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上世纪八十年代末九十年代初,晋陕蒙接壤地区进入煤田大开发时期。为了改变煤炭工业产品单一的结构,追求新的经济增长点,原始落后的土法炼焦再度出现,一度时间煤区许多乡镇几乎村村炼,满山遍野火海一片,卫星监测甚至误报为森林火灾,引起了党中央、国务院有关领导的关注。1993年国务院环委会在榆林召开了晋陕蒙接壤区环保现场检查会,将土焦改造列为区域三大环境治理工程的重点之一。许多科研机构积极组织科技人员进行探索代土炼焦的新炉型。
In the late 1980s and early 1990s, the border areas of Shanxi, Shaanxi and Inner Mongolia entered the coalfield development period. In order to change the single structure of the coal industry products and pursue new economic growth points, primitive and backward indigenous coking reoccurred. For a time, almost all towns and villages in the coal area were practicing village and village fireworks, and the satellite monitoring even falsely reported as a forest fire and caused Concerned about the leadership of the Central Party Committee and the State Council. In 1993, the State Council Environmental Committee held an environmental site inspection meeting in the border area of Shanxi, Shaanxi and Inner Mongolia in Yulin. It listed the renovation of the coke as one of the three major environmental management projects in the region. Many research institutes actively organize scientific and technical personnel to explore a new type of furnace coke earth.