CN107902791A - A kind of processing method and processing device of mechanical zinc-plating waste water - Google Patents
A kind of processing method and processing device of mechanical zinc-plating waste water Download PDFInfo
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- CN107902791A CN107902791A CN201711032927.3A CN201711032927A CN107902791A CN 107902791 A CN107902791 A CN 107902791A CN 201711032927 A CN201711032927 A CN 201711032927A CN 107902791 A CN107902791 A CN 107902791A
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- plating
- water
- mechanical zinc
- zinc
- clear water
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- 238000007747 plating Methods 0.000 title claims abstract description 165
- 238000012545 processing Methods 0.000 title claims abstract description 43
- 239000002351 wastewater Substances 0.000 title claims abstract description 32
- 238000003672 processing method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 175
- 238000000034 method Methods 0.000 claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 230000001105 regulatory effect Effects 0.000 claims abstract description 40
- 239000010802 sludge Substances 0.000 claims abstract description 34
- 238000011010 flushing procedure Methods 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 239000000126 substance Substances 0.000 claims description 35
- 238000005189 flocculation Methods 0.000 claims description 22
- 230000016615 flocculation Effects 0.000 claims description 22
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 20
- 229910052979 sodium sulfide Inorganic materials 0.000 claims description 14
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 11
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 238000006386 neutralization reaction Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 7
- 239000011790 ferrous sulphate Substances 0.000 claims description 7
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical group [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 7
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 7
- 229920002401 polyacrylamide Polymers 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 5
- 239000006228 supernatant Substances 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 238000003973 irrigation Methods 0.000 claims description 4
- 230000002262 irrigation Effects 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 abstract description 11
- 238000004065 wastewater treatment Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000005246 galvanizing Methods 0.000 abstract description 6
- 239000008399 tap water Substances 0.000 abstract description 4
- 235000020679 tap water Nutrition 0.000 abstract description 4
- 238000000746 purification Methods 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 28
- 238000011112 process operation Methods 0.000 description 18
- 101150054854 POU1F1 gene Proteins 0.000 description 16
- 239000002585 base Substances 0.000 description 13
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 229910001385 heavy metal Inorganic materials 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 239000010808 liquid waste Substances 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 238000002203 pretreatment Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 229920000881 Modified starch Polymers 0.000 description 1
- 239000004368 Modified starch Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 230000002925 chemical effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001139 pH measurement Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- -1 phosphate anion Chemical class 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000008237 rinsing water Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- 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
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Landscapes
- 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)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of processing method and processing device of mechanical zinc-plating waste water, belong to mechanical zinc-plating wastewater treatment and recycle utilization technology field.The plating cylinder of flushing water and galvanizing process that the method for the invention is used for galvanizing process by mechanical zinc-plating wastewater treatment and after adjusting adds water, and the whole technological process of mechanical zinc-plating is can be used for after wastewater treatment；Mechanical zinc-plating process causes waste water still not enough after thoroughly handling because plating piece drying moisture has certain loss, also remedies fresh tap water, therefore mechanical zinc-plating process is not required outside liquid and arranges, and is recycled in wastewater treatment water whole；The processing unit includes collecting pit, integral water purifier, sludge dewatering equipment, cistern and clear water regulating reservoir etc.；The present invention realize the collection of mechanical zinc-plating process discharge liquid, purification, adjusting and it is interior recycle, accomplished the external zero-emission of production process liquid, the processing unit technique is simple, easy to operate, stable.
Description
Technical field
The present invention relates to a kind of processing method and processing device of mechanical zinc-plating waste water, belongs to mechanical zinc-plating wastewater processing technology neck
Domain, Specifically, the processing for belonging to mechanical zinc-plating process spent process water recycle.
