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1986年2月1～23日,河南省选煤技术考察团一行5人对加拿大西部矿区和美国匹兹堡、西弗吉尼亚部分矿区的选煤情况进行了考察。这次考察的重点是了解加、美两国干法分选方面的技术和空气重介选煤技术的研究现状。探讨类似遇水易于泥化的新密煤、豫西缺水矿区煤炭的最佳加工方法。考察期间,参观了加拿大DB工程建筑公司及所属的“卡的纳尔”选煤厂、“格瑞其”选煤厂;“福定”煤矿有限公司及其所属的“福定”选煤厂;“爱的梦顿”旋流器工程制造厂;“赫麦尔”试验设备厂;及美国匹兹堡郊
February 1, 1986 ~ February 23, Henan coal preparation technology delegation of 5 people on the western part of Canada and the United States Pittsburgh, West Virginia part of the coal mining situation were investigated. The focus of this study is to understand the technology of dry separation in Canada and the United States and the status quo of research on air HMX technology. This paper discusses the best processing method of coal, such as new dense coal which is easy to muddy with water and coal in the water shortage area in western Henan. During the inspection tour, they visited Canadian DB Engineering & Construction Company and their affiliated “Card’s Nal” coal preparation plant, “Gurui” coal preparation plant, “Fuding” Coal Mining Co., Ltd. and its affiliated “Fuding” Coal Preparation Plant ; “Love the dream Dayton” Cyclone Engineering Works; “Hemer” test equipment plant; and the United States Pittsburgh suburbs