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The Situation of the Tire Recycling of China

Often referred to as "black pollution" of discarded tires are melting or refractory non-polymer elastic material, with a strong heat, anti-biological, anti-mechanical, and difficult to degrade. The long-term open-air piling up, not only occupy large areas of land, but also can easily create a mosquito-borne diseases, posing a fire. On the other hand, waste tires as a renewable resource known as the "black gold." After repeated refurbished a used tires is equivalent to 2 ~ 3 tires, while the renovation is only the equivalent of the raw materials consumed in production of a new tire with the specifications of 15% ~ 30%, the price of new tires is only 20% to 50%. Tires contain 22% ~ 24% of nylon and other synthetic fibers can be processed into plastic products, 16% ~ 24% of high-quality spring steel for the raw materials, 58% ~ 60% of the rubber mixture of recycled rubber to produce rubber powder and its products and extension products can be widely used in rubber, chemical, transportation, and urban construction and other important industry in the national economy, has become an important secondary resources. Therefore, how to make full use of discarded tires in China, saving rubber resources, prevent environmental pollution, China's sustainable socio-economic development must be addressed. At present, China Resources Comprehensive Utilization of discarded tires to the following several ways: (1) prototype transformation of discarded tires. Through bundling, cutting, punching, etc., will be discarded tires to transform the port terminal and the ship's fenders, anti-wave protection dams, floating lighthouse, road traffic wall screens, signs, and reef fish aquaculture, recreational and other playground equipment. Prototype transformation is a very valuable collection methods, but the method does not consume large amount of discarded tires, accounting for only 1% of the amount of discarded tires, it can only serve as a complementary way. (2) pyrolysis waste tires. Tires at high temperature cracking can be extracted with high heat value of gas, rich in aromatic oil, carbon black and steel and so on, but the method is technically complex, high cost and could easily lead to secondary pollution, and poor quality of recycled material and unstable, There is no promotion in the country. (3) The renovation of old tires. Tire renovation means the tire by the local repair, processing, re-posted review tread rubber, for vulcanization, a process to restore its value. Automobile tire in the course of the destruction of the most common way is the tread of the damage, so tire renovation is one of the main ways to use old tires. In use, well-maintained under the conditions of a tire can be refurbished several times, at least make the tire to extend the overall life of a ~ 2-fold. Each refurbished once the new tires can be re-paid the equivalent of the life of 60% to 90% of the life of the average mileage of about 50000-70000 km. Tire renovation not only extended the life of automobile tires, used tires contributed to the reduction, but also reduce environmental pollution, is an important industry of circular economy. At present there are about more than 500 tire retread business more than 90% belong to small and medium enterprises, the annual capacity to 15 million refurbishment, renovation and new tire production volume of about 4%. (4) the use of old tires and production of renewable rubber. Recycled rubber tires is milled into rubber granules, water and other chemical substances, in the pressurized, heated under the conditions of its "anti-hardening", and then by mechanical squeezing to restore its original state. Reclaimed rubber production of the existence of low profits, labor-intensive production processes long, energy consumption, and pollution were serious shortcomings, so the developed countries had gradually reduce its output of reclaimed rubber, there are plans to shut down reclaimed rubber factory. Due to historical reasons, China's production of reclaimed rubber is still the major means of waste tire recycling, annual production of more than 100 million tons, is truly "renewable rubber kingdom." (5) the use of old tires and production of vulcanized rubber powder. Vulcanized rubber powder is milled into the tires a good dispersion of rubber particles, in which metal, textiles and material has been removed, the nature of light and dry, with a good surface area. Compared with the traditional reclaimed rubber, rubber powder production is not secondary pollution, waste tire utilization rate of 100%, can be extended into high value-added and new products can be recycled, for example, the production of new tires to replace tires; production of rubber products , waterproof material; production of rubber and plastic ties instead of cement, timber sleepers, etc.; production of powder modified bitumen, SBS can replace synthetic rubber, and has lower noise, lower costs and extend the life of the advantages of the road. So this is a set of environmental protection and resource  tire recycling and the use of  tire recycling as one model, which is the best use of the development of circular economy approach. Powder manufacturing industry in China has just started, only dozens of manufacturers, annual output of less than 50000 t, have not formed the emerging industry. From the perspective of circular economy, waste  tire recycling of resources should first consider the cycle of materials (such as the renovation of the old tires), and then consider the chemical  tire recycling (such as the production of reclaimed rubber), and finally to consider energy recovery (combustion power generation). Therefore, because of all these advantages and disadvantages, the comprehensive utilization of waste tires should be vigorously promoted tires refurbished and powder production technology, restricting the use of thermal energy utilization technologies, eliminating the use of reclaimed rubber production and pyrolysis technologies.
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The best choice for comprehensive utilization of waste tires——Tire renovation