Background technology
Mechanical zinc-plating technology has many advantages, such as efficient, cost is low, energy consumption is small, technique is simple, environmental pollution is small.But
Contrasted with electrogalvanizing, hot-dip galvanizing technique, the characteristic of environmental protection of mechanical zinc-plating is opposite, because mechanical zinc-plating process process is same
There are the discharge of liquid：1. the rinsing liquid discharge of generation is rinsed after plating wound packages material；2. slurry topples over generation in plating cylinder after having plated
Liquid emission；The liquid emission that flushing water produces when 3. plating piece and bead separate.This three classes relief liquor is finally entered and collected
In the seat pond on mechanical zinc-plating basis, analysis is found, it is Fe to collect mixed liquor2+、Zn2+The slightly acidic water solution of severe overweight.Text
Offer retrieval to show, existing water technology has the ability to handle these relief liquors of mechanical zinc-plating process completely and row up to standard
Put.Such as Chinese patent（Publication number：CN 103771629 A）A kind of pretreating process of galvanizing waste water is disclosed, it includes adding
Medicine, stirring, reaction, flocculation and precipitation process, zinc ion and phosphate anion content meet row up to standard after galvanizing wastewater treatment
Put requirement.Chinese patent（Publication number：CN 106995221 A）A kind of heavy metal ion with autoflocculation is disclosed to go
Except agent and its synthetic method, starch is modified as cationic xanthogenation modified starch, and conduct by it through sequence of chemical effect
The remover of heavy metal ions in wastewater, realizes to the absorption of the highly effective chelating of heavy metal ion and autoflocculation sedimentation, need not
It is extra add to greatly improve in the case of flocculant or coagulant the effective of complicated effluent containing heavy metal ions is removed, applied to each
The processing of the complicated effluent containing heavy metal ions of kind.Chinese patent（Publication number：CN 106892528 A）Disclose a kind of steel tower hot dip
The environment-friendly processing unit of zinc waste water, according to aerating oxidation, precipitation and the principle of biofiltration, it is pre- that processing unit includes degreasing water for it
First stage precipitation tank, collecting-tank and the flotation tank of processing, the aerating regulation mixed after degreasing water pretreatment with acid, alkali, washing waste water
Pond, second-level settling pond and biofilter composition.Alkali cleaning and pickling zone are back to after wastewater treatment.Chinese patent（Publication number：CN
205528113 U）A kind of galvanized liquid waste processing unit is disclosed, it includes regulating reservoir, pre-treatment all-in-one machine, post processing all-in-one machine
Formed with filter press, galvanized liquid waste reaches discharge standard after processing.Using the processing method of above-mentioned galvanized liquid waste, mechanical plating
Zinc waste water can also realize qualified discharge, but this causes whole technological process continuously to supplement cleaning tap water, and in a steady stream not
Although disconnected ground emission treatment water, the method for this end treatment meet the standard requirement of mechanical zinc-plating discharging of waste liquid, but not
Clean manufacturing truly.
Mechanical zinc-plating process process includes rinsing water, plating solution water in plating cylinder with water（Addition in plating process plating cylinder
Water）, separation when spray or rinse water, the loss of mechanical zinc-plating process process water include the baking of plating piece after separating（Moisture
Evaporation）, the water taken away of water treatment procedure mud cake or body refuse.So plating solution environment from mechanical zinc-plating process process, with water and liquid
Body discharge considers, accomplishes that cleaning tap water can maintain mechanical zinc-plating process process liquids to recycle without supplementing or supplementing on a small quantity
It is then the target that this area scientific worker pursues always.At present, environmental protection pressure increases year by year, therefore studies technical process waste water
Processing unit simultaneously realizes that internal circulation of liquid utilization then becomes the skilled artisan's urgent problem to be solved.
