The Government Is Determined To Increase Energy Efficiency &Nbsp; Printing And Dyeing Machinery Technology Will Not Be Able To Go.

The government eliminated backward confidence.

Recently, the "integration of two technologies for energy saving and emission reduction experience exchange" organized by the Ministry of industry and information technology was held in Beijing and announced the first batch of two pilot projects to promote energy saving and emission reduction. A total of 60 enterprises were listed. Changzhou Hongda Electric Co., Ltd., Wuxi first cotton mill, Hangzhou open source computer technology Co., Ltd., Tianjin Tien investment Limited by Share Ltd, Zhejiang Mei Xinda printing and dyeing Limited by Share Ltd, Zhejiang Huili printing and dyeing finishing Co., China Textile energy saving network and other 7 textile enterprises ranked among them.

Recalling the announcement of the 2010 printing and dyeing elimination of backward production capacity list by the Ministry of industry and commerce, it clearly shows the firm determination of the government in improving the efficiency of energy use.

According to the Ministry of industry and information, the 201 enterprises in the printing and dyeing industry need to eliminate the backward production capacity by printing and dyeing cloth to reach about 3 billion 810 million meters.

Relevant data show that in the first half of this year, the output of printing and dyeing cloth in the whole country was 20 billion ~300 billion meters, and the annual output of printed and dyed fabrics was 60 billion ~700 billion meters.

With this calculation, the backward production capacity of printing and dyeing accounts for about 6% of the actual demand for printing and dyeing cloth in the whole country.

Judging from past rules, some market analysts believe that the adjustment is more refined, and the elimination policy will be implemented directly to enterprises. On the one hand, it is more conducive to the implementation and supervision of policies. On the other hand, it can also take into consideration the specific circumstances of enterprises and avoid "one size fits all".

Under this process, for those advanced technologies,

Timely adjustment is an inevitable choice for enterprises.

It is understood that air dyeing machine uses air as the only medium to drive fabric operation, without other devices to assist. Water is only used for dyeing, so it can be dyed at low bath ratio.

For example, the cotton fiber bath ratio is about 1: 4, and the chemical fiber is about 1: 2~1: 3 atomizing dye solution, so that the dye solution does not need to be directly sprayed on the fabric, so that the strong water can accelerate the dye penetration into the fabric fibers while spraying the fabric.

Because the bath ratio is low, the consumption of auxiliaries, salt and alkali is greatly reduced.

The special washing system (VPR), which can wash and arrange at the same time, provides 180 litres of fresh water for washing every minute. The washing efficiency is high, the water consumption is reduced, and the water consumption of traditional dyeing machines is reduced by 50%.

Because of less water, the time of water intake, drainage, heating and cooling is reduced, and the whole dyeing process is shortened correspondingly.

Because the overall time is shortened, the power consumption is lower than that of the traditional flow dyeing machine.

New technology is still needed to update equipment.

Three yuan Holding Group subsidiary company Hua Lun printing and dyeing,

For example, Jimei and Tiancheng imported waste heat recovery equipment of Japanese stereotype machine can save about 15%~25% fuel and substantially reduce CO2 emissions.

At the same time, all the hot oil boilers in the head office have installed 9 sets of waste heat utilization devices, with a total price of 3 million 500 thousand yuan. Each set can save 6 tons of steam / hour and save 140 yuan per ton of steam.

Advanced equipment such as "Japan KYOTO liquid ammonia finishing" and "Airo air softening machine" are introduced.

Reduce the use of alkali, water, auxiliaries and softeners.

The projects mentioned above are all put into operation at present, and the effect of energy saving and emission reduction is obvious.

Numbers tell us everything.

The three yuan holding group only eliminated one of the old pformers, and the annual electricity consumption reached 20 thousand kilowatts.

It is possible to save 13000 tons of standard coal annually by eliminating heat conduction oil stove, recovering waste heat of flue gas and waste heat.

At the same time, three yuan holding has actively researched and promoted the new technology of energy saving and emission reduction. The cold pad batch pre-treatment technology, cold pad dyeing technology, short flow wet evaporation dyeing technology, and automatic liquid distribution system and digital printing technology used in cotton and ramie products have significantly reduced the energy consumption and water consumption of products.

It is easy to see from the automatic control principle of the moisture regain of Jimei printing and dyeing of three yuan holding group company that good equipment and technology bring great changes to production.

The control of moisture regain during the dyeing and finishing process can be achieved by controlling the drying temperature. For steam drying equipment, the control of the drying temperature is achieved by controlling the steam supply.

Therefore, controlling the steam supply of the drying cylinder is to control the moisture regain of the cloth.

The control of moisture regain during dyeing and finishing is related to three important indexes: product quality, production efficiency and energy consumption cost, among which reducing energy consumption cost is mainly aimed at avoiding drying.

Their practice shows that the control of moisture regain in automatic drying process can produce higher economic benefits than the moisture regain of hand test. First, relying on equipment to make data operation and automation of production operation, workers' ability to control production quality indicators can be programmed and standardized accordingly, otherwise there will be no accurate evaluation standard.

Second, the achievement of programming and standardization is to avoid waste, guarantee quality and improve production efficiency.

Therefore, the control of moisture regain is very important.

On the one hand, excessive baking will inevitably result in waste of energy.

On the other hand, the moisture regain of fibers is one of the main physical characteristics that affect the success or failure of the process.

Changing the moisture regain can greatly change the processing characteristics of fibers, such as singeing, mercerizing, dyeing, fixing, pre shrinking, calendering, raising and setting. The rationality and uniformity of moisture regain data play a decisive role in quality stability.

A number of small and medium-sized printing and dyeing enterprises have basically lost their production capacity after the elimination of backward indicators. They have to stop production and go bankrupt. Some enterprises can rely on advanced equipment and relatively stable market efficiency to extend their production capacity and gain more room for development. However, in any case, the survival and development of printing and dyeing enterprises that survive and develop healthily in the big elimination must be constantly adjusted in the way of thinking and constantly improved in the production process, so as to adapt to the continuous development of market demand.