CN108911321A - The method of cutting fluid waste liquid water-oil separating - Google Patents
The method of cutting fluid waste liquid water-oil separating Download PDFInfo
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- CN108911321A CN108911321A CN201810622727.1A CN201810622727A CN108911321A CN 108911321 A CN108911321 A CN 108911321A CN 201810622727 A CN201810622727 A CN 201810622727A CN 108911321 A CN108911321 A CN 108911321A
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- cutting fluid
- waste liquid
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- liquid
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- 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
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- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- 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
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- 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)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
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Abstract
The present invention relates to the methods of cutting fluid waste liquid water-oil separating, include the following steps：To liquid storage container after step (1) collection cutting fluid waste liquid filtering scrap；Cutting fluid waste liquid in step (1) is evacuated in centrifuge by step (2) by liquid storage container；Sea salt will be added in the centrifuge in step (2) in step (3), opens centrifuge rotation；Step (4) stops the centrifuge in step (3), stands to water-oil separating, and acquisition upper solution is waste oil liquid, and lower layer's solution is salt water；Step (5) releases lower layer's salt water from the centrifugation motor spindle in step (4) and recycles sea salt after moisture evaporation to water tank；Step (6) extracts the waste oil liquid of step (4) at the middle and upper levels using gear pump, carries out post-processing；Oil-water separation method provided by the invention, it is at low cost, sea salt is reusable, pollution-free, Environmental Safety, there is huge industrial application value.
Description
Technical field
The present invention relates to liquid waste disposal technique fields, the more particularly to method of cutting fluid waste liquid water-oil separating.
Background technique
With going from strength to strength for National Industrial strength, in the industrial production, the dosage of cutting fluid increases year by year；According to China
Industry information network data, 720,000 tons of the dosage annual consumption in 2013 of cutting fluid, year-on-year annual consumption in 2012 increase
16.48% (data source China's Industry Information Network)；Exactly Chinese cutting fluid development trend preferable period at present, China's cutting
Liquid dosage is increased with certain proportion year by year；Cutting fluid is divided into oil base cutting fluid and water-base cutting fluid, according to the U.S. not in it is more
Ni Ya group arrange about in global cutting fluid demand structure data, oil base cutting fluid accounts for 21%；Therefore water-base cutting fluid city
Field accounting is very big；It and is 1 with the quality proportioning of water in general water-base cutting fluid use：20, in other words generally in cutting fluid waste
It include water 90%-95%, mineral oil 0%-8% and surfactant 2%-5% in liquid.But the above-mentioned cutting fluid that mixes with water passes through
The cutting fluid waste liquid substantial amounts for crossing industrial application generation, the water-oil separating processing about water-base cutting fluid waste liquid is always industry
An interior problem.
There are two types of the major ways of traditional cutting fluid waste liquid water-oil separating processing：One kind is distillation under vacuum, another
Alkali neutralisation is used again for acidity demulsification；Wherein there are several big problems for distillation under vacuum：First equipment is expensive, takes up a large area；The
Two energy-output ratios are big；Third processing speed is slow.And the acid neutralisation again that is demulsified, although this method is compared at distillation under vacuum
Reason waste liquid is cheap, but the chemical material for needing to select is more, and sulfuric acid or hydrochloric acid is usually selected to be used to make demulsifier, polymerised sulphur
Sour ferrous iron is as sedimentation agent, hydrogen peroxide as fungicide, sodium hydroxide or potassium hydroxide as acid acceptor；This method
One raw material are not easy to obtain in the Nature, and sulfuric acid, hydrochloric acid, sodium hydroxide, potassium hydroxide belong to corrosivity danger
Product, ordinary enterprises are difficult to obtain, and operability is poor；It can not be utilized again after chemicals use used in second, although water can be made
Divide inside cutting fluid waste liquid and separate, but added chemical article will all become dangerous waste after, increase again
The quantity and cost of processing dangerous waste.
Therefore, how to provide the water-base cutting fluid waste liquid oil-water separation method that a kind of processing cost is low, environmentally friendly is this field
The problem of technical staff's urgent need to resolve.
Summary of the invention
In view of this, processing cutting liquid waste liquid is at low cost the present invention provides the method for cutting fluid waste liquid water-oil separating, peace
Loopful is protected.
