阅读说明：本技术 一种水基金属加工液废液再生回用处理剂及再生回用处理方法 (Water-based metal working fluid waste liquid regeneration and reuse treating agent and regeneration and reuse treating method ) 是由 王成 赵天祥 于 2019-11-27 设计创作，主要内容包括：本发明公开了一种水基金属加工液废液再生回用处理剂,所述处理剂原料按重量百分比包括以下组分：乳化剂20-30％、碱调节剂10-15％、抗菌剂3-5％、有色金属缓蚀剂2-5％,余量为去离子水加至100％；所述乳化剂为NEUF192、自乳化酯Priolube、T-80、蓖麻油聚氧乙烯醚、聚乙二醇月桂酸酯、聚乙二醇油酸酯中的一种或两种以上混合物；有效利用残留的有效组分,把入侵的润滑油乳化溶解,转化为加工液有效组分并利用,且不损坏加工废液中的有效成分,经再生处理后的金属加工液废液能够在机床中长期稳定运行,并保证金属加工过程顺利进行,再生液返还机加工车间继续使用,真正达到免排放无二次污染物产生。(The invention discloses a treating agent for recycling water-based metal working fluid waste liquid, which comprises the following raw materials in percentage by weight: 20-30% of emulsifier, 10-15% of alkali regulator, 3-5% of antibacterial agent, 2-5% of nonferrous metal corrosion inhibitor and the balance of deionized water to 100%; the emulsifier is one or a mixture of more than two of NEUF192, self-emulsifying ester Priolube, T-80, castor oil polyoxyethylene ether, polyethylene glycol laurate and polyethylene glycol oleate; the residual effective components are effectively utilized, the invaded lubricating oil is emulsified and dissolved, the effective components of the processing liquid are converted into the effective components of the processing liquid and utilized, the effective components in the processing waste liquid are not damaged, the metal processing liquid waste liquid after regeneration treatment can stably run in a machine tool for a long time, the metal processing process is ensured to be smoothly carried out, the regenerated liquid is returned to a machining workshop for continuous use, and the purposes of avoiding discharge and generating no secondary pollutants are really achieved.)

1. The water-based metal working fluid waste liquid regeneration and reuse treating agent is characterized in that: the treating agent comprises the following raw materials in percentage by weight: 20-30% of emulsifier, 10-15% of alkali regulator, 3-5% of antibacterial agent, 2-5% of nonferrous metal corrosion inhibitor and the balance of deionized water to 100%; the emulsifier is one or a mixture of more than two of NEUF192, self-emulsifying ester Priolube, T-80, castor oil polyoxyethylene ether, polyethylene glycol laurate and polyethylene glycol oleate.

2. The water-based metal working fluid waste liquid recycling treatment agent as claimed in claim 1, characterized in that: the alkali regulator is one or a mixture of more than two of AMP-95, isopropanolamine, morpholine and triethanolamine borate.

3. The water-based metal working fluid waste liquid recycling treatment agent as claimed in claim 2, characterized in that: the non-ferrous metal corrosion inhibitor is one or two of hydroxybenzotriazole and fatty alcohol ether carboxylic acid.

4. The water-based metal working fluid waste liquid recycling treatment agent as claimed in claim 1, characterized in that: the self-emulsifying ester Priolube is one or a mixture of more than two of Priolube3952, Priolube3953 and Priolube 3955.

5. The water-based metal working fluid waste liquid recycling treatment agent as claimed in claim 1, characterized in that: the treating agent comprises the following raw materials in percentage by weight: 25% of emulsifier, 12% of alkali regulator, 4% of antibacterial agent, 3% of nonferrous metal corrosion inhibitor and the balance of deionized water to 100%.

6. A method for recycling and treating waste water of water-based metal working fluid is characterized by comprising the following steps: the method comprises the following steps: a. carrying out oil and impurity removal treatment on the waste liquid;

b. sterilizing the treated waste liquid;

c. the recycling treatment agent according to claim 1 is added to the sterilized waste liquid.

7. The method for recycling and treating the water-based metal working fluid waste liquid according to claim 6, characterized in that: and in the step a, standing the waste liquid for more than 24 hours, removing the upper layer of floating oil, and performing centrifugal separation on the lower layer of waste liquid to remove metal fine scraps.

8. The method for recycling and treating the water-based metal working fluid waste liquid according to claim 7, characterized in that: in the step b, the treated waste liquid is heated to 65-75 ℃, stirred and kept warm for more than 2 hours.

9. The method for recycling and treating the water-based metal working fluid waste liquid according to claim 7, characterized in that: and in the step b, carrying out sterilization treatment by adopting ozone or hydrogen peroxide.

10. The method for recycling and treating the water-based metal working fluid waste liquid according to claim 6, characterized by comprising the following steps: the addition amount of the regeneration and reuse treating agent is 1-3% of the waste liquid.

