CN109336220A - Dye-printing desizing waste water PVA extraction element and method - Google Patents
Dye-printing desizing waste water PVA extraction element and method Download PDFInfo
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- CN109336220A CN109336220A CN201811425637.XA CN201811425637A CN109336220A CN 109336220 A CN109336220 A CN 109336220A CN 201811425637 A CN201811425637 A CN 201811425637A CN 109336220 A CN109336220 A CN 109336220A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 98
- 238000009990 desizing Methods 0.000 title claims abstract description 54
- 238000007639 printing Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000000605 extraction Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 230000000903 blocking effect Effects 0.000 claims abstract description 24
- 238000004043 dyeing Methods 0.000 claims abstract description 18
- 238000004064 recycling Methods 0.000 claims abstract description 12
- 239000007921 spray Substances 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 6
- 230000001351 cycling effect Effects 0.000 claims description 5
- 239000010865 sewage Substances 0.000 abstract description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 description 91
- 229920002451 polyvinyl alcohol Polymers 0.000 description 91
- 208000028659 discharge Diseases 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 230000006872 improvement Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 6
- 238000001311 chemical methods and process Methods 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 238000002306 biochemical method Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000004065 wastewater treatment Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000004753 textile Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000001112 coagulating effect Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- 230000004520 agglutination Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000007859 condensation product Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000005185 salting out Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 241000588624 Acinetobacter calcoaceticus Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- JGUQDUKBUKFFRO-UHFFFAOYSA-N chembl3184098 Chemical compound ON=C(C)C(C)=NO JGUQDUKBUKFFRO-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002068 microbial inoculum Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 239000003643 water by type Substances 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- 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
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of dye-printing desizing waste water PVA extraction element and method, the dye-printing desizing waste water PVA extraction element, rotating cylinder and water-supply-pipe including drum-shaped；Rotating cylinder opening down and being driven by driving mechanism rotates, and one end of water-supply-pipe offers spray hole and protrudes into the inner cavity of rotating cylinder, and the other end of water-supply-pipe is connected with dye-printing desizing waste water, is additionally provided with PVA collection output mechanism in the inner cavity of rotating cylinder.Revolving speed >=4000 rev/min of the rotating cylinder.The driving mechanism includes motor and gear, and it includes scraper that PVA, which collects output mechanism, and scraper two sides are equipped with the water blocking wing, forms PVA between the water blocking wing and scraper and collects discharge slot, PVA collects discharge slot and communicates with the PVA recycling bin outside rotating cylinder.The present invention can not only effectively extract the PVA in dye-printing desizing waste water, and at low cost, high-efficient, easy to implement, and the desized wastewater that can greatly meet dyeing & printing enterprise, which removes PVA before entering sewage disposal system, to be required.
Description
Technical field
The present invention relates to a kind of wastewater treatment equipment and method, more particularly to dye-printing desizing waste water and it is other containing
PVA extraction element and extracting method in PVA waste water, belong to technical field of waste water processing.
Background technique
Dyeing is the important component and the main waste water source of textile industry of textile industry.In dyeing waste water
A large amount of pollutant sources slurry used in sizing process, predominantly polyvinyl alcohol (PVA) slurry, PVA have good
Adhesion, serous coat obdurability and wearability, and it is at low cost, it is widely applied during sizing fabric.However, weaving
After the completion of process, the slurry in embryo cloth will will affect the water absorbing properties of fabric, also will affect the processing quality of dyed and finished products.Cause
This, in dyeing and finishing processing, it is necessary to slurry coated on fabric be removed, desizing treatment is carried out.
Common desizing method has enzyme desizing, thermokalite desizing, sour desizing and oxidation desizing method etc., these desizing methods all can
A large amount of high concentration desized wastewaters are generated, CODcr is usually above 10000mg/L, wherein 75% is generated by PVA.PVA belongs to height
The biodegradable organic matter of difficulty, if the CODcr of PVA1799 is 18000mg/kg, BOD5 is 800 mg/kg, BOD5/CODcr
Ratio it is very low, it is difficult to be biodegradable, PVA can largely be accumulated in water environment, because it makes with biggish surface-active
The water body of receiving generates a large amount of foams, and viscosity increases the activity for influencing aerobe, but also can promote weight in water body deposit
The migration of metal discharges, and water body environment is destroyed, to cause serious water pollution.
