The relevant person of the National Development and Reform Commission's Department of Environmental Protection said on the 2nd in the "China-India Sustainable Development Core - Energy Conservation and Environmental Protection Industry Cooperation and Exchange Conference" that the Chinese government is taking concrete measures to guarantee the units proposed in the "Eleventh Five-Year Plan". The achievement of a 20% reduction in GDP energy consumption is achieved.
Greater structural adjustment was taken as the primary measure. Adjusting the structure is not only to adjust the industrial structure but also to adjust the energy structure. At present, the relevant departments strictly control the “two gates†of land and credit and the market entry threshold to control the excessive growth of high-energy-consuming industries, and at the same time eliminate backward production capacity, process equipment and technical equipment in high-energy-consuming industries.
Statistics show that in 2006, the copper, lead and zinc smelting industries eliminated backward production capacity of 1 million tons, 350,000 tons and 560,000 tons respectively through technological transformation. The backward self-baking production process and equipment technology of the electrolytic aluminum industry have been eliminated. Most of the high-energy wet kiln processes have been dismantled or discontinued. According to reports, in 2007, it plans to close 10 million kilowatts of small thermal power units, eliminate 30 million tons of backward ironmaking capacity, 35 million tons of backward steelmaking capacity, and replace 50 million tons of machine shaft kiln cement. Building materials production capacity. Further increase the elimination of backward production capacity in electrolytic aluminum, ferroalloy, coke, calcium carbide and other industries. In addition, strengthening the proportion of high-tech industries and improving the proportion of service industries and high-tech industries in the national economy is an important method for adjusting the industrial structure.
Advancing energy-saving technology advancement is an important starting point for achieving energy-saving goals. In the plan, we will organize the implementation of a number of energy-saving and consumption-reducing industry common, key technology development and industrialization demonstration projects; accelerate the construction of energy-saving and emission-reduction technology support platforms, set up a number of national engineering laboratories and national key laboratories; optimize energy-saving and emission reduction technologies Innovative and transforming policy environment, strengthening the construction of innovation teams and R&D bases in high-tech fields of resources and environment, promoting the establishment of energy-saving and emission-reduction technology innovation and achievement transformation system with enterprises as the main body, combining production, education and research; selecting a number of energy-saving potentials and applications A wide range of major energy-saving technologies have been promoted using a variety of measures. It is understood that at present, some large-scale energy-saving products, such as high-efficiency industrial boilers (kiln furnaces), high-efficiency motor systems, and high-efficiency lighting products, have been developed separately.
Energy-saving key projects have been put on an important agenda. Since 2006, relevant departments have launched ten key energy-saving projects in a comprehensive manner, focusing on supporting waste heat and pressure utilization, saving and replacing petroleum, motor system energy conservation, energy system optimization projects in key industries such as steel, nonferrous metals, petroleum and petrochemicals, chemicals and building materials, and Construction of coal-fired industrial boilers (kiln furnaces) and other projects will speed up the approval of cogeneration projects. According to the information, through the implementation of the ten key energy-saving projects, 240 million tons of standard coal can be saved during the 11th Five-Year Plan period. In terms of building energy conservation, 30 low-energy and green building demonstration projects will be organized this year to promote the heating measurement and energy-saving renovation of existing residential buildings in the northern heating area by 150 million square meters, and carry out large-scale public building energy-saving operation management and transformation demonstration. 200 renewable energy demonstration projects in large-scale application in construction.
Focus on key enterprises such as thousands of enterprises to save energy and reduce consumption. According to the survey, only the “Thousands of Enterprises Energy Conservation Action†with an annual energy consumption of more than 180,000 tons of standard coal can achieve energy saving of 20 million tons of standard coal per year. The reporter noted that the SASAC, the Development and Reform Commission and other departments are currently urging localities to strengthen the tracking and monitoring of key energy-consuming enterprises, especially the energy-saving work of thousands of enterprises under state supervision. Enterprises that fail to take measures as required shall be notified to the public and rectified within a time limit. Organize the implementation of energy-using equipment testing, and promote enterprises to increase structural adjustment and technological transformation, and improve energy-saving management. Organize and carry out benchmarking activities for key energy-consuming enterprises and advanced energy consumption levels in the same industry at home and abroad. Guide all localities to do a good job in energy conservation and consumption reduction for enterprises with an annual consumption of 5,000 tons of standard coal.
