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Cement to energy saving and environmental protection industry in China
Source: | Author:ykjdqsn | Publish time: 2016-03-22 | 638 Views | Share:
Since 1824 the British Joseph aspdin since the invention of cement, in 188 years, cement-based materials have made great contributions to human civilization and development. For a long period in the future, cement will continue to be the main building material of human society, and is closely related to human social and economic development. When new China was founded in 1949, China's cement production was only 660,000 tons, until 1978 when the reform and opening up cement production 65.24 million tons. Since reform and opening up, with the scale of economy, China's cement industry has developed rapidly. Entering the new century, 2000 cement production reached 597 million tons. After more than 60 years of development and construction of cement industry in China, has made remarkable achievements by 2011 cement production reached 2.09 billion tons, cement production since 1985 for 27 consecutive years ranked first in the world, become a cement producer in the world, cement production accounts for more than half the world.
First, scientific and technological innovation lead healthy development of cement industry
In 2000, China's cement output of nearly 600 million tons, but the industry still is kiln-oriented small business and average size of 100,000 tons, only for the world's advanced level of one-sixth to one-tenth; representative of advanced productive forces development direction of cement industry new dry-process cement production to 90 million tons, accounted for only 14.1%, compared with 90% the level of developed countries, a far cry. Use a wet-behind rotary kiln and shaft kiln cement accounted for 85.9%. All in a cement kiln, Nissan's more than 700 tons of precalcining new dry-process cement production line with 80, with a total production capacity of 40 million tons, representing the international advanced level of more than 4000 t/d new dry process production line only 8, 6 of which are foreign-funded enterprises, and production capacity of 10.4 million tons. Other backward small dry kiln and high energy consumption of wet process rotary kiln's total production capacity of more than 60 million tons. 44,000 tons/year following little kiln and more than more than 4,400 production lines. The rest of the world has only 200 sets of kiln, and we also have 7883. 4000 t/d new dry-process cement technology and equipment mainly rely on imports, structural adjustment and industrial upgrading, lack of technology, lack of capital, lack of policy assurance. Before 2000, the construction of a 2000 t/d clinker production line at about 700 million yuan of investment, meeting at around 10 million dollars for imported equipment; construction of a daily output of 4000 tons of cement clinker line at about 1.6 billion yuan of investment, meeting at around us $ 30 million for imported equipment. When using domestic technologies and equipment only able to build scale of 1000 t/d clinker production line, needs about 300 million yuan of investment. In order to adjust the structure of cement and promote the upgrading of the cement industry to develop large-scale precalcining cement became the main task. Development of new type dry-process cement without dealing with "low investment, domestic, pressure", and so on, complete the cement restructuring goal cannot be smoothly achieved. Construction of 2000 t/d new dry-process cement production lines, all losses, less confidence in the new type dry-process cement production line of enterprise development, once there were "wet and dry" debate, new dry-process cement industry development very difficult.
Digestion and absorption through scientific and technological research and innovation, producing 4000 tons in China, 5000 tons, 10000 tonnes of cement equipment all localization, and reached the international advanced level. Equipment not only revolutionized our cement technology and equipment import-dependent situation, achieve self-sufficiency, but also exported to many countries around the world, and with good quality of products and services to enter the European and American markets. International market share of China cement equipment accounted for about 35%. Global Nissan million t/a cement production line has 16, while China occupies 9. Cement technology and equipment, and provide support for scientific development of cement industry.
Second, macro-control guide structural adjustment of cement industry
In 2002, 16 Congress of the party, put forward the scientific concept of development and the Grand goal of building a well-off society. With the accelerated process of industrialization and urbanization in China, cement consumption will continue to maintain a high level of the cement industry will enter a new period of development. In the new period must solve the problems existing in the development of the cement industry.
Main problems existing in China's cement industry: one is the overall extensive pattern of development, do not meet the requirements of the new industrialization, resource and energy consumption, serious pollution, increasing the pressure of the ecological and environmental; second, structural contradictions behind vertical kiln cement will take a larger share, production quantity, low industrial concentration. To solve these problems, leaders of the State Council has instructed: "cement production, but too many small cement, a structural adjustment problems. We agreed to build a large cement plant in some places, but at the same time to switch off a number of small cement plants, you have 10 million tonnes of cement, must be eliminated dozens of small cement; "" pay close attention to the development of cement industry development policy, strengthening the planning, in order to achieve macro-guidance and control of the cement industry ". For implementation State of led instructions, I Board to developed cement industrial development special planning and cement industrial industry development policy, determine China cement industrial development of main task is implement implementation science development views and go new industrialization road principles, speed up structure adjustment, Shang big pressure small, eliminated behind, strengthening and improved investment management, established enterprise self constraints mechanism, perfect conducive to development of market environment, further strengthening and improved macro-control, avoid investment blind expansion, promote cement industrial health development.