Technical Field

The invention relates to the field of industrial waste liquid treatment, in particular to a water-based metal working fluid waste liquid recycling treatment agent and a recycling treatment method.

Background

The water-based metal cutting fluid is a cooling lubricant for metal cutting. The high-precision corrosion-resistant steel is used as an important matching material for machining, is one of the indispensable production factors in most machining, and is mainly used for improving the surface quality of a workpiece, improving the machining precision, prolonging the service life of a cutter and improving the corrosion resistance of the surface of the workpiece through the actions of cooling, lubricating, cleaning, rust prevention and the like. The water-based metal cutting fluid creates great benefits for human beings, and simultaneously poses great threats to the health and environment of human beings, and particularly, the waste water of the water-based metal cutting fluid which is not effectively treated can cause serious pollution to the environment. For example, the accumulation of the antirust phosphate radical in the cutting fluid can cause rivers and lakes to appear as red lakes due to eutrophication; the antiseptic bactericide phenol, mineral oil and surfactant have poor biodegradability and toxicity to aquatic organisms such as fish; chlorinated paraffin is one of the seawater pollutants. In order to prevent the cutting fluid from polluting the environment, the discharge of the waste water of the cutting fluid must be avoided from the source. However, the cutting fluid is inevitably mixed into machine tool lubricating oil, dust, metal chips, bacteria, fungi and other impurities in the using process, so that the cutting fluid is turbid, grey and black, smelly, and loses the cooling, lubricating, cleaning, antirust and other functions to become waste liquid. In order to prevent the waste liquid from polluting the environment, the waste cutting liquid must be recycled.

Disclosure of Invention

In view of the above, the present invention aims to provide a treatment agent for recycling water-based metal working fluid waste liquid and a recycling treatment method thereof, which reduce the discharge of waste liquid and realize the recycling of water-based metal working fluid by recycling the waste liquid.

The treatment agent for regenerating and recycling the waste water of the water-based metal working fluid comprises the following raw materials in percentage by weight: 20-30% of emulsifier, 10-15% of alkali regulator, 3-5% of antibacterial agent, 2-5% of nonferrous metal corrosion inhibitor and the balance of deionized water to 100%; the emulsifier is one or a mixture of more than two of NEUF192, self-emulsifying ester Priolube, T-80, castor oil polyoxyethylene ether, polyethylene glycol laurate and polyethylene glycol oleate;

further, the alkali regulator is one or a mixture of more than two of AMP-95, isopropanolamine, morpholine and triethanolamine borate;

further, the non-ferrous metal corrosion inhibitor is one or two of hydroxybenzotriazole and fatty alcohol ether carboxylic acid;

further, the self-emulsifying ester Priolube is one or a mixture of more than two of Priolube3952, Priolube3953 and Priolube 3955.

Further, the treating agent comprises the following raw materials in percentage by weight: 25% of emulsifier, 12% of alkali regulator, 4% of antibacterial agent, 3% of nonferrous metal corrosion inhibitor and the balance of deionized water to 100%.

The invention also discloses a water-based metal working fluid waste liquid regeneration and reuse treatment method, which comprises the following steps:

a. carrying out oil and impurity removal treatment on the waste liquid;

b. sterilizing the treated waste liquid;

c. adding the recycling treatment agent of claim 1 to the sterilized waste liquid;

further, in the step a, standing the waste liquid for more than 24 hours, removing upper-layer floating oil, and performing centrifugal separation on the lower-layer waste liquid to remove metal fine scraps;

further, in the step b, heating the treated waste liquid to 65-75 ℃, stirring and preserving heat for more than 2 hours;

further, in the step b, ozone or hydrogen peroxide is adopted for sterilization treatment;

furthermore, the addition amount of the regenerated and recycled treating agent is 1-3% (concentration) of the waste liquid.

The invention has the beneficial effects that: the water-based metal working fluid waste liquid recycling treatment agent and the recycling treatment method have the advantages that the adopted recycling treatment agent has excellent performances of lubricating, miscellaneous oil emulsifying, cleaning, rust prevention, hard water resistance, stable PH value and the like, the residual effective components are effectively utilized through the synergistic cooperation of the emulsifier, the alkali regulator, the antibacterial agent and the corrosion inhibitor, the invaded lubricating oil is emulsified and dissolved, the invaded lubricating oil is converted into the effective components of the working fluid and utilized, the effective components in the working fluid are not damaged, the metal working fluid waste liquid after recycling treatment can stably run in a machine tool for a long time, the metal working process is ensured to be smoothly carried out, the recycling fluid is returned to a machining workshop for continuous use, the purposes of avoiding discharge and generating no secondary pollutants are really achieved, the recycling of the metal working fluid waste liquid is realized, the environment is protected, no pollution is caused, and the economic cost is saved. The method is suitable for treating the waste liquid of metal processing liquid (such as cutting liquid and wire cutting liquid) which is smelly, deteriorates, changes color and seriously reduces the use performance, or the metal processing liquid which cannot recover the use performance by other methods can quickly recover the use performance of the metal processing liquid and reach the normal use standard.