The content of the invention
It is an object of the invention to overcome the shortcomings of existing galvanized liquid waste treatment technology, there is provided a kind of mechanical zinc-plating waste water
Processing method, waste water cannot be only used for the flushing water of galvanizing process after processing and adjusting in this method, can be used for zinc-plated
The plating cylinder addition water of process, in this way, can be used for the whole technological process of mechanical zinc-plating after wastewater treatment, is added, mechanical zinc-plating
Process because plating piece drying moisture have certain loss, cause waste water still not enough after thoroughly handling, also to add it is fresh originally
Water, therefore mechanical zinc-plating process is not required outside liquid and arranges, and is recycled in wastewater treatment water whole, specifically includes following steps：
（1）The waste water of mechanical zinc-plating process merges into collecting pit by the water outlet in foundation base pond, and liquid in pond is pumped into integration
The neutralization reaction area of water purifier, while chemicals dosing plant I adds sodium sulfide solution into liquid, pH sensors I measure integrated net
The pH value of hydrophone neutral zone liquid judges and performs the pH of the addition dosage, wherein pH sensors I that whether adjust sodium sulfide solution
Value is set as 7 ~ 9.
（2）Enter the flocculation zone of integral water purifier after the neutralized adjustment for the treatment of fluid, while chemicals dosing plant II is into liquid
Flocculant is added, wherein, flocculant is ferrous sulfate, the mixture of non-ionic polyacrylamide.
（3）Supernatant enters filtering area and enters the clear water catch basin of integral water purifier after filtering and collect stream after flocculation
Enter cistern and clear water regulating reservoir, the sludge slurry that whereabouts is precipitated after flocculation enters sludge dewatering equipment, and sludge slurry is through sludge dewatering equipment
Sludge silt dangerous waste is formed after processing；Clear water access mechanical zinc-plating flushing pipe into cistern is rushed for spray when separating
Wash.
（5）Chemicals dosing plant III adds phosphoric acid solution into the clear water for entering clear water regulating reservoir, while pH sensors II measure
The pH value of liquid and the addition dosage that chemicals dosing plant judges and perform whether to adjust phosphoric acid solution is fed back in clear water regulating reservoir, pH
The pH value setting value of sensor II is 4~5；The clear water access mechanical zinc-plating plating cylinder water lines handled through clear water regulating reservoir, are used
In washings and plating solution water；Waste water is completely used for the technical process of mechanical zinc-plating after system is handled, and processing water is in production
Completely internal circulation.
Preferably, step of the present invention（1）The mass percent concentration of middle sodium sulfide solution is 10%, and addition is every cube
Rice treatment fluid adds 2~3 liters of sodium sulfide solution.
Preferably, step of the present invention（2）The addition of middle flocculant for every cubic metre for the treatment of fluid be added in an amount of 2~
5g, wherein, the mass ratio between ferrous sulfate, non-ionic polyacrylamide is 5:1.
Another object of the present invention is to provide the processing method equipment therefor of the mechanical zinc-plating waste water, including collect
Pond, integral water purifier, sludge dewatering equipment, cistern and clear water regulating reservoir；Collecting pit and the water outlet in mechanical zinc-plating foundation base pond
Mouthful be connected, collecting pit is connected further through pipeline with integral water purifier, integral water purifier respectively with sludge dewatering equipment, water storage
Pond, clear water regulating reservoir are connected；Cistern is connected with mechanical zinc-plating flushing pipe, clear water regulating reservoir and mechanical zinc-plating plating cylinder water
Pipeline connects.
Preferably, equipped with metering water pump and blender in the pond of collecting pit of the present invention.
Preferably, the order flowed through inside integral water purifier of the present invention by treatment fluid is divided into neutralization reaction area, wadding
Coagulation zone and filtering area, neutralization reaction area are correspondingly provided with chemicals dosing plant I and pH sensors I, and flocculation zone is correspondingly provided with chemicals dosing plant II.
Preferably, clear water regulating reservoir of the present invention is furnished with chemicals dosing plant III and pH sensors II.
Integral water purifier of the present invention is market ripe, can be directly purchased in market, as the environmental protection of Yixing City tin China is set
The integral water purifier of standby Co., Ltd's production.
Sludge dewatering equipment of the present invention is market ripe, can be directly purchased in market, such as Yixing City tin China environmental protection equipment
The folded spiral shell formula dewaterer of Co., Ltd's production.