Cement industry in accordance with the party's "top 16" determined to take a new road to industrialization requirements, control the amount of reasonable size, according to the plan and industrial policy principles, change the mode of development, and ultimately achieve the goal of industrial upgrading. When the cement demand, only the construction as soon as Nissan more than 4000 tons of new dry-process cement, can inhibit the redundant construction of cement. Only the market price approach, with high quality and low price of cement squeeze on small cement market space, small cement can really quit the stage of history. If it is not built, little cannot be eliminated, and can only lead to more and more unreasonable. According to the cement industry development plan, to accelerate their restructuring, strengthen macro guidance, support the development of large enterprise groups, insist on technological progress and sustainable development policy, improve concentration and the competitiveness of enterprises, encourage daily output of 4000 tons and above large project construction, prohibit the construction of any kind of backward production process. Market way backward, taking the road of coordinated development of the environment, benefits, and guide the orderly development of the cement industry.
In 2003, the cement industry has excess capacity. Circular of the issued has development reform Board, sector on stop steel electrolytic aluminum cement industry blind investment several views of notification (State sent (2003) 103th,), and national development reform Board on steel electrolytic aluminum cement industry project cleanup about views of notification (sent modified industrial (2004) 1791th,), on cement industry development proposed has differences of of development approach, take has has keep pressure of measures, clear support speed up development new dry method cement, Key support resources where construction Nissan has more than 4000 tons size base of new dry process clinker project to encourage local governments and enterprises to eliminate backward productive capacity development of new dry-process cement. According to actual development of the cement industry in the region, development of accelerating the Elimination of the existing kiln and other backward technology concrete targets and timetables, and strictly prohibits the construction and expansion of vertical kiln, dry hollow kiln, lepol kiln and wet process kiln cement project. In 2004, the State Council issued the decision of investment system reform, clear cement unless prohibited by the State project, approved by the provincial investment authorities. In October 2006, the State Council also approved the policy on development of cement industry (national development and Reform Commission 50th order), the special plan for the development of the cement industry (the change of industry (2006), No. 2222) two documents plays a guiding role in the development of the cement industry, which provides new opportunities for the development of the cement industry.
Since 1824 the British Joseph aspdin since the invention of cement, in 188 years, cement-based materials have made great contributions to human civilization and development. For a long period in the future, cement will continue to be the main building material of human society, and is closely related to human social and economic development. When new China was founded in 1949, China's cement production was only 660,000 tons, until 1978 when the reform and opening up cement production 65.24 million tons. Since reform and opening up, with the scale of economy, China's cement industry has developed rapidly. Entering the new century, 2000 cement production reached 597 million tons. After more than 60 years of development and construction of cement industry in China, has made remarkable achievements by 2011 cement production reached 2.09 billion tons, cement production since 1985 for 27 consecutive years ranked first in the world, become a cement producer in the world, cement production accounts for more than half the world.
First, scientific and technological innovation lead healthy development of cement industry
In 2000, China's cement output of nearly 600 million tons, but the industry still is kiln-oriented small business and average size of 100,000 tons, only for the world's advanced level of one-sixth to one-tenth; representative of advanced productive forces development direction of cement industry new dry-process cement production to 90 million tons, accounted for only 14.1%, compared with 90% the level of developed countries, a far cry. Use a wet-behind rotary kiln and shaft kiln cement accounted for 85.9%. All in a cement kiln, Nissan's more than 700 tons of precalcining new dry-process cement production line with 80, with a total production capacity of 40 million tons, representing the international advanced level of more than 4000 t/d new dry process production line only 8, 6 of which are foreign-funded enterprises, and production capacity of 10.4 million tons. Other backward small dry kiln and high energy consumption of wet process rotary kiln's total production capacity of more than 60 million tons. 44,000 tons/year following little kiln and more than more than 4,400 production lines. The rest of the world has only 200 sets of kiln, and we also have 7883. 4000 t/d new dry-process cement technology and equipment mainly rely on imports, structural adjustment and industrial upgrading, lack of technology, lack of capital, lack of policy assurance. Before 2000, the construction of a 2000 t/d clinker production line at about 700 million yuan of investment, meeting at around 10 million dollars for imported equipment; construction of a daily output of 4000 tons of cement clinker line at about 1.6 billion yuan of investment, meeting at around us $ 30 million for imported equipment. When using domestic technologies and equipment only able to build scale of 1000 t/d clinker production line, needs about 300 million yuan of investment. In order to adjust the structure of cement and promote the upgrading of the cement industry to develop large-scale precalcining cement became the main task. Development of new type dry-process cement without dealing with "low investment, domestic, pressure", and so on, complete the cement restructuring goal cannot be smoothly achieved. Construction of 2000 t/d new dry-process cement production lines, all losses, less confidence in the new type dry-process cement production line of enterprise development, once there were "wet and dry" debate, new dry-process cement industry development very difficult.
