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莹石(CaF_2)的应用范围相当广泛,是冶金、化工、陶瓷、农药、塑料、光学工业等重要原料。我国莹石蕴藏量丰富,是世界八个主要开采加工国之一,年产量居世界第四位。浙江东风莹石公司负有重要的生产和出口任务,占全国总产量的1/4。该公司由于1963年以前对粉尘特别是莹石混合性粉尘联合怍用认识不足措施不力,致使这个井下工人700名左右的中小型矿山三十年来累计发生了828名尘肺患者,其中病死者已达179人。1966年全面采取防尘综合措施后,在降低粉尘浓度、防止尘肺发生方面均取得显著成绩。扭转了以往尘肺发生发展的严重状况。现对该公司防尘综合措施评价及其经济、社会效益综合分析如下:
Fluorite (CaF_2) a wide range of applications, is metallurgical, chemical, ceramics, pesticides, plastics, optical industry and other important raw materials. China has rich reserves of fluorite, which is one of the eight major mining and processing countries in the world and ranks the fourth in the world in annual output. Zhejiang Dongfeng Yingshi company has an important production and export tasks, accounting for 1/4 of the country’s total output. Due to the lack of knowledge on the combination of dust, especially fluorite mixed dust, before 1963, the company caused a total of 828 pneumoconiosis patients in about 700 small and medium-sized mines of about 700 workers, of whom the deceased reached the dead 179 people. In 1966, a comprehensive anti-dust comprehensive measure was adopted to achieve remarkable results in reducing the dust concentration and preventing the occurrence of pneumoconiosis. Reversed the serious situation of pneumoconiosis occurred in the past. Comprehensive evaluation of the company’s comprehensive dust prevention measures and their economic and social benefits are as follows: