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"If waste tires are allowed to be refined by small workshops, they will inevitably increase the level of air pollution. If they are used scientifically and comprehensively, the benefits will be very significant." Recently, Zhang Hongmin, chairman of Shandong Rubber Industry Association, interviewed by reporters. Said.
Since the beginning of the winter, the haze weather that lasted for many days and ravaged more than half of China has focused people's attention on how to save energy and reduce emissions. The effective use of used tires can be described as an important means. It is understood that with this opportunity, Shandong and other provinces have increased the use of waste tires, the entire market has shown many years of fiery scene.
“The province not only ranks first in tire production in the country, but also in the forefront of comprehensive utilization of used tires.†Zhang Hongmin said that the use of scrap tires in Shandong Province is mainly to produce recycled rubber, rubber powder and tire retreading. Among them, the production of reclaimed rubber and rubber powder accounted for about 17% of the total output of the country, and tire reconditioning accounted for more than 15%.
With the recent increase in environmental pressure and the increase in hazy weather, related companies have continued to expand production, while the technological changes in the use of used tires have increased and achieved good results.
According to reports, there are more than 10 enterprises with a scale of over 10,000 tons of recycled rubber and rubber powder production in Shandong, and more than 80 companies with a scale of over 0.5 million tons. Among them, the 20-recycled rubber production line of Laiwu Fuquan Rubber Co., Ltd., the largest capacity-producing enterprise, is currently operating at full capacity and has annual production capacity increased from 50,000 tons to over 80,000 years ago. More tons. Its high-temperature dynamic desulfurization production process has a high degree of automation. Related products are sold to domestic well-known tire manufacturers such as Delta and Fengshen. The actual annual sales revenue reaches 270 million yuan. Driven by the company, Laiwu City has become the largest waste rubber distribution base and processing base north of the Yangtze River.
Another example is the China (Binzhou) tire retreading and recycling research center, recently successfully developed more than 70 patents for discarded tires processing patents, of which more than 20 international PCT (Patent Cooperation Agreement) patents. Under the support of relevant technologies, there are more than 100 waste tire recycling and primary processing enterprises in Binzhou City, which annually use 600,000 tons of used tires, and there is basically no secondary pollution.
It is understood that compared with new tire manufacturing, tire retreading saves a lot of tire production intermediate links, and is the internationally recognized main way to recycle tire resources. The annual production capacity of the company's Triangle Company and Race Wheels' tire refurbishment plants exceeds 100,000, and the development potential is very large.
Expect more policies to force <br> <br> In fact, the use of space scrap tires is far more than that. Recently, the Chongqing section of the Chongqing-Chengdu Expressway, the first low-carbon and eco-friendly expressway in China, was completed and open to traffic. The road surface pavers used rubber asphalt produced from used tires as raw materials. Li Ning, chairman of China Railway Construction Investment Corporation, revealed that the new products have reduced the emission of harmful gas, bituminous smoke by 90%, greenhouse gas emissions by nearly 50%, and energy saving by 40%.
“How much, unfortunately, compared with the huge market space for used tires, the potential for the use of used tires in China has not yet been fully tapped.†said Ji Kuijiang, a senior expert in waste rubber application research in China and a professor at Qingdao University of Science and Technology, China Annual production of tires has exceeded 800 million, and used tires have exceeded 400 million. However, the industrialized recycling rate of used tires is less than 50% (more than 90% in developed countries).
Ji Kuijiang introduced that a large number of used tires are discarded everywhere, piled up in the open air, or flow into small workshops for refurbishment and land-based oil refining. Not only is there a huge potential safety hazard, it occupies valuable land resources, and its two evil dioxin produced after its incineration Poisonous and harmful components pollute the air and intensify the formation of hazy weather.
Although there is no problem with the quality of formal enterprises, Ji Kuijiang also admitted that compared with developed countries, due to late start and other reasons, China's waste tire utilization industry still has a relatively backward technology, high energy consumption, there is still some pollution to the environment Waiting for a short board, you need to pay close attention to make up.
"To fully exploit the potential of the use of used tires, national policies must also be implemented." Zhang Hongmin suggested that legislation should be adopted as soon as possible to implement a strict licensing system for the transportation, storage, treatment, and reuse of waste tires. Tire recycling companies have entered the waste tire recycling field, and given certain subsidies and tax incentives, through economic leverage to increase the enthusiasm of formal enterprises engaged in the recycling industry.
At the same time, resolutely banned small-scale local oil refining plants to increase the cost of environmental violations; and support enterprises in the development of new technologies for the recycling of waste tires.