Country establishes and practices the theory of " blue montains and green waters is exactly Kingsoft Yin Shan ", using protection environment as fundamental state policy.
In GB4287-2012 " textile dyeing and finishing industrial water pollution object discharge standard " standard, existing enterprise CODcr direct emission limit value is
100mg/L, indirect emission limit are 200mg/L, and creating enterprise CODcr direct emission limit value is 80mg/L, indirect emission limit
For 200mg/L.In order to adapt to the requirement of environmental protection work under the new situation, industrial wastewater is strengthened in environmental protection plans and is controlled
Reason, and attached most importance to the industries such as weave, print and dye, to strengthen the environmental administration as principle, further increases pollution control and technology changes
Dynamics is made, environmental protection regulation defended war is won, realizes green clean manufacturing.
Currently, the method for processing desized wastewater is roughly divided into two major classes, i.e. physico-chemical process and biochemical method both at home and abroad.In physico-chemical process
Mainly there is foam fraction factor, ultrafiltrationmembrane process, saltouts, is oxidizing, microwave radiation, the technologies such as photocatalysis.Biochemical method is frequently with work
Property sludge pass through the biological reinforcing technology of the efficient PVA degradation bacteria of separation using the metabolism of microorganism, degradation
PVA。
Chinese invention patent application, application No. is 201610482547.9 to disclose a kind of two-step method of desized wastewater containing PVA
Processing and process of reusing, two-step method include the membrane separation process system of desized wastewater containing PVA and vacuum distillation concentration systems.And it uses
A problem existing for membrane separation process is: after film device generally runs half a year, only with permeate backwash cleaning method oneself not
It is able to maintain the flux stabilized of film, needs to clean using medicament, but the recovery of membrane flux still difficulty is big, seriously polluted, the import of film
Membrane module is expensive, and operating cost is big, this problem not yet solves, and is difficult industrially to promote and apply.
Chinese invention patent, Patent No. 201410050596.6 disclose a kind of place of high concentration desized wastewater containing PVA
Manage method and apparatus, including wastewater equalization pond, coagulative precipitation tank, pond of saltouing, advanced oxidation reaction sedimentation basin, iris type anoxic are detested
Oxygen reaction tank, aerobic tank and secondary settling tank；Coagulative precipitation tank, saltout pond and advanced oxidation reaction sedimentation basin include be mixed area and
Settling zone, iris type anoxic anaerobic reation pool include simultaneous oxygen section, anoxic section and the anaerobism section being separated by flow-stopping plate；Waste water warp
Conditioning tank regulating pondage and pH value saltout into pond of saltouing anti-subsequently into coagulative precipitation tank and coagulant hybrid reaction
Answer, pollutant is oxidized decomposition in advanced oxidation reaction sedimentation basin, enter back into iris type anoxic anaerobic reation pool, aerobic tank into
Row anoxic, anaerobic and aerobic react, after precipitation qualified discharge.Disadvantage is that: this method is thrown using physico-chemical process
Money is big, and processing step is complicated, adds reagent cost height, can generate secondary pollution, and sludge yield is big, and adding of agent system and
Measuring system operational administrative is complicated.
Chinese invention patent, Patent No. 201210167050.X disclose the minimizing technology of PVA in desized wastewater a kind of
And device, the desized wastewater containing PVA are mixed with the agglutination agent solution being made of borax, anhydrous sodium sulphate；Mixed desized wastewater and
Agglutination agent solution enters the reaction of PVA agglutometer, generates PVA solid condensation product；The PVA solid condensation product of generation and waste water
Solidliquid mixture is discharged in PVA agglutometer.The minimizing technology belongs to the PVA of salting out method recycling desized wastewater, but this
There is also following disadvantages for method: (1) removal effect of PVA by waste water itself PVA mass concentration is influenced, mass concentration compared with
When big, removal efficiency is higher, on the contrary then effect is undesirable, generally requires in 5g/L or more, could obtain preferable effect；
(2) dosage of salting-out agents (sodium sulphate) is most important for this method, and dosage is more, and removal efficiency is higher, but simultaneously
It is easy to keep the salt content of water outlet excessively high, such waste water will lead to microbial cell dehydration, biology after entering biological treatment system
Activity decline even completely loses, and is unfavorable for subsequent biological treatment, and sodium sulphate dosage excessively also will increase cost, lead to wave
Take, in addition, its complex disposal process, higher cost.