Mechanical zinc-plating waste water is completely used for mechanical zinc-plating process process after processing unit processing, and production process is because of plating
The water that part is dried and sludge is taken away and produced, which is lost, can rely on cleaning tap water supplement to keep balancing, namely mechanical zinc-plating process
Waste water is completely used for the technical process of mechanical zinc-plating, the processing water completely internal circulation in production of processing unit after processing.
Compared with prior art, beneficial effects of the present invention are：
（1）Present invention realizes to be recycled in the whole of mechanical zinc-plating process liquids, has accomplished production process liquid pair
Outer zero-emission.
Rinsing relief liquor, plating solution relief liquor, flushing relief liquor of the processing unit of the present invention to mechanical zinc-plating process, use
Collect, one purification and adjusting processing, after processing water outlet meet the technological requirement of mechanical zinc-plating, the plating for mechanical zinc-plating process
The interior water of cylinder and rinse water, have reached the interior circulation of technical process water, have realized the external zero-emission of production process liquid.
（2）Present invention is used for mechanical zinc-plating process process, and technique is simple, easy to operate, stable.
The present invention waste water processing method and processing device based on collect, one purify, adjust flow and preconditioning, in
With, flocculation, filtering, precipitation, dehydration, the principle that adjusts afterwards, processing and recycling for all relief liquors of mechanical zinc-plating process,
Processing unit skill is simple, easy to operate.
Brief description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the flow chart of wastewater treatment equipment of the present invention.
In figure：1-collecting pit；2- integral water purifiers；21-chemicals dosing plant I；22-chemicals dosing plant II；23-pH sensors
Ⅰ；3- sludge dewatering equipments；4-cistern；5-clear water regulating reservoir；51-chemicals dosing plant III；52- pH sensors II；6- machineries
Zinc-plated foundation base pond；7- plates bucket.
Embodiment
Below in conjunction with the accompanying drawings and mechanical zinc-plating process flow is described in further detail the present invention, it is clear that the embodiment described
Only part of the embodiment of the present invention, instead of all the embodiments；Based on the embodiment of the present invention, those skilled in the art
The all other embodiments obtained on the premise of creative work is not made, belong to protection scope of the present invention.
Mechanical zinc-plating wastewater treatment equipment used in the embodiment of the present invention 1 ~ 3, the processing unit include collecting pit 1, integration
Water purifier 2, sludge dewatering equipment 3, cistern 4 and clear water regulating reservoir 5, collecting pit 1 and the water outlet phase in mechanical zinc-plating foundation base pond 6
Even, collecting pit 1 is connected further through pipeline with integral water purifier 2, integral water purifier 2 respectively with sludge dewatering equipment 3, cistern
4th, clear water regulating reservoir 5 is connected；Cistern 4 is connected with mechanical zinc-plating flushing pipe, and clear water regulating reservoir 5 is used with mechanical zinc-plating plating cylinder
Water lines connect；Waste water is completely used for the technical process of mechanical zinc-plating after processing unit is handled, and the processing water of processing unit exists
Completely internal circulation in production（As shown in Figure 1）.
The order flowed through described in the present embodiment inside integral water purifier 2 by treatment fluid is divided into neutralization reaction area, flocculation zone
And filtering area, neutralization reaction area are correspondingly provided with chemicals dosing plant I and pH sensors I, flocculation zone is correspondingly provided with chemicals dosing plant II.
As another embodiment of the invention, metering water pump and blender are housed in the pond of collecting pit 1；Clear water is adjusted
It is furnished with chemicals dosing plant III 51 and pH sensors II 52 in pond 5.
