The position of fundamental the sources of energy that the resource gift of our country rich coal, lean oil, little energy of life decided coal. Our country the sources of energy consumed gross to amount to coal of 4.36 billion tons of mark 2016, among them coal consumption is occupied than 62% . What pollute a problem as the environment is increasingly austere, promotion coal cleanness is efficient use technical extremely urgent.
“Water coal oar is one kind accords with the clean the sources of energy of structure of our country the sources of energy to use a technology. ” on the current situation of technology of coal cleanness combustion that held a few days ago and development informal discussion, chinese coal division is versed in Wang Jinhua shows group president, “As home the large-scale industrialization of technology of aerification of oar of coal of water of own intellectual property is advanced, industry of water coal oar greets high speed to send exhibition period, the dosage that predicts the aerification before 2020 uses water coal starch will break through 200 million tons. The dosage that predicts the aerification before 2020 uses water coal starch will break through 200 million tons..
“Water coal oar is efficient and clean the technology is coal cleanness efficient a kind of when use a technology efficient way. ” Li Falin of director of research center of technology of project of oar of coal of water of nation of coal division courtyard expresses, “After 2010, large coal chemical industry and technology of aerification of water coal oar develop quickly, water coal oar is transformed to raw material attribute by fuel gradually, our country already made technology of water coal oar banner, produce the country with the biggest dosage. Our country already made technology of water coal oar banner, produce the country with the biggest dosage..
In the meantime, the expert also expresses, cleanness of water coal oar is efficient technical equipment reliable, technology is mature, need to emphasize hair power in 4 big fields.
The 3rd acting technology solves difficult problem of coal chemical industry
Water coal oar is by the water of the coal of 65%-70% , 30%-35% and the additive of 1% , through what certain treatment technology makes fuel of coal radical fluid turns raw material compatibly, its use a way to basically combustion exothermic, aerification synthesizes coal industrial chemicals two kinds.
Incorporate combustion technology, aerification technology inside, efficient and clean technology still includes water coal oar technology of preparation of water coal oar. And, technology of preparation of water coal oar is right burn follow-uply or aerification has immediate effect.
As we have learned, coal the 3 big factors that grading of granuality of qualitative, coal fines, additive is preparation of oar of influence water coal. To improve the combustion efficiency of coal, coal bead should be achieved certain and fineness. According to introducing, technology of preparation of water coal oar is in the 3rd generation to make oar technology level at present, namely bead accuses grading oar craft. This technology that make a starch can control coal bead size and scale strictly, basically use at aerification of water coal oar, be in by research center of technology of project of oar of coal of water of nation of coal division courtyard the 2nd acting technology that make a starch classifications undertake equipment and craft upgrade to improve and come on the foundation of abrade craft, its make oar chroma can be as high as 70% , coal oar chroma makes an appointment with 6-8 than rising on foundation of former rod mill percent.
As we have learned, water coal oar includes through what arise after aerification technology carbon monoxide and hydric inside synthesis is angry, it is the important raw material that produces the item of coal chemical industry such as methanol.
“Coal aerification is the gas head of coal chemical industry, coal oar chroma and relationship of coal aerification efficiency are close, every increase concentration a percent, apparent to the effect of aerification. ” Li Falin says, “The 3rd generation made oar technology solve industry of coal chemical industry to need to raise question of coal oar pH indicator considerably, enterprise of the chemical industry that it is coal enrages chemical art course in coal new space was extended on the choice. Enterprise of the chemical industry that it is coal enrages chemical art course in coal new space was extended on the choice..
According to not complete count, up to by 2016, dosage of oar of coal of water of our country fuel already broke through 30 million tons / year, domain of chemical industry of coal of; of combustion of the acting coal that basically is used at industrial boiler, acting oil, acting gas, furnace of aerification of water coal oar amounts to more than 300 to cover, the dosage of oar of aerification water coal achieves 120 million tons of above.
Economy of energy-saving environmental protection is strong
It is reported, in recent years, cleanness of water coal oar is efficient combustion technology is included national policy to encourage popularize kind of technology, compare with the other fuel photograph such as heavy oil, raw coal, combustion of water coal oar is had better economy, energy-saving with environmental protection character.
