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本刊1985年第四期刊登了任静湘同志的一篇文章“浅析贴砾滤水管的几个问题”。由于笔者是自1981年以来一直从事贴砾滤水管的生产和使用的技术工作,所以对任静湘同志“浅析”一文中提出的几个问题,也谈一些初浅的认识,以利本行业技术的发展。贴砾滤水管是一种新型的水井过滤器,它具有透水性好、挡砂可靠、可以提高成井质量、降低成井成本等一些优点,为此在一些国家得到广泛应用,许多国家都有经营此项生产的工厂,如联邦德国、日本、南斯拉夫、波兰、美国等。保定采矿机械厂是我国唯一的生产贴砾滤水管的厂家。自从1980年由地质矿产部组织鉴定推广以来,此项生产无论是生产工艺、成型方法、还是砾石级配
In the fourth issue of the magazine, published in 1985, an article by Comrade Ren Jingxiang analyzed “a few problems in pebble filter pipes.” As the author has been engaged in the technical work for the production and use of gravel filter pipes since 1981, he also discussed some of the issues raised in Comrade Ren Jingxiang’s article “An Analysis”. Industry technology development. The gravel filter pipe is a new type of well filter, which has some advantages such as good water permeability, reliable sand-retaining, can improve the quality of wells, and reduce the cost of wells. It is widely used in some countries and many countries have this Production factories such as Federal Republic of Germany, Japan, Yugoslavia, Poland, and the United States. Baoding Mining Machinery Factory is the only manufacturer in China that produces pebble water filter pipes. Since 1980, the Department of Geology and Mineral Resources has organized and promoted this production regardless of production process, molding method, or gravel grading.