Embodiment 1
A kind of processing method of mechanical zinc-plating waste water, specifically includes following steps：The waste water of mechanical zinc-plating process is by foundation base pond
Water outlet merge into collecting pit 1, the blender work of collecting pit 1, liquid is pumped into the integral water purifier 2, liquid in pond
Matter is added with the dosage of every cubic metre of 2 liters for the treatment of fluid addition into liquid into chemicals dosing plant I 21 while integral water purifier 2
The sodium sulfide solution that percent concentration is 10% is measured, while pH sensors I 23 measure the pH of 2 neutral zone liquid of integral water purifier
It is worth and feeds back to chemicals dosing plant I 21 and judges and perform the addition dosage for whether adjusting sodium sulfide solution.The neutralized adjustment for the treatment of fluid
Enter the flocculation zone of integral water purifier 2 afterwards, while chemicals dosing plant II 22 adds 2g's into liquid with every cubic metre for the treatment of fluid
Dosage adds the flocculant of ferrous sulfate+non-ionic polyacrylamide composition（Mass ratio is 5:1）.Supernatant passes through after flocculation
Enter the clear water catch basin of integral water purifier 2 after filter and collect and flow into cistern 4 and clear water regulating reservoir 5, under being precipitated after flocculation
The sludge slurry fallen enters spiral sludge dewatering machine 3, and sludge slurry forms sludge silt dangerous waste after the processing of spiral sludge dewatering machine 3.Into
Enter the clear water access mechanical zinc-plating flushing pipe of cistern 4 for spray irrigation when separating.Chemicals dosing plant III 51 is to entrance
The phosphoric acid solution that mass percent concentration is 10% is added in the clear water of clear water regulating reservoir 5, while pH sensors II 52 measure clear water
The pH value of liquid and feed back to chemicals dosing plant III 51 in regulating reservoir 5 and judge and perform the addition dosage for whether adjusting phosphoric acid solution,
The pH value setting value of the pH sensors II 52 is 4.The clear water access mechanical zinc-plating plating cylinder water pipe handled through clear water regulating reservoir 5
Road, for washings and plating solution water.
Detailed mechanical zinc-plating process flow and wastewater treatment recycle as follows：
Charging：By pre-treatment（Surface is without fat, rustless）Ф 1.8 × 20 300 kg steel nails and 150 kg beades（Ф 0.5~
1）Load mechanical zinc-plating equipment plating cylinder.
Rinsing：It is appropriate that the clear water through the adjusting of clear water regulating reservoir 5 processing described in the present embodiment is added into plating cylinder, cylinder is plated and rotates
1~2 min；
Change water：Washings in plating cylinder are toppled over, the clear water through the adjusting of clear water regulating reservoir 5 processing described in the present embodiment is added again and fits
Amount, the rinsing liquid poured out flow into mechanical zinc-plating foundation base pond 6 and enter the collecting pit 1 by water outlet.
PH is adjusted：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, China Machine Press,
In October, 2013 first edition, page 198）.
Establish basic unit：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, mechanical industry is published
Society, in October, 2013 first edition, page 198）.
Coating thickens：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, mechanical industry is published
Society, in October, 2013 first edition, page 199）, thicken 1 time.
Strengthen：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, China Machine Press,
In October, 2013 first edition, page 199）.
Discharging separates：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, mechanical industry is published
Society, in October, 2013 first edition, page 199）, rinse during separation using the water in the cistern 4, plate the liquid poured out in cylinder
Mechanical zinc-plating foundation base pond 6 is finally flowed into shower water and the collecting pit 1 is entered by water outlet with separation.
Drying：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, China Machine Press,
In October, 2013 first edition, page 199）, the moisture evaporation on drying course plating piece surface, plating piece surface is in drying regime, detection hair
Existing thickness of coating is qualified, and presentation quality is met the requirements.
