CN111254004A - Water-soluble metal working fluid deterioration recovery method - Google Patents
Water-soluble metal working fluid deterioration recovery method Download PDFInfo
- Publication number
- CN111254004A CN111254004A CN202010090415.8A CN202010090415A CN111254004A CN 111254004 A CN111254004 A CN 111254004A CN 202010090415 A CN202010090415 A CN 202010090415A CN 111254004 A CN111254004 A CN 111254004A
- Authority
- CN
- China
- Prior art keywords
- working fluid
- value
- metal working
- water
- bactericide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0058—Working-up used lubricants to recover useful products ; Cleaning by filtration and centrifugation processes; apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0016—Working-up used lubricants to recover useful products ; Cleaning with the use of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a method for restoring the deterioration of water-soluble metal working fluid, which comprises the following steps: the first step is as follows: filtering the deteriorated water-soluble metal processing liquid by using filter cotton; the second step is that: adding a metal working fluid pH value lifting agent to adjust the pH value of the metal working fluid to 8.5-9.0; the third step: adding the s-triazine broad-spectrum bactericide, and detecting the pH value of the solution after the solution is circulated in the system for a plurality of hours at normal temperature; the fourth step: filtering by using the filter cotton again, adding the metal working fluid pH value lifting agent again to adjust the pH value of the metal working fluid to 9.0-9.5, and adding the s-triazine broad-spectrum bactericide; the fifth step: adding an alkali value storage agent to keep the environment difficult for bacteria to live; and establishing a physical and chemical detection standard card for point inspection and tracking, and inspecting the odor, the concentration and the pH value every working day for tracking management. The method can reduce the generation amount of hazardous waste of the metal working fluid HW09 by more than 90 percent, and has the advantages of controllable cost, good economy, easy learning and convenient popularization.
Description
Technical Field
The invention relates to the technical field of metal working fluids, in particular to a method for restoring the deterioration of a water-soluble metal working fluid.
Background
In the process of metal processing and manufacturing, metal parts and the processing process need to be lubricated, cooled, rustproof and cleaned to realize the high-efficiency processing of the processing process, and metal processing liquid mixed by mineral oil, water and surfactant is inevitably required to be used to realize the process effect. The mixture is used as a medium for industrial production, is an open solution system, inevitably mixes various bacteria existing in the natural environment, and can deteriorate the metal working fluid under the action of different flora.
After the metal processing liquid is deteriorated, the metal processing liquid can generate an unpleasant smelly egg smell, so that the environment of a production and processing workshop is severe. Meanwhile, a series of process problems such as corrosion of metal parts produced and machined, rusting of a machine tool and the like can be accelerated. The deteriorated metal working fluid belongs to HW09 waste and dangerous waste according to the definition of environmental regulations and the national records of dangerous waste.
Clear regulatory requirements are provided for the reduction of hazardous wastes in the methods for preventing and treating the solid waste pollution environment of the people's republic of China, the method for promoting the clean production of the people's republic of China and the method for promoting the circular economy of the people's republic of China.
Currently, there are two ways to treat odorous metal working fluids:
(1) the distillation method is used for fractionating substances in the waste liquid with different boiling points and boiling range differences, the substances are separated by means of adding entrainer under the conditions of pressure, temperature and stirring, and finally the harmful substances are sent to a hazardous waste station, and the separated water is recycled or discharged to the nature.
(2) The membrane filtration method utilizes the 'semi-permeable membrane effect' between different substances in a solution, namely, a mixture of a solvent and a solute mutually, can realize the chemical characteristics that the solute passes through but the solvent cannot pass through relative to a certain semi-permeable membrane material, and finally can realize the reduction of the oily wastewater to below 10 percent by applying some physical catalysis methods, and then the oily wastewater is handed to a dangerous waste station for professional treatment.
The above treatment methods all adopt separation methods, and as is well known, the separation of organic solvents is a very difficult scientific problem, and the defects of high cost, complex process and great management difficulty mainly exist.
Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a method for restoring the deterioration of a metal working fluid, which has low cost, simple process and good reduction effect.
Disclosure of Invention
In view of the above, the present invention provides a method for restoring the deterioration of a metal working fluid, which can solve the urgent problem of the reduction management of the waste metal working fluid HW09, and reduce the generation amount of hazardous waste HW09 by more than 90%.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for restoring the deterioration of water-soluble metal working fluid comprises the following steps:
the first step is as follows: filtering the deteriorated water-soluble metal processing liquid by using filter cotton, and cleaning agglomerated bacterial plaque and solid insoluble substances;
the second step is that: adding a metal working fluid pH value lifting agent, circularly stirring, and adjusting the pH value of the metal working fluid to 8.5-9.0;
the third step: adding the s-triazine broad-spectrum bactericide, and detecting the pH value of the solution after the solution is circulated in the system for a plurality of hours at normal temperature;
the fourth step: filtering by using the filter cotton again, adding the metal working fluid pH value improver again for circular stirring, adjusting the pH value of the metal working fluid to 9.0-9.5, and adding the s-triazine broad-spectrum bactericide;
the fifth step: adding an alkali value storage agent to keep the environment difficult for bacteria to live; and establishing a physical and chemical detection standard card for point inspection and tracking, and inspecting the odor, the concentration and the pH value every working day for tracking management.
Adopt above-mentioned technical scheme's beneficial effect: the reproduction speed of the flora in the metalworking fluid is controlled at a lower level, and the pH value is 8.5-9.0, so that the triazine broad-spectrum bactericide can keep the optimal activity, and the highest killing efficiency is realized. After effective sterilization, the pH value is further increased to 9.0-9.5 after the agglomerated bacterium blocks and the bacterium corpses are filtered out, and the environment which is difficult to live by fungi and anaerobic bacteria is maintained. The method realizes the recovery and the continuous use of the smelly metal processing liquid, reduces the generation of hazardous waste of HW09 and protects the environment.
Preferably, in the method for restoring the deterioration of the water-soluble metal working fluid, the triazine broad-spectrum bactericide is added in a third step in a mass fraction of 0.1% so that the active ingredient of the bactericide is 0.03-0.08%. The effective components of the bactericide are too low, the killing effect is not ideal, and the sulfate reducing bacteria are difficult to kill. The bactericide has too high effective components, is easy to generate drug resistance, and has an unsatisfactory killing effect in practice.
Preferably, in the method for restoring deterioration of a water-soluble metal working fluid, the s-triazine broad-spectrum bactericide is added in the fourth step in a mass fraction of 0.03 to 0.05% so that the concentration of the actual active ingredient of the bactericide working fluid is 0.01 to 0.03%.
Preferably, in the method for restoring the deterioration of the water-soluble metal working fluid, the filter cotton is the filter cotton, the material of the filter cotton can be one of non-woven fabrics and pearl cotton, and the filtering precision is 10 microns.
Preferably, in the above method for restoring a deterioration of a water-soluble metal working fluid, the pH raising agent for a metal working fluid is one or a mixture of monoethanolamine, diethanolamine, potassium hydroxide and sodium nitrite.
Preferably, in the above method for restoring deterioration of a water-soluble metal working fluid, the base number stock agent is: one or more of triethanolamine, diethanolamine, dicyclohexylamine, potassium hydroxide and sodium nitrite.
Compared with the prior art, the invention has the beneficial effects that: can kill harmful bacteria group affecting the metal working fluid performance, effectively control the solution system of the water-soluble metal working fluid, and maintain the function, thereby realizing the recovery of the metal working fluid. The step-by-step bacterial killing can not cause the emulsifier of the metal working fluid to be agglomerated, can not cause the granularity of effective components such as extreme pressure agent, antiwear agent and the like to be increased, can not be filtered and removed in the filtering process, maintains the processing performance and realizes the recovery of the smelly water-soluble metal working fluid.