To achieve the goals above, the present invention adopts the following technical scheme that：
The method of cutting fluid waste liquid water-oil separating, includes the following steps：
To liquid storage container after step (1) collection cutting fluid waste liquid filtering scrap；
Cutting fluid waste liquid in step (1) is evacuated in centrifuge by step (2) by liquid storage container；
Sea salt will be added in the centrifuge in step (2) in step (3), opens centrifuge rotation；
Step (4) stops the centrifuge in step (3), stands to water-oil separating, acquisition upper solution is waste oil liquid, lower layer
Solution is salt water；
Step (5) releases lower layer's salt water to water tank, after moisture evaporation, recycling from the centrifugation motor spindle in step (4)
Sea salt；
Step (6) extracts the waste oil liquid of step (4) at the middle and upper levels using gear pump, carries out post-processing.
Wherein, filtering scrap is filtered using filter in step (1), and the scrap generated after filtering pours into solid waste storage
Bucket, centralized recovery.
Salt water can evaporation water, recycle sea salt；Waste oil liquid can refine again or power generation by waste combustion；In of the invention from demulsification to
Discharge is environmental protection and recyclable resource, high financial profit.
It can be seen via above technical scheme that compared with prior art, the present disclosure provides cutting fluid waste liquid greases
Isolated method, first sea salt are cheap, and existing market price is 200 yuan per ton, and is easy to get from the Nature, number
Measure it is huge, reduce demulsification cost investment；Secondly sea salt not only can be demulsified but also can sterilize, without using other chemical components
Sterilization processing is carried out, sterilization cost is reduced；Sea salt can reuse again, not will cause and pollute again, not only save
Be demulsified cost, while saving the expense as caused by pollution processing again；4th sea salt is not dangerous material, ordinary enterprises
With purchase, enterprise's door sill height of liquid waste processing is reduced；Water energy that treated enough reaches GB8978-2002 three-level discharge mark
It is quasi-.
Preferably, the weight ratio that sea salt and cutting fluid waste liquid are added in step (3) is 0.9-1.1:19-21 is preferably added to
The weight ratio of sea salt and cutting fluid waste liquid is 1:20；Sedimentation agent can be added simultaneously, be conducive to accelerate grease layering.Using this side
The effect of case：Both the demulsification of cutting fluid waste liquid had been improved, while there is good bactericidal effect, and has reduced sea salt and adds
Dosage.
Preferably, the revolving speed of centrifuge is 4800r/min-5000r/min in step (3)；Use the effect of this scheme for：
The thawing speed for increasing sea salt, salinity is effectively uniformly mixed, improve the demulsification of waste liquid with waste liquid.
Preferably, the volume of centrifuge is 1000L-1200L in step (3)；Using the effect of this scheme：Be conducive to improve
The treating capacity of industrial treatment cutting fluid waste liquid.
Preferably, time of repose is 30-35min in step (4).Using the effect of this scheme：Be conducive to salt water and waste oil
Complete layering.
Preferably, moisture evaporation is carried out using sea water evaporator in step (5).Using the effect of this scheme：Be conducive to add
Fast moisture evaporation, the quick sea salt that recycles recycle, and reduce multiple throwing demulsification cost.
Preferably, liquid storage container is non-ferrous container in step (1)；IBCTANK collecting barrelling (ton bucket) can be used, ton bucket
Has many advantages, such as light, high-strength, corrosion resistant.
Preferably, step (4) middle gear pump is noncorrosive pump.The explosion-proof fluoroplastics noncorrosive pump of FSB, FZB fluorine can be used
Plastic self-sucking pump, KCB gear pump and the corrosion-resistant liquid pump of FYS type.
The present invention also provides the methods of cutting fluid waste liquid water-oil separating, include the following steps：
To liquid storage container after step (1) collection cutting fluid waste liquid filtering scrap；
Sea salt will be added in the cutting fluid waste liquid in the step (1) in step (2)；
The cutting fluid waste liquid that sea salt is added in the step (2) is stirred by step (3)；
Step (4) precipitates the solution left standstill of cutting fluid waste liquid and sea salt mix after stirring in the step (3)；It obtains
Obtaining upper solution is waste oil liquid, and lower layer's solution is salt water；
Step (5) is returned to water tank after moisture evaporation from releasing in the step (4) lower layer's salt water in liquid storage container
Receive sea salt；
Step (6) extracts the waste oil liquid of the step (4) at the middle and upper levels using gear pump, carries out post-processing.
