CN107176707A - Machine cutting fluid waste liquid treatment for reuse technique and system - Google Patents
Machine cutting fluid waste liquid treatment for reuse technique and system Download PDFInfo
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- CN107176707A CN107176707A CN201710492156.XA CN201710492156A CN107176707A CN 107176707 A CN107176707 A CN 107176707A CN 201710492156 A CN201710492156 A CN 201710492156A CN 107176707 A CN107176707 A CN 107176707A
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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
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
- C02F1/046—Treatment of water, waste water, or sewage by heating by distillation or evaporation under vacuum produced by a barometric column
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- 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
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides a kind of machining cutting fluid waste liquid treatment for reuse system and technique, system includes rough filtering device, rough filtering device connects oil slick separation equipment, oil slick separation equipment connects airfloat equipment, airfloat equipment connection dosing demulsification groove, dosing demulsification groove connection adjusting apparatus, adjusting apparatus connection filtering equipment, filtering equipment connection cleaning equipment.Cutting fluid is handled using the system; its framework is simple; processing is thorough; to making its water-oil separating and filter plant in the cutting fluid of usage cycles; then reuse; ensure in machining process the function of cutting fluid and extend its service life; advanced treating is done to the cutting fluid beyond usage cycles; base oil will be emulsified after being demulsified to cutting fluid to be completely separated out and without adding expensive detecting instrument, controller unit etc.; water quality treatment directly can newly match somebody with somebody cutting fluid without detection as pure water, reduce a large amount of expenses of the outer processing of used cutting liquid committee.
Description
Technical field
The present invention relates to machining cutting fluid treatment technology, and in particular to machining cutting fluid waste liquid treatment for reuse technique and
System.
Background technology
Cut oil droplet trickle in emulsion in machining to be highly dispersed to be distributed in water, also containing various in emulsion
The additive such as surfactant and antirust agent.General cutting fluid is smelly using that will go bad within 3 ~ 4 months, can produce following point：
Cut emulsion and pass through in addition to containing solid impurities such as abrasive particle, chips, workpiece is brought into after working position oil, machine guide track
Oil etc. dissolves in wherein, it is easy to cause the blocking of circulating line；
The easy cooperating microorganisms of emulsion are cut, microorganism includes bacterium, mould, fungi etc., these are all influence emulsion product
Matter, causes emulsion putrid and deteriorated smelly, and the presence of oil slick further causes cutting emulsion failure；
The processing of cutting fluid mostly machines the metal debris produced for simple circulating filtration in the market, will not be small
Particle filtering is removed, and does not also accomplish the separation of oil and emulsion, it is impossible to ensure the function of cutting fluid in processing：Improve Tool in Cutting
Ability and service life, improve Product Precision, rate of reducing the number of rejects and seconds；
In recent years new processing mode：Multiple times of filtration（Including centrifuging）+ TMF microfiltration membranes+RO film process etc., this scheme was than former
Handling process has qualitative leap, but have that pre-processing requirements are strict simultaneously, film is easy to pollute, need sterilizing deodorization,
Need automatic monitor and detection instrument and 20 ~ 40% or so concentrated water still need to entrust outer processing the problems such as；Most important of which is that newborn
Change the emulsification base oil inside liquid to fail to separate in pretreatment, this is fatal infringement to film process below.
The content of the invention
There is provided machining cutting fluid waste liquid treatment for reuse system for the technique for the comprehensive processing of cutting fluid by the present invention
And technique, simply, processing is thorough, to being handled respectively in usage cycles and beyond the cutting fluid of usage cycles, to making for its framework
Make its water-oil separating and filtering with the cutting fluid in cycle, then reuse, it is ensured that the function of cutting fluid and extension in machining process
Its service life, to the cutting fluid beyond usage cycles does advanced treating, will emulsification basis after being demulsified to cutting fluid
Oil is completely separated out and without adding expensive detecting instrument, controller unit etc., and water quality treatment can directly be worked as without detection
Make pure water newly to match somebody with somebody cutting fluid.
