral water quality fluctuation and the like.
According to the national industrial wastewater discharge standard, the concentration of fluorine ions is less than 10 mg/L; the fluorine-containing wastewater treatment method has various methods, and the most applied treatment processes in the current engineering are chemical precipitation, flocculation precipitation and adsorption. For the precipitation method, CaF produced2Is wrapped in Ca (OH)2The particle surface can not be fully used, and the dosage of the medicine is large; the concentration of the fluorine ions in the effluent is about 15mg/L generally, and the effluent is difficult to reach the standard; the sludge is slow to settle and difficult to dewater. The coagulation flocculation precipitation treatment cost is high, the amount of generated sludge is large, and the fluoride ion removal effect is influenced by operation factors such as stirring conditions, sedimentation time and the like and SO in water4 2-，Cl-The influence of plasma is large, and the quality of the effluent is not stable enough. The adsorption method has the advantages of small furnace burden adsorption capacity, low treatment efficiency and long treatment time; the exchange capacity of some filter materials is reduced after regeneration, and the repeated use effect is poor. And the more advanced defluorination technology such as electrodialysis, reverse osmosis, ion exchange, freezing and the like, and the methods have higher treatment cost and lower treatment efficiencyThe technology is not yet mature.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides a special defluorination system of coal chemical industry waste water, and aim at improves the effect that industrial waste water removed fluorine, improves the treatment effeciency, reduces the medicament use amount, makes the fluorine content of the industrial waste water after handling reach corresponding standard simultaneously.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A special defluorination system for coal chemical industry wastewater comprises a complex flocculation tank, a precipitation concentration tank and a second-stage complex sedimentation tank which are sequentially arranged, wherein the complex flocculation tank is provided with a first-stage water inlet pipe, a dosing port is arranged on the first-stage water inlet pipe, a mixer is arranged at the joint of the dosing port and the first-stage water inlet pipe, a flocculation stirrer is arranged in the complex flocculation tank, the bottom of the flocculation stirrer is provided with a sludge mixer, the complex flocculation tank is communicated with the precipitation concentration tank through a first water outlet pipe, a vertical flow type precipitator is arranged in the precipitation concentration tank, a first-stage sludge return pipe and a first-stage sewage drain pipe are arranged at the lower part of the vertical flow type precipitator, a first-stage sludge return pump is arranged on the first-stage sludge return pipe and is connected to the complex flocculation tank, the precipitation concentration tank is connected with, the utility model discloses a complex sedimentation tank, including two levels of complex sedimentation tanks, two levels of inlet tubes, complex agitator, collecting pit, one-level blow off pipe, second grade blow off pipe, drain main, be connected with the dredge pump on the drain main, two levels of complex sedimentation tanks are provided with the secondary blow off pipe, and the one-level blow off pipe, second grade blow off pipe are connected with the blowdown house steward respectively, be connected with the dredge pump on the blowdown house steward, two levels of complex sedimentation tanks are provided with complexing agent charge door and fluorine ion monitor, the delivery port of two levels of complex sedimentation tanks is connected with back flow and outlet pipe, be provided with the control valve on back.
Further, the precipitation concentration tank is provided with a regulator feed inlet.
Furthermore, a secondary sludge return pipe is arranged at the bottom of the collecting tank and connected to the complex flocculation tank, and a secondary sludge return pump is arranged on the secondary sludge return pipe.
Further, the mixer is a vortex type pipeline mixer.
The utility model discloses produced beneficial effect does for prior art.
Complex flocculating tank in use add earlier and complex defluorinating agent, complex defluorinating agent's principal ingredients be polyaluminium sulfate, polyferric sulfate, zirconia, active titanium dioxide, water, stabilizer, complex defluorinating agent is thrown and is thrown in the raw water, take place complex reaction with the fluoride ion in the sewage under flocculation mixer's effect, later add a certain amount of PAM flocculating agent and continue the stirring, use the flocculating agent to impel the little flocculating body that gets into to form bigger flocculating body through absorption, electric property neutralization and mutual bridging, make medicament and flocculating body can the intensive mixing can not destroy the big flocculating body that has formed again.
