| Noise that electricity stove produce at the steel-making up to 130dB (A ), far exceed the national requirement about 85dB (A ) of the ambient noise standard , has already brought danger to the operate workers, and also polluted the environment seriously. How to reduce the electricity stove noise is one of the profession key research topics at present domestic chirp controls. there is relatively riper technology abroad. In the domestic electricity stove steel-making project in the past, though adopted various noise control schemes, but the result is not very ideal. Through analyze the frequency spectrum of noise at the steel-making of the electricity stove, at digesting and assimilating foreign electricity stove foundations of different technology of noise control. this article, compare with various noise abatement schemes through analyzing, has proposed the experimental model of the DG-type electricity stove noise enclosures, pass theory result analysis and experiment test, prove the The volumn of noise separation sound of the DG-type electricity stove noise enclosures is in 40- 45dB (A), succeed utilizing in the Anyang iron and steel company 100t electricity stove noise control. At the same time through practise, find the DG-type electricity stove noise enclosures some problems too, and proposed solution . especially proposed one's own opinion of the use of the material, and provided the better implementing plan for the 60t electricity stove of Baoshan Iron and Steel Group the fifth steel company and 100t electricity stove of Baoshan Iron and steel Group the first steel company later on. The DG-type electricity stove noise enclosures is through using actually many times, the technology of the DG-type electricity stove noise enclosures quite to be mature, it may widely utilize in various electricity stove noise control, has very strong practical value, to improve the environment , benefit the society, have the extremely vital significance. |
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