With rapid development of economy and urbanization, China faces a serious water environment and severe water pollution. Water treatment plants play an important role in improving water environment, but they also energy intensive enterprises, which are in the top ten of high consumption industry. As significant standards for sustainable development of economy and society, water pollution control and energy conservation and emission reduction are of great urgency.
At the end of 2013, there were 5300 sewage treatment plants commonly with problems of high energy consumption. Current consumption is the main energy consumption of sewage treatment plants. Treatment of a cubic meter of water cost 0.2-0.3KWH, of which electricity charge covers 50%-70% of the cost of sewage treatment. On one hand, high energy consumption leads to high sewage treatment cost, which increases energy consumption. On the other hand, it pushes some small-medium sewage treatment plant into troubles, which hinders normal efficiency of energy conservation and emission reduction of sewage plants.
Industrial experts indicate that most sewage plants in our country need upgrading and reconstruction. Sewage treatment industry will face unsustainable problems if they continue treatment with high energy consumption and high material consumption. Many insiders appeal to society to pay more attention to these problems, create a set of standard, launch problems and guide technology upgrading for water treatment with high energy consumption is an undesirable measure to reduce pollutant in water.
Blowers are key equipment for aeration during sewage treatment process, of which consumption covers 40%-80% of total energy consumption of sewage treatment plants. Therefore, energy-saving efficiency brings direct influence on benefits of water plants.
Under existing technological level, which is the best blower? Due to compact structure, high efficiency, excellent regulation performance, low noise, simple operation and high reliability, permanent magnet maglev high-speed blowers draw much attention and become the most favorite blowers of sewage plants.
The treatment effect brought by neodymium magnet maglev high-speed blowers has been verified in foreign countries. Four 80kW blade blowers used by a French sewage plant have many problems of frequent start and stop, high energy consumption and high noise. But with 2 160kW NdFeB maglev blowers, it can save 500KWH of electricity, reduce 375 tons of carbon dioxide, decrease cost by 5400 Euro, and lower noise by 40dba. Also, before reconstruction, an American sewage plant consumed 3200KWH electricity in a year, but after using a permanent magnetic maglev blower, it only consumes 1800KWH electricity per year, which has been reduced by 40%.
Insiders show strong interest in neodymium magnetic maglev high-speed blowers. Chen Fengyi, secretary-general of Fan Sub-Association of China General Machinery Industry Association says that development of NdFeB magnet maglev blower technology provide a strong guarantee for energy consumption and environment protection. Maglev blowers applied to chemical area, in particular, open an unprecedented area for blowers.
China Rare Earth Magnet Limited
Tags: China Magnet, Permanent Magnet, Neodymium Magnet, Maglev
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