Chinese invention patent, Patent No. 200910115239.2 disclose a kind of inorganic composite floculant, system
Preparation Method and purposes for handling high-concentration dye-printing desizing waste water.Disadvantage is that: complex for operation step, Er Qieyou
Machine synthetic polymeric flocculant is used alone processing dyeing waste water and is also easy to produce noxious material, to further biochemical treatment dyeing waste water
Cause difficulty.
Chinese invention patent, Patent No. 201410004931.9 disclose the acinetobacter calcoaceticus bacterial strain of degradable PVA a kind of,
It can be used for preparing the microorganism desizing microbial inoculum of the industrial cotton desized wastewater processing such as weaving, but this method is for practical printing and dyeing
Desized wastewater PVA processing cost is higher, and is difficult to solving practical problems.
Chinese invention patent, Patent No. 201210170091.4 disclose a kind of optical electrical of polyvinyl alcohol waste water
Fenton treatment process, but there is investment greatly in this method, and operating cost is high, the disadvantage of operational administrative complexity.
In conclusion biochemical method handles PVA waste water, time-consuming for degradation, poor processing effect；Though membrane separation process is easy to operate,
It consumes energy low, but fouling membrane is serious, film imported component price is expensive；The operating cost of high-level oxidation technology is high, is difficult industrially
It promotes the use of；Using saltouing, though absorption method can make resource rational utilization, after saltouing water due to salt content it is very high, into biology
It will lead to microbial cell dehydration, bioactivity decline when handling structures, or even completely lose, biomembrane bulk falls off, salt
Bleed can not individually carry out biological treatment, need to first take measures to reduce salt density；There is also the secondary dirts to environment for some
Dye, thus energy consumption, improvement, in terms of there are many urgent need to resolve, at home and abroad, contain
The dye-printing desizing waste water of PVA, which is administered, becomes the problem that annoying dyeing for a long time.
It can be seen that, on the one hand, traditional dye-printing desizing waste water treatment process such as biochemical method, physico-chemical process or biochemical materialization combined method
Deng all there is respective limitation, defect and deficiency, numerous patented technologies can not put into actual use very well, cannot be very
The practical problem of dyeing and finishing sewage treatment is solved well, and the processing recycling of desized wastewater PVA becomes the bottleneck of enterprise development；Another party
Face, though PVA has environmental problem, its sizing performance is good, so that PVA is in sizing fabric, there are also markets, in recent years with textile industry
Rapid development rise to thousands of, even tens of thousands of mg/ by original hundreds of mg/L so that the CODcr in waste water is sharply increased
L, the dyeing & printing enterprise of usual one slightly scale produce 6000 tons or more the high CODcr desized wastewaters containing PVA, enormous amount daily.Specially
In 200mg/L, BOD5 in 50mg/L or so, desized wastewater must voluntarily be located industry sewage treatment enterprise water inlet index CODcr in advance
Reason reaches the index just and can be transferred to that professional sewage treatment enterprise is further to be handled.For this purpose, numerous dyeing & printing enterprise investments are huge
Big financial resources, manpower, exhaustive various measures reduce desized wastewater CODcr, but the effect is unsatisfactory.Low cost, high efficiency, satisfaction
The processing technique of enterprise practical demand, the feasible desized wastewater of green, is the demand that enterprise is most urgent instantly.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, and printing and dyeing can not only effectively be extracted by providing one kind
PVA in desized wastewater, and it is at low cost, and high-efficient, easy to implement, the desized wastewater that can greatly meet dyeing & printing enterprise is entering
The dye-printing desizing waste water PVA extraction element that PVA removal is required before sewage disposal system.Meanwhile the present invention also provides one kind to adopt
With the dye-printing desizing waste water PVA extracting method of above-mentioned apparatus.