Embodiment 2
A kind of processing method of mechanical zinc-plating waste water, specifically includes following steps：The relief liquor of mechanical zinc-plating process is by foundation base
The water outlet in pond merges into collecting pit 1, and the blender of collecting pit 1 works, and liquid is pumped into the integral water purifier 2, liquid in pond
Chemicals dosing plant I 21 adds 3 liters of dosage addition into liquid with every cubic metre for the treatment of fluid while body enters integral water purifier 2
Mass percent concentration is 10% sodium sulfide solution, while pH sensors I 23 measure 2 neutral zone liquid of integral water purifier
PH value simultaneously feeds back to the judgement of chemicals dosing plant I 21 and performs the addition dosage for whether adjusting sodium sulfide solution.The neutralized tune for the treatment of fluid
Enter the flocculation zone of integral water purifier 2 after whole, while chemicals dosing plant II 22 adds 5g into liquid with every cubic metre for the treatment of fluid
Dosage add the flocculant of ferrous sulfate+non-ionic polyacrylamide composition（Mass ratio is 5:1）.Supernatant passes through after flocculation
Enter the clear water catch basin of integral water purifier 2 after filtering and collect and flow into cistern 4 and clear water regulating reservoir 5, precipitated after flocculation
The sludge slurry of whereabouts enters spiral sludge dewatering machine 3, and sludge slurry forms sludge silt dangerous waste after the processing of spiral sludge dewatering machine 3.
Clear water into cistern 4 accesses mechanical zinc-plating flushing pipe for spray irrigation when separating.Chemicals dosing plant III 51 into
Enter the phosphoric acid solution for adding that mass percent concentration is 10% in the clear water of clear water regulating reservoir 5, while the measurement of pH sensors II 52 is clear
The pH value of liquid and feed back to chemicals dosing plant III 51 in water regulating reservoir 5 and judge and perform the addition agent for whether adjusting phosphoric acid solution
Amount, the pH value setting value of the pH sensors II 52 is 5.The clear water access mechanical zinc-plating plating cylinder handled through clear water regulating reservoir 5 is used
Water lines, for washings and plating solution water.
Detailed mechanical zinc-plating process flow and treatment fluid recycle as follows：
Charging：By pre-treatment（Surface is without fat, rustless）16 thickness of Ф, 2 mm 300 kg flat shims and 280 kg beades（Ф
2~4）Load mechanical zinc-plating equipment plating cylinder.
Rinsing：It is appropriate that the clear water through the adjusting of clear water regulating reservoir 5 processing described in the present embodiment is added into plating cylinder, cylinder is plated and rotates
1~2 min；
Change water：Washings in plating cylinder are toppled over, the clear water through the adjusting of clear water regulating reservoir 5 processing described in the present embodiment is added again and fits
Amount, the washings poured out flow into mechanical zinc-plating foundation base pond 6 and enter the collecting pit 1 by water outlet.
PH is adjusted：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, China Machine Press,
In October, 2013 first edition, page 198）.
Establish basic unit：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, mechanical industry is published
Society, in October, 2013 first edition, page 198）.
Coating thickens：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, mechanical industry is published
Society, in October, 2013 first edition, page 199）, thicken 4 times.
Strengthen：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, China Machine Press,
In October, 2013 first edition, page 199）.
Discharging separates：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, mechanical industry is published
Society, in October, 2013 first edition, page 199）, rinse during separation using the water in the cistern 4, plate the liquid poured out in cylinder
Mechanical zinc-plating foundation base pond 6 is finally flowed into shower water and the collecting pit 1 is entered by water outlet with separation.
Drying：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, China Machine Press,
In October, 2013 first edition, page 199）, the moisture evaporation on drying course plating piece surface, plating piece surface is in drying regime, detection hair
Existing thickness of coating is qualified, and presentation quality is met the requirements.
