Textile Experts: Inquiring About Energy Saving And Emission Reduction, Prescribe Feasible Prescriptions

< p > < strong > eight, enhance energy saving space < /strong > /p >

< p > < strong > Zhengzhou Hongda spinning new technology consulting Co., Ltd. Wang Weimin < /strong > < /p >

< p > core view: at present, the whole < a target= "_blank" href= "http://www.91se91.com/" > textile < /a > the industry is facing environmental pressure, the government is facing the pressure of indicators, and enterprises are faced with pressure of capital, technology and cost.

The development of printing and dyeing industry will be affected by environmental protection, which will affect the entire textile industry. The pressure of emission reduction is far greater than that of energy conservation.

Therefore, enterprises must pay attention to the ecological problems in every link of the production process, and speed up the work of energy conservation and emission reduction.

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Since P 2011, the experts from the Jiangsu textile and Environmental Protection Commission have successively carried out energy saving "free clinic" for 8 enterprises such as Dasheng Group Co., Ltd., Wuxi first cotton mill, Anhui Huamao Group Co., Ltd., Huarun Textile Group Co., Ltd., mutual Textiles Holdings Limited, cheerful home textiles, Jiangsu Sunshine Group, Yaguang home textiles, etc., and gave some suggestions on technical pformation.

Through voluntary consultation, we believe that enterprises should pform from labor-intensive to technology intensive, such as Wuxi one cotton, which has high quality, low energy consumption, less employment, and 25 workers employing ten thousand ingots. To gather from scattered to the park, the park has high resource allocation and low cost; from low level expansion to industrial chain integration, high-end products and industrial chain should be extended; from high energy consumption to low carbon ecology, because this can directly reduce costs.

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< p > energy efficiency in building systems, it is recommended to revise the energy conservation design standard for cotton mill buildings, and balance the utilization of surplus heat (hot air) in the workshop. The photoelectric design and photothermal load should be reserved for roofing design, and the rainwater collection and reuse system should be reserved for water supply and drainage design, considering the design of multi-storey factory buildings.

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< p > energy saving aspects of air conditioning system, it is recommended to standardize the design standards of air conditioning for cotton textile factories, set up regional design standards, standardize the catalogue of technical equipment for textile air-conditioners, spray, refrigeration and heating, adopt efficient motor and function control, and strengthen the balance utilization of residual heat (hot air) in winter, and adopt various cooling and cooling methods in summer.

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< p > energy saving of motor system, it is suggested that YE3 (two level), YE2 and YX3 can be selected according to the reasonable load of motor and the replacement of high efficiency motor, and the frequency conversion motor should be selected reasonably, and the economic analysis of the motor should be replaced.

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< p > energy saving in the boiler system, clean fuels such as natural gas, biomass fuel, condensate water reuse and efficient insulation measures should be adopted to reduce heat loss.

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< p > clean power quality. For single power with larger current and larger power, it can use harmonic elimination to eliminate harmonic. For single machine with small current and little power, multi machine remote control can be adopted. It is suggested to use active power filter device and increase series reactor to reduce the amplification of harmonics by the capacitor, and build an online monitoring system for power quality, so as to find out the hidden harm of harmonics to the system in time.

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< p > air pressure system, it is recommended to install air compressor cluster expert control system, air compressor energy saving auxiliary system, desiccant, water pump, gas storage tank, cooling water circulation monitoring system, electricity metering, gas flow metering management system, gas supply pipeline detection system; according to the needs of industry, rationally select compressed air pressure, gas tank capacity, pipe diameter and process; rationally select the location of air compressor station, and effectively use air pressure hot air and hot water recovery, configure the number of centrifuges and screw machines to meet the best matching of energy consumption, configure power frequency machine and frequency converter to adapt to the fluctuation of gas consumption.

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< p > energy management system, the enterprise energy consumption on-line monitoring and management platform can solve the problems of manual meter reading report, data analysis seriously lagging behind, data randomness, and timely feedback. The construction of energy online monitoring management system and production network management and control system can reduce the operation cost of energy system, improve labor productivity, increase the reaction speed of emergency, optimize power dispatching and balance power consumption, and save energy consumption.