In order to solve the above technical problems, one aspect of the present invention is：
Cutting fluid waste liquid treatment for reuse technique is machined, treatment for reuse is carried out to cutting fluid using above-mentioned system, including,
1）Machining cutting fluid squeezes into rough filtering device, and the particle filtering that mesh number is more than 150 μm is separated；
2）To step 1）Oil slick after processing in cutting fluid is separated；
If cutting fluid be machining process in the pot life in usage cycles, perform step 3）To 4）；
If cutting fluid exceedes usage cycles for the pot life in machining process, step 5 is performed）To 8）；
3）By step（2）In the cutting fluid isolated flow into airfloat equipment, the small oil particles and profit being dissolved in cutting fluid point
The a small amount of oil slick come from device is further separated in flotation tank, and 15 μm of particle and a small amount of oil slick are separated in cutting fluid
Come；
4）Cutting fluid in flotation tank bottom is used for daily board reuse, and flotation tank oil slick flows into salvage sump；
5）By step（2）In the cutting fluid isolated flow into flotation tank, all cutting fluids after air-flotation process be pumped into chemistry plus
Medicine demulsification groove, adds 10 ~ 60ml/L of oxidant, adjusts PH2 ~ 5,30 ~ 60Min of reaction time makes the W/O of emulsifying agent in cutting fluid
Base chain rupture, the base oil of emulsification is separated；
6）Processing, addition piece alkali and PAM are adjusted after the completion of chemical demulsification, PH8 ~ 11 are kept, 2 ~ 8Min is stirred；
This flocculation can make mushroom, heavy metal, SS and the sedimentation of other salts in cutting fluid, make water body cleaner；
7）Step（6）After the completion of directly use filter press press filtration, cleaner liquid flows into intermediate storage bucket, and cleaner liquid COD is by former waste liquid
25000ppm is down to 3200ppm, and filtrate is clarified after demulsification press filtration, is completely removed oil slick and oil emulsion；
8）Cleaner liquid in intermediate storage bucket is squeezed into ultrafiltration/RO systems, water outlet PH6.8 ~ 7.5, COD<30ppm, TDS：<30µ
s/cm；Water outlet can be used as new cutting fluid configuration water, and the new cutting fluid of configuration is back to use machining board, or
Cleaner liquid in intermediate storage bucket is squeezed into negative pressure evaporation system, negative pressure evaporation system effluent quality：PH6.8 ~ 7.5,
COD<100ppm, TDS：<400µs/cm；It is used as new cutting fluid configuration water, the new cutting fluid of configuration is back to use machining board.
System for machining cutting fluid waste liquid treatment for reuse technique, including rough filtering device, rough filtering device connection oil slick
Separation equipment, oil slick separation equipment connection airfloat equipment, airfloat equipment connection dosing demulsification groove, dosing demulsification groove connection adjustment dress
Put, adjusting apparatus connection filtering equipment, filtering equipment connection cleaning equipment, cleaning equipment is ultrafiltration/RO systems or negative pressure evaporation
System.
The beneficial effects of the invention are as follows：Framework is simple, and processing is thorough, in usage cycles and the cutting beyond usage cycles
Liquid is handled respectively, to making its water-oil separating and filtering in the cutting fluid of usage cycles, then reuse, it is ensured that cut in machining process
Cut the function of liquid and extend its service life, advanced treating is done to the cutting fluid beyond usage cycles, cutting fluid is carried out
Base oil will be emulsified after demulsification to be completely separated out and detecting instrument, the controller unit expensive without addition etc., water quality treatment without
Need to detect directly can newly match somebody with somebody cutting fluid as pure water, reduce a large amount of expenses of the outer processing of used cutting liquid committee.
Brief description of the drawings
Fig. 1 is the system block diagram of the present invention.
Embodiment
With reference to embodiment, the embodiment to the present invention is further described.
As shown in figure 1, machining cutting fluid waste liquid treatment for reuse system, including rough filtering device is scrap lautertuns, coarse filtration
Device connection oil slick separation equipment is oil-water separation tank, and oil slick separation equipment connection airfloat equipment is air-flotation process groove, and air supporting is set
Standby connection dosing demulsification groove, dosing demulsification groove connection adjusting apparatus, adjusting apparatus connection filtering equipment, filtering equipment connection purification
Equipment, cleaning equipment is ultrafiltration/RO systems or negative pressure evaporation system.
In an embodiment of the present invention, airfloat equipment is air flotation slot, and filtering equipment is filter press.
Machine cutting fluid waste liquid treatment for reuse technique, mainly in machining process using i.e. not less than using
Cycle and two class cutting fluid waste liquids more than usage cycles are handled,
For the cutting fluid used, its technique includes,
1）Machining cutting fluid squeezes into rough filtering device, and the particle filtering that mesh number is more than 150 μm is separated；
2）To step 1）Oil slick after processing in cutting fluid is separated；
3）By step（2）In the cutting fluid isolated flow into airfloat equipment, the small oil particles and profit being dissolved in cutting fluid point
The a small amount of oil slick come from device is further separated in flotation tank, and 15 μm of particle and a small amount of oil slick are separated in cutting fluid
Come, cutting fluid flows into salvage sump,
4）Cutting fluid in flotation tank bottom is used for daily board reuse, and flotation tank oil slick flows into salvage sump.
