Waste plastic waste rubber have any use? University of new south wales, Australia professor d petrovna Louis saha auspicious varah developed a will waste rubber, plastic used in steel production method, the new polymer injection technology (PIT). This technology can not only greatly reduce the waste rubber, plastic caused by environmental pollution, but also can effectively reduce the steel production cost. Australia first steel companies have the technology to use in production and to reduce the power consumption of steelmaking and cost.
According to Australia first steel companies relevant controller introduces,color film waste rubber and plastic contains a lot of carbon, would scrap rubber and plastics as substitute of carbon element in LianGangLu arc, had originally been "lock" the carbon in the abandoned plastic in ultra-high temperature will occur under reaction, and coal burning together be clean fuel, so as to reduce greenhouse gas emissions, and at the same time also eased the landfill them as the environmental pollution problems.
He told reporters, polymer injection technology (PIT) benefit is, by injected the polymer and coke or the mixture of anthracite, it can increase the volume of the molten slag and improve the sparkling degrees, so can extend the arc length, increase from the arc to steel heat transfer quantity, reduce after slag and side wall heat loss, which can improve the power efficiency. In this way, can reduce about 3% of the power consumption.
The officials say, 3% is not small number,pvc shower curtain because each one ton refined, about 24% of the cost comes from the cost electricity. The polymer injection technology, each tried one furnace steel, average need of total carbon injected can reduce 10 ~ 20% (as the use of coke quality and decide), plus the potential of the polymer costs less than coke, carbon into the total cost of the thing can save a 15 to 35%.
He said that, at present, the polymer injection technology in Sydney and Melbourne first steel company in the factory has become a conventional technology, pvc color filmin foreign momentum of development is also very good. Only in Australia, many LianGangLu adopted the technology, which is equivalent to 1 million every year consumption only waste tyre.
The technology has the potential to sharply reduce the number of landfill waste tires. The treatment of waste tyre is haunting the many countries. In 1990, the only European scrap tire to reach 2 million tons (18 million only), the Numbers in the end of the century will reach 21 million tons.
Australia a steel group test showed that, the use of the PIT will not the quality of the environment of steel or negative effects. The first steel company group also have got new south wales government green earth award in 2011.
In 2010, the global steel output of more than 1.4 billion tons, including more than 400 million tons of is the EAF (arc furnace) process of refining and become. Therefore, this technique is very large.