To promote the economical development of building materials industry energy saving and emission reduction

Date:2017-03-29
In terms of energy conservation and emissions reduction, building materials industry in China has huge potential.
 
One is the structure adjustment of energy conservation and emissions reduction potential. To speed up the pace of industrial restructuring, to replace backward production technology, advanced production technology to develop the new dry process cement process, to speed up the pace of wall materials innovation, is one of the important way of energy saving of the building materials industry.
 
With new dry process cement production technology to replace the backward production technology, such as jet unit clinker calcining heat consumption can be reduced about 25%. According to the new dry process cement ratio from 70% to 70%, then can save coal consumption around 16 million tonnes per year, about 41 million tons of CO2 emissions.
 
Wall materials industry, further increase the intensity of wall materials innovation work, speed up the development of new wall materials, gradually replace clay solid brick, if by the end of the 12th five-year, new wall materials proportion reached 65%, 7%, higher than that of 2010 is a year can save energy consumption 4.6 million tce, about 11.5 million tons of CO2 emissions. The second is the energy conservation and emissions reduction potential of technological progress.
 
Technological progress are the basis of saving energy and reducing consumption industry, building materials industry in our country there are still quite a proportion of backward production techniques and become one of the restricting factors of industry energy conservation development. The energy consumption level of building materials industry in China with the international advanced level there is a big gap, not only the energy consumption level between different scale enterprise is endless also and same.
 
Three is to improve the energy conservation and emissions reduction potential of product quality. The service life of buildings in our country is generally lower than the developed countries, from the aspects of building materials product quality analysis, as some backward technology production of building materials product quality problems directly affect the service life of the construction project. As per cubic meter in our country with the grade of the dosage of cement in concrete on average 20 ~ 30 kilograms of developed countries, as a whole increased the energy consumption of building materials industry. "Twelfth five-year" period, if, from the perspective of the engineering design, materials used, by extending the service life of buildings, reduce material waste, reduce the consumption of building materials products, will be able to reduce the building materials industry from overall energy consumption and carbon emissions.
 
Four is the comprehensive utilization of energy conservation and emissions reduction potential is more to be reckoned with. In this regard can not only save a lot of energy, and can be realized and the systemic circulation of the society, deal effectively with urban sludge and municipal waste. Fort north water, conch, the cement in the use of cement kiln synergy, city life garbage disposal of toxic and harmful waste and sewage treatment plant sludge and other kinds of waste material success.
 
In cement industry, for example, the cement is not only a less polluting the environment pollution of industry, but also an optimized environment industry; Not only the production of material products, at the same time, cities around the cement factory, become urban environment of the purifier. At home and abroad practice shows that using cement kiln for coordination and given city, living garbage and hazardous industrial waste sludge, and has high burning temperature, long residence time waste in stove, burning state stability, incineration disposal point, strong adaptability, no waste discharge, can cure most of the heavy metal ions in waste, heat recovery and resource utilization effect is good, can save energy by nearly 50%. Can be solved to a great extent, landfill, incineration and other way of investment, such as secondary pollution problem.
 
Developed countries in Europe and the collaborative disposal of municipal waste and sludge from cement kiln has mature technology and practice. Disposal of municipal waste and sludge from cement kiln in our country is in the stage of start and rapid development, currently in Beijing, Shanghai, guangzhou, chongqing and other cities of cement enterprise, such as north water, conch, the fort, huaxin, lafarge cement enterprises, has been in the cement kiln for coordination, poisonous and harmful waste, solid waste and sewage sludge living garbage has made beneficial exploration and achieved some results.
 
Even so, China's cement industry in terms of use of combustible waste, with Europe and the United States and other developed countries gap remains large. If the next few years in our country can be a breakthrough in this respect and actively promote, according to the secondary fuel substitution rate of 2% estimate, the whole industry can save coal consumption around 50.03 million tonnes per year, about 7.5 million tons of CO2 emissions.
 

TypeInfo: Company News

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