Change development as dimensions of wind cable industry, the industry is accelerated upgrade and updating equipment replacement, the equipment of new energy resources that is a delegate with fan lamina is faced with batch to retire problem, retire at present fan lamina is encountering a knock off art complex, reclaim the difficult position with not high value.
Current, the fan lamina crust of domestic mainstream is main material enhances colophony composite material for fibre glass, and blade carbon bridge uses the carbon fiber with higher intensity to enhance colophony composite material. Because this kind of material has light qualitative excel in, function to be able to be designed, not dissolve not the high grade character such as frit, by industry coronal with the renown date of ” of “ final data.
Recently, classics of experience of group of of Hou Xianglin of researcher of institute of chemistry of coal of Shanxi of the Chinese Academy of Sciences, Deng Tian counts year of with great concentration to consider, mastered “ to tear open lamina of solution ” fan the technology that main material pledges —— carbon fiber enhances composite material of colophony of hot solid sex (directional degradation and resource change colophony of hot solid sex use a technology) , make ” of “ final data becomes useless to be treasure, realized fan lamina solid to abandon circular recycle, fill neat the last link that low carbon of green of catenary of wind cable industry develops circularly.
It is difficult that new thinking solves colophony of hot solid sex to reclaim
According to " equipment of bend over of light produced by electricity of 2022 China wind uses an industry to develop a report circularly " , to “ 945 ” end, china will greet the first batch large-scale retire group of wind electric machinery, the dimensions of electric field of old old wind that when moving at the appointed time, grows more than 20 years will exceed 1.2 million kilowatt.
To 2030, our country will have group of electric machinery of more than 30 thousand typhoon to be faced with change new, to 2035 this one word will exceed 90 thousand. In June 2023, print and distribute of bureau of national energy resources " wind electric field is transformed upgrade and retire administrative measure " , encourage and the wind electric field that the net moves more than 15 years or capacity of only station set is less than 1.5 million to cover with tiles undertakes transforming, replacement demand exceeds 18 million kilowatt, market dimensions anticipates amount to 63 billion yuan. So huge amount, the solid of generation is useless in accumulate contained fiber enhances composite material dimensions breathtaking. Reasonable deal with these composite material extremely urgent.
“ retires as fan ‘ the drawing near of wet ’ , large-scale reclaim the process of the composite material in wind report lamina should be accelerated. ” Hou Xianglin expresses.
Introduce according to group member Zhang Ning, This technology can realize resinous below gentler condition directional degradation, child can accuse, the product is add the cost is higher, it is current in the light of hot solid sex composite material has colophony radical most a debit law of foreground.
The ‘ that “ is a target with child of young member degradation unlike the tradition gives priority to ’ to reclaim with defeating train of thought, we study the group puts forwardRecuperative heat of the alternative degradation that break key originallies sexual resinous new thinking, use match not saturated or match infirmly metallic ion ruptures optionally colophony chemical bond, realized colophony of hot solid sex base the efficient degradation of composite material and full class status reclaim.
In addition, we also are undertaking the technology upgrades ceaselessly, make degradation of resinous of hot solid sex reclaims technology more economy, green, efficient. ” Zhang Ning says.
“ flotsam ” changes ” of “ raw material reclaims value is high
Zhang Ning introduces, the technical innovation with this the oldest technique depends on opening the chemical bond in the epoxy resin in composite material optionally, utmost ground preserves the ordered structure in colophony, get reclaiming the production of high additional cost such as fiber and annulus oxygen bitumen.
“ studies from the lab data index looks, rate of epoxy resin degradation is more than 99% , reclaim rate be more than 95% , carbon fiber reclaims rate be more than 96% , fiber intensity loss is less than 5% , quantity of index of reclaiming intensity of carbon fiber monofilament, model and former silk differ very few, with the tradition machinery smashs and photograph of hot solution method is compared, have clear technical advantage. ” Zhang Ning says.
It is reported, hou Xianglin studies the group uses directional depolymerization method (chemical depolymerization law) processing composite material, adopt specific dissolvent and activator system, be in high polymer below gentler condition bolt the ” that tear open solution opens a “ specificly, form growing catenary is thermoplastic high polymer or colophony synthesizes monomer. This one method also is academia good by what general approbatory achieves circular economy method.
To promotion of research and development, hou Xianglin confidence is dye-in-the-wood: “ is current, the State Council, country develops innovation appoint, the branch such as zoology environment ministry is driving wind phone equipment actively to reclaim the development of the relevant industry such as recycle and technology. We the attention that this technology also got wind report creates orgnaization and the department such as association of industry of composite material of enterprise and association of second birth of Chinese goods and materials, China. Reclaiming colophony child can make annulus oxygen pitch, go further processing can get the high price such as double phenolic A is worth chemical, anticipate economic benefits is very considerable. ”
Hou Xianglin expresses: “ is in the chemical depolymerization respect of fan lamina, we had finished a lab small try and of 50 litres of dimensions in try enlarge, cooperating with the enterprise at present, plan to undertake demonstrative line of kiloton class industry is built. We have confidence to realize lab result and actual production finally the butt joint, extraction gives the chemical with valuable more, innovation gives bigger economic benefits and social value. ”
Equipment of scene of association of second birth of Chinese goods and materials is used circularly only appoint conference chairman Cheng Gang is neat express, can last of wind cable industry development depends on establishment of perfect form a complete set and complete lifecycle competition ability, reclaiming among them is crucial one annulus. If can reclaim effectively,use retire the material in wind phone equipment, will promote our country raw material self-sufficient rate greatly, those who reduce pair of upper reaches resource depend on, be helpful for alleviating insecurity of raw material supply and demand is contradictory, reduce the carbolic discharge capacity that produces link generation effectively at the same time.
“ this year home the first but lamina of colophony of sex of recuperative heat solid gets offline successfully already, arrived to use fixed number of year to be able to reclaim not only degradation, and composite material reclaims rate achieved 97% . Will retire these core large parts of fan, change through ability safeguard again reductive to course of study of one's own profession, after implementation fan lamina retires efficient reclaim use, will be the only way that wind cable industry can retain flourishing. ” Cheng Gang says together.