CN209507709U - A kind of accurate control pH value fluorine removal complexes system - Google Patents
A kind of accurate control pH value fluorine removal complexes system Download PDFInfo
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- CN209507709U CN209507709U CN201920092453.XU CN201920092453U CN209507709U CN 209507709 U CN209507709 U CN 209507709U CN 201920092453 U CN201920092453 U CN 201920092453U CN 209507709 U CN209507709 U CN 209507709U
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Abstract
The utility model discloses a kind of accurate control pH value fluorine removal complexes systems, including the mixing of wastewater collection pond, waste water pump elevator pump, PH detector A, PH detector B, PH detector C, waste water and PH regulating device, high-precision proportional control valve A, high-precision proportional control valve B, sedimentation basin；While the utility model patent effectively removes fluorine ion, medicament use is saved, the balancing tank PH expenditure of construction is saved, avoids the wasting of resources.
Description
Technical field
The utility model relates to a kind of fluorine removal complexes, are specifically a kind of accurate control pH value fluorine removal complexes
System.
Background technique
Modern industry is such as: can generate during production of electronic components, metal etch, plating, pesticide producing a large amount of fluorine-containing
Waste water, and fluorinion concentration is higher.The technology of the more processing fluoride waste of domestic application is mainly chemical precipitation, coagulation at present
Precipitating and absorption method.Wherein coagulating sedimentation and absorption method are suitable for the fluoride wastewater treatment of low concentration；The fluoride waste of high concentration
Frequently with the precipitation method；Nowadays fluorine is generated in conjunction with fluorine ion using calcium ion using calcium chloride is added using the more precipitation method
Change calcium precipitate, achievees the purpose that Natural zeolite；PH is discharged as neutrality by adding acid-base accommodation again.The method is deposited in the application
In following deficiency:
1, fluoride waste fluorinion concentration changes with manufacturing condition, to achieve the purpose that Natural zeolite, needs
Amount adds calcium ion, causes the waste of calcium chloride；
It 2, is mainly hydrofluoric acid in acidic fluorine-containing waste water, after removing Natural zeolite with calcium chloride, in addition water outlet is needed in acidity
Sodium hydroxide etc. is added to be neutralized；
3, replace calcium chloride fluorine removal that can adjust pH while fluorine removal using calcium hydroxide；But pH is in neutrality, on a small quantity
Soda acid will result in the larger fluctuation of pH value, it is big for the dosage control difficulty of calcium hydroxide.
For above situation, a set of apparatus system that can accurately control calcium ion concentration and pH value of waste water is needed.
Utility model content
Therefore, in order to solve above-mentioned deficiency, the utility model provides a kind of accurate control pH value fluorine removal complexes herein
System.The feature big for fluoride waste water, fluorinion concentration is high generallys use add excessive calcium ion fluorine removal both at home and abroad,
And acid-base accommodation pH is added as neutrality.Calcium salt is there are a degree of waste in treatment process, and acid-base accommodation control difficulty compared with
Greatly.It has been investigated that the dosage of pH value and calcium hydroxide exists certain using calcium hydroxide processing acidic fluorine-containing waste water
Corresponding relationship can achieve the purpose that Natural zeolite and accurately control calcium salt dosage, subtract as long as accomplishing accurately to control pH value
Lack the loss of calcium salt, while saving the consumption of soda acid.Therefore accurate control pH value of waste water fluorine removal complexes are devised, effectively
While removing Natural zeolite, medicament use is saved, the balancing tank PH expenditure of construction is saved, avoids the wasting of resources.
The utility model is realized in this way constructing a kind of accurate control pH value fluorine removal complexes system, feature exists
In: the system includes wastewater collection pond: for collecting commercial acid fluoride waste；
Including waste water pump elevator pump: for waste water to be pumped into PH regulating device from wastewater collection pond；
Including PH detector A, PH detector B, PH detector C, it is separately mounted to adjust for the first time into water and second is adjusted
Save rear end；
Including waste water mixing and PH regulating device: for waste water and calcium hydroxide to be sufficiently mixed in this device, and adjusting
PH value, finally the pH value waste water discharge to require；
Including high-precision proportional control valve A and high-precision proportional control valve B, for controlling the additional amount of calcium hydroxide；
Including sedimentation basin: for accurately adjusting the wastewater collection after pH value, and precipitating；
Wherein, wastewater collection pond is connected to by pipeline with waste water pump elevator pump, and the output end of waste water pump elevator pump passes through pipe
Road is connected to waste water mixing and PH regulating device, PH detector A is arranged in the arrival end of waste water mixing and PH regulating device, to examine
Survey water inlet pH value；
Waste water mixing and PH regulating device are made of anti-corrosion material, generally cylindrical, and diameter is certain by waste pipe
Ratio production；Blender is arranged in control device, so that waste water is sufficiently mixed with alkali；
The inside of waste water mixing and PH regulating device is divided into mixing section 1, buffer area, mixing section 2；
Wherein, PH detector B, PH detector C, high-precision proportional control valve A and high-precision proportional control valve B are located at hydrogen-oxygen
Change in calcium or sodium hydroxide medicine system pipeline,
PH detector B is set in 1 rear end of initial adjustment stage, that is, mixing section, intelligent controller accurately controls hydrogen according to this value of feedback
Calcium oxide input amount；PH detector C, the PH instrument of accurate adjustment and the valve for controlling calcium hydroxide is arranged in 2 rear end of accurate adjustment stage, that is, mixing section
Door precision is higher, and the demand of calcium hydroxide is smaller；
The dress obtains waste water from wastewater collection pond, and it is subsequent to be discharged into sedimentation basin progress after accurate adjusting acidic fluorine-containing waste water pH value
Normal process flow；To replace the PH conditioning tank in wastewater treatment process.