Embodiment 3
A kind of processing method of mechanical zinc-plating waste water, specifically includes following steps：The relief liquor of mechanical zinc-plating process is by foundation base
The water outlet in pond merges into collecting pit 1, and the blender of collecting pit 1 works, and liquid is pumped into the integral water purifier 2, liquid in pond
Chemicals dosing plant I 21 is added into liquid with the dosage of every cubic metre of 2.5 liters for the treatment of fluid addition while body enters integral water purifier 2
Enter the sodium sulfide solution that mass percent concentration is 10%, while pH sensors I 23 measure 2 neutral zone liquid of integral water purifier
PH value and feed back to chemicals dosing plant I 21 and judge and perform the addition dosage for whether adjusting sodium sulfide solution.Treatment fluid is neutralized
Enter the flocculation zone of integral water purifier 2 after adjustment, while chemicals dosing plant II 22 is added into liquid with every cubic metre for the treatment of fluid
The dosage of 3g adds the flocculant of ferrous sulfate+non-ionic polyacrylamide composition（Mass ratio is 5:1）.Supernatant after flocculation
Enter the clear water catch basin of integral water purifier 2 after filtering and collect and flow into cistern 4 and clear water regulating reservoir 5, sink after flocculation
The sludge slurry to fall that forms sediment enters spiral sludge dewatering machine 3, and sludge slurry forms sludge silt danger after the processing of spiral sludge dewatering machine 3
It is useless.Clear water into cistern 4 accesses mechanical zinc-plating flushing pipe for spray irrigation when separating.Chemicals dosing plant III 51 to
The phosphoric acid solution that mass percent concentration is 10% is added into the clear water of clear water regulating reservoir 5, while pH sensors II 52 measure
The pH value of liquid and feed back to chemicals dosing plant III 51 in clear water regulating reservoir 5 and judge and perform the addition agent for whether adjusting phosphoric acid solution
Amount, the pH value setting value of the pH sensors II 52 is 4.5；The clear water access mechanical zinc-plating plating cylinder handled through clear water regulating reservoir 5
With water lines, for washings and plating solution water.
Detailed mechanical zinc-plating process flow and treatment fluid recycle as follows：
Charging：By pre-treatment（Surface is without fat, rustless）Ф 4.0 × 50 250 kg steel nails and 200 kg beades（Ф 1~2）
Load mechanical zinc-plating equipment plating cylinder.
Rinsing：It is appropriate that the clear water through the adjusting of clear water regulating reservoir 5 processing described in the present embodiment is added into plating cylinder, cylinder is plated and rotates
1~2 min.
Change water：Washings in plating cylinder are toppled over, adds again and adjusts the clear of processing through clear water regulating reservoir 5 described in the present embodiment
Appropriate amount of water, the washings poured out flow into mechanical zinc-plating foundation base pond 6 and enter the collecting pit 1 by water outlet.
PH is adjusted：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, China Machine Press,
In October, 2013 first edition, page 198）.
Establish basic unit：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, mechanical industry is published
Society, in October, 2013 first edition, page 198）.
Coating thickens：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, mechanical industry is published
Society, in October, 2013 first edition, page 199）, thicken 2 times.
Strengthen：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, China Machine Press,
In October, 2013 first edition, page 199）.
Discharging separates：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, mechanical industry is published
Society, in October, 2013 first edition, page 199）, rinse during separation using the water in the cistern 4, plate the liquid poured out in cylinder
Mechanical zinc-plating foundation base pond 6 is finally flowed into shower water and the collecting pit 1 is entered by water outlet with separation.
Drying：Routinely mechanical zinc-plating process operation performs（Such as mechanical zinc-plating technical foundation, China Machine Press,
In October, 2013 first edition, page 199）, the moisture evaporation on drying course plating piece surface, plating piece surface is in drying regime, detection hair
Existing thickness of coating is qualified, and presentation quality is met the requirements.