In recent years, with the rapid development of China's automobile industry, tire industry has entered a period of rapid expansion of growth, China has become the world's tire production and consumption power. However, very limited resources and lack of natural rubber in China, with annual demand of 73% is imported, the "consumption of superpower" that we are not good at saving and comprehensive utilization of resources, is taking the "substantial development resources, large-scale production of products, mass consumption a large number of generated waste "This has been abandoned in developed countries, to overdraft of resources and damage to the environment at the expense of development. Therefore, how to discarded tires resource recovery, reduction, detoxification, not only to environmental protection of this important social problem, but also ensure that our national economy, an important prerequisite for sustainable development.

Recycling of waste tires in China, mainly for the production of reclaimed rubber, its production capacity is more than 1 million tons, ranking first in the world; followed by the powder used to produce an annual output of about 5 million tons, production capacity reached 30 million tons, the market capacity yet to be secondary development. In order to maximize the effectiveness of the use of scrap tires, the international community usually "first refurbished after scrapping" approach. England's Environmental Protection Agency released to the world that the EIA report lists the various approaches made of discarded tires, which get the best tire turning points in the six negative impact on the environment, the retread tires with minimal impact. It was concluded that tire retreading is beneficial to environmental protection, the most practical approach.

In use, well-maintained under the conditions of a tire can be refurbished several times, including nylon tire cord can be refurbished for 2 ~ 3 times, steel radial tire can be refurbished for 3 ~ 6 times. Each refurbished once the new tires can be re-paid the equivalent of 60% to 90% of the lifetime, the average mileage [synthesis Photo forum] for 50000 ~ 7 thousand kilometers. Through several renovation will enable the tire to extend the overall life of a ~ 2-fold. The renovation of a discarded tires, compared with production of a new tire (in 9.00R20 for example) can save rubber 9kg, carbon black 4kg, steel cord 3.4kg, oil 18kg, steel, 1.75kg, the value of resources consumed in producing an equivalent new tires 15% ~ 30%, prices for new tires 20% ~ 50%.

Tiantai County, Zhejiang Province, Yang Machinery Factory is located in the country days Class 4A [synthesis Photo Forum] scenery [synthesis Photo Forum] area east of Tiantai Mountain, beautiful environment and convenient transportation. CNC is a professional production of energy-saving tire repair machine, fill tire air bags, tire repair glue, playing hair machines, refurbished equipment, tire repair equipment, tools and materials. One of NC energy-saving tire fill the entire fuselage with aluminum ingot casting machines, heating devices, either directly placed on aluminum mold, the heating up fast, constant temperature lasting, energy-saving, environmental protection, easy to operate and so on. Fill the entire fetal balloon using only natural rubber manufacture, difficult to aging, long-lasting. Tire repair equipment products have stable performance, high efficiency, low energy consumption, safety and practical characteristics that earns the market of all ages.

It is understood that, due to waste tire recycling , storage, processing difficulties, the traditional materials recycling sector has never been included in the waste tire recycling range of countries do not have the relevant policies and regulations, resulting in a long-term there is no recycling of waste tires and recovery of the main channel, essentially by the private sector scattered individual business households purchase less, and can not provide regular sales invoices, to turn tire industry (especially the state-owned enterprises) operations unnecessary trouble, increasing operating expenses. Therefore, no matter from which perspective, should be to establish a unified distribution of waste tire recycling center or market transactions and to give some preferential policies to ensure that technological renovation of enterprises that receive adequate fetal sources, to maximize their value, increase in the number and life of tire retread.
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The PET bottle recycling

The PET bottle recycling

Purification and decontamination – the most important processing steps during polyester recycling

The success of any recycling concept is hidden in the efficiency of purification and decontamination at the right place during processing and to the necessary or desired extent.

Generally, the following applies: the sooner foreign substances are removed, in the process, and the more thoroughly this is done, the more efficient the process is.

