本文介绍的新型豆石滤板,用无毒树脂作粘结剂。在强度、透水性和耐侵蚀性等方面,均较水泥豆石滤板有所提高。全文分材料组成、制作方法、质量检查、使用寿命、规格及费用等诸节作了逐一介绍。 The new type of bean-pearl filter plate described in this article uses a non-toxic resin as a binder. In terms of strength, water permeability, and erosion resistance, they are all improved compared to cement dregs filter plates. The full text of the material composition, production methods, quality inspection, service life, specifications and costs and other sections were introduced one by one.