阅读说明：本技术 一种用于立式压滤机的滤布及其制备方法 (Filter cloth for vertical filter press and preparation method thereof ) 是由 毕蕾 王继光 于 2020-06-01 设计创作，主要内容包括：本发明涉及滤布制备工艺,具体的说是一种用于立式压滤机的滤布及其制备方法。滤布由经、纬线交织形成高强低伸基布；再经针刺方式,在基布表层植入至少一层的短纤维网,形成短纤维间隙过滤层；而后通过热压,使表层低熔点纤维熔融挤压,形成小孔径滤膜层的复合滤布。由经、纬向纱线交织形成机织高密基布；在基布表面,以短纤维为原料针刺至少一层的纤维网,进而作为短纤维过滤层,而后通过热压使短纤维间隙过滤层的表层形成滤膜,即形成小孔径滤膜层的复合滤布。本发明中机织高强低伸基布为由经、纬向纱线构成稳定的二维结构,使织物强力高,伸长率小,尺寸稳定性高,满足压滤机对滤布低伸长的要求,保证使用寿命长,过滤效果稳定。(The invention relates to a filter cloth preparation process, in particular to a filter cloth for a vertical filter press and a preparation method thereof. The filter cloth is formed by interweaving warps and wefts into high-strength low-elongation base cloth; then, at least one layer of short fiber net is implanted into the surface layer of the base cloth in a needling mode to form a short fiber gap filtering layer; and then, the low-melting-point fibers on the surface layer are melted and extruded through hot pressing to form the composite filter cloth of the small-aperture filter membrane layer. Weaving high-density base cloth by interweaving warp yarns and weft yarns; at least one layer of fiber net is needled on the surface of the base cloth by taking short fibers as raw materials to serve as a short fiber filtering layer, and then a filtering membrane is formed on the surface layer of the short fiber gap filtering layer through hot pressing, namely the composite filtering cloth of the small-aperture filtering membrane layer is formed. The woven high-strength low-elongation base cloth is a stable two-dimensional structure formed by warp yarns and weft yarns, so that the woven high-strength low-elongation base cloth is high in strength, small in elongation and high in dimensional stability, meets the requirement of a filter press on low elongation of filter cloth, and ensures long service life and stable filtering effect.)