In order to solve the above technical problems, the present invention uses such a dye-printing desizing waste water PVA extraction element, including drum
The rotating cylinder and water-supply-pipe of shape；The rotating cylinder opening down and being driven by driving mechanism rotates, and one end of the water-supply-pipe opens up
There is spray hole and protrude into the inner cavity of rotating cylinder, the other end of the water-supply-pipe is connected with dye-printing desizing waste water, in the rotating cylinder
Inner cavity is additionally provided with PVA and collects output mechanism.
As a kind of preferred embodiment of the invention, revolving speed >=4000 rev/min of the rotating cylinder.
As an improvement of the present invention, the revolving speed of the rotating cylinder is preferably between 6000~12000 revs/min.
As a further improvement of the present invention, the revolving speed of the rotating cylinder is most preferably between 7000~9000 revs/min.
As a kind of preferred embodiment of the invention, the driving mechanism includes motor and is connected with the motor output shaft
Gear, it includes the scraper with rotating cylinder internal chamber wall face interval setting that the PVA, which collects output mechanism, the scraper
Two sides are equipped with the water blocking wing made of baffle, form PVA between the water blocking wing and scraper and collect discharge slot, the PVA is received
Collection discharge slot is communicated with the PVA recycling bin being arranged in outside rotating cylinder.
As an improvement of the present invention, it is equipped with pallet in the lower part of the rotating cylinder, the water-supply-pipe passes through the bottom of pallet
Plate is simultaneously tightly connected with bottom plate, and the scraper and the water blocking wing are uprightly fixed on the bottom plate of the pallet, at the bottom of the pallet
Outside on plate and positioned at the water blocking wing is equipped with retaining ring, and the PVA collects discharge slot and passes through the bottom plate and PVA recycling bin phase
It is logical, drainage hole is offered on the bottom plate, the drainage hole is communicated by pipeline with water circulation tank.
As a further improvement of the present invention, it further includes for cleaning the scraper and gear that the PVA, which collects output mechanism,
The cleaning pipe of hydrofoil.
In order to solve the above technical problems, the present invention uses such a dye-printing desizing waste water PVA extracting method, PVA will be contained
Dye-printing desizing waste water input in high-speed rotating rotating cylinder through water-supply-pipe and collide with the inner cavity wall surface of rotating cylinder, collide
The PVA in dye-printing desizing waste water afterwards separates from waste water and is adsorbed in the inner cavity wall surface of rotating cylinder, is adsorbed on rotating cylinder inner cavity wall surface
PVA by PVA collect output mechanism be discharged out of rotating cylinder.
As a kind of preferred embodiment of the above method, revolving speed >=4000 rev/min of the high-speed rotating rotating cylinder.
As another preferred embodiment of the above method, the liquid in dye-printing desizing waste water after colliding passes through
The pallet that rotating cylinder lower part is arranged in is sent into water circulation tank and carries out cycling and reutilization.
After above-mentioned dye-printing desizing waste water PVA extraction element and method, the invention has the following advantages:
The present invention provides PVA extraction element and method in the waste water for meeting enterprise practical demand, solves dyeing many decades
Come the great difficult problem that not can effectively solve always, the present invention handles dye-printing desizing waste water, such as raw it is not necessary that conventional processes are added
The flocculant etc. that change method, physico-chemical process must use is also easy to produce the medicament of secondary pollution, and no material consumption, and processing overall process is real
Butanedionedioxime is showed.
Dye-printing desizing waste water PVA extraction element occupied area of the present invention is minimum, and waste water treatment efficiency is high, and treatment process
Secondary pollution will not be generated, treated, and desized wastewater can be used as process liquor cycling and reutilization, substantially reduce sewage discharge, be
A kind of environmentally protective desized wastewater treatment process.
The present invention continuously large volume handling dye-printing desizing waste water, recycling PVA, guarantee dyeing and finishing front and back technique can produce mating
Operation, avoids being unable to full production because of the limitation of draining, greatly meets the needs of actual industrial production.