The method for restoring the deterioration of the water-soluble metal processing liquid has simple operation, does not need to transfer and transport hazardous wastes, can be independently finished in a metal processing workshop, does not need to invest special equipment, and does not generate more HW09 hazardous wastes. The invention has controllable cost, good economy, easy learning and convenient popularization.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Water-soluble metal working fluid deterioration recovery method
The first step is as follows: filtering the deteriorated water-soluble metal processing liquid by using commercially available filter cotton with the filtering precision of 10 mu m, and cleaning agglomerated bacterial plaque and solid insoluble substances;
the second step is that: adding two mixtures of monoethanolamine and potassium hydroxide, circularly stirring for 15 minutes, adjusting the pH value of the metal working fluid to 8.5-9.0, and creating a comprehensive sterilizing solution system environment;
the third step: the s-triazine broad-spectrum bactericide is added according to the mass fraction of about 0.1 percent, the effective components of the bactericide are calculated to be 0.03 percent, the bactericide is circulated in the system for six hours under the normal temperature, and then the pH value of the solution is detected. The pH value is lower than 9.0, which indicates that the sterilization efficiency does not meet the design requirement, and the bactericide needs to be supplemented and circulated again;
the fourth step: filtering with commercial filter cotton with filtering precision of 10um, adding the pH value improver in the second step again, circularly stirring, adjusting the pH value of the metal working fluid to 9.0, adding the s-triazine broad-spectrum bactericide according to the mass fraction of 0.03%, and measuring the effective component of the bactericide to be 0.01%;
the fifth step: adding an alkali value storage agent (a mixture of triethanolamine, diethanolamine, dicyclohexylamine, potassium hydroxide and sodium nitrite), maintaining a bacteria non-living environment, establishing a physical and chemical detection standard card for point inspection and tracking, and performing tracking management by inspecting the odor, concentration and pH value every working day.
The standard is as follows: the smell is not smelly like a rotten egg, the concentration is read by a refractometer to be more than 5, and the pH value is maintained to be more than 9.0.
Example 2
Water-soluble metal working fluid deterioration recovery method
The first step is as follows: filtering the deteriorated water-soluble metal processing liquid by using commercially available filter cotton with the filtering precision of 10 mu m, cleaning agglomerated bacterial plaque and solid insoluble substances, and cleaning the bacterial plaque on the wall of a water-soluble metal processing liquid storage tank;
the second step is that: adding a mixture of diethanolamine and sodium hydroxide, circularly stirring for 20 minutes, adjusting the pH value of the metal working fluid to 8.5-9.0, and creating a comprehensive sterilizing solution system environment;
the third step: putting the s-triazine broad-spectrum bactericide according to the mass fraction of about 0.1%, measuring the active ingredients of the bactericide to be 0.08%, maintaining the normal temperature, circulating in the system for six hours, detecting the pH value of the solution, and controlling the pH value to be about 9.0 (the pH value is lower than 9.0, which indicates that the sterilizing efficiency does not meet the design requirement, and the bactericide needs to be added);
the fourth step: filtering with commercial filter cotton with filtering precision of 10um, adding the pH value improver in the second step, and circularly stirring to adjust the pH value of the metal working fluid to be more than 9.0 and less than or equal to 9.5. Putting the s-triazine broad-spectrum bactericide according to the mass fraction of about 0.05 percent, and measuring the effective component of the bactericide to be 0.03 percent as a reserved bactericidal component;
the fifth step: adding an alkali value storage agent (a mixture of triethanolamine, potassium hydroxide and sodium nitrite), maintaining a bacteria non-living environment, establishing a physical and chemical detection standard card for point inspection and tracking, and inspecting the odor, concentration and pH value every working day for tracking and managing.
