As limited resources to add rubber and rubber waste utilization, comprehensive utilization of waste rubber industry's history goes back to ancient times. The founding of New China in particular, the shortage of resources in the planned economy era, China had 20 tons of rice in exchange for 1 ton of natural rubber imports in history, when the plastic is also used as a renewable three types of highly strategic importance.
China's comprehensive utilization of waste rubber is a major production of renewable plastic and rubber powder. Support the industrial development of China's independent intellectual property rights of technology innovation: the dynamic method desulfurization technology and the production of reclaimed rubber of discarded tires to crush the technology at room temperature. At present, both ranking first in the world's leading technical level. Technological innovation, independent development has become the mainstream of the development of the industry.
The dynamic Desulfurization - reclaimed rubber production technology revolution
Prior to 1990, domestic production of renewable plastic basic law to stay in the oil, water, oil and so on the level of technology, production processes, equipment unchanged for decades. The oil law as a result of low product quality, production and the instability it is gradually phased out; water and the oil law, although technology is superior to the oil law, but the production of a large amount of industrial waste water heavily polluted environment. With the community's environmental protection requirements, as well as to increase the proportion of Synthetic Rubber in the increase in oil production of renewable sources of water pollution, plastic serious, high-energy consumption, low productivity shortcomings, has become the comprehensive utilization of waste rubber hinder the development of the industry bottlenecks, the State Explicitly prohibited to build new plants.
In the reclaimed rubber industry is facing a critical moment where, in 1990, the former Ministry of Chemical Industry and the China Rubber Division Rubber Industry Association, based on renewable sources of foreign plastic inspection process, combined with domestic production of the status quo, decisions in the industry to carry out waste rubber dynamic new desulfurization Technology research tests, then by the global rubber plant in Hefei, Shenyang and Tianjin Factory reclaimed rubber reclaimed rubber factory shared. In 1991, the project was included in the Ministry of Chemical Industry scientific and technological projects; in 1992, the project was included in the State Science and Technology Spark Program project. After 3 years of research, waste rubber dynamic new desulfurization technology to develop successful, and in 1994 adopted the former Ministry of Chemical Industry Science and Technology to identify. The dynamic Desulfurization waste rubber of the new technology has completely changed our country backward, and serious pollution of reclaimed rubber production technology, and promote the comprehensive utilization of waste rubber again the development of the industry, at the same time, the technology is also out of the country.
According to the detection, waste rubber dynamic new desulfurization technology for the production of reclaimed rubber, product performance, quality, reliability, the physical and chemical indicators are up to national standards. Oil and Water Act, to simplify the process, a reduction of investment. At that time, estimated that the country reclaimed rubber output of 30 million tons, such as the 2 / 3 of the use of technology, annual 95,160,000 kwh electricity, water-saving 5,520,000 tons, 81,800 tons coal, the direct cost 47,934,000 yuan. At present, China has been the production of renewable plastic dynamic desulfurization process.
Crushed at room temperature - wire scrap tire processing industrialization
In recent years, domestic enterprises in particular, to crush waste rubber tires in the scrap wire at room temperature has made a breakthrough smash, greatly promoted the regeneration of plastic and rubber industries. Among them, Zhejiang green rubber powder Central Engineering Company to develop self-year deal with the 15,000 tons of waste steel radial tire production line smash, 3 to adopt its own patented technology, process stability, low noise, pollution-free. Rubber Machinery Co., Ltd. Changzhou three of the development of low-power energy-saving products mill, in order to provide a comprehensive utilization of waste rubber Chuangxiao new energy-saving equipment. Jiangyin TSU ultra-fine powder plant is the first company engaged in the fine powder at room temperature devices developed by companies, in 1996 through the identification of Jiangsu Province, the XZ-300-pulverizer at room temperature ultra-fine rubber filled the gap. Sichuan Shuangliu Rubber Co., Ltd. days out of the one-time fine pulverizer at room temperature, when 80 heads of Taiwan stand-alone powder output reached more than 300 kg, power consumption is only 400 kwh, is the bias of waste tires, waste-butyl capsule, the repeal of the three Yuan ethylene-propylene rubber, and other fine crush of energy-saving models.
Environmental management - to improve the image of the industry as a whole
In the reclaimed rubber production, because of its desulfurization process in the production of hydrogen sulfide odor and no emissions standards, resulting in secondary pollution has seriously affected its image as an environmental protection industry. By Yan States Rubber Co., Ltd. of Jiangxi in 2002 the successful development of the physical law of renewable rubber Technological tail gas treatment plant, plagued changed the industry for many years and the stench of exhaust gas desulfurization governance. After treatment by the stench below the level of national standards 10,000 times, and the Department of Wu Ben-gas emissions, recycling exhaust gas as a fuel, again saving energy, reducing production costs. Central Division Sanming Chemical Rubber Co., Ltd. to develop the tower back to process gas purification system, so that the mineral content of tar and tasteless to achieve the production of renewable plastic. In addition, Phoenix Rubber Co., Ltd. and Kunming, Kunming University of Science and Technology to develop bio-gas purification devices, such as law.
At present, the industry with an annual output of more than 5,000 tons of reclaimed rubber business-to-gas desulfurization basically physical, biological and law reform on its own way, the basic secondary pollution has been an effective treatment.
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