It can be seen via above technical scheme that compared with prior art, the present disclosure provides cutting fluid waste liquid greases
Isolated method, it is intact to use centrifuge using the method, only with mixing plant；Equally reached economic, environmental protection,
Safety, low pollution, the purpose of reusing of energy source.
Preferably, mixing time is 3-5min in step (3)；Using the effect of this scheme, salinity and cutting fluid are increased
Being uniformly mixed for waste liquid, improves demulsification.
It wherein staticly settles 2-3 days, the project low for time requirement can further reduce the cost.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawing is the process flow diagram of the method for cutting fluid waste liquid water-oil separating provided by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The method of cutting fluid waste liquid water-oil separating of the embodiment of the present invention, processing cutting liquid waste liquid is at low cost, safety and environmental protection.
Embodiment 1
Certain small-sized machine processing factory, the annual cutting fluid waste liquid that generates is about 200L-2000L；Using cutting fluid waste of the present invention
The method of liquid water-oil separating, includes the following steps：
To liquid storage container, scrap to solid waste storage barrel after step (1) collection cutting fluid waste liquid filtering scrap；
Cutting fluid waste liquid in step (1) is evacuated in compact centrifuge by step (2) by liquid storage container；
Sea salt will be added in the compact centrifuge in step (2) in step (3), opens centrifuge rotation；Sea salt is wherein added
Weight ratio with cutting fluid waste liquid is 1:20, centrifuge speed 5000r/min；
Step (4) stops the centrifuge in step (3), stands 30min, and acquisition upper solution is waste oil liquid, lower layer's solution
For salt water；
Step (5) releases lower layer's salt water to water tank, after moisture evaporation, recycling from the centrifugation motor spindle in step (4)
Sea salt；
Step (6) extracts the waste oil liquid of step (4) at the middle and upper levels using KCB200 gear pump, carries out post-processing.
The equipment used in the present embodiment includes：4 1000 liters of ton buckets, 200 liters big mouth plastic barrel 1, filter,
KCB200 4KW gear pump a whole set of 3 and sewage treatment centrifugal machine；
Equipment cost is calculated according to existing market price：
4 1000 liters of ton bucket X800 members=3200 yuan, 200 liters big mouth plastic barrel 1 X200=200 member, coarse filter
2000 yuan, KCB200 4KW gear pump a whole set of 13 member=4500 yuan x1500, sewage treatment centrifugal machine X12000 member；
Total equipment cost：22100 yuan
Above equipment handles 1000 liters of waste liquid consumables costs：
Consumptive material includes：50 kilograms of sea salt and 0.3 kilogram of sedimentation agent
0.3 kilogram of 50 kilograms of member=20 yuan X0.4 of sea salt, sedimentation agent member=3.6 yuan X12
It is total：23.6 yuan
This set equipment handles 1000 liters of waste liquids, and 0.1 ton of waste oil liquid of generation has to transfer Environmental Protection Agency's processing：Price is
0.1 ton of member=300 yuan/ton X3000.
Embodiment 2
Certain medium-sized mechanical processing factory, the annual cutting fluid waste liquid that generates is about 2000L-20000L, using cutting fluid of the present invention
The method of waste liquid water-oil separating includes the following steps：
To liquid storage container, scrap to solid waste storage barrel after step (1) collection cutting fluid waste liquid filtering scrap；
Cutting fluid waste liquid in step (1) is evacuated in centrifuge by step (2) by liquid storage container；
Sea salt will be added in the centrifuge in step (2) in step (3), opens centrifuge rotation；Wherein sea salt is added and cuts
The weight ratio for cutting liquid waste liquid is 0.9:19, centrifuge speed 4800r/min；
Step (4) stops the centrifuge in step (3), stands 35min, and acquisition upper solution is waste oil liquid, lower layer's solution
For salt water；
Step (5) releases lower layer's salt water to water tank, after moisture evaporation, recycling from the centrifugation motor spindle in step (4)
Sea salt；
Step (6) extracts the waste oil liquid of step (4) at the middle and upper levels using KCB200 gear pump, carries out post-processing.