For the cutting fluid more than usage cycles, its technique includes,
1）Machining cutting fluid squeezes into rough filtering device, and the particle filtering that mesh number is more than 150 μm is separated；
2）To step 1）Oil slick after processing in cutting fluid is separated in oil slick separation equipment；
3）By step（2）In the cutting fluid isolated flow into flotation tank, all cutting fluids after air-flotation process be pumped into chemistry plus
Medicine demulsification groove is pumped into chemical dosing demulsification groove, adds 10 ~ 60ml/L of oxidant, adjusts PH2 ~ 5,30 ~ 60Min of reaction time；Make
The W/O base chain ruptures of emulsifying agent in cutting fluid, the base oil of emulsification is separated；
4）Processing is adjusted after the completion of chemical demulsification, PH8 ~ 11 are kept, 2 ~ 8Min is stirred；This flocculation can make the bacterium in cutting fluid
Class, heavy metal, SS and the sedimentation of other salts, make water body cleaner；
5）Filter press press filtration is directly used after the completion of adjustment processing, cleaner liquid flows into intermediate storage bucket, and cleaner liquid COD is by former waste liquid
25000ppm is down to 3200ppm, and filtrate is clarified after demulsification press filtration, is completely removed oil slick and oil emulsion；
6）Cleaner liquid in intermediate storage bucket is squeezed into ultrafiltration/RO systems, water outlet PH6.8 ~ 7.5, COD<30ppm, TDS：<30µ
s/cm；Water outlet can be used as new cutting fluid configuration water, and the new cutting fluid of configuration is back to use machining board, or
Cleaner liquid in intermediate storage bucket is squeezed into negative pressure evaporation system, negative pressure evaporation system effluent quality：Negative pressure evaporation system
Effluent quality：PH6.8 ~ 7.5, COD<100ppm, TDS：<400µs/cm；It is used as new cutting fluid configuration water, the fresh cut of configuration
Cut liquid and be back to use machining board.
In such scheme, rough filtering device has three road lautertuns, and filter basket is placed in inside respectively.
For those skilled in the art, the technical scheme described in foregoing embodiments can still be repaiied
Change, or equivalent substitution is carried out to which part technical characteristic, within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (6)
1. machine cutting fluid waste liquid treatment for reuse technique, it is characterised in that using the system described in claim 1 to cutting fluid
Treatment for reuse is carried out, including,
1）Machining cutting fluid squeezes into coarse filtration groove, filters out the bulky grain in cutting fluid；
2）To step 1）Oil slick after processing in cutting fluid is separated；
If cutting fluid be machining process in the pot life in usage cycles, perform step 3）To 4）；
If cutting fluid exceedes usage cycles for the pot life in machining process, step 5 is performed）To 8）；
3）By step（2）In the cutting fluid isolated flow into flotation tank, be dissolved in small oil particles and water-oil separating in cutting fluid
A small amount of oil slick that device comes further is separated in flotation tank, and small oil particles and a small amount of oil slick are separated in cutting fluid；
4）Cutting fluid in flotation tank bottom is used for daily board reuse, and flotation tank oil slick flows into salvage sump；
5）By step（2）In the cutting fluid isolated flow into flotation tank, all cutting fluids after air-flotation process be pumped into chemistry plus
Medicine demulsification groove, adds oxidant, makes the W/O base chain ruptures of emulsifying agent in cutting fluid, the base oil of emulsification is separated；
6）Be adjusted processing after the completion of chemical demulsification, keep PH8-11, flocculation, make mushroom in cutting fluid, heavy metal, SS and
Other salt sedimentations；
7）Step（6）After the completion of directly use filter press press filtration, cleaner liquid flows into intermediate storage bucket, and cleaner liquid COD is by former waste liquid
25000ppm is down to 3200ppm, and filtrate is clarified after demulsification press filtration, is completely removed oil slick and oil emulsion；
8）Cleaner liquid in intermediate storage bucket is squeezed into ultrafiltration/RO systems, water outlet PH6.8 ~ 7.5, COD<30ppm, TDS：<30µ
s/cm；Water outlet can be used as new cutting fluid configuration water, and the new cutting fluid of configuration is back to use machining board, or
Cleaner liquid in intermediate storage bucket is squeezed into negative pressure evaporation system, negative pressure evaporation system effluent quality：Negative pressure evaporation system
Effluent quality：PH6.8 ~ 7.5, COD<100ppm, TDS：<400µs/cm；It is used as new cutting fluid configuration water, the fresh cut of configuration
Cut liquid and be back to use machining board.
2. cutting fluid waste liquid treatment for reuse technique is machined as claimed in claim 1, it is characterised in that step 1）In be more than
150 μm of particle is isolated by filtration.
3. machining cutting fluid waste liquid treatment for reuse technique as claimed in claim 1, it is characterised in that oxidant addition is
10 ~ 60ml/L, adjusts PH2 ~ 5,30 ~ 60Min of reaction time, the W/O base chain ruptures of emulsifying agent, and then divided the base oil of emulsification
Separate out and.