The standard is as follows: the smell is not smelly like a rotten egg, the concentration is read by a refractometer to be more than 5, and the pH value is maintained to be more than 9.0.
Claims (6)
1. A method for restoring deterioration of a water-soluble metal working fluid, comprising the steps of:
the first step is as follows: filtering the deteriorated water-soluble metal processing liquid by using filter cotton, and cleaning agglomerated bacterial plaque and solid insoluble substances;
the second step is that: adding a metal working fluid pH value lifting agent, circularly stirring, and adjusting the pH value of the metal working fluid to 8.5-9.0;
the third step: adding the s-triazine broad-spectrum bactericide, and detecting the pH value of the solution after the solution is circulated in the system for a plurality of hours at normal temperature;
the fourth step: filtering by using the filter cotton again, adding the metal working fluid pH value improver again for circular stirring, adjusting the pH value of the metal working fluid to 9.0-9.5, and adding the s-triazine broad-spectrum bactericide; the fifth step: adding an alkali value storage agent to keep the environment difficult for bacteria to live; and establishing a physical and chemical detection standard card for point inspection and tracking, and inspecting the odor, the concentration and the pH value every working day for tracking management.
2. The method for recovering the deterioration of a water-soluble metal working fluid according to claim 1, wherein the broad spectrum bactericide of s-triazine is added in the third step in a mass fraction of 0.1% so that the active ingredient of the bactericide is 0.03% to 0.08%.
3. The method for recovering the deterioration of a water-soluble metal working fluid according to claim 1, wherein the broad-spectrum s-triazine bactericide is added in the fourth step in a mass fraction of 0.03 to 0.05% so that the concentration of the actual active ingredient of the working fluid of the bactericide is 0.01 to 0.03%.
4. The method as claimed in claim 1, wherein the filter cotton is one of non-woven fabric and pearl wool, and the filtering precision is 10 μm.
5. The method of claim 1, wherein the metalworking fluid pH raising agent is a mixture of one or more of triethanolamine, diethanolamine, dicyclohexylamine, potassium hydroxide, and sodium nitrite.
6. The method of claim 1, wherein the base number stock agent is a mixture of one or more of triethanolamine, diethanolamine, dicyclohexylamine, potassium hydroxide, and sodium nitrite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010090415.8A CN111254004A (en) | 2020-02-13 | 2020-02-13 | Water-soluble metal working fluid deterioration recovery method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010090415.8A CN111254004A (en) | 2020-02-13 | 2020-02-13 | Water-soluble metal working fluid deterioration recovery method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111254004A true CN111254004A (en) | 2020-06-09 |
Family
ID=70943673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010090415.8A Pending CN111254004A (en) | 2020-02-13 | 2020-02-13 | Water-soluble metal working fluid deterioration recovery method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111254004A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001044261A1 (en) * | 1999-12-17 | 2001-06-21 | Agip Petroli S.P.A. | Process for recovering oil and sulfonates from filtration panels |
| WO2014081960A2 (en) * | 2012-11-26 | 2014-05-30 | Memc Singapore Pte, Ltd. | Systems for the recycling of wire-saw cutting fluid |
| CN103865624A (en) * | 2014-02-24 | 2014-06-18 | 东莞市亚美精密机械配件有限公司 | Intelligent cyclic regeneration equipment for cutting fluid |
| CN106190523A (en) * | 2016-08-31 | 2016-12-07 | 中山市星友五金机械有限公司 | A kind of cutting fluid regenerating device |