Detailed Description

The treating agent for regenerating and recycling the waste water of the water-based metal working fluid comprises the following raw materials in percentage by weight: 20-30% of emulsifier, 10-15% of alkali regulator, 3-5% of antibacterial agent, 2-5% of nonferrous metal corrosion inhibitor and the balance of deionized water to 100%; the emulsifier is one or a mixture of more than two of NEUF192, self-emulsifying ester Priolube, T-80, castor oil polyoxyethylene ether, polyethylene glycol laurate and polyethylene glycol oleate; through the synergistic cooperation of the emulsifier, the alkali regulator, the antibacterial agent and the corrosion inhibitor, the residual effective components are effectively utilized, the invaded lubricating oil is emulsified and dissolved, is converted into the effective components of the processing fluid and is utilized, the effective components in the processing waste liquid are not damaged, the performances of lubrication, impurity oil emulsification, cleaning, rust prevention, hard water resistance, stable PH value and the like are improved, the metal processing fluid waste liquid has various excellent performances of the processing fluid again, and the aim of recycling the waste liquid is fulfilled. The NEUF192 is a polyester emulsifier NEUF192 produced by Noita biotechnology (combined fertilizer) limited, has good hard water resistance, cleaning property and emulsion stability, also has strong antibacterial and bactericidal functions, and has synergistic enhancement effect when being used together with an antibacterial agent. Priolube is a multifunctional product integrating the base oil and emulsifying performance of lubricating ester, has better stability of lubrication, emulsification and hard water, and has synergistic effect with NEUF192 as an emulsifier. T-80 is Tween 80.

In the embodiment, the alkali regulator is one or a mixture of more than two of AMP-95, isopropanolamine, morpholine and triethanolamine borate; the pH value of the waste liquid is adjusted by the alkali regulator, and the antirust property and the cleaning performance are improved. AMP-95 is 2-amino-2-methyl-1-propanol with a structural formula of (CH3)2C (NH2) CH2OH, is a multifunctional amine assistant, and has effects of adjusting pH value of emulsion adhesive to be stable, moistening and dispersing

In the embodiment, the nonferrous metal corrosion inhibitor is one or two of hydroxybenzotriazole and fatty alcohol ether carboxylic acid; the fatty alcohol ether carboxylic acid not only has the corrosion inhibition effect in the formula, but also has the calcium soap dispersing effect. The hydroxybenzotriazole is 1-hydroxybenzotriazole.

In the embodiment, the self-emulsifying ester Priolube is one or a mixture of more than two of Priolube3952, Priolube3953 and Priolube 3955.

In the embodiment, the treating agent comprises the following raw materials in percentage by weight: 25% of emulsifier, 12% of alkali regulator, 4% of antibacterial agent, 3% of nonferrous metal corrosion inhibitor and the balance of deionized water to 100%. Is a preferred embodiment.

The invention also discloses a water-based metal working fluid waste liquid regeneration and reuse treatment method, which comprises the following steps:

a. carrying out oil and impurity removal treatment on the waste liquid;

b. sterilizing the treated waste liquid;

c. adding the recycling treatment agent of claim 1 to the sterilized waste liquid; the method is suitable for treating the waste liquid of metal processing liquid (such as cutting liquid and wire cutting liquid) which is smelly, goes bad, changes color and has seriously reduced use performance, or the metal processing liquid which can not recover the use performance by other methods. The regenerated liquid is returned to a machining workshop for continuous use.

In the embodiment, in the step a, the waste liquid is kept stand for more than 24 hours, then the upper layer of floating oil is removed, and the lower layer of waste liquid is subjected to centrifugal separation to remove metal fine scraps; the collected floating oil and metal fine scraps can be recycled, so that the resource reutilization is realized, and the waste is avoided.

In the embodiment, in the step b, the treated waste liquid is heated to 65-75 ℃, stirred and kept warm for more than 2 hours; thoroughly kill bacteria and fungi.

In this embodiment, in step b, ozone or hydrogen peroxide is used for sterilization; killing bacteria and fungi.

In this embodiment, the addition amount of the recycling treatment agent is 1 to 5% (concentration) of the waste liquid. The sample is subjected to a physicochemical analysis experiment according to the technical indexes of the cutting fluid, appropriate additives are supplemented to reach the technical indexes of the cutting fluid according to physicochemical analysis data, main physicochemical indexes such as appearance, storage stability, pH value and the like of the processing fluid are detected according to national standards or industrial standards, the processing fluid is used continuously according to requirements, and if the processing fluid does not meet the requirements, a recycling treatment agent is added properly until the processing fluid is qualified.