Automation And Control Technology Helps Energy Saving And Emission Reduction In Printing And Dyeing Enterprises

< p > technical application site < /p >

< p > guest: Vice President of Hangzhou open source computer technology Co., Ltd. Jin Wan Shu < /p >

< p > < < a href= > http://www.91se91.com > printing and dyeing enterprise < /a > there are many problems in the production process due to lack of scientific production and process management system and scientific and effective monitoring, such as low accuracy, unstable quality, high reordering rate of orders, energy and water consumption can not be accurately controlled, waste is serious, dye / additives consumption can not be precisely controlled, and wastewater discharge is large.

The concise and concise statement of deputy general manager of Hangzhou open source computer technology Co., Ltd. points out the importance of printing and dyeing enterprises in full information management.

Based on this, the project "research and application of production management system for digital printing and dyeing production process detection control and automatic distribution" completed by the company has won the "textile light" 2012 China Textile Industry Federation first prize in science and technology.

< /p >

< p > "the use of high tech < a href=" http://cailiao.sjfzxm.com/Matertial/show/default.aspx > technical pformation < /a > and upgrading of textile printing and dyeing industry "is the company's concept. In Hangzhou open source, the average age of the 31 year old team of employees, accounting for 61% of undergraduate or intermediate level employees, and 46% of research and development personnel, will undoubtedly become a vigorous young force in the textile field.

< /p >

< p > host: what are the main characteristics of this technology and how to help the printing and dyeing enterprises to realize information management? < /p >

< p > Jin Wanshu: for the production and management system of digital printing and dyeing production process control and automatic distribution, combined with dyeing and finishing process, using computer science, artificial intelligence, precision measurement, automatic detection and control, automatic identification technology, the production and execution information platform of printing and dyeing enterprise is established, which is centered on dyeing and finishing expert system. Scientific production technology and formulation are formulated, on-line inspection and control of key process parameters of production process are accurately and accurately, accurate measurement and distribution of auxiliaries / dyestuff materials are carried out, so as to achieve the single cost of order cost, and realize the whole process information management of printing and dyeing enterprises from production end to management end.

< /p >

< p > host: how do these innovative points play a role in the actual application process? < /p >

< p > Jin Wanshu: first, we implemented the production and execution information platform based on dyeing and finishing expert system for printing and dyeing enterprises, and realized the information management in the whole process of printing and dyeing production.

The product of the project can realize the production process data downloaded to the production site in real time through the network. At the same time, the production process data are fed back to the management system in real time. By accumulating a large amount of accurate basic data, process data and result data, and using the dyeing and finishing expert system software, we can scientifically, accurately and quickly formulate the best production process and production process formula, and realize the information management of the whole process of printing and dyeing production.

< /p >

< p > secondly, change the traditional accounting method, develop the production management system with the order as the core, collect the data of material, energy and labor cost produced in every production process accurately, and make statistics, analysis and management of the data, so as to achieve the order cost (one color).

It can also achieve a comparative analysis between planned production cost and actual production cost, helping enterprises to determine the profit and loss status of each order, and provide data support for management decisions.

< /p >

< p > finally, a mathematical model for the viscosity, pressure and flow rate of auxiliaries / dyes is established, and the on-line accurate measurement of the various auxiliaries / dyes in the same pipeline and the fixed point and efficient delivery of the same rotor pump are realized.

On the one hand, we developed a mathematical model of multivariable curve based on the relationship between the viscosity of different auxiliaries / dyes, distribution pressure and flow rate. For the first time, the mathematical model was applied to control the quantitative output of the rotor pump, and on-line check with the high precision flowmeter. A closed loop control system was formed to achieve the accurate measurement of various auxiliaries / dyes by the same rotor pump.

< /p >

< p > on the other hand, we have distributed the patented product distributor and two bit three way node valve with different auxiliaries / dyestuffs through the same pipeline.

For the auxiliaries / dyestuffs which are not compatible with each other and with different ionic properties, the technology of segmented water distribution is adopted to ensure the safety of distribution.

< /p >

< p > host: for printing and dyeing enterprises, how can this innovation help enterprises upgrade their production management? < /p >

< p > Jin Wanshu: in addition to the above points, we have achieved the efficient communication of various signals by establishing a high reliable hardware communication platform.

In view of the present situation of many kinds of monitoring points and poor sharing in printing and dyeing enterprises, the application of multi serial data acquisition and synchronization technology, PLC logic control and communication technology, multi-threaded synchronization / asynchronous technology, etc., to establish a high reliable hardware communication platform, and realize the high efficient communication of various signals.

< /p >

< p > in addition, we have studied the digital interface which can connect mainstream printing and dyeing equipment at home and abroad. We have studied and analyzed the digital system interface of mainstream printing and dyeing equipment at home and abroad, realized the access function of the digital system of mainstream printing and dyeing equipment at home and abroad, and integrated the process data that can only be viewed from a single machine to the production execution information platform of the printing and dyeing enterprise, which is the core of the expert system, to realize the process download, feedback and control of the domestic dyeing and printing equipment, and to download and read the printing and dyeing equipment of foreign countries.

< /p >

< p > host: since the beginning of 2008, the technology achievement has been popularized to 36 sets. What is the response of users? < /p >

< p > Jin Wanshu: < a href= "http://www.91se91.com/news/" > the promotion of technology < /a > the effect is quite ideal. At present, we have achieved 112 million yuan in revenue, 29 million 140 thousand yuan in profits and 8 million 970 thousand yuan in taxes.

In the use report, Yixing Yue Qi company mentioned that the technology "solves the problems of high cost, high energy consumption and unstable quality caused by traditional management, and improves the level of fine management, and the effect of energy saving and emission reduction is obvious".

< /p >

< p > Shunde gold spinning also indicates that the technology realizes automatic measurement, centralized supply, automatic conveying and real-time monitoring of auxiliaries / dyes and chemicals.

To ensure the stability of fabric color and light, increase the rate of first-class products by more than 2%, reduce energy consumption by more than 10%, waste water discharge more than 12%, and reduce costs by more than 15%.

< /p >

< p > this technology promotes the integration process of information technology and textile printing and dyeing industry. The demonstration effect is remarkable. It plays a positive role in promoting the technological progress and upgrading of the industry. The effect of energy saving and emission reduction of products is obvious, which is conducive to alleviating the environmental pressure of the industry.

< /p >