Greater structural adjustment was taken as the primary measure. Adjusting the structure is not only to adjust the industrial structure but also to adjust the energy structure. At present, the relevant departments strictly control the “two gates†of land and credit and the market entry threshold to control the excessive growth of high-energy-consuming industries, and at the same time eliminate backward production capacity, process equipment and technical equipment in high-energy-consuming industries.
Statistics show that in 2006, the copper, lead and zinc smelting industries eliminated backward production capacity of 1 million tons, 350,000 tons and 560,000 tons respectively through technological transformation. The backward self-baking production process and equipment technology of the electrolytic aluminum industry have been eliminated. Most of the high-energy wet kiln processes have been dismantled or discontinued. According to reports, in 2007, it plans to close 10 million kilowatts of small thermal power units, eliminate 30 million tons of backward ironmaking capacity, 35 million tons of backward steelmaking capacity, and replace 50 million tons of machine shaft kiln cement. Building materials production capacity. Further increase the elimination of backward production capacity in electrolytic aluminum, ferroalloy, coke, calcium carbide and other industries. In addition, strengthening the proportion of high-tech industries and improving the proportion of service industries and high-tech industries in the national economy is an important method for adjusting the industrial structure.
Advancing energy-saving technology advancement is an important starting point for achieving energy-saving goals. In the plan, we will organize the implementation of a number of energy-saving and consumption-reducing industry common, key technology development and industrialization demonstration projects; accelerate the construction of energy-saving and emission-reduction technology support platforms, set up a number of national engineering laboratories and national key laboratories; optimize energy-saving and emission reduction technologies Innovative and transforming policy environment, strengthening the construction of innovation teams and R&D bases in high-tech fields of resources and environment, promoting the establishment of energy-saving and emission-reduction technology innovation and achievement transformation system with enterprises as the main body, combining production, education and research; selecting a number of energy-saving potentials and applications A wide range of major energy-saving technologies have been promoted using a variety of measures. It is understood that at present, some large-scale energy-saving products, such as high-efficiency industrial boilers (kiln furnaces), high-efficiency motor systems, and high-efficiency lighting products, have been developed separately.
Energy-saving key projects have been put on an important agenda. Since 2006, relevant departments have launched ten key energy-saving projects in a comprehensive manner, focusing on supporting waste heat and pressure utilization, saving and replacing petroleum, motor system energy conservation, energy system optimization projects in key industries such as steel, nonferrous metals, petroleum and petrochemicals, chemicals and building materials, and Construction of coal-fired industrial boilers (kiln furnaces) and other projects will speed up the approval of cogeneration projects. According to the information, through the implementation of the ten key energy-saving projects, 240 million tons of standard coal can be saved during the 11th Five-Year Plan period. In terms of building energy conservation, 30 low-energy and green building demonstration projects will be organized this year to promote the heating measurement and energy-saving renovation of existing residential buildings in the northern heating area by 150 million square meters, and carry out large-scale public building energy-saving operation management and transformation demonstration. 200 renewable energy demonstration projects in large-scale application in construction.
Focus on key enterprises such as thousands of enterprises to save energy and reduce consumption. According to the survey, only the “Thousands of Enterprises Energy Conservation Action†with an annual energy consumption of more than 180,000 tons of standard coal can achieve energy saving of 20 million tons of standard coal per year. The reporter noted that the SASAC, the Development and Reform Commission and other departments are currently urging localities to strengthen the tracking and monitoring of key energy-consuming enterprises, especially the energy-saving work of thousands of enterprises under state supervision. Enterprises that fail to take measures as required shall be notified to the public and rectified within a time limit. Organize the implementation of energy-using equipment testing, and promote enterprises to increase structural adjustment and technological transformation, and improve energy-saving management. Organize and carry out benchmarking activities for key energy-consuming enterprises and advanced energy consumption levels in the same industry at home and abroad. Guide all localities to do a good job in energy conservation and consumption reduction for enterprises with an annual consumption of 5,000 tons of standard coal.
The silicon powder is used as a raw material, and the desired shape is first formed by a usual molding method, and preliminary nitriding is performed in a nitrogen gas at a high temperature of 1200 ° C, and a part of the silicon powder is reacted with nitrogen to form silicon nitride, and the entire billet is then formed. The body already has a certain strength. Then, a second nitriding is carried out in a high temperature furnace at 1350 ° C to 1450 ° C to form a silicon nitride. A silicon nitride having a theoretical density of 99% can be obtained by a hot press sintering method.
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