4. cutting fluid waste liquid treatment for reuse technique is machined as claimed in claim 1, it is characterised in that small oil particles are 15 μm
Small oil particles.
5. cutting fluid waste liquid treatment for reuse technique is machined as claimed in claim 1, it is characterised in that in adjustment processing, added
Plus piece alkali and PAM, PH8 ~ 11 are kept, 2 ~ 8Min is stirred.
6. the system for machining cutting fluid waste liquid treatment for reuse technique any one of claim 1 to 5, its feature exists
In, including rough filtering device, rough filtering device connection oil slick separation equipment, oil slick separation equipment connection airfloat equipment, airfloat equipment company
Dosing demulsification groove is connect, dosing demulsification groove connection adjusting apparatus, adjusting apparatus connection filtering equipment, filtering equipment connection purification is set
Standby, cleaning equipment is ultrafiltration/RO systems or negative pressure evaporation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710492156.XA CN107176707A (en) | 2017-06-26 | 2017-06-26 | Machine cutting fluid waste liquid treatment for reuse technique and system |
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|---|---|---|---|
| CN201710492156.XA CN107176707A (en) | 2017-06-26 | 2017-06-26 | Machine cutting fluid waste liquid treatment for reuse technique and system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019985A (en) * | 2018-09-17 | 2018-12-18 | 上海禾元环保集团有限公司 | A kind of processing method of oil-containing heavy metal wastewater thereby industry |
| CN110028201A (en) * | 2019-05-08 | 2019-07-19 | 杭州齐创环境工程有限公司 | A kind of waste emulsified mixture resource utilization processing system and technique |
| CN110510808A (en) * | 2019-08-19 | 2019-11-29 | 东莞市逸轩环保科技有限公司 | Metal cutting waste liquid environment protection emission processing system |
| 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 |
| CN113788562A (en) * | 2021-09-23 | 2021-12-14 | 安徽恒均粉末冶金科技股份有限公司 | Machine tool grinding fluid negative pressure filtering circulating treatment system and process thereof |
| WO2022082955A1 (en) * | 2020-10-21 | 2022-04-28 | 南京江岛环境科技研究院有限公司 | System and method for utilizing air flotation pretreatment + biochemical + double-membrane processes for treating and reusing machining wastewater |
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| CN102642961A (en) * | 2012-05-11 | 2012-08-22 | 同济大学 | Reuse treatment method for industrial wastewater from refrigerator compressor factory |
| CN105084622A (en) * | 2015-08-20 | 2015-11-25 | 深圳市天得一环境科技有限公司 | Water-soluble cutting fluid cyclic recovery plant and recovery technique |
| CN205635274U (en) * | 2016-05-17 | 2016-10-12 | 无锡易水元资源循环科技有限公司 | Processing system is synthesized to useless emulsion of high concentration |
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2017
- 2017-06-26 CN CN201710492156.XA patent/CN107176707A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102642961A (en) * | 2012-05-11 | 2012-08-22 | 同济大学 | Reuse treatment method for industrial wastewater from refrigerator compressor factory |
| CN105084622A (en) * | 2015-08-20 | 2015-11-25 | 深圳市天得一环境科技有限公司 | Water-soluble cutting fluid cyclic recovery plant and recovery technique |
| CN205635274U (en) * | 2016-05-17 | 2016-10-12 | 无锡易水元资源循环科技有限公司 | Processing system is synthesized to useless emulsion of high concentration |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109019985A (en) * | 2018-09-17 | 2018-12-18 | 上海禾元环保集团有限公司 | A kind of processing method of oil-containing heavy metal wastewater thereby industry |
| CN110028201A (en) * | 2019-05-08 | 2019-07-19 | 杭州齐创环境工程有限公司 | A kind of waste emulsified mixture resource utilization processing system and technique |
| CN110510808A (en) * | 2019-08-19 | 2019-11-29 | 东莞市逸轩环保科技有限公司 | Metal cutting waste liquid environment protection emission processing system |
| 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 |
| WO2022082955A1 (en) * | 2020-10-21 | 2022-04-28 | 南京江岛环境科技研究院有限公司 | System and method for utilizing air flotation pretreatment + biochemical + double-membrane processes for treating and reusing machining wastewater |
| CN113788562A (en) * | 2021-09-23 | 2021-12-14 | 安徽恒均粉末冶金科技股份有限公司 | Machine tool grinding fluid negative pressure filtering circulating treatment system and process thereof |
| CN113788562B (en) * | 2021-09-23 | 2023-03-10 | 安徽恒均粉末冶金科技股份有限公司 | Machine tool grinding fluid negative pressure filtering circulating treatment system and process thereof |
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Application publication date: 20170919 |
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