On June 28, 2018 hengtian lixin national environmental protection annual meeting of the printing and dyeing industry was held in foshan, guangdong province, hosted by China printing and dyeing industry association and co-organized by lixin dyeing and finishing machinery (shenzhen) co., LTD.
The meeting focused on the latest environmental management policies of the printing and dyeing industry, coping with environmental challenges, enhancing technological innovation capacity, promoting advanced technologies in energy conservation and environmental protection, and collaborative governance of the industrial chain.
Li lingshen, vice President of China textile industry federation, introduced the economic operation of the domestic printing and dyeing industry in 2017 in his speech. From January to December 2017, the output of printing and dyeing cloth of printing and dyeing enterprises above the scale decreased by 1.71% year on year to 52.459 billion meters. The investment of fixed assets of printing and dyeing enterprises was actually 4.10.78 billion yuan, down by 7.14 percent year-on-year. The main business revenue of printing and dyeing enterprises was 357.128 billion yuan, up 6.56 percent year-on-year. "The shift from high-speed growth to high-quality development is becoming more obvious." "He concluded.
Li lingshen pointed out that at present, the printing and dyeing industry is in a period of pressure superposition, and green development is the only way for the industry to transform and upgrade. He suggested: "printing and dyeing enterprises should strive to cultivate the requirements for sustainable development of the industry and fight against pollution. We will accelerate the establishment of a green manufacturing system for the industry and coordinate green development in an all-round way. We will conscientiously implement environmental policies and regulations and standardize the path of industrial transformation and upgrading. We should continue to strengthen corporate social responsibility and practice the responsible orientation of green industry.
In recent years, with the continuous strengthening of the national efforts to protect the ecological environment, as a major consumer of water resources, the green transformation of the printing and dyeing industry is imperative. MAO zhiping, a professor in the school of chemistry and chemical engineering at donghua university, drew several conclusions from the monitoring results of waste water through a large number of enterprise surveys. Secondly, if the concern about nickel exceeding the standard is raised, it will have a great impact on the printing and dyeing industry. Third, the excessive content of trimethyltin compounds should be paid more attention. Finally, the source of cadmium ions needs to be determined.
In this regard, MAO zhiping summarized the direction of clean production technology for printing and dyeing. Total salt reduction techniques; Replacement technology of printing nickel screen; Substitution technology of PET polymerization catalyst; Tin compound substitution technique.
Professor cao jiashun from hohai university gave a lecture on the technology of separation and reuse of printing and dyeing wastewater. He introduced the technology of carbon dioxide instead of sulfuric acid and hydrochloric acid to neutralize alkaline wastewater in detail. At present, this technology has been widely used in many printing and dyeing enterprises, and the economic and social environmental benefits are remarkable.
"Printing and dyeing factories are facing energy shortages, higher environmental requirements, soaring labor costs and a shortage of labor." Huang junhua, CEO assistant of lixin dyeing and finishing machinery (shenzhen) co., LTD, said that printing and dyeing enterprises should perfect the application of automation equipment, intelligent system and digital data, promote the real green and efficient production of printing and dyeing industry, and change the image of traditional printing and dyeing industry with high energy consumption, high emission and high pollution. In this regard, lixin introduced the waste gas heat recovery device of the company's molding machine. It was reported that the device has obvious energy-saving effect and can effectively clean air. After being treated by waste gas heat recovery device, the gas is put into the atmosphere without harmful substances such as oil and gas, dust and wool, thus protecting the environment.
Yao hongqian, general manager of weihai shuangxin energy-saving and environmental protection equipment co., LTD., shandong shuanglun group, delivered a speech on energy-saving and emission reduction plans under the premise of thermal balance and water balance. The project USES the equipment to discharge process wastewater with certain amount of heat to obtain process hot water through thermal energy conversion and reduplication heating, so as to reduce consumption or substitute steam and reduce production cost. At the same time, the cooling capacity discharged by the unit can also cool the production workshop and relieve heat and improve the working environment.
Foshan shunde district DE boshi machinery equipment co., LTD. General manager huang beiyang Shared the setting machine agent application system. The system USES the wet cloth technology, which is simpler and faster than the previous drying process, and directly shapes the finished products. Improved stability and reduced rework; Increased productivity; Reduce COD pressure in sewage treatment.
In addition, this year's environmental protection annual meeting also released the 12th batch of "China printing and dyeing industry advanced technology recommendation catalogue", and advanced technology enterprises were commended.