The high plasticization temperature of  PET in the range of 280°C is the reason why almost all common organic impurities such as PVC, PLA, polyolefin, chemical wood-pulp and paper fibers, polyvinyl acetate, melt adhesive, coloring agents, sugar and proteins residues are transformed into colored degradation products which, in their turn, might release reactive degradation products additionally. Then, the number of defects in the polymer chain increases considerably. Naturally, the particle size distribution of impurities is very wide, the big particles of 1 000 - > 60 µm - which are visible by naked eye and easy to filtrate - representing the lesser evil since their total surface is relatively small and the degradation speed is therefore lower. The influence of the microscopic particles, which – because they are many - increase the frequency of defects in the polymer, is comparable bigger.

The motto "What the eye does not see the heart cannot grieve over" is considered to be very important in many recycling processes. Therefore besides efficient sorting the removal of visible impurity particles by melt filtration processes is playing a particular part in this case.

In general one can say that the processes to make PET bottle flakes from collected bottles are as versatile as the different waste streams are different in their composition and quality. In view of technology there isn’t just one way to do it. There are meanwhile many engineering companies which are offering flake production plants and components and it is difficult to decide for one or other plant design. Nevertheless there are principles which are sharing most of these processes. Depending on composition and impurity level of input material the general following process steps are applied.

Purification, also PET bottle washing , and we -  Raidsant provide PET bottle washing line.
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Tire recycling-2

  Tire recycling is the process of recycling vehicles tires (or tyres) that are no longer suitable for use on vehicles due to wear or irreparable damage (such as punctures).
These tires are among the largest and most problematic sources of waste, due to the large volume produced and their durability. Those same characteristics which make waste tires such a problem also make them one of the most re-used waste materials, as the rubber is very resilient and can be reused in other products.
Approximately one tire is discarded per person per year. The U.S. Environmental Protection Agency reports 290 million scrap tires were generated in 2003. Of the 290 million, 45 million of these scrap tires were used to make automotive and truck tire re-treads. With landfills minimizing their acceptance of whole tires and the health and environmental risks of stockpiling tires, many new markets have been created for scrap tires.
Presently, waste tire recycling equipment provided by our domestic competitors usually can produce 20-40 meshe rubber powder under normal temperature. However, low capacity and overusing of energy generate huge cost on production.
Waste tire recycling line(Also named Tyre recycling equipment),protecting our environment.
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PET bottle washing line

PET bottle washing line

Application:
 QX type PET washing line were developed by introducing international advanced technology. From the start point to the last step the waste plastics such as beverage PET bottles hard plastic packing materials can be easily washed. The line was regarded as the popular recommended machinery of green environment protection field. Such kind of washing equipment lines were applied in Germany, Hungary, Lithuania, Belgium, France, Luxemburg and some African countries.
Raidsant Machinery Co., Ltd define the recycling of PET as to process the used PET in a proper way to make it reverted as picket PET for remake. There are a huge demand in Chemical fiber field. Due to sanitation the empty PET bottle brought from people's meal should be highly considered. The bottle's cap and support divided from it are also can be recycled together. The key problem is how to improve the quality of washing in the recycling line for many years.
Steps of recycling:
Assorting -- stuff-- rinsing--dehydration--desiccation--granule, including collocating scour and recycling equipments.

Except for this our other main products include: waste tire recycling line, Labels and caps removing machine, Waste film washing recycling linePipe shredder, Granulator, continous annealing tin-coating machine, SDP double rails plastic recycling crusher, sharpening machine etc.


Source From:
http://www.raidsantmachine.com/news/index_1.html
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Tire recycling

Tire recycling

Tire recycling is the process of recycling vehicles tires (or tyres) that are no longer suitable for use on vehicles due to wear or irreparable damage (such as punctures). These tires are among the largest and most problematic sources of waste, due to the large volume produced and their durability. Those same characteristics which make waste tires such a problem also make them one of the most re-used waste materials, as the rubber is very resilient and can be reused in other products.

Tires are also often recycled for use on basketball courts and new shoe products. However material recovered from waste tires, known as "crumb" is generally only a cheap "filler" material and is rarely used in high volumes. It is arguable that tire crumb in applications such as basketball courts could be better described as "reused" rubber rather than "recycled".

Our main products include QX PET washing line, Labels and caps removing machine,

Granulator, waste tire recycling line, Pipe shredder , continous annealing tin-coating machine, Waste film washing recycling line, SDP double rails plastic recycling crusher, sharpening machine etc., We acquired many technical patents.


Tire recycling


Source From: http://www.raidsantmachine.com/news/item_238.html
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