Claims (7)
1. a kind of processing method of mechanical zinc-plating waste water, it is characterised in that specifically include following steps：
（1）The waste water of mechanical zinc-plating process merges into collecting pit by the water outlet in foundation base pond（1）, liquid in pond is pumped into one
Change water purifier（2）Neutralization reaction area, while chemicals dosing plant I（21）Sodium sulfide solution, pH sensors I are added into liquid（23）
Measure integral water purifier（2）The pH value of neutral zone liquid judges and performs the addition dosage for whether adjusting sodium sulfide solution, its
The pH value of middle pH sensors I is set as 7 ~ 9；
（2）Enter integral water purifier after the neutralized adjustment for the treatment of fluid（2）Flocculation zone, while chemicals dosing plant II（22）To liquid
Middle addition flocculant, wherein, flocculant is ferrous sulfate, the mixture of non-ionic polyacrylamide；
（3）Supernatant enters integral water purifier after filtering into filtering area after flocculation（2）Clear water catch basin and collect stream
Enter cistern（4）With clear water regulating reservoir（5）, the sludge slurry that whereabouts is precipitated after flocculation enters sludge dewatering equipment（3）, sludge slurry is through dirt
Mud dewaterer（3）Sludge silt dangerous waste is formed after processing；Into cistern（4）Clear water access mechanical zinc-plating flushing pipe be used for
Spray irrigation during separation；
（5）Chemicals dosing plant III（51）To entrance clear water regulating reservoir（5）Clear water in add phosphoric acid solution, while pH sensors II
（52）Measure clear water regulating reservoir（5）The pH value of middle liquid simultaneously feeds back to chemicals dosing plant（51）Judge and perform whether to adjust phosphoric acid molten
The addition dosage of liquid, pH sensors II（52）PH value setting value be 4~5；The clear water handled through clear water regulating reservoir 5 accesses machinery
Zinc-plated plating cylinder water lines, for washings and plating solution water；The technique that waste water is completely used for mechanical zinc-plating after system is handled
Process, handles water completely internal circulation in production.
2. the processing method of mechanical zinc-plating waste water according to claim 1, it is characterised in that：Step（1）Middle sodium sulfide solution
Mass percent concentration be 10%, addition adds 2~3 liters of sodium sulfide solution for every cubic metre for the treatment of fluid.
3. the processing method of mechanical zinc-plating waste water according to claim 1, it is characterised in that：Step（2）Middle flocculant adds
Enter amount and be added in an amount of 2~5g for every cubic metre for the treatment of fluid, wherein, between ferrous sulfate, non-ionic polyacrylamide
Mass ratio is 5:1.
4. the processing method equipment therefor of mechanical zinc-plating waste water described in any one of claim 1 ~ 3 claim, it is characterised in that：
Including collecting pit（1）, integral water purifier（2）, sludge dewatering equipment（3）, cistern（4）With clear water regulating reservoir（5）；Collecting pit
（1）With mechanical zinc-plating foundation base pond（6）Water outlet be connected, collecting pit（1）Further through pipeline and integral water purifier（2）Phase
Even, integral water purifier（2）Respectively with sludge dewatering equipment（3）, cistern（4）, clear water regulating reservoir（5）It is connected；Cistern（4）With
Mechanical zinc-plating flushing pipe connects, clear water regulating reservoir（5）It is connected with mechanical zinc-plating plating cylinder with water lines.
5. device according to claim 4, it is characterised in that：The collecting pit（1）Pond in equipped with metering water pump and stirring
Device.
6. device according to claim 4, it is characterised in that：The integral water purifier（2）What inside was flowed through by treatment fluid
Order is divided into neutralization reaction area, flocculation zone and filtering area, and neutralization reaction area is correspondingly provided with chemicals dosing plant I（21）With pH sensors I
（23）, flocculation zone is correspondingly provided with chemicals dosing plant II（22）.
7. device according to claim 4, it is characterised in that：The clear water regulating reservoir（5）Equipped with chemicals dosing plant III（51）With
PH sensors II（52）.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116559265A (en) * | 2023-07-05 | 2023-08-08 | 昆明理工大学 | Method and device for monitoring mechanochemical activation of metal powder in dynamic environment |
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| US5460848A (en) * | 1994-04-07 | 1995-10-24 | Madison Chemical Co., Inc. | Composition and process for mechanical plating of nickel-containing coatings on metal substrates |
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| CN116559265A (en) * | 2023-07-05 | 2023-08-08 | 昆明理工大学 | Method and device for monitoring mechanochemical activation of metal powder in dynamic environment |
| CN116559265B (en) * | 2023-07-05 | 2023-09-01 | 昆明理工大学 | Method and device for monitoring mechanochemical activation of metal powder in dynamic environment |
| US11959869B1 (en) | 2023-07-05 | 2024-04-16 | Kunming University Of Science And Technology | Method and device for monitoring the mechanochemical activation of metal powders in dynamic electrochemical environment |
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Application publication date: 20180413 |