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前言本文着重介绍1969年以来铁合金工业污染控制的进展,重点放在管理条例的进展、烟尘控制工艺的改进和总的效果方面。1969年以来在技术上没有什么新的重大改革,但是根据实际经验(特别是应用袋式除尘器的经验),使最初的一些设想更加完善和细致。管理条例的进展空气污染1971年以前,美国现有铁合金电炉烟尘排放管制条例只在个别地区有效,对许多地区并未强制要求采取污染控制的措施。1970年净化空气法的修正案要求把管制条例扩大到全国执行。1971年4月30日,根据修正
Preface This article highlights the progress made in ferroalloy industrial pollution control since 1969, focusing on the progress of regulations, the improvement of smoke and dust control processes, and the overall effect. There have been no technically significant new reforms since 1969, but based on practical experience, especially the experience of using baghouses, some of the original ideas were refined and refined. Progress in regulations The air pollution by 1971, the United States existing ferroalloy furnace emissions control regulations only valid in some areas, for many areas does not require mandatory pollution control measures. The Amendment to the Clean Air Act of 1970 called for the regulation to be extended to national execution. April 30, 1971, as amended