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< p > process management system, reasonable design method drafting and distributing process; under the premise of satisfying quality, reasonably modulate and use cotton, increase production rate and reduce unit consumption; ensure equipment condition, rationally select equipment, improve equipment yield and reduce energy consumption; rationally allocate air conditioning system to meet the best temperature and humidity of spinning and weaving process; weaving system rationally allocate yarn quality and sizing quality.

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< p > < strong > five key points to achieve cleaner production < /strong > < /p >.

< p > < strong > Guangzhou Hong Yu Environmental Protection Technology Co., Ltd. Yang Aimin < /strong > < /p >

< p > core point of view: cleaner production is a new thing and a way of thinking.

We need to correctly understand and apply the principles and methods of cleaner production, fully mobilize the leadership and staff of enterprises, improve the management and change the thinking with the reality of enterprises, constantly find the space of energy conservation and consumption reduction, and find ways to reduce production costs and find ways to reduce the production and discharge of pollutants.

Cleaner production is a continuous work. Continuous process requires long-term adherence of enterprises.

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< p > < strong > after years of clean production practice, we summarize the following five key points: < /strong > < /p >

< p > one is to pay attention to source control, material and energy consumption, pollutant emission and accidents and problems are the three sources of cleaner production in textile and dyeing enterprises.

Specifically, controlling the source of material and energy consumption is to control costs. This is what most enterprises attach importance to. The source of controlling pollutants is to reduce unnecessary pollution. The source of controlling accidents and problems is to control costs. This requires a series of systematic work to achieve the goal, such as controlling the success rate of technology.

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< p > two is to carry out energy saving and water saving work systematically.

After years of publicity and guidance, energy saving and water saving technologies and technologies have been taken seriously by most enterprises. However, in concrete practice, no specific or systematic analysis of water-saving and energy saving will be made, and the efficiency will be greatly reduced, which may cause unnecessary losses.

The correct way should be systematic analysis of water consumption and energy consumption, and the implementation plan and measures should be determined on the basis of systematic analysis.

For example, in the process of fabric washing, enterprises can reduce the energy consumption by lowering the water temperature.

But if the waste heat recovery work is done well and there are more hot water, then we can use the method of raising the washing temperature and reducing the washing times to save water.

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< p > three is the bold use of new technology and new equipment.

At present, the enthusiasm of enterprises to use new equipment and new technology has been greatly improved than before. However, some enterprises are limited to inertial thinking in the process of using new equipment and new technologies.

For example, in batch dyeing, we are willing to accept the low bath ratio dyeing technology such as air flow dyeing machine, but are less willing to accept cold pad dyeing technology. This is not only restricted by the lack of skilled personnel, but also related to the consciousness of the responsible person.

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< p > four is to improve management means and strengthen management ability.

It is necessary to invest funds in purchasing equipment and implement water-saving, energy saving and cleaner production projects, which can greatly improve the level of cleaner production of enterprises.

However, it is unrealistic to put all the hope of improving the level of cleaner production in the investment of equipment, and it should also be realized through management.

On the contrary, under the existing conditions, the level of cleaner production can be improved by strengthening management.

With the continuous development of various technologies, management means should also be improved.

Therefore, in terms of management, we should not only strengthen, but also innovate the system to adapt to the development of the new situation.

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< p > five is trying to overcome some problems existing in the printing and dyeing industry.

Such as heavy branches, light systems, heavy equipment, light management, heavy investment, light maintenance, heavy hardware, light talent and so on.

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< p > < strong > solar thermal utilization technology has broad development prospects < /strong > < /p >

< p > < strong > Beijing Zhongke Heyuan Energy Saving Technology Co., Ltd. Miao Jing Yi < /strong > < /p >

< p > core point of view: in line with the demand for energy in China's industrial field, according to the requirements of low cost and large-scale utilization of solar energy, it is necessary to develop feasible and efficient unit solar energy medium temperature conversion and utilization devices, and promote the industrialization and large-scale utilization of solar energy medium temperature collector. It is of great significance to improve the efficiency and reliability of medium temperature solar energy convertion device and promote the application of solar energy in many fields such as industrial heating.

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< p > because of the poor utilization of solar energy and the lack of communication between industrial and energy industries, the application of solar thermal technology in China's industrial field is relatively slow. Apart from Changshu Kaida printing and dyeing factory, Foshan Jia Lida textile printing and dyeing mill and Zhejiang Daly printing and dyeing mill, few other companies use solar energy medium temperature heat utilization technology.

Foreign research on the application of solar thermal technology in the industrial field began in the late 70s of last century.

12 countries in Europe and the United States have investigated and studied the hot grade in the industrial field.

The International Energy Agency launched the solar heating and cooling plan (IEASHC) in 1976. In 1977, the solar thermal power and solar energy chemical energy system plan (SolarPACESProgram) was launched by the 7 countries of the United States, Russia, Germany, Australia, Israel, Switzerland and Spain as the Executive Committee. The current situation of solar energy technology and its application in the industrial thermal process were also studied.

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< p > industrial sector is the largest consumer of energy in China.

According to statistics, the total energy consumed by industrial production accounts for 70% of the total energy consumption of the whole country, of which 50% to 70% is the heat for industrial processing.

For different industrial sectors, the heat load distribution is also different, but the temperature generally does not exceed 250 degrees, and the pressure is below 9 atmospheric pressure.

According to the thermal demand of the industrial thermal process, the potential of heating industry in solar energy industry was analyzed in nine industries: tobacco, < a href= "http://www.91se91.com/news/index_c.asp" > textile > /a > medicine, food, paper making, building materials and so on.

These industries account for 22.5% of the gross industrial product, and the total energy consumption of the research industry accounts for more than 22.7% of the total industrial energy consumption.

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< p > in China, the thermal energy consumption of these industries is different because of their different production processes.

According to the data of 2007, the higher value of thermal energy consumption is chemical industry, paper making industry, food processing industry and textile industry.

In the future development, paper industry, food industry and textile industry have great potential to apply solar thermal technology.

It is estimated that if 10% of the heating energy in different industries is supplied by solar energy, the required collector area will reach 1 billion 100 million square meters.

The industry studied has 10% thermal energy substitution, the annual energy can reach 26 million 630 thousand tons, and the emission reduction of carbon dioxide is 93 million 340 thousand tons.

The required collector area is 273 million 330 thousand square meters, much larger than the collector area of the existing solar water heater.

According to the current solar hot water system, the installed area of hot water is installed at 150 million square meters and the annual output value is 65 billion yuan. The industrial heating of solar energy is widely applied in the industries analyzed. The thermal energy consumption is 10%. The solar energy is replaced by the medium temperature heating. The annual output value reaches at least 100 billion yuan, corresponding to the annual coal consumption of about 1 million tons. The simple calculation corresponds to the emission reduction of 3.2 billion tons of carbon dioxide. According to China's emission of carbon dioxide in 2006, the emission reduction is about 5%.

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< p > < strong > three levels to realize printing and dyeing digitalization < /strong > < /p >.

< p > < strong > Changzhou Hongda Technology Group Gu Ren < /strong > /p >

< p > the core point: the successful application of intelligent management and control system of textile printing and dyeing greatly improves the automation of the production process of textile printing and dyeing enterprises. By realizing the digital management of the production process, it provides strong support for the upgrading of enterprises, guarantees the optimization of production process, improves the quality of products, improves the production conditions of workers, and fundamentally changes the mode of production of enterprises, thereby greatly reducing production and management costs, and saving raw material consumption and reducing pollution.

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"P", according to the actual situation of the existing equipment and printing and dyeing enterprises in China, Changzhou Hongda through the following three levels of promotion and application to realize the digital control of printing and dyeing, improve the printing and dyeing industry automation and intelligent information level.

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< p > first, to realize on-line inspection and automatic control of the key points of the existing production process, mainly to realize the automatic control of a single key point or several key technological parameters of a certain processing technology.

It includes on-line measurement and control of concentrated alkali concentration, pH value, moisture content, moisture content, fabric width, fabric seam head and hydrogen peroxide concentration.

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< p > second realizes automatic control and digitalization management of single station: by quantifying the process parameters of a single station, overcoming the errors caused by human factors, and achieving good reproducibility through memory and storage process menu, greatly improving the success rate.

The main products are: digester and bleaching machine integrated intelligent digital information integration solution, dyeing machine intelligent digital information integration solution, mercerizing machine intelligent digital information integration solutions.

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< p > third to realize digital control and digital management in the production process: continuous detection and control of various processes in the printing and dyeing process and digitalized management of the network, and effective management of water, electricity, gas energy consumption, output and finished product rate in the production process, so as to achieve the purpose of printing and dyeing numerical control.

