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1990年4月24～25日,在山东兖州矿务局兴隆庄煤矿选煤厂召开了上海矿筛厂三项新产品鉴定会,参加会议的有20个单位的62位代表。上海矿筛厂根据国家科技攻关项目——大型选煤厂设备,受原机械工业部重矿局的委托,承担了“不锈钢焊接筛网的制造工艺及焊接强度试验研究”的课题,为立式振动离心脱水机研制筛网,为振动筛研制筛板,为弧形筛研制筛网。从1985年至1989年4年多的时间,在兴隆庄煤矿选煤厂进行了工业运行试验。结果表明,寿命比原产品提高2～3倍,达12～18个月,各项指标达到美国产品的水平。特别值得指出的是,我国原来生产的离心脱水机筛网和振动筛筛板,在重介
April 24 ~ 25, 1990, Shandong Yanzhou Mining Bureau Xinglongzhuang Coal Mine Coal Preparation Plant held three new product appraisal meeting in Shanghai Mine Screening Plant, attended the meeting with 62 representatives of 20 units. According to the national scientific and technological project - a large-scale coal preparation plant, Shanghai Mine Sieve Plant was entrusted by the Bureau of Heavy Mines of the former Ministry of Machinery Industry to undertake the task of “experimental study on the manufacturing process and welding strength of stainless steel welding sieves” Vibration centrifugal dewatering machine developed mesh sieve for the development of sieve sieve, screen sieve for the development of curved sieve. From 1985 to 1989, more than four years, Xinglongzhuang Coal Preparation Plant carried out industrial operation test. The results show that the life expectancy than the original product increased by 2 to 3 times, up to 12 to 18 months, the indicators reached the level of the United States products. In particular, it is worth pointing out that the centrifuge dewatering machine screen and shaker sieve plate originally produced in our country were used in heavy medium