After more than 50 years of development, China's reclaimed rubber industry has reached world-class levels in terms of production scale, annual production and sales volume, production technology and technological equipment. Its technology, equipment and products have been exported to foreign countries and have a place in the international market.
Industry backbone enterprises gradually formed in the market competition
A reasonable production scale will produce reasonable economic benefits. The original Ministry of Chemical Industry thought that the annual output of 3000t was most reasonable when the remanufactured rubber enterprises were located in certain provinces and cities in the 1970s. However, most of the fixed-point enterprises in China passed technological transformation and production capacity. It has increased by 1 or 2 times. Only the member companies of the China Rubber Industry Association's reclaimed rubber branch have production capacity of more than 10,000 t/a, and there are 49 companies with more than 5,000 t/a, of which the largest one is Jingdong. Rubber Co., Ltd. and Nantong Back Rubber Group Co., Ltd. have a production capacity of more than 30,000 t/a and an annual output of more than 20,000 tons, making it the world's largest manufacturer of recycled rubber. The product structure becomes more rational. The reclaimed rubber industry through the "85" and "Ninth Five-Year" technological transformations has enabled the product structure to be effectively adjusted and new products have become new economic growth points. The varieties of reclaimed rubber have grown from the original 13 to nearly 30 varieties in the six series of tires, footwear, miscellaneous plastics, specialty products, specialty products and export products. The birth of finely reclaimed rubber has further improved the appearance quality of recycled rubber, and all the indicators have surpassed that of foreign countries with recycled rubber. The increase of reclaimed rubber varieties and the improvement of product quality, especially the promotion and application of activated rubber powder and fine rubber powder, can fully meet the needs of the development of China's rubber industry, and are exported to foreign countries.
The level of technical equipment has been significantly improved
The technological transformation of the recycled rubber industry in China, whether it is production capacity, or process technology and equipment, all rank first in the world, mainly in:
1. The new dynamic desulfurization process replaces the oil and water-oil process backward processes, fundamentally solves the problem of waste water pollution, thereby reducing energy consumption and improving product quality, so that the technological level of our country's recycled rubber production technology as a whole reaches the world's advanced level. Level.
2. Breakthrough development in the use of professional equipment for the recycling of used rubber. The successful development of radial tire crusher can completely replace imported equipment; the development of fine crusher has promoted the development of rubber powder industry in China; crushing equipment has developed in the direction of high speed ratio, low line speed and high shear rate, and improved crushing efficiency. The invention of dynamic desulfurization tanks promoted the development of China's reclaimed rubber industry.
3. In the 1990s, China successfully developed a turboexpanded refrigeration rubber crushing method that achieved world-class technology and was more advanced than liquid nitrogen refrigeration in foreign countries.
4. Beijing Panyang Company has successfully developed the latest technology for producing fine rubber powders at room temperature, and is at the leading position in the world.
5. Qingdao Green Leaf Company successfully developed LY liquid nitrogen freezing fine powder, which is much lower than foreign liquid nitrogen consumption and reached the international advanced level.
Manage "secondary pollution" and improve production environment
The recycling of used rubber is a business that remedies the pollution of waste rubber and harms the environment. It does not allow secondary pollution. In order to achieve a clean and civilized production, the reclaimed rubber industry promotes dynamic desulfurization, which completely solves the problem of waste water pollution from the production process.
Kunming University of Science and Technology has successfully developed a biological exhaust gas purification technology that can effectively purify and control waste organic rubber desulfurization and regeneration of low-concentration organic waste gas, which has been promoted in the whole industry. Since then, the recycled rubber industry has achieved no waste water, no exhaust gas, no pollution, and achieved clean production.
Industry backbone enterprises gradually formed in the market competition
A reasonable production scale will produce reasonable economic benefits. The original Ministry of Chemical Industry thought that the annual output of 3000t was most reasonable when the remanufactured rubber enterprises were located in certain provinces and cities in the 1970s. However, most of the fixed-point enterprises in China passed technological transformation and production capacity. It has increased by 1 or 2 times. Only the member companies of the China Rubber Industry Association's reclaimed rubber branch have production capacity of more than 10,000 t/a, and there are 49 companies with more than 5,000 t/a, of which the largest one is Jingdong. Rubber Co., Ltd. and Nantong Back Rubber Group Co., Ltd. have a production capacity of more than 30,000 t/a and an annual output of more than 20,000 tons, making it the world's largest manufacturer of recycled rubber. The product structure becomes more rational. The reclaimed rubber industry through the "85" and "Ninth Five-Year" technological transformations has enabled the product structure to be effectively adjusted and new products have become new economic growth points. The varieties of reclaimed rubber have grown from the original 13 to nearly 30 varieties in the six series of tires, footwear, miscellaneous plastics, specialty products, specialty products and export products. The birth of finely reclaimed rubber has further improved the appearance quality of recycled rubber, and all the indicators have surpassed that of foreign countries with recycled rubber. The increase of reclaimed rubber varieties and the improvement of product quality, especially the promotion and application of activated rubber powder and fine rubber powder, can fully meet the needs of the development of China's rubber industry, and are exported to foreign countries.
The level of technical equipment has been significantly improved
The technological transformation of the recycled rubber industry in China, whether it is production capacity, or process technology and equipment, all rank first in the world, mainly in:
1. The new dynamic desulfurization process replaces the oil and water-oil process backward processes, fundamentally solves the problem of waste water pollution, thereby reducing energy consumption and improving product quality, so that the technological level of our country's recycled rubber production technology as a whole reaches the world's advanced level. Level.
2. Breakthrough development in the use of professional equipment for the recycling of used rubber. The successful development of radial tire crusher can completely replace imported equipment; the development of fine crusher has promoted the development of rubber powder industry in China; crushing equipment has developed in the direction of high speed ratio, low line speed and high shear rate, and improved crushing efficiency. The invention of dynamic desulfurization tanks promoted the development of China's reclaimed rubber industry.
3. In the 1990s, China successfully developed a turboexpanded refrigeration rubber crushing method that achieved world-class technology and was more advanced than liquid nitrogen refrigeration in foreign countries.
4. Beijing Panyang Company has successfully developed the latest technology for producing fine rubber powders at room temperature, and is at the leading position in the world.
5. Qingdao Green Leaf Company successfully developed LY liquid nitrogen freezing fine powder, which is much lower than foreign liquid nitrogen consumption and reached the international advanced level.
Manage "secondary pollution" and improve production environment
The recycling of used rubber is a business that remedies the pollution of waste rubber and harms the environment. It does not allow secondary pollution. In order to achieve a clean and civilized production, the reclaimed rubber industry promotes dynamic desulfurization, which completely solves the problem of waste water pollution from the production process.
Kunming University of Science and Technology has successfully developed a biological exhaust gas purification technology that can effectively purify and control waste organic rubber desulfurization and regeneration of low-concentration organic waste gas, which has been promoted in the whole industry. Since then, the recycled rubber industry has achieved no waste water, no exhaust gas, no pollution, and achieved clean production.
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