The present invention overcomes the investment of physico-chemical process and biochemical method processing method without building the various functional pools of wastewater treatment
Greatly, operating cost is high, disadvantage of operational administrative complexity, and the present invention has that low energy consumption, it is low with operating cost, easy to operate to invest
The risk of discharge of wastewater pollution environment can be effectively reduced in feature.
Detailed description of the invention
Below in conjunction with attached drawing, specific embodiments of the present invention will be described in further detail.
Fig. 1 is a kind of structural schematic diagram of dye-printing desizing waste water PVA extraction element of the present invention, does not show driving mechanism in figure.
Fig. 2 is the schematic front view of dye-printing desizing waste water PVA extraction element of the present invention.
Fig. 3 is the schematic cross-sectional view in Fig. 2 along line A-A, shows driving mechanism in figure.
Fig. 4 is a kind of mounting structure schematic diagram of water-supply-pipe in the present invention, PVA collection output mechanism and pallet.
Fig. 5 is the schematic top plan view of Fig. 4.
Specific embodiment
A kind of dye-printing desizing waste water PVA extraction element referring to figs. 1 to 5, rotating cylinder 1 and water delivery including drum-shaped
Pipe 2；The rotating cylinder 1 is preferably made of the materials such as carbon fibre composite or glass fiber reinforced plastics composite material or stainless steel, the rotating cylinder 1
It is opening down and driven and rotate by driving mechanism 3, one end 2-1 of the water-supply-pipe 2 offers spray hole 2a and protrudes into rotating cylinder
1 inner cavity, the spray hole 2a can only offer one, can also offer several, the other end 2-2 of the water-supply-pipe 2
It is connected with dye-printing desizing waste water, is additionally provided with PVA in the inner cavity of the rotating cylinder 1 and collects output mechanism 4.In the present invention, it needs
Illustrate, the waste water not only includes dye-printing desizing waste water, further includes other waste water containing PVA, such as alkali decrement waste water etc. should
PVA extraction element is applicable not only to dye-printing desizing waste water, can equally be well applied to other waste water containing PVA, and other waste water containing PVA use
The PVA extraction element also belongs to the scope of the present invention.
As a kind of preferred embodiment of the invention, revolving speed >=4000 rev/min of the rotating cylinder 1.Using such turn
After speed, after high velocity impact occurs for the inner cavity wall surface of waste water containing PVA and rotating cylinder 1, PVA can be separated from waste water and is adsorbed in rotating cylinder 1
Inner cavity wall surface on.
As an improvement of the present invention, the revolving speed of the rotating cylinder 1 most preferably exists preferably between 6000~12000 revs/min
Between 7000~9000 revs/min.After above-mentioned revolving speed, PVA can not only be separated from waste water, and be implemented also more convenient and steady
It is fixed.
As a kind of preferred embodiment of the invention, as shown in Figures 1 to 5, the driving mechanism 3 includes motor 3-1
And the gear 3-2, the gear 3-2 being connected with motor 3-1 output shaft preferably use belt gear,
When work, motor 3-1 is mounted on the shaft 1a at 1 top center of rotating cylinder by belt gear driving and rotates, to drive
Rotating cylinder 1 rotates simultaneously, and it includes with the 1 internal chamber wall face interval of rotating cylinder setting preferably by plate that the PVA, which collects output mechanism 4,
The two sides of manufactured scraper 4-1, the scraper 4-1 are equipped with the water blocking wing 4a made of baffle, and the water blocking wing 4a is preferentially in V
Font, naturally it is also possible to be other shapes, water blocking wing 4a can be fixedly mounted on the two sides of scraper 4-1, can also independently set
It sets, forms PVA between the water blocking wing 4a and scraper 4-1 and collect discharge slot 4b, the PVA collects discharge slot 4b and setting
PVA recycling bin 5 outside rotating cylinder 1 communicates.In the present invention, it can also be only scraper 4- that the PVA, which collects output mechanism 4,
1, the PVA scraped on 1 inner cavity wall surface of rotating cylinder is collected in scraper side by scraper 4-1, then falls and is expelled to from scraper side
PVA recycling bin 5.