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The printing and dyeing intelligent information control system of P has been successfully applied to printing and dyeing enterprises in Zhejiang, Shandong, Fujian, Guangdong and Jiangsu provinces, such as Zhejiang Huili, Zhejiang Qingmao, Zhejiang Qingxing, Zhejiang dyeing and finishing, Hangzhou Tiancheng dyeing and printing, Yida dyeing and printing, Lian Lian FA shares, Qili Ruyi group, Shexiang home textile, Fenghuang Dongxiang printing and dyeing, luorutai Textile Co., Ltd., Hua Hua Lun, Xin Feng Feng (HUI) printing and dyeing, Qianjin denim, South China dyeing and printing company, Nanhai yexixiang weaving and dyeing, and so on, and praised by users.

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< p > the company has launched a series of online inspection products that help dyeing and printing enterprises realize energy saving and emission reduction, and has successfully developed a series of automation products, such as digital inspection cloth system, textile air conditioning intelligent control system and ring spinning intelligent online monitoring system, which provide support for textile enterprises to achieve energy saving and emission reduction.

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< p > Digital Inspection cloth system uses machine vision technology instead of human eye to detect defects in moving fabric.

At present, there are no precedents in China. The repeatability, objectivity and long-term stability of machine vision applications are better than those of human eyes. Applying machine vision to fabric defect detection can not only reduce the loss caused by the quality problems of factory products, but also greatly reduce the number of testing workers, so that the annual net profit of enterprises can be greatly improved.

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< p > "textile air conditioning and energy saving intelligent control system", through controlling, regulating and monitoring all air treatment processes, automatically regulates the air conditioning in the workshop, and uses the D-Ctrl 6000 System expert module to cooperate with the on-site sensors, pmitters and optimization control algorithms to calculate the optimal operation data.

Through on-site execution system, timely adjust the fan motor, pump motor, valve opening, and the ratio of new return air, and make full use of suitable outdoor air to get free air conditioning. The system can control independently according to weather conditions and production process changes, meet the requirements of high precision temperature and humidity in production workshop, improve fabric quality, enhance enterprise management level, reduce refrigerating machine running time and energy consumption, fan energy consumption, reduce equipment maintenance cost, prolong equipment life and reduce production cost.

Based on the existing textile air-conditioners equipped with frequency converters, energy saving and consumption reduction can reach about 30%.

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< p > "intelligent monitoring system for ring spinning" is composed of single point monitoring indicator, ingot group indication, machine terminal display and central database terminal. It realizes on-line monitoring and indication of yarn breakage and spindle slipping in the production process of ring spinning machine, directs the terminal end of the yarn to break the head and slips of the spindle belt to the central database terminal in real time through field bus, and carries out a unified analysis of the data. Through some rule base, the yarn spindle can be judged and predicted by some rule base, so as to provide basis for user maintenance.

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Changzhou P will further increase R & D investment in the automatic weighing and distribution system of dyestuff powder, production process logistics management system, improve the product system, gradually form product industry standards, establish an intellectual property protection system, and lead China's printing and dyeing industry into a new era of digitalization.

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< p > < strong > Bu Gong tea saponin -- the large use of small auxiliaries < /strong > < /p >

< p > < strong > Shanghai Jintang light textile new Mstar Technology Ltd Zhang Zhijun < /strong > /p >

< p > core point of view: the application of Bu Gong tea saponin can not only produce good economic benefits, but also bring good social and environmental benefits.

Because of the decrease of energy consumption and water consumption, the contradiction between energy shortage can be alleviated. Due to the decrease of emission and pollution index and the improvement of sewage biodegradability, sewage is easier to handle. Compared with the conventional process, it is conducive to environmental protection.

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< p > June 2009, a new product which can replace alkali, auxiliaries and hydrogen peroxide for pretreatment of fabrics is successfully developed.

This product can be applied to the pretreatment processes such as < a href= "http://www.91se91.com/news/index_c.asp" > pure cotton, chemical fiber, blend, linen, flocking, batik, /a and so on, which can reduce the use of chemicals and alleviate the problem of heavy and heavy pollution in the pretreatment stage of dyeing and printing factories.

In the next 4 months, the product was approved and applied in the Shanghai dyed bridge, Shanghai Jing Sheng, Zhejiang China Textile Group and Yi Bena (Germany) factory. As of October 2013, the sales volume of the tea leaves was 873.86 tons, double the same period in 2012.