The utility model has the advantages that the utility model provides the accurate control pH value fluorine removal of one kind into suit herein
It sets.The feature big for fluoride waste water, fluorinion concentration is high generallys use add excessive calcium ion fluorine removal both at home and abroad, and
Acid-base accommodation pH is added as neutrality.There are a degree of wastes for calcium salt in treatment process, and acid-base accommodation control difficulty is larger.
It has been investigated that using calcium hydroxide processing acidic fluorine-containing waste water there is certain pair in the dosage of pH value and calcium hydroxide
It should be related to, as long as accomplishing accurately to control pH value, can achieve the purpose that Natural zeolite and accurately control calcium salt dosage, reduce
The loss of calcium salt, while saving the consumption of soda acid.Therefore accurate control pH value of waste water fluorine removal complexes are devised, effectively go
While Natural zeolite, medicament use is saved, the balancing tank PH expenditure of construction is saved, avoids the wasting of resources.
In addition, mainly there is the following in the advantages of device:
1, by robot control system(RCS) according to the variation adjust automatically calcium hydroxide dosage of pH value, high degree of automation.
2, it is controlled using precision instrument, is accurately controlled in pH value of waste water in claimed range.
3, by accurately controlling pH value, the accurate dosage for controlling calcium hydroxide reduces the loss of medicament.
The accurate control pH value of waste water fluorine removal complexes, can adding according to water inlet pH value adjust automatically calcium hydroxide
Amount accurately controls the usage amount of calcium hydroxide under the premise of ensureing water outlet fluoride ion removing, and the loss for reducing calcium hydroxide is same
When avoiding adjusting pH value excessive soda acid use.Package unit high degree of automation is not necessarily to manual intervention, can effectively remove water
Middle fluorine ion is saved medicament and is used.
Detailed description of the invention
Fig. 1 is Tthe utility model system structural principle block diagram；
Fig. 2 is Tthe utility model system work-based logic schematic diagram.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing 1- Fig. 2, to the skill in the utility model embodiment
Art scheme is clearly and completely described, it is clear that and the described embodiments are only a part of the embodiments of the utility model, and
The embodiment being not all of.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of labour.
Fluorine ion mainly exists in the form of hydrofluoric acid in acidic fluorine-containing waste water, and after adding calcium hydroxide, reaction is main
Are as follows: 2HF+Ca (OH)2⇋2H2O+CaF2.It can be seen that adding for calcium hydroxide can correspond to Natural zeolite by formula, disappear simultaneously
The acid of equivalent is consumed, i.e. the pH value of the dosage of calcium hydroxide and waste water, can be by accurate there is certain corresponding relationship
The pH value for controlling acidic fluorine-containing waste water achievees the purpose that control calcium ion dosage.It is analyzed, devises a kind of accurate control acid
Property fluoride waste pH value complexes, which obtains waste water from wastewater collection pond, it is accurate adjust acidic fluorine-containing waste water pH value after
It is discharged into sedimentation basin；To replace the PH conditioning tank in wastewater treatment process.