As an improvement of the present invention, as shown in Figures 1 to 5, pallet 6, the support are equipped in the lower part of the rotating cylinder 1
Disk 6 it is opening up, the water-supply-pipe 2 pass through pallet 6 bottom plate 6-1 and with bottom plate 6-1 be tightly connected, the scraper 4-1
It is uprightly fixed on water blocking wing 4a on the bottom plate 6-1 of the pallet 6, as shown in Figure 1 to Figure 3, scraper 4-1 and water blocking wing 4a's
Bottom is fixed on bottom plate 6-1, and the plate body of scraper 4-1 and water blocking wing 4a protrude into the inner cavity of rotating cylinder 1, at the bottom of the pallet 6
Outside on plate 6-1 and positioned at water blocking wing 4a is equipped with retaining ring 6a, and the retaining ring 6a will be for that will isolate and fall from waste water
Enter liquid in pallet 6 and PVA collects that discharge slot 4b is mutually isolated, and the PVA collects discharge slot 4b and passes through the bottom plate 6-1
It is communicated with PVA recycling bin 5, drainage hole 6b is offered on the bottom plate 6-1, the drainage hole 6b is recycled by pipeline 9 and water
Pond 7 communicates.In the present invention, water circulation tank 7, the liquid isolated from waste water directly can also be set in the lower section of rotating cylinder 1
It falls directly into water circulation tank 7, the scraper 4-1 and water blocking wing 4a can be fixedly mounted on water circulation tank 7, not shown in figure.
As a further improvement of the present invention, as shown in figures 1,4 and 5, it further includes for clear that the PVA, which collects output mechanism 4,
Wash the cleaning pipe 8 of the scraper 4-1 and water blocking wing 4a.In the present invention, the preferably vertical arrangement of the cleaning pipe 8, in cleaning pipe
It can open up some cleaning holes on 8 tube wall, when work, the water in water circulation tank 7 can be pumped into cleaning pipe 8, water is from cleaning hole
In outward injection to being cleaned to scraper 4-1 and water blocking wing 4a.
A kind of dye-printing desizing waste water PVA extracting method referring to figs. 1 to 5 passes through the dye-printing desizing waste water containing PVA
Water-supply-pipe 2 is inputted in high-speed rotating rotating cylinder 1 and is collided with the inner cavity wall surface of rotating cylinder 1, the dye-printing desizing after colliding
PVA in waste water separates from waste water and is adsorbed in the inner cavity wall surface of rotating cylinder 1, and the PVA for being adsorbed on 1 inner cavity wall surface of rotating cylinder passes through
PVA collects output mechanism 4 and is discharged out of rotating cylinder 1.
In the present invention, revolving speed >=4000 rev/min of the high-speed rotating rotating cylinder 1.
As a kind of preferred embodiment of the above method, the liquid in dye-printing desizing waste water after colliding is by setting
It sets the pallet 6 in 1 lower part of rotating cylinder and is sent into the progress cycling and reutilization of water circulation tank 7.
As a kind of preferred course of work of the invention, referring to Fig. 1,2 and 3, motor 3-1 drives 1 high speed rotation of rotating cylinder,
Waste water containing PVA is ejected into the inner cavity wall surface of rotating cylinder 1 through water-supply-pipe 2 and collides with inner cavity wall surface, after colliding PVA from
The inner cavity wall surface that rotating cylinder 1 is separated and be adsorbed in waste water, the liquid after separation pass through the pallet 6 that 1 lower part of rotating cylinder is arranged in through arranging
Water hole 6b, pipeline 9 are sent into the progress cycling and reutilization of water circulation tank 7 and are scraped when the PVA of 1 inner cavity wall surface of rotating cylinder reaches certain thickness
Knife 4-1, which scrapes PVA, to fall, and collects discharge slot 4b by PVA and PVA is introduced to PVA recycling bin 5；Scraper 4-1 is equipped with
Water blocking wing 4a mitigates the workload of subsequent PVA dehydration for the PVA water blocking being scraped.The present invention can continuous work, process after
Waste water direct reuse, guarantee that dyeing & printing enterprise produces requirement to water resource.