Digestion and absorption through scientific and technological research and innovation, producing 4000 tons in China, 5000 tons, 10000 tonnes of cement equipment all localization, and reached the international advanced level. Equipment not only revolutionized our cement technology and equipment import-dependent situation, achieve self-sufficiency, but also exported to many countries around the world, and with good quality of products and services to enter the European and American markets. International market share of China cement equipment accounted for about 35%. Global Nissan million t/a cement production line has 16, while China occupies 9. Cement technology and equipment, and provide support for scientific development of cement industry.
Second, macro-control guide structural adjustment of cement industry
In 2002, 16 Congress of the party, put forward the scientific concept of development and the Grand goal of building a well-off society. With the accelerated process of industrialization and urbanization in China, cement consumption will continue to maintain a high level of the cement industry will enter a new period of development. In the new period must solve the problems existing in the development of the cement industry.
Main problems existing in China's cement industry: one is the overall extensive pattern of development, do not meet the requirements of the new industrialization, resource and energy consumption, serious pollution, increasing the pressure of the ecological and environmental; second, structural contradictions behind vertical kiln cement will take a larger share, production quantity, low industrial concentration. To solve these problems, leaders of the State Council has instructed: "cement production, but too many small cement, a structural adjustment problems. We agreed to build a large cement plant in some places, but at the same time to switch off a number of small cement plants, you have 10 million tonnes of cement, must be eliminated dozens of small cement; "" pay close attention to the development of cement industry development policy, strengthening the planning, in order to achieve macro-guidance and control of the cement industry ". For implementation State of led instructions, I Board to developed cement industrial development special planning and cement industrial industry development policy, determine China cement industrial development of main task is implement implementation science development views and go new industrialization road principles, speed up structure adjustment, Shang big pressure small, eliminated behind, strengthening and improved investment management, established enterprise self constraints mechanism, perfect conducive to development of market environment, further strengthening and improved macro-control, avoid investment blind expansion, promote cement industrial health development.
Cement industry in accordance with the party's "top 16" determined to take a new road to industrialization requirements, control the amount of reasonable size, according to the plan and industrial policy principles, change the mode of development, and ultimately achieve the goal of industrial upgrading. When the cement demand, only the construction as soon as Nissan more than 4000 tons of new dry-process cement, can inhibit the redundant construction of cement. Only the market price approach, with high quality and low price of cement squeeze on small cement market space, small cement can really quit the stage of history. If it is not built, little cannot be eliminated, and can only lead to more and more unreasonable. According to the cement industry development plan, to accelerate their restructuring, strengthen macro guidance, support the development of large enterprise groups, insist on technological progress and sustainable development policy, improve concentration and the competitiveness of enterprises, encourage daily output of 4000 tons and above large project construction, prohibit the construction of any kind of backward production process. Market way backward, taking the road of coordinated development of the environment, benefits, and guide the orderly development of the cement industry.
In 2003, the cement industry has excess capacity. Circular of the issued has development reform Board, sector on stop steel electrolytic aluminum cement industry blind investment several views of notification (State sent (2003) 103th,), and national development reform Board on steel electrolytic aluminum cement industry project cleanup about views of notification (sent modified industrial (2004) 1791th,), on cement industry development proposed has differences of of development approach, take has has keep pressure of measures, clear support speed up development new dry method cement, Key support resources where construction Nissan has more than 4000 tons size base of new dry process clinker project to encourage local governments and enterprises to eliminate backward productive capacity development of new dry-process cement. According to actual development of the cement industry in the region, development of accelerating the Elimination of the existing kiln and other backward technology concrete targets and timetables and strictly prohibits the construction and expansion of vertical kiln, dry hollow kiln, lepol kiln and wet
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