Cutting fluid dangerous waste liquid workers allergic (scene shot)

■ Environmental Protection Law of the People's Republic of China

■ Article 338 of the Criminal Law

■ Interpretation of the Supreme People's Court and the Supreme People's Procuratorate on Several Issues concerning the Application of Law in Handling Environmental Pollution Criminal Cases (Note (2016) No. 29)

■ On June 5, 2019, the Executive meeting of The State Council adopted the revised Draft Law of the People's Republic of China on the Prevention and Control of Environmental Pollution by Solid Waste.

■ In December 2015, the first round of central ecological and environmental supervision was launched, and on May 15, 2019, the full coverage of the supervision was completed and 20 provinces were "looked back". In the first round of routine inspections, 387 cases of accountability were transferred to local authorities, and 4,218 people were held accountable.

■ The second round of central ecological and environmental supervision was launched in July 2019. By August 15, 1,365 leading Party officials had been interviewed and 234 held accountable.

 

 

Punishments for violations of environmental protection laws were increased throughout the country

▷ On November 22, 2018, Guangdong Public TV reported that there was a "milk river" in Anfu Village, Xingtan Town, Shunde. The staff of Xingtan Huanyun Branch initially judged that it was caused by the emulsion oil from the hardware factory, and intervened in the investigation.http://news.ximanw.com/dongguan/1079.html

▷ On October 13, 2018, a small river along Fangjiadai Road, Haiyan Economic Development Zone, Jiaxing City, Zhejiang Province, was full of emulsified oil. Cloughfield (Zhejiang) Machinery Co., LTD., along with the rainwater pipe network into the external environment, relevant environmental protection departments have been involved in the investigation.http://www.zjgc.net/index.php/news_show-id-1052.html

▷ In June 2018, the second instance of Jinhua Intermediate People's Court of Zhejiang Province, Zhejiang Yongkang Yifeng Tool Manufacturing Co., Ltd. stored waste cutting fluid at will, allowing it to leak and discharge; If the company commits the crime of polluting the environment, it shall be fined 20,000 yuan; Legal person fixed-term imprisonment of seven months and a fine of 6,000; The workshop manager was sentenced to six months in prison and fined 4,000. (China Judicial Documents Website: Zhejiang 07 Xingend No.456)

▷ In January 2018, Shanghai No. 3 Intermediate People's Court ruled that Liu and Yang had dug, dumped and disposed of waste oil and saponified liquid (29.04 tons) by the edge of an outdoor forest. Liu XX was sentenced to nine months in prison and fined 10,000 yuan for the crime of environmental pollution; Yang was sentenced to six months of detention and fined 5,000. (Chinadaily.com.cn: Shanghai 03 Xingshou No.46)

▷ On December 13, 2017, Shenzhen Dingyuxing Precision Co., Ltd. discharged untreated blue cutting fluid waste water directly into the river, and expanded without approval; The environmental protection department registered a case on the spot, sealed up its sewage equipment, ordered it to stop production for rectification, and was later fined 400,000 yuan by the environmental protection department.http://gdee.gd.gov.cn/shenzhen3073/content/post_2328542.html

▷ On September 10, 2017, the central environmental protection inspector ordered the Fine Aluminum Co., Ltd. to stop production and impose a fine of 73,000 yuan on the behavior reported by the public for violating the EIA system and the "Three simultaneous" system. The company shall be ordered to stop the illegal act, correct within a time limit, and impose a fine of 98,000 yuan on it.

▷ In December 2017, Dalian Jinzhou District People's Court ruled that Dalian Mingji Precision Components Co., Ltd. dumped waste cutting fluid into the sewage network through the seepage well; To impose a fine of 100,000 yuan on the company for environmental pollution crimes; The legal person was sentenced to fixed-term imprisonment of six months, suspended for one year, and fined 20,000 yuan. (China Judgment Documents Website: Liao 0213 Xingchu No. 597)

▷ In November 2017, the People's Court of Changshu City, Jiangsu Province decided that Suzhou Lianyi Stainless Steel Manufacturing Co., LTD. Factory pit waste discharge cutting fluid case; Luo Feng was sentenced to seven months in prison and fined 10,000 yuan for polluting the environment. (China Judgment Documents Website: Su 0581 Xingchu 1959)

▷ In April 2017, Shanghai Third Intermediate People's Court of the second instance of Shanghai Xiangchang Electromechanical Technology Co., LTD., dumping cutting fluid waste in the soil trench outside the workshop and flowing into the rainwater pipe of the factory through the open trench; If the company commits the crime of environmental pollution, it shall be fined 100,000 yuan; Sentenced the legal person to fixed-term imprisonment of one year and three months and fined 10,000 yuan; The person in charge of the production workshop and the two operators were sentenced to fixed-term imprisonment and fines. (China Judgment Documents Website: Hu 03 Xingshou No.4)

 

Tool life

Tool wear will reduce tool life and affect machining accuracy.

Tool wear includes normal wear and abnormal wear. Abnormal wear is closely related to temperature (emulsion cooling performance) and particulate matter.

Cooling good cutting fluid local high temperature generally will not exceed 650℃, poor will reach 800 ℃

Once the temperature exceeds 800 ℃, it is easy to lead to oxidation of coating, tool wear faster and more obvious.

Statistics show that 43% of wear is related to particles. The 10-80μm particles have the same damage to the tool as the large particles, accounting for a higher proportion.

Studies have shown that impurities in cutting fluid:

From 40µm to less than 10µm, tool (or grinding wheel) life can be extended by 1 ~ 3 times;

When the tool is reduced from 20μm to 10μm, the tool durability can be extended 2 ~ 4 times.

 

 

Particles not only damage the tool, but also affect the machining accuracy, forming scratches on the surface of the processed material. For some finishing processes, these scratches are unacceptable.

 

 

Human health effects, mainly caused by its components and contaminants (especially microorganisms and their decay products) entering the working fluid:

■ Influence of components: Among them, mineral oil, sodium nitrite, chlorine extreme pressure additives will cause carcinogenic or strong carcinogenic substances, sulfur additives will produce odor under the action of microorganisms.

■ Microbial influence: When the microbial content reaches 106CFU/mL, the cutting fluid will stink and the site environment is unbearable; Among them, if the relevant microorganism * is infected by the human body, the minor will cause all kinds of inflammation, and the serious will cause uremia, sepsis, carcinogenesis, teratogenesis and so on.

■ Effects of inhalation: The cutting fluid will evaporate into the air, which will cause respiratory organ damage and respiratory diseases, such as cough, chronic bronchitis, rhinitis, etc.

■ Effects of exposure: It can cause dry skin, degrease, cracking, eczema, redness, folliculitis, acne, pus (pus), lung disease, and even cancer.

 

 

Application problem

■ In the process of using cutting fluid, it will eventually face three major problems: particle problem, miscellaneous oil problem and odor problem

■ The root cause of odor lies in microorganisms, which are closely related to particles and oils

 

In view of the above problems, whether machine tool manufacturers or service providers, put forward a variety of solutions, the effect is not ideal

 

Particle problem

 

 

 

Miscellaneous oil problem

 

 

 

Summary of solutions to cutting fluid problems