Claims (10)
1. a kind of dye-printing desizing waste water PVA extraction element, it is characterised in that: rotating cylinder (1) and water-supply-pipe (2) including drum-shaped；
The rotating cylinder (1) opening down and being driven by driving mechanism (3) rotates, and one end (2-1) of the water-supply-pipe (2) offers
The other end (2-2) of spray hole (2a) and the inner cavity for protruding into rotating cylinder (1), the water-supply-pipe (2) is connected with dye-printing desizing waste water
It is logical, PVA, which is additionally provided with, in the inner cavity of the rotating cylinder (1) collects output mechanism (4).
2. dye-printing desizing waste water PVA extraction element according to claim 1, it is characterised in that: the revolving speed of the rotating cylinder (1)
>=4000 revs/min.
3. dye-printing desizing waste water PVA extraction element according to claim 2, it is characterised in that: the revolving speed of the rotating cylinder (1)
Between 6000~12000 revs/min.
4. dye-printing desizing waste water PVA extraction element according to claim 3, it is characterised in that: the revolving speed of the rotating cylinder (1)
Between 7000~9000 revs/min.
5. dye-printing desizing waste water PVA extraction element according to claim 1, it is characterised in that: driving mechanism (3) packet
The gear (3-2) for including motor (3-1) and being connected with motor (3-1) output shaft, the PVA collect output mechanism (4)
Including the scraper (4-1) being arranged with the rotating cylinder (1) internal chamber wall face interval, the two sides of the scraper (4-1) are equipped with by baffle
The manufactured water blocking wing (4a) forms PVA between the water blocking wing (4a) and scraper (4-1) and collects discharge slot (4b), described
PVA collects discharge slot (4b) and communicates with setting in the external PVA recycling bin (5) of rotating cylinder (1).
6. dye-printing desizing waste water PVA extraction element according to claim 5, it is characterised in that: under the rotating cylinder (1)
Portion is equipped with pallet (6), and the water-supply-pipe (2) passes through the bottom plate (6-1) of pallet (6) and is tightly connected with bottom plate (6-1), described
Scraper (4-1) and the water blocking wing (4a) are uprightly fixed on the bottom plate (6-1) of the pallet (6), the bottom plate in the pallet (6)
Outside on (6-1) and positioned at the water blocking wing (4a) is equipped with retaining ring (6a), and the PVA collects discharge slot (4b) and passes through the bottom
Plate (6-1) is communicated with PVA recycling bin (5), is offered on the bottom plate (6-1) drainage hole (6b), the drainage hole (6b)
It is communicated by pipeline with water circulation tank (7).
7. dye-printing desizing waste water PVA extraction element according to claim 5 or 6, it is characterised in that: the PVA collects row
Mechanism (4) further includes the cleaning pipe (8) for cleaning the scraper (4-1) and the water blocking wing (4a) out.
8. a kind of dye-printing desizing waste water PVA extracting method using dye-printing desizing waste water PVA extraction element described in claim 1,
It is characterized by: by the dye-printing desizing waste water containing PVA inputted in high-speed rotating rotating cylinder (1) through water-supply-pipe (2) and with rotating cylinder (1)
Inner cavity wall surface collide, the PVA in dye-printing desizing waste water after colliding is separated from waste water and is adsorbed in rotating cylinder (1)
Inner cavity wall surface, be adsorbed on the PVA of rotating cylinder (1) inner cavity wall surface by PVA and collect output mechanism (4) discharge out of rotating cylinder (1).
9. dye-printing desizing waste water PVA extracting method according to claim 8, it is characterised in that: described high-speed rotating turn
Revolving speed >=4000 rev/min of cylinder (1).
10. dye-printing desizing waste water PVA extracting method according to claim 8, it is characterised in that: the printing and dyeing after colliding
Pallet of the liquid by setting in rotating cylinder (1) lower part in desized wastewater is sent into water circulation tank and carries out cycling and reutilization.
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| CN201811425637.XA CN109336220A (en) | 2018-11-27 | 2018-11-27 | Dye-printing desizing waste water PVA extraction element and method |
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