The utility model provides a kind of accurate control pH value fluorine removal complexes system by improving herein, and feature exists
In: the system includes wastewater collection pond: for collecting commercial acid fluoride waste；
Including waste water pump elevator pump: for waste water to be pumped into PH regulating device from wastewater collection pond；
Including PH detector A, PH detector B, PH detector C, it is separately mounted to adjust for the first time into water and second is adjusted
Save rear end；
Including waste water mixing and PH regulating device: for waste water and calcium hydroxide to be sufficiently mixed in this device, and adjusting
PH value, finally the pH value waste water discharge to require；
Including high-precision proportional control valve A and high-precision proportional control valve B, for controlling the additional amount of calcium hydroxide；
Including sedimentation basin: for accurately adjusting the wastewater collection after pH value, and precipitating；
Wherein, wastewater collection pond is connected to by pipeline with waste water pump elevator pump, and the output end of waste water pump elevator pump passes through pipe
Road is connected to waste water mixing and PH regulating device, PH detector A is arranged in the arrival end of waste water mixing and PH regulating device, to examine
Survey water inlet pH value；
Waste water mixing and PH regulating device are made of anti-corrosion material, generally cylindrical, and diameter is certain by waste pipe
Ratio production；Blender is arranged in control device, so that waste water is sufficiently mixed with alkali；
The inside of waste water mixing and PH regulating device is divided into mixing section 1, buffer area, mixing section 2；
Wherein, PH detector B, PH detector C, high-precision proportional control valve A and high-precision proportional control valve B are located at hydrogen-oxygen
Change in calcium or sodium hydroxide medicine system pipeline,
PH detector B is set in 1 rear end of initial adjustment stage, that is, mixing section, intelligent controller accurately controls hydrogen according to this value of feedback
Calcium oxide input amount；PH detector C, the PH instrument of accurate adjustment and the valve for controlling calcium hydroxide is arranged in 2 rear end of accurate adjustment stage, that is, mixing section
Door precision is higher, and the demand of calcium hydroxide is smaller；
The dress obtains waste water from wastewater collection pond, and it is subsequent to be discharged into sedimentation basin progress after accurate adjusting acidic fluorine-containing waste water pH value
Normal process flow；To replace the PH conditioning tank in wastewater treatment process.
For accurate control waste water pH value device design；
1) control device is made of anti-corrosion material, and for cylinder, diameter is made by waste pipe certain proportion；Control dress
Blender is installed, so that waste water is sufficiently mixed with highly basic.
2) before waste water enters device, PH detector is set to detect water inlet pH value；In initial adjustment stage rear end, PH is set
Detector, intelligent controller accurately control calcium hydroxide input amount according to this value of feedback；The accurate adjustment stage similarly, the PH instrument of accurate adjustment and
The valve precision for controlling calcium hydroxide is higher, and the demand of calcium hydroxide is smaller.
3) pH value of waste water is accurately controlled in claimed range by this device, and it is subsequent normal to then drain into sedimentation basin progress
Process flow.
, mainly there is the following in the advantages of device:
1, by robot control system(RCS) according to the variation adjust automatically calcium hydroxide dosage of pH value, high degree of automation.
2, it is controlled using precision instrument, is accurately controlled in pH value of waste water in claimed range.
3, by accurately controlling pH value, the accurate dosage for controlling calcium hydroxide reduces the loss of medicament.
The accurate control pH value of waste water fluorine removal complexes, can adding according to water inlet pH value adjust automatically calcium hydroxide
Amount, under the premise of ensureing water outlet fluoride ion removing, the accurate usage amount for controlling calcium hydroxide reduces the loss of calcium hydroxide
It avoids adjusting soda acid excessive when pH value simultaneously to use.Package unit high degree of automation is not necessarily to manual intervention, can effectively remove
Fluorine ion in water is saved medicament and is used.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (1)
1. a kind of accurate control pH value fluorine removal complexes system, it is characterised in that: the system includes wastewater collection pond (1), gives up
Water pump lifting pump (2), pH detector A(31), pH detector B(32), pH detector C(33), waste water mixing and pH regulating device
(4), high-precision proportional control valve A(51), high-precision proportional control valve B(52) including sedimentation basin (6)；
Wherein, wastewater collection pond (1) is connected to by pipeline with waste water pump elevator pump (2), and the output end of waste water pump elevator pump (2) is logical
The mixing of pipeline connection waste water and pH regulating device (4) are crossed, is detected in the arrival end setting pH of waste water mixing and pH regulating device (4)
Instrument A(31)；
Waste water mixing and pH regulating device (4) are made of anti-corrosion material, generally cylindrical, and blender is arranged in control device,
So that waste water is sufficiently mixed with highly basic；
The inside of waste water mixing and pH regulating device (4) is divided into mixing section 1, buffer area, mixing section 2；
Wherein, pH detector B(32), pH detector C(33), high-precision proportional control valve A(51) and high-precision proportional control valve B
(52) it is located in calcium hydroxide or sodium hydroxide medicine system pipeline,
In 1 rear end of initial adjustment stage, that is, mixing section, pH detector B(32 is set), intelligent controller accurately controls hydrogen according to this value of feedback
Calcium oxide input amount；PH detector C(33 is arranged in 2 rear end of accurate adjustment stage, that is, mixing section).
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| CN201920092453.XU CN209507709U (en) | 2019-01-21 | 2019-01-21 | A kind of accurate control pH value fluorine removal complexes system |
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| CN201920092453.XU CN209507709U (en) | 2019-01-21 | 2019-01-21 | A kind of accurate control pH value fluorine removal complexes system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109592772A (en) * | 2019-01-21 | 2019-04-09 | 信息产业电子第十设计研究院科技工程股份有限公司 | A kind of accurate control pH value fluorine removal complexes system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109592772A (en) * | 2019-01-21 | 2019-04-09 | 信息产业电子第十设计研究院科技工程股份有限公司 | A kind of accurate control pH value fluorine removal complexes system |
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