The equipment used in the present embodiment includes：It is 10000 liters plastic barrel 3,1000 liters plastic barrel 1,200 liters big
Mouth plastic barrel, 1, hand electric blender, gear pump 3, filter 1 (stainless steel filtering net), small-scale sewage processing centrifugation
Machine.
Use consumptive material：Sea salt, sedimentation agent.
Equipment cost is calculated according to existing market price：It is 3 10000 liters of ton bucket X5000 members=15000 yuan, 200 liters big
A whole set of 3 member=4500 yuan x1500 of 1 X200=200 member of mouth plastic barrel, 2000 yuan of coarse filter, KCB200 4KW gear pump,
1 X12000 member of sewage treatment centrifugal machine.
Total equipment cost：33900 yuan
This set equipment handles 1000 liters of waste liquid consumables costs：
0.3 kilogram of 50 kilograms of member=20 yuan X0.4 of sea salt, sedimentation agent member=3.6 yuan X12
It is total：23.6 yuan
This set equipment handles 1000 liters of waste liquids, and 0.1 ton of waste oil, the liquid of generation have to transfer Environmental Protection Agency's processing：Price is
0.1 ton of member=300 yuan/ton X3000.
And the cost that sea salt can recycle during reprocessing does not count.
1000 liters of cutting fluid waste liquids, which are handled, according to above procedure only needs 1 hour.
Embodiment 3
Certain medium-sized mechanical processing factory, the annual cutting fluid waste liquid that generates is about 2000L-20000L, using cutting fluid of the present invention
The method of waste liquid water-oil separating is handled each time to be included the following steps：
To liquid storage container, scrap to solid waste storage barrel after step (1) collection cutting fluid waste liquid filtering scrap；
Sea salt will be added in the cutting fluid waste liquid in the step (1) in step (2)；Sea salt and cutting fluid waste liquid is wherein added
Weight ratio be 1:20；
The cutting fluid waste liquid that sea salt is added in the step (2) is stirred by step (3), stirs 3-5min；
The solution left standstill of cutting fluid waste liquid and sea salt mix after stirring in the step (3) is precipitated 2-3 by step (4)
It；Acquisition upper solution is waste oil liquid, and lower layer's solution is salt water；
Step (5) is returned to water tank after moisture evaporation from releasing in the step (4) lower layer's salt water in liquid storage container
Receive sea salt；
Step (6) extracts the waste oil liquid of the step (4) at the middle and upper levels using gear pump, carries out post-processing.
The equipment used in the present embodiment includes：It is 10000 liters plastic barrel 3,1000 liters plastic barrel 1,200 liters big
Mouth plastic barrel, 1, hand electric blender, gear pump 3, filter 1 (stainless steel filtering net), electric blender.
Use consumptive material：Sea salt, sedimentation agent.
Equipment cost is calculated according to existing market price：It is 3 10000 liters of ton bucket X5000 members=15000 yuan, 200 liters big
A whole set of 3 member=4500 yuan x1500 of 1 X200=200 member of mouth plastic barrel, 2000 yuan of coarse filter, KCB200 4KW gear pump,
1 X200 member of electric blender.
Total equipment cost：21900 yuan
This set equipment handles 1000 liters of waste liquid consumables costs：
0.3 kilogram of 50 kilograms of member=20 yuan X0.4 of sea salt, sedimentation agent member=3.6 yuan X12
It is total：23.6 yuan
This set equipment handles 1000 liters of waste liquids, and 0.1 ton of waste oil, the liquid of generation have to transfer Environmental Protection Agency's processing：Price is
0.1 ton of member=300 yuan/ton X3000.
And the cost that sea salt can recycle during reprocessing does not count.
The time that 1000 liters of cutting fluid waste liquids are handled in above procedure is 3 days.