And (4) after the complexing flocculation, the wastewater subjected to the primary complexing enters a sedimentation concentration tank, and the sludge is precipitated through a vertical flow type precipitator. The settled sludge falls to the bottom of the tank where it is concentrated. Then some mud returns to the complex flocculation basin through one-level mud back flow, another part is discharged from the one-level blow off pipe, the mud in the concentrated pond of sediment has certain coagulation property, the backward flow of mud has increased the suspended solid of sewage, form the sludge blanket of a flocculating constituent to a certain extent, the sedimentation rate of flocculating constituent can be increased to the backward flow mud granule, the flocculation adsorption of biological flocculating constituent can be the clearance of the improvement pollutant of great degree in the mud simultaneously, play the primary treatment effect, also can avoid excessively throwing the medicament simultaneously.
The pH value of the wastewater after the primary treatment is adjusted to be between 6 and 9 by adding the regulator through the regulator feeding port, then the primary treatment wastewater enters a secondary complexing sedimentation tank through a secondary water inlet pipe under the action of a flow impeller in a sedimentation concentration tank for deep secondary complexing sedimentation, continuously adding a complexing defluorinating agent which mainly comprises polyaluminium sulfate, polyferric sulfate, zirconia, active titanium dioxide, water and a stabilizer through a complexing agent charging port, complexing under the action of stirring, settling after complexing, allowing the sludge to enter a collecting pool at the bottom, monitoring the content of fluorine ions in the wastewater after secondary treatment by a fluorine ion monitor, if the standard is met, the sewage is discharged through a water outlet pipe connected with the water outlet of the secondary complexing sedimentation tank, if the standard is not met, then the return pipe is opened to close the water outlet pipe, so that the wastewater is subjected to complexing sedimentation again to carry out defluorination operation.
Because the secondary treatment is carried out, and the flocculation effect is increased in a sludge backflow mode, on one hand, the effect of reducing the using amount of the medicament is achieved, and meanwhile, the effect of removing fluorine is more obvious due to the graded sedimentation.
The utility model discloses a second grade complex and flocculation improve the effect that industrial waste water removed fluorine, improve the treatment effeciency, reduce the medicament use amount, make the fluorine content of the industrial waste water after handling reach corresponding standard simultaneously.
The method can remove fluorine more effectively and deeply, realize that the concentration of F ions in the effluent can be lower than 5.0mg/L, can reach the national industrial wastewater discharge standard, has high strength and multiple effects of removing fluorine, coagulating and the like, and accelerates the precipitation.
The method has the advantages of environmental protection, high medicament purity, less impurities, low sludge amount, no increase of pollutants such as COD (chemical oxygen demand), N (nitrogen), P (phosphorus) and the like in the water body, no influence of sludge filter pressing effluent on the biochemical treatment, no toxicity, no odor, no influence on the water body, and clear treated effluent.
More stable, large defluorination capacity, good physical property, safe and reliable use, more stable effluent and higher removal rate.
More convenient, does not need to change the raw water treatment flow, does not need to add large-scale water treatment structures, can take effect by adding, does not need complicated debugging, and is simple and convenient to operate, economical and practical.
Drawings
FIG. 1 is a schematic structural view of an industrial wastewater fluorine removal device according to the present invention.
Wherein, 1 is the complex flocculation pond, 2 is the concentrated pond of sediment, 3 is second grade complex sedimentation tank, 4 is the one-level inlet tube, 5 is the medicine feeding mouth, 6 is vortex formula pipe mixer, 7 is the flocculation mixer, 8 is the sludge mixing ware, 9 is first outlet pipe, 10 is vertical flow formula precipitator, 11 is one-level sludge return pipe, 12 is the one-level blow off pipe, 13 is the second grade inlet tube, 14 is the impeller, 15 is the complex agitator, 16 is the collecting pit, 17 is the second grade blow off pipe, 18 is the blowdown house steward, 19 is the dredge pump, 20 is the complexing agent charge door, 21 is the fluorine ion monitor, 22 is the back flow, 23 is the outlet pipe, 24 is the control valve, 25 is the regulator charge door, 26 is the second grade sludge return pipe, 27 is the second grade sludge return pump, 28 is the one-level sludge return pump.