At present, more than 50 enterprises in the country, Indonesia, India, Singapore, Bangladesh and other countries 5 printing and dyeing factories are using the public tea saponin products.

In 2013, there were 25 new customers.

The use of Bu Gong tea saponin made the printing and dyeing factories reduce the cost, increase efficiency and save energy and reduce emissions.

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< p > < strong > by using the information of feedback from the dyed tea factory, the following information is obtained: < /strong > /p >

< p > Pugong tea saponin can be used in pure cotton woven fabrics, which can reduce the use of 20% steam. The process flow is shortened by 1/3, which can avoid the use of 1 steamboxes and 5 washing tanks. The fabric has little strength damage and no oxidation burrows.

Especially those low quality batik fabrics, the use of bugong tea saponin before processing can enhance the fabric's strength and avoid the danger of oxidation hole breaking, and the wool efficiency and whiteness can meet the printing requirements of wax printing cloth.

At the same time, a large reduction in the amount of chemicals is beneficial to the treatment of wastewater and the reduction of wastewater discharge, and it is easy to wash, and it can save multiple washing water and do not use deaeration process, which can save water and other energy sources.

The bleaching and bleaching of a single type of auxiliaries of Bu Gong tea saponin can effectively ensure that fabrics do not contain other harmful chemical elements such as APEO, which is conducive to the safe export of textiles.

The use of Bu Gong tea saponin can also reduce the COD concentration of wastewater by more than 30%, and the environmental protection benefits are very obvious.

At present, Fujian Lian Feng Sheng bleaching and dyeing flocking Co., Ltd., Nantong new Jinjiang printing and dyeing Co., Ltd., Zhejiang new Tianlong printing and dyeing Co., Ltd., Nantong Jin Shi Da printing and dyeing Co., Ltd., Zhejiang China Textile Group are all in use.

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< p > the main characteristic of Pugong tea saponin used in chemical fiber woven fabric is to replace many auxiliaries used in the traditional process of the original chemical fiber woven fabric. A dosage form is used to finish the pretreatment of the woven fabric, not only the high desizing rate, brighten the fabric's background color, but also remove the mildew spots on the fabric, especially the polyester fabric's anti staining phenomenon, the dyeing and dyeing rate is high, and the operator is easy to operate and safe.

The main application customers are Fujian long Xing long printing and dyeing Co., Ltd., Fujian Wan Xing long printing and dyeing Co., Ltd., Huzhou Chengxin Textile Co., Ltd., Nantong Chang Lin Textile Co., Ltd., Changxin Hongfeng textile printing and dyeing Co., Ltd., and the market feedback is good.

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< p > the use of Pugong tea saponin before pretreatment of knitted fabric is the biggest bright spot that can reduce the weightlessness rate of fabrics. Not only can the semi-finished products achieve the requirements of fabric dyeing before, but also the handle is soft and fluffy, which can save the use of softeners and anti cavity agents in the latter process.

At the same time, as a result of the use of a form of saponin, it is unnecessary to add any chemicals such as caustic soda, soda ash, hydrogen peroxide, osmotic agent and so on. Therefore, there will not be any quality accidents due to omission or forget of additives. It can improve the success rate of color matching and reduce defective products.

Bu Gong tea saponin can effectively replace all kinds of auxiliaries used in the traditional refining and bleaching process. It is not necessary to add caustic soda, hydrogen peroxide and other chemical auxiliaries when using ordinary fabrics. Special fabrics can be used with a small amount of hydrogen peroxide to achieve better whiteness and wool effect, and meet the requirements of the fabric.

It is suitable for one-time pretreatment of cotton, polyester and blended fabrics for refining, degending, removing impurities and bleaching. The strength damage and weightlessness rate of fabrics are lower than those of traditional traditional technology, and the use is simple and safe.

It not only reduces waste water discharge and reduces COD concentration, but also reduces labor intensity and improves product quality while saving water, saving electricity and saving steam.

At present, Zhangjiagang Chun Ma Textile Co., Ltd., Fujian Longsheng Knitting Co., Ltd., Zhejiang Shangyu Jinchen printing and dyeing Co., Shanghai Jing Sheng printing and dyeing Co., Ltd., Nantong Sanqi Textile Co., Ltd. are all in use.

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