The embodiment of the present invention and traditional 1 ton of cutting fluid waste liquid cost table of comparisons of distillation under vacuum technical treatment：
Wherein, distillation under vacuum equipment cost and processing cost data per ton are from quotation of the same trade at present, such as peace beauty
The firm quotes such as company, Frank, Kui Ke.It is not counted in above-mentioned cost after sea salt recycling on the basis of the cost saved, it can be with
Advantage of the embodiment of the present invention in cost significantly is contrasted, and treatment process is safe and environment-friendly, is preferably cut in industry
Cut liquid waste liquid oil-water separation method.
It can be seen that technical solution of the present invention has apparent economic advantages；The present invention is a kind of environmentally friendly, pollution-free, warp
Good, the good technical method of oil-water separation of Ji property.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. the method for cutting fluid waste liquid water-oil separating, which is characterized in that include the following steps：
To liquid storage container after step (1) collection cutting fluid waste liquid filtering scrap；
Cutting fluid waste liquid in the step (1) is evacuated in centrifuge by step (2) by liquid storage container；
Sea salt will be added in the centrifuge in the step (2) in step (3), opens centrifuge rotation；
Step (4) stops the centrifuge in the step (3), stands to water-oil separating, acquisition upper solution is waste oil liquid, lower layer
Solution is salt water；
Step (5) releases lower layer's salt water to water tank, after moisture evaporation, recycling from the centrifugation motor spindle in the step (4)
Sea salt；
Step (6) extracts the waste oil liquid of the step (4) at the middle and upper levels using gear pump, carries out post-processing.
2. the method for cutting fluid waste liquid water-oil separating, which is characterized in that include the following steps：
To liquid storage container after step (1) collection cutting fluid waste liquid filtering scrap；
Sea salt will be added in the cutting fluid waste liquid in the step (1) in step (2)；
The cutting fluid waste liquid that sea salt is added in the step (2) is stirred by step (3)；
Step (4) precipitates the solution left standstill of cutting fluid waste liquid and sea salt mix after stirring in the step (3)；In acquisition
Layer solution is waste oil liquid, and lower layer's solution is salt water；
Step (5) is from lower layer's salt water is released in the step (4) to water tank, after moisture evaporation, recycling sea in liquid storage container
Salt；
Step (6) extracts the waste oil liquid of the step (4) at the middle and upper levels using gear pump, carries out post-processing.
3. the method for cutting fluid waste liquid water-oil separating according to claim 1 or 2, which is characterized in that be added sea salt amount with
The weight ratio of cutting fluid waste liquid is 0.9-1.1:19-21.
4. the method for cutting fluid waste liquid water-oil separating according to claim 1, which is characterized in that in the step (3) from
The revolving speed of scheming is 4800r/min-5000r/min.
5. the method for cutting fluid waste liquid water-oil separating according to claim 4, which is characterized in that in the step (3) from
The volume of scheming is 1000L-1200L.
6. the method for cutting fluid waste liquid water-oil separating according to claim 4, which is characterized in that quiet in the step (4)
Setting the time is 30-35min.
7. the method for cutting fluid waste liquid water-oil separating according to claim 4, which is characterized in that adopted in the step (5)
Moisture evaporation is carried out with sea water evaporator.
8. the method for cutting fluid waste liquid water-oil separating according to claim 1-7, which is characterized in that the step
(1) liquid storage container is non-ferrous container in.
9. the method for cutting fluid waste liquid water-oil separating according to claim 1-7, which is characterized in that the step
(6) middle gear pump is noncorrosive pump.
10. the method for cutting fluid waste liquid water-oil separating according to claim 2, which is characterized in that stirred in the step (3)
Mixing the time is 3-5min.
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| CN201810622727.1A CN108911321A (en) | 2018-06-15 | 2018-06-15 | The method of cutting fluid waste liquid water-oil separating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110182896A (en) * | 2019-06-06 | 2019-08-30 | 上海山悦环保科技发展有限公司 | A kind of enameled wire wire drawing waste emulsified mixture water-oil separating integration apparatus |
| CN110590008A (en) * | 2019-08-28 | 2019-12-20 | 四川蓝魔方环境科技有限公司 | Waste cutting fluid treatment process |
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Cited By (2)
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| CN110182896A (en) * | 2019-06-06 | 2019-08-30 | 上海山悦环保科技发展有限公司 | A kind of enameled wire wire drawing waste emulsified mixture water-oil separating integration apparatus |
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Application publication date: 20181130 |