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in figure 1, the special defluorination system for coal chemical wastewater comprises a complex flocculation tank 1, a sedimentation concentration tank 2 and a second-stage complex sedimentation tank 3 which are sequentially arranged, wherein the complex flocculation tank 1 is provided with a first-stage water inlet pipe 4, a chemical feeding port 5 is arranged on the first-stage water inlet pipe 4, an eddy current type pipeline mixer 6 is arranged at the joint of the chemical feeding port 5 and the first-stage water inlet pipe 4, a flocculation stirrer 7 is arranged in the complex flocculation tank 1, a sludge mixer 8 is arranged at the bottom of the flocculation stirrer 7, the complex flocculation tank 1 is communicated with the sedimentation concentration tank 2 through a first water outlet pipe 9, the sedimentation concentration tank 2 is provided with a regulator feeding port 25, a vertical flow type precipitator 10 is arranged in the sedimentation concentration tank 2, a first-stage sludge backflow pipe 11 and a first-stage sewage discharge pipe 12 are arranged at the lower part of the vertical flow type precipitator 10, a first-, be connected through second grade inlet tube 13 between 2 and the second grade complex sedimentation tank 3 of sedimentation concentration pond, second grade inlet tube 13 entry is provided with impeller 14, is provided with complex agitator 15 in the second grade complex sedimentation tank 3, and the bottom of complex agitator 15 is provided with collecting pit 16, and collecting pit 16 bottom is provided with second grade sludge return pipe 26, and second grade sludge return pipe 26 is connected to complex flocculation tank 1, is provided with second grade sludge reflux pump 27 on the second grade sludge return pipe 26. The bottom of the collecting tank 16 is also provided with a secondary sewage discharge pipe 17, the primary sewage discharge pipe 12 and the secondary sewage discharge pipe 17 are respectively connected with a main sewage discharge pipe 18, the main sewage discharge pipe 18 is connected with a sewage discharge pump 19, the secondary complexing sedimentation tank 3 is provided with a complexing agent feed inlet 20 and a fluorine ion monitor 21, the water outlet of the secondary complexing sedimentation tank 3 is connected with a return pipe 22 and a water outlet pipe 23, the return pipe 22 and the water outlet pipe 23 are respectively provided with a control valve 24, and the return pipe 22 is connected to the water inlet of the secondary complexing sedimentation tank 3.
Firstly adding a complexing defluorinating agent into the complexing flocculation tank 1, wherein the complexing defluorinating agent comprises the following main components in percentage by mass: polymeric aluminum sulfate: 15% -20%, polymeric ferric sulfate: 10% -15%, zirconia: 3% -8%, active titanium dioxide: 5% -10%, water: 50% -55%, stabilizer: 1% -2% of a chemical agent, namely a complexing defluorinating agent is added into raw water, the chemical agent and the fluorine ions in the sewage undergo a complexing reaction under the action of a flocculation stirrer 7, then a certain amount of PAM flocculating agent is added for continuous stirring, and the flocculating agent is used for promoting the entering small flocs to form larger flocs through adsorption, electrical neutralization and mutual bridging, so that the chemical agent and the flocs can be fully mixed without damaging the formed large flocs.
The wastewater after the first-stage complexation after the complexation flocculation enters a sedimentation concentration tank 2, and sludge is precipitated through a vertical flow type precipitator 10. The settled sludge falls to the bottom of the tank where it is concentrated. Then some mud returns to complex flocculation basin 1 through one-level mud back flow 11, another part is discharged from one-level blow off pipe 12, the mud in the concentrated pond of sediment 2 has certain coagulation property, the backward flow of mud has increased the suspended solid of sewage, the sludge blanket of a flocculating constituent is formed to a certain extent, the sedimentation rate of flocculating constituent can be increased to the backward flow mud granule, the flocculation adsorption of biological flocculating constituent can be the clearance of the improvement pollutant of great degree in the mud simultaneously, the primary treatment effect is played, also can avoid excessively throwing the medicament simultaneously.
Sodium hydroxide is added through a regulator feed opening 25 to regulate the pH value of the wastewater after the internal primary treatment to be between 6 and 9, then the primary treatment wastewater enters a secondary complexing sedimentation tank 3 through a secondary water inlet pipe 13 for deep secondary complexing treatment sedimentation in a sedimentation concentration tank 2 under the action of a flow impeller 14, the complexing defluorinating agent which mainly comprises polyaluminium sulfate, polyferric sulfate, zirconia, active titanium dioxide, water and a stabilizer is continuously added through a complexing agent charging port 20, complexing under the action of stirring, settling after complexing, allowing the sludge to enter a collecting tank 16 at the bottom, monitoring the content of fluorine ions in the wastewater after secondary treatment by a fluorine ion monitor 21, if the water is discharged through the water outlet pipe 23 connected with the water outlet of the secondary complexing sedimentation tank 3 after reaching the standard, if the water is not up to the requirement, the return pipe 22 is opened to close the water outlet pipe 23, so that the wastewater is subjected to complexing sedimentation again for defluorination operation.
