IMPREGNATION APPARATUS FOR MANUFACTURING OF NATURAL HEMP FIBER FLAME-RETARDANT BOARD

摘要

The purpose of the present invention is to provide an impregnation apparatus for manufacturing a natural hemp fiber flame-retardant board which facilitates the control of a flame-retardant agent while shortening an impregnation tank for impregnating and compressing a natural hemp fiber plate by realizing a multi-layered pressing roller in the form of an upper pressing roller with a long diameter in the middle and a plurality of lower pressing rollers with a short diameter around the upper pressing roller; and has a flame-retardant property, insulation and strength thereof improved by sufficiently and evenly impregnating, with flame-retardant resin liquid, air layers formed between nap on the surface of natural hemp fiber plate. To achieve the purpose, the present invention provides an impregnation apparatus (200) for manufacturing a natural hemp fiber flame-retardant board which presses and impregnates the natural hemp fiber plate when passing the natural hemp fiber plate through the pressing roller (230) by installing the upper pressing roller (231) in the middle and lower pressing rollers (232) with a shorter diameter than that of upper pressing roller (231) around the upper pressing roller (231) at regular intervals to face each other.