| CN108865544A (en) * | 2018-07-30 | 2018-11-23 | 上海华巅流体分离科技有限公司 | A kind of cleaning agent regeneration method |
| CN108929766A (en) * | 2018-07-30 | 2018-12-04 | 上海华巅流体分离科技有限公司 | A kind of emulsion regeneration method |
-
2020
- 2020-02-13 CN CN202010090415.8A patent/CN111254004A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001044261A1 (en) * | 1999-12-17 | 2001-06-21 | Agip Petroli S.P.A. | Process for recovering oil and sulfonates from filtration panels |
| WO2014081960A2 (en) * | 2012-11-26 | 2014-05-30 | Memc Singapore Pte, Ltd. | Systems for the recycling of wire-saw cutting fluid |
| CN103865624A (en) * | 2014-02-24 | 2014-06-18 | 东莞市亚美精密机械配件有限公司 | Intelligent cyclic regeneration equipment for cutting fluid |
| CN106190523A (en) * | 2016-08-31 | 2016-12-07 | 中山市星友五金机械有限公司 | A kind of cutting fluid regenerating device |
| CN108865544A (en) * | 2018-07-30 | 2018-11-23 | 上海华巅流体分离科技有限公司 | A kind of cleaning agent regeneration method |
| CN108929766A (en) * | 2018-07-30 | 2018-12-04 | 上海华巅流体分离科技有限公司 | A kind of emulsion regeneration method |
Non-Patent Citations (3)
| Title |
|---|
| 张光华: "《水处理化学品制备与应用指南》", 31 October 2003, 北京：中国石化出版社 * |
| 张永军: "金属加工液再生技术", 《机械工程师》 * |
| 徐贺等: "T/CSEA 4―2018《金属加工液使用、维护、更换及其所用设备操作规范》团体标准解读", 《石油商技》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60216448T2 (en) | GRAM-POSITIVE FATTY ACID DERIVATIVES | |
| CN102718358B (en) | Sewage treatment method | |
| CN108085120A (en) | A kind of cutting fluid waste liquid exempts to discharge regenerated environment protecting treatment additive and method | |
| US5494580A (en) | Method of decontamination of a hydrocarbon-polluted environment by the use of bacterial compositions | |
| AU2003243811B2 (en) | Treating micro-organisms in water using boron conditioned enzymes | |
| CN102716674A (en) | Cleaning agent for ceramic membrane for oilfield produced water and cleaning method thereof | |
| CN103931644B (en) | Bactericidal and preservative agent combination for repair-regeneration of microbial pollution products | |
| CN106277598A (en) | The processing method of high salt height Organic substance industrial wastewater | |
| CN106277449A (en) | The processing method of acidic industrial effluent | |
| CN207671866U (en) | A kind of high saliferous high concentration hard-degraded organic waste water advanced treatment system | |
| CN111254004A (en) | Water-soluble metal working fluid deterioration recovery method | |
| Edewor | A comparison of treatment methods for palm oil mill effluent (POME) wastes | |
| CN101548678B (en) | Highly efficient composite bactericidal algaecide and preparation method | |
| CN110577859A (en) | Cleaning agent for DTRO (draw texturing yarn) membrane and preparation and use methods thereof | |
| JP2724111B2 (en) | Deterioration inhibitor for emulsified processing oil and method for preventing deterioration of emulsified processing oil using the same | |
| CN206735974U (en) | A kind of environment-friendly type used cutting liquid circulation purifier | |
| CN111434758A (en) | Slow-release sterilization multienzyme cleaning agent and preparation method thereof | |
| CN210595631U (en) | Zero-emission reprocessing device for strip steel wastewater | |
| CN107381828A (en) | A kind of complex microorganism preparations and application method for aid in treatment used cutting liquid | |
| CN110564516A (en) | neutral cleaning agent for cleaning MBR system | |
| Kad et al. | Experimental study on treatment of wastewater using garbage enzyme | |
| CN113444748B (en) | Cutting fluid degradation-resistant technology based on microorganisms | |
| CN107285444B (en) | YT-1 type water clearing agent | |
| Havryshko et al. | ENVIRONMENTAL PROBLEMS Vol. 6, No. 2, 2021 | |
| CN110787535A (en) | Efficient odor removing method applied to machining liquid in hardware workshop |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200609 |
|
| RJ01 | Rejection of invention patent application after publication |