Because the secondary treatment is carried out, and the flocculation effect is increased in a sludge backflow mode, on one hand, the effect of reducing the using amount of the medicament is achieved, and meanwhile, the effect of removing fluorine is more obvious due to the graded sedimentation.
The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.
Claims (4)
1. The special defluorination system for the coal chemical industry wastewater is characterized by comprising a complexing flocculation tank (1), a sedimentation concentration tank (2) and a second-stage complexing sedimentation tank (3) which are sequentially arranged, wherein a first-stage water inlet pipe (4) is arranged on the complexing flocculation tank (1), a chemical adding port (5) is arranged on the first-stage water inlet pipe (4), a mixer is arranged at the joint of the chemical adding port (5) and the first-stage water inlet pipe (4), a flocculation stirrer (7) is arranged in the complexing flocculation tank (1), a sludge mixer (8) is arranged at the bottom of the flocculation stirrer (7), the complexing flocculation tank (1) is communicated with the sedimentation concentration tank (2) through a first water outlet pipe (9), a vertical flow type precipitator (10) is arranged in the sedimentation concentration tank (2), a first-stage sludge backflow pipe (11) and a first-stage blow-off pipe (12) are arranged at the lower part of the vertical flow type precipitator, the device is characterized in that a primary sludge reflux pump (28) is arranged on the primary sludge reflux pipe (11) and connected to the complexing flocculation tank (1), the sedimentation concentration tank (2) is connected with the secondary complexing sedimentation tank (3) through a secondary water inlet pipe (13), an inlet of the secondary water inlet pipe (13) is provided with a flow impeller (14), a complexing stirrer (15) is arranged in the secondary complexing sedimentation tank (3), a collecting tank (16) is arranged at the bottom of the complexing stirrer (15), a secondary blow-off pipe (17) is arranged at the bottom of the collecting tank (16), the primary blow-off pipe (12) and the secondary blow-off pipe (17) are respectively connected with a main blow-off pipe (18), a blow-off pump (19) is connected on the main blow-off pipe (18), a complexing agent charging opening (20) and a fluorine ion monitor (21) are arranged on the secondary complexing sedimentation tank (3), a water outlet of the secondary complexing sedimentation tank (3) is connected with a reflux, the return pipe (22) and the water outlet pipe (23) are respectively provided with a control valve (24), and the return pipe (22) is connected to the water inlet of the secondary complexing sedimentation tank (3).
2. The special defluorination system for coal chemical industry wastewater according to claim 1, wherein said precipitation concentration tank (2) is provided with a regulator feed port (25).
3. The special defluorination system for coal chemical industry wastewater according to claim 1, characterized in that a secondary sludge return pipe (26) is arranged at the bottom of said collection tank (16), said secondary sludge return pipe (26) is connected to said flocculation tank (1), and a secondary sludge return pump (27) is arranged on said secondary sludge return pipe (26).
4. The special defluorination system for coal chemical industry wastewater according to claim 1, characterized in that said mixer is a vortex type pipeline mixer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921902489.6U CN210915662U (en) | 2019-11-06 | 2019-11-06 | Special defluorination system of coal chemical industry waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921902489.6U CN210915662U (en) | 2019-11-06 | 2019-11-06 | Special defluorination system of coal chemical industry waste water |
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| CN210915662U true CN210915662U (en) | 2020-07-03 |
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| CN201921902489.6U Active CN210915662U (en) | 2019-11-06 | 2019-11-06 | Special defluorination system of coal chemical industry waste water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112125439A (en) * | 2020-09-21 | 2020-12-25 | 河南开祥精细化工有限公司 | System for removing fluorine ions in wastewater for coal gas production |
| CN116425373A (en) * | 2023-06-13 | 2023-07-14 | 长春柏美水务科技有限公司 | System for high fluorine-containing waste water advanced treatment resourceful treatment of high pH |
-
2019
- 2019-11-06 CN CN201921902489.6U patent/CN210915662U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112125439A (en) * | 2020-09-21 | 2020-12-25 | 河南开祥精细化工有限公司 | System for removing fluorine ions in wastewater for coal gas production |
| CN116425373A (en) * | 2023-06-13 | 2023-07-14 | 长春柏美水务科技有限公司 | System for high fluorine-containing waste water advanced treatment resourceful treatment of high pH |
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