As we have learned, bureau of national energy resources releases ” coal cleanness is efficient use the action to plan (2015-2020) ” in mention flaming of low nitrogen of positive development and promotion 5 times technology of water coal oar, the dominant position of combustion of low nitrogen oxide that affirmed technology of water coal oar clearly. Preparation of water coal oar and applied unifinication technology are developed by the Chinese energy-saving key of rank country formulate the project of clean coal technology in the technology. Ministry of bureau of national energy resources, environmental protection, labour believes a 3 ministries and commissions to be released jointly ” development of green of stimulative coal safety and cleanness are efficient the opinion that use ” put forward clearly ” advance actively advanced model coal and technology of water coal oar ” , include water coal oar again encourage popularize kind of technology.
Economy respect, device of existing coal chemical industry also can combine existing rod mill to make an oar undertake transforming. With 600 thousand tons / year methanol project is exemple, in the quantity that cast coal changeless circumstance falls, coal oar chroma from 60% carry to 68% , can synthesize gas effectively prolifically 10500 standards stere, increase production methanol 5.05 tons / hour, economic oxygen 5249 standards stere / hour. Press ton of methanol price 1800 yuan of computation, can increase income every year 72.72 million yuan, wait considering economic oxygen again, year economic benefits is in 100 million yuan of above, and transform investment to need many yuan 3000 only.
In water coal oar of utility boiler transform respect of as specific as application example, according to introducing, fosan Nanhai generates electricity one factory 670 tons / when special boiler is oar of large water coal the boiler of the biggest oar of the complete coal that heat water on the world, after building go into operation 2005, through successive safety of a year stability moves, oar of combustion water coal replaced oil of many tons of 30 fuel, according to business accounting, it is 0.55 yuan for cost per kilowatt hour of the electricity generated by WECS of fuel of fuel power supply with water coal oar, with fuel oily cost per kilowatt hour of the electricity generated by WECS exceeds 0.831 yuan.
4 big trends are how-to develop way
Current, the application of oar of coal of our country water presents south and coastal city to be given priority to with oar of fuel water coal, north and the characteristic that basically produce coal division to be given priority to with oar of aerification water coal.
“Water coal oar expands of promotion application domain increasingly and the ceaseless innovation of technology of water coal oar, the good progress of industry of oar of the coal that it is water offerred powerful technology to prop up. Henceforth, technology of efficient and clean combustion has water coal thick liquid trend of 4 great progress, it is danger waste material technology of processing and combustion of water coal oar combines, 2 it is to widen make an oar use coal range, 3 be oar of aerification water coal to raise chroma direction development, 4 it is to develop conduit of Sunday run of water coal oar to carry a technology. ” Li Falin says.
As we have learned, through abandoning danger processing and photograph of technology of combustion of water coal oar are united in wedlock, use danger to abandon preparation to give water coal oar, burn inside boiler of water coal oar, can handle danger to abandon already, still can use danger to abandon generation quantity of heat, become useless to be treasure.
From the point of the long-term development of industry of water coal oar, li Falin thinks, make oar raw material answer base oneself upon wait at the long blaze coal with low price, weak sticky coal, not sticky coal, lignite low rank coal and the high-ranking coal such as anthracitic, meager coal, deficient coal or wait for all sorts of solid litter like slime of mud of municipal sludge, industry, floatation, can improve the economy of water coal oar not only, also accord with a country reasonable the policy that uses coal and trash resource.
Data shows, current, dosage of oar of coal of water of our country aerification amounts to 120 million tons / year, and the rapid progress that makes oily, coal control the industry of large coal chemical industry such as alkene as coal, dosage of aerification coal oar maintains high speed to rise situation. Aerification of water coal oar uses the soft coal of low degenerative rate to be raw material more, the chroma that become a thick liquid is general under 60% , overmuch moisture entered aerification furnace to waste a large number of quantity of heat, bring about on the high side of bad news of coal aerification coal consumption, oxygen, enrage composition on the low side effectively.
“Because this develops the oar of aerification water coal of new generation to promote great technology, increase coal oar concentration considerably, it is industry of stimulative coal chemical industry energy-saving fall the inevitable requirement of bad news. In addition, carry a technology to be able to carry water coal oar district of garden of coal chemical industry through conduit directly through developing conduit of Sunday run of water coal oar, raise efficiency of aerification of coal chemical industry and managing coal